| /* ADI Blackfin BFD support for 32-bit ELF. |
| Copyright 2005 Free Software Foundation, Inc. |
| |
| This file is part of BFD, the Binary File Descriptor library. |
| |
| 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 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 "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| #include "elf-bfd.h" |
| #include "elf/bfin.h" |
| |
| /* Handling expression relocations for blackfin. Blackfin |
| will generate relocations in an expression form with a stack. |
| A relocation such as P1.H = _typenames-4000000; |
| will generate the following relocs at offset 4: |
| 00000004 R_expst_push _typenames |
| 00000004 R_expst_const .__constant |
| 00000004 R_expst_sub .__operator |
| 00000006 R_huimm16 .__operator |
| |
| The .__constant and .__operator symbol names are fake. |
| Special case is a single relocation |
| P1.L = _typenames; generates |
| 00000002 R_luimm16 _typenames |
| |
| Thus, if you get a R_luimm16, R_huimm16, R_imm16, |
| if the stack is not empty, pop the stack and |
| put the value, else do the normal thing |
| We will currently assume that the max the stack |
| would grow to is 100. . */ |
| |
| #define RELOC_STACK_SIZE 100 |
| static bfd_vma reloc_stack[RELOC_STACK_SIZE]; |
| static unsigned int reloc_stack_tos = 0; |
| |
| #define is_reloc_stack_empty() ((reloc_stack_tos > 0) ? 0 : 1) |
| |
| static void |
| reloc_stack_push (bfd_vma value) |
| { |
| reloc_stack[reloc_stack_tos++] = value; |
| } |
| |
| static bfd_vma |
| reloc_stack_pop (void) |
| { |
| return reloc_stack[--reloc_stack_tos]; |
| } |
| |
| static bfd_vma |
| reloc_stack_operate (unsigned int oper) |
| { |
| bfd_vma value; |
| switch (oper) |
| { |
| case R_add: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] + reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_sub: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] - reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_mult: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] * reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_div: |
| { |
| if (reloc_stack[reloc_stack_tos - 1] == 0) |
| { |
| _bfd_abort (__FILE__, __LINE__, _("Division by zero. ")); |
| } |
| else |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] / reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| } |
| break; |
| } |
| case R_mod: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] % reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_lshift: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] << reloc_stack[reloc_stack_tos - |
| 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_rshift: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] >> reloc_stack[reloc_stack_tos - |
| 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_and: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] & reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_or: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] | reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_xor: |
| { |
| value = |
| reloc_stack[reloc_stack_tos - 2] ^ reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_land: |
| { |
| value = reloc_stack[reloc_stack_tos - 2] |
| && reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_lor: |
| { |
| value = reloc_stack[reloc_stack_tos - 2] |
| || reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 2; |
| break; |
| } |
| case R_neg: |
| { |
| value = -reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos--; |
| break; |
| } |
| case R_comp: |
| { |
| value = ~reloc_stack[reloc_stack_tos - 1]; |
| reloc_stack_tos -= 1; |
| break; |
| } |
| default: |
| { |
| fprintf (stderr, "bfin relocation : Internal bug\n"); |
| return 0; |
| } |
| } |
| |
| reloc_stack_push (value); |
| |
| return value; |
| } |
| |
| /* FUNCTION : bfin_pltpc_reloc |
| ABSTRACT : TODO : figure out how to handle pltpc relocs. */ |
| static bfd_reloc_status_type |
| bfin_pltpc_reloc ( |
| bfd *abfd ATTRIBUTE_UNUSED, |
| arelent *reloc_entry ATTRIBUTE_UNUSED, |
| asymbol *symbol ATTRIBUTE_UNUSED, |
| PTR data ATTRIBUTE_UNUSED, |
| asection *input_section ATTRIBUTE_UNUSED, |
| bfd *output_bfd ATTRIBUTE_UNUSED, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| bfd_reloc_status_type flag = bfd_reloc_ok; |
| return flag; |
| } |
| |
| |
| static bfd_reloc_status_type |
| bfin_pcrel24_reloc (bfd *abfd, |
| arelent *reloc_entry, |
| asymbol *symbol, |
