| /* dwarf.c -- display DWARF contents of a BFD binary file |
| Copyright (C) 2005-2017 Free Software Foundation, Inc. |
| |
| This file is part of GNU Binutils. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA |
| 02110-1301, USA. */ |
| |
| #include "sysdep.h" |
| #include "libiberty.h" |
| #include "bfd.h" |
| #include "bfd_stdint.h" |
| #include "bucomm.h" |
| #include "elfcomm.h" |
| #include "elf/common.h" |
| #include "dwarf2.h" |
| #include "dwarf.h" |
| #include "gdb/gdb-index.h" |
| |
| static const char *regname (unsigned int regno, int row); |
| |
| static int have_frame_base; |
| static int need_base_address; |
| |
| static unsigned int last_pointer_size = 0; |
| static int warned_about_missing_comp_units = FALSE; |
| |
| static unsigned int num_debug_info_entries = 0; |
| static unsigned int alloc_num_debug_info_entries = 0; |
| static debug_info *debug_information = NULL; |
| /* Special value for num_debug_info_entries to indicate |
| that the .debug_info section could not be loaded/parsed. */ |
| #define DEBUG_INFO_UNAVAILABLE (unsigned int) -1 |
| |
| unsigned int eh_addr_size; |
| |
| int do_debug_info; |
| int do_debug_abbrevs; |
| int do_debug_lines; |
| int do_debug_pubnames; |
| int do_debug_pubtypes; |
| int do_debug_aranges; |
| int do_debug_ranges; |
| int do_debug_frames; |
| int do_debug_frames_interp; |
| int do_debug_macinfo; |
| int do_debug_str; |
| int do_debug_loc; |
| int do_gdb_index; |
| int do_trace_info; |
| int do_trace_abbrevs; |
| int do_trace_aranges; |
| int do_debug_addr; |
| int do_debug_cu_index; |
| int do_wide; |
| |
| int dwarf_cutoff_level = -1; |
| unsigned long dwarf_start_die; |
| |
| int dwarf_check = 0; |
| |
| /* Collection of CU/TU section sets from .debug_cu_index and .debug_tu_index |
| sections. For version 1 package files, each set is stored in SHNDX_POOL |
| as a zero-terminated list of section indexes comprising one set of debug |
| sections from a .dwo file. */ |
| |
| static int cu_tu_indexes_read = 0; |
| static unsigned int *shndx_pool = NULL; |
| static unsigned int shndx_pool_size = 0; |
| static unsigned int shndx_pool_used = 0; |
| |
| /* For version 2 package files, each set contains an array of section offsets |
| and an array of section sizes, giving the offset and size of the |
| contribution from a CU or TU within one of the debug sections. |
| When displaying debug info from a package file, we need to use these |
| tables to locate the corresponding contributions to each section. */ |
| |
| struct cu_tu_set |
| { |
| uint64_t signature; |
| dwarf_vma section_offsets[DW_SECT_MAX]; |
| size_t section_sizes[DW_SECT_MAX]; |
| }; |
| |
| static int cu_count = 0; |
| static int tu_count = 0; |
| static struct cu_tu_set *cu_sets = NULL; |
| static struct cu_tu_set *tu_sets = NULL; |
| |
| static void load_cu_tu_indexes (void *file); |
| |
| /* Values for do_debug_lines. */ |
| #define FLAG_DEBUG_LINES_RAW 1 |
| #define FLAG_DEBUG_LINES_DECODED 2 |
| |
| static unsigned int |
| size_of_encoded_value (int encoding) |
| { |
| switch (encoding & 0x7) |
| { |
| default: /* ??? */ |
| case 0: return eh_addr_size; |
| case 2: return 2; |
| case 3: return 4; |
| case 4: return 8; |
| } |
| } |
| |
| static dwarf_vma |
| get_encoded_value (unsigned char **pdata, |
| int encoding, |
| struct dwarf_section *section, |
| unsigned char * end) |
| { |
| unsigned char * data = * pdata; |
| unsigned int size = size_of_encoded_value (encoding); |
| dwarf_vma val; |
| |
| if (data + size >= end) |
| { |
| warn (_("Encoded value extends past end of section\n")); |
| * pdata = end; |
| return 0; |
| } |
| |
| /* PR 17512: file: 002-829853-0.004. */ |
| if (size > 8) |
| { |
| warn (_("Encoded size of %d is too large to read\n"), size); |
| * pdata = end; |
| return 0; |
| } |
| |
| /* PR 17512: file: 1085-5603-0.004. */ |
| if (size == 0) |
| { |
| warn (_("Encoded size of 0 is too small to read\n")); |
| * pdata = end; |
| return 0; |
| } |
| |
| if (encoding & DW_EH_PE_signed) |
| val = byte_get_signed (data, size); |
| else |
| val = byte_get (data, size); |
| |
| if ((encoding & 0x70) == DW_EH_PE_pcrel) |
| val += section->address + (data - section->start); |
| |
| * pdata = data + size; |
| return val; |
| } |
| |
| #if defined HAVE_LONG_LONG && SIZEOF_LONG_LONG > SIZEOF_LONG |
| # ifndef __MINGW32__ |
| # define DWARF_VMA_FMT "ll" |
| # define DWARF_VMA_FMT_LONG "%16.16llx" |
| # else |
| # define DWARF_VMA_FMT "I64" |
| # define DWARF_VMA_FMT_LONG "%016I64x" |
| # endif |
| #else |
| # define DWARF_VMA_FMT "l" |
| # define DWARF_VMA_FMT_LONG "%16.16lx" |
| #endif |
| |
| /* Convert a dwarf vma value into a string. Returns a pointer to a static |
| buffer containing the converted VALUE. The value is converted according |
| to the printf formating character FMTCH. If NUM_BYTES is non-zero then |
| it specifies the maximum number of bytes to be displayed in the converted |
| value and FMTCH is ignored - hex is always used. */ |
| |
| static const char * |
| dwarf_vmatoa_1 (const char *fmtch, dwarf_vma value, unsigned num_bytes) |
| { |
| /* As dwarf_vmatoa is used more then once in a printf call |
| for output, we are cycling through an fixed array of pointers |
| for return address. */ |
| static int buf_pos = 0; |
| static struct dwarf_vmatoa_buf |
| { |
| char place[64]; |
| } buf[16]; |
| char *ret; |
| |
| ret = buf[buf_pos++].place; |
| buf_pos %= ARRAY_SIZE (buf); |
| |
| if (num_bytes) |
| { |
| /* Printf does not have a way of specifying a maximum field width for an |
| integer value, so we print the full value into a buffer and then select |
| the precision we need. */ |
| snprintf (ret, sizeof (buf[0].place), DWARF_VMA_FMT_LONG, value); |
| if (num_bytes > 8) |
| num_bytes = 8; |
| return ret + (16 - 2 * num_bytes); |
| } |
| else |
| { |
| char fmt[32]; |
| |
| sprintf (fmt, "%%%s%s", DWARF_VMA_FMT, fmtch); |
| snprintf (ret, sizeof (buf[0].place), fmt, value); |
| return ret; |
| } |
| } |
| |
| static inline const char * |
| dwarf_vmatoa (const char * fmtch, dwarf_vma value) |
| { |
| return dwarf_vmatoa_1 (fmtch, value, 0); |
| } |
| |
| /* Print a dwarf_vma value (typically an address, offset or length) in |
| hexadecimal format, followed by a space. The length of the VALUE (and |
| hence the precision displayed) is determined by the NUM_BYTES parameter. */ |
| |
| static void |
| print_dwarf_vma (dwarf_vma value, unsigned num_bytes) |
| { |
| printf ("%s ", dwarf_vmatoa_1 (NULL, value, num_bytes)); |
| } |
| |
| /* Format a 64-bit value, given as two 32-bit values, in hex. |
| For reentrancy, this uses a buffer provided by the caller. */ |
| |
| static const char * |
| dwarf_vmatoa64 (dwarf_vma hvalue, dwarf_vma lvalue, char *buf, |
| unsigned int buf_len) |
| { |
| int len = 0; |
| |
| if (hvalue == 0) |
| snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", lvalue); |
| else |
| { |
| len = snprintf (buf, buf_len, "%" DWARF_VMA_FMT "x", hvalue); |
| snprintf (buf + len, buf_len - len, |
| "%08" DWARF_VMA_FMT "x", lvalue); |
| } |
| |
| return buf; |
| } |
| |
| /* Read in a LEB128 encoded value starting at address DATA. |
| If SIGN is true, return a signed LEB128 value. |
| If LENGTH_RETURN is not NULL, return in it the number of bytes read. |
| No bytes will be read at address END or beyond. */ |
| |
| dwarf_vma |
| read_leb128 (unsigned char *data, |
| unsigned int *length_return, |
| bfd_boolean sign, |
| const unsigned char * const end) |
| { |
| dwarf_vma result = 0; |
| unsigned int num_read = 0; |
| unsigned int shift = 0; |
| unsigned char byte = 0; |
| |
| while (data < end) |
| { |
| byte = *data++; |
| num_read++; |
| |
| result |= ((dwarf_vma) (byte & 0x7f)) << shift; |
| |
| shift += 7; |
| if ((byte & 0x80) == 0) |
| break; |
| |
| /* PR 17512: file: 0ca183b8. |
| FIXME: Should we signal this error somehow ? */ |
| if (shift >= sizeof (result) * 8) |
| break; |
| } |
| |
| if (length_return != NULL) |
| *length_return = num_read; |
| |
| if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40)) |
| result |= -((dwarf_vma) 1 << shift); |
| |
| return result; |
| } |
| |
| /* Create a signed version to avoid painful typecasts. */ |
| static inline dwarf_signed_vma |
| read_sleb128 (unsigned char * data, |
| unsigned int * length_return, |
| const unsigned char * const end) |
| { |
| return (dwarf_signed_vma) read_leb128 (data, length_return, TRUE, end); |
| } |
| |
| static inline dwarf_vma |
| read_uleb128 (unsigned char * data, |
| unsigned int * length_return, |
| const unsigned char * const end) |
| { |
| return read_leb128 (data, length_return, FALSE, end); |
| } |
| |
| #define SAFE_BYTE_GET(VAL, PTR, AMOUNT, END) \ |
| do \ |
| { \ |
| unsigned int amount = (AMOUNT); \ |
| if (sizeof (VAL) < amount) \ |
| { \ |
| error (_("internal error: attempt to read %d bytes of data in to %d sized variable"),\ |
| amount, (int) sizeof (VAL)); \ |
| amount = sizeof (VAL); \ |
| } \ |
| if (((PTR) + amount) >= (END)) \ |
| { \ |
| if ((PTR) < (END)) \ |
| amount = (END) - (PTR); \ |
| else \ |
| amount = 0; \ |
| } \ |
| if (amount == 0 || amount > 8) \ |
| VAL = 0; \ |
| else \ |
| VAL = byte_get ((PTR), amount); \ |
| } \ |
| while (0) |
| |
| #define SAFE_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \ |
| do \ |
| { \ |
| SAFE_BYTE_GET (VAL, PTR, AMOUNT, END); \ |
| PTR += AMOUNT; \ |
| } \ |
| while (0) |
| |
| #define SAFE_SIGNED_BYTE_GET(VAL, PTR, AMOUNT, END) \ |
| do \ |
| { \ |
| unsigned int amount = (AMOUNT); \ |
| if (((PTR) + amount) >= (END)) \ |
| { \ |
| if ((PTR) < (END)) \ |
| amount = (END) - (PTR); \ |
| else \ |
| amount = 0; \ |
| } \ |
| if (amount) \ |
| VAL = byte_get_signed ((PTR), amount); \ |
| else \ |
| VAL = 0; \ |
| } \ |
| while (0) |
| |
| #define SAFE_SIGNED_BYTE_GET_AND_INC(VAL, PTR, AMOUNT, END) \ |
| do \ |
| { \ |
| SAFE_SIGNED_BYTE_GET (VAL, PTR, AMOUNT, END); \ |
| PTR += AMOUNT; \ |
| } \ |
| while (0) |
| |
| #define SAFE_BYTE_GET64(PTR, HIGH, LOW, END) \ |
| do \ |
| { \ |
| if (((PTR) + 8) <= (END)) \ |
| { \ |
| byte_get_64 ((PTR), (HIGH), (LOW)); \ |
| } \ |
| else \ |
| { \ |
| * (LOW) = * (HIGH) = 0; \ |
| } \ |
| } \ |
| while (0) |
| |
| typedef struct State_Machine_Registers |
| { |
| dwarf_vma address; |
| unsigned int file; |
| unsigned int line; |
| unsigned int column; |
| int is_stmt; |
| int basic_block; |
| unsigned char op_index; |
| unsigned char end_sequence; |
| /* This variable hold the number of the last entry seen |
| in the File Table. */ |
| unsigned int last_file_entry; |
| } SMR; |
| |
| static SMR state_machine_regs; |
| |
| static void |
| reset_state_machine (int is_stmt) |
| { |
| state_machine_regs.address = 0; |
| state_machine_regs.op_index = 0; |
| state_machine_regs.file = 1; |
| state_machine_regs.line = 1; |
| state_machine_regs.column = 0; |
| state_machine_regs.is_stmt = is_stmt; |
| state_machine_regs.basic_block = 0; |
| state_machine_regs.end_sequence = 0; |
| state_machine_regs.last_file_entry = 0; |
| } |
| |
| /* Handled an extend line op. |
| Returns the number of bytes read. */ |
| |
| static int |
| process_extended_line_op (unsigned char * data, |
| int is_stmt, |
| unsigned char * end) |
| { |
| unsigned char op_code; |
| unsigned int bytes_read; |
| unsigned int len; |
| unsigned char *name; |
| unsigned char *orig_data = data; |
| dwarf_vma adr; |
| |
| len = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| |
| if (len == 0 || data == end || len > (uintptr_t) (end - data)) |
| { |
| warn (_("Badly formed extended line op encountered!\n")); |
| return bytes_read; |
| } |
| |
| len += bytes_read; |
| op_code = *data++; |
| |
| printf (_(" Extended opcode %d: "), op_code); |
| |
| switch (op_code) |
| { |
| case DW_LNE_end_sequence: |
| printf (_("End of Sequence\n\n")); |
| reset_state_machine (is_stmt); |
| break; |
| |
| case DW_LNE_set_address: |
| /* PR 17512: file: 002-100480-0.004. */ |
| if (len - bytes_read - 1 > 8) |
| { |
| warn (_("Length (%d) of DW_LNE_set_address op is too long\n"), |
| len - bytes_read - 1); |
| adr = 0; |
| } |
| else |
| SAFE_BYTE_GET (adr, data, len - bytes_read - 1, end); |
| printf (_("set Address to 0x%s\n"), dwarf_vmatoa ("x", adr)); |
| state_machine_regs.address = adr; |
| state_machine_regs.op_index = 0; |
| break; |
| |
| case DW_LNE_define_file: |
| printf (_("define new File Table entry\n")); |
| printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| printf (" %d\t", ++state_machine_regs.last_file_entry); |
| |
| name = data; |
| data += strnlen ((char *) data, end - data) + 1; |
| printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| data += bytes_read; |
| printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| data += bytes_read; |
| printf ("%s\t", dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| data += bytes_read; |
| printf ("%s\n\n", name); |
| |
| if (((unsigned int) (data - orig_data) != len) || data == end) |
| warn (_("DW_LNE_define_file: Bad opcode length\n")); |
| break; |
| |
| case DW_LNE_set_discriminator: |
| printf (_("set Discriminator to %s\n"), |
| dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| break; |
| |
| /* HP extensions. */ |
| case DW_LNE_HP_negate_is_UV_update: |
| printf ("DW_LNE_HP_negate_is_UV_update\n"); |
| break; |
| case DW_LNE_HP_push_context: |
| printf ("DW_LNE_HP_push_context\n"); |
| break; |
| case DW_LNE_HP_pop_context: |
| printf ("DW_LNE_HP_pop_context\n"); |
| break; |
| case DW_LNE_HP_set_file_line_column: |
| printf ("DW_LNE_HP_set_file_line_column\n"); |
| break; |
| case DW_LNE_HP_set_routine_name: |
| printf ("DW_LNE_HP_set_routine_name\n"); |
| break; |
| case DW_LNE_HP_set_sequence: |
| printf ("DW_LNE_HP_set_sequence\n"); |
| break; |
| case DW_LNE_HP_negate_post_semantics: |
| printf ("DW_LNE_HP_negate_post_semantics\n"); |
| break; |
| case DW_LNE_HP_negate_function_exit: |
| printf ("DW_LNE_HP_negate_function_exit\n"); |
| break; |
| case DW_LNE_HP_negate_front_end_logical: |
| printf ("DW_LNE_HP_negate_front_end_logical\n"); |
| break; |
| case DW_LNE_HP_define_proc: |
| printf ("DW_LNE_HP_define_proc\n"); |
| break; |
| case DW_LNE_HP_source_file_correlation: |
| { |
| unsigned char *edata = data + len - bytes_read - 1; |
| |
| printf ("DW_LNE_HP_source_file_correlation\n"); |
| |
| while (data < edata) |
| { |
| unsigned int opc; |
| |
| opc = read_uleb128 (data, & bytes_read, edata); |
| data += bytes_read; |
| |
| switch (opc) |
| { |
| case DW_LNE_HP_SFC_formfeed: |
| printf (" DW_LNE_HP_SFC_formfeed\n"); |
| break; |
| case DW_LNE_HP_SFC_set_listing_line: |
| printf (" DW_LNE_HP_SFC_set_listing_line (%s)\n", |
| dwarf_vmatoa ("u", |
| read_uleb128 (data, & bytes_read, edata))); |
| data += bytes_read; |
| break; |
| case DW_LNE_HP_SFC_associate: |
| printf (" DW_LNE_HP_SFC_associate "); |
| printf ("(%s", |
| dwarf_vmatoa ("u", |
| read_uleb128 (data, & bytes_read, edata))); |
| data += bytes_read; |
| printf (",%s", |
| dwarf_vmatoa ("u", |
| read_uleb128 (data, & bytes_read, edata))); |
| data += bytes_read; |
| printf (",%s)\n", |
| dwarf_vmatoa ("u", |
| read_uleb128 (data, & bytes_read, edata))); |
| data += bytes_read; |
| break; |
| default: |
| printf (_(" UNKNOWN DW_LNE_HP_SFC opcode (%u)\n"), opc); |
| data = edata; |
| break; |
| } |
| } |
| } |
| break; |
| |
| default: |
| { |
| unsigned int rlen = len - bytes_read - 1; |
| |
| if (op_code >= DW_LNE_lo_user |
| /* The test against DW_LNW_hi_user is redundant due to |
| the limited range of the unsigned char data type used |
| for op_code. */ |
| /*&& op_code <= DW_LNE_hi_user*/) |
| printf (_("user defined: ")); |
| else |
| printf (_("UNKNOWN: ")); |
| printf (_("length %d ["), rlen); |
| for (; rlen; rlen--) |
| printf (" %02x", *data++); |
| printf ("]\n"); |
| } |
| break; |
| } |
| |
| return len; |
| } |
| |
| static const unsigned char * |
| fetch_indirect_string (dwarf_vma offset) |
| { |
| struct dwarf_section *section = &debug_displays [str].section; |
| |
| if (section->start == NULL) |
| return (const unsigned char *) _("<no .debug_str section>"); |
| |
| if (offset > section->size) |
| { |
| warn (_("DW_FORM_strp offset too big: %s\n"), |
| dwarf_vmatoa ("x", offset)); |
| return (const unsigned char *) _("<offset is too big>"); |
| } |
| |
| return (const unsigned char *) section->start + offset; |
| } |
| |
| static const char * |
| fetch_indexed_string (dwarf_vma idx, struct cu_tu_set *this_set, |
| dwarf_vma offset_size, int dwo) |
| { |
| enum dwarf_section_display_enum str_sec_idx = dwo ? str_dwo : str; |
| enum dwarf_section_display_enum idx_sec_idx = dwo ? str_index_dwo : str_index; |
| struct dwarf_section *index_section = &debug_displays [idx_sec_idx].section; |
| struct dwarf_section *str_section = &debug_displays [str_sec_idx].section; |
| dwarf_vma index_offset = idx * offset_size; |
| dwarf_vma str_offset; |
| |
| if (index_section->start == NULL) |
| return (dwo ? _("<no .debug_str_offsets.dwo section>") |
| : _("<no .debug_str_offsets section>")); |
| |
| if (this_set != NULL) |
| index_offset += this_set->section_offsets [DW_SECT_STR_OFFSETS]; |
| if (index_offset > index_section->size) |
| { |
| warn (_("DW_FORM_GNU_str_index offset too big: %s\n"), |
| dwarf_vmatoa ("x", index_offset)); |
| return _("<index offset is too big>"); |
| } |
| |
| if (str_section->start == NULL) |
| return (dwo ? _("<no .debug_str.dwo section>") |
| : _("<no .debug_str section>")); |
| |
| str_offset = byte_get (index_section->start + index_offset, offset_size); |
| str_offset -= str_section->address; |
| if (str_offset > str_section->size) |
| { |
| warn (_("DW_FORM_GNU_str_index indirect offset too big: %s\n"), |
| dwarf_vmatoa ("x", str_offset)); |
| return _("<indirect index offset is too big>"); |
| } |
| |
| return (const char *) str_section->start + str_offset; |
| } |
| |
| static const char * |
| fetch_indexed_value (dwarf_vma offset, dwarf_vma bytes) |
| { |
| struct dwarf_section *section = &debug_displays [debug_addr].section; |
| |
| if (section->start == NULL) |
| return (_("<no .debug_addr section>")); |
| |
| if (offset + bytes > section->size) |
| { |
| warn (_("Offset into section %s too big: %s\n"), |
| section->name, dwarf_vmatoa ("x", offset)); |
| return "<offset too big>"; |
| } |
| |
| return dwarf_vmatoa ("x", byte_get (section->start + offset, bytes)); |
| } |
| |
| |
| /* FIXME: There are better and more efficient ways to handle |
| these structures. For now though, I just want something that |
| is simple to implement. */ |
| typedef struct abbrev_attr |
| { |
| unsigned long attribute; |
| unsigned long form; |
| struct abbrev_attr *next; |
| } |
| abbrev_attr; |
| |
| typedef struct abbrev_entry |
| { |
| unsigned long entry; |
| unsigned long tag; |
| int children; |
| struct abbrev_attr *first_attr; |
| struct abbrev_attr *last_attr; |
| struct abbrev_entry *next; |
| } |
| abbrev_entry; |
| |
| static abbrev_entry *first_abbrev = NULL; |
| static abbrev_entry *last_abbrev = NULL; |
| |
| static void |
| free_abbrevs (void) |
| { |
| abbrev_entry *abbrv; |
| |
| for (abbrv = first_abbrev; abbrv;) |
| { |
| abbrev_entry *next_abbrev = abbrv->next; |
| abbrev_attr *attr; |
| |
| for (attr = abbrv->first_attr; attr;) |
| { |
| abbrev_attr *next_attr = attr->next; |
| |
| free (attr); |
| attr = next_attr; |
| } |
| |
| free (abbrv); |
| abbrv = next_abbrev; |
| } |
| |
| last_abbrev = first_abbrev = NULL; |
| } |
| |
| static void |
| add_abbrev (unsigned long number, unsigned long tag, int children) |
| { |
| abbrev_entry *entry; |
| |
| entry = (abbrev_entry *) malloc (sizeof (*entry)); |
| if (entry == NULL) |
| /* ugg */ |
| return; |
| |
| entry->entry = number; |
| entry->tag = tag; |
| entry->children = children; |
| entry->first_attr = NULL; |
| entry->last_attr = NULL; |
| entry->next = NULL; |
| |
| if (first_abbrev == NULL) |
| first_abbrev = entry; |
| else |
| last_abbrev->next = entry; |
| |
| last_abbrev = entry; |
| } |
| |
| static void |
| add_abbrev_attr (unsigned long attribute, unsigned long form) |
| { |
| abbrev_attr *attr; |
| |
| attr = (abbrev_attr *) malloc (sizeof (*attr)); |
| if (attr == NULL) |
| /* ugg */ |
| return; |
| |
| attr->attribute = attribute; |
| attr->form = form; |
| attr->next = NULL; |
| |
| if (last_abbrev->first_attr == NULL) |
| last_abbrev->first_attr = attr; |
| else |
| last_abbrev->last_attr->next = attr; |
| |
| last_abbrev->last_attr = attr; |
| } |
| |
| /* Processes the (partial) contents of a .debug_abbrev section. |
| Returns NULL if the end of the section was encountered. |
| Returns the address after the last byte read if the end of |
| an abbreviation set was found. */ |
| |
| static unsigned char * |
| process_abbrev_section (unsigned char *start, unsigned char *end) |
| { |
| if (first_abbrev != NULL) |
| return NULL; |
| |
| while (start < end) |
| { |
| unsigned int bytes_read; |
| unsigned long entry; |
| unsigned long tag; |
| unsigned long attribute; |
| int children; |
| |
| entry = read_uleb128 (start, & bytes_read, end); |
| start += bytes_read; |
| |
| /* A single zero is supposed to end the section according |
| to the standard. If there's more, then signal that to |
| the caller. */ |
| if (start == end) |
| return NULL; |
| if (entry == 0) |
| return start; |
| |
| tag = read_uleb128 (start, & bytes_read, end); |
| start += bytes_read; |
| if (start == end) |
| return NULL; |
| |
| children = *start++; |
| |
| add_abbrev (entry, tag, children); |
| |
| do |
| { |
| unsigned long form; |
| |
| attribute = read_uleb128 (start, & bytes_read, end); |
| start += bytes_read; |
| if (start == end) |
| break; |
| |
| form = read_uleb128 (start, & bytes_read, end); |
| start += bytes_read; |
| if (start == end) |
| break; |
| |
| add_abbrev_attr (attribute, form); |
| } |
| while (attribute != 0); |
| } |
| |
| /* Report the missing single zero which ends the section. */ |
| error (_(".debug_abbrev section not zero terminated\n")); |
| |
| return NULL; |
| } |
| |
| static const char * |
| get_TAG_name (unsigned long tag) |
| { |
| const char *name = get_DW_TAG_name ((unsigned int)tag); |
| |
| if (name == NULL) |
| { |
| static char buffer[100]; |
| |
| snprintf (buffer, sizeof (buffer), _("Unknown TAG value: %lx"), tag); |
| return buffer; |
| } |
| |
| return name; |
| } |
| |
| static const char * |
| get_FORM_name (unsigned long form) |
| { |
| const char *name; |
| |
| if (form == 0) |
| return "DW_FORM value: 0"; |
| |
| name = get_DW_FORM_name (form); |
| if (name == NULL) |
| { |
| static char buffer[100]; |
| |
| snprintf (buffer, sizeof (buffer), _("Unknown FORM value: %lx"), form); |
| return buffer; |
| } |
| |
| return name; |
| } |
| |
| static unsigned char * |
| display_block (unsigned char *data, |
| dwarf_vma length, |
| const unsigned char * const end) |
| { |
| dwarf_vma maxlen; |
| |
| printf (_(" %s byte block: "), dwarf_vmatoa ("u", length)); |
| if (data > end) |
| return (unsigned char *) end; |
| |
| maxlen = (dwarf_vma) (end - data); |
| length = length > maxlen ? maxlen : length; |
| |
| while (length --) |
| printf ("%lx ", (unsigned long) byte_get (data++, 1)); |
| |
| return data; |
| } |
| |
| static int |
| decode_location_expression (unsigned char * data, |
| unsigned int pointer_size, |
| unsigned int offset_size, |
| int dwarf_version, |
| dwarf_vma length, |
| dwarf_vma cu_offset, |
| struct dwarf_section * section) |
| { |
| unsigned op; |
| unsigned int bytes_read; |
| dwarf_vma uvalue; |
| dwarf_signed_vma svalue; |
| unsigned char *end = data + length; |
| int need_frame_base = 0; |
| |
| while (data < end) |
| { |
| op = *data++; |
| |
| switch (op) |
| { |
| case DW_OP_addr: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| printf ("DW_OP_addr: %s", dwarf_vmatoa ("x", uvalue)); |
| break; |
| case DW_OP_deref: |
| printf ("DW_OP_deref"); |
| break; |
| case DW_OP_const1u: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| printf ("DW_OP_const1u: %lu", (unsigned long) uvalue); |
| break; |
| case DW_OP_const1s: |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 1, end); |
| printf ("DW_OP_const1s: %ld", (long) svalue); |
| break; |
| case DW_OP_const2u: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); |
| printf ("DW_OP_const2u: %lu", (unsigned long) uvalue); |
| break; |
| case DW_OP_const2s: |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| printf ("DW_OP_const2s: %ld", (long) svalue); |
| break; |
| case DW_OP_const4u: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| printf ("DW_OP_const4u: %lu", (unsigned long) uvalue); |
| break; |
| case DW_OP_const4s: |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| printf ("DW_OP_const4s: %ld", (long) svalue); |
| break; |
| case DW_OP_const8u: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| printf ("DW_OP_const8u: %lu ", (unsigned long) uvalue); |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| printf ("%lu", (unsigned long) uvalue); |
| break; |
| case DW_OP_const8s: |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| printf ("DW_OP_const8s: %ld ", (long) svalue); |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| printf ("%ld", (long) svalue); |
| break; |
| case DW_OP_constu: |
| printf ("DW_OP_constu: %s", |
| dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| break; |
| case DW_OP_consts: |
| printf ("DW_OP_consts: %s", |
| dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| break; |
| case DW_OP_dup: |
| printf ("DW_OP_dup"); |
| break; |
| case DW_OP_drop: |
| printf ("DW_OP_drop"); |
| break; |
| case DW_OP_over: |
| printf ("DW_OP_over"); |
| break; |
| case DW_OP_pick: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| printf ("DW_OP_pick: %ld", (unsigned long) uvalue); |
| break; |
| case DW_OP_swap: |
| printf ("DW_OP_swap"); |
| break; |
| case DW_OP_rot: |
| printf ("DW_OP_rot"); |
| break; |
| case DW_OP_xderef: |
| printf ("DW_OP_xderef"); |
| break; |
| case DW_OP_abs: |
| printf ("DW_OP_abs"); |
| break; |
| case DW_OP_and: |
| printf ("DW_OP_and"); |
| break; |
| case DW_OP_div: |
| printf ("DW_OP_div"); |
| break; |
| case DW_OP_minus: |
| printf ("DW_OP_minus"); |
| break; |
| case DW_OP_mod: |
| printf ("DW_OP_mod"); |
| break; |
| case DW_OP_mul: |
| printf ("DW_OP_mul"); |
| break; |
| case DW_OP_neg: |
| printf ("DW_OP_neg"); |
| break; |
| case DW_OP_not: |
| printf ("DW_OP_not"); |
| break; |
| case DW_OP_or: |
| printf ("DW_OP_or"); |
| break; |
| case DW_OP_plus: |
| printf ("DW_OP_plus"); |
| break; |
| case DW_OP_plus_uconst: |
| printf ("DW_OP_plus_uconst: %s", |
| dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| break; |
| case DW_OP_shl: |
| printf ("DW_OP_shl"); |
| break; |
| case DW_OP_shr: |
| printf ("DW_OP_shr"); |
| break; |
| case DW_OP_shra: |
| printf ("DW_OP_shra"); |
| break; |
| case DW_OP_xor: |
| printf ("DW_OP_xor"); |
| break; |
| case DW_OP_bra: |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| printf ("DW_OP_bra: %ld", (long) svalue); |
| break; |
| case DW_OP_eq: |
