| /* objdump.c -- dump information about an object file. |
| Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 1999 |
| 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 2, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| #include "bfd.h" |
| #include "getopt.h" |
| #include "progress.h" |
| #include "bucomm.h" |
| #include <ctype.h> |
| #include "dis-asm.h" |
| #include "libiberty.h" |
| #include "demangle.h" |
| #include "debug.h" |
| #include "budbg.h" |
| |
| #ifdef ANSI_PROTOTYPES |
| #include <stdarg.h> |
| #else |
| #include <varargs.h> |
| #endif |
| |
| /* Internal headers for the ELF .stab-dump code - sorry. */ |
| #define BYTES_IN_WORD 32 |
| #include "aout/aout64.h" |
| |
| #ifdef NEED_DECLARATION_FPRINTF |
| /* This is needed by INIT_DISASSEMBLE_INFO. */ |
| extern int fprintf PARAMS ((FILE *, const char *, ...)); |
| #endif |
| |
| static char *default_target = NULL; /* default at runtime */ |
| |
| static int show_version = 0; /* show the version number */ |
| static int dump_section_contents; /* -s */ |
| static int dump_section_headers; /* -h */ |
| static boolean dump_file_header; /* -f */ |
| static int dump_symtab; /* -t */ |
| static int dump_dynamic_symtab; /* -T */ |
| static int dump_reloc_info; /* -r */ |
| static int dump_dynamic_reloc_info; /* -R */ |
| static int dump_ar_hdrs; /* -a */ |
| static int dump_private_headers; /* -p */ |
| static int prefix_addresses; /* --prefix-addresses */ |
| static int with_line_numbers; /* -l */ |
| static boolean with_source_code; /* -S */ |
| static int show_raw_insn; /* --show-raw-insn */ |
| static int dump_stab_section_info; /* --stabs */ |
| static int do_demangle; /* -C, --demangle */ |
| static boolean disassemble; /* -d */ |
| static boolean disassemble_all; /* -D */ |
| static int disassemble_zeroes; /* --disassemble-zeroes */ |
| static boolean formats_info; /* -i */ |
| static char *only; /* -j secname */ |
| static int wide_output; /* -w */ |
| static bfd_vma start_address = (bfd_vma) -1; /* --start-address */ |
| static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */ |
| static int dump_debugging; /* --debugging */ |
| static bfd_vma adjust_section_vma = 0; /* --adjust-vma */ |
| |
| /* Extra info to pass to the disassembler address printing function. */ |
| struct objdump_disasm_info { |
| bfd *abfd; |
| asection *sec; |
| boolean require_sec; |
| }; |
| |
| /* Architecture to disassemble for, or default if NULL. */ |
| static char *machine = (char *) NULL; |
| |
| /* Target specific options to the disassembler. */ |
| static char *disassembler_options = (char *) NULL; |
| |
| /* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */ |
| static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN; |
| |
| /* The symbol table. */ |
| static asymbol **syms; |
| |
| /* Number of symbols in `syms'. */ |
| static long symcount = 0; |
| |
| /* The sorted symbol table. */ |
| static asymbol **sorted_syms; |
| |
| /* Number of symbols in `sorted_syms'. */ |
| static long sorted_symcount = 0; |
| |
| /* The dynamic symbol table. */ |
| static asymbol **dynsyms; |
| |
| /* Number of symbols in `dynsyms'. */ |
| static long dynsymcount = 0; |
| |
| /* Static declarations. */ |
| |
| static void |
| usage PARAMS ((FILE *, int)); |
| |
| static void |
| display_file PARAMS ((char *filename, char *target)); |
| |
| static void |
| dump_section_header PARAMS ((bfd *, asection *, PTR)); |
| |
| static void |
| dump_headers PARAMS ((bfd *)); |
| |
| static void |
| dump_data PARAMS ((bfd *abfd)); |
| |
| static void |
| dump_relocs PARAMS ((bfd *abfd)); |
| |
| static void |
| dump_dynamic_relocs PARAMS ((bfd * abfd)); |
| |
| static void |
| dump_reloc_set PARAMS ((bfd *, asection *, arelent **, long)); |
| |
| static void |
| dump_symbols PARAMS ((bfd *abfd, boolean dynamic)); |
| |
| static void |
| dump_bfd_header PARAMS ((bfd *)); |
| |
| static void |
| dump_bfd_private_header PARAMS ((bfd *)); |
| |
| static void |
| display_bfd PARAMS ((bfd *abfd)); |
| |
| static void |
| display_target_list PARAMS ((void)); |
| |
| static void |
| display_info_table PARAMS ((int, int)); |
| |
| static void |
| display_target_tables PARAMS ((void)); |
| |
| static void |
| display_info PARAMS ((void)); |
| |
| static void |
| objdump_print_value PARAMS ((bfd_vma, struct disassemble_info *, boolean)); |
| |
| static void |
| objdump_print_symname PARAMS ((bfd *, struct disassemble_info *, asymbol *)); |
| |
| static asymbol * |
| find_symbol_for_address PARAMS ((bfd *, asection *, bfd_vma, boolean, long *)); |
| |
| static void |
| objdump_print_addr_with_sym PARAMS ((bfd *, asection *, asymbol *, bfd_vma, |
| struct disassemble_info *, boolean)); |
| |
| static void |
| objdump_print_addr PARAMS ((bfd_vma, struct disassemble_info *, boolean)); |
| |
| static void |
| objdump_print_address PARAMS ((bfd_vma, struct disassemble_info *)); |
| |
| static void |
| show_line PARAMS ((bfd *, asection *, bfd_vma)); |
| |
| static void |
| disassemble_bytes PARAMS ((struct disassemble_info *, disassembler_ftype, |
| boolean, bfd_byte *, bfd_vma, bfd_vma, |
| arelent ***, arelent **)); |
| |
| static void |
| disassemble_data PARAMS ((bfd *)); |
| |
| static const char * |
| endian_string PARAMS ((enum bfd_endian)); |
| |
| static asymbol ** |
| slurp_symtab PARAMS ((bfd *)); |
| |
| static asymbol ** |
| slurp_dynamic_symtab PARAMS ((bfd *)); |
| |
| static long |
| remove_useless_symbols PARAMS ((asymbol **, long)); |
| |
| static int |
| compare_symbols PARAMS ((const PTR, const PTR)); |
| |
| static int |
| compare_relocs PARAMS ((const PTR, const PTR)); |
| |
| static void |
| dump_stabs PARAMS ((bfd *)); |
| |
| static boolean |
| read_section_stabs PARAMS ((bfd *, const char *, const char *)); |
| |
| static void |
| print_section_stabs PARAMS ((bfd *, const char *, const char *)); |
| |
| static void |
| usage (stream, status) |
| FILE *stream; |
| int status; |
| { |
| fprintf (stream, _("\ |
| Usage: %s [-ahifCdDprRtTxsSlw] [-b bfdname] [-m machine] \n\ |
| [-j section-name] [-M disassembler-options]\n\ |
| [--archive-headers] [--target=bfdname] [--debugging] [--disassemble]\n\ |
| [--disassemble-all] [--disassemble-zeroes] [--file-headers]\n\ |
| [--section-headers] [--headers]\n\ |
| [--info] [--section=section-name] [--line-numbers] [--source]\n"), |
| program_name); |
| fprintf (stream, _("\ |
| [--architecture=machine] [--reloc] [--full-contents] [--stabs]\n\ |
| [--syms] [--all-headers] [--dynamic-syms] [--dynamic-reloc]\n\ |
| [--wide] [--version] [--help] [--private-headers]\n\ |
| [--start-address=addr] [--stop-address=addr]\n\ |
| [--prefix-addresses] [--[no-]show-raw-insn] [--demangle]\n\ |
| [--adjust-vma=offset] [-EB|-EL] [--endian={big|little}] objfile...\n\ |
| at least one option besides -l (--line-numbers) must be given\n")); |
| list_supported_targets (program_name, stream); |
| if (status == 0) |
| fprintf (stream, _("Report bugs to bug-gnu-utils@gnu.org\n")); |
| exit (status); |
| } |
| |
| /* 150 isn't special; it's just an arbitrary non-ASCII char value. */ |
| |
| #define OPTION_ENDIAN (150) |
| #define OPTION_START_ADDRESS (OPTION_ENDIAN + 1) |
| #define OPTION_STOP_ADDRESS (OPTION_START_ADDRESS + 1) |
| #define OPTION_ADJUST_VMA (OPTION_STOP_ADDRESS + 1) |
| |
| static struct option long_options[]= |
| { |
| {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA}, |
| {"all-headers", no_argument, NULL, 'x'}, |
| {"private-headers", no_argument, NULL, 'p'}, |
| {"architecture", required_argument, NULL, 'm'}, |
| {"archive-headers", no_argument, NULL, 'a'}, |
| {"debugging", no_argument, &dump_debugging, 1}, |
| {"demangle", no_argument, &do_demangle, 1}, |
| {"disassemble", no_argument, NULL, 'd'}, |
| {"disassemble-all", no_argument, NULL, 'D'}, |
| {"disassembler-options", required_argument, NULL, 'M'}, |
| {"disassemble-zeroes", no_argument, &disassemble_zeroes, 1}, |
| {"dynamic-reloc", no_argument, NULL, 'R'}, |
| {"dynamic-syms", no_argument, NULL, 'T'}, |
| {"endian", required_argument, NULL, OPTION_ENDIAN}, |
| {"file-headers", no_argument, NULL, 'f'}, |
| {"full-contents", no_argument, NULL, 's'}, |
| {"headers", no_argument, NULL, 'h'}, |
| {"help", no_argument, NULL, 'H'}, |
| {"info", no_argument, NULL, 'i'}, |
| {"line-numbers", no_argument, NULL, 'l'}, |
| {"no-show-raw-insn", no_argument, &show_raw_insn, -1}, |
| {"prefix-addresses", no_argument, &prefix_addresses, 1}, |
| {"reloc", no_argument, NULL, 'r'}, |
| {"section", required_argument, NULL, 'j'}, |
| {"section-headers", no_argument, NULL, 'h'}, |
| {"show-raw-insn", no_argument, &show_raw_insn, 1}, |
| {"source", no_argument, NULL, 'S'}, |
| {"stabs", no_argument, &dump_stab_section_info, 1}, |
| {"start-address", required_argument, NULL, OPTION_START_ADDRESS}, |
| {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS}, |