| printf ("DW_OP_eq"); |
| break; |
| case DW_OP_ge: |
| printf ("DW_OP_ge"); |
| break; |
| case DW_OP_gt: |
| printf ("DW_OP_gt"); |
| break; |
| case DW_OP_le: |
| printf ("DW_OP_le"); |
| break; |
| case DW_OP_lt: |
| printf ("DW_OP_lt"); |
| break; |
| case DW_OP_ne: |
| printf ("DW_OP_ne"); |
| break; |
| case DW_OP_skip: |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| printf ("DW_OP_skip: %ld", (long) svalue); |
| break; |
| |
| case DW_OP_lit0: |
| case DW_OP_lit1: |
| case DW_OP_lit2: |
| case DW_OP_lit3: |
| case DW_OP_lit4: |
| case DW_OP_lit5: |
| case DW_OP_lit6: |
| case DW_OP_lit7: |
| case DW_OP_lit8: |
| case DW_OP_lit9: |
| case DW_OP_lit10: |
| case DW_OP_lit11: |
| case DW_OP_lit12: |
| case DW_OP_lit13: |
| case DW_OP_lit14: |
| case DW_OP_lit15: |
| case DW_OP_lit16: |
| case DW_OP_lit17: |
| case DW_OP_lit18: |
| case DW_OP_lit19: |
| case DW_OP_lit20: |
| case DW_OP_lit21: |
| case DW_OP_lit22: |
| case DW_OP_lit23: |
| case DW_OP_lit24: |
| case DW_OP_lit25: |
| case DW_OP_lit26: |
| case DW_OP_lit27: |
| case DW_OP_lit28: |
| case DW_OP_lit29: |
| case DW_OP_lit30: |
| case DW_OP_lit31: |
| printf ("DW_OP_lit%d", op - DW_OP_lit0); |
| break; |
| |
| case DW_OP_reg0: |
| case DW_OP_reg1: |
| case DW_OP_reg2: |
| case DW_OP_reg3: |
| case DW_OP_reg4: |
| case DW_OP_reg5: |
| case DW_OP_reg6: |
| case DW_OP_reg7: |
| case DW_OP_reg8: |
| case DW_OP_reg9: |
| case DW_OP_reg10: |
| case DW_OP_reg11: |
| case DW_OP_reg12: |
| case DW_OP_reg13: |
| case DW_OP_reg14: |
| case DW_OP_reg15: |
| case DW_OP_reg16: |
| case DW_OP_reg17: |
| case DW_OP_reg18: |
| case DW_OP_reg19: |
| case DW_OP_reg20: |
| case DW_OP_reg21: |
| case DW_OP_reg22: |
| case DW_OP_reg23: |
| case DW_OP_reg24: |
| case DW_OP_reg25: |
| case DW_OP_reg26: |
| case DW_OP_reg27: |
| case DW_OP_reg28: |
| case DW_OP_reg29: |
| case DW_OP_reg30: |
| case DW_OP_reg31: |
| printf ("DW_OP_reg%d (%s)", op - DW_OP_reg0, |
| regname (op - DW_OP_reg0, 1)); |
| break; |
| |
| case DW_OP_breg0: |
| case DW_OP_breg1: |
| case DW_OP_breg2: |
| case DW_OP_breg3: |
| case DW_OP_breg4: |
| case DW_OP_breg5: |
| case DW_OP_breg6: |
| case DW_OP_breg7: |
| case DW_OP_breg8: |
| case DW_OP_breg9: |
| case DW_OP_breg10: |
| case DW_OP_breg11: |
| case DW_OP_breg12: |
| case DW_OP_breg13: |
| case DW_OP_breg14: |
| case DW_OP_breg15: |
| case DW_OP_breg16: |
| case DW_OP_breg17: |
| case DW_OP_breg18: |
| case DW_OP_breg19: |
| case DW_OP_breg20: |
| case DW_OP_breg21: |
| case DW_OP_breg22: |
| case DW_OP_breg23: |
| case DW_OP_breg24: |
| case DW_OP_breg25: |
| case DW_OP_breg26: |
| case DW_OP_breg27: |
| case DW_OP_breg28: |
| case DW_OP_breg29: |
| case DW_OP_breg30: |
| case DW_OP_breg31: |
| printf ("DW_OP_breg%d (%s): %s", |
| op - DW_OP_breg0, |
| regname (op - DW_OP_breg0, 1), |
| dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| break; |
| |
| case DW_OP_regx: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf ("DW_OP_regx: %s (%s)", |
| dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); |
| break; |
| case DW_OP_fbreg: |
| need_frame_base = 1; |
| printf ("DW_OP_fbreg: %s", |
| dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| break; |
| case DW_OP_bregx: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf ("DW_OP_bregx: %s (%s) %s", |
| dwarf_vmatoa ("u", uvalue), regname (uvalue, 1), |
| dwarf_vmatoa ("d", read_sleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| break; |
| case DW_OP_piece: |
| printf ("DW_OP_piece: %s", |
| dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| break; |
| case DW_OP_deref_size: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| printf ("DW_OP_deref_size: %ld", (long) uvalue); |
| break; |
| case DW_OP_xderef_size: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| printf ("DW_OP_xderef_size: %ld", (long) uvalue); |
| break; |
| case DW_OP_nop: |
| printf ("DW_OP_nop"); |
| break; |
| |
| /* DWARF 3 extensions. */ |
| case DW_OP_push_object_address: |
| printf ("DW_OP_push_object_address"); |
| break; |
| case DW_OP_call2: |
| /* XXX: Strictly speaking for 64-bit DWARF3 files |
| this ought to be an 8-byte wide computation. */ |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 2, end); |
| printf ("DW_OP_call2: <0x%s>", |
| dwarf_vmatoa ("x", svalue + cu_offset)); |
| break; |
| case DW_OP_call4: |
| /* XXX: Strictly speaking for 64-bit DWARF3 files |
| this ought to be an 8-byte wide computation. */ |
| SAFE_SIGNED_BYTE_GET_AND_INC (svalue, data, 4, end); |
| printf ("DW_OP_call4: <0x%s>", |
| dwarf_vmatoa ("x", svalue + cu_offset)); |
| break; |
| case DW_OP_call_ref: |
| /* XXX: Strictly speaking for 64-bit DWARF3 files |
| this ought to be an 8-byte wide computation. */ |
| if (dwarf_version == -1) |
| { |
| printf (_("(DW_OP_call_ref in frame info)")); |
| /* No way to tell where the next op is, so just bail. */ |
| return need_frame_base; |
| } |
| if (dwarf_version == 2) |
| { |
| SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| } |
| else |
| { |
| SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| } |
| printf ("DW_OP_call_ref: <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| break; |
| case DW_OP_form_tls_address: |
| printf ("DW_OP_form_tls_address"); |
| break; |
| case DW_OP_call_frame_cfa: |
| printf ("DW_OP_call_frame_cfa"); |
| break; |
| case DW_OP_bit_piece: |
| printf ("DW_OP_bit_piece: "); |
| printf (_("size: %s "), |
| dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| printf (_("offset: %s "), |
| dwarf_vmatoa ("u", read_uleb128 (data, &bytes_read, end))); |
| data += bytes_read; |
| break; |
| |
| /* DWARF 4 extensions. */ |
| case DW_OP_stack_value: |
| printf ("DW_OP_stack_value"); |
| break; |
| |
| case DW_OP_implicit_value: |
| printf ("DW_OP_implicit_value"); |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| data = display_block (data, uvalue, end); |
| break; |
| |
| /* GNU extensions. */ |
| case DW_OP_GNU_push_tls_address: |
| printf (_("DW_OP_GNU_push_tls_address or DW_OP_HP_unknown")); |
| break; |
| case DW_OP_GNU_uninit: |
| printf ("DW_OP_GNU_uninit"); |
| /* FIXME: Is there data associated with this OP ? */ |
| break; |
| case DW_OP_GNU_encoded_addr: |
| { |
| int encoding = 0; |
| dwarf_vma addr; |
| |
| if (data < end) |
| encoding = *data++; |
| addr = get_encoded_value (&data, encoding, section, end); |
| |
| printf ("DW_OP_GNU_encoded_addr: fmt:%02x addr:", encoding); |
| print_dwarf_vma (addr, pointer_size); |
| } |
| break; |
| case DW_OP_GNU_implicit_pointer: |
| /* XXX: Strictly speaking for 64-bit DWARF3 files |
| this ought to be an 8-byte wide computation. */ |
| if (dwarf_version == -1) |
| { |
| printf (_("(DW_OP_GNU_implicit_pointer in frame info)")); |
| /* No way to tell where the next op is, so just bail. */ |
| return need_frame_base; |
| } |
| if (dwarf_version == 2) |
| { |
| SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| } |
| else |
| { |
| SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| } |
| printf ("DW_OP_GNU_implicit_pointer: <0x%s> %s", |
| dwarf_vmatoa ("x", uvalue), |
| dwarf_vmatoa ("d", read_sleb128 (data, |
| &bytes_read, end))); |
| data += bytes_read; |
| break; |
| case DW_OP_GNU_entry_value: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| /* PR 17531: file: 0cc9cd00. */ |
| if (uvalue > (dwarf_vma) (end - data)) |
| uvalue = end - data; |
| printf ("DW_OP_GNU_entry_value: ("); |
| if (decode_location_expression (data, pointer_size, offset_size, |
| dwarf_version, uvalue, |
| cu_offset, section)) |
| need_frame_base = 1; |
| putchar (')'); |
| data += uvalue; |
| if (data > end) |
| data = end; |
| break; |
| case DW_OP_GNU_const_type: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf ("DW_OP_GNU_const_type: <0x%s> ", |
| dwarf_vmatoa ("x", cu_offset + uvalue)); |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| data = display_block (data, uvalue, end); |
| break; |
| case DW_OP_GNU_regval_type: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf ("DW_OP_GNU_regval_type: %s (%s)", |
| dwarf_vmatoa ("u", uvalue), regname (uvalue, 1)); |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); |
| break; |
| case DW_OP_GNU_deref_type: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| printf ("DW_OP_GNU_deref_type: %ld", (long) uvalue); |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf (" <0x%s>", dwarf_vmatoa ("x", cu_offset + uvalue)); |
| break; |
| case DW_OP_GNU_convert: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf ("DW_OP_GNU_convert <0x%s>", |
| dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); |
| break; |
| case DW_OP_GNU_reinterpret: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf ("DW_OP_GNU_reinterpret <0x%s>", |
| dwarf_vmatoa ("x", uvalue ? cu_offset + uvalue : 0)); |
| break; |
| case DW_OP_GNU_parameter_ref: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| printf ("DW_OP_GNU_parameter_ref: <0x%s>", |
| dwarf_vmatoa ("x", cu_offset + uvalue)); |
| break; |
| case DW_OP_GNU_addr_index: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf ("DW_OP_GNU_addr_index <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| break; |
| case DW_OP_GNU_const_index: |
| uvalue = read_uleb128 (data, &bytes_read, end); |
| data += bytes_read; |
| printf ("DW_OP_GNU_const_index <0x%s>", dwarf_vmatoa ("x", uvalue)); |
| break; |
| |
| /* HP extensions. */ |
| case DW_OP_HP_is_value: |
| printf ("DW_OP_HP_is_value"); |
| /* FIXME: Is there data associated with this OP ? */ |
| break; |
| case DW_OP_HP_fltconst4: |
| printf ("DW_OP_HP_fltconst4"); |
| /* FIXME: Is there data associated with this OP ? */ |
| break; |
| case DW_OP_HP_fltconst8: |
| printf ("DW_OP_HP_fltconst8"); |
| /* FIXME: Is there data associated with this OP ? */ |
| break; |
| case DW_OP_HP_mod_range: |
| printf ("DW_OP_HP_mod_range"); |
| /* FIXME: Is there data associated with this OP ? */ |
| break; |
| case DW_OP_HP_unmod_range: |
| printf ("DW_OP_HP_unmod_range"); |
| /* FIXME: Is there data associated with this OP ? */ |
| break; |
| case DW_OP_HP_tls: |
| printf ("DW_OP_HP_tls"); |
| /* FIXME: Is there data associated with this OP ? */ |
| break; |
| |
| /* PGI (STMicroelectronics) extensions. */ |
| case DW_OP_PGI_omp_thread_num: |
| /* Pushes the thread number for the current thread as it would be |
| returned by the standard OpenMP library function: |
| omp_get_thread_num(). The "current thread" is the thread for |
| which the expression is being evaluated. */ |
| printf ("DW_OP_PGI_omp_thread_num"); |
| break; |
| |
| default: |
| if (op >= DW_OP_lo_user |
| && op <= DW_OP_hi_user) |
| printf (_("(User defined location op)")); |
| else |
| printf (_("(Unknown location op)")); |
| /* No way to tell where the next op is, so just bail. */ |
| return need_frame_base; |
| } |
| |
| /* Separate the ops. */ |
| if (data < end) |
| printf ("; "); |
| } |
| |
| return need_frame_base; |
| } |
| |
| /* Find the CU or TU set corresponding to the given CU_OFFSET. |
| This is used for DWARF package files. */ |
| |
| static struct cu_tu_set * |
| find_cu_tu_set_v2 (dwarf_vma cu_offset, int do_types) |
| { |
| struct cu_tu_set *p; |
| unsigned int nsets; |
| unsigned int dw_sect; |
| |
| if (do_types) |
| { |
| p = tu_sets; |
| nsets = tu_count; |
| dw_sect = DW_SECT_TYPES; |
| } |
| else |
| { |
| p = cu_sets; |
| nsets = cu_count; |
| dw_sect = DW_SECT_INFO; |
| } |
| while (nsets > 0) |
| { |
| if (p->section_offsets [dw_sect] == cu_offset) |
| return p; |
| p++; |
| nsets--; |
| } |
| return NULL; |
| } |
| |
| /* Add INC to HIGH_BITS:LOW_BITS. */ |
| static void |
| add64 (dwarf_vma * high_bits, dwarf_vma * low_bits, dwarf_vma inc) |
| { |
| dwarf_vma tmp = * low_bits; |
| |
| tmp += inc; |
| |
| /* FIXME: There is probably a better way of handling this: |
| |
| We need to cope with dwarf_vma being a 32-bit or 64-bit |
| type. Plus regardless of its size LOW_BITS is meant to |
| only hold 32-bits, so if there is overflow or wrap around |
| we must propagate into HIGH_BITS. */ |
| if (tmp < * low_bits) |
| { |
| ++ * high_bits; |
| } |
| else if (sizeof (tmp) > 8 |
| && (tmp >> 31) > 1) |
| { |
| ++ * high_bits; |
| tmp &= 0xFFFFFFFF; |
| } |
| |
| * low_bits = tmp; |
| } |
| |
| static unsigned char * |
| read_and_display_attr_value (unsigned long attribute, |
| unsigned long form, |
| unsigned char * data, |
| unsigned char * end, |
| dwarf_vma cu_offset, |
| dwarf_vma pointer_size, |
| dwarf_vma offset_size, |
| int dwarf_version, |
| debug_info * debug_info_p, |
| int do_loc, |
| struct dwarf_section * section, |
| struct cu_tu_set * this_set) |
| { |
| dwarf_vma uvalue = 0; |
| unsigned char *block_start = NULL; |
| unsigned char * orig_data = data; |
| unsigned int bytes_read; |
| |
| if (data > end || (data == end && form != DW_FORM_flag_present)) |
| { |
| warn (_("Corrupt attribute\n")); |
| return data; |
| } |
| |
| switch (form) |
| { |
| default: |
| break; |
| |
| case DW_FORM_ref_addr: |
| if (dwarf_version == 2) |
| SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| else if (dwarf_version == 3 || dwarf_version == 4) |
| SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| else |
| error (_("Internal error: DWARF version is not 2, 3 or 4.\n")); |
| |
| break; |
| |
| case DW_FORM_addr: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, pointer_size, end); |
| break; |
| |
| case DW_FORM_strp: |
| case DW_FORM_sec_offset: |
| case DW_FORM_GNU_ref_alt: |
| case DW_FORM_GNU_strp_alt: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, offset_size, end); |
| break; |
| |
| case DW_FORM_flag_present: |
| uvalue = 1; |
| break; |
| |
| case DW_FORM_ref1: |
| case DW_FORM_flag: |
| case DW_FORM_data1: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 1, end); |
| break; |
| |
| case DW_FORM_ref2: |
| case DW_FORM_data2: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 2, end); |
| break; |
| |
| case DW_FORM_ref4: |
| case DW_FORM_data4: |
| SAFE_BYTE_GET_AND_INC (uvalue, data, 4, end); |
| break; |
| |
| case DW_FORM_sdata: |
| uvalue = read_sleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| break; |
| |
| case DW_FORM_GNU_str_index: |
| uvalue = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| break; |
| |
| case DW_FORM_ref_udata: |
| case DW_FORM_udata: |
| uvalue = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| break; |
| |
| case DW_FORM_indirect: |
| form = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| if (!do_loc) |
| printf (" %s", get_FORM_name (form)); |
| return read_and_display_attr_value (attribute, form, data, end, |
| cu_offset, pointer_size, |
| offset_size, dwarf_version, |
| debug_info_p, do_loc, |
| section, this_set); |
| case DW_FORM_GNU_addr_index: |
| uvalue = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| break; |
| } |
| |
| switch (form) |
| { |
| case DW_FORM_ref_addr: |
| if (!do_loc) |
| printf (" <0x%s>", dwarf_vmatoa ("x",uvalue)); |
| break; |
| |
| case DW_FORM_GNU_ref_alt: |
| if (!do_loc) |
| printf (" <alt 0x%s>", dwarf_vmatoa ("x",uvalue)); |
| break; |
| |
| case DW_FORM_ref1: |
| case DW_FORM_ref2: |
| case DW_FORM_ref4: |
| case DW_FORM_ref_udata: |
| if (!do_loc) |
| printf (" <0x%s>", dwarf_vmatoa ("x", uvalue + cu_offset)); |
| break; |
| |
| case DW_FORM_data4: |
| case DW_FORM_addr: |
| case DW_FORM_sec_offset: |
| if (!do_loc) |
| printf (" 0x%s", dwarf_vmatoa ("x", uvalue)); |
| break; |
| |
| case DW_FORM_flag_present: |
| case DW_FORM_flag: |
| case DW_FORM_data1: |
| case DW_FORM_data2: |
| case DW_FORM_sdata: |
| case DW_FORM_udata: |
| if (!do_loc) |
| printf (" %s", dwarf_vmatoa ("d", uvalue)); |
| break; |
| |
| case DW_FORM_ref8: |
| case DW_FORM_data8: |
| if (!do_loc) |
| { |
| dwarf_vma high_bits; |
| dwarf_vma utmp; |
| char buf[64]; |
| |
| SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); |
| utmp = uvalue; |
| if (form == DW_FORM_ref8) |
| add64 (& high_bits, & utmp, cu_offset); |
| printf (" 0x%s", |
| dwarf_vmatoa64 (high_bits, utmp, buf, sizeof (buf))); |
| } |
| |
| if ((do_loc || do_debug_loc || do_debug_ranges) |
| && num_debug_info_entries == 0) |
| { |
| if (sizeof (uvalue) == 8) |
| SAFE_BYTE_GET (uvalue, data, 8, end); |
| else |
| error (_("DW_FORM_data8 is unsupported when sizeof (dwarf_vma) != 8\n")); |
| } |
| |
| data += 8; |
| break; |
| |
| case DW_FORM_string: |
| if (!do_loc) |
| printf (" %.*s", (int) (end - data), data); |
| data += strnlen ((char *) data, end - data) + 1; |
| break; |
| |
| case DW_FORM_block: |
| case DW_FORM_exprloc: |
| uvalue = read_uleb128 (data, & bytes_read, end); |
| block_start = data + bytes_read; |
| if (block_start >= end) |
| { |
| warn (_("Block ends prematurely\n")); |
| uvalue = 0; |
| block_start = end; |
| } |
| /* FIXME: Testing "(block_start + uvalue) < block_start" miscompiles with |
| gcc 4.8.3 running on an x86_64 host in 32-bit mode. So we pre-compute |
| block_start + uvalue here. */ |
| data = block_start + uvalue; |
| /* PR 17512: file: 008-103549-0.001:0.1. */ |
| if (block_start + uvalue > end || data < block_start) |
| { |
| warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| uvalue = end - block_start; |
| } |
| if (do_loc) |
| data = block_start + uvalue; |
| else |
| data = display_block (block_start, uvalue, end); |
| break; |
| |
| case DW_FORM_block1: |
| SAFE_BYTE_GET (uvalue, data, 1, end); |
| block_start = data + 1; |
| if (block_start >= end) |
| { |
| warn (_("Block ends prematurely\n")); |
| uvalue = 0; |
| block_start = end; |
| } |
| data = block_start + uvalue; |
| if (block_start + uvalue > end || data < block_start) |
| { |
| warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| uvalue = end - block_start; |
| } |
| if (do_loc) |
| data = block_start + uvalue; |
| else |
| data = display_block (block_start, uvalue, end); |
| break; |
| |
| case DW_FORM_block2: |
| SAFE_BYTE_GET (uvalue, data, 2, end); |
| block_start = data + 2; |
| if (block_start >= end) |
| { |
| warn (_("Block ends prematurely\n")); |
| uvalue = 0; |
| block_start = end; |
| } |
| data = block_start + uvalue; |
| if (block_start + uvalue > end || data < block_start) |
| { |
| warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| uvalue = end - block_start; |
| } |
| if (do_loc) |
| data = block_start + uvalue; |
| else |
| data = display_block (block_start, uvalue, end); |
| break; |
| |
| case DW_FORM_block4: |
| SAFE_BYTE_GET (uvalue, data, 4, end); |
| block_start = data + 4; |
| /* PR 17512: file: 3371-3907-0.004. */ |
| if (block_start >= end) |
| { |
| warn (_("Block ends prematurely\n")); |
| uvalue = 0; |
| block_start = end; |
| } |
| data = block_start + uvalue; |
| if (block_start + uvalue > end |
| /* PR 17531: file: 5b5f0592. */ |
| || data < block_start) |
| { |
| warn (_("Corrupt attribute block length: %lx\n"), (long) uvalue); |
| uvalue = end - block_start; |
| } |
| if (do_loc) |
| data = block_start + uvalue; |
| else |
| data = display_block (block_start, uvalue, end); |
| break; |
| |
| case DW_FORM_strp: |
| if (!do_loc) |
| printf (_(" (indirect string, offset: 0x%s): %s"), |
| dwarf_vmatoa ("x", uvalue), |
| fetch_indirect_string (uvalue)); |
| break; |
| |
| case DW_FORM_GNU_str_index: |
| if (!do_loc) |
| { |
| const char *suffix = strrchr (section->name, '.'); |
| int dwo = (suffix && strcmp (suffix, ".dwo") == 0) ? 1 : 0; |
| |
| printf (_(" (indexed string: 0x%s): %s"), |
| dwarf_vmatoa ("x", uvalue), |
| fetch_indexed_string (uvalue, this_set, offset_size, dwo)); |
| } |
| break; |
| |
| case DW_FORM_GNU_strp_alt: |
| if (!do_loc) |
| printf (_(" (alt indirect string, offset: 0x%s)"), |
| dwarf_vmatoa ("x", uvalue)); |
| break; |
| |
| case DW_FORM_indirect: |
| /* Handled above. */ |
| break; |
| |
| case DW_FORM_ref_sig8: |
| if (!do_loc) |
| { |
| dwarf_vma high_bits; |
| char buf[64]; |
| |
| SAFE_BYTE_GET64 (data, &high_bits, &uvalue, end); |
| printf (" signature: 0x%s", |
| dwarf_vmatoa64 (high_bits, uvalue, buf, sizeof (buf))); |
| } |
| data += 8; |
| break; |
| |
| case DW_FORM_GNU_addr_index: |
| if (!do_loc) |
| printf (_(" (addr_index: 0x%s): %s"), |
| dwarf_vmatoa ("x", uvalue), |
| fetch_indexed_value (uvalue * pointer_size, pointer_size)); |
| break; |
| |
| default: |
| warn (_("Unrecognized form: %lu\n"), form); |
| break; |
| } |
| |
| if ((do_loc || do_debug_loc || do_debug_ranges) |
| && num_debug_info_entries == 0 |
| && debug_info_p != NULL) |
| { |
| switch (attribute) |
| { |
| case DW_AT_frame_base: |
| have_frame_base = 1; |
| /* Fall through. */ |
| case DW_AT_location: |
| case DW_AT_string_length: |
| case DW_AT_return_addr: |
| case DW_AT_data_member_location: |
| case DW_AT_vtable_elem_location: |
| case DW_AT_segment: |
| case DW_AT_static_link: |
| case DW_AT_use_location: |
| case DW_AT_GNU_call_site_value: |
| case DW_AT_GNU_call_site_data_value: |
| case DW_AT_GNU_call_site_target: |
| case DW_AT_GNU_call_site_target_clobbered: |
| if ((dwarf_version < 4 |
| && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| || form == DW_FORM_sec_offset) |
| { |
| /* Process location list. */ |
| unsigned int lmax = debug_info_p->max_loc_offsets; |
| unsigned int num = debug_info_p->num_loc_offsets; |
| |
| if (lmax == 0 || num >= lmax) |
| { |
| lmax += 1024; |
| debug_info_p->loc_offsets = (dwarf_vma *) |
| xcrealloc (debug_info_p->loc_offsets, |
| lmax, sizeof (*debug_info_p->loc_offsets)); |
| debug_info_p->have_frame_base = (int *) |
| xcrealloc (debug_info_p->have_frame_base, |
| lmax, sizeof (*debug_info_p->have_frame_base)); |
| debug_info_p->max_loc_offsets = lmax; |
| } |
| if (this_set != NULL) |
| uvalue += this_set->section_offsets [DW_SECT_LOC]; |
| debug_info_p->loc_offsets [num] = uvalue; |
| debug_info_p->have_frame_base [num] = have_frame_base; |
| debug_info_p->num_loc_offsets++; |
| } |
| break; |
| |
| case DW_AT_low_pc: |
| if (need_base_address) |
| debug_info_p->base_address = uvalue; |
| break; |
| |
| case DW_AT_GNU_addr_base: |
| debug_info_p->addr_base = uvalue; |
| break; |
| |
| case DW_AT_GNU_ranges_base: |
| debug_info_p->ranges_base = uvalue; |
| break; |
| |
| case DW_AT_ranges: |
| if ((dwarf_version < 4 |
| && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| || form == DW_FORM_sec_offset) |
| { |
| /* Process range list. */ |
| unsigned int lmax = debug_info_p->max_range_lists; |
| unsigned int num = debug_info_p->num_range_lists; |
| |
| if (lmax == 0 || num >= lmax) |
| { |
| lmax += 1024; |
| debug_info_p->range_lists = (dwarf_vma *) |
| xcrealloc (debug_info_p->range_lists, |
| lmax, sizeof (*debug_info_p->range_lists)); |
| debug_info_p->max_range_lists = lmax; |
| } |
| debug_info_p->range_lists [num] = uvalue; |
| debug_info_p->num_range_lists++; |
| } |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| if (do_loc || attribute == 0) |
| return data; |
| |
| /* For some attributes we can display further information. */ |
| switch (attribute) |
| { |
| case DW_AT_inline: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| case DW_INL_not_inlined: |
| printf (_("(not inlined)")); |
| break; |
| case DW_INL_inlined: |
| printf (_("(inlined)")); |
| break; |
| case DW_INL_declared_not_inlined: |
| printf (_("(declared as inline but ignored)")); |
| break; |
| case DW_INL_declared_inlined: |
| printf (_("(declared as inline and inlined)")); |
| break; |
| default: |
| printf (_(" (Unknown inline attribute value: %s)"), |
| dwarf_vmatoa ("x", uvalue)); |
| break; |
| } |
| break; |
| |
| case DW_AT_language: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| /* Ordered by the numeric value of these constants. */ |
| case DW_LANG_C89: printf ("(ANSI C)"); break; |
| case DW_LANG_C: printf ("(non-ANSI C)"); break; |
| case DW_LANG_Ada83: printf ("(Ada)"); break; |
| case DW_LANG_C_plus_plus: printf ("(C++)"); break; |
| case DW_LANG_Cobol74: printf ("(Cobol 74)"); break; |
| case DW_LANG_Cobol85: printf ("(Cobol 85)"); break; |
| case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break; |
| case DW_LANG_Fortran90: printf ("(Fortran 90)"); break; |
| case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break; |
| case DW_LANG_Modula2: printf ("(Modula 2)"); break; |
| /* DWARF 2.1 values. */ |
| case DW_LANG_Java: printf ("(Java)"); break; |
| case DW_LANG_C99: printf ("(ANSI C99)"); break; |
| case DW_LANG_Ada95: printf ("(ADA 95)"); break; |
| case DW_LANG_Fortran95: printf ("(Fortran 95)"); break; |
| /* DWARF 3 values. */ |
| case DW_LANG_PLI: printf ("(PLI)"); break; |
| case DW_LANG_ObjC: printf ("(Objective C)"); break; |
| case DW_LANG_ObjC_plus_plus: printf ("(Objective C++)"); break; |
| case DW_LANG_UPC: printf ("(Unified Parallel C)"); break; |
| case DW_LANG_D: printf ("(D)"); break; |
| /* DWARF 4 values. */ |
| case DW_LANG_Python: printf ("(Python)"); break; |
| /* DWARF 5 values. */ |
| case DW_LANG_Go: printf ("(Go)"); break; |
| case DW_LANG_C_plus_plus_11: printf ("(C++11)"); break; |
| case DW_LANG_C11: printf ("(C11)"); break; |
| case DW_LANG_C_plus_plus_14: printf ("(C++14)"); break; |
| case DW_LANG_Fortran03: printf ("(Fortran 03)"); break; |
| case DW_LANG_Fortran08: printf ("(Fortran 08)"); break; |
| /* MIPS extension. */ |
| case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break; |
| /* UPC extension. */ |
| case DW_LANG_Upc: printf ("(Unified Parallel C)"); break; |
| default: |
| if (uvalue >= DW_LANG_lo_user && uvalue <= DW_LANG_hi_user) |
| printf (_("(implementation defined: %s)"), |
| dwarf_vmatoa ("x", uvalue)); |
| else |
| printf (_("(Unknown: %s)"), dwarf_vmatoa ("x", uvalue)); |
| break; |
| } |
| break; |
| |
| case DW_AT_encoding: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| case DW_ATE_void: printf ("(void)"); break; |
| case DW_ATE_address: printf ("(machine address)"); break; |
| case DW_ATE_boolean: printf ("(boolean)"); break; |
| case DW_ATE_complex_float: printf ("(complex float)"); break; |
| case DW_ATE_float: printf ("(float)"); break; |
| case DW_ATE_signed: printf ("(signed)"); break; |
| case DW_ATE_signed_char: printf ("(signed char)"); break; |
| case DW_ATE_unsigned: printf ("(unsigned)"); break; |
| case DW_ATE_unsigned_char: printf ("(unsigned char)"); break; |
| /* DWARF 2.1 values: */ |
| case DW_ATE_imaginary_float: printf ("(imaginary float)"); break; |
| case DW_ATE_decimal_float: printf ("(decimal float)"); break; |
| /* DWARF 3 values: */ |
| case DW_ATE_packed_decimal: printf ("(packed_decimal)"); break; |
| case DW_ATE_numeric_string: printf ("(numeric_string)"); break; |
| case DW_ATE_edited: printf ("(edited)"); break; |
| case DW_ATE_signed_fixed: printf ("(signed_fixed)"); break; |
| case DW_ATE_unsigned_fixed: printf ("(unsigned_fixed)"); break; |
| /* HP extensions: */ |
| case DW_ATE_HP_float80: printf ("(HP_float80)"); break; |
| case DW_ATE_HP_complex_float80: printf ("(HP_complex_float80)"); break; |
| case DW_ATE_HP_float128: printf ("(HP_float128)"); break; |
| case DW_ATE_HP_complex_float128:printf ("(HP_complex_float128)"); break; |
| case DW_ATE_HP_floathpintel: printf ("(HP_floathpintel)"); break; |
| case DW_ATE_HP_imaginary_float80: printf ("(HP_imaginary_float80)"); break; |
| case DW_ATE_HP_imaginary_float128: printf ("(HP_imaginary_float128)"); break; |
| /* DWARF 4 values: */ |
| case DW_ATE_UTF: printf ("(unicode string)"); break; |
| |
| default: |
| if (uvalue >= DW_ATE_lo_user |
| && uvalue <= DW_ATE_hi_user) |
| printf (_("(user defined type)")); |
| else |
| printf (_("(unknown type)")); |
| break; |
| } |
| break; |
| |
| case DW_AT_accessibility: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| case DW_ACCESS_public: printf ("(public)"); break; |
| case DW_ACCESS_protected: printf ("(protected)"); break; |
| case DW_ACCESS_private: printf ("(private)"); break; |
| default: |
| printf (_("(unknown accessibility)")); |
| break; |
| } |
| break; |
| |
| case DW_AT_visibility: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| case DW_VIS_local: printf ("(local)"); break; |
| case DW_VIS_exported: printf ("(exported)"); break; |
| case DW_VIS_qualified: printf ("(qualified)"); break; |
| default: printf (_("(unknown visibility)")); break; |
| } |
| break; |
| |
| case DW_AT_virtuality: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| case DW_VIRTUALITY_none: printf ("(none)"); break; |
| case DW_VIRTUALITY_virtual: printf ("(virtual)"); break; |
| case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break; |
| default: printf (_("(unknown virtuality)")); break; |
| } |
| break; |
| |
| case DW_AT_identifier_case: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| case DW_ID_case_sensitive: printf ("(case_sensitive)"); break; |
| case DW_ID_up_case: printf ("(up_case)"); break; |
| case DW_ID_down_case: printf ("(down_case)"); break; |
| case DW_ID_case_insensitive: printf ("(case_insensitive)"); break; |
| default: printf (_("(unknown case)")); break; |
| } |
| break; |
| |
| case DW_AT_calling_convention: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| case DW_CC_normal: printf ("(normal)"); break; |
| case DW_CC_program: printf ("(program)"); break; |
| case DW_CC_nocall: printf ("(nocall)"); break; |
| default: |
| if (uvalue >= DW_CC_lo_user |
| && uvalue <= DW_CC_hi_user) |
| printf (_("(user defined)")); |
| else |
| printf (_("(unknown convention)")); |
| } |
| break; |
| |
| case DW_AT_ordering: |
| printf ("\t"); |
| switch (uvalue) |
| { |
| case -1: printf (_("(undefined)")); break; |
| case 0: printf ("(row major)"); break; |
| case 1: printf ("(column major)"); break; |
| } |
| break; |
| |
| case DW_AT_frame_base: |
| have_frame_base = 1; |
| /* Fall through. */ |
| case DW_AT_location: |
| case DW_AT_string_length: |
| case DW_AT_return_addr: |
| case DW_AT_data_member_location: |
| case DW_AT_vtable_elem_location: |
| case DW_AT_segment: |
| case DW_AT_static_link: |
| case DW_AT_use_location: |
| case DW_AT_GNU_call_site_value: |
| case DW_AT_GNU_call_site_data_value: |
| case DW_AT_GNU_call_site_target: |
| case DW_AT_GNU_call_site_target_clobbered: |
| if ((dwarf_version < 4 |
| && (form == DW_FORM_data4 || form == DW_FORM_data8)) |
| || form == DW_FORM_sec_offset) |
| printf (_(" (location list)")); |
| /* Fall through. */ |
| case DW_AT_allocated: |
| case DW_AT_associated: |
| case DW_AT_data_location: |
| case DW_AT_stride: |
| case DW_AT_upper_bound: |
| case DW_AT_lower_bound: |
| if (block_start) |
| { |
| int need_frame_base; |
| |
| printf ("\t("); |
| need_frame_base = decode_location_expression (block_start, |
| pointer_size, |
| offset_size, |
| dwarf_version, |
| uvalue, |
| cu_offset, section); |
| printf (")"); |
| if (need_frame_base && !have_frame_base) |
| printf (_(" [without DW_AT_frame_base]")); |
| } |
| break; |
| |
| case DW_AT_import: |
| { |
| if (form == DW_FORM_ref_sig8 |
| || form == DW_FORM_GNU_ref_alt) |
| break; |
| |
| if (form == DW_FORM_ref1 |
| || form == DW_FORM_ref2 |
| || form == DW_FORM_ref4 |
| || form == DW_FORM_ref_udata) |
| uvalue += cu_offset; |
| |
| if (uvalue >= section->size) |
| warn (_("Offset %s used as value for DW_AT_import attribute of DIE at offset 0x%lx is too big.\n"), |
| dwarf_vmatoa ("x", uvalue), |
| (unsigned long) (orig_data - section->start)); |
| else |
| { |
| unsigned long abbrev_number; |
| abbrev_entry * entry; |
| |
| abbrev_number = read_uleb128 (section->start + uvalue, NULL, end); |
| |
| printf (_("\t[Abbrev Number: %ld"), abbrev_number); |
| /* Don't look up abbrev for DW_FORM_ref_addr, as it very often will |
| use different abbrev table, and we don't track .debug_info chunks |
| yet. */ |
| if (form != DW_FORM_ref_addr) |
| { |
| for (entry = first_abbrev; entry != NULL; entry = entry->next) |
| if (entry->entry == abbrev_number) |
| break; |
| if (entry != NULL) |
| printf (" (%s)", get_TAG_name (entry->tag)); |
| } |
| printf ("]"); |
| } |
| } |
| break; |
| |
| default: |
| break; |
| } |
| |
| return data; |
| } |
| |
| static const char * |
| get_AT_name (unsigned long attribute) |
| { |
| const char *name; |
| |
| if (attribute == 0) |
| return "DW_AT value: 0"; |
| |
| /* One value is shared by the MIPS and HP extensions: */ |
| if (attribute == DW_AT_MIPS_fde) |
| return "DW_AT_MIPS_fde or DW_AT_HP_unmodifiable"; |
| |
| name = get_DW_AT_name (attribute); |
| |
| if (name == NULL) |
| { |
| static char buffer[100]; |
| |
| snprintf (buffer, sizeof (buffer), _("Unknown AT value: %lx"), |
| attribute); |
| return buffer; |
| } |
| |
| return name; |
| } |
| |
| static unsigned char * |
| read_and_display_attr (unsigned long attribute, |
| unsigned long form, |
| unsigned char * data, |
| unsigned char * end, |
| dwarf_vma cu_offset, |
| dwarf_vma pointer_size, |
| dwarf_vma offset_size, |
| int dwarf_version, |
| debug_info * debug_info_p, |
| int do_loc, |
| struct dwarf_section * section, |
| struct cu_tu_set * this_set) |
| { |
| if (!do_loc) |
| printf (" %-18s:", get_AT_name (attribute)); |
| data = read_and_display_attr_value (attribute, form, data, end, |
| cu_offset, pointer_size, offset_size, |
| dwarf_version, debug_info_p, |
| do_loc, section, this_set); |
| if (!do_loc) |
| printf ("\n"); |
| return data; |
| } |
| |
| /* Process the contents of a .debug_info section. If do_loc is non-zero |
| then we are scanning for location lists and we do not want to display |
| anything to the user. If do_types is non-zero, we are processing |
| a .debug_types section instead of a .debug_info section. */ |
| |
| static int |
| process_debug_info (struct dwarf_section *section, |
| void *file, |
| enum dwarf_section_display_enum abbrev_sec, |
| int do_loc, |
| int do_types) |
| { |
| unsigned char *start = section->start; |
| unsigned char *end = start + section->size; |
| unsigned char *section_begin; |
| unsigned int unit; |
| unsigned int num_units = 0; |
| |
| if ((do_loc || do_debug_loc || do_debug_ranges) |
| && num_debug_info_entries == 0 |
| && ! do_types) |
| { |
| dwarf_vma length; |
| |
| /* First scan the section to get the number of comp units. */ |
| for (section_begin = start, num_units = 0; section_begin < end; |
| num_units ++) |
| { |
| /* Read the first 4 bytes. For a 32-bit DWARF section, this |
| will be the length. For a 64-bit DWARF section, it'll be |
| the escape code 0xffffffff followed by an 8 byte length. */ |
| SAFE_BYTE_GET (length, section_begin, 4, end); |
| |
| if (length == 0xffffffff) |
| { |
| SAFE_BYTE_GET (length, section_begin + 4, 8, end); |
| section_begin += length + 12; |
| } |
| else if (length >= 0xfffffff0 && length < 0xffffffff) |
| { |
| warn (_("Reserved length value (0x%s) found in section %s\n"), |
| dwarf_vmatoa ("x", length), section->name); |
| return 0; |
| } |
| else |
| section_begin += length + 4; |
| |
| /* Negative values are illegal, they may even cause infinite |
| looping. This can happen if we can't accurately apply |
| relocations to an object file, or if the file is corrupt. */ |
| if ((signed long) length <= 0 || section_begin < start) |
| { |
| warn (_("Corrupt unit length (0x%s) found in section %s\n"), |
| dwarf_vmatoa ("x", length), section->name); |
| return 0; |
| } |
| } |
| |
| if (num_units == 0) |
| { |
| error (_("No comp units in %s section ?\n"), section->name); |
| return 0; |
| } |
| |
| /* Then allocate an array to hold the information. */ |
| debug_information = (debug_info *) cmalloc (num_units, |
| sizeof (* debug_information)); |
| if (debug_information == NULL) |
| { |
| error (_("Not enough memory for a debug info array of %u entries\n"), |
| num_units); |
| alloc_num_debug_info_entries = num_debug_info_entries = 0; |
| return 0; |
| } |
| /* PR 17531: file: 92ca3797. |
| We cannot rely upon the debug_information array being initialised |
| before it is used. A corrupt file could easily contain references |
| to a unit for which information has not been made available. So |
| we ensure that the array is zeroed here. */ |
| memset (debug_information, 0, num_units * sizeof (*debug_information)); |
| |
| alloc_num_debug_info_entries = num_units; |
| } |
| |
| if (!do_loc) |
| { |
| if (dwarf_start_die == 0) |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| |
| load_debug_section (str, file); |
| load_debug_section (str_dwo, file); |
| load_debug_section (str_index, file); |
| load_debug_section (str_index_dwo, file); |
| load_debug_section (debug_addr, file); |
| } |
| |
| load_debug_section (abbrev_sec, file); |
| if (debug_displays [abbrev_sec].section.start == NULL) |
| { |
| warn (_("Unable to locate %s section!\n"), |
| debug_displays [abbrev_sec].section.name); |
| return 0; |
| } |
| |
| for (section_begin = start, unit = 0; start < end; unit++) |
| { |
| DWARF2_Internal_CompUnit compunit; |
| unsigned char *hdrptr; |
| unsigned char *tags; |
| int level, last_level, saved_level; |
| dwarf_vma cu_offset; |
| unsigned int offset_size; |
| int initial_length_size; |
| dwarf_vma signature_high = 0; |
| dwarf_vma signature_low = 0; |
| dwarf_vma type_offset = 0; |
| struct cu_tu_set *this_set; |
| dwarf_vma abbrev_base; |
| size_t abbrev_size; |
| |
| hdrptr = start; |
| |
| SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 4, end); |
| |
| if (compunit.cu_length == 0xffffffff) |
| { |
| SAFE_BYTE_GET_AND_INC (compunit.cu_length, hdrptr, 8, end); |
| offset_size = 8; |
| initial_length_size = 12; |
| } |
| else |
| { |
| offset_size = 4; |
| initial_length_size = 4; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (compunit.cu_version, hdrptr, 2, end); |
| |
| cu_offset = start - section_begin; |
| |
| this_set = find_cu_tu_set_v2 (cu_offset, do_types); |
| |
| SAFE_BYTE_GET_AND_INC (compunit.cu_abbrev_offset, hdrptr, offset_size, end); |
| |
| if (this_set == NULL) |
| { |
| abbrev_base = 0; |
| abbrev_size = debug_displays [abbrev_sec].section.size; |
| } |
| else |
| { |
| abbrev_base = this_set->section_offsets [DW_SECT_ABBREV]; |
| abbrev_size = this_set->section_sizes [DW_SECT_ABBREV]; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (compunit.cu_pointer_size, hdrptr, 1, end); |
| /* PR 17512: file: 001-108546-0.001:0.1. */ |
| if (compunit.cu_pointer_size < 2 || compunit.cu_pointer_size > 8) |
| { |
| warn (_("Invalid pointer size (%d) in compunit header, using %d instead\n"), |
| compunit.cu_pointer_size, offset_size); |
| compunit.cu_pointer_size = offset_size; |
| } |
| |
| if (do_types) |
| { |
| SAFE_BYTE_GET64 (hdrptr, &signature_high, &signature_low, end); |
| hdrptr += 8; |
| SAFE_BYTE_GET_AND_INC (type_offset, hdrptr, offset_size, end); |
| } |
| |
| if ((do_loc || do_debug_loc || do_debug_ranges) |
| && num_debug_info_entries == 0 |
| && ! do_types) |
| { |
| debug_information [unit].cu_offset = cu_offset; |
| debug_information [unit].pointer_size |
| = compunit.cu_pointer_size; |
| debug_information [unit].offset_size = offset_size; |
| debug_information [unit].dwarf_version = compunit.cu_version; |
| debug_information [unit].base_address = 0; |
| debug_information [unit].addr_base = DEBUG_INFO_UNAVAILABLE; |
| debug_information [unit].ranges_base = DEBUG_INFO_UNAVAILABLE; |
| debug_information [unit].loc_offsets = NULL; |
| debug_information [unit].have_frame_base = NULL; |
| debug_information [unit].max_loc_offsets = 0; |
| debug_information [unit].num_loc_offsets = 0; |
| debug_information [unit].range_lists = NULL; |
| debug_information [unit].max_range_lists= 0; |
| debug_information [unit].num_range_lists = 0; |
| } |
| |
| if (!do_loc && dwarf_start_die == 0) |
| { |
| printf (_(" Compilation Unit @ offset 0x%s:\n"), |
| dwarf_vmatoa ("x", cu_offset)); |
| printf (_(" Length: 0x%s (%s)\n"), |
| dwarf_vmatoa ("x", compunit.cu_length), |
| offset_size == 8 ? "64-bit" : "32-bit"); |
| printf (_(" Version: %d\n"), compunit.cu_version); |
| printf (_(" Abbrev Offset: 0x%s\n"), |
| dwarf_vmatoa ("x", compunit.cu_abbrev_offset)); |
| printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size); |
| if (do_types) |
| { |
| char buf[64]; |
| |
| printf (_(" Signature: 0x%s\n"), |
| dwarf_vmatoa64 (signature_high, signature_low, |
| buf, sizeof (buf))); |
| printf (_(" Type Offset: 0x%s\n"), |
| dwarf_vmatoa ("x", type_offset)); |
| } |
| if (this_set != NULL) |
| { |
| dwarf_vma *offsets = this_set->section_offsets; |
| size_t *sizes = this_set->section_sizes; |
| |
| printf (_(" Section contributions:\n")); |
| printf (_(" .debug_abbrev.dwo: 0x%s 0x%s\n"), |
| dwarf_vmatoa ("x", offsets [DW_SECT_ABBREV]), |
| dwarf_vmatoa ("x", sizes [DW_SECT_ABBREV])); |
| printf (_(" .debug_line.dwo: 0x%s 0x%s\n"), |
| dwarf_vmatoa ("x", offsets [DW_SECT_LINE]), |
| dwarf_vmatoa ("x", sizes [DW_SECT_LINE])); |
| printf (_(" .debug_loc.dwo: 0x%s 0x%s\n"), |
| dwarf_vmatoa ("x", offsets [DW_SECT_LOC]), |
| dwarf_vmatoa ("x", sizes [DW_SECT_LOC])); |
| printf (_(" .debug_str_offsets.dwo: 0x%s 0x%s\n"), |
| dwarf_vmatoa ("x", offsets [DW_SECT_STR_OFFSETS]), |
| dwarf_vmatoa ("x", sizes [DW_SECT_STR_OFFSETS])); |
| } |
| } |
| |
| if (cu_offset + compunit.cu_length + initial_length_size |
| > section->size) |
| { |
| warn (_("Debug info is corrupted, length of CU at %s" |
| " extends beyond end of section (length = %s)\n"), |
| dwarf_vmatoa ("x", cu_offset), |
| dwarf_vmatoa ("x", compunit.cu_length)); |
| num_units = unit; |
| break; |
| } |
| tags = hdrptr; |
| start += compunit.cu_length + initial_length_size; |
| |
| if (start > end) |
| { |
| warn (_("Debug info is corrupt. CU at %s extends beyond end of section"), |
| dwarf_vmatoa ("x", cu_offset)); |
| start = end; |
| } |
| |
| if (compunit.cu_version != 2 |
| && compunit.cu_version != 3 |
| && compunit.cu_version != 4) |
| { |
| warn (_("CU at offset %s contains corrupt or " |
| "unsupported version number: %d.\n"), |
| dwarf_vmatoa ("x", cu_offset), compunit.cu_version); |
| continue; |
| } |
| |
| free_abbrevs (); |
| |
| /* Process the abbrevs used by this compilation unit. */ |
| if (compunit.cu_abbrev_offset >= abbrev_size) |
| warn (_("Debug info is corrupted, abbrev offset (%lx) is larger than abbrev section size (%lx)\n"), |
| (unsigned long) compunit.cu_abbrev_offset, |
| (unsigned long) abbrev_size); |
| /* PR 17531: file:4bcd9ce9. */ |
| else if ((abbrev_base + abbrev_size) |
| > debug_displays [abbrev_sec].section.size) |
| warn (_("Debug info is corrupted, abbrev size (%lx) is larger than abbrev section size (%lx)\n"), |
| (unsigned long) abbrev_base + abbrev_size, |
| (unsigned long) debug_displays [abbrev_sec].section.size); |
| else |
| process_abbrev_section |
| (((unsigned char *) debug_displays [abbrev_sec].section.start |
| + abbrev_base + compunit.cu_abbrev_offset), |
| ((unsigned char *) debug_displays [abbrev_sec].section.start |
| + abbrev_base + abbrev_size)); |
| |
| level = 0; |
| last_level = level; |
| saved_level = -1; |
| while (tags < start) |
| { |
| unsigned int bytes_read; |
| unsigned long abbrev_number; |
| unsigned long die_offset; |
| abbrev_entry *entry; |
| abbrev_attr *attr; |
| int do_printing = 1; |
| |
| die_offset = tags - section_begin; |
| |
| abbrev_number = read_uleb128 (tags, & bytes_read, start); |
| tags += bytes_read; |
| |
| /* A null DIE marks the end of a list of siblings or it may also be |
| a section padding. */ |
| if (abbrev_number == 0) |
| { |
| /* Check if it can be a section padding for the last CU. */ |
| if (level == 0 && start == end) |
| { |
| unsigned char *chk; |
| |
| for (chk = tags; chk < start; chk++) |
| if (*chk != 0) |
| break; |
| if (chk == start) |
| break; |
| } |
| |
| if (!do_loc && die_offset >= dwarf_start_die |
| && (dwarf_cutoff_level == -1 |
| || level < dwarf_cutoff_level)) |
| printf (_(" <%d><%lx>: Abbrev Number: 0\n"), |
| level, die_offset); |
| |
| --level; |
| if (level < 0) |
| { |
| static unsigned num_bogus_warns = 0; |
| |
| if (num_bogus_warns < 3) |
| { |
| warn (_("Bogus end-of-siblings marker detected at offset %lx in %s section\n"), |
| die_offset, section->name); |
| num_bogus_warns ++; |
| if (num_bogus_warns == 3) |
| warn (_("Further warnings about bogus end-of-sibling markers suppressed\n")); |
| } |
| } |
| if (dwarf_start_die != 0 && level < saved_level) |
| return 1; |
| continue; |
| } |
| |
| if (!do_loc) |
| { |
| if (dwarf_start_die != 0 && die_offset < dwarf_start_die) |
| do_printing = 0; |
| else |
| { |
| if (dwarf_start_die != 0 && die_offset == dwarf_start_die) |
| saved_level = level; |
| do_printing = (dwarf_cutoff_level == -1 |
| || level < dwarf_cutoff_level); |
| if (do_printing) |
| printf (_(" <%d><%lx>: Abbrev Number: %lu"), |
| level, die_offset, abbrev_number); |
| else if (dwarf_cutoff_level == -1 |
| || last_level < dwarf_cutoff_level) |
| printf (_(" <%d><%lx>: ...\n"), level, die_offset); |
| last_level = level; |
| } |
| } |
| |
| /* Scan through the abbreviation list until we reach the |
| correct entry. */ |
| for (entry = first_abbrev; |
| entry && entry->entry != abbrev_number; |
| entry = entry->next) |
| continue; |
| |
| if (entry == NULL) |
| { |
| if (!do_loc && do_printing) |
| { |
| printf ("\n"); |
| fflush (stdout); |
| } |
| warn (_("DIE at offset 0x%lx refers to abbreviation number %lu which does not exist\n"), |
| die_offset, abbrev_number); |
| return 0; |
| } |
| |
| if (!do_loc && do_printing) |
| printf (" (%s)\n", get_TAG_name (entry->tag)); |
| |
| switch (entry->tag) |
| { |
| default: |
| need_base_address = 0; |
| break; |
| case DW_TAG_compile_unit: |
| need_base_address = 1; |
| break; |
| case DW_TAG_entry_point: |
| case DW_TAG_subprogram: |
| need_base_address = 0; |
| /* Assuming that there is no DW_AT_frame_base. */ |
| have_frame_base = 0; |
| break; |
| } |
| |
| for (attr = entry->first_attr; |
| attr && attr->attribute; |
| attr = attr->next) |
| { |
| debug_info *arg; |
| |
| if (! do_loc && do_printing) |
| /* Show the offset from where the tag was extracted. */ |
| printf (" <%lx>", (unsigned long)(tags - section_begin)); |
| |
| if (debug_information && unit < alloc_num_debug_info_entries) |
| arg = debug_information + unit; |
| else |
| arg = NULL; |
| |
| tags = read_and_display_attr (attr->attribute, |
| attr->form, |
| tags, |
| end, |
| cu_offset, |
| compunit.cu_pointer_size, |
| offset_size, |
| compunit.cu_version, |
| arg, |
| do_loc || ! do_printing, |
| section, |
| this_set); |
| } |
| |
| if (entry->children) |
| ++level; |
| } |
| } |
| |
| /* Set num_debug_info_entries here so that it can be used to check if |
| we need to process .debug_loc and .debug_ranges sections. */ |
| if ((do_loc || do_debug_loc || do_debug_ranges) |
| && num_debug_info_entries == 0 |
| && ! do_types) |
| { |
| if (num_units > alloc_num_debug_info_entries) |
| num_debug_info_entries = alloc_num_debug_info_entries; |
| else |
| num_debug_info_entries = num_units; |
| } |
| |
| if (!do_loc) |
| printf ("\n"); |
| |
| return 1; |
| } |
| |
| /* Locate and scan the .debug_info section in the file and record the pointer |
| sizes and offsets for the compilation units in it. Usually an executable |
| will have just one pointer size, but this is not guaranteed, and so we try |
| not to make any assumptions. Returns zero upon failure, or the number of |
| compilation units upon success. */ |
| |
| static unsigned int |
| load_debug_info (void * file) |
| { |
| /* Reset the last pointer size so that we can issue correct error |
| messages if we are displaying the contents of more than one section. */ |
| last_pointer_size = 0; |
| warned_about_missing_comp_units = FALSE; |
| |
| /* If we have already tried and failed to load the .debug_info |
| section then do not bother to repeat the task. */ |
| if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| return 0; |
| |
| /* If we already have the information there is nothing else to do. */ |
| if (num_debug_info_entries > 0) |
| return num_debug_info_entries; |
| |
| /* If this is a DWARF package file, load the CU and TU indexes. */ |
| load_cu_tu_indexes (file); |
| |
| if (load_debug_section (info, file) |
| && process_debug_info (&debug_displays [info].section, file, abbrev, 1, 0)) |
| return num_debug_info_entries; |
| |
| if (load_debug_section (info_dwo, file) |
| && process_debug_info (&debug_displays [info_dwo].section, file, |
| abbrev_dwo, 1, 0)) |
| return num_debug_info_entries; |
| |
| num_debug_info_entries = DEBUG_INFO_UNAVAILABLE; |
| return 0; |
| } |
| |
| /* Read a DWARF .debug_line section header starting at DATA. |
| Upon success returns an updated DATA pointer and the LINFO |
| structure and the END_OF_SEQUENCE pointer will be filled in. |
| Otherwise returns NULL. */ |
| |
| static unsigned char * |
| read_debug_line_header (struct dwarf_section * section, |
| unsigned char * data, |
| unsigned char * end, |
| DWARF2_Internal_LineInfo * linfo, |
| unsigned char ** end_of_sequence) |
| { |
| unsigned char *hdrptr; |
| unsigned int offset_size; |
| unsigned int initial_length_size; |
| |
| /* Extract information from the Line Number Program Header. |
| (section 6.2.4 in the Dwarf3 doc). */ |
| hdrptr = data; |
| |
| /* Get and check the length of the block. */ |
| SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 4, end); |
| |
| if (linfo->li_length == 0xffffffff) |
| { |
| /* This section is 64-bit DWARF 3. */ |
| SAFE_BYTE_GET_AND_INC (linfo->li_length, hdrptr, 8, end); |
| offset_size = 8; |
| initial_length_size = 12; |
| } |
| else |
| { |
| offset_size = 4; |
| initial_length_size = 4; |
| } |
| |
| if (linfo->li_length + initial_length_size > section->size) |
| { |
| /* If the length field has a relocation against it, then we should |
| not complain if it is inaccurate (and probably negative). This |
| happens in object files when the .debug_line section is actually |
| comprised of several different .debug_line.* sections, (some of |
| which may be removed by linker garbage collection), and a relocation |
| is used to compute the correct length once that is done. */ |
| if (reloc_at (section, (hdrptr - section->start) - offset_size)) |
| { |
| linfo->li_length = (end - data) - initial_length_size; |
| } |
| else |
| { |
| warn (_("The length field (0x%lx) in the debug_line header is wrong - the section is too small\n"), |
| (long) linfo->li_length); |
| return NULL; |
| } |
| } |
| |
| /* Get and check the version number. */ |
| SAFE_BYTE_GET_AND_INC (linfo->li_version, hdrptr, 2, end); |
| |
| if (linfo->li_version != 2 |
| && linfo->li_version != 3 |
| && linfo->li_version != 4) |
| { |
| warn (_("Only DWARF version 2, 3 and 4 line info is currently supported.\n")); |
| return NULL; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (linfo->li_prologue_length, hdrptr, offset_size, end); |
| SAFE_BYTE_GET_AND_INC (linfo->li_min_insn_length, hdrptr, 1, end); |
| |
| if (linfo->li_version >= 4) |
| { |
| SAFE_BYTE_GET_AND_INC (linfo->li_max_ops_per_insn, hdrptr, 1, end); |
| |
| if (linfo->li_max_ops_per_insn == 0) |
| { |
| warn (_("Invalid maximum operations per insn.\n")); |
| return NULL; |
| } |
| } |
| else |
| linfo->li_max_ops_per_insn = 1; |
| |
| SAFE_BYTE_GET_AND_INC (linfo->li_default_is_stmt, hdrptr, 1, end); |
| SAFE_SIGNED_BYTE_GET_AND_INC (linfo->li_line_base, hdrptr, 1, end); |
| SAFE_BYTE_GET_AND_INC (linfo->li_line_range, hdrptr, 1, end); |
| SAFE_BYTE_GET_AND_INC (linfo->li_opcode_base, hdrptr, 1, end); |
| |
| * end_of_sequence = data + linfo->li_length + initial_length_size; |
| /* PR 17512: file:002-117414-0.004. */ |
| if (* end_of_sequence > end) |
| { |
| warn (_("Line length %s extends beyond end of section\n"), |
| dwarf_vmatoa ("u", linfo->li_length)); |
| * end_of_sequence = end; |
| return NULL; |
| } |
| |
| return hdrptr; |
| } |
| |
| static int |
| display_debug_lines_raw (struct dwarf_section *section, |
| unsigned char *data, |
| unsigned char *end) |
| { |
| unsigned char *start = section->start; |
| |
| printf (_("Raw dump of debug contents of section %s:\n\n"), |
| section->name); |
| |
| while (data < end) |
| { |
| static DWARF2_Internal_LineInfo saved_linfo; |
| DWARF2_Internal_LineInfo linfo; |
| unsigned char *standard_opcodes; |
| unsigned char *end_of_sequence; |
| unsigned int last_dir_entry = 0; |
| int i; |
| |
| if (const_strneq (section->name, ".debug_line.") |
| /* Note: the following does not apply to .debug_line.dwo sections. |
| These are full debug_line sections. */ |
| && strcmp (section->name, ".debug_line.dwo") != 0) |
| { |
| /* Sections named .debug_line.<foo> are fragments of a .debug_line |
| section containing just the Line Number Statements. They are |
| created by the assembler and intended to be used alongside gcc's |
| -ffunction-sections command line option. When the linker's |
| garbage collection decides to discard a .text.<foo> section it |
| can then also discard the line number information in .debug_line.<foo>. |
| |
| Since the section is a fragment it does not have the details |
| needed to fill out a LineInfo structure, so instead we use the |
| details from the last full debug_line section that we processed. */ |
| end_of_sequence = end; |
| standard_opcodes = NULL; |
| linfo = saved_linfo; |
| /* PR 17531: file: 0522b371. */ |
| if (linfo.li_line_range == 0) |
| { |
| warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n")); |
| return 0; |
| } |
| reset_state_machine (linfo.li_default_is_stmt); |
| } |
| else |
| { |
| unsigned char * hdrptr; |
| |
| if ((hdrptr = read_debug_line_header (section, data, end, & linfo, |
| & end_of_sequence)) == NULL) |
| return 0; |
| |
| printf (_(" Offset: 0x%lx\n"), (long)(data - start)); |
| printf (_(" Length: %ld\n"), (long) linfo.li_length); |
| printf (_(" DWARF Version: %d\n"), linfo.li_version); |
| printf (_(" Prologue Length: %d\n"), (int) linfo.li_prologue_length); |
| printf (_(" Minimum Instruction Length: %d\n"), linfo.li_min_insn_length); |
| if (linfo.li_version >= 4) |
| printf (_(" Maximum Ops per Instruction: %d\n"), linfo.li_max_ops_per_insn); |
| printf (_(" Initial value of 'is_stmt': %d\n"), linfo.li_default_is_stmt); |
| printf (_(" Line Base: %d\n"), linfo.li_line_base); |
| printf (_(" Line Range: %d\n"), linfo.li_line_range); |
| printf (_(" Opcode Base: %d\n"), linfo.li_opcode_base); |