| {"syms", no_argument, NULL, 't'}, |
| {"target", required_argument, NULL, 'b'}, |
| {"version", no_argument, &show_version, 1}, |
| {"wide", no_argument, &wide_output, 'w'}, |
| {0, no_argument, 0, 0} |
| }; |
| |
| static void |
| dump_section_header (abfd, section, ignored) |
| bfd *abfd; |
| asection *section; |
| PTR ignored; |
| { |
| char *comma = ""; |
| |
| printf ("%3d %-13s %08lx ", section->index, |
| bfd_get_section_name (abfd, section), |
| (unsigned long) bfd_section_size (abfd, section)); |
| printf_vma (bfd_get_section_vma (abfd, section)); |
| printf (" "); |
| printf_vma (section->lma); |
| printf (" %08lx 2**%u", section->filepos, |
| bfd_get_section_alignment (abfd, section)); |
| if (! wide_output) |
| printf ("\n "); |
| printf (" "); |
| |
| #define PF(x, y) \ |
| if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; } |
| |
| PF (SEC_HAS_CONTENTS, "CONTENTS"); |
| PF (SEC_ALLOC, "ALLOC"); |
| PF (SEC_CONSTRUCTOR, "CONSTRUCTOR"); |
| PF (SEC_CONSTRUCTOR_TEXT, "CONSTRUCTOR TEXT"); |
| PF (SEC_CONSTRUCTOR_DATA, "CONSTRUCTOR DATA"); |
| PF (SEC_CONSTRUCTOR_BSS, "CONSTRUCTOR BSS"); |
| PF (SEC_LOAD, "LOAD"); |
| PF (SEC_RELOC, "RELOC"); |
| #ifdef SEC_BALIGN |
| PF (SEC_BALIGN, "BALIGN"); |
| #endif |
| PF (SEC_READONLY, "READONLY"); |
| PF (SEC_CODE, "CODE"); |
| PF (SEC_DATA, "DATA"); |
| PF (SEC_ROM, "ROM"); |
| PF (SEC_DEBUGGING, "DEBUGGING"); |
| PF (SEC_NEVER_LOAD, "NEVER_LOAD"); |
| PF (SEC_EXCLUDE, "EXCLUDE"); |
| PF (SEC_SORT_ENTRIES, "SORT_ENTRIES"); |
| |
| if ((section->flags & SEC_LINK_ONCE) != 0) |
| { |
| const char *ls; |
| |
| switch (section->flags & SEC_LINK_DUPLICATES) |
| { |
| default: |
| abort (); |
| case SEC_LINK_DUPLICATES_DISCARD: |
| ls = "LINK_ONCE_DISCARD"; |
| break; |
| case SEC_LINK_DUPLICATES_ONE_ONLY: |
| ls = "LINK_ONCE_ONE_ONLY"; |
| break; |
| case SEC_LINK_DUPLICATES_SAME_SIZE: |
| ls = "LINK_ONCE_SAME_SIZE"; |
| break; |
| case SEC_LINK_DUPLICATES_SAME_CONTENTS: |
| ls = "LINK_ONCE_SAME_CONTENTS"; |
| break; |
| } |
| printf ("%s%s", comma, ls); |
| comma = ", "; |
| } |
| |
| printf ("\n"); |
| #undef PF |
| } |
| |
| static void |
| dump_headers (abfd) |
| bfd *abfd; |
| { |
| printf (_("Sections:\n")); |
| #ifndef BFD64 |
| printf (_("Idx Name Size VMA LMA File off Algn\n")); |
| #else |
| printf (_("Idx Name Size VMA LMA File off Algn\n")); |
| #endif |
| bfd_map_over_sections (abfd, dump_section_header, (PTR) NULL); |
| } |
| |
| static asymbol ** |
| slurp_symtab (abfd) |
| bfd *abfd; |
| { |
| asymbol **sy = (asymbol **) NULL; |
| long storage; |
| |
| if (!(bfd_get_file_flags (abfd) & HAS_SYMS)) |
| { |
| fprintf (stderr, _("%s: no symbols\n"), bfd_get_filename (abfd)); |
| symcount = 0; |
| return NULL; |
| } |
| |
| storage = bfd_get_symtab_upper_bound (abfd); |
| if (storage < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| |
| if (storage) |
| { |
| sy = (asymbol **) xmalloc (storage); |
| } |
| symcount = bfd_canonicalize_symtab (abfd, sy); |
| if (symcount < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| if (symcount == 0) |
| fprintf (stderr, _("%s: no symbols\n"), bfd_get_filename (abfd)); |
| return sy; |
| } |
| |
| /* Read in the dynamic symbols. */ |
| |
| static asymbol ** |
| slurp_dynamic_symtab (abfd) |
| bfd *abfd; |
| { |
| asymbol **sy = (asymbol **) NULL; |
| long storage; |
| |
| storage = bfd_get_dynamic_symtab_upper_bound (abfd); |
| if (storage < 0) |
| { |
| if (!(bfd_get_file_flags (abfd) & DYNAMIC)) |
| { |
| fprintf (stderr, _("%s: %s: not a dynamic object\n"), |
| program_name, bfd_get_filename (abfd)); |
| dynsymcount = 0; |
| return NULL; |
| } |
| |
| bfd_fatal (bfd_get_filename (abfd)); |
| } |
| |
| if (storage) |
| { |
| sy = (asymbol **) xmalloc (storage); |
| } |
| dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy); |
| if (dynsymcount < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| if (dynsymcount == 0) |
| fprintf (stderr, _("%s: %s: No dynamic symbols\n"), |
| program_name, bfd_get_filename (abfd)); |
| return sy; |
| } |
| |
| /* Filter out (in place) symbols that are useless for disassembly. |
| COUNT is the number of elements in SYMBOLS. |
| Return the number of useful symbols. */ |
| |
| static long |
| remove_useless_symbols (symbols, count) |
| asymbol **symbols; |
| long count; |
| { |
| register asymbol **in_ptr = symbols, **out_ptr = symbols; |
| |
| while (--count >= 0) |
| { |
| asymbol *sym = *in_ptr++; |
| |
| if (sym->name == NULL || sym->name[0] == '\0') |
| continue; |
| if (sym->flags & (BSF_DEBUGGING)) |
| continue; |
| if (bfd_is_und_section (sym->section) |
| || bfd_is_com_section (sym->section)) |
| continue; |
| |
| *out_ptr++ = sym; |
| } |
| return out_ptr - symbols; |
| } |
| |
| /* Sort symbols into value order. */ |
| |
| static int |
| compare_symbols (ap, bp) |
| const PTR ap; |
| const PTR bp; |
| { |
| const asymbol *a = *(const asymbol **)ap; |
| const asymbol *b = *(const asymbol **)bp; |
| const char *an, *bn; |
| size_t anl, bnl; |
| boolean af, bf; |
| flagword aflags, bflags; |
| |
| if (bfd_asymbol_value (a) > bfd_asymbol_value (b)) |
| return 1; |
| else if (bfd_asymbol_value (a) < bfd_asymbol_value (b)) |
| return -1; |
| |
| if (a->section > b->section) |
| return 1; |
| else if (a->section < b->section) |
| return -1; |
| |
| an = bfd_asymbol_name (a); |
| bn = bfd_asymbol_name (b); |
| anl = strlen (an); |
| bnl = strlen (bn); |
| |
| /* The symbols gnu_compiled and gcc2_compiled convey no real |
| information, so put them after other symbols with the same value. */ |
| |
| af = (strstr (an, "gnu_compiled") != NULL |
| || strstr (an, "gcc2_compiled") != NULL); |
| bf = (strstr (bn, "gnu_compiled") != NULL |
| || strstr (bn, "gcc2_compiled") != NULL); |
| |
| if (af && ! bf) |
| return 1; |
| if (! af && bf) |
| return -1; |
| |
| /* We use a heuristic for the file name, to try to sort it after |
| more useful symbols. It may not work on non Unix systems, but it |
| doesn't really matter; the only difference is precisely which |
| symbol names get printed. */ |
| |
| #define file_symbol(s, sn, snl) \ |
| (((s)->flags & BSF_FILE) != 0 \ |
| || ((sn)[(snl) - 2] == '.' \ |
| && ((sn)[(snl) - 1] == 'o' \ |
| || (sn)[(snl) - 1] == 'a'))) |
| |
| af = file_symbol (a, an, anl); |
| bf = file_symbol (b, bn, bnl); |
| |
| if (af && ! bf) |
| return 1; |
| if (! af && bf) |
| return -1; |
| |
| /* Try to sort global symbols before local symbols before function |
| symbols before debugging symbols. */ |
| |
| aflags = a->flags; |
| bflags = b->flags; |
| |
| if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING)) |
| { |
| if ((aflags & BSF_DEBUGGING) != 0) |
| return 1; |
| else |
| return -1; |
| } |
| if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION)) |
| { |
| if ((aflags & BSF_FUNCTION) != 0) |
| return -1; |
| else |
| return 1; |
| } |
| if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL)) |
| { |
| if ((aflags & BSF_LOCAL) != 0) |
| return 1; |
| else |
| return -1; |
| } |
| if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL)) |
| { |
| if ((aflags & BSF_GLOBAL) != 0) |
| return -1; |
| else |
| return 1; |
| } |
| |
| /* Symbols that start with '.' might be section names, so sort them |
| after symbols that don't start with '.'. */ |
| if (an[0] == '.' && bn[0] != '.') |
| return 1; |
| if (an[0] != '.' && bn[0] == '.') |
| return -1; |
| |
| /* Finally, if we can't distinguish them in any other way, try to |
| get consistent results by sorting the symbols by name. */ |
| return strcmp (an, bn); |
| } |
| |
| /* Sort relocs into address order. */ |
| |
| static int |
| compare_relocs (ap, bp) |
| const PTR ap; |
| const PTR bp; |
| { |
| const arelent *a = *(const arelent **)ap; |
| const arelent *b = *(const arelent **)bp; |
| |
| if (a->address > b->address) |
| return 1; |
| else if (a->address < b->address) |
| return -1; |
| |
| /* So that associated relocations tied to the same address show up |
| in the correct order, we don't do any further sorting. */ |
| if (a > b) |
| return 1; |
| else if (a < b) |
| return -1; |
| else |
| return 0; |
| } |
| |
| /* Print VMA to STREAM. If SKIP_ZEROES is true, omit leading zeroes. */ |
| |
| static void |
| objdump_print_value (vma, info, skip_zeroes) |
| bfd_vma vma; |
| struct disassemble_info *info; |
| boolean skip_zeroes; |
| { |
| char buf[30]; |
| char *p; |
| |
| sprintf_vma (buf, vma); |
| if (! skip_zeroes) |
| p = buf; |
| else |
| { |
| for (p = buf; *p == '0'; ++p) |
| ; |
| if (*p == '\0') |
| --p; |
| } |
| (*info->fprintf_func) (info->stream, "%s", p); |
| } |
| |
| /* Print the name of a symbol. */ |
| |
| static void |
| objdump_print_symname (abfd, info, sym) |
| bfd *abfd; |
| struct disassemble_info *info; |
| asymbol *sym; |
| { |
| char *alloc; |
| const char *name; |
| const char *print; |
| |
| alloc = NULL; |
| name = bfd_asymbol_name (sym); |
| if (! do_demangle || name[0] == '\0') |
| print = name; |
| else |
| { |
| /* Demangle the name. */ |
| if (bfd_get_symbol_leading_char (abfd) == name[0]) |
| ++name; |
| |
| alloc = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); |
| if (alloc == NULL) |
| print = name; |
| else |
| print = alloc; |
| } |
| |
| if (info != NULL) |
| (*info->fprintf_func) (info->stream, "%s", print); |
| else |
| printf ("%s", print); |
| |
| if (alloc != NULL) |
| free (alloc); |
| } |
| |
| /* Locate a symbol given a bfd, a section, and a VMA. If REQUIRE_SEC |
| is true, then always require the symbol to be in the section. This |
| returns NULL if there is no suitable symbol. If PLACE is not NULL, |
| then *PLACE is set to the index of the symbol in sorted_syms. */ |
| |
| static asymbol * |
| find_symbol_for_address (abfd, sec, vma, require_sec, place) |
| bfd *abfd; |
| asection *sec; |
| bfd_vma vma; |
| boolean require_sec; |
| long *place; |
| { |
| /* @@ Would it speed things up to cache the last two symbols returned, |
| and maybe their address ranges? For many processors, only one memory |
| operand can be present at a time, so the 2-entry cache wouldn't be |
| constantly churned by code doing heavy memory accesses. */ |
| |
| /* Indices in `sorted_syms'. */ |
| long min = 0; |
| long max = sorted_symcount; |
| long thisplace; |
| |
| if (sorted_symcount < 1) |
| return NULL; |
| |
| /* Perform a binary search looking for the closest symbol to the |
| required value. We are searching the range (min, max]. */ |
| while (min + 1 < max) |
| { |
| asymbol *sym; |
| |
| thisplace = (max + min) / 2; |
| sym = sorted_syms[thisplace]; |
| |
| if (bfd_asymbol_value (sym) > vma) |
| max = thisplace; |
| else if (bfd_asymbol_value (sym) < vma) |
| min = thisplace; |
| else |
| { |
| min = thisplace; |
| break; |
| } |
| } |
| |
| /* The symbol we want is now in min, the low end of the range we |
| were searching. If there are several symbols with the same |
| value, we want the first one. */ |
| thisplace = min; |
| while (thisplace > 0 |
| && (bfd_asymbol_value (sorted_syms[thisplace]) |
| == bfd_asymbol_value (sorted_syms[thisplace - 1]))) |
| --thisplace; |
| |
| /* If the file is relocateable, and the symbol could be from this |
| section, prefer a symbol from this section over symbols from |
| others, even if the other symbol's value might be closer. |
| |
| Note that this may be wrong for some symbol references if the |
| sections have overlapping memory ranges, but in that case there's |
| no way to tell what's desired without looking at the relocation |
| table. */ |
| |
| if (sorted_syms[thisplace]->section != sec |
| && (require_sec |
| || ((abfd->flags & HAS_RELOC) != 0 |
| && vma >= bfd_get_section_vma (abfd, sec) |
| && vma < (bfd_get_section_vma (abfd, sec) |
| + bfd_section_size (abfd, sec))))) |
| { |
| long i; |
| |
| for (i = thisplace + 1; i < sorted_symcount; i++) |
| { |
| if (bfd_asymbol_value (sorted_syms[i]) |
| != bfd_asymbol_value (sorted_syms[thisplace])) |
| break; |
| } |
| --i; |
| for (; i >= 0; i--) |
| { |
| if (sorted_syms[i]->section == sec |
| && (i == 0 |
| || sorted_syms[i - 1]->section != sec |
| || (bfd_asymbol_value (sorted_syms[i]) |
| != bfd_asymbol_value (sorted_syms[i - 1])))) |
| { |
| thisplace = i; |
| break; |
| } |
| } |
| |
| if (sorted_syms[thisplace]->section != sec) |
| { |
| /* We didn't find a good symbol with a smaller value. |
| Look for one with a larger value. */ |
| for (i = thisplace + 1; i < sorted_symcount; i++) |
| { |
| if (sorted_syms[i]->section == sec) |
| { |
| thisplace = i; |
| break; |
| } |
| } |
| } |
| |
| if (sorted_syms[thisplace]->section != sec |
| && (require_sec |
| || ((abfd->flags & HAS_RELOC) != 0 |
| && vma >= bfd_get_section_vma (abfd, sec) |
| && vma < (bfd_get_section_vma (abfd, sec) |
| + bfd_section_size (abfd, sec))))) |
| { |
| /* There is no suitable symbol. */ |
| return NULL; |
| } |
| } |
| |
| if (place != NULL) |
| *place = thisplace; |
| |
| return sorted_syms[thisplace]; |
| } |
| |
| /* Print an address to INFO symbolically. */ |
| |
| static void |
| objdump_print_addr_with_sym (abfd, sec, sym, vma, info, skip_zeroes) |
| bfd *abfd; |
| asection *sec; |
| asymbol *sym; |
| bfd_vma vma; |
| struct disassemble_info *info; |
| boolean skip_zeroes; |
| { |
| objdump_print_value (vma, info, skip_zeroes); |
| |
| if (sym == NULL) |
| { |
| bfd_vma secaddr; |
| |
| (*info->fprintf_func) (info->stream, " <%s", |
| bfd_get_section_name (abfd, sec)); |
| secaddr = bfd_get_section_vma (abfd, sec); |
| if (vma < secaddr) |
| { |
| (*info->fprintf_func) (info->stream, "-0x"); |
| objdump_print_value (secaddr - vma, info, true); |
| } |
| else if (vma > secaddr) |
| { |
| (*info->fprintf_func) (info->stream, "+0x"); |
| objdump_print_value (vma - secaddr, info, true); |
| } |
| (*info->fprintf_func) (info->stream, ">"); |
| } |
| else |
| { |
| (*info->fprintf_func) (info->stream, " <"); |
| objdump_print_symname (abfd, info, sym); |
| if (bfd_asymbol_value (sym) > vma) |
| { |
| (*info->fprintf_func) (info->stream, "-0x"); |
| objdump_print_value (bfd_asymbol_value (sym) - vma, info, true); |
| } |
| else if (vma > bfd_asymbol_value (sym)) |
| { |
| (*info->fprintf_func) (info->stream, "+0x"); |
| objdump_print_value (vma - bfd_asymbol_value (sym), info, true); |
| } |
| (*info->fprintf_func) (info->stream, ">"); |
| } |
| } |
| |
| /* Print VMA to INFO, symbolically if possible. If SKIP_ZEROES is |
| true, don't output leading zeroes. */ |
| |
| static void |
| objdump_print_addr (vma, info, skip_zeroes) |
| bfd_vma vma; |
| struct disassemble_info *info; |
| boolean skip_zeroes; |
| { |
| struct objdump_disasm_info *aux; |
| asymbol *sym; |
| |
| if (sorted_symcount < 1) |
| { |
| (*info->fprintf_func) (info->stream, "0x"); |
| objdump_print_value (vma, info, skip_zeroes); |
| return; |
| } |
| |
| aux = (struct objdump_disasm_info *) info->application_data; |
| sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec, |
| (long *) NULL); |
| objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info, |
| skip_zeroes); |
| } |
| |
| /* Print VMA to INFO. This function is passed to the disassembler |
| routine. */ |
| |
| static void |
| objdump_print_address (vma, info) |
| bfd_vma vma; |
| struct disassemble_info *info; |
| { |
| objdump_print_addr (vma, info, ! prefix_addresses); |
| } |
| |
| /* Determine of the given address has a symbol associated with it. */ |
| |
| static int |
| objdump_symbol_at_address (vma, info) |
| bfd_vma vma; |
| struct disassemble_info * info; |
| { |
| struct objdump_disasm_info * aux; |
| asymbol * sym; |
| |
| /* No symbols - do not bother checking. */ |
| if (sorted_symcount < 1) |
| return 0; |
| |
| aux = (struct objdump_disasm_info *) info->application_data; |
| sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec, |
| (long *) NULL); |
| |
| return (sym != NULL && (bfd_asymbol_value (sym) == vma)); |
| } |
| |
| /* Hold the last function name and the last line number we displayed |
| in a disassembly. */ |
| |
| static char *prev_functionname; |
| static unsigned int prev_line; |
| |
| /* We keep a list of all files that we have seen when doing a |
| dissassembly with source, so that we know how much of the file to |
| display. This can be important for inlined functions. */ |
| |
| struct print_file_list |
| { |
| struct print_file_list *next; |
| char *filename; |
| unsigned int line; |
| FILE *f; |
| }; |
| |
| static struct print_file_list *print_files; |
| |
| /* The number of preceding context lines to show when we start |
| displaying a file for the first time. */ |
| |
| #define SHOW_PRECEDING_CONTEXT_LINES (5) |
| |
| /* Skip ahead to a given line in a file, optionally printing each |
| line. */ |
| |
| static void |
| skip_to_line PARAMS ((struct print_file_list *, unsigned int, boolean)); |
| |
| static void |
| skip_to_line (p, line, show) |
| struct print_file_list *p; |
| unsigned int line; |
| boolean show; |
| { |
| while (p->line < line) |
| { |
| char buf[100]; |
| |
| if (fgets (buf, sizeof buf, p->f) == NULL) |
| { |
| fclose (p->f); |
| p->f = NULL; |
| break; |
| } |
| |
| if (show) |
| printf ("%s", buf); |
| |
| if (strchr (buf, '\n') != NULL) |
| ++p->line; |
| } |
| } |
| |
| /* Show the line number, or the source line, in a dissassembly |
| listing. */ |
| |
| static void |
| show_line (abfd, section, off) |
| bfd *abfd; |
| asection *section; |
| bfd_vma off; |
| { |
| CONST char *filename; |
| CONST char *functionname; |
| unsigned int line; |
| |
| if (! with_line_numbers && ! with_source_code) |
| return; |
| |
| if (! bfd_find_nearest_line (abfd, section, syms, off, &filename, |
| &functionname, &line)) |
| return; |
| |
| if (filename != NULL && *filename == '\0') |
| filename = NULL; |
| if (functionname != NULL && *functionname == '\0') |