| |
| /* PR 17512: file: 1665-6428-0.004. */ |
| if (linfo.li_line_range == 0) |
| { |
| warn (_("Line range of 0 is invalid, using 1 instead\n")); |
| linfo.li_line_range = 1; |
| } |
| |
| reset_state_machine (linfo.li_default_is_stmt); |
| |
| /* Display the contents of the Opcodes table. */ |
| standard_opcodes = hdrptr; |
| |
| /* PR 17512: file: 002-417945-0.004. */ |
| if (standard_opcodes + linfo.li_opcode_base >= end) |
| { |
| warn (_("Line Base extends beyond end of section\n")); |
| return 0; |
| } |
| |
| printf (_("\n Opcodes:\n")); |
| |
| for (i = 1; i < linfo.li_opcode_base; i++) |
| printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]); |
| |
| /* Display the contents of the Directory table. */ |
| data = standard_opcodes + linfo.li_opcode_base - 1; |
| |
| if (*data == 0) |
| printf (_("\n The Directory Table is empty.\n")); |
| else |
| { |
| printf (_("\n The Directory Table (offset 0x%lx):\n"), |
| (long)(data - start)); |
| |
| while (data < end && *data != 0) |
| { |
| printf (" %d\t%.*s\n", ++last_dir_entry, (int) (end - data), data); |
| |
| data += strnlen ((char *) data, end - data) + 1; |
| } |
| |
| /* PR 17512: file: 002-132094-0.004. */ |
| if (data >= end - 1) |
| break; |
| } |
| |
| /* Skip the NUL at the end of the table. */ |
| data++; |
| |
| /* Display the contents of the File Name table. */ |
| if (*data == 0) |
| printf (_("\n The File Name Table is empty.\n")); |
| else |
| { |
| printf (_("\n The File Name Table (offset 0x%lx):\n"), |
| (long)(data - start)); |
| printf (_(" Entry\tDir\tTime\tSize\tName\n")); |
| |
| while (data < end && *data != 0) |
| { |
| unsigned char *name; |
| unsigned int bytes_read; |
| |
| printf (" %d\t", ++state_machine_regs.last_file_entry); |
| name = data; |
| data += strnlen ((char *) data, end - data) + 1; |
| |
| printf ("%s\t", |
| dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| data += bytes_read; |
| printf ("%s\t", |
| dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| data += bytes_read; |
| printf ("%s\t", |
| dwarf_vmatoa ("u", read_uleb128 (data, & bytes_read, end))); |
| data += bytes_read; |
| printf ("%.*s\n", (int)(end - name), name); |
| |
| if (data == end) |
| { |
| warn (_("Corrupt file name table entry\n")); |
| break; |
| } |
| } |
| } |
| |
| /* Skip the NUL at the end of the table. */ |
| data++; |
| putchar ('\n'); |
| saved_linfo = linfo; |
| } |
| |
| /* Now display the statements. */ |
| if (data >= end_of_sequence) |
| printf (_(" No Line Number Statements.\n")); |
| else |
| { |
| printf (_(" Line Number Statements:\n")); |
| |
| while (data < end_of_sequence) |
| { |
| unsigned char op_code; |
| dwarf_signed_vma adv; |
| dwarf_vma uladv; |
| unsigned int bytes_read; |
| |
| printf (" [0x%08lx]", (long)(data - start)); |
| |
| op_code = *data++; |
| |
| if (op_code >= linfo.li_opcode_base) |
| { |
| op_code -= linfo.li_opcode_base; |
| uladv = (op_code / linfo.li_line_range); |
| if (linfo.li_max_ops_per_insn == 1) |
| { |
| uladv *= linfo.li_min_insn_length; |
| state_machine_regs.address += uladv; |
| printf (_(" Special opcode %d: " |
| "advance Address by %s to 0x%s"), |
| op_code, dwarf_vmatoa ("u", uladv), |
| dwarf_vmatoa ("x", state_machine_regs.address)); |
| } |
| else |
| { |
| state_machine_regs.address |
| += ((state_machine_regs.op_index + uladv) |
| / linfo.li_max_ops_per_insn) |
| * linfo.li_min_insn_length; |
| state_machine_regs.op_index |
| = (state_machine_regs.op_index + uladv) |
| % linfo.li_max_ops_per_insn; |
| printf (_(" Special opcode %d: " |
| "advance Address by %s to 0x%s[%d]"), |
| op_code, dwarf_vmatoa ("u", uladv), |
| dwarf_vmatoa ("x", state_machine_regs.address), |
| state_machine_regs.op_index); |
| } |
| adv = (op_code % linfo.li_line_range) + linfo.li_line_base; |
| state_machine_regs.line += adv; |
| printf (_(" and Line by %s to %d\n"), |
| dwarf_vmatoa ("d", adv), state_machine_regs.line); |
| } |
| else switch (op_code) |
| { |
| case DW_LNS_extended_op: |
| data += process_extended_line_op (data, linfo.li_default_is_stmt, end); |
| break; |
| |
| case DW_LNS_copy: |
| printf (_(" Copy\n")); |
| break; |
| |
| case DW_LNS_advance_pc: |
| uladv = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| if (linfo.li_max_ops_per_insn == 1) |
| { |
| uladv *= linfo.li_min_insn_length; |
| state_machine_regs.address += uladv; |
| printf (_(" Advance PC by %s to 0x%s\n"), |
| dwarf_vmatoa ("u", uladv), |
| dwarf_vmatoa ("x", state_machine_regs.address)); |
| } |
| else |
| { |
| state_machine_regs.address |
| += ((state_machine_regs.op_index + uladv) |
| / linfo.li_max_ops_per_insn) |
| * linfo.li_min_insn_length; |
| state_machine_regs.op_index |
| = (state_machine_regs.op_index + uladv) |
| % linfo.li_max_ops_per_insn; |
| printf (_(" Advance PC by %s to 0x%s[%d]\n"), |
| dwarf_vmatoa ("u", uladv), |
| dwarf_vmatoa ("x", state_machine_regs.address), |
| state_machine_regs.op_index); |
| } |
| break; |
| |
| case DW_LNS_advance_line: |
| adv = read_sleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| state_machine_regs.line += adv; |
| printf (_(" Advance Line by %s to %d\n"), |
| dwarf_vmatoa ("d", adv), |
| state_machine_regs.line); |
| break; |
| |
| case DW_LNS_set_file: |
| adv = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| printf (_(" Set File Name to entry %s in the File Name Table\n"), |
| dwarf_vmatoa ("d", adv)); |
| state_machine_regs.file = adv; |
| break; |
| |
| case DW_LNS_set_column: |
| uladv = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| printf (_(" Set column to %s\n"), |
| dwarf_vmatoa ("u", uladv)); |
| state_machine_regs.column = uladv; |
| break; |
| |
| case DW_LNS_negate_stmt: |
| adv = state_machine_regs.is_stmt; |
| adv = ! adv; |
| printf (_(" Set is_stmt to %s\n"), dwarf_vmatoa ("d", adv)); |
| state_machine_regs.is_stmt = adv; |
| break; |
| |
| case DW_LNS_set_basic_block: |
| printf (_(" Set basic block\n")); |
| state_machine_regs.basic_block = 1; |
| break; |
| |
| case DW_LNS_const_add_pc: |
| uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); |
| if (linfo.li_max_ops_per_insn) |
| { |
| uladv *= linfo.li_min_insn_length; |
| state_machine_regs.address += uladv; |
| printf (_(" Advance PC by constant %s to 0x%s\n"), |
| dwarf_vmatoa ("u", uladv), |
| dwarf_vmatoa ("x", state_machine_regs.address)); |
| } |
| else |
| { |
| state_machine_regs.address |
| += ((state_machine_regs.op_index + uladv) |
| / linfo.li_max_ops_per_insn) |
| * linfo.li_min_insn_length; |
| state_machine_regs.op_index |
| = (state_machine_regs.op_index + uladv) |
| % linfo.li_max_ops_per_insn; |
| printf (_(" Advance PC by constant %s to 0x%s[%d]\n"), |
| dwarf_vmatoa ("u", uladv), |
| dwarf_vmatoa ("x", state_machine_regs.address), |
| state_machine_regs.op_index); |
| } |
| break; |
| |
| case DW_LNS_fixed_advance_pc: |
| SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); |
| state_machine_regs.address += uladv; |
| state_machine_regs.op_index = 0; |
| printf (_(" Advance PC by fixed size amount %s to 0x%s\n"), |
| dwarf_vmatoa ("u", uladv), |
| dwarf_vmatoa ("x", state_machine_regs.address)); |
| break; |
| |
| case DW_LNS_set_prologue_end: |
| printf (_(" Set prologue_end to true\n")); |
| break; |
| |
| case DW_LNS_set_epilogue_begin: |
| printf (_(" Set epilogue_begin to true\n")); |
| break; |
| |
| case DW_LNS_set_isa: |
| uladv = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| printf (_(" Set ISA to %s\n"), dwarf_vmatoa ("u", uladv)); |
| break; |
| |
| default: |
| printf (_(" Unknown opcode %d with operands: "), op_code); |
| |
| if (standard_opcodes != NULL) |
| for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| { |
| printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, |
| &bytes_read, end)), |
| i == 1 ? "" : ", "); |
| data += bytes_read; |
| } |
| putchar ('\n'); |
| break; |
| } |
| } |
| putchar ('\n'); |
| } |
| } |
| |
| return 1; |
| } |
| |
| typedef struct |
| { |
| unsigned char *name; |
| unsigned int directory_index; |
| unsigned int modification_date; |
| unsigned int length; |
| } File_Entry; |
| |
| /* Output a decoded representation of the .debug_line section. */ |
| |
| static int |
| display_debug_lines_decoded (struct dwarf_section *section, |
| unsigned char *data, |
| unsigned char *end) |
| { |
| static DWARF2_Internal_LineInfo saved_linfo; |
| |
| printf (_("Decoded dump of debug contents of section %s:\n\n"), |
| section->name); |
| |
| while (data < end) |
| { |
| /* This loop amounts to one iteration per compilation unit. */ |
| DWARF2_Internal_LineInfo linfo; |
| unsigned char *standard_opcodes; |
| unsigned char *end_of_sequence; |
| int i; |
| File_Entry *file_table = NULL; |
| unsigned int n_files = 0; |
| unsigned char **directory_table = NULL; |
| unsigned int n_directories = 0; |
| |
| if (const_strneq (section->name, ".debug_line.") |
| /* Note: the following does not apply to .debug_line.dwo sections. |
| These are full debug_line sections. */ |
| && strcmp (section->name, ".debug_line.dwo") != 0) |
| { |
| /* See comment in display_debug_lines_raw(). */ |
| end_of_sequence = end; |
| standard_opcodes = NULL; |
| linfo = saved_linfo; |
| /* PR 17531: file: 0522b371. */ |
| if (linfo.li_line_range == 0) |
| { |
| warn (_("Partial .debug_line. section encountered without a prior full .debug_line section\n")); |
| return 0; |
| } |
| reset_state_machine (linfo.li_default_is_stmt); |
| } |
| else |
| { |
| unsigned char *hdrptr; |
| |
| if ((hdrptr = read_debug_line_header (section, data, end, & linfo, |
| & end_of_sequence)) == NULL) |
| return 0; |
| |
| /* PR 17531: file: 0522b371. */ |
| if (linfo.li_line_range == 0) |
| { |
| warn (_("Line range of 0 is invalid, using 1 instead\n")); |
| linfo.li_line_range = 1; |
| } |
| reset_state_machine (linfo.li_default_is_stmt); |
| |
| /* Save a pointer to the contents of the Opcodes table. */ |
| standard_opcodes = hdrptr; |
| |
| /* Traverse the Directory table just to count entries. */ |
| data = standard_opcodes + linfo.li_opcode_base - 1; |
| /* PR 20440 */ |
| if (data >= end) |
| { |
| warn (_("opcode base of %d extends beyond end of section\n"), |
| linfo.li_opcode_base); |
| return 0; |
| } |
| |
| if (*data != 0) |
| { |
| unsigned char *ptr_directory_table = data; |
| |
| while (data < end && *data != 0) |
| { |
| data += strnlen ((char *) data, end - data) + 1; |
| n_directories++; |
| } |
| |
| /* PR 20440 */ |
| if (data >= end) |
| { |
| warn (_("directory table ends unexpectedly\n")); |
| n_directories = 0; |
| break; |
| } |
| |
| /* Go through the directory table again to save the directories. */ |
| directory_table = (unsigned char **) |
| xmalloc (n_directories * sizeof (unsigned char *)); |
| |
| i = 0; |
| while (*ptr_directory_table != 0) |
| { |
| directory_table[i] = ptr_directory_table; |
| ptr_directory_table += strnlen ((char *) ptr_directory_table, |
| ptr_directory_table - end) + 1; |
| i++; |
| } |
| } |
| /* Skip the NUL at the end of the table. */ |
| data++; |
| |
| /* Traverse the File Name table just to count the entries. */ |
| if (data < end && *data != 0) |
| { |
| unsigned char *ptr_file_name_table = data; |
| |
| while (data < end && *data != 0) |
| { |
| unsigned int bytes_read; |
| |
| /* Skip Name, directory index, last modification time and length |
| of file. */ |
| data += strnlen ((char *) data, end - data) + 1; |
| read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| |
| n_files++; |
| } |
| |
| if (data >= end) |
| { |
| warn (_("file table ends unexpectedly\n")); |
| n_files = 0; |
| break; |
| } |
| |
| /* Go through the file table again to save the strings. */ |
| file_table = (File_Entry *) xmalloc (n_files * sizeof (File_Entry)); |
| |
| i = 0; |
| while (*ptr_file_name_table != 0) |
| { |
| unsigned int bytes_read; |
| |
| file_table[i].name = ptr_file_name_table; |
| ptr_file_name_table += strnlen ((char *) ptr_file_name_table, |
| end - ptr_file_name_table) + 1; |
| |
| /* We are not interested in directory, time or size. */ |
| file_table[i].directory_index = read_uleb128 (ptr_file_name_table, |
| & bytes_read, end); |
| ptr_file_name_table += bytes_read; |
| file_table[i].modification_date = read_uleb128 (ptr_file_name_table, |
| & bytes_read, end); |
| ptr_file_name_table += bytes_read; |
| file_table[i].length = read_uleb128 (ptr_file_name_table, & bytes_read, end); |
| ptr_file_name_table += bytes_read; |
| i++; |
| } |
| i = 0; |
| |
| /* Print the Compilation Unit's name and a header. */ |
| if (directory_table == NULL) |
| { |
| printf (_("CU: %s:\n"), file_table[0].name); |
| printf (_("File name Line number Starting address\n")); |
| } |
| else |
| { |
| unsigned int ix = file_table[0].directory_index; |
| const char *directory; |
| |
| if (ix == 0) |
| directory = "."; |
| /* PR 20439 */ |
| else if (n_directories == 0) |
| directory = _("<unknown>"); |
| else if (ix > n_directories) |
| { |
| warn (_("directory index %u > number of directories %u\n"), ix, n_directories); |
| directory = _("<corrupt>"); |
| } |
| else |
| directory = (char *) directory_table[ix - 1]; |
| |
| if (do_wide || strlen (directory) < 76) |
| printf (_("CU: %s/%s:\n"), directory, file_table[0].name); |
| else |
| printf ("%s:\n", file_table[0].name); |
| |
| printf (_("File name Line number Starting address\n")); |
| } |
| } |
| |
| /* Skip the NUL at the end of the table. */ |
| data++; |
| |
| saved_linfo = linfo; |
| } |
| |
| /* This loop iterates through the Dwarf Line Number Program. */ |
| while (data < end_of_sequence) |
| { |
| unsigned char op_code; |
| int adv; |
| unsigned long int uladv; |
| unsigned int bytes_read; |
| int is_special_opcode = 0; |
| |
| op_code = *data++; |
| |
| if (op_code >= linfo.li_opcode_base) |
| { |
| op_code -= linfo.li_opcode_base; |
| uladv = (op_code / linfo.li_line_range); |
| if (linfo.li_max_ops_per_insn == 1) |
| { |
| uladv *= linfo.li_min_insn_length; |
| state_machine_regs.address += uladv; |
| } |
| else |
| { |
| state_machine_regs.address |
| += ((state_machine_regs.op_index + uladv) |
| / linfo.li_max_ops_per_insn) |
| * linfo.li_min_insn_length; |
| state_machine_regs.op_index |
| = (state_machine_regs.op_index + uladv) |
| % linfo.li_max_ops_per_insn; |
| } |
| |
| adv = (op_code % linfo.li_line_range) + linfo.li_line_base; |
| state_machine_regs.line += adv; |
| is_special_opcode = 1; |
| } |
| else switch (op_code) |
| { |
| case DW_LNS_extended_op: |
| { |
| unsigned int ext_op_code_len; |
| unsigned char ext_op_code; |
| unsigned char *op_code_data = data; |
| |
| ext_op_code_len = read_uleb128 (op_code_data, &bytes_read, |
| end_of_sequence); |
| op_code_data += bytes_read; |
| |
| if (ext_op_code_len == 0) |
| { |
| warn (_("Badly formed extended line op encountered!\n")); |
| break; |
| } |
| ext_op_code_len += bytes_read; |
| ext_op_code = *op_code_data++; |
| |
| switch (ext_op_code) |
| { |
| case DW_LNE_end_sequence: |
| reset_state_machine (linfo.li_default_is_stmt); |
| break; |
| case DW_LNE_set_address: |
| SAFE_BYTE_GET_AND_INC (state_machine_regs.address, |
| op_code_data, |
| ext_op_code_len - bytes_read - 1, |
| end); |
| state_machine_regs.op_index = 0; |
| break; |
| case DW_LNE_define_file: |
| { |
| file_table = (File_Entry *) xrealloc |
| (file_table, (n_files + 1) * sizeof (File_Entry)); |
| |
| ++state_machine_regs.last_file_entry; |
| /* Source file name. */ |
| file_table[n_files].name = op_code_data; |
| op_code_data += strlen ((char *) op_code_data) + 1; |
| /* Directory index. */ |
| file_table[n_files].directory_index = |
| read_uleb128 (op_code_data, & bytes_read, |
| end_of_sequence); |
| op_code_data += bytes_read; |
| /* Last modification time. */ |
| file_table[n_files].modification_date = |
| read_uleb128 (op_code_data, & bytes_read, |
| end_of_sequence); |
| op_code_data += bytes_read; |
| /* File length. */ |
| file_table[n_files].length = |
| read_uleb128 (op_code_data, & bytes_read, |
| end_of_sequence); |
| |
| n_files++; |
| break; |
| } |
| case DW_LNE_set_discriminator: |
| case DW_LNE_HP_set_sequence: |
| /* Simply ignored. */ |
| break; |
| |
| default: |
| printf (_("UNKNOWN (%u): length %d\n"), |
| ext_op_code, ext_op_code_len - bytes_read); |
| break; |
| } |
| data += ext_op_code_len; |
| break; |
| } |
| case DW_LNS_copy: |
| break; |
| |
| case DW_LNS_advance_pc: |
| uladv = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| if (linfo.li_max_ops_per_insn == 1) |
| { |
| uladv *= linfo.li_min_insn_length; |
| state_machine_regs.address += uladv; |
| } |
| else |
| { |
| state_machine_regs.address |
| += ((state_machine_regs.op_index + uladv) |
| / linfo.li_max_ops_per_insn) |
| * linfo.li_min_insn_length; |
| state_machine_regs.op_index |
| = (state_machine_regs.op_index + uladv) |
| % linfo.li_max_ops_per_insn; |
| } |
| break; |
| |
| case DW_LNS_advance_line: |
| adv = read_sleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| state_machine_regs.line += adv; |
| break; |
| |
| case DW_LNS_set_file: |
| adv = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| state_machine_regs.file = adv; |
| |
| { |
| unsigned file = state_machine_regs.file - 1; |
| unsigned dir; |
| |
| if (file_table == NULL || n_files == 0) |
| printf (_("\n [Use file table entry %d]\n"), file); |
| /* PR 20439 */ |
| else if (file >= n_files) |
| { |
| warn (_("file index %u > number of files %u\n"), file + 1, n_files); |
| printf (_("\n <over large file table index %u>"), file); |
| } |
| else if ((dir = file_table[file].directory_index) == 0) |
| /* If directory index is 0, that means current directory. */ |
| printf ("\n./%s:[++]\n", file_table[file].name); |
| else if (directory_table == NULL || n_directories == 0) |
| printf (_("\n [Use file %s in directory table entry %d]\n"), |
| file_table[file].name, dir); |
| /* PR 20439 */ |
| else if (dir > n_directories) |
| { |
| warn (_("directory index %u > number of directories %u\n"), dir, n_directories); |
| printf (_("\n <over large directory table entry %u>\n"), dir); |
| } |
| else |
| printf ("\n%s/%s:\n", |
| /* The directory index starts counting at 1. */ |
| directory_table[dir - 1], file_table[file].name); |
| } |
| break; |
| |
| case DW_LNS_set_column: |
| uladv = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| state_machine_regs.column = uladv; |
| break; |
| |
| case DW_LNS_negate_stmt: |
| adv = state_machine_regs.is_stmt; |
| adv = ! adv; |
| state_machine_regs.is_stmt = adv; |
| break; |
| |
| case DW_LNS_set_basic_block: |
| state_machine_regs.basic_block = 1; |
| break; |
| |
| case DW_LNS_const_add_pc: |
| uladv = ((255 - linfo.li_opcode_base) / linfo.li_line_range); |
| if (linfo.li_max_ops_per_insn == 1) |
| { |
| uladv *= linfo.li_min_insn_length; |
| state_machine_regs.address += uladv; |
| } |
| else |
| { |
| state_machine_regs.address |
| += ((state_machine_regs.op_index + uladv) |
| / linfo.li_max_ops_per_insn) |
| * linfo.li_min_insn_length; |
| state_machine_regs.op_index |
| = (state_machine_regs.op_index + uladv) |
| % linfo.li_max_ops_per_insn; |
| } |
| break; |
| |
| case DW_LNS_fixed_advance_pc: |
| SAFE_BYTE_GET_AND_INC (uladv, data, 2, end); |
| state_machine_regs.address += uladv; |
| state_machine_regs.op_index = 0; |
| break; |
| |
| case DW_LNS_set_prologue_end: |
| break; |
| |
| case DW_LNS_set_epilogue_begin: |
| break; |
| |
| case DW_LNS_set_isa: |
| uladv = read_uleb128 (data, & bytes_read, end); |
| data += bytes_read; |
| printf (_(" Set ISA to %lu\n"), uladv); |
| break; |
| |
| default: |
| printf (_(" Unknown opcode %d with operands: "), op_code); |
| |
| if (standard_opcodes != NULL) |
| for (i = standard_opcodes[op_code - 1]; i > 0 ; --i) |
| { |
| printf ("0x%s%s", dwarf_vmatoa ("x", read_uleb128 (data, |
| &bytes_read, end)), |
| i == 1 ? "" : ", "); |
| data += bytes_read; |
| } |
| putchar ('\n'); |
| break; |
| } |
| |
| /* Only Special opcodes, DW_LNS_copy and DW_LNE_end_sequence adds a row |
| to the DWARF address/line matrix. */ |
| if ((is_special_opcode) || (op_code == DW_LNE_end_sequence) |
| || (op_code == DW_LNS_copy)) |
| { |
| const unsigned int MAX_FILENAME_LENGTH = 35; |
| char *fileName; |
| char *newFileName = NULL; |
| size_t fileNameLength; |
| |
| if (file_table) |
| { |
| unsigned indx = state_machine_regs.file - 1; |
| /* PR 20439 */ |
| if (indx >= n_files) |
| { |
| warn (_("corrupt file index %u encountered\n"), indx); |
| fileName = _("<corrupt>"); |
| } |
| else |
| fileName = (char *) file_table[indx].name; |
| } |
| else |
| fileName = _("<unknown>"); |
| |
| fileNameLength = strlen (fileName); |
| |
| if ((fileNameLength > MAX_FILENAME_LENGTH) && (!do_wide)) |
| { |
| newFileName = (char *) xmalloc (MAX_FILENAME_LENGTH + 1); |
| /* Truncate file name */ |
| strncpy (newFileName, |
| fileName + fileNameLength - MAX_FILENAME_LENGTH, |
| MAX_FILENAME_LENGTH + 1); |
| } |
| else |
| { |
| newFileName = (char *) xmalloc (fileNameLength + 1); |
| strncpy (newFileName, fileName, fileNameLength + 1); |
| } |
| |
| if (!do_wide || (fileNameLength <= MAX_FILENAME_LENGTH)) |
| { |
| if (linfo.li_max_ops_per_insn == 1) |
| printf ("%-35s %11d %#18" DWARF_VMA_FMT "x\n", |
| newFileName, state_machine_regs.line, |
| state_machine_regs.address); |
| else |
| printf ("%-35s %11d %#18" DWARF_VMA_FMT "x[%d]\n", |
| newFileName, state_machine_regs.line, |
| state_machine_regs.address, |
| state_machine_regs.op_index); |
| } |
| else |
| { |
| if (linfo.li_max_ops_per_insn == 1) |
| printf ("%s %11d %#18" DWARF_VMA_FMT "x\n", |
| newFileName, state_machine_regs.line, |
| state_machine_regs.address); |
| else |
| printf ("%s %11d %#18" DWARF_VMA_FMT "x[%d]\n", |
| newFileName, state_machine_regs.line, |
| state_machine_regs.address, |
| state_machine_regs.op_index); |
| } |
| |
| if (op_code == DW_LNE_end_sequence) |
| printf ("\n"); |
| |
| free (newFileName); |
| } |
| } |
| |
| if (file_table) |
| { |
| free (file_table); |
| file_table = NULL; |
| n_files = 0; |
| } |
| |
| if (directory_table) |
| { |
| free (directory_table); |
| directory_table = NULL; |
| n_directories = 0; |
| } |
| |
| putchar ('\n'); |
| } |
| |
| return 1; |
| } |
| |
| static int |
| display_debug_lines (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) |
| { |
| unsigned char *data = section->start; |
| unsigned char *end = data + section->size; |
| int retValRaw = 1; |
| int retValDecoded = 1; |
| |
| if (do_debug_lines == 0) |
| do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| |
| if (do_debug_lines & FLAG_DEBUG_LINES_RAW) |
| retValRaw = display_debug_lines_raw (section, data, end); |
| |
| if (do_debug_lines & FLAG_DEBUG_LINES_DECODED) |
| retValDecoded = display_debug_lines_decoded (section, data, end); |
| |
| if (!retValRaw || !retValDecoded) |
| return 0; |
| |
| return 1; |
| } |
| |
| static debug_info * |
| find_debug_info_for_offset (unsigned long offset) |
| { |
| unsigned int i; |
| |
| if (num_debug_info_entries == DEBUG_INFO_UNAVAILABLE) |
| return NULL; |
| |
| for (i = 0; i < num_debug_info_entries; i++) |
| if (debug_information[i].cu_offset == offset) |
| return debug_information + i; |
| |
| return NULL; |
| } |
| |
| static const char * |
| get_gdb_index_symbol_kind_name (gdb_index_symbol_kind kind) |
| { |
| /* See gdb/gdb-index.h. */ |
| static const char * const kinds[] = |
| { |
| N_ ("no info"), |
| N_ ("type"), |
| N_ ("variable"), |
| N_ ("function"), |
| N_ ("other"), |
| N_ ("unused5"), |
| N_ ("unused6"), |
| N_ ("unused7") |
| }; |
| |
| return _ (kinds[kind]); |
| } |
| |
| static int |
| display_debug_pubnames_worker (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED, |
| int is_gnu) |
| { |
| DWARF2_Internal_PubNames names; |
| unsigned char *start = section->start; |
| unsigned char *end = start + section->size; |
| |
| /* It does not matter if this load fails, |
| we test for that later on. */ |
| load_debug_info (file); |
| |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| |
| while (start < end) |
| { |
| unsigned char *data; |
| unsigned char *adr; |
| dwarf_vma offset; |
| unsigned int offset_size, initial_length_size; |
| |
| data = start; |
| |
| SAFE_BYTE_GET_AND_INC (names.pn_length, data, 4, end); |
| if (names.pn_length == 0xffffffff) |
| { |
| SAFE_BYTE_GET_AND_INC (names.pn_length, data, 8, end); |
| offset_size = 8; |
| initial_length_size = 12; |
| } |
| else |
| { |
| offset_size = 4; |
| initial_length_size = 4; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (names.pn_version, data, 2, end); |
| SAFE_BYTE_GET_AND_INC (names.pn_offset, data, offset_size, end); |
| |
| if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| && num_debug_info_entries > 0 |
| && find_debug_info_for_offset (names.pn_offset) == NULL) |
| warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| (unsigned long) names.pn_offset, section->name); |
| |
| SAFE_BYTE_GET_AND_INC (names.pn_size, data, offset_size, end); |
| |
| adr = start + names.pn_length + initial_length_size; |
| /* PR 17531: file: 7615b6b2. */ |
| if ((dwarf_signed_vma) names.pn_length < 0 |
| /* PR 17531: file: a5dbeaa7. */ |
| || adr < start) |
| { |
| warn (_("Negative length for public name: 0x%lx\n"), (long) names.pn_length); |
| start = end; |
| } |
| else |
| start = adr; |
| |
| printf (_(" Length: %ld\n"), |
| (long) names.pn_length); |
| printf (_(" Version: %d\n"), |
| names.pn_version); |
| printf (_(" Offset into .debug_info section: 0x%lx\n"), |
| (unsigned long) names.pn_offset); |
| printf (_(" Size of area in .debug_info section: %ld\n"), |
| (long) names.pn_size); |
| |
| if (names.pn_version != 2 && names.pn_version != 3) |
| { |
| static int warned = 0; |
| |
| if (! warned) |
| { |
| warn (_("Only DWARF 2 and 3 pubnames are currently supported\n")); |
| warned = 1; |
| } |
| |
| continue; |
| } |
| |
| if (is_gnu) |
| printf (_("\n Offset Kind Name\n")); |
| else |
| printf (_("\n Offset\tName\n")); |
| |
| do |
| { |
| bfd_size_type maxprint; |
| |
| SAFE_BYTE_GET (offset, data, offset_size, end); |
| |
| if (offset != 0) |
| { |
| data += offset_size; |
| if (data >= end) |
| break; |
| maxprint = (end - data) - 1; |
| |
| if (is_gnu) |
| { |
| unsigned int kind_data; |
| gdb_index_symbol_kind kind; |
| const char *kind_name; |
| int is_static; |
| |
| SAFE_BYTE_GET (kind_data, data, 1, end); |
| data++; |
| maxprint --; |
| /* GCC computes the kind as the upper byte in the CU index |
| word, and then right shifts it by the CU index size. |
| Left shift KIND to where the gdb-index.h accessor macros |
| can use it. */ |
| kind_data <<= GDB_INDEX_CU_BITSIZE; |
| kind = GDB_INDEX_SYMBOL_KIND_VALUE (kind_data); |
| kind_name = get_gdb_index_symbol_kind_name (kind); |
| is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (kind_data); |
| printf (" %-6lx %s,%-10s %.*s\n", |
| (unsigned long) offset, is_static ? _("s") : _("g"), |
| kind_name, (int) maxprint, data); |
| } |
| else |
| printf (" %-6lx\t%.*s\n", |
| (unsigned long) offset, (int) maxprint, data); |
| |
| data += strnlen ((char *) data, maxprint) + 1; |
| if (data >= end) |
| break; |
| } |
| } |
| while (offset != 0); |
| } |
| |
| printf ("\n"); |
| return 1; |
| } |
| |
| static int |
| display_debug_pubnames (struct dwarf_section *section, void *file) |
| { |
| return display_debug_pubnames_worker (section, file, 0); |
| } |
| |
| static int |
| display_debug_gnu_pubnames (struct dwarf_section *section, void *file) |
| { |
| return display_debug_pubnames_worker (section, file, 1); |
| } |
| |
| static int |
| display_debug_macinfo (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| unsigned char *start = section->start; |
| unsigned char *end = start + section->size; |
| unsigned char *curr = start; |
| unsigned int bytes_read; |
| enum dwarf_macinfo_record_type op; |
| |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| |
| while (curr < end) |
| { |
| unsigned int lineno; |
| const unsigned char *string; |
| |
| op = (enum dwarf_macinfo_record_type) *curr; |
| curr++; |
| |
| switch (op) |
| { |
| case DW_MACINFO_start_file: |
| { |
| unsigned int filenum; |
| |
| lineno = read_uleb128 (curr, & bytes_read, end); |
| curr += bytes_read; |
| filenum = read_uleb128 (curr, & bytes_read, end); |
| curr += bytes_read; |
| |
| printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"), |
| lineno, filenum); |
| } |
| break; |
| |
| case DW_MACINFO_end_file: |
| printf (_(" DW_MACINFO_end_file\n")); |
| break; |
| |
| case DW_MACINFO_define: |
| lineno = read_uleb128 (curr, & bytes_read, end); |
| curr += bytes_read; |
| string = curr; |
| curr += strnlen ((char *) string, end - string) + 1; |
| printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"), |
| lineno, string); |
| break; |
| |
| case DW_MACINFO_undef: |
| lineno = read_uleb128 (curr, & bytes_read, end); |
| curr += bytes_read; |
| string = curr; |
| curr += strnlen ((char *) string, end - string) + 1; |
| printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"), |
| lineno, string); |
| break; |
| |
| case DW_MACINFO_vendor_ext: |
| { |
| unsigned int constant; |
| |
| constant = read_uleb128 (curr, & bytes_read, end); |
| curr += bytes_read; |
| string = curr; |
| curr += strnlen ((char *) string, end - string) + 1; |
| printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"), |
| constant, string); |
| } |
| break; |
| } |
| } |
| |
| return 1; |
| } |
| |
| /* Given LINE_OFFSET into the .debug_line section, attempt to return |
| filename and dirname corresponding to file name table entry with index |
| FILEIDX. Return NULL on failure. */ |
| |
| static unsigned char * |
| get_line_filename_and_dirname (dwarf_vma line_offset, |
| dwarf_vma fileidx, |
| unsigned char **dir_name) |
| { |
| struct dwarf_section *section = &debug_displays [line].section; |
| unsigned char *hdrptr, *dirtable, *file_name; |
| unsigned int offset_size, initial_length_size; |
| unsigned int version, opcode_base, bytes_read; |
| dwarf_vma length, diridx; |
| const unsigned char * end; |
| |
| *dir_name = NULL; |
| if (section->start == NULL |
| || line_offset >= section->size |
| || fileidx == 0) |
| return NULL; |
| |
| hdrptr = section->start + line_offset; |
| end = section->start + section->size; |
| |
| SAFE_BYTE_GET_AND_INC (length, hdrptr, 4, end); |
| if (length == 0xffffffff) |
| { |
| /* This section is 64-bit DWARF 3. */ |
| SAFE_BYTE_GET_AND_INC (length, hdrptr, 8, end); |
| offset_size = 8; |
| initial_length_size = 12; |
| } |
| else |
| { |
| offset_size = 4; |
| initial_length_size = 4; |
| } |
| if (length + initial_length_size > section->size) |
| return NULL; |
| |
| SAFE_BYTE_GET_AND_INC (version, hdrptr, 2, end); |
| if (version != 2 && version != 3 && version != 4) |
| return NULL; |
| hdrptr += offset_size + 1;/* Skip prologue_length and min_insn_length. */ |
| if (version >= 4) |
| hdrptr++; /* Skip max_ops_per_insn. */ |
| hdrptr += 3; /* Skip default_is_stmt, line_base, line_range. */ |
| |
| SAFE_BYTE_GET_AND_INC (opcode_base, hdrptr, 1, end); |
| if (opcode_base == 0) |
| return NULL; |
| |
| hdrptr += opcode_base - 1; |
| dirtable = hdrptr; |
| /* Skip over dirname table. */ |
| while (*hdrptr != '\0') |
| hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| hdrptr++; /* Skip the NUL at the end of the table. */ |
| /* Now skip over preceding filename table entries. */ |
| for (; *hdrptr != '\0' && fileidx > 1; fileidx--) |
| { |
| hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| read_uleb128 (hdrptr, &bytes_read, end); |
| hdrptr += bytes_read; |
| read_uleb128 (hdrptr, &bytes_read, end); |
| hdrptr += bytes_read; |
| read_uleb128 (hdrptr, &bytes_read, end); |
| hdrptr += bytes_read; |
| } |
| if (hdrptr == end || *hdrptr == '\0') |
| return NULL; |
| file_name = hdrptr; |
| hdrptr += strnlen ((char *) hdrptr, end - hdrptr) + 1; |
| diridx = read_uleb128 (hdrptr, &bytes_read, end); |
| if (diridx == 0) |
| return file_name; |
| for (; *dirtable != '\0' && diridx > 1; diridx--) |
| dirtable += strnlen ((char *) dirtable, end - dirtable) + 1; |
| if (*dirtable == '\0') |
| return NULL; |
| *dir_name = dirtable; |
| return file_name; |
| } |
| |
| static int |
| display_debug_macro (struct dwarf_section *section, |
| void *file) |
| { |
| unsigned char *start = section->start; |
| unsigned char *end = start + section->size; |
| unsigned char *curr = start; |
| unsigned char *extended_op_buf[256]; |
| unsigned int bytes_read; |
| |
| load_debug_section (str, file); |
| load_debug_section (line, file); |
| |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| |
| while (curr < end) |
| { |
| unsigned int lineno, version, flags; |
| unsigned int offset_size = 4; |
| const unsigned char *string; |
| dwarf_vma line_offset = 0, sec_offset = curr - start, offset; |
| unsigned char **extended_ops = NULL; |
| |
| SAFE_BYTE_GET_AND_INC (version, curr, 2, end); |
| if (version != 4) |
| { |
| error (_("Only GNU extension to DWARF 4 of %s is currently supported.\n"), |
| section->name); |
| return 0; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (flags, curr, 1, end); |
| if (flags & 1) |
| offset_size = 8; |
| printf (_(" Offset: 0x%lx\n"), |
| (unsigned long) sec_offset); |
| printf (_(" Version: %d\n"), version); |
| printf (_(" Offset size: %d\n"), offset_size); |
| if (flags & 2) |
| { |
| SAFE_BYTE_GET_AND_INC (line_offset, curr, offset_size, end); |
| printf (_(" Offset into .debug_line: 0x%lx\n"), |
| (unsigned long) line_offset); |
| } |
| if (flags & 4) |
| { |
| unsigned int i, count, op; |
| dwarf_vma nargs, n; |
| |
| SAFE_BYTE_GET_AND_INC (count, curr, 1, end); |
| |
| memset (extended_op_buf, 0, sizeof (extended_op_buf)); |
| extended_ops = extended_op_buf; |
| if (count) |
| { |
| printf (_(" Extension opcode arguments:\n")); |
| for (i = 0; i < count; i++) |
| { |
| SAFE_BYTE_GET_AND_INC (op, curr, 1, end); |
| extended_ops[op] = curr; |
| nargs = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| if (nargs == 0) |
| printf (_(" DW_MACRO_GNU_%02x has no arguments\n"), op); |
| else |
| { |
| printf (_(" DW_MACRO_GNU_%02x arguments: "), op); |
| for (n = 0; n < nargs; n++) |
| { |
| unsigned int form; |
| |
| SAFE_BYTE_GET_AND_INC (form, curr, 1, end); |
| printf ("%s%s", get_FORM_name (form), |
| n == nargs - 1 ? "\n" : ", "); |
| switch (form) |
| { |
| case DW_FORM_data1: |
| case DW_FORM_data2: |
| case DW_FORM_data4: |
| case DW_FORM_data8: |
| case DW_FORM_sdata: |
| case DW_FORM_udata: |
| case DW_FORM_block: |
| case DW_FORM_block1: |
| case DW_FORM_block2: |
| case DW_FORM_block4: |
| case DW_FORM_flag: |
| case DW_FORM_string: |
| case DW_FORM_strp: |
| case DW_FORM_sec_offset: |
| break; |
| default: |
| error (_("Invalid extension opcode form %s\n"), |
| get_FORM_name (form)); |
| return 0; |
| } |
| } |
| } |
| } |
| } |
| } |
| printf ("\n"); |
| |
| while (1) |
| { |
| unsigned int op; |
| |
| if (curr >= end) |
| { |
| error (_(".debug_macro section not zero terminated\n")); |
| return 0; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (op, curr, 1, end); |
| if (op == 0) |
| break; |
| |
| switch (op) |
| { |
| case DW_MACRO_GNU_start_file: |
| { |
| unsigned int filenum; |
| unsigned char *file_name = NULL, *dir_name = NULL; |
| |
| lineno = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| filenum = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| |
| if ((flags & 2) == 0) |
| error (_("DW_MACRO_GNU_start_file used, but no .debug_line offset provided.\n")); |
| else |
| file_name |
| = get_line_filename_and_dirname (line_offset, filenum, |
| &dir_name); |
| if (file_name == NULL) |
| printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d\n"), |
| lineno, filenum); |
| else |
| printf (_(" DW_MACRO_GNU_start_file - lineno: %d filenum: %d filename: %s%s%s\n"), |
| lineno, filenum, |
| dir_name != NULL ? (const char *) dir_name : "", |
| dir_name != NULL ? "/" : "", file_name); |
| } |
| break; |
| |
| case DW_MACRO_GNU_end_file: |
| printf (_(" DW_MACRO_GNU_end_file\n")); |
| break; |
| |
| case DW_MACRO_GNU_define: |
| lineno = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| string = curr; |
| curr += strnlen ((char *) string, end - string) + 1; |
| printf (_(" DW_MACRO_GNU_define - lineno : %d macro : %s\n"), |
| lineno, string); |
| break; |
| |
| case DW_MACRO_GNU_undef: |
| lineno = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| string = curr; |
| curr += strnlen ((char *) string, end - string) + 1; |
| printf (_(" DW_MACRO_GNU_undef - lineno : %d macro : %s\n"), |
| lineno, string); |
| break; |
| |
| case DW_MACRO_GNU_define_indirect: |
| lineno = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| string = fetch_indirect_string (offset); |
| printf (_(" DW_MACRO_GNU_define_indirect - lineno : %d macro : %s\n"), |
| lineno, string); |
| break; |
| |
| case DW_MACRO_GNU_undef_indirect: |
| lineno = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| string = fetch_indirect_string (offset); |
| printf (_(" DW_MACRO_GNU_undef_indirect - lineno : %d macro : %s\n"), |
| lineno, string); |
| break; |
| |
| case DW_MACRO_GNU_transparent_include: |
| SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| printf (_(" DW_MACRO_GNU_transparent_include - offset : 0x%lx\n"), |
| (unsigned long) offset); |
| break; |
| |
| case DW_MACRO_GNU_define_indirect_alt: |
| lineno = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| printf (_(" DW_MACRO_GNU_define_indirect_alt - lineno : %d macro offset : 0x%lx\n"), |
| lineno, (unsigned long) offset); |
| break; |
| |
| case DW_MACRO_GNU_undef_indirect_alt: |
| lineno = read_uleb128 (curr, &bytes_read, end); |
| curr += bytes_read; |
| SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| printf (_(" DW_MACRO_GNU_undef_indirect_alt - lineno : %d macro offset : 0x%lx\n"), |
| lineno, (unsigned long) offset); |
| break; |
| |
| case DW_MACRO_GNU_transparent_include_alt: |
| SAFE_BYTE_GET_AND_INC (offset, curr, offset_size, end); |
| printf (_(" DW_MACRO_GNU_transparent_include_alt - offset : 0x%lx\n"), |
| (unsigned long) offset); |
| break; |
| |
| default: |
| if (extended_ops == NULL || extended_ops[op] == NULL) |
| { |
| error (_(" Unknown macro opcode %02x seen\n"), op); |
| return 0; |
| } |
| else |
| { |
| /* Skip over unhandled opcodes. */ |
| dwarf_vma nargs, n; |
| unsigned char *desc = extended_ops[op]; |
| nargs = read_uleb128 (desc, &bytes_read, end); |
| desc += bytes_read; |
| if (nargs == 0) |
| { |
| printf (_(" DW_MACRO_GNU_%02x\n"), op); |
| break; |
| } |
| printf (_(" DW_MACRO_GNU_%02x -"), op); |
| for (n = 0; n < nargs; n++) |
| { |
| int val; |
| |
| SAFE_BYTE_GET_AND_INC (val, desc, 1, end); |
| curr |
| = read_and_display_attr_value (0, val, |
| curr, end, 0, 0, offset_size, |
| version, NULL, 0, NULL, |
| NULL); |
| if (n != nargs - 1) |
| printf (","); |
| } |
| printf ("\n"); |
| } |
| break; |
| } |
| } |
| |
| printf ("\n"); |
| } |
| |
| return 1; |
| } |
| |
| static int |
| display_debug_abbrev (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| abbrev_entry *entry; |
| unsigned char *start = section->start; |
| unsigned char *end = start + section->size; |
| |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| |
| do |
| { |
| unsigned char *last; |
| |
| free_abbrevs (); |
| |
| last = start; |
| start = process_abbrev_section (start, end); |
| |
| if (first_abbrev == NULL) |
| continue; |
| |
| printf (_(" Number TAG (0x%lx)\n"), (long) (last - section->start)); |
| |
| for (entry = first_abbrev; entry; entry = entry->next) |
| { |
| abbrev_attr *attr; |
| |
| printf (" %ld %s [%s]\n", |
| entry->entry, |
| get_TAG_name (entry->tag), |
| entry->children ? _("has children") : _("no children")); |
| |
| for (attr = entry->first_attr; attr; attr = attr->next) |
| printf (" %-18s %s\n", |
| get_AT_name (attr->attribute), |
| get_FORM_name (attr->form)); |
| } |
| } |
| while (start); |
| |
| printf ("\n"); |
| |
| return 1; |
| } |
| |
| /* Return true when ADDR is the maximum address, when addresses are |
| POINTER_SIZE bytes long. */ |
| |
| static bfd_boolean |
| is_max_address (dwarf_vma addr, unsigned int pointer_size) |
| { |
| dwarf_vma mask = ~(~(dwarf_vma) 1 << (pointer_size * 8 - 1)); |
| return ((addr & mask) == mask); |
| } |
| |
| /* Display a location list from a normal (ie, non-dwo) .debug_loc section. */ |
| |
| static void |
| display_loc_list (struct dwarf_section *section, |
| unsigned char **start_ptr, |
| unsigned int debug_info_entry, |
| unsigned long offset, |
| unsigned long base_address, |
| int has_frame_base) |
| { |
| unsigned char *start = *start_ptr; |
| unsigned char *section_end = section->start + section->size; |
| unsigned long cu_offset; |
| unsigned int pointer_size; |
| unsigned int offset_size; |
| int dwarf_version; |
| |
| dwarf_vma begin; |
| dwarf_vma end; |
| unsigned short length; |
| int need_frame_base; |
| |
| if (debug_info_entry >= num_debug_info_entries) |
| { |
| warn (_("No debug information available for loc lists of entry: %u\n"), |
| debug_info_entry); |
| return; |
| } |
| |
| cu_offset = debug_information [debug_info_entry].cu_offset; |
| pointer_size = debug_information [debug_info_entry].pointer_size; |
| offset_size = debug_information [debug_info_entry].offset_size; |
| dwarf_version = debug_information [debug_info_entry].dwarf_version; |
| |
| if (pointer_size < 2 || pointer_size > 8) |
| { |
| warn (_("Invalid pointer size (%d) in debug info for entry %d\n"), |
| pointer_size, debug_info_entry); |
| return; |
| } |
| |
| while (1) |
| { |
| unsigned long off = offset + (start - *start_ptr); |
| |
| if (start + 2 * pointer_size > section_end) |
| { |
| warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| offset); |
| break; |
| } |
| |
| printf (" %8.8lx ", off); |
| |
| SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end); |
| SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end); |
| |
| if (begin == 0 && end == 0) |
| { |
| /* PR 18374: In a object file we can have a location list that |
| starts with a begin and end of 0 because there are relocations |
| that need to be applied to the addresses. Actually applying |
| the relocations now does not help as they will probably resolve |
| to 0, since the object file has not been fully linked. Real |
| end of list markers will not have any relocations against them. */ |
| if (! reloc_at (section, off) |
| && ! reloc_at (section, off + pointer_size)) |
| { |
| printf (_("<End of list>\n")); |
| break; |
| } |
| } |
| |
| /* Check base address specifiers. */ |
| if (is_max_address (begin, pointer_size) |
| && !is_max_address (end, pointer_size)) |
| { |
| base_address = end; |
| print_dwarf_vma (begin, pointer_size); |
| print_dwarf_vma (end, pointer_size); |
| printf (_("(base address)\n")); |
| continue; |
| } |
| |
| if (start + 2 > section_end) |
| { |
| warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| offset); |
| break; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); |
| |
| if (start + length > section_end) |
| { |
| warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| offset); |
| break; |
| } |
| |
| print_dwarf_vma (begin + base_address, pointer_size); |
| print_dwarf_vma (end + base_address, pointer_size); |
| |
| putchar ('('); |
| need_frame_base = decode_location_expression (start, |
| pointer_size, |
| offset_size, |
| dwarf_version, |
| length, |
| cu_offset, section); |
| putchar (')'); |
| |
| if (need_frame_base && !has_frame_base) |
| printf (_(" [without DW_AT_frame_base]")); |
| |
| if (begin == end) |
| fputs (_(" (start == end)"), stdout); |
| else if (begin > end) |
| fputs (_(" (start > end)"), stdout); |
| |
| putchar ('\n'); |
| |
| start += length; |
| } |
| |
| *start_ptr = start; |
| } |
| |
| /* Print a .debug_addr table index in decimal, surrounded by square brackets, |
| right-adjusted in a field of length LEN, and followed by a space. */ |
| |
| static void |
| print_addr_index (unsigned int idx, unsigned int len) |
| { |
| static char buf[15]; |
| snprintf (buf, sizeof (buf), "[%d]", idx); |
| printf ("%*s ", len, buf); |
| } |
| |
| /* Display a location list from a .dwo section. It uses address indexes rather |
| than embedded addresses. This code closely follows display_loc_list, but the |
| two are sufficiently different that combining things is very ugly. */ |
| |
| static void |
| display_loc_list_dwo (struct dwarf_section *section, |
| unsigned char **start_ptr, |
| unsigned int debug_info_entry, |
| unsigned long offset, |
| int has_frame_base) |
| { |
| unsigned char *start = *start_ptr; |
| unsigned char *section_end = section->start + section->size; |
| unsigned long cu_offset; |
| unsigned int pointer_size; |
| unsigned int offset_size; |
| int dwarf_version; |
| int entry_type; |
| unsigned short length; |
| int need_frame_base; |
| unsigned int idx; |
| unsigned int bytes_read; |
| |
| if (debug_info_entry >= num_debug_info_entries) |
| { |
| warn (_("No debug information for loc lists of entry: %u\n"), |
| debug_info_entry); |
| return; |
| } |
| |
| cu_offset = debug_information [debug_info_entry].cu_offset; |
| pointer_size = debug_information [debug_info_entry].pointer_size; |
| offset_size = debug_information [debug_info_entry].offset_size; |
| dwarf_version = debug_information [debug_info_entry].dwarf_version; |
| |
| if (pointer_size < 2 || pointer_size > 8) |
| { |
| warn (_("Invalid pointer size (%d) in debug info for entry %d\n"), |
| pointer_size, debug_info_entry); |
| return; |
| } |
| |
| while (1) |
| { |
| printf (" %8.8lx ", offset + (start - *start_ptr)); |
| |
| if (start >= section_end) |
| { |
| warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| offset); |
| break; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (entry_type, start, 1, section_end); |
| switch (entry_type) |
| { |
| case 0: /* A terminating entry. */ |
| *start_ptr = start; |
| printf (_("<End of list>\n")); |
| return; |
| case 1: /* A base-address entry. */ |
| idx = read_uleb128 (start, &bytes_read, section_end); |
| start += bytes_read; |
| print_addr_index (idx, 8); |
| printf (" "); |
| printf (_("(base address selection entry)\n")); |
| continue; |
| case 2: /* A start/end entry. */ |
| idx = read_uleb128 (start, &bytes_read, section_end); |
| start += bytes_read; |
| print_addr_index (idx, 8); |
| idx = read_uleb128 (start, &bytes_read, section_end); |
| start += bytes_read; |
| print_addr_index (idx, 8); |
| break; |
| case 3: /* A start/length entry. */ |
| idx = read_uleb128 (start, &bytes_read, section_end); |
| start += bytes_read; |
| print_addr_index (idx, 8); |
| SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| printf ("%08x ", idx); |
| break; |
| case 4: /* An offset pair entry. */ |
| SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| printf ("%08x ", idx); |
| SAFE_BYTE_GET_AND_INC (idx, start, 4, section_end); |
| printf ("%08x ", idx); |
| break; |
| default: |
| warn (_("Unknown location list entry type 0x%x.\n"), entry_type); |
| *start_ptr = start; |
| return; |
| } |
| |
| if (start + 2 > section_end) |
| { |
| warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| offset); |
| break; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (length, start, 2, section_end); |
| if (start + length > section_end) |
| { |
| warn (_("Location list starting at offset 0x%lx is not terminated.\n"), |
| offset); |
| break; |
| } |
| |
| putchar ('('); |
| need_frame_base = decode_location_expression (start, |
| pointer_size, |
| offset_size, |
| dwarf_version, |
| length, |
| cu_offset, section); |
| putchar (')'); |
| |
| if (need_frame_base && !has_frame_base) |
| printf (_(" [without DW_AT_frame_base]")); |
| |
| putchar ('\n'); |
| |
| start += length; |
| } |
| |
| *start_ptr = start; |
| } |
| |
| /* Sort array of indexes in ascending order of loc_offsets[idx]. */ |
| |
| static dwarf_vma *loc_offsets; |
| |
| static int |
| loc_offsets_compar (const void *ap, const void *bp) |
| { |
| dwarf_vma a = loc_offsets[*(const unsigned int *) ap]; |
| dwarf_vma b = loc_offsets[*(const unsigned int *) bp]; |
| |
| return (a > b) - (b > a); |
| } |
| |
| static int |
| display_debug_loc (struct dwarf_section *section, void *file) |
| { |
| unsigned char *start = section->start; |
| unsigned long bytes; |
| unsigned char *section_begin = start; |
| unsigned int num_loc_list = 0; |
| unsigned long last_offset = 0; |
| unsigned int first = 0; |
| unsigned int i; |
| unsigned int j; |
| int seen_first_offset = 0; |
| int locs_sorted = 1; |
| unsigned char *next; |
| unsigned int *array = NULL; |
| const char *suffix = strrchr (section->name, '.'); |
| int is_dwo = 0; |
| |
| if (suffix && strcmp (suffix, ".dwo") == 0) |
| is_dwo = 1; |
| |
| bytes = section->size; |
| |
| if (bytes == 0) |
| { |
| printf (_("\nThe %s section is empty.\n"), section->name); |
| return 0; |
| } |
| |
| if (load_debug_info (file) == 0) |
| { |
| warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| section->name); |
| return 0; |
| } |
| |
| /* Check the order of location list in .debug_info section. If |
| offsets of location lists are in the ascending order, we can |
| use `debug_information' directly. */ |
| for (i = 0; i < num_debug_info_entries; i++) |
| { |
| unsigned int num; |
| |
| num = debug_information [i].num_loc_offsets; |
| if (num > num_loc_list) |
| num_loc_list = num; |
| |
| /* Check if we can use `debug_information' directly. */ |
| if (locs_sorted && num != 0) |
| { |
| if (!seen_first_offset) |
| { |
| /* This is the first location list. */ |
| last_offset = debug_information [i].loc_offsets [0]; |
| first = i; |
| seen_first_offset = 1; |
| j = 1; |
| } |
| else |
| j = 0; |
| |
| for (; j < num; j++) |
| { |
| if (last_offset > |
| debug_information [i].loc_offsets [j]) |
| { |
| locs_sorted = 0; |
| break; |
| } |
| last_offset = debug_information [i].loc_offsets [j]; |
| } |
| } |
| } |
| |
| if (!seen_first_offset) |
| error (_("No location lists in .debug_info section!\n")); |
| |
| if (debug_information [first].num_loc_offsets > 0 |
| && debug_information [first].loc_offsets [0] != 0) |
| warn (_("Location lists in %s section start at 0x%s\n"), |
| section->name, |
| dwarf_vmatoa ("x", debug_information [first].loc_offsets [0])); |
| |
| if (!locs_sorted) |
| array = (unsigned int *) xcmalloc (num_loc_list, sizeof (unsigned int)); |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| if (reloc_at (section, 0)) |
| printf (_(" Warning: This section has relocations - addresses seen here may not be accurate.\n\n")); |
| printf (_(" Offset Begin End Expression\n")); |
| |
| seen_first_offset = 0; |
| for (i = first; i < num_debug_info_entries; i++) |
| { |
| unsigned long offset; |
| unsigned long base_address; |
| unsigned int k; |
| int has_frame_base; |
| |
| if (!locs_sorted) |
| { |
| for (k = 0; k < debug_information [i].num_loc_offsets; k++) |
| array[k] = k; |
| loc_offsets = debug_information [i].loc_offsets; |
| qsort (array, debug_information [i].num_loc_offsets, |
| sizeof (*array), loc_offsets_compar); |
| } |
| |
| for (k = 0; k < debug_information [i].num_loc_offsets; k++) |
| { |
| j = locs_sorted ? k : array[k]; |
| if (k |
| && debug_information [i].loc_offsets [locs_sorted |
| ? k - 1 : array [k - 1]] |
| == debug_information [i].loc_offsets [j]) |
| continue; |
| has_frame_base = debug_information [i].have_frame_base [j]; |
| offset = debug_information [i].loc_offsets [j]; |
| next = section_begin + offset; |
| base_address = debug_information [i].base_address; |
| |
| if (!seen_first_offset) |
| seen_first_offset = 1; |
| else |
| { |
| if (start < next) |
| warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| (unsigned long) (start - section_begin), |
| (unsigned long) offset); |
| else if (start > next) |
| warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"), |
| (unsigned long) (start - section_begin), |
| (unsigned long) offset); |
| } |
| start = next; |
| |
| if (offset >= bytes) |
| { |
| warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"), |
| offset); |
| continue; |
| } |
| |
| if (is_dwo) |
| display_loc_list_dwo (section, &start, i, offset, has_frame_base); |
| else |
| display_loc_list (section, &start, i, offset, base_address, |
| has_frame_base); |
| } |
| } |
| |
| if (start < section->start + section->size) |
| warn (_("There are %ld unused bytes at the end of section %s\n"), |
| (long) (section->start + section->size - start), section->name); |
| putchar ('\n'); |
| free (array); |
| return 1; |
| } |
| |
| static int |
| display_debug_str (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| unsigned char *start = section->start; |
| unsigned long bytes = section->size; |
| dwarf_vma addr = section->address; |
| |
| if (bytes == 0) |
| { |
| printf (_("\nThe %s section is empty.\n"), section->name); |
| return 0; |
| } |
| |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| |
| while (bytes) |
| { |
| int j; |
| int k; |
| int lbytes; |
| |
| lbytes = (bytes > 16 ? 16 : bytes); |
| |
| printf (" 0x%8.8lx ", (unsigned long) addr); |
| |
| for (j = 0; j < 16; j++) |
| { |
| if (j < lbytes) |
| printf ("%2.2x", start[j]); |
| else |
| printf (" "); |
| |
| if ((j & 3) == 3) |
| printf (" "); |
| } |
| |
| for (j = 0; j < lbytes; j++) |
| { |
| k = start[j]; |
| if (k >= ' ' && k < 0x80) |
| printf ("%c", k); |
| else |
| printf ("."); |
| } |
| |
| putchar ('\n'); |
| |
| start += lbytes; |
| addr += lbytes; |
| bytes -= lbytes; |
| } |
| |
| putchar ('\n'); |
| |
| return 1; |
| } |
| |
| static int |
| display_debug_info (struct dwarf_section *section, void *file) |
| { |
| return process_debug_info (section, file, section->abbrev_sec, 0, 0); |
| } |
| |
| static int |
| display_debug_types (struct dwarf_section *section, void *file) |
| { |
| return process_debug_info (section, file, section->abbrev_sec, 0, 1); |
| } |
| |
| static int |
| display_trace_info (struct dwarf_section *section, void *file) |
| { |
| return process_debug_info (section, file, section->abbrev_sec, 0, 0); |