| functionname = NULL; |
| |
| if (with_line_numbers) |
| { |
| if (functionname != NULL |
| && (prev_functionname == NULL |
| || strcmp (functionname, prev_functionname) != 0)) |
| printf ("%s():\n", functionname); |
| if (line > 0 && line != prev_line) |
| printf ("%s:%u\n", filename == NULL ? "???" : filename, line); |
| } |
| |
| if (with_source_code |
| && filename != NULL |
| && line > 0) |
| { |
| struct print_file_list **pp, *p; |
| |
| for (pp = &print_files; *pp != NULL; pp = &(*pp)->next) |
| if (strcmp ((*pp)->filename, filename) == 0) |
| break; |
| p = *pp; |
| |
| if (p != NULL) |
| { |
| if (p != print_files) |
| { |
| int l; |
| |
| /* We have reencountered a file name which we saw |
| earlier. This implies that either we are dumping out |
| code from an included file, or the same file was |
| linked in more than once. There are two common cases |
| of an included file: inline functions in a header |
| file, and a bison or flex skeleton file. In the |
| former case we want to just start printing (but we |
| back up a few lines to give context); in the latter |
| case we want to continue from where we left off. I |
| can't think of a good way to distinguish the cases, |
| so I used a heuristic based on the file name. */ |
| if (strcmp (p->filename + strlen (p->filename) - 2, ".h") != 0) |
| l = p->line; |
| else |
| { |
| l = line - SHOW_PRECEDING_CONTEXT_LINES; |
| if (l <= 0) |
| l = 1; |
| } |
| |
| if (p->f == NULL) |
| { |
| p->f = fopen (p->filename, "r"); |
| p->line = 0; |
| } |
| if (p->f != NULL) |
| skip_to_line (p, l, false); |
| |
| if (print_files->f != NULL) |
| { |
| fclose (print_files->f); |
| print_files->f = NULL; |
| } |
| } |
| |
| if (p->f != NULL) |
| { |
| skip_to_line (p, line, true); |
| *pp = p->next; |
| p->next = print_files; |
| print_files = p; |
| } |
| } |
| else |
| { |
| FILE *f; |
| |
| f = fopen (filename, "r"); |
| if (f != NULL) |
| { |
| int l; |
| |
| p = ((struct print_file_list *) |
| xmalloc (sizeof (struct print_file_list))); |
| p->filename = xmalloc (strlen (filename) + 1); |
| strcpy (p->filename, filename); |
| p->line = 0; |
| p->f = f; |
| |
| if (print_files != NULL && print_files->f != NULL) |
| { |
| fclose (print_files->f); |
| print_files->f = NULL; |
| } |
| p->next = print_files; |
| print_files = p; |
| |
| l = line - SHOW_PRECEDING_CONTEXT_LINES; |
| if (l <= 0) |
| l = 1; |
| skip_to_line (p, l, false); |
| if (p->f != NULL) |
| skip_to_line (p, line, true); |
| } |
| } |
| } |
| |
| if (functionname != NULL |
| && (prev_functionname == NULL |
| || strcmp (functionname, prev_functionname) != 0)) |
| { |
| if (prev_functionname != NULL) |
| free (prev_functionname); |
| prev_functionname = xmalloc (strlen (functionname) + 1); |
| strcpy (prev_functionname, functionname); |
| } |
| |
| if (line > 0 && line != prev_line) |
| prev_line = line; |
| } |
| |
| /* Pseudo FILE object for strings. */ |
| typedef struct |
| { |
| char *buffer; |
| size_t size; |
| char *current; |
| } SFILE; |
| |
| /* sprintf to a "stream" */ |
| |
| static int |
| #ifdef ANSI_PROTOTYPES |
| objdump_sprintf (SFILE *f, const char *format, ...) |
| #else |
| objdump_sprintf (va_alist) |
| va_dcl |
| #endif |
| { |
| #ifndef ANSI_PROTOTYPES |
| SFILE *f; |
| const char *format; |
| #endif |
| char *buf; |
| va_list args; |
| size_t n; |
| |
| #ifdef ANSI_PROTOTYPES |
| va_start (args, format); |
| #else |
| va_start (args); |
| f = va_arg (args, SFILE *); |
| format = va_arg (args, const char *); |
| #endif |
| |
| vasprintf (&buf, format, args); |
| |
| va_end (args); |
| |
| if (buf == NULL) |
| { |
| fprintf (stderr, _("Out of virtual memory\n")); |
| exit (1); |
| } |
| |
| n = strlen (buf); |
| |
| while ((f->buffer + f->size) - f->current < n + 1) |
| { |
| size_t curroff; |
| |
| curroff = f->current - f->buffer; |
| f->size *= 2; |
| f->buffer = xrealloc (f->buffer, f->size); |
| f->current = f->buffer + curroff; |
| } |
| |
| memcpy (f->current, buf, n); |
| f->current += n; |
| f->current[0] = '\0'; |
| |
| free (buf); |
| |
| return n; |
| } |
| |
| /* The number of zeroes we want to see before we start skipping them. |
| The number is arbitrarily chosen. */ |
| |
| #define SKIP_ZEROES (8) |
| |
| /* The number of zeroes to skip at the end of a section. If the |
| number of zeroes at the end is between SKIP_ZEROES_AT_END and |
| SKIP_ZEROES, they will be disassembled. If there are fewer than |
| SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic |
| attempt to avoid disassembling zeroes inserted by section |
| alignment. */ |
| |
| #define SKIP_ZEROES_AT_END (3) |
| |
| /* Disassemble some data in memory between given values. */ |
| |
| static void |
| disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp, |
| relppend) |
| struct disassemble_info *info; |
| disassembler_ftype disassemble_fn; |
| boolean insns; |
| bfd_byte *data; |
| bfd_vma start; |
| bfd_vma stop; |
| arelent ***relppp; |
| arelent **relppend; |
| { |
| struct objdump_disasm_info *aux; |
| asection *section; |
| int bytes_per_line; |
| boolean done_dot; |
| int skip_addr_chars; |
| bfd_vma i; |
| |
| aux = (struct objdump_disasm_info *) info->application_data; |
| section = aux->sec; |
| |
| if (insns) |
| bytes_per_line = 4; |
| else |
| bytes_per_line = 16; |
| |
| /* Figure out how many characters to skip at the start of an |
| address, to make the disassembly look nicer. We discard leading |
| zeroes in chunks of 4, ensuring that there is always a leading |
| zero remaining. */ |
| skip_addr_chars = 0; |
| if (! prefix_addresses) |
| { |
| char buf[30]; |
| char *s; |
| |
| sprintf_vma (buf, |
| section->vma + bfd_section_size (section->owner, section)); |
| s = buf; |
| while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0' |
| && s[4] == '0') |
| { |
| skip_addr_chars += 4; |
| s += 4; |
| } |
| } |
| |
| info->insn_info_valid = 0; |
| |
| done_dot = false; |
| i = start; |
| while (i < stop) |
| { |
| bfd_vma z; |
| int bytes = 0; |
| boolean need_nl = false; |
| |
| /* If we see more than SKIP_ZEROES bytes of zeroes, we just |
| print `...'. */ |
| for (z = i; z < stop; z++) |
| if (data[z] != 0) |
| break; |
| if (! disassemble_zeroes |
| && (info->insn_info_valid == 0 |
| || info->branch_delay_insns == 0) |
| && (z - i >= SKIP_ZEROES |
| || (z == stop && z - i < SKIP_ZEROES_AT_END))) |
| { |
| printf ("\t...\n"); |
| |
| /* If there are more nonzero bytes to follow, we only skip |
| zeroes in multiples of 4, to try to avoid running over |
| the start of an instruction which happens to start with |
| zero. */ |
| if (z != stop) |
| z = i + ((z - i) &~ 3); |
| |
| bytes = z - i; |
| } |
| else |
| { |
| char buf[50]; |
| SFILE sfile; |
| int bpc = 0; |
| int pb = 0; |
| |
| done_dot = false; |
| |
| if (with_line_numbers || with_source_code) |
| show_line (aux->abfd, section, i); |
| |
| if (! prefix_addresses) |
| { |
| char *s; |
| |
| sprintf_vma (buf, section->vma + i); |
| for (s = buf + skip_addr_chars; *s == '0'; s++) |
| *s = ' '; |
| if (*s == '\0') |
| *--s = '0'; |
| printf ("%s:\t", buf + skip_addr_chars); |
| } |
| else |
| { |
| aux->require_sec = true; |
| objdump_print_address (section->vma + i, info); |
| aux->require_sec = false; |
| putchar (' '); |
| } |
| |
| if (insns) |
| { |
| sfile.size = 120; |
| sfile.buffer = xmalloc (sfile.size); |
| sfile.current = sfile.buffer; |
| info->fprintf_func = (fprintf_ftype) objdump_sprintf; |
| info->stream = (FILE *) &sfile; |
| info->bytes_per_line = 0; |
| info->bytes_per_chunk = 0; |
| |
| /* FIXME: This is wrong. It tests the number of bytes |
| in the last instruction, not the current one. */ |
| if (*relppp < relppend |
| && (**relppp)->address >= i |
| && (**relppp)->address < i + bytes) |
| info->flags = INSN_HAS_RELOC; |
| else |
| info->flags = 0; |
| |
| bytes = (*disassemble_fn) (section->vma + i, info); |
| info->fprintf_func = (fprintf_ftype) fprintf; |
| info->stream = stdout; |
| if (info->bytes_per_line != 0) |
| bytes_per_line = info->bytes_per_line; |
| if (bytes < 0) |
| { |
| if (sfile.current != sfile.buffer) |
| printf ("%s\n", sfile.buffer); |
| free (sfile.buffer); |
| break; |
| } |
| } |
| else |
| { |
| long j; |
| |
| bytes = bytes_per_line; |
| if (i + bytes > stop) |
| bytes = stop - i; |
| |
| for (j = i; j < i + bytes; ++j) |
| { |
| if (isprint (data[j])) |
| buf[j - i] = data[j]; |
| else |
| buf[j - i] = '.'; |
| } |
| buf[j - i] = '\0'; |
| } |
| |
| if (prefix_addresses |
| ? show_raw_insn > 0 |
| : show_raw_insn >= 0) |
| { |
| long j; |
| |
| /* If ! prefix_addresses and ! wide_output, we print |
| bytes_per_line bytes per line. */ |
| pb = bytes; |
| if (pb > bytes_per_line && ! prefix_addresses && ! wide_output) |
| pb = bytes_per_line; |
| |
| if (info->bytes_per_chunk) |
| bpc = info->bytes_per_chunk; |
| else |
| bpc = 1; |
| |
| for (j = i; j < i + pb; j += bpc) |