| } |
| |
| static int |
| display_debug_aranges (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| unsigned char *start = section->start; |
| unsigned char *end = start + section->size; |
| |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| |
| /* It does not matter if this load fails, |
| we test for that later on. */ |
| load_debug_info (file); |
| |
| while (start < end) |
| { |
| unsigned char *hdrptr; |
| DWARF2_Internal_ARange arange; |
| unsigned char *addr_ranges; |
| dwarf_vma length; |
| dwarf_vma address; |
| unsigned char address_size; |
| int excess; |
| unsigned int offset_size; |
| unsigned int initial_length_size; |
| |
| hdrptr = start; |
| |
| SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 4, end); |
| if (arange.ar_length == 0xffffffff) |
| { |
| SAFE_BYTE_GET_AND_INC (arange.ar_length, hdrptr, 8, end); |
| offset_size = 8; |
| initial_length_size = 12; |
| } |
| else |
| { |
| offset_size = 4; |
| initial_length_size = 4; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (arange.ar_version, hdrptr, 2, end); |
| SAFE_BYTE_GET_AND_INC (arange.ar_info_offset, hdrptr, offset_size, end); |
| |
| if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE |
| && num_debug_info_entries > 0 |
| && find_debug_info_for_offset (arange.ar_info_offset) == NULL) |
| warn (_(".debug_info offset of 0x%lx in %s section does not point to a CU header.\n"), |
| (unsigned long) arange.ar_info_offset, section->name); |
| |
| SAFE_BYTE_GET_AND_INC (arange.ar_pointer_size, hdrptr, 1, end); |
| SAFE_BYTE_GET_AND_INC (arange.ar_segment_size, hdrptr, 1, end); |
| |
| if (arange.ar_version != 2 && arange.ar_version != 3) |
| { |
| /* PR 19872: A version number of 0 probably means that there is |
| padding at the end of the .debug_aranges section. Gold puts |
| it there when performing an incremental link, for example. |
| So do not generate a warning in this case. */ |
| if (arange.ar_version) |
| warn (_("Only DWARF 2 and 3 aranges are currently supported.\n")); |
| break; |
| } |
| |
| printf (_(" Length: %ld\n"), |
| (long) arange.ar_length); |
| printf (_(" Version: %d\n"), arange.ar_version); |
| printf (_(" Offset into .debug_info: 0x%lx\n"), |
| (unsigned long) arange.ar_info_offset); |
| printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size); |
| printf (_(" Segment Size: %d\n"), arange.ar_segment_size); |
| |
| address_size = arange.ar_pointer_size + arange.ar_segment_size; |
| |
| /* PR 17512: file: 001-108546-0.001:0.1. */ |
| if (address_size == 0 || address_size > 8) |
| { |
| error (_("Invalid address size in %s section!\n"), |
| section->name); |
| break; |
| } |
| |
| /* The DWARF spec does not require that the address size be a power |
| of two, but we do. This will have to change if we ever encounter |
| an uneven architecture. */ |
| if ((address_size & (address_size - 1)) != 0) |
| { |
| warn (_("Pointer size + Segment size is not a power of two.\n")); |
| break; |
| } |
| |
| if (address_size > 4) |
| printf (_("\n Address Length\n")); |
| else |
| printf (_("\n Address Length\n")); |
| |
| addr_ranges = hdrptr; |
| |
| /* Must pad to an alignment boundary that is twice the address size. */ |
| excess = (hdrptr - start) % (2 * address_size); |
| if (excess) |
| addr_ranges += (2 * address_size) - excess; |
| |
| hdrptr = start + arange.ar_length + initial_length_size; |
| if (hdrptr < start || hdrptr > end) |
| { |
| error (_("Excessive header length: %lx\n"), (long) arange.ar_length); |
| break; |
| } |
| start = hdrptr; |
| |
| while (addr_ranges + 2 * address_size <= start) |
| { |
| SAFE_BYTE_GET_AND_INC (address, addr_ranges, address_size, end); |
| SAFE_BYTE_GET_AND_INC (length, addr_ranges, address_size, end); |
| |
| printf (" "); |
| print_dwarf_vma (address, address_size); |
| print_dwarf_vma (length, address_size); |
| putchar ('\n'); |
| } |
| } |
| |
| printf ("\n"); |
| |
| return 1; |
| } |
| |
| /* Comparison function for qsort. */ |
| static int |
| comp_addr_base (const void * v0, const void * v1) |
| { |
| debug_info * info0 = (debug_info *) v0; |
| debug_info * info1 = (debug_info *) v1; |
| return info0->addr_base - info1->addr_base; |
| } |
| |
| /* Display the debug_addr section. */ |
| static int |
| display_debug_addr (struct dwarf_section *section, |
| void *file) |
| { |
| debug_info **debug_addr_info; |
| unsigned char *entry; |
| unsigned char *end; |
| unsigned int i; |
| unsigned int count; |
| |
| if (section->size == 0) |
| { |
| printf (_("\nThe %s section is empty.\n"), section->name); |
| return 0; |
| } |
| |
| if (load_debug_info (file) == 0) |
| { |
| warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| section->name); |
| return 0; |
| } |
| |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| |
| /* PR 17531: file: cf38d01b. |
| We use xcalloc because a corrupt file may not have initialised all of the |
| fields in the debug_info structure, which means that the sort below might |
| try to move uninitialised data. */ |
| debug_addr_info = (debug_info **) xcalloc ((num_debug_info_entries + 1), |
| sizeof (debug_info *)); |
| |
| count = 0; |
| for (i = 0; i < num_debug_info_entries; i++) |
| if (debug_information [i].addr_base != DEBUG_INFO_UNAVAILABLE) |
| { |
| /* PR 17531: file: cf38d01b. */ |
| if (debug_information[i].addr_base >= section->size) |
| warn (_("Corrupt address base (%lx) found in debug section %u\n"), |
| (unsigned long) debug_information[i].addr_base, i); |
| else |
| debug_addr_info [count++] = debug_information + i; |
| } |
| |
| /* Add a sentinel to make iteration convenient. */ |
| debug_addr_info [count] = (debug_info *) xmalloc (sizeof (debug_info)); |
| debug_addr_info [count]->addr_base = section->size; |
| qsort (debug_addr_info, count, sizeof (debug_info *), comp_addr_base); |
| |
| for (i = 0; i < count; i++) |
| { |
| unsigned int idx; |
| unsigned int address_size = debug_addr_info [i]->pointer_size; |
| |
| printf (_(" For compilation unit at offset 0x%s:\n"), |
| dwarf_vmatoa ("x", debug_addr_info [i]->cu_offset)); |
| |
| printf (_("\tIndex\tAddress\n")); |
| entry = section->start + debug_addr_info [i]->addr_base; |
| end = section->start + debug_addr_info [i + 1]->addr_base; |
| idx = 0; |
| while (entry < end) |
| { |
| dwarf_vma base = byte_get (entry, address_size); |
| printf (_("\t%d:\t"), idx); |
| print_dwarf_vma (base, address_size); |
| printf ("\n"); |
| entry += address_size; |
| idx++; |
| } |
| } |
| printf ("\n"); |
| |
| free (debug_addr_info); |
| return 1; |
| } |
| |
| /* Display the .debug_str_offsets and .debug_str_offsets.dwo sections. */ |
| static int |
| display_debug_str_offsets (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| if (section->size == 0) |
| { |
| printf (_("\nThe %s section is empty.\n"), section->name); |
| return 0; |
| } |
| /* TODO: Dump the contents. This is made somewhat difficult by not knowing |
| what the offset size is for this section. */ |
| return 1; |
| } |
| |
| /* Each debug_information[x].range_lists[y] gets this representation for |
| sorting purposes. */ |
| |
| struct range_entry |
| { |
| /* The debug_information[x].range_lists[y] value. */ |
| unsigned long ranges_offset; |
| |
| /* Original debug_information to find parameters of the data. */ |
| debug_info *debug_info_p; |
| }; |
| |
| /* Sort struct range_entry in ascending order of its RANGES_OFFSET. */ |
| |
| static int |
| range_entry_compar (const void *ap, const void *bp) |
| { |
| const struct range_entry *a_re = (const struct range_entry *) ap; |
| const struct range_entry *b_re = (const struct range_entry *) bp; |
| const unsigned long a = a_re->ranges_offset; |
| const unsigned long b = b_re->ranges_offset; |
| |
| return (a > b) - (b > a); |
| } |
| |
| static int |
| display_debug_ranges (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| unsigned char *start = section->start; |
| unsigned char *last_start = start; |
| unsigned long bytes = section->size; |
| unsigned char *section_begin = start; |
| unsigned char *finish = start + bytes; |
| unsigned int num_range_list, i; |
| struct range_entry *range_entries, *range_entry_fill; |
| |
| if (bytes == 0) |
| { |
| printf (_("\nThe %s section is empty.\n"), section->name); |
| return 0; |
| } |
| |
| if (load_debug_info (file) == 0) |
| { |
| warn (_("Unable to load/parse the .debug_info section, so cannot interpret the %s section.\n"), |
| section->name); |
| return 0; |
| } |
| |
| num_range_list = 0; |
| for (i = 0; i < num_debug_info_entries; i++) |
| num_range_list += debug_information [i].num_range_lists; |
| |
| if (num_range_list == 0) |
| { |
| /* This can happen when the file was compiled with -gsplit-debug |
| which removes references to range lists from the primary .o file. */ |
| printf (_("No range lists in .debug_info section.\n")); |
| return 1; |
| } |
| |
| range_entries = (struct range_entry *) |
| xmalloc (sizeof (*range_entries) * num_range_list); |
| range_entry_fill = range_entries; |
| |
| for (i = 0; i < num_debug_info_entries; i++) |
| { |
| debug_info *debug_info_p = &debug_information[i]; |
| unsigned int j; |
| |
| for (j = 0; j < debug_info_p->num_range_lists; j++) |
| { |
| range_entry_fill->ranges_offset = debug_info_p->range_lists[j]; |
| range_entry_fill->debug_info_p = debug_info_p; |
| range_entry_fill++; |
| } |
| } |
| |
| qsort (range_entries, num_range_list, sizeof (*range_entries), |
| range_entry_compar); |
| |
| if (dwarf_check != 0 && range_entries[0].ranges_offset != 0) |
| warn (_("Range lists in %s section start at 0x%lx\n"), |
| section->name, range_entries[0].ranges_offset); |
| |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| printf (_(" Offset Begin End\n")); |
| |
| for (i = 0; i < num_range_list; i++) |
| { |
| struct range_entry *range_entry = &range_entries[i]; |
| debug_info *debug_info_p = range_entry->debug_info_p; |
| unsigned int pointer_size; |
| unsigned long offset; |
| unsigned char *next; |
| unsigned long base_address; |
| |
| pointer_size = debug_info_p->pointer_size; |
| offset = range_entry->ranges_offset; |
| next = section_begin + offset; |
| base_address = debug_info_p->base_address; |
| |
| /* PR 17512: file: 001-101485-0.001:0.1. */ |
| if (pointer_size < 2 || pointer_size > 8) |
| { |
| warn (_("Corrupt pointer size (%d) in debug entry at offset %8.8lx\n"), |
| pointer_size, offset); |
| continue; |
| } |
| |
| if (dwarf_check != 0 && i > 0) |
| { |
| if (start < next) |
| warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"), |
| (unsigned long) (start - section_begin), |
| (unsigned long) (next - section_begin), section->name); |
| else if (start > next) |
| { |
| if (next == last_start) |
| continue; |
| warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"), |
| (unsigned long) (start - section_begin), |
| (unsigned long) (next - section_begin), section->name); |
| } |
| } |
| start = next; |
| last_start = next; |
| |
| while (start < finish) |
| { |
| dwarf_vma begin; |
| dwarf_vma end; |
| |
| SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, finish); |
| if (start >= finish) |
| break; |
| SAFE_SIGNED_BYTE_GET_AND_INC (end, start, pointer_size, finish); |
| |
| printf (" %8.8lx ", offset); |
| |
| if (begin == 0 && end == 0) |
| { |
| printf (_("<End of list>\n")); |
| break; |
| } |
| |
| /* Check base address specifiers. */ |
| if (is_max_address (begin, pointer_size) |
| && !is_max_address (end, pointer_size)) |
| { |
| base_address = end; |
| print_dwarf_vma (begin, pointer_size); |
| print_dwarf_vma (end, pointer_size); |
| printf ("(base address)\n"); |
| continue; |
| } |
| |
| print_dwarf_vma (begin + base_address, pointer_size); |
| print_dwarf_vma (end + base_address, pointer_size); |
| |
| if (begin == end) |
| fputs (_("(start == end)"), stdout); |
| else if (begin > end) |
| fputs (_("(start > end)"), stdout); |
| |
| putchar ('\n'); |
| } |
| } |
| putchar ('\n'); |
| |
| free (range_entries); |
| |
| return 1; |
| } |
| |
| typedef struct Frame_Chunk |
| { |
| struct Frame_Chunk *next; |
| unsigned char *chunk_start; |
| unsigned int ncols; |
| /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */ |
| short int *col_type; |
| int *col_offset; |
| char *augmentation; |
| unsigned int code_factor; |
| int data_factor; |
| dwarf_vma pc_begin; |
| dwarf_vma pc_range; |
| int cfa_reg; |
| dwarf_vma cfa_offset; |
| unsigned int ra; |
| unsigned char fde_encoding; |
| unsigned char cfa_exp; |
| unsigned char ptr_size; |
| unsigned char segment_size; |
| } |
| Frame_Chunk; |
| |
| static const char *const *dwarf_regnames; |
| static unsigned int dwarf_regnames_count; |
| |
| /* A marker for a col_type that means this column was never referenced |
| in the frame info. */ |
| #define DW_CFA_unreferenced (-1) |
| |
| /* Return 0 if no more space is needed, 1 if more space is needed, |
| -1 for invalid reg. */ |
| |
| static int |
| frame_need_space (Frame_Chunk *fc, unsigned int reg) |
| { |
| unsigned int prev = fc->ncols; |
| |
| if (reg < (unsigned int) fc->ncols) |
| return 0; |
| |
| if (dwarf_regnames_count |
| && reg > dwarf_regnames_count) |
| return -1; |
| |
| fc->ncols = reg + 1; |
| /* PR 17512: file: 10450-2643-0.004. |
| If reg == -1 then this can happen... */ |
| if (fc->ncols == 0) |
| return -1; |
| |
| /* PR 17512: file: 2844a11d. */ |
| if (fc->ncols > 1024) |
| { |
| error (_("Unfeasibly large register number: %u\n"), reg); |
| fc->ncols = 0; |
| /* FIXME: 1024 is an arbitrary limit. Increase it if |
| we ever encounter a valid binary that exceeds it. */ |
| return -1; |
| } |
| |
| fc->col_type = (short int *) xcrealloc (fc->col_type, fc->ncols, |
| sizeof (short int)); |
| fc->col_offset = (int *) xcrealloc (fc->col_offset, fc->ncols, sizeof (int)); |
| /* PR 17512: file:002-10025-0.005. */ |
| if (fc->col_type == NULL || fc->col_offset == NULL) |
| { |
| error (_("Out of memory allocating %u columns in dwarf frame arrays\n"), |
| fc->ncols); |
| fc->ncols = 0; |
| return -1; |
| } |
| |
| while (prev < fc->ncols) |
| { |
| fc->col_type[prev] = DW_CFA_unreferenced; |
| fc->col_offset[prev] = 0; |
| prev++; |
| } |
| return 1; |
| } |
| |
| static const char *const dwarf_regnames_i386[] = |
| { |
| "eax", "ecx", "edx", "ebx", /* 0 - 3 */ |
| "esp", "ebp", "esi", "edi", /* 4 - 7 */ |
| "eip", "eflags", NULL, /* 8 - 10 */ |
| "st0", "st1", "st2", "st3", /* 11 - 14 */ |
| "st4", "st5", "st6", "st7", /* 15 - 18 */ |
| NULL, NULL, /* 19 - 20 */ |
| "xmm0", "xmm1", "xmm2", "xmm3", /* 21 - 24 */ |
| "xmm4", "xmm5", "xmm6", "xmm7", /* 25 - 28 */ |
| "mm0", "mm1", "mm2", "mm3", /* 29 - 32 */ |
| "mm4", "mm5", "mm6", "mm7", /* 33 - 36 */ |
| "fcw", "fsw", "mxcsr", /* 37 - 39 */ |
| "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, /* 40 - 47 */ |
| "tr", "ldtr", /* 48 - 49 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 50 - 57 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 58 - 65 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 66 - 73 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 74 - 81 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 82 - 89 */ |
| NULL, NULL, NULL, /* 90 - 92 */ |
| "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" /* 93 - 100 */ |
| }; |
| |
| static const char *const dwarf_regnames_iamcu[] = |
| { |
| "eax", "ecx", "edx", "ebx", /* 0 - 3 */ |
| "esp", "ebp", "esi", "edi", /* 4 - 7 */ |
| "eip", "eflags", NULL, /* 8 - 10 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 11 - 18 */ |
| NULL, NULL, /* 19 - 20 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 21 - 28 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 29 - 36 */ |
| NULL, NULL, NULL, /* 37 - 39 */ |
| "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, /* 40 - 47 */ |
| "tr", "ldtr", /* 48 - 49 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 50 - 57 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 58 - 65 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 66 - 73 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 74 - 81 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 82 - 89 */ |
| NULL, NULL, NULL, /* 90 - 92 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL /* 93 - 100 */ |
| }; |
| |
| void |
| init_dwarf_regnames_i386 (void) |
| { |
| dwarf_regnames = dwarf_regnames_i386; |
| dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_i386); |
| } |
| |
| void |
| init_dwarf_regnames_iamcu (void) |
| { |
| dwarf_regnames = dwarf_regnames_iamcu; |
| dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_iamcu); |
| } |
| |
| static const char *const dwarf_regnames_x86_64[] = |
| { |
| "rax", "rdx", "rcx", "rbx", |
| "rsi", "rdi", "rbp", "rsp", |
| "r8", "r9", "r10", "r11", |
| "r12", "r13", "r14", "r15", |
| "rip", |
| "xmm0", "xmm1", "xmm2", "xmm3", |
| "xmm4", "xmm5", "xmm6", "xmm7", |
| "xmm8", "xmm9", "xmm10", "xmm11", |
| "xmm12", "xmm13", "xmm14", "xmm15", |
| "st0", "st1", "st2", "st3", |
| "st4", "st5", "st6", "st7", |
| "mm0", "mm1", "mm2", "mm3", |
| "mm4", "mm5", "mm6", "mm7", |
| "rflags", |
| "es", "cs", "ss", "ds", "fs", "gs", NULL, NULL, |
| "fs.base", "gs.base", NULL, NULL, |
| "tr", "ldtr", |
| "mxcsr", "fcw", "fsw", |
| "xmm16", "xmm17", "xmm18", "xmm19", |
| "xmm20", "xmm21", "xmm22", "xmm23", |
| "xmm24", "xmm25", "xmm26", "xmm27", |
| "xmm28", "xmm29", "xmm30", "xmm31", |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 83 - 90 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 91 - 98 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 99 - 106 */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 107 - 114 */ |
| NULL, NULL, NULL, /* 115 - 117 */ |
| "k0", "k1", "k2", "k3", "k4", "k5", "k6", "k7" |
| }; |
| |
| void |
| init_dwarf_regnames_x86_64 (void) |
| { |
| dwarf_regnames = dwarf_regnames_x86_64; |
| dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_x86_64); |
| } |
| |
| static const char *const dwarf_regnames_aarch64[] = |
| { |
| "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7", |
| "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", |
| "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", |
| "x24", "x25", "x26", "x27", "x28", "x29", "x30", "sp", |
| NULL, "elr", NULL, NULL, NULL, NULL, NULL, NULL, |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", |
| "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", |
| "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", |
| "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", |
| }; |
| |
| void |
| init_dwarf_regnames_aarch64 (void) |
| { |
| dwarf_regnames = dwarf_regnames_aarch64; |
| dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_aarch64); |
| } |
| |
| static const char *const dwarf_regnames_s390[] = |
| { |
| /* Avoid saying "r5 (r5)", so omit the names of r0-r15. */ |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, |
| "f0", "f2", "f4", "f6", "f1", "f3", "f5", "f7", |
| "f8", "f10", "f12", "f14", "f9", "f11", "f13", "f15", |
| "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", |
| "cr8", "cr9", "cr10", "cr11", "cr12", "cr13", "cr14", "cr15", |
| "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", |
| "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15", |
| "pswm", "pswa", |
| NULL, NULL, |
| "v16", "v18", "v20", "v22", "v17", "v19", "v21", "v23", |
| "v24", "v26", "v28", "v30", "v25", "v27", "v29", "v31", |
| }; |
| |
| void |
| init_dwarf_regnames_s390 (void) |
| { |
| dwarf_regnames = dwarf_regnames_s390; |
| dwarf_regnames_count = ARRAY_SIZE (dwarf_regnames_s390); |
| } |
| |
| void |
| init_dwarf_regnames (unsigned int e_machine) |
| { |
| switch (e_machine) |
| { |
| case EM_386: |
| init_dwarf_regnames_i386 (); |
| break; |
| |
| case EM_IAMCU: |
| init_dwarf_regnames_iamcu (); |
| break; |
| |
| case EM_X86_64: |
| case EM_L1OM: |
| case EM_K1OM: |
| init_dwarf_regnames_x86_64 (); |
| break; |
| |
| case EM_AARCH64: |
| init_dwarf_regnames_aarch64 (); |
| break; |
| |
| case EM_S390: |
| init_dwarf_regnames_s390 (); |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| static const char * |
| regname (unsigned int regno, int row) |
| { |
| static char reg[64]; |
| if (dwarf_regnames |
| && regno < dwarf_regnames_count |
| && dwarf_regnames [regno] != NULL) |
| { |
| if (row) |
| return dwarf_regnames [regno]; |
| snprintf (reg, sizeof (reg), "r%d (%s)", regno, |
| dwarf_regnames [regno]); |
| } |
| else |
| snprintf (reg, sizeof (reg), "r%d", regno); |
| return reg; |
| } |
| |
| static void |
| frame_display_row (Frame_Chunk *fc, int *need_col_headers, unsigned int *max_regs) |
| { |
| unsigned int r; |
| char tmp[100]; |
| |
| if (*max_regs != fc->ncols) |
| *max_regs = fc->ncols; |
| |
| if (*need_col_headers) |
| { |
| static const char *sloc = " LOC"; |
| |
| *need_col_headers = 0; |
| |
| printf ("%-*s CFA ", eh_addr_size * 2, sloc); |
| |
| for (r = 0; r < *max_regs; r++) |
| if (fc->col_type[r] != DW_CFA_unreferenced) |
| { |
| if (r == fc->ra) |
| printf ("ra "); |
| else |
| printf ("%-5s ", regname (r, 1)); |
| } |
| |
| printf ("\n"); |
| } |
| |
| print_dwarf_vma (fc->pc_begin, eh_addr_size); |
| if (fc->cfa_exp) |
| strcpy (tmp, "exp"); |
| else |
| sprintf (tmp, "%s%+d", regname (fc->cfa_reg, 1), (int) fc->cfa_offset); |
| printf ("%-8s ", tmp); |
| |
| for (r = 0; r < fc->ncols; r++) |
| { |
| if (fc->col_type[r] != DW_CFA_unreferenced) |
| { |
| switch (fc->col_type[r]) |
| { |
| case DW_CFA_undefined: |
| strcpy (tmp, "u"); |
| break; |
| case DW_CFA_same_value: |
| strcpy (tmp, "s"); |
| break; |
| case DW_CFA_offset: |
| sprintf (tmp, "c%+d", fc->col_offset[r]); |
| break; |
| case DW_CFA_val_offset: |
| sprintf (tmp, "v%+d", fc->col_offset[r]); |
| break; |
| case DW_CFA_register: |
| sprintf (tmp, "%s", regname (fc->col_offset[r], 0)); |
| break; |
| case DW_CFA_expression: |
| strcpy (tmp, "exp"); |
| break; |
| case DW_CFA_val_expression: |
| strcpy (tmp, "vexp"); |
| break; |
| default: |
| strcpy (tmp, "n/a"); |
| break; |
| } |
| printf ("%-5s ", tmp); |
| } |
| } |
| printf ("\n"); |
| } |
| |
| #define GET(VAR, N) SAFE_BYTE_GET_AND_INC (VAR, start, N, end) |
| #define LEB() read_uleb128 (start, & length_return, end); start += length_return |
| #define SLEB() read_sleb128 (start, & length_return, end); start += length_return |
| |
| static unsigned char * |
| read_cie (unsigned char *start, unsigned char *end, |
| Frame_Chunk **p_cie, int *p_version, |
| unsigned long *p_aug_len, unsigned char **p_aug) |
| { |
| int version; |
| Frame_Chunk *fc; |
| unsigned int length_return; |
| unsigned char *augmentation_data = NULL; |
| unsigned long augmentation_data_len = 0; |
| |
| * p_cie = NULL; |
| /* PR 17512: file: 001-228113-0.004. */ |
| if (start >= end) |
| return end; |
| |
| fc = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); |
| memset (fc, 0, sizeof (Frame_Chunk)); |
| |
| fc->col_type = (short int *) xmalloc (sizeof (short int)); |
| fc->col_offset = (int *) xmalloc (sizeof (int)); |
| |
| version = *start++; |
| |
| fc->augmentation = (char *) start; |
| /* PR 17512: file: 001-228113-0.004. |
| Skip past augmentation name, but avoid running off the end of the data. */ |
| while (start < end) |
| if (* start ++ == '\0') |
| break; |
| if (start == end) |
| { |
| warn (_("No terminator for augmentation name\n")); |
| return start; |
| } |
| |
| if (strcmp (fc->augmentation, "eh") == 0) |
| start += eh_addr_size; |
| |
| if (version >= 4) |
| { |
| GET (fc->ptr_size, 1); |
| if (fc->ptr_size < 1 || fc->ptr_size > 8) |
| { |
| warn (_("Invalid pointer size (%d) in CIE data\n"), fc->ptr_size); |
| return end; |
| } |
| |
| GET (fc->segment_size, 1); |
| /* PR 17512: file: e99d2804. */ |
| if (fc->segment_size > 8 || fc->segment_size + fc->ptr_size > 8) |
| { |
| warn (_("Invalid segment size (%d) in CIE data\n"), fc->segment_size); |
| return end; |
| } |
| |
| eh_addr_size = fc->ptr_size; |
| } |
| else |
| { |
| fc->ptr_size = eh_addr_size; |
| fc->segment_size = 0; |
| } |
| fc->code_factor = LEB (); |
| fc->data_factor = SLEB (); |
| if (version == 1) |
| { |
| GET (fc->ra, 1); |
| } |
| else |
| { |
| fc->ra = LEB (); |
| } |
| |
| if (fc->augmentation[0] == 'z') |
| { |
| augmentation_data_len = LEB (); |
| augmentation_data = start; |
| start += augmentation_data_len; |
| /* PR 17512: file: 11042-2589-0.004. */ |
| if (start > end) |
| { |
| warn (_("Augmentation data too long: 0x%lx\n"), augmentation_data_len); |
| return end; |
| } |
| } |
| |
| if (augmentation_data_len) |
| { |
| unsigned char *p; |
| unsigned char *q; |
| unsigned char *qend; |
| |
| p = (unsigned char *) fc->augmentation + 1; |
| q = augmentation_data; |
| qend = q + augmentation_data_len; |
| |
| /* PR 17531: file: 015adfaa. */ |
| if (qend < q) |
| { |
| warn (_("Negative augmentation data length: 0x%lx"), augmentation_data_len); |
| augmentation_data_len = 0; |
| } |
| |
| while (p < end && q < augmentation_data + augmentation_data_len) |
| { |
| if (*p == 'L') |
| q++; |
| else if (*p == 'P') |
| q += 1 + size_of_encoded_value (*q); |
| else if (*p == 'R') |
| fc->fde_encoding = *q++; |
| else if (*p == 'S') |
| ; |
| else |
| break; |
| p++; |
| } |
| /* Note - it is OK if this loop terminates with q < qend. |
| Padding may have been inserted to align the end of the CIE. */ |
| } |
| |
| *p_cie = fc; |
| if (p_version) |
| *p_version = version; |
| if (p_aug_len) |
| { |
| *p_aug_len = augmentation_data_len; |
| *p_aug = augmentation_data; |
| } |
| return start; |
| } |
| |
| static int |
| display_debug_frames (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| unsigned char *start = section->start; |
| unsigned char *end = start + section->size; |
| unsigned char *section_start = start; |
| Frame_Chunk *chunks = 0, *forward_refs = 0; |
| Frame_Chunk *remembered_state = 0; |
| Frame_Chunk *rs; |
| int is_eh = strcmp (section->name, ".eh_frame") == 0; |
| unsigned int length_return; |
| unsigned int max_regs = 0; |
| const char *bad_reg = _("bad register: "); |
| unsigned int saved_eh_addr_size = eh_addr_size; |
| |
| printf (_("Contents of the %s section:\n"), section->name); |
| |
| while (start < end) |
| { |
| unsigned char *saved_start; |
| unsigned char *block_end; |
| dwarf_vma length; |
| dwarf_vma cie_id; |
| Frame_Chunk *fc; |
| Frame_Chunk *cie; |
| int need_col_headers = 1; |
| unsigned char *augmentation_data = NULL; |
| unsigned long augmentation_data_len = 0; |
| unsigned int encoded_ptr_size = saved_eh_addr_size; |
| unsigned int offset_size; |
| unsigned int initial_length_size; |
| bfd_boolean all_nops; |
| |
| saved_start = start; |
| |
| SAFE_BYTE_GET_AND_INC (length, start, 4, end); |
| |
| if (length == 0) |
| { |
| printf ("\n%08lx ZERO terminator\n\n", |
| (unsigned long)(saved_start - section_start)); |
| /* Skip any zero terminators that directly follow. |
| A corrupt section size could have loaded a whole |
| slew of zero filled memory bytes. eg |
| PR 17512: file: 070-19381-0.004. */ |
| while (start < end && * start == 0) |
| ++ start; |
| continue; |
| } |
| |
| if (length == 0xffffffff) |
| { |
| SAFE_BYTE_GET_AND_INC (length, start, 8, end); |
| offset_size = 8; |
| initial_length_size = 12; |
| } |
| else |
| { |
| offset_size = 4; |
| initial_length_size = 4; |
| } |
| |
| block_end = saved_start + length + initial_length_size; |
| if (block_end > end || block_end < start) |
| { |
| warn ("Invalid length 0x%s in FDE at %#08lx\n", |
| dwarf_vmatoa_1 (NULL, length, offset_size), |
| (unsigned long) (saved_start - section_start)); |
| block_end = end; |
| } |
| |
| SAFE_BYTE_GET_AND_INC (cie_id, start, offset_size, end); |
| |
| if (is_eh ? (cie_id == 0) : ((offset_size == 4 && cie_id == DW_CIE_ID) |
| || (offset_size == 8 && cie_id == DW64_CIE_ID))) |
| { |
| int version; |
| unsigned int mreg; |
| |
| start = read_cie (start, end, &cie, &version, |
| &augmentation_data_len, &augmentation_data); |
| /* PR 17512: file: 027-135133-0.005. */ |
| if (cie == NULL) |
| break; |
| |
| fc = cie; |
| fc->next = chunks; |
| chunks = fc; |
| fc->chunk_start = saved_start; |
| mreg = max_regs > 0 ? max_regs - 1 : 0; |
| if (mreg < fc->ra) |
| mreg = fc->ra; |
| if (frame_need_space (fc, mreg) < 0) |
| break; |
| if (fc->fde_encoding) |
| encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| |
| printf ("\n%08lx ", (unsigned long) (saved_start - section_start)); |
| print_dwarf_vma (length, fc->ptr_size); |
| print_dwarf_vma (cie_id, offset_size); |
| |
| if (do_debug_frames_interp) |
| { |
| printf ("CIE \"%s\" cf=%d df=%d ra=%d\n", fc->augmentation, |
| fc->code_factor, fc->data_factor, fc->ra); |
| } |
| else |
| { |
| printf ("CIE\n"); |
| printf (" Version: %d\n", version); |
| printf (" Augmentation: \"%s\"\n", fc->augmentation); |
| if (version >= 4) |
| { |
| printf (" Pointer Size: %u\n", fc->ptr_size); |
| printf (" Segment Size: %u\n", fc->segment_size); |
| } |
| printf (" Code alignment factor: %u\n", fc->code_factor); |
| printf (" Data alignment factor: %d\n", fc->data_factor); |
| printf (" Return address column: %d\n", fc->ra); |
| |
| if (augmentation_data_len) |
| { |
| unsigned long i; |
| |
| printf (" Augmentation data: "); |
| for (i = 0; i < augmentation_data_len; ++i) |
| /* FIXME: If do_wide is FALSE, then we should |
| add carriage returns at 80 columns... */ |
| printf (" %02x", augmentation_data[i]); |
| putchar ('\n'); |
| } |
| putchar ('\n'); |
| } |
| } |
| else |
| { |
| unsigned char *look_for; |
| static Frame_Chunk fde_fc; |
| unsigned long segment_selector; |
| |
| if (is_eh) |
| { |
| dwarf_vma sign = (dwarf_vma) 1 << (offset_size * 8 - 1); |
| look_for = start - 4 - ((cie_id ^ sign) - sign); |
| } |
| else |
| look_for = section_start + cie_id; |
| |
| if (look_for <= saved_start) |
| { |
| for (cie = chunks; cie ; cie = cie->next) |
| if (cie->chunk_start == look_for) |
| break; |
| } |
| else |
| { |
| for (cie = forward_refs; cie ; cie = cie->next) |
| if (cie->chunk_start == look_for) |
| break; |
| if (!cie) |
| { |
| unsigned int off_size; |
| unsigned char *cie_scan; |
| |
| cie_scan = look_for; |
| off_size = 4; |
| SAFE_BYTE_GET_AND_INC (length, cie_scan, 4, end); |
| if (length == 0xffffffff) |
| { |
| SAFE_BYTE_GET_AND_INC (length, cie_scan, 8, end); |
| off_size = 8; |
| } |
| if (length != 0) |
| { |
| dwarf_vma c_id; |
| |
| SAFE_BYTE_GET_AND_INC (c_id, cie_scan, off_size, end); |
| if (is_eh |
| ? c_id == 0 |
| : ((off_size == 4 && c_id == DW_CIE_ID) |
| || (off_size == 8 && c_id == DW64_CIE_ID))) |
| { |
| int version; |
| unsigned int mreg; |
| |
| read_cie (cie_scan, end, &cie, &version, |
| &augmentation_data_len, &augmentation_data); |
| /* PR 17512: file: 3450-2098-0.004. */ |
| if (cie == NULL) |
| { |
| warn (_("Failed to read CIE information\n")); |
| break; |
| } |
| cie->next = forward_refs; |
| forward_refs = cie; |
| cie->chunk_start = look_for; |
| mreg = max_regs > 0 ? max_regs - 1 : 0; |
| if (mreg < cie->ra) |
| mreg = cie->ra; |
| if (frame_need_space (cie, mreg) < 0) |
| { |
| warn (_("Invalid max register\n")); |
| break; |
| } |
| if (cie->fde_encoding) |
| encoded_ptr_size |
| = size_of_encoded_value (cie->fde_encoding); |
| } |
| } |
| } |
| } |
| |
| fc = &fde_fc; |
| memset (fc, 0, sizeof (Frame_Chunk)); |
| |
| if (!cie) |
| { |
| warn ("Invalid CIE pointer 0x%s in FDE at %#08lx\n", |
| dwarf_vmatoa_1 (NULL, cie_id, offset_size), |
| (unsigned long) (saved_start - section_start)); |
| fc->ncols = 0; |
| fc->col_type = (short int *) xmalloc (sizeof (short int)); |
| fc->col_offset = (int *) xmalloc (sizeof (int)); |
| if (frame_need_space (fc, max_regs > 0 ? max_regs - 1 : 0) < 0) |
| { |
| warn (_("Invalid max register\n")); |
| break; |
| } |
| cie = fc; |
| fc->augmentation = ""; |
| fc->fde_encoding = 0; |
| fc->ptr_size = eh_addr_size; |
| fc->segment_size = 0; |
| } |
| else |
| { |
| fc->ncols = cie->ncols; |
| fc->col_type = (short int *) xcmalloc (fc->ncols, sizeof (short int)); |
| fc->col_offset = (int *) xcmalloc (fc->ncols, sizeof (int)); |
| memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int)); |
| memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int)); |
| fc->augmentation = cie->augmentation; |
| fc->ptr_size = cie->ptr_size; |
| eh_addr_size = cie->ptr_size; |
| fc->segment_size = cie->segment_size; |
| fc->code_factor = cie->code_factor; |
| fc->data_factor = cie->data_factor; |
| fc->cfa_reg = cie->cfa_reg; |
| fc->cfa_offset = cie->cfa_offset; |
| fc->ra = cie->ra; |
| if (frame_need_space (fc, max_regs > 0 ? max_regs - 1: 0) < 0) |
| { |
| warn (_("Invalid max register\n")); |
| break; |
| } |
| fc->fde_encoding = cie->fde_encoding; |
| } |
| |
| if (fc->fde_encoding) |
| encoded_ptr_size = size_of_encoded_value (fc->fde_encoding); |
| |
| segment_selector = 0; |
| if (fc->segment_size) |
| { |
| if (fc->segment_size > sizeof (segment_selector)) |
| { |
| /* PR 17512: file: 9e196b3e. */ |
| warn (_("Probably corrupt segment size: %d - using 4 instead\n"), fc->segment_size); |
| fc->segment_size = 4; |
| } |
| SAFE_BYTE_GET_AND_INC (segment_selector, start, fc->segment_size, end); |
| } |
| |
| fc->pc_begin = get_encoded_value (&start, fc->fde_encoding, section, end); |
| |
| /* FIXME: It appears that sometimes the final pc_range value is |
| encoded in less than encoded_ptr_size bytes. See the x86_64 |
| run of the "objcopy on compressed debug sections" test for an |
| example of this. */ |
| SAFE_BYTE_GET_AND_INC (fc->pc_range, start, encoded_ptr_size, end); |
| |
| if (cie->augmentation[0] == 'z') |
| { |
| augmentation_data_len = LEB (); |
| augmentation_data = start; |
| start += augmentation_data_len; |
| /* PR 17512: file: 722-8446-0.004. */ |
| if (start >= end || ((signed long) augmentation_data_len) < 0) |
| { |
| warn (_("Corrupt augmentation data length: %lx\n"), |
| augmentation_data_len); |
| start = end; |
| augmentation_data = NULL; |
| augmentation_data_len = 0; |
| } |
| } |
| |
| printf ("\n%08lx %s %s FDE cie=%08lx pc=", |
| (unsigned long)(saved_start - section_start), |
| dwarf_vmatoa_1 (NULL, length, fc->ptr_size), |
| dwarf_vmatoa_1 (NULL, cie_id, offset_size), |
| (unsigned long)(cie->chunk_start - section_start)); |
| |
| if (fc->segment_size) |
| printf ("%04lx:", segment_selector); |
| |
| printf ("%s..%s\n", |
| dwarf_vmatoa_1 (NULL, fc->pc_begin, fc->ptr_size), |
| dwarf_vmatoa_1 (NULL, fc->pc_begin + fc->pc_range, fc->ptr_size)); |
| |
| if (! do_debug_frames_interp && augmentation_data_len) |
| { |
| unsigned long i; |
| |
| printf (" Augmentation data: "); |
| for (i = 0; i < augmentation_data_len; ++i) |
| printf (" %02x", augmentation_data[i]); |
| putchar ('\n'); |
| putchar ('\n'); |
| } |
| } |
| |
| /* At this point, fc is the current chunk, cie (if any) is set, and |
| we're about to interpret instructions for the chunk. */ |
| /* ??? At present we need to do this always, since this sizes the |
| fc->col_type and fc->col_offset arrays, which we write into always. |
| We should probably split the interpreted and non-interpreted bits |
| into two different routines, since there's so much that doesn't |
| really overlap between them. */ |
| if (1 || do_debug_frames_interp) |
| { |
| /* Start by making a pass over the chunk, allocating storage |
| and taking note of what registers are used. */ |
| unsigned char *tmp = start; |
| |
| while (start < block_end) |
| { |
| unsigned int reg, op, opa; |
| unsigned long temp; |
| unsigned char * new_start; |
| |
| op = *start++; |
| opa = op & 0x3f; |
| if (op & 0xc0) |
| op &= 0xc0; |
| |
| /* Warning: if you add any more cases to this switch, be |
| sure to add them to the corresponding switch below. */ |
| switch (op) |
| { |
| case DW_CFA_advance_loc: |
| break; |
| case DW_CFA_offset: |
| LEB (); |
| if (frame_need_space (fc, opa) >= 0) |
| fc->col_type[opa] = DW_CFA_undefined; |
| break; |
| case DW_CFA_restore: |
| if (frame_need_space (fc, opa) >= 0) |
| fc->col_type[opa] = DW_CFA_undefined; |
| break; |
| case DW_CFA_set_loc: |
| start += encoded_ptr_size; |
| break; |
| case DW_CFA_advance_loc1: |
| start += 1; |
| break; |
| case DW_CFA_advance_loc2: |
| start += 2; |
| break; |
| case DW_CFA_advance_loc4: |
| start += 4; |
| break; |
| case DW_CFA_offset_extended: |
| case DW_CFA_val_offset: |
| reg = LEB (); LEB (); |
| if (frame_need_space (fc, reg) >= 0) |
| fc->col_type[reg] = DW_CFA_undefined; |
| break; |
| case DW_CFA_restore_extended: |
| reg = LEB (); |
| if (frame_need_space (fc, reg) >= 0) |
| fc->col_type[reg] = DW_CFA_undefined; |
| break; |
| case DW_CFA_undefined: |
| reg = LEB (); |
| if (frame_need_space (fc, reg) >= 0) |
| fc->col_type[reg] = DW_CFA_undefined; |
| break; |
| case DW_CFA_same_value: |
| reg = LEB (); |
| if (frame_need_space (fc, reg) >= 0) |
| fc->col_type[reg] = DW_CFA_undefined; |
| break; |
| case DW_CFA_register: |
| reg = LEB (); LEB (); |
| if (frame_need_space (fc, reg) >= 0) |
| fc->col_type[reg] = DW_CFA_undefined; |
| break; |
| case DW_CFA_def_cfa: |
| LEB (); LEB (); |
| break; |
| case DW_CFA_def_cfa_register: |
| LEB (); |
| break; |
| case DW_CFA_def_cfa_offset: |
| LEB (); |
| break; |
| case DW_CFA_def_cfa_expression: |
| temp = LEB (); |
| new_start = start + temp; |
| if (new_start < start) |
| { |
| warn (_("Corrupt CFA_def expression value: %lu\n"), temp); |
| start = block_end; |
| } |
| else |
| start = new_start; |
| break; |
| case DW_CFA_expression: |
| case DW_CFA_val_expression: |
| reg = LEB (); |
| temp = LEB (); |
| new_start = start + temp; |
| if (new_start < start) |
| { |
| /* PR 17512: file:306-192417-0.005. */ |
| warn (_("Corrupt CFA expression value: %lu\n"), temp); |
| start = block_end; |
| } |
| else |
| start = new_start; |
| if (frame_need_space (fc, reg) >= 0) |
| fc->col_type[reg] = DW_CFA_undefined; |
| break; |
| case DW_CFA_offset_extended_sf: |
| case DW_CFA_val_offset_sf: |
| reg = LEB (); SLEB (); |
| if (frame_need_space (fc, reg) >= 0) |
| fc->col_type[reg] = DW_CFA_undefined; |
| break; |
| case DW_CFA_def_cfa_sf: |
| LEB (); SLEB (); |
| break; |
| case DW_CFA_def_cfa_offset_sf: |
| SLEB (); |
| break; |
| case DW_CFA_MIPS_advance_loc8: |
| start += 8; |
| break; |
| case DW_CFA_GNU_args_size: |
| LEB (); |
| break; |
| case DW_CFA_GNU_negative_offset_extended: |
| reg = LEB (); LEB (); |
| if (frame_need_space (fc, reg) >= 0) |
| fc->col_type[reg] = DW_CFA_undefined; |
| break; |
| default: |
| break; |
| } |
| } |
| start = tmp; |
| } |
| |
| all_nops = TRUE; |
| |
| /* Now we know what registers are used, make a second pass over |
| the chunk, this time actually printing out the info. */ |
| |
| while (start < block_end) |
| { |
| unsigned char * tmp; |
| unsigned op, opa; |
| unsigned long ul, reg, roffs; |
| dwarf_vma l; |
| dwarf_vma ofs; |
| dwarf_vma vma; |
| const char *reg_prefix = ""; |
| |
| op = *start++; |
| opa = op & 0x3f; |
| if (op & 0xc0) |
| op &= 0xc0; |
| |
| /* Make a note if something other than DW_CFA_nop happens. */ |
| if (op != DW_CFA_nop) |
| all_nops = FALSE; |
| |
| /* Warning: if you add any more cases to this switch, be |
| sure to add them to the corresponding switch above. */ |
| switch (op) |
| { |
| case DW_CFA_advance_loc: |
| if (do_debug_frames_interp) |
| frame_display_row (fc, &need_col_headers, &max_regs); |
| else |
| printf (" DW_CFA_advance_loc: %d to %s\n", |
| opa * fc->code_factor, |
| dwarf_vmatoa_1 (NULL, |
| fc->pc_begin + opa * fc->code_factor, |
| fc->ptr_size)); |
| fc->pc_begin += opa * fc->code_factor; |
| break; |
| |
| case DW_CFA_offset: |
| roffs = LEB (); |
| if (opa >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_offset: %s%s at cfa%+ld\n", |
| reg_prefix, regname (opa, 0), |
| roffs * fc->data_factor); |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[opa] = DW_CFA_offset; |
| fc->col_offset[opa] = roffs * fc->data_factor; |
| } |
| break; |
| |
| case DW_CFA_restore: |
| if (opa >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_restore: %s%s\n", |
| reg_prefix, regname (opa, 0)); |
| if (*reg_prefix != '\0') |
| break; |
| |
| if (opa >= (unsigned int) cie->ncols |
| || (do_debug_frames_interp |
| && cie->col_type[opa] == DW_CFA_unreferenced)) |
| { |
| fc->col_type[opa] = DW_CFA_undefined; |
| fc->col_offset[opa] = 0; |
| } |
| else |
| { |
| fc->col_type[opa] = cie->col_type[opa]; |
| fc->col_offset[opa] = cie->col_offset[opa]; |
| } |
| break; |
| |
| case DW_CFA_set_loc: |
| vma = get_encoded_value (&start, fc->fde_encoding, section, block_end); |
| if (do_debug_frames_interp) |
| frame_display_row (fc, &need_col_headers, &max_regs); |
| else |
| printf (" DW_CFA_set_loc: %s\n", |
| dwarf_vmatoa_1 (NULL, vma, fc->ptr_size)); |
| fc->pc_begin = vma; |
| break; |
| |
| case DW_CFA_advance_loc1: |
| SAFE_BYTE_GET_AND_INC (ofs, start, 1, end); |
| if (do_debug_frames_interp) |
| frame_display_row (fc, &need_col_headers, &max_regs); |
| else |
| printf (" DW_CFA_advance_loc1: %ld to %s\n", |
| (unsigned long) (ofs * fc->code_factor), |
| dwarf_vmatoa_1 (NULL, |
| fc->pc_begin + ofs * fc->code_factor, |
| fc->ptr_size)); |
| fc->pc_begin += ofs * fc->code_factor; |
| break; |
| |
| case DW_CFA_advance_loc2: |
| SAFE_BYTE_GET_AND_INC (ofs, start, 2, block_end); |
| if (do_debug_frames_interp) |
| frame_display_row (fc, &need_col_headers, &max_regs); |
| else |
| printf (" DW_CFA_advance_loc2: %ld to %s\n", |
| (unsigned long) (ofs * fc->code_factor), |
| dwarf_vmatoa_1 (NULL, |
| fc->pc_begin + ofs * fc->code_factor, |
| fc->ptr_size)); |
| fc->pc_begin += ofs * fc->code_factor; |
| break; |
| |
| case DW_CFA_advance_loc4: |
| SAFE_BYTE_GET_AND_INC (ofs, start, 4, block_end); |
| if (do_debug_frames_interp) |
| frame_display_row (fc, &need_col_headers, &max_regs); |
| else |
| printf (" DW_CFA_advance_loc4: %ld to %s\n", |
| (unsigned long) (ofs * fc->code_factor), |
| dwarf_vmatoa_1 (NULL, |
| fc->pc_begin + ofs * fc->code_factor, |
| fc->ptr_size)); |
| fc->pc_begin += ofs * fc->code_factor; |
| break; |
| |
| case DW_CFA_offset_extended: |
| reg = LEB (); |
| roffs = LEB (); |
| if (reg >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_offset_extended: %s%s at cfa%+ld\n", |
| reg_prefix, regname (reg, 0), |
| roffs * fc->data_factor); |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[reg] = DW_CFA_offset; |
| fc->col_offset[reg] = roffs * fc->data_factor; |
| } |
| break; |
| |
| case DW_CFA_val_offset: |
| reg = LEB (); |
| roffs = LEB (); |
| if (reg >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_val_offset: %s%s is cfa%+ld\n", |
| reg_prefix, regname (reg, 0), |
| roffs * fc->data_factor); |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[reg] = DW_CFA_val_offset; |
| fc->col_offset[reg] = roffs * fc->data_factor; |
| } |
| break; |
| |
| case DW_CFA_restore_extended: |
| reg = LEB (); |
| if (reg >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_restore_extended: %s%s\n", |
| reg_prefix, regname (reg, 0)); |
| if (*reg_prefix != '\0') |
| break; |
| |
| if (reg >= (unsigned int) cie->ncols) |
| { |
| fc->col_type[reg] = DW_CFA_undefined; |
| fc->col_offset[reg] = 0; |
| } |
| else |
| { |
| fc->col_type[reg] = cie->col_type[reg]; |
| fc->col_offset[reg] = cie->col_offset[reg]; |
| } |
| break; |
| |
| case DW_CFA_undefined: |
| reg = LEB (); |
| if (reg >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_undefined: %s%s\n", |
| reg_prefix, regname (reg, 0)); |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[reg] = DW_CFA_undefined; |
| fc->col_offset[reg] = 0; |
| } |
| break; |
| |
| case DW_CFA_same_value: |
| reg = LEB (); |
| if (reg >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_same_value: %s%s\n", |
| reg_prefix, regname (reg, 0)); |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[reg] = DW_CFA_same_value; |
| fc->col_offset[reg] = 0; |
| } |
| break; |
| |
| case DW_CFA_register: |
| reg = LEB (); |
| roffs = LEB (); |
| if (reg >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| { |
| printf (" DW_CFA_register: %s%s in ", |
| reg_prefix, regname (reg, 0)); |
| puts (regname (roffs, 0)); |
| } |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[reg] = DW_CFA_register; |
| fc->col_offset[reg] = roffs; |
| } |
| break; |
| |
| case DW_CFA_remember_state: |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_remember_state\n"); |
| rs = (Frame_Chunk *) xmalloc (sizeof (Frame_Chunk)); |
| rs->cfa_offset = fc->cfa_offset; |
| rs->cfa_reg = fc->cfa_reg; |
| rs->ra = fc->ra; |
| rs->cfa_exp = fc->cfa_exp; |
| rs->ncols = fc->ncols; |
| rs->col_type = (short int *) xcmalloc (rs->ncols, |
| sizeof (* rs->col_type)); |
| rs->col_offset = (int *) xcmalloc (rs->ncols, sizeof (* rs->col_offset)); |
| memcpy (rs->col_type, fc->col_type, rs->ncols * sizeof (* fc->col_type)); |
| memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (* fc->col_offset)); |
| rs->next = remembered_state; |
| remembered_state = rs; |
| break; |
| |
| case DW_CFA_restore_state: |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_restore_state\n"); |
| rs = remembered_state; |
| if (rs) |
| { |
| remembered_state = rs->next; |
| fc->cfa_offset = rs->cfa_offset; |
| fc->cfa_reg = rs->cfa_reg; |
| fc->ra = rs->ra; |
| fc->cfa_exp = rs->cfa_exp; |
| if (frame_need_space (fc, rs->ncols - 1) < 0) |
| { |
| warn (_("Invalid column number in saved frame state\n")); |
| fc->ncols = 0; |
| break; |
| } |
| memcpy (fc->col_type, rs->col_type, rs->ncols * sizeof (* rs->col_type)); |
| memcpy (fc->col_offset, rs->col_offset, |
| rs->ncols * sizeof (* rs->col_offset)); |
| free (rs->col_type); |
| free (rs->col_offset); |
| free (rs); |
| } |
| else if (do_debug_frames_interp) |
| printf ("Mismatched DW_CFA_restore_state\n"); |
| break; |
| |
| case DW_CFA_def_cfa: |
| fc->cfa_reg = LEB (); |
| fc->cfa_offset = LEB (); |
| fc->cfa_exp = 0; |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_def_cfa: %s ofs %d\n", |
| regname (fc->cfa_reg, 0), (int) fc->cfa_offset); |
| break; |
| |
| case DW_CFA_def_cfa_register: |
| fc->cfa_reg = LEB (); |
| fc->cfa_exp = 0; |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_def_cfa_register: %s\n", |
| regname (fc->cfa_reg, 0)); |
| break; |
| |
| case DW_CFA_def_cfa_offset: |
| fc->cfa_offset = LEB (); |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_def_cfa_offset: %d\n", (int) fc->cfa_offset); |
| break; |
| |
| case DW_CFA_nop: |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_nop\n"); |
| break; |
| |
| case DW_CFA_def_cfa_expression: |
| ul = LEB (); |
| if (start >= block_end || ul > (unsigned long) (block_end - start)) |
| { |
| printf (_(" DW_CFA_def_cfa_expression: <corrupt len %lu>\n"), ul); |
| break; |
| } |
| if (! do_debug_frames_interp) |
| { |
| printf (" DW_CFA_def_cfa_expression ("); |
| decode_location_expression (start, eh_addr_size, 0, -1, |
| ul, 0, section); |
| printf (")\n"); |
| } |
| fc->cfa_exp = 1; |
| start += ul; |
| break; |
| |
| case DW_CFA_expression: |
| reg = LEB (); |
| ul = LEB (); |
| if (reg >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| /* PR 17512: file: 069-133014-0.006. */ |
| /* PR 17512: file: 98c02eb4. */ |
| tmp = start + ul; |
| if (start >= block_end || tmp > block_end || tmp < start) |
| { |
| printf (_(" DW_CFA_expression: <corrupt len %lu>\n"), ul); |
| break; |
| } |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| { |
| printf (" DW_CFA_expression: %s%s (", |
| reg_prefix, regname (reg, 0)); |
| decode_location_expression (start, eh_addr_size, 0, -1, |
| ul, 0, section); |
| printf (")\n"); |
| } |
| if (*reg_prefix == '\0') |
| fc->col_type[reg] = DW_CFA_expression; |
| start = tmp; |
| break; |
| |
| case DW_CFA_val_expression: |
| reg = LEB (); |
| ul = LEB (); |
| if (reg >= (unsigned int) fc->ncols) |
| reg_prefix = bad_reg; |
| tmp = start + ul; |
| if (start >= block_end || tmp > block_end || tmp < start) |
| { |
| printf (" DW_CFA_val_expression: <corrupt len %lu>\n", ul); |
| break; |
| } |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| { |
| printf (" DW_CFA_val_expression: %s%s (", |
| reg_prefix, regname (reg, 0)); |
| decode_location_expression (start, eh_addr_size, 0, -1, |
| ul, 0, section); |
| printf (")\n"); |
| } |
| if (*reg_prefix == '\0') |
| fc->col_type[reg] = DW_CFA_val_expression; |
| start = tmp; |
| break; |
| |
| case DW_CFA_offset_extended_sf: |
| reg = LEB (); |
| l = SLEB (); |
| if (frame_need_space (fc, reg) < 0) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_offset_extended_sf: %s%s at cfa%+ld\n", |
| reg_prefix, regname (reg, 0), |
| (long)(l * fc->data_factor)); |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[reg] = DW_CFA_offset; |
| fc->col_offset[reg] = l * fc->data_factor; |
| } |
| break; |
| |
| case DW_CFA_val_offset_sf: |
| reg = LEB (); |
| l = SLEB (); |
| if (frame_need_space (fc, reg) < 0) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_val_offset_sf: %s%s is cfa%+ld\n", |
| reg_prefix, regname (reg, 0), |
| (long)(l * fc->data_factor)); |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[reg] = DW_CFA_val_offset; |
| fc->col_offset[reg] = l * fc->data_factor; |
| } |
| break; |
| |
| case DW_CFA_def_cfa_sf: |
| fc->cfa_reg = LEB (); |
| fc->cfa_offset = SLEB (); |
| fc->cfa_offset = fc->cfa_offset * fc->data_factor; |
| fc->cfa_exp = 0; |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_def_cfa_sf: %s ofs %d\n", |
| regname (fc->cfa_reg, 0), (int) fc->cfa_offset); |
| break; |
| |
| case DW_CFA_def_cfa_offset_sf: |
| fc->cfa_offset = SLEB (); |
| fc->cfa_offset *= fc->data_factor; |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_def_cfa_offset_sf: %d\n", (int) fc->cfa_offset); |
| break; |
| |
| case DW_CFA_MIPS_advance_loc8: |
| SAFE_BYTE_GET_AND_INC (ofs, start, 8, block_end); |
| if (do_debug_frames_interp) |
| frame_display_row (fc, &need_col_headers, &max_regs); |
| else |
| printf (" DW_CFA_MIPS_advance_loc8: %ld to %s\n", |
| (unsigned long) (ofs * fc->code_factor), |
| dwarf_vmatoa_1 (NULL, |
| fc->pc_begin + ofs * fc->code_factor, |
| fc->ptr_size)); |
| fc->pc_begin += ofs * fc->code_factor; |
| break; |
| |
| case DW_CFA_GNU_window_save: |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_GNU_window_save\n"); |
| break; |
| |
| case DW_CFA_GNU_args_size: |
| ul = LEB (); |
| if (! do_debug_frames_interp) |
| printf (" DW_CFA_GNU_args_size: %ld\n", ul); |
| break; |
| |
| case DW_CFA_GNU_negative_offset_extended: |
| reg = LEB (); |
| l = - LEB (); |
| if (frame_need_space (fc, reg) < 0) |
| reg_prefix = bad_reg; |
| if (! do_debug_frames_interp || *reg_prefix != '\0') |
| printf (" DW_CFA_GNU_negative_offset_extended: %s%s at cfa%+ld\n", |
| reg_prefix, regname (reg, 0), |
| (long)(l * fc->data_factor)); |
| if (*reg_prefix == '\0') |
| { |
| fc->col_type[reg] = DW_CFA_offset; |
| fc->col_offset[reg] = l * fc->data_factor; |
| } |
| break; |
| |
| default: |
| if (op >= DW_CFA_lo_user && op <= DW_CFA_hi_user) |
| printf (_(" DW_CFA_??? (User defined call frame op: %#x)\n"), op); |
| else |
| warn (_("Unsupported or unknown Dwarf Call Frame Instruction number: %#x\n"), op); |
| start = block_end; |
| } |
| } |
| |
| /* Interpret the CFA - as long as it is not completely full of NOPs. */ |
| if (do_debug_frames_interp && ! all_nops) |
| frame_display_row (fc, &need_col_headers, &max_regs); |
| |
| start = block_end; |
| eh_addr_size = saved_eh_addr_size; |
| } |
| |
| printf ("\n"); |
| |
| return 1; |
| } |
| |
| #undef GET |
| #undef LEB |
| #undef SLEB |
| |
| static int |
| display_gdb_index (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| unsigned char *start = section->start; |
| uint32_t version; |
| uint32_t cu_list_offset, tu_list_offset; |
| uint32_t address_table_offset, symbol_table_offset, constant_pool_offset; |
| unsigned int cu_list_elements, tu_list_elements; |
| unsigned int address_table_size, symbol_table_slots; |
| unsigned char *cu_list, *tu_list; |
| unsigned char *address_table, *symbol_table, *constant_pool; |
| unsigned int i; |
| |
| /* The documentation for the format of this file is in gdb/dwarf2read.c. */ |
| |
| printf (_("Contents of the %s section:\n"), section->name); |
| |
| if (section->size < 6 * sizeof (uint32_t)) |
| { |
| warn (_("Truncated header in the %s section.\n"), section->name); |
| return 0; |
| } |
| |
| version = byte_get_little_endian (start, 4); |
| printf (_("Version %ld\n"), (long) version); |
| |
| /* Prior versions are obsolete, and future versions may not be |
| backwards compatible. */ |
| if (version < 3 || version > 8) |
| { |
| warn (_("Unsupported version %lu.\n"), (unsigned long) version); |
| return 0; |
| } |
| if (version < 4) |
| warn (_("The address table data in version 3 may be wrong.\n")); |
| if (version < 5) |
| warn (_("Version 4 does not support case insensitive lookups.\n")); |
| if (version < 6) |
| warn (_("Version 5 does not include inlined functions.\n")); |
| if (version < 7) |
| warn (_("Version 6 does not include symbol attributes.\n")); |
| /* Version 7 indices generated by Gold have bad type unit references, |
| PR binutils/15021. But we don't know if the index was generated by |
| Gold or not, so to avoid worrying users with gdb-generated indices |
| we say nothing for version 7 here. */ |
| |
| cu_list_offset = byte_get_little_endian (start + 4, 4); |
| tu_list_offset = byte_get_little_endian (start + 8, 4); |
| address_table_offset = byte_get_little_endian (start + 12, 4); |
| symbol_table_offset = byte_get_little_endian (start + 16, 4); |
| constant_pool_offset = byte_get_little_endian (start + 20, 4); |
| |
| if (cu_list_offset > section->size |
| || tu_list_offset > section->size |
| || address_table_offset > section->size |
| || symbol_table_offset > section->size |
| || constant_pool_offset > section->size) |
| { |
| warn (_("Corrupt header in the %s section.\n"), section->name); |
| return 0; |
| } |
| |
| /* PR 17531: file: 418d0a8a. */ |
| if (tu_list_offset < cu_list_offset) |
| { |
| warn (_("TU offset (%x) is less than CU offset (%x)\n"), |
| tu_list_offset, cu_list_offset); |
| return 0; |
| } |
| |