| { |
| int k; |
| if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE) |
| { |
| for (k = bpc - 1; k >= 0; k--) |
| printf ("%02x", (unsigned) data[j + k]); |
| putchar (' '); |
| } |
| else |
| { |
| for (k = 0; k < bpc; k++) |
| printf ("%02x", (unsigned) data[j + k]); |
| putchar (' '); |
| } |
| } |
| |
| for (; pb < bytes_per_line; pb += bpc) |
| { |
| int k; |
| |
| for (k = 0; k < bpc; k++) |
| printf (" "); |
| putchar (' '); |
| } |
| |
| /* Separate raw data from instruction by extra space. */ |
| if (insns) |
| putchar ('\t'); |
| else |
| printf (" "); |
| } |
| |
| if (! insns) |
| printf ("%s", buf); |
| else |
| { |
| printf ("%s", sfile.buffer); |
| free (sfile.buffer); |
| } |
| |
| if (prefix_addresses |
| ? show_raw_insn > 0 |
| : show_raw_insn >= 0) |
| { |
| while (pb < bytes) |
| { |
| long j; |
| char *s; |
| |
| putchar ('\n'); |
| j = i + pb; |
| |
| sprintf_vma (buf, section->vma + j); |
| for (s = buf + skip_addr_chars; *s == '0'; s++) |
| *s = ' '; |
| if (*s == '\0') |
| *--s = '0'; |
| printf ("%s:\t", buf + skip_addr_chars); |
| |
| pb += bytes_per_line; |
| if (pb > bytes) |
| pb = bytes; |
| for (; j < i + pb; j += bpc) |
| { |
| int k; |
| |
| if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE) |
| { |
| for (k = bpc - 1; k >= 0; k--) |
| printf ("%02x", (unsigned) data[j + k]); |
| putchar (' '); |
| } |
| else |
| { |
| for (k = 0; k < bpc; k++) |
| printf ("%02x", (unsigned) data[j + k]); |
| putchar (' '); |
| } |
| } |
| } |
| } |
| |
| if (!wide_output) |
| putchar ('\n'); |
| else |
| need_nl = true; |
| } |
| |
| if (dump_reloc_info |
| && (section->flags & SEC_RELOC) != 0) |
| { |
| while ((*relppp) < relppend |
| && ((**relppp)->address >= (bfd_vma) i |
| && (**relppp)->address < (bfd_vma) i + bytes)) |
| { |
| arelent *q; |
| |
| q = **relppp; |
| |
| if (wide_output) |
| putchar ('\t'); |
| else |
| printf ("\t\t\t"); |
| |
| objdump_print_value (section->vma + q->address, info, true); |
| |
| printf (": %s\t", q->howto->name); |
| |
| if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL) |
| printf ("*unknown*"); |
| else |
| { |
| const char *sym_name; |
| |
| sym_name = bfd_asymbol_name (*q->sym_ptr_ptr); |
| if (sym_name != NULL && *sym_name != '\0') |
| objdump_print_symname (aux->abfd, info, *q->sym_ptr_ptr); |
| else |
| { |
| asection *sym_sec; |
| |
| sym_sec = bfd_get_section (*q->sym_ptr_ptr); |
| sym_name = bfd_get_section_name (aux->abfd, sym_sec); |
| if (sym_name == NULL || *sym_name == '\0') |
| sym_name = "*unknown*"; |
| printf ("%s", sym_name); |
| } |
| } |
| |
| if (q->addend) |
| { |
| printf ("+0x"); |
| objdump_print_value (q->addend, info, true); |
| } |
| |
| printf ("\n"); |
| need_nl = false; |
| ++(*relppp); |
| } |
| } |
| |
| if (need_nl) |
| printf ("\n"); |
| |
| i += bytes; |
| } |
| } |
| |
| /* Disassemble the contents of an object file. */ |
| |
| static void |
| disassemble_data (abfd) |
| bfd *abfd; |
| { |
| long i; |
| disassembler_ftype disassemble_fn; |
| struct disassemble_info disasm_info; |
| struct objdump_disasm_info aux; |
| asection *section; |
| |
| print_files = NULL; |
| prev_functionname = NULL; |
| prev_line = -1; |
| |
| /* We make a copy of syms to sort. We don't want to sort syms |
| because that will screw up the relocs. */ |
| sorted_syms = (asymbol **) xmalloc (symcount * sizeof (asymbol *)); |
| memcpy (sorted_syms, syms, symcount * sizeof (asymbol *)); |
| |
| sorted_symcount = remove_useless_symbols (sorted_syms, symcount); |
| |
| /* Sort the symbols into section and symbol order */ |
| qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols); |
| |
| INIT_DISASSEMBLE_INFO(disasm_info, stdout, fprintf); |
| disasm_info.application_data = (PTR) &aux; |
| aux.abfd = abfd; |
| aux.require_sec = false; |
| disasm_info.print_address_func = objdump_print_address; |
| disasm_info.symbol_at_address_func = objdump_symbol_at_address; |
| |
| if (machine != (char *) NULL) |
| { |
| const bfd_arch_info_type *info = bfd_scan_arch (machine); |
| if (info == NULL) |
| { |
| fprintf (stderr, _("%s: Can't use supplied machine %s\n"), |
| program_name, |
| machine); |
| exit (1); |
| } |
| abfd->arch_info = info; |
| } |
| |
| if (endian != BFD_ENDIAN_UNKNOWN) |
| { |
| struct bfd_target *xvec; |
| |
| xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target)); |
| memcpy (xvec, abfd->xvec, sizeof (struct bfd_target)); |
| xvec->byteorder = endian; |
| abfd->xvec = xvec; |
| } |
| |
| disassemble_fn = disassembler (abfd); |
| if (!disassemble_fn) |
| { |
| fprintf (stderr, _("%s: Can't disassemble for architecture %s\n"), |
| program_name, |
| bfd_printable_arch_mach (bfd_get_arch (abfd), 0)); |
| return; |
| } |
| |
| disasm_info.flavour = bfd_get_flavour (abfd); |
| disasm_info.arch = bfd_get_arch (abfd); |
| disasm_info.mach = bfd_get_mach (abfd); |
| disasm_info.disassembler_options = disassembler_options; |
| |
| if (bfd_big_endian (abfd)) |
| disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG; |
| else if (bfd_little_endian (abfd)) |
| disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_LITTLE; |
| else |
| /* ??? Aborting here seems too drastic. We could default to big or little |
| instead. */ |
| disasm_info.endian = BFD_ENDIAN_UNKNOWN; |
| |
| for (section = abfd->sections; |
| section != (asection *) NULL; |
| section = section->next) |
| { |
| bfd_byte *data = NULL; |
| bfd_size_type datasize = 0; |
| arelent **relbuf = NULL; |
| arelent **relpp = NULL; |
| arelent **relppend = NULL; |
| long stop; |
| asymbol *sym = NULL; |
| long place = 0; |
| |
| if ((section->flags & SEC_LOAD) == 0 |
| || (! disassemble_all |
| && only == NULL |
| && (section->flags & SEC_CODE) == 0)) |
| continue; |
| if (only != (char *) NULL && strcmp (only, section->name) != 0) |
| continue; |
| |
| if (dump_reloc_info |
| && (section->flags & SEC_RELOC) != 0) |
| { |
| long relsize; |
| |
| relsize = bfd_get_reloc_upper_bound (abfd, section); |
| if (relsize < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| |
| if (relsize > 0) |
| { |
| long relcount; |
| |
| relbuf = (arelent **) xmalloc (relsize); |
| relcount = bfd_canonicalize_reloc (abfd, section, relbuf, syms); |
| if (relcount < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| |
| /* Sort the relocs by address. */ |
| qsort (relbuf, relcount, sizeof (arelent *), compare_relocs); |
| |
| relpp = relbuf; |
| relppend = relpp + relcount; |
| |
| /* Skip over the relocs belonging to addresses below the |
| start address. */ |
| if (start_address != (bfd_vma) -1) |
| { |
| while (relpp < relppend |
| && (*relpp)->address < start_address) |
| ++relpp; |
| } |
| } |
| } |
| |
| printf (_("Disassembly of section %s:\n"), section->name); |
| |
| datasize = bfd_get_section_size_before_reloc (section); |
| if (datasize == 0) |
| continue; |
| |
| data = (bfd_byte *) xmalloc ((size_t) datasize); |
| |
| bfd_get_section_contents (abfd, section, data, 0, datasize); |
| |
| aux.sec = section; |
| disasm_info.buffer = data; |
| disasm_info.buffer_vma = section->vma; |
| disasm_info.buffer_length = datasize; |
| if (start_address == (bfd_vma) -1 |
| || start_address < disasm_info.buffer_vma) |
| i = 0; |
| else |
| i = start_address - disasm_info.buffer_vma; |
| if (stop_address == (bfd_vma) -1) |
| stop = datasize; |
| else |
| { |
| if (stop_address < disasm_info.buffer_vma) |
| stop = 0; |
| else |
| stop = stop_address - disasm_info.buffer_vma; |
| if (stop > disasm_info.buffer_length) |
| stop = disasm_info.buffer_length; |
| } |
| |
| sym = find_symbol_for_address (abfd, section, section->vma + i, |
| true, &place); |
| |
| while (i < stop) |
| { |
| asymbol *nextsym; |
| long nextstop; |
| boolean insns; |
| |
| if (sym != NULL && bfd_asymbol_value (sym) <= section->vma + i) |
| { |
| int x; |
| |
| for (x = place; |
| (x < sorted_symcount |
| && bfd_asymbol_value (sorted_syms[x]) <= section->vma + i); |
| ++x) |
| continue; |
| disasm_info.symbols = & sorted_syms[place]; |
| disasm_info.num_symbols = x - place; |
| } |
| else |
| disasm_info.symbols = NULL; |
| |
| if (! prefix_addresses) |
| { |
| printf ("\n"); |
| objdump_print_addr_with_sym (abfd, section, sym, |
| section->vma + i, |
| &disasm_info, |
| false); |
| printf (":\n"); |
| } |
| |
| if (sym != NULL && bfd_asymbol_value (sym) > section->vma + i) |
| nextsym = sym; |
| else if (sym == NULL) |
| nextsym = NULL; |
| else |
| { |
| while (place < sorted_symcount |
| /* ??? Why the test for != section? */ |
| && (sorted_syms[place]->section != section |
| || (bfd_asymbol_value (sorted_syms[place]) |
| <= bfd_asymbol_value (sym)))) |
| ++place; |
| if (place >= sorted_symcount) |
| nextsym = NULL; |
| else |
| nextsym = sorted_syms[place]; |
| } |
| |
| if (sym != NULL && bfd_asymbol_value (sym) > section->vma + i) |
| { |
| nextstop = bfd_asymbol_value (sym) - section->vma; |