| cu_list_elements = (tu_list_offset - cu_list_offset) / 8; |
| |
| if (address_table_offset < tu_list_offset) |
| { |
| warn (_("Address table offset (%x) is less than TU offset (%x)\n"), |
| address_table_offset, tu_list_offset); |
| return 0; |
| } |
| |
| tu_list_elements = (address_table_offset - tu_list_offset) / 8; |
| |
| /* PR 17531: file: 18a47d3d. */ |
| if (symbol_table_offset < address_table_offset) |
| { |
| warn (_("Symbol table offset (%xl) is less then Address table offset (%x)\n"), |
| symbol_table_offset, address_table_offset); |
| return 0; |
| } |
| |
| address_table_size = symbol_table_offset - address_table_offset; |
| |
| if (constant_pool_offset < symbol_table_offset) |
| { |
| warn (_("Constant pool offset (%x) is less than symbol table offset (%x)\n"), |
| constant_pool_offset, symbol_table_offset); |
| return 0; |
| } |
| |
| symbol_table_slots = (constant_pool_offset - symbol_table_offset) / 8; |
| |
| cu_list = start + cu_list_offset; |
| tu_list = start + tu_list_offset; |
| address_table = start + address_table_offset; |
| symbol_table = start + symbol_table_offset; |
| constant_pool = start + constant_pool_offset; |
| |
| if (address_table + address_table_size * (2 + 8 + 4) > section->start + section->size) |
| { |
| warn (_("Address table extends beyond end of section.\n")); |
| return 0; |
| } |
| |
| printf (_("\nCU table:\n")); |
| for (i = 0; i < cu_list_elements; i += 2) |
| { |
| uint64_t cu_offset = byte_get_little_endian (cu_list + i * 8, 8); |
| uint64_t cu_length = byte_get_little_endian (cu_list + i * 8 + 8, 8); |
| |
| printf (_("[%3u] 0x%lx - 0x%lx\n"), i / 2, |
| (unsigned long) cu_offset, |
| (unsigned long) (cu_offset + cu_length - 1)); |
| } |
| |
| printf (_("\nTU table:\n")); |
| for (i = 0; i < tu_list_elements; i += 3) |
| { |
| uint64_t tu_offset = byte_get_little_endian (tu_list + i * 8, 8); |
| uint64_t type_offset = byte_get_little_endian (tu_list + i * 8 + 8, 8); |
| uint64_t signature = byte_get_little_endian (tu_list + i * 8 + 16, 8); |
| |
| printf (_("[%3u] 0x%lx 0x%lx "), i / 3, |
| (unsigned long) tu_offset, |
| (unsigned long) type_offset); |
| print_dwarf_vma (signature, 8); |
| printf ("\n"); |
| } |
| |
| printf (_("\nAddress table:\n")); |
| for (i = 0; i < address_table_size && i <= address_table_size - (2 * 8 + 4); |
| i += 2 * 8 + 4) |
| { |
| uint64_t low = byte_get_little_endian (address_table + i, 8); |
| uint64_t high = byte_get_little_endian (address_table + i + 8, 8); |
| uint32_t cu_index = byte_get_little_endian (address_table + i + 16, 4); |
| |
| print_dwarf_vma (low, 8); |
| print_dwarf_vma (high, 8); |
| printf (_("%lu\n"), (unsigned long) cu_index); |
| } |
| |
| printf (_("\nSymbol table:\n")); |
| for (i = 0; i < symbol_table_slots; ++i) |
| { |
| uint32_t name_offset = byte_get_little_endian (symbol_table + i * 8, 4); |
| uint32_t cu_vector_offset = byte_get_little_endian (symbol_table + i * 8 + 4, 4); |
| uint32_t num_cus, cu; |
| |
| if (name_offset != 0 |
| || cu_vector_offset != 0) |
| { |
| unsigned int j; |
| unsigned char * adr; |
| |
| adr = constant_pool + name_offset; |
| /* PR 17531: file: 5b7b07ad. */ |
| if (adr < constant_pool || adr >= section->start + section->size) |
| { |
| printf (_("[%3u] <corrupt offset: %x>"), i, name_offset); |
| warn (_("Corrupt name offset of 0x%x found for symbol table slot %d\n"), |
| name_offset, i); |
| } |
| else |
| printf ("[%3u] %.*s:", i, |
| (int) (section->size - (constant_pool_offset + name_offset)), |
| constant_pool + name_offset); |
| |
| adr = constant_pool + cu_vector_offset; |
| if (adr < constant_pool || adr >= section->start + section->size - 3) |
| { |
| printf (_("<invalid CU vector offset: %x>\n"), cu_vector_offset); |
| warn (_("Corrupt CU vector offset of 0x%x found for symbol table slot %d\n"), |
| cu_vector_offset, i); |
| continue; |
| } |
| |
| num_cus = byte_get_little_endian (adr, 4); |
| |
| adr = constant_pool + cu_vector_offset + 4 + num_cus * 4; |
| if (num_cus * 4 < num_cus |
| || adr >= section->start + section->size |
| || adr < constant_pool) |
| { |
| printf ("<invalid number of CUs: %d>\n", num_cus); |
| warn (_("Invalid number of CUs (0x%x) for symbol table slot %d\n"), |
| num_cus, i); |
| continue; |
| } |
| |
| if (num_cus > 1) |
| printf ("\n"); |
| |
| for (j = 0; j < num_cus; ++j) |
| { |
| int is_static; |
| gdb_index_symbol_kind kind; |
| |
| cu = byte_get_little_endian (constant_pool + cu_vector_offset + 4 + j * 4, 4); |
| is_static = GDB_INDEX_SYMBOL_STATIC_VALUE (cu); |
| kind = GDB_INDEX_SYMBOL_KIND_VALUE (cu); |
| cu = GDB_INDEX_CU_VALUE (cu); |
| /* Convert to TU number if it's for a type unit. */ |
| if (cu >= cu_list_elements / 2) |
| printf ("%cT%lu", num_cus > 1 ? '\t' : ' ', |
| (unsigned long) (cu - cu_list_elements / 2)); |
| else |
| printf ("%c%lu", num_cus > 1 ? '\t' : ' ', (unsigned long) cu); |
| |
| printf (" [%s, %s]", |
| is_static ? _("static") : _("global"), |
| get_gdb_index_symbol_kind_name (kind)); |
| if (num_cus > 1) |
| printf ("\n"); |
| } |
| if (num_cus <= 1) |
| printf ("\n"); |
| } |
| } |
| |
| return 1; |
| } |
| |
| /* Pre-allocate enough space for the CU/TU sets needed. */ |
| |
| static void |
| prealloc_cu_tu_list (unsigned int nshndx) |
| { |
| if (shndx_pool == NULL) |
| { |
| shndx_pool_size = nshndx; |
| shndx_pool_used = 0; |
| shndx_pool = (unsigned int *) xcmalloc (shndx_pool_size, |
| sizeof (unsigned int)); |
| } |
| else |
| { |
| shndx_pool_size = shndx_pool_used + nshndx; |
| shndx_pool = (unsigned int *) xcrealloc (shndx_pool, shndx_pool_size, |
| sizeof (unsigned int)); |
| } |
| } |
| |
| static void |
| add_shndx_to_cu_tu_entry (unsigned int shndx) |
| { |
| if (shndx_pool_used >= shndx_pool_size) |
| { |
| error (_("Internal error: out of space in the shndx pool.\n")); |
| return; |
| } |
| shndx_pool [shndx_pool_used++] = shndx; |
| } |
| |
| static void |
| end_cu_tu_entry (void) |
| { |
| if (shndx_pool_used >= shndx_pool_size) |
| { |
| error (_("Internal error: out of space in the shndx pool.\n")); |
| return; |
| } |
| shndx_pool [shndx_pool_used++] = 0; |
| } |
| |
| /* Return the short name of a DWARF section given by a DW_SECT enumerator. */ |
| |
| static const char * |
| get_DW_SECT_short_name (unsigned int dw_sect) |
| { |
| static char buf[16]; |
| |
| switch (dw_sect) |
| { |
| case DW_SECT_INFO: |
| return "info"; |
| case DW_SECT_TYPES: |
| return "types"; |
| case DW_SECT_ABBREV: |
| return "abbrev"; |
| case DW_SECT_LINE: |
| return "line"; |
| case DW_SECT_LOC: |
| return "loc"; |
| case DW_SECT_STR_OFFSETS: |
| return "str_off"; |
| case DW_SECT_MACINFO: |
| return "macinfo"; |
| case DW_SECT_MACRO: |
| return "macro"; |
| default: |
| break; |
| } |
| |
| snprintf (buf, sizeof (buf), "%d", dw_sect); |
| return buf; |
| } |
| |
| /* Process a CU or TU index. If DO_DISPLAY is true, print the contents. |
| These sections are extensions for Fission. |
| See http://gcc.gnu.org/wiki/DebugFissionDWP. */ |
| |
| static int |
| process_cu_tu_index (struct dwarf_section *section, int do_display) |
| { |
| unsigned char *phdr = section->start; |
| unsigned char *limit = phdr + section->size; |
| unsigned char *phash; |
| unsigned char *pindex; |
| unsigned char *ppool; |
| unsigned int version; |
| unsigned int ncols = 0; |
| unsigned int nused; |
| unsigned int nslots; |
| unsigned int i; |
| unsigned int j; |
| dwarf_vma signature_high; |
| dwarf_vma signature_low; |
| char buf[64]; |
| |
| /* PR 17512: file: 002-168123-0.004. */ |
| if (phdr == NULL) |
| { |
| warn (_("Section %s is empty\n"), section->name); |
| return 0; |
| } |
| /* PR 17512: file: 002-376-0.004. */ |
| if (section->size < 24) |
| { |
| warn (_("Section %s is too small to contain a CU/TU header\n"), |
| section->name); |
| return 0; |
| } |
| |
| SAFE_BYTE_GET (version, phdr, 4, limit); |
| if (version >= 2) |
| SAFE_BYTE_GET (ncols, phdr + 4, 4, limit); |
| SAFE_BYTE_GET (nused, phdr + 8, 4, limit); |
| SAFE_BYTE_GET (nslots, phdr + 12, 4, limit); |
| |
| phash = phdr + 16; |
| pindex = phash + nslots * 8; |
| ppool = pindex + nslots * 4; |
| |
| /* PR 17531: file: 45d69832. */ |
| if (pindex < phash || ppool < phdr || (pindex == phash && nslots != 0)) |
| { |
| warn (_("Section %s is too small for %d slots\n"), |
| section->name, nslots); |
| return 0; |
| } |
| |
| if (do_display) |
| { |
| printf (_("Contents of the %s section:\n\n"), section->name); |
| printf (_(" Version: %d\n"), version); |
| if (version >= 2) |
| printf (_(" Number of columns: %d\n"), ncols); |
| printf (_(" Number of used entries: %d\n"), nused); |
| printf (_(" Number of slots: %d\n\n"), nslots); |
| } |
| |
| if (ppool > limit || ppool < phdr) |
| { |
| warn (_("Section %s too small for %d hash table entries\n"), |
| section->name, nslots); |
| return 0; |
| } |
| |
| if (version == 1) |
| { |
| if (!do_display) |
| prealloc_cu_tu_list ((limit - ppool) / 4); |
| for (i = 0; i < nslots; i++) |
| { |
| unsigned char *shndx_list; |
| unsigned int shndx; |
| |
| SAFE_BYTE_GET64 (phash, &signature_high, &signature_low, limit); |
| if (signature_high != 0 || signature_low != 0) |
| { |
| SAFE_BYTE_GET (j, pindex, 4, limit); |
| shndx_list = ppool + j * 4; |
| /* PR 17531: file: 705e010d. */ |
| if (shndx_list < ppool) |
| { |
| warn (_("Section index pool located before start of section\n")); |
| return 0; |
| } |
| |
| if (do_display) |
| printf (_(" [%3d] Signature: 0x%s Sections: "), |
| i, dwarf_vmatoa64 (signature_high, signature_low, |
| buf, sizeof (buf))); |
| for (;;) |
| { |
| if (shndx_list >= limit) |
| { |
| warn (_("Section %s too small for shndx pool\n"), |
| section->name); |
| return 0; |
| } |
| SAFE_BYTE_GET (shndx, shndx_list, 4, limit); |
| if (shndx == 0) |
| break; |
| if (do_display) |
| printf (" %d", shndx); |
| else |
| add_shndx_to_cu_tu_entry (shndx); |
| shndx_list += 4; |
| } |
| if (do_display) |
| printf ("\n"); |
| else |
| end_cu_tu_entry (); |
| } |
| phash += 8; |
| pindex += 4; |
| } |
| } |
| else if (version == 2) |
| { |
| unsigned int val; |
| unsigned int dw_sect; |
| unsigned char *ph = phash; |
| unsigned char *pi = pindex; |
| unsigned char *poffsets = ppool + ncols * 4; |
| unsigned char *psizes = poffsets + nused * ncols * 4; |
| unsigned char *pend = psizes + nused * ncols * 4; |
| bfd_boolean is_tu_index; |
| struct cu_tu_set *this_set = NULL; |
| unsigned int row; |
| unsigned char *prow; |
| |
| is_tu_index = strcmp (section->name, ".debug_tu_index") == 0; |
| |
| /* PR 17531: file: 0dd159bf. |
| Check for wraparound with an overlarge ncols value. */ |
| if (poffsets < ppool || (unsigned int) ((poffsets - ppool) / 4) != ncols) |
| { |
| warn (_("Overlarge number of columns: %x\n"), ncols); |
| return 0; |
| } |
| |
| if (pend > limit) |
| { |
| warn (_("Section %s too small for offset and size tables\n"), |
| section->name); |
| return 0; |
| } |
| |
| if (do_display) |
| { |
| printf (_(" Offset table\n")); |
| printf (" slot %-16s ", |
| is_tu_index ? _("signature") : _("dwo_id")); |
| } |
| else |
| { |
| if (is_tu_index) |
| { |
| tu_count = nused; |
| tu_sets = xcalloc2 (nused, sizeof (struct cu_tu_set)); |
| this_set = tu_sets; |
| } |
| else |
| { |
| cu_count = nused; |
| cu_sets = xcalloc2 (nused, sizeof (struct cu_tu_set)); |
| this_set = cu_sets; |
| } |
| } |
| |
| if (do_display) |
| { |
| for (j = 0; j < ncols; j++) |
| { |
| SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| printf (" %8s", get_DW_SECT_short_name (dw_sect)); |
| } |
| printf ("\n"); |
| } |
| |
| for (i = 0; i < nslots; i++) |
| { |
| SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit); |
| |
| SAFE_BYTE_GET (row, pi, 4, limit); |
| if (row != 0) |
| { |
| /* PR 17531: file: a05f6ab3. */ |
| if (row > nused) |
| { |
| warn (_("Row index (%u) is larger than number of used entries (%u)\n"), |
| row, nused); |
| return 0; |
| } |
| |
| if (!do_display) |
| memcpy (&this_set[row - 1].signature, ph, sizeof (uint64_t)); |
| |
| prow = poffsets + (row - 1) * ncols * 4; |
| /* PR 17531: file: b8ce60a8. */ |
| if (prow < poffsets || prow > limit) |
| { |
| warn (_("Row index (%u) * num columns (%u) > space remaining in section\n"), |
| row, ncols); |
| return 0; |
| } |
| |
| if (do_display) |
| printf (_(" [%3d] 0x%s"), |
| i, dwarf_vmatoa64 (signature_high, signature_low, |
| buf, sizeof (buf))); |
| for (j = 0; j < ncols; j++) |
| { |
| SAFE_BYTE_GET (val, prow + j * 4, 4, limit); |
| if (do_display) |
| printf (" %8d", val); |
| else |
| { |
| SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| |
| /* PR 17531: file: 10796eb3. */ |
| if (dw_sect >= DW_SECT_MAX) |
| warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect); |
| else |
| this_set [row - 1].section_offsets [dw_sect] = val; |
| } |
| } |
| |
| if (do_display) |
| printf ("\n"); |
| } |
| ph += 8; |
| pi += 4; |
| } |
| |
| ph = phash; |
| pi = pindex; |
| if (do_display) |
| { |
| printf ("\n"); |
| printf (_(" Size table\n")); |
| printf (" slot %-16s ", |
| is_tu_index ? _("signature") : _("dwo_id")); |
| } |
| |
| for (j = 0; j < ncols; j++) |
| { |
| SAFE_BYTE_GET (val, ppool + j * 4, 4, limit); |
| if (do_display) |
| printf (" %8s", get_DW_SECT_short_name (val)); |
| } |
| |
| if (do_display) |
| printf ("\n"); |
| |
| for (i = 0; i < nslots; i++) |
| { |
| SAFE_BYTE_GET64 (ph, &signature_high, &signature_low, limit); |
| |
| SAFE_BYTE_GET (row, pi, 4, limit); |
| if (row != 0) |
| { |
| prow = psizes + (row - 1) * ncols * 4; |
| |
| if (do_display) |
| printf (_(" [%3d] 0x%s"), |
| i, dwarf_vmatoa64 (signature_high, signature_low, |
| buf, sizeof (buf))); |
| |
| for (j = 0; j < ncols; j++) |
| { |
| SAFE_BYTE_GET (val, prow + j * 4, 4, limit); |
| if (do_display) |
| printf (" %8d", val); |
| else |
| { |
| SAFE_BYTE_GET (dw_sect, ppool + j * 4, 4, limit); |
| if (dw_sect >= DW_SECT_MAX) |
| warn (_("Overlarge Dwarf section index detected: %u\n"), dw_sect); |
| else |
| this_set [row - 1].section_sizes [dw_sect] = val; |
| } |
| } |
| |
| if (do_display) |
| printf ("\n"); |
| } |
| |
| ph += 8; |
| pi += 4; |
| } |
| } |
| else if (do_display) |
| printf (_(" Unsupported version (%d)\n"), version); |
| |
| if (do_display) |
| printf ("\n"); |
| |
| return 1; |
| } |
| |
| /* Load the CU and TU indexes if present. This will build a list of |
| section sets that we can use to associate a .debug_info.dwo section |
| with its associated .debug_abbrev.dwo section in a .dwp file. */ |
| |
| static void |
| load_cu_tu_indexes (void *file) |
| { |
| /* If we have already loaded (or tried to load) the CU and TU indexes |
| then do not bother to repeat the task. */ |
| if (cu_tu_indexes_read) |
| return; |
| |
| if (load_debug_section (dwp_cu_index, file)) |
| process_cu_tu_index (&debug_displays [dwp_cu_index].section, 0); |
| |
| if (load_debug_section (dwp_tu_index, file)) |
| process_cu_tu_index (&debug_displays [dwp_tu_index].section, 0); |
| |
| cu_tu_indexes_read = 1; |
| } |
| |
| /* Find the set of sections that includes section SHNDX. */ |
| |
| unsigned int * |
| find_cu_tu_set (void *file, unsigned int shndx) |
| { |
| unsigned int i; |
| |
| load_cu_tu_indexes (file); |
| |
| /* Find SHNDX in the shndx pool. */ |
| for (i = 0; i < shndx_pool_used; i++) |
| if (shndx_pool [i] == shndx) |
| break; |
| |
| if (i >= shndx_pool_used) |
| return NULL; |
| |
| /* Now backup to find the first entry in the set. */ |
| while (i > 0 && shndx_pool [i - 1] != 0) |
| i--; |
| |
| return shndx_pool + i; |
| } |
| |
| /* Display a .debug_cu_index or .debug_tu_index section. */ |
| |
| static int |
| display_cu_index (struct dwarf_section *section, void *file ATTRIBUTE_UNUSED) |
| { |
| return process_cu_tu_index (section, 1); |
| } |
| |
| static int |
| display_debug_not_supported (struct dwarf_section *section, |
| void *file ATTRIBUTE_UNUSED) |
| { |
| printf (_("Displaying the debug contents of section %s is not yet supported.\n"), |
| section->name); |
| |
| return 1; |
| } |
| |
| /* Like malloc, but takes two parameters like calloc. |
| Verifies that the first parameter is not too large. |
| Note: does *not* initialise the allocated memory to zero. */ |
| void * |
| cmalloc (size_t nmemb, size_t size) |
| { |
| /* Check for overflow. */ |
| if (nmemb >= ~(size_t) 0 / size) |
| return NULL; |
| |
| return xmalloc (nmemb * size); |
| } |
| |
| /* Like xmalloc, but takes two parameters like calloc. |
| Verifies that the first parameter is not too large. |
| Note: does *not* initialise the allocated memory to zero. */ |
| void * |
| xcmalloc (size_t nmemb, size_t size) |
| { |
| /* Check for overflow. */ |
| if (nmemb >= ~(size_t) 0 / size) |
| { |
| fprintf (stderr, |
| _("Attempt to allocate an array with an excessive number of elements: 0x%lx\n"), |
| (long) nmemb); |
| xexit (1); |
| } |
| |
| return xmalloc (nmemb * size); |
| } |
| |
| /* Like xrealloc, but takes three parameters. |
| Verifies that the second parameter is not too large. |
| Note: does *not* initialise any new memory to zero. */ |
| void * |
| xcrealloc (void *ptr, size_t nmemb, size_t size) |
| { |
| /* Check for overflow. */ |
| if (nmemb >= ~(size_t) 0 / size) |
| { |
| fprintf (stderr, |
| _("Attempt to re-allocate an array with an excessive number of elements: 0x%lx\n"), |
| (long) nmemb); |
| xexit (1); |
| } |
| |
| return xrealloc (ptr, nmemb * size); |
| } |
| |
| /* Like xcalloc, but verifies that the first parameter is not too large. */ |
| void * |
| xcalloc2 (size_t nmemb, size_t size) |
| { |
| /* Check for overflow. */ |
| if (nmemb >= ~(size_t) 0 / size) |
| { |
| fprintf (stderr, |
| _("Attempt to allocate a zero'ed array with an excessive number of elements: 0x%lx\n"), |
| (long) nmemb); |
| xexit (1); |
| } |
| |
| return xcalloc (nmemb, size); |
| } |
| |
| void |
| free_debug_memory (void) |
| { |
| unsigned int i; |
| |
| free_abbrevs (); |
| |
| for (i = 0; i < max; i++) |
| free_debug_section ((enum dwarf_section_display_enum) i); |
| |
| if (debug_information != NULL) |
| { |
| if (num_debug_info_entries != DEBUG_INFO_UNAVAILABLE) |
| { |
| for (i = 0; i < num_debug_info_entries; i++) |
| { |
| if (!debug_information [i].max_loc_offsets) |
| { |
| free (debug_information [i].loc_offsets); |
| free (debug_information [i].have_frame_base); |
| } |
| if (!debug_information [i].max_range_lists) |
| free (debug_information [i].range_lists); |
| } |
| } |
| free (debug_information); |
| debug_information = NULL; |
| alloc_num_debug_info_entries = num_debug_info_entries = 0; |
| } |
| } |
| |
| void |
| dwarf_select_sections_by_names (const char *names) |
| { |
| typedef struct |
| { |
| const char * option; |
| int * variable; |
| int val; |
| } |
| debug_dump_long_opts; |
| |
| static const debug_dump_long_opts opts_table [] = |
| { |
| /* Please keep this table alpha- sorted. */ |
| { "Ranges", & do_debug_ranges, 1 }, |
| { "abbrev", & do_debug_abbrevs, 1 }, |
| { "addr", & do_debug_addr, 1 }, |
| { "aranges", & do_debug_aranges, 1 }, |
| { "cu_index", & do_debug_cu_index, 1 }, |
| { "decodedline", & do_debug_lines, FLAG_DEBUG_LINES_DECODED }, |
| { "frames", & do_debug_frames, 1 }, |
| { "frames-interp", & do_debug_frames_interp, 1 }, |
| /* The special .gdb_index section. */ |
| { "gdb_index", & do_gdb_index, 1 }, |
| { "info", & do_debug_info, 1 }, |
| { "line", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, /* For backwards compatibility. */ |
| { "loc", & do_debug_loc, 1 }, |
| { "macro", & do_debug_macinfo, 1 }, |
| { "pubnames", & do_debug_pubnames, 1 }, |
| { "pubtypes", & do_debug_pubtypes, 1 }, |
| /* This entry is for compatibility |
| with earlier versions of readelf. */ |
| { "ranges", & do_debug_aranges, 1 }, |
| { "rawline", & do_debug_lines, FLAG_DEBUG_LINES_RAW }, |
| { "str", & do_debug_str, 1 }, |
| /* These trace_* sections are used by Itanium VMS. */ |
| { "trace_abbrev", & do_trace_abbrevs, 1 }, |
| { "trace_aranges", & do_trace_aranges, 1 }, |
| { "trace_info", & do_trace_info, 1 }, |
| { NULL, NULL, 0 } |
| }; |
| |
| const char *p; |
| |
| p = names; |
| while (*p) |
| { |
| const debug_dump_long_opts * entry; |
| |
| for (entry = opts_table; entry->option; entry++) |
| { |
| size_t len = strlen (entry->option); |
| |
| if (strncmp (p, entry->option, len) == 0 |
| && (p[len] == ',' || p[len] == '\0')) |
| { |
| * entry->variable |= entry->val; |
| |
| /* The --debug-dump=frames-interp option also |
| enables the --debug-dump=frames option. */ |
| if (do_debug_frames_interp) |
| do_debug_frames = 1; |
| |
| p += len; |
| break; |
| } |
| } |
| |
| if (entry->option == NULL) |
| { |
| warn (_("Unrecognized debug option '%s'\n"), p); |
| p = strchr (p, ','); |
| if (p == NULL) |
| break; |
| } |
| |
| if (*p == ',') |
| p++; |
| } |
| } |
| |
| void |
| dwarf_select_sections_by_letters (const char *letters) |
| { |
| unsigned int lindex = 0; |
| |
| while (letters[lindex]) |
| switch (letters[lindex++]) |
| { |
| case 'i': |
| do_debug_info = 1; |
| break; |
| |
| case 'a': |
| do_debug_abbrevs = 1; |
| break; |
| |
| case 'l': |
| do_debug_lines |= FLAG_DEBUG_LINES_RAW; |
| break; |
| |
| case 'L': |
| do_debug_lines |= FLAG_DEBUG_LINES_DECODED; |
| break; |
| |
| case 'p': |
| do_debug_pubnames = 1; |
| break; |
| |
| case 't': |
| do_debug_pubtypes = 1; |
| break; |
| |
| case 'r': |
| do_debug_aranges = 1; |
| break; |
| |
| case 'R': |
| do_debug_ranges = 1; |
| break; |
| |
| case 'F': |
| do_debug_frames_interp = 1; |
| /* Fall through. */ |
| case 'f': |
| do_debug_frames = 1; |
| break; |
| |
| case 'm': |
| do_debug_macinfo = 1; |
| break; |
| |
| case 's': |
| do_debug_str = 1; |
| break; |
| |
| case 'o': |
| do_debug_loc = 1; |
| break; |
| |
| default: |
| warn (_("Unrecognized debug option '%s'\n"), letters); |
| break; |
| } |
| } |
| |
| void |
| dwarf_select_sections_all (void) |
| { |
| do_debug_info = 1; |
| do_debug_abbrevs = 1; |
| do_debug_lines = FLAG_DEBUG_LINES_RAW; |
| do_debug_pubnames = 1; |
| do_debug_pubtypes = 1; |
| do_debug_aranges = 1; |
| do_debug_ranges = 1; |
| do_debug_frames = 1; |
| do_debug_macinfo = 1; |
| do_debug_str = 1; |
| do_debug_loc = 1; |
| do_gdb_index = 1; |
| do_trace_info = 1; |
| do_trace_abbrevs = 1; |
| do_trace_aranges = 1; |
| do_debug_addr = 1; |
| do_debug_cu_index = 1; |
| } |
| |
| struct dwarf_section_display debug_displays[] = |
| { |
| { { ".debug_abbrev", ".zdebug_abbrev", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_abbrev, &do_debug_abbrevs, FALSE }, |
| { { ".debug_aranges", ".zdebug_aranges", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_aranges, &do_debug_aranges, TRUE }, |
| { { ".debug_frame", ".zdebug_frame", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_frames, &do_debug_frames, TRUE }, |
| { { ".debug_info", ".zdebug_info", NULL, NULL, 0, 0, abbrev, NULL, 0, NULL }, |
| display_debug_info, &do_debug_info, TRUE }, |
| { { ".debug_line", ".zdebug_line", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_lines, &do_debug_lines, TRUE }, |
| { { ".debug_pubnames", ".zdebug_pubnames", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_pubnames, &do_debug_pubnames, FALSE }, |
| { { ".debug_gnu_pubnames", ".zdebug_gnu_pubnames", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_gnu_pubnames, &do_debug_pubnames, FALSE }, |
| { { ".eh_frame", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_frames, &do_debug_frames, TRUE }, |
| { { ".debug_macinfo", ".zdebug_macinfo", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_macinfo, &do_debug_macinfo, FALSE }, |
| { { ".debug_macro", ".zdebug_macro", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_macro, &do_debug_macinfo, TRUE }, |
| { { ".debug_str", ".zdebug_str", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_str, &do_debug_str, FALSE }, |
| { { ".debug_loc", ".zdebug_loc", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_loc, &do_debug_loc, TRUE }, |
| { { ".debug_pubtypes", ".zdebug_pubtypes", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_pubnames, &do_debug_pubtypes, FALSE }, |
| { { ".debug_gnu_pubtypes", ".zdebug_gnu_pubtypes", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_gnu_pubnames, &do_debug_pubtypes, FALSE }, |
| { { ".debug_ranges", ".zdebug_ranges", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_ranges, &do_debug_ranges, TRUE }, |
| { { ".debug_static_func", ".zdebug_static_func", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_not_supported, NULL, FALSE }, |
| { { ".debug_static_vars", ".zdebug_static_vars", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_not_supported, NULL, FALSE }, |
| { { ".debug_types", ".zdebug_types", NULL, NULL, 0, 0, abbrev, NULL, 0, NULL }, |
| display_debug_types, &do_debug_info, TRUE }, |
| { { ".debug_weaknames", ".zdebug_weaknames", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_not_supported, NULL, FALSE }, |
| { { ".gdb_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_gdb_index, &do_gdb_index, FALSE }, |
| { { ".trace_info", "", NULL, NULL, 0, 0, trace_abbrev, NULL, 0, NULL }, |
| display_trace_info, &do_trace_info, TRUE }, |
| { { ".trace_abbrev", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_abbrev, &do_trace_abbrevs, FALSE }, |
| { { ".trace_aranges", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_aranges, &do_trace_aranges, FALSE }, |
| { { ".debug_info.dwo", ".zdebug_info.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL, 0, NULL }, |
| display_debug_info, &do_debug_info, TRUE }, |
| { { ".debug_abbrev.dwo", ".zdebug_abbrev.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_abbrev, &do_debug_abbrevs, FALSE }, |
| { { ".debug_types.dwo", ".zdebug_types.dwo", NULL, NULL, 0, 0, abbrev_dwo, NULL, 0, NULL }, |
| display_debug_types, &do_debug_info, TRUE }, |
| { { ".debug_line.dwo", ".zdebug_line.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_lines, &do_debug_lines, TRUE }, |
| { { ".debug_loc.dwo", ".zdebug_loc.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_loc, &do_debug_loc, TRUE }, |
| { { ".debug_macro.dwo", ".zdebug_macro.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_macro, &do_debug_macinfo, TRUE }, |
| { { ".debug_macinfo.dwo", ".zdebug_macinfo.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_macinfo, &do_debug_macinfo, FALSE }, |
| { { ".debug_str.dwo", ".zdebug_str.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_str, &do_debug_str, TRUE }, |
| { { ".debug_str_offsets", ".zdebug_str_offsets", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_str_offsets, NULL, FALSE }, |
| { { ".debug_str_offsets.dwo", ".zdebug_str_offsets.dwo", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_str_offsets, NULL, FALSE }, |
| { { ".debug_addr", ".zdebug_addr", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_debug_addr, &do_debug_addr, TRUE }, |
| { { ".debug_cu_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_cu_index, &do_debug_cu_index, FALSE }, |
| { { ".debug_tu_index", "", NULL, NULL, 0, 0, 0, NULL, 0, NULL }, |
| display_cu_index, &do_debug_cu_index, FALSE }, |
| }; |