| if (nextstop > stop) |
| nextstop = stop; |
| } |
| else if (nextsym == NULL) |
| nextstop = stop; |
| else |
| { |
| nextstop = bfd_asymbol_value (nextsym) - section->vma; |
| if (nextstop > stop) |
| nextstop = stop; |
| } |
| |
| /* If a symbol is explicitly marked as being an object |
| rather than a function, just dump the bytes without |
| disassembling them. */ |
| if (disassemble_all |
| || sym == NULL |
| || bfd_asymbol_value (sym) > section->vma + i |
| || ((sym->flags & BSF_OBJECT) == 0 |
| && (strstr (bfd_asymbol_name (sym), "gnu_compiled") |
| == NULL) |
| && (strstr (bfd_asymbol_name (sym), "gcc2_compiled") |
| == NULL)) |
| || (sym->flags & BSF_FUNCTION) != 0) |
| insns = true; |
| else |
| insns = false; |
| |
| disassemble_bytes (&disasm_info, disassemble_fn, insns, data, i, |
| nextstop, &relpp, relppend); |
| |
| i = nextstop; |
| sym = nextsym; |
| } |
| |
| free (data); |
| if (relbuf != NULL) |
| free (relbuf); |
| } |
| free (sorted_syms); |
| } |
| |
| |
| /* Define a table of stab values and print-strings. We wish the initializer |
| could be a direct-mapped table, but instead we build one the first |
| time we need it. */ |
| |
| static void dump_section_stabs PARAMS ((bfd *abfd, char *stabsect_name, |
| char *strsect_name)); |
| |
| /* Dump the stabs sections from an object file that has a section that |
| uses Sun stabs encoding. */ |
| |
| static void |
| dump_stabs (abfd) |
| bfd *abfd; |
| { |
| dump_section_stabs (abfd, ".stab", ".stabstr"); |
| dump_section_stabs (abfd, ".stab.excl", ".stab.exclstr"); |
| dump_section_stabs (abfd, ".stab.index", ".stab.indexstr"); |
| dump_section_stabs (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$"); |
| } |
| |
| static bfd_byte *stabs; |
| static bfd_size_type stab_size; |
| |
| static char *strtab; |
| static bfd_size_type stabstr_size; |
| |
| /* Read ABFD's stabs section STABSECT_NAME into `stabs' |
| and string table section STRSECT_NAME into `strtab'. |
| If the section exists and was read, allocate the space and return true. |
| Otherwise return false. */ |
| |
| static boolean |
| read_section_stabs (abfd, stabsect_name, strsect_name) |
| bfd *abfd; |
| const char *stabsect_name; |
| const char *strsect_name; |
| { |
| asection *stabsect, *stabstrsect; |
| |
| stabsect = bfd_get_section_by_name (abfd, stabsect_name); |
| if (0 == stabsect) |
| { |
| printf (_("No %s section present\n\n"), stabsect_name); |
| return false; |
| } |
| |
| stabstrsect = bfd_get_section_by_name (abfd, strsect_name); |
| if (0 == stabstrsect) |
| { |
| fprintf (stderr, _("%s: %s has no %s section\n"), program_name, |
| bfd_get_filename (abfd), strsect_name); |
| return false; |
| } |
| |
| stab_size = bfd_section_size (abfd, stabsect); |
| stabstr_size = bfd_section_size (abfd, stabstrsect); |
| |
| stabs = (bfd_byte *) xmalloc (stab_size); |
| strtab = (char *) xmalloc (stabstr_size); |
| |
| if (! bfd_get_section_contents (abfd, stabsect, (PTR) stabs, 0, stab_size)) |
| { |
| fprintf (stderr, _("%s: Reading %s section of %s failed: %s\n"), |
| program_name, stabsect_name, bfd_get_filename (abfd), |
| bfd_errmsg (bfd_get_error ())); |
| free (stabs); |
| free (strtab); |
| return false; |
| } |
| |
| if (! bfd_get_section_contents (abfd, stabstrsect, (PTR) strtab, 0, |
| stabstr_size)) |
| { |
| fprintf (stderr, _("%s: Reading %s section of %s failed: %s\n"), |
| program_name, strsect_name, bfd_get_filename (abfd), |
| bfd_errmsg (bfd_get_error ())); |
| free (stabs); |
| free (strtab); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /* Stabs entries use a 12 byte format: |
| 4 byte string table index |
| 1 byte stab type |
| 1 byte stab other field |
| 2 byte stab desc field |
| 4 byte stab value |
| FIXME: This will have to change for a 64 bit object format. */ |
| |
| #define STRDXOFF (0) |
| #define TYPEOFF (4) |
| #define OTHEROFF (5) |
| #define DESCOFF (6) |
| #define VALOFF (8) |
| #define STABSIZE (12) |
| |
| /* Print ABFD's stabs section STABSECT_NAME (in `stabs'), |
| using string table section STRSECT_NAME (in `strtab'). */ |
| |
| static void |
| print_section_stabs (abfd, stabsect_name, strsect_name) |
| bfd *abfd; |
| const char *stabsect_name; |
| const char *strsect_name; |
| { |
| int i; |
| unsigned file_string_table_offset = 0, next_file_string_table_offset = 0; |
| bfd_byte *stabp, *stabs_end; |
| |
| stabp = stabs; |
| stabs_end = stabp + stab_size; |
| |
| printf (_("Contents of %s section:\n\n"), stabsect_name); |
| printf ("Symnum n_type n_othr n_desc n_value n_strx String\n"); |
| |
| /* Loop through all symbols and print them. |
| |
| We start the index at -1 because there is a dummy symbol on |
| the front of stabs-in-{coff,elf} sections that supplies sizes. */ |
| |
| for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++) |
| { |
| const char *name; |
| unsigned long strx; |
| unsigned char type, other; |
| unsigned short desc; |
| bfd_vma value; |
| |
| strx = bfd_h_get_32 (abfd, stabp + STRDXOFF); |
| type = bfd_h_get_8 (abfd, stabp + TYPEOFF); |
| other = bfd_h_get_8 (abfd, stabp + OTHEROFF); |
| desc = bfd_h_get_16 (abfd, stabp + DESCOFF); |
| value = bfd_h_get_32 (abfd, stabp + VALOFF); |
| |
| printf ("\n%-6d ", i); |
| /* Either print the stab name, or, if unnamed, print its number |
| again (makes consistent formatting for tools like awk). */ |
| name = bfd_get_stab_name (type); |
| if (name != NULL) |
| printf ("%-6s", name); |
| else if (type == N_UNDF) |
| printf ("HdrSym"); |
| else |
| printf ("%-6d", type); |
| printf (" %-6d %-6d ", other, desc); |
| printf_vma (value); |
| printf (" %-6lu", strx); |
| |
| /* Symbols with type == 0 (N_UNDF) specify the length of the |
| string table associated with this file. We use that info |
| to know how to relocate the *next* file's string table indices. */ |
| |
| if (type == N_UNDF) |
| { |
| file_string_table_offset = next_file_string_table_offset; |
| next_file_string_table_offset += value; |
| } |
| else |
| { |
| /* Using the (possibly updated) string table offset, print the |
| string (if any) associated with this symbol. */ |
| |
| if ((strx + file_string_table_offset) < stabstr_size) |
| printf (" %s", &strtab[strx + file_string_table_offset]); |
| else |
| printf (" *"); |
| } |
| } |
| printf ("\n\n"); |
| } |
| |
| static void |
| dump_section_stabs (abfd, stabsect_name, strsect_name) |
| bfd *abfd; |
| char *stabsect_name; |
| char *strsect_name; |
| { |
| asection *s; |
| |
| /* Check for section names for which stabsect_name is a prefix, to |
| handle .stab0, etc. */ |
| for (s = abfd->sections; |
| s != NULL; |
| s = s->next) |
| { |
| int len; |
| |
| len = strlen (stabsect_name); |
| |
| /* If the prefix matches, and the files section name ends with a |
| nul or a digit, then we match. I.e., we want either an exact |
| match or a section followed by a number. */ |
| if (strncmp (stabsect_name, s->name, len) == 0 |
| && (s->name[len] == '\000' |
| || isdigit ((unsigned char) s->name[len]))) |
| { |
| if (read_section_stabs (abfd, s->name, strsect_name)) |
| { |
| print_section_stabs (abfd, s->name, strsect_name); |
| free (stabs); |
| free (strtab); |
| } |
| } |
| } |
| } |
| |
| static void |
| dump_bfd_header (abfd) |
| bfd *abfd; |
| { |
| char *comma = ""; |
| |
| printf (_("architecture: %s, "), |
| bfd_printable_arch_mach (bfd_get_arch (abfd), |
| bfd_get_mach (abfd))); |
| printf (_("flags 0x%08x:\n"), abfd->flags); |
| |
| #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";} |
| PF (HAS_RELOC, "HAS_RELOC"); |
| PF (EXEC_P, "EXEC_P"); |
| PF (HAS_LINENO, "HAS_LINENO"); |
| PF (HAS_DEBUG, "HAS_DEBUG"); |
| PF (HAS_SYMS, "HAS_SYMS"); |
| PF (HAS_LOCALS, "HAS_LOCALS"); |
| PF (DYNAMIC, "DYNAMIC"); |
| PF (WP_TEXT, "WP_TEXT"); |
| PF (D_PAGED, "D_PAGED"); |
| PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE"); |
| printf (_("\nstart address 0x")); |
| printf_vma (abfd->start_address); |
| printf ("\n"); |
| } |
| |
| static void |
| dump_bfd_private_header (abfd) |
| bfd *abfd; |
| { |
| bfd_print_private_bfd_data (abfd, stdout); |
| } |
| |
| static void |
| display_bfd (abfd) |
| bfd *abfd; |
| { |
| char **matching; |
| |
| if (!bfd_check_format_matches (abfd, bfd_object, &matching)) |
| { |
| bfd_nonfatal (bfd_get_filename (abfd)); |
| if (bfd_get_error () == bfd_error_file_ambiguously_recognized) |
| { |
| list_matching_formats (matching); |
| free (matching); |
| } |
| return; |
| } |
| |
| /* If we are adjusting section VMA's, change them all now. Changing |
| the BFD information is a hack. However, we must do it, or |
| bfd_find_nearest_line will not do the right thing. */ |
| if (adjust_section_vma != 0) |
| { |
| asection *s; |
| |
| for (s = abfd->sections; s != NULL; s = s->next) |
| { |
| s->vma += adjust_section_vma; |
| s->lma += adjust_section_vma; |
| } |
| } |
| |
| printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd), |
| abfd->xvec->name); |
| if (dump_ar_hdrs) |
| print_arelt_descr (stdout, abfd, true); |
| if (dump_file_header) |
| dump_bfd_header (abfd); |
| if (dump_private_headers) |
| dump_bfd_private_header (abfd); |
| putchar ('\n'); |
| if (dump_section_headers) |
| dump_headers (abfd); |
| if (dump_symtab || dump_reloc_info || disassemble || dump_debugging) |
| { |
| syms = slurp_symtab (abfd); |
| } |
| if (dump_dynamic_symtab || dump_dynamic_reloc_info) |
| { |
| dynsyms = slurp_dynamic_symtab (abfd); |
| } |
| if (dump_symtab) |
| dump_symbols (abfd, false); |
| if (dump_dynamic_symtab) |
| dump_symbols (abfd, true); |
| if (dump_stab_section_info) |
| dump_stabs (abfd); |
| if (dump_reloc_info && ! disassemble) |
| dump_relocs (abfd); |
| if (dump_dynamic_reloc_info) |
| dump_dynamic_relocs (abfd); |
| if (dump_section_contents) |
| dump_data (abfd); |
| if (disassemble) |
| disassemble_data (abfd); |
| if (dump_debugging) |
| { |
| PTR dhandle; |
| |
| dhandle = read_debugging_info (abfd, syms, symcount); |
| if (dhandle != NULL) |
| { |
| if (! print_debugging_info (stdout, dhandle)) |
| fprintf (stderr, _("%s: printing debugging information failed\n"), |
| bfd_get_filename (abfd)); |
| } |
| } |
| if (syms) |
| { |
| free (syms); |
| syms = NULL; |
| } |
| if (dynsyms) |
| { |
| free (dynsyms); |
| dynsyms = NULL; |
| } |
| } |
| |
| static void |
| display_file (filename, target) |
| char *filename; |
| char *target; |
| { |
| bfd *file, *arfile = (bfd *) NULL; |
| |
| file = bfd_openr (filename, target); |
| if (file == NULL) |
| { |
| bfd_nonfatal (filename); |
| return; |
| } |
| |
| if (bfd_check_format (file, bfd_archive) == true) |
| { |
| bfd *last_arfile = NULL; |
| |
| printf (_("In archive %s:\n"), bfd_get_filename (file)); |
| for (;;) |
| { |
| bfd_set_error (bfd_error_no_error); |
| |
| arfile = bfd_openr_next_archived_file (file, arfile); |
| if (arfile == NULL) |
| { |
| if (bfd_get_error () != bfd_error_no_more_archived_files) |
| { |
| bfd_nonfatal (bfd_get_filename (file)); |
| } |
| break; |
| } |
| |
| display_bfd (arfile); |
| |
| if (last_arfile != NULL) |
| bfd_close (last_arfile); |
| last_arfile = arfile; |
| } |
| |
| if (last_arfile != NULL) |
| bfd_close (last_arfile); |
| } |
| else |
| display_bfd (file); |
| |
| bfd_close (file); |
| } |
| |
| /* Actually display the various requested regions */ |
| |
| static void |
| dump_data (abfd) |
| bfd *abfd; |
| { |
| asection *section; |
| bfd_byte *data = 0; |
| bfd_size_type datasize = 0; |
| bfd_size_type i; |
| bfd_size_type start, stop; |
| |
| for (section = abfd->sections; section != NULL; section = |
| section->next) |
| { |
| int onaline = 16; |
| |
| if (only == (char *) NULL || |
| strcmp (only, section->name) == 0) |
| { |
| if (section->flags & SEC_HAS_CONTENTS) |
| { |
| printf (_("Contents of section %s:\n"), section->name); |
| |
| if (bfd_section_size (abfd, section) == 0) |
| continue; |
| data = (bfd_byte *) xmalloc ((size_t) bfd_section_size (abfd, section)); |
| datasize = bfd_section_size (abfd, section); |
| |
| |
| bfd_get_section_contents (abfd, section, (PTR) data, 0, bfd_section_size (abfd, section)); |
| |
| if (start_address == (bfd_vma) -1 |
| || start_address < section->vma) |
| start = 0; |
| else |
| start = start_address - section->vma; |
| if (stop_address == (bfd_vma) -1) |
| stop = bfd_section_size (abfd, section); |
| else |
| { |
| if (stop_address < section->vma) |
| stop = 0; |
| else |
| stop = stop_address - section->vma; |
| if (stop > bfd_section_size (abfd, section)) |
| stop = bfd_section_size (abfd, section); |
| } |
| for (i = start; i < stop; i += onaline) |
| { |
| bfd_size_type j; |
| |
| printf (" %04lx ", (unsigned long int) (i + section->vma)); |
| for (j = i; j < i + onaline; j++) |
| { |
| if (j < stop) |
| printf ("%02x", (unsigned) (data[j])); |
| else |
| printf (" "); |
| if ((j & 3) == 3) |
| printf (" "); |
| } |
| |
| printf (" "); |
| for (j = i; j < i + onaline; j++) |
| { |
| if (j >= stop) |
| printf (" "); |
| else |
| printf ("%c", isprint (data[j]) ? data[j] : '.'); |
| } |
| putchar ('\n'); |
| } |
| free (data); |
| } |
| } |
| } |
| } |
| |
| /* Should perhaps share code and display with nm? */ |
| static void |
| dump_symbols (abfd, dynamic) |
| bfd *abfd; |
| boolean dynamic; |
| { |
| asymbol **current; |
| long max; |
| long count; |
| |
| if (dynamic) |
| { |
| current = dynsyms; |
| max = dynsymcount; |
| if (max == 0) |
| return; |
| printf ("DYNAMIC SYMBOL TABLE:\n"); |
| } |
| else |
| { |
| current = syms; |
| max = symcount; |
| if (max == 0) |
| return; |
| printf ("SYMBOL TABLE:\n"); |
| } |
| |
| for (count = 0; count < max; count++) |
| { |
| if (*current) |
| { |
| bfd *cur_bfd = bfd_asymbol_bfd (*current); |
| |
| if (cur_bfd != NULL) |
| { |
| const char *name; |
| char *alloc; |
| |
| name = bfd_asymbol_name (*current); |
| alloc = NULL; |
| if (do_demangle && name != NULL && *name != '\0') |
| { |
| const char *n; |
| |
| /* If we want to demangle the name, we demangle it |
| here, and temporarily clobber it while calling |
| bfd_print_symbol. FIXME: This is a gross hack. */ |
| |
| n = name; |
| if (bfd_get_symbol_leading_char (cur_bfd) == *n) |
| ++n; |
| alloc = cplus_demangle (n, DMGL_ANSI | DMGL_PARAMS); |
| if (alloc != NULL) |
| (*current)->name = alloc; |
| else |
| (*current)->name = n; |
| } |
| |
| bfd_print_symbol (cur_bfd, stdout, *current, |
| bfd_print_symbol_all); |
| |
| (*current)->name = name; |
| if (alloc != NULL) |
| free (alloc); |
| |
| printf ("\n"); |
| } |
| } |
| current++; |
| } |
| printf ("\n"); |
| printf ("\n"); |
| } |
| |
| static void |
| dump_relocs (abfd) |
| bfd *abfd; |
| { |
| arelent **relpp; |
| long relcount; |
| asection *a; |
| |
| for (a = abfd->sections; a != (asection *) NULL; a = a->next) |
| { |
| long relsize; |
| |
| if (bfd_is_abs_section (a)) |
| continue; |
| if (bfd_is_und_section (a)) |
| continue; |
| if (bfd_is_com_section (a)) |
| continue; |
| |
| if (only) |
| { |
| if (strcmp (only, a->name)) |
| continue; |
| } |
| else if ((a->flags & SEC_RELOC) == 0) |
| continue; |
| |
| relsize = bfd_get_reloc_upper_bound (abfd, a); |
| if (relsize < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| |
| printf ("RELOCATION RECORDS FOR [%s]:", a->name); |
| |
| if (relsize == 0) |
| { |
| printf (" (none)\n\n"); |
| } |
| else |
| { |
| relpp = (arelent **) xmalloc (relsize); |
| relcount = bfd_canonicalize_reloc (abfd, a, relpp, syms); |
| if (relcount < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| else if (relcount == 0) |
| { |
| printf (" (none)\n\n"); |
| } |
| else |
| { |
| printf ("\n"); |
| dump_reloc_set (abfd, a, relpp, relcount); |
| printf ("\n\n"); |
| } |
| free (relpp); |
| } |
| } |
| } |
| |
| static void |
| dump_dynamic_relocs (abfd) |
| bfd *abfd; |
| { |
| long relsize; |
| arelent **relpp; |
| long relcount; |
| |
| relsize = bfd_get_dynamic_reloc_upper_bound (abfd); |
| if (relsize < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| |
| printf ("DYNAMIC RELOCATION RECORDS"); |
| |
| if (relsize == 0) |
| { |
| printf (" (none)\n\n"); |
| } |
| else |
| { |
| relpp = (arelent **) xmalloc (relsize); |
| relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms); |
| if (relcount < 0) |
| bfd_fatal (bfd_get_filename (abfd)); |
| else if (relcount == 0) |
| { |
| printf (" (none)\n\n"); |
| } |
| else |
| { |
| printf ("\n"); |
| dump_reloc_set (abfd, (asection *) NULL, relpp, relcount); |
| printf ("\n\n"); |
| } |
| free (relpp); |
| } |
| } |
| |
| static void |
| dump_reloc_set (abfd, sec, relpp, relcount) |
| bfd *abfd; |
| asection *sec; |
| arelent **relpp; |
| long relcount; |
| { |
| arelent **p; |
| char *last_filename, *last_functionname; |
| unsigned int last_line; |
| |
| /* Get column headers lined up reasonably. */ |
| { |
| static int width; |
| if (width == 0) |
| { |
| char buf[30]; |
| sprintf_vma (buf, (bfd_vma) -1); |
| width = strlen (buf) - 7; |
| } |
| printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, ""); |
| } |
| |
| last_filename = NULL; |
| last_functionname = NULL; |
| last_line = 0; |
| |
| for (p = relpp; relcount && *p != (arelent *) NULL; p++, relcount--) |
| { |
| arelent *q = *p; |
| const char *filename, *functionname; |
| unsigned int line; |
| const char *sym_name; |
| const char *section_name; |
| |
| if (start_address != (bfd_vma) -1 |
| && q->address < start_address) |
| continue; |
| if (stop_address != (bfd_vma) -1 |
| && q->address > stop_address) |
| continue; |
| |
| if (with_line_numbers |
| && sec != NULL |
| && bfd_find_nearest_line (abfd, sec, syms, q->address, |
| &filename, &functionname, &line)) |
| { |
| if (functionname != NULL |
| && (last_functionname == NULL |
| || strcmp (functionname, last_functionname) != 0)) |
| { |
| printf ("%s():\n", functionname); |
| if (last_functionname != NULL) |
| free (last_functionname); |
| last_functionname = xstrdup (functionname); |
| } |
| if (line > 0 |
| && (line != last_line |
| || (filename != NULL |
| && last_filename != NULL |
| && strcmp (filename, last_filename) != 0))) |
| { |
| printf ("%s:%u\n", filename == NULL ? "???" : filename, line); |
| last_line = line; |
| if (last_filename != NULL) |
| free (last_filename); |
| if (filename == NULL) |
| last_filename = NULL; |
| else |
| last_filename = xstrdup (filename); |
| } |
| } |
| |
| if (q->sym_ptr_ptr && *q->sym_ptr_ptr) |
| { |
| sym_name = (*(q->sym_ptr_ptr))->name; |
| section_name = (*(q->sym_ptr_ptr))->section->name; |
| } |
| else |
| { |
| sym_name = NULL; |
| section_name = NULL; |
| } |
| if (sym_name) |
| { |
| printf_vma (q->address); |
| if (q->howto->name) |
| printf (" %-16s ", q->howto->name); |
| else |
| printf (" %-16d ", q->howto->type); |
| objdump_print_symname (abfd, (struct disassemble_info *) NULL, |
| *q->sym_ptr_ptr); |
| } |
| else |
| { |
| if (section_name == (CONST char *) NULL) |
| section_name = "*unknown*"; |
| printf_vma (q->address); |
| printf (" %-16s [%s]", |
| q->howto->name, |
| section_name); |
| } |
| if (q->addend) |
| { |
| printf ("+0x"); |
| printf_vma (q->addend); |
| } |
| printf ("\n"); |
| } |
| } |
| |
| /* The length of the longest architecture name + 1. */ |
| #define LONGEST_ARCH sizeof("rs6000:6000") |
| |
| static const char * |
| endian_string (endian) |
| enum bfd_endian endian; |
| { |
| if (endian == BFD_ENDIAN_BIG) |
| return "big endian"; |
| else if (endian == BFD_ENDIAN_LITTLE) |
| return "little endian"; |
| else |
| return "endianness unknown"; |
| } |
| |
| /* List the targets that BFD is configured to support, each followed |
| by its endianness and the architectures it supports. */ |
| |
| static void |
| display_target_list () |
| { |
| extern bfd_target *bfd_target_vector[]; |
| char *dummy_name; |
| int t; |
| |
| dummy_name = choose_temp_base (); |
| for (t = 0; bfd_target_vector[t]; t++) |
| { |
| bfd_target *p = bfd_target_vector[t]; |
| bfd *abfd = bfd_openw (dummy_name, p->name); |
| int a; |
| |
| printf ("%s\n (header %s, data %s)\n", p->name, |
| endian_string (p->header_byteorder), |
| endian_string (p->byteorder)); |
| |
| if (abfd == NULL) |
| { |
| bfd_nonfatal (dummy_name); |
| continue; |
| } |
| |
| if (! bfd_set_format (abfd, bfd_object)) |
| { |
| if (bfd_get_error () != bfd_error_invalid_operation) |
| bfd_nonfatal (p->name); |
| continue; |
| } |
| |
| for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++) |
| if (bfd_set_arch_mach (abfd, (enum bfd_architecture) a, 0)) |
| printf (" %s\n", |
| bfd_printable_arch_mach ((enum bfd_architecture) a, 0)); |
| } |
| unlink (dummy_name); |
| free (dummy_name); |
| } |
| |
| /* Print a table showing which architectures are supported for entries |
| FIRST through LAST-1 of bfd_target_vector (targets across, |
| architectures down). */ |
| |
| static void |
| display_info_table (first, last) |
| int first; |
| int last; |
| { |
| extern bfd_target *bfd_target_vector[]; |
| int t, a; |
| char *dummy_name; |
| |
| /* Print heading of target names. */ |
| printf ("\n%*s", (int) LONGEST_ARCH, " "); |
| for (t = first; t < last && bfd_target_vector[t]; t++) |
| printf ("%s ", bfd_target_vector[t]->name); |
| putchar ('\n'); |
| |
| dummy_name = choose_temp_base (); |
| for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++) |
| if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0) |
| { |
| printf ("%*s ", (int) LONGEST_ARCH - 1, |
| bfd_printable_arch_mach (a, 0)); |
| for (t = first; t < last && bfd_target_vector[t]; t++) |
| { |
| bfd_target *p = bfd_target_vector[t]; |
| boolean ok = true; |
| bfd *abfd = bfd_openw (dummy_name, p->name); |
| |
| if (abfd == NULL) |
| { |
| bfd_nonfatal (p->name); |
| ok = false; |
| } |
| |
| if (ok) |
| { |
| if (! bfd_set_format (abfd, bfd_object)) |
| { |
| if (bfd_get_error () != bfd_error_invalid_operation) |
| bfd_nonfatal (p->name); |
| ok = false; |
| } |
| } |
| |
| if (ok) |
| { |
| if (! bfd_set_arch_mach (abfd, a, 0)) |
| ok = false; |
| } |
| |
| if (ok) |
| printf ("%s ", p->name); |
| else |
| { |
| int l = strlen (p->name); |
| while (l--) |
| putchar ('-'); |
| putchar (' '); |
| } |
| } |
| putchar ('\n'); |
| } |
| unlink (dummy_name); |
| free (dummy_name); |
| } |
| |
| /* Print tables of all the target-architecture combinations that |
| BFD has been configured to support. */ |
| |
| static void |
| display_target_tables () |
| { |
| int t, columns; |
| extern bfd_target *bfd_target_vector[]; |
| char *colum; |
| |
| columns = 0; |
| colum = getenv ("COLUMNS"); |
| if (colum != NULL) |
| columns = atoi (colum); |
| if (columns == 0) |
| columns = 80; |
| |
| t = 0; |
| while (bfd_target_vector[t] != NULL) |
| { |
| int oldt = t, wid; |
| |
| wid = LONGEST_ARCH + strlen (bfd_target_vector[t]->name) + 1; |
| ++t; |
| while (wid < columns && bfd_target_vector[t] != NULL) |
| { |
| int newwid; |
| |
| newwid = wid + strlen (bfd_target_vector[t]->name) + 1; |
| if (newwid >= columns) |
| break; |
| wid = newwid; |
| ++t; |
| } |
| display_info_table (oldt, t); |
| } |
| } |
| |
| static void |
| display_info () |
| { |
| printf (_("BFD header file version %s\n"), BFD_VERSION); |
| display_target_list (); |
| display_target_tables (); |
| } |
| |
| int |
| main (argc, argv) |
| int argc; |
| char **argv; |
| { |
| int c; |
| char *target = default_target; |
| boolean seenflag = false; |
| |
| #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES) |
| setlocale (LC_MESSAGES, ""); |
| #endif |
| bindtextdomain (PACKAGE, LOCALEDIR); |
| textdomain (PACKAGE); |
| |
| program_name = *argv; |
| xmalloc_set_program_name (program_name); |
| |
| START_PROGRESS (program_name, 0); |
| |
| bfd_init (); |
| set_default_bfd_target (); |
| |
| while ((c = getopt_long (argc, argv, "pib:m:M:VCdDlfahrRtTxsSj:wE:", |
| long_options, (int *) 0)) |
| != EOF) |
| { |
| if (c != 'l' && c != OPTION_START_ADDRESS && c != OPTION_STOP_ADDRESS) |
| seenflag = true; |
| switch (c) |
| { |
| case 0: |
| break; /* we've been given a long option */ |
| case 'm': |
| machine = optarg; |
| break; |
| case 'M': |
| disassembler_options = optarg; |
| break; |
| case 'j': |
| only = optarg; |
| break; |
| case 'l': |
| with_line_numbers = 1; |
| break; |
| case 'b': |
| target = optarg; |
| break; |
| case 'f': |
| dump_file_header = true; |
| break; |
| case 'i': |
| formats_info = true; |
| break; |
| case 'p': |
| dump_private_headers = 1; |
| break; |
| case 'x': |
| dump_private_headers = 1; |
| dump_symtab = 1; |
| dump_reloc_info = 1; |
| dump_file_header = true; |
| dump_ar_hdrs = 1; |
| dump_section_headers = 1; |
| break; |
| case 't': |
| dump_symtab = 1; |
| break; |
| case 'T': |
| dump_dynamic_symtab = 1; |
| break; |
| case 'C': |
| do_demangle = 1; |
| break; |
| case 'd': |
| disassemble = true; |
| break; |
| case 'D': |
| disassemble = disassemble_all = true; |
| break; |
| case 'S': |
| disassemble = true; |
| with_source_code = true; |
| break; |
| case 's': |
| dump_section_contents = 1; |
| break; |
| case 'r': |
| dump_reloc_info = 1; |
| break; |
| case 'R': |
| dump_dynamic_reloc_info = 1; |
| break; |
| case 'a': |
| dump_ar_hdrs = 1; |
| break; |
| case 'h': |
| dump_section_headers = 1; |
| break; |
| case 'H': |
| usage (stdout, 0); |
| case 'V': |
| show_version = 1; |
| break; |
| case 'w': |
| wide_output = 1; |
| break; |
| case OPTION_ADJUST_VMA: |
| adjust_section_vma = parse_vma (optarg, "--adjust-vma"); |
| break; |
| case OPTION_START_ADDRESS: |
| start_address = parse_vma (optarg, "--start-address"); |
| break; |
| case OPTION_STOP_ADDRESS: |
| stop_address = parse_vma (optarg, "--stop-address"); |
| break; |
| case 'E': |
| if (strcmp (optarg, "B") == 0) |
| endian = BFD_ENDIAN_BIG; |
| else if (strcmp (optarg, "L") == 0) |
| endian = BFD_ENDIAN_LITTLE; |
| else |
| { |
| fprintf (stderr, _("%s: unrecognized -E option\n"), program_name); |
| usage (stderr, 1); |
| } |
| break; |
| case OPTION_ENDIAN: |
| if (strncmp (optarg, "big", strlen (optarg)) == 0) |
| endian = BFD_ENDIAN_BIG; |
| else if (strncmp (optarg, "little", strlen (optarg)) == 0) |
| endian = BFD_ENDIAN_LITTLE; |
| else |
| { |
| fprintf (stderr, _("%s: unrecognized --endian type `%s'\n"), |
| program_name, optarg); |
| usage (stderr, 1); |
| } |
| break; |
| default: |
| usage (stderr, 1); |
| } |
| } |
| |
| if (show_version) |
| print_version ("objdump"); |
| |
| if (seenflag == false) |
| usage (stderr, 1); |
| |
| if (formats_info) |
| { |
| display_info (); |
| } |
| else |
| { |
| if (optind == argc) |
| display_file ("a.out", target); |
| else |
| for (; optind < argc;) |
| display_file (argv[optind++], target); |
| } |
| |
| END_PROGRESS (program_name); |
| |
| return 0; |
| } |