| PTR data, |
| asection *input_section, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| bfd_vma relocation; |
| bfd_size_type addr = reloc_entry->address; |
| bfd_vma output_base = 0; |
| reloc_howto_type *howto = reloc_entry->howto; |
| asection *output_section; |
| bfd_boolean relocatable = (output_bfd != NULL); |
| |
| if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
| return bfd_reloc_outofrange; |
| |
| if (!is_reloc_stack_empty ()) |
| relocation = reloc_stack_pop(); |
| else |
| { |
| if (bfd_is_und_section (symbol->section) |
| && (symbol->flags & BSF_WEAK) == 0 |
| && !relocatable) |
| return bfd_reloc_undefined; |
| |
| if (bfd_is_com_section (symbol->section)) |
| relocation = 0; |
| else |
| relocation = symbol->value; |
| |
| output_section = symbol->section->output_section; |
| |
| if (relocatable) |
| output_base = 0; |
| else |
| output_base = output_section->vma; |
| |
| if (!relocatable || !strcmp (symbol->name, symbol->section->name)) |
| relocation += output_base + symbol->section->output_offset; |
| |
| if (!relocatable && !strcmp (symbol->name, symbol->section->name)) |
| relocation += reloc_entry->addend; |
| } |
| |
| relocation -= input_section->output_section->vma + input_section->output_offset; |
| relocation -= reloc_entry->address; |
| |
| if (howto->complain_on_overflow != complain_overflow_dont) |
| { |
| bfd_reloc_status_type status; |
| status= bfd_check_overflow (howto->complain_on_overflow, |
| howto->bitsize, |
| howto->rightshift, |
| bfd_arch_bits_per_address(abfd), |
| relocation); |
| if (status != bfd_reloc_ok) |
| return status; |
| } |
| |
| /* if rightshift is 1 and the number odd, return error. */ |
| if (howto->rightshift && (relocation & 0x01)) |
| { |
| fprintf(stderr, "relocation should be even number\n"); |
| return bfd_reloc_overflow; |
| } |
| |
| relocation >>= (bfd_vma) howto->rightshift; |
| /* Shift everything up to where it's going to be used. */ |
| |
| relocation <<= (bfd_vma) howto->bitpos; |
| |
| if (relocatable) |
| { |
| reloc_entry->address += input_section->output_offset; |
| reloc_entry->addend += symbol->section->output_offset; |
| } |
| |
| { |
| short x; |
| |
| /* We are getting reloc_entry->address 2 byte off from |
| the start of instruction. Assuming absolute postion |
| of the reloc data. But, following code had been written assuming |
| reloc address is starting at begining of instruction. |
| To compensate that I have increased the value of |
| relocation by 1 (effectively 2) and used the addr -2 instead of addr. */ |
| |
| relocation += 1; |
| x = bfd_get_16 (abfd, (bfd_byte *) data + addr - 2); |
| x = (x & 0xff00) | ((relocation >> 16) & 0xff); |
| bfd_put_16 (abfd, x, (unsigned char *) data + addr - 2); |
| |
| x = bfd_get_16 (abfd, (bfd_byte *) data + addr); |
| x = relocation & 0xFFFF; |
| bfd_put_16 (abfd, x, (unsigned char *) data + addr ); |
| } |
| return bfd_reloc_ok; |
| } |
| |
| static bfd_reloc_status_type |
| bfin_push_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| arelent *reloc_entry, |
| asymbol *symbol, |
| PTR data ATTRIBUTE_UNUSED, |
| asection *input_section, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| bfd_vma relocation; |
| bfd_vma output_base = 0; |
| asection *output_section; |
| bfd_boolean relocatable = (output_bfd != NULL); |
| |
| if (bfd_is_und_section (symbol->section) |
| && (symbol->flags & BSF_WEAK) == 0 |
| && !relocatable) |
| return bfd_reloc_undefined; |
| |
| /* Is the address of the relocation really within the section? */ |
| if (reloc_entry->address > bfd_get_section_limit(abfd, input_section)) |
| return bfd_reloc_outofrange; |
| |
| output_section = symbol->section->output_section; |
| relocation = symbol->value; |
| |
| /* Convert input-section-relative symbol value to absolute. */ |
| if (relocatable) |
| output_base = 0; |
| else |
| output_base = output_section->vma; |
| |
| if (!relocatable || !strcmp(symbol->name, symbol->section->name)) |
| relocation += output_base + symbol->section->output_offset; |
| |
| /* Add in supplied addend. */ |
| relocation += reloc_entry->addend; |
| |
| if (relocatable) |
| { |
| reloc_entry->address += input_section->output_offset; |
| reloc_entry->addend += symbol->section->output_offset; |
| } |
| |
| /* Now that we have the value, push it. */ |
| reloc_stack_push (relocation); |
| |
| return bfd_reloc_ok; |
| } |
| |
| static bfd_reloc_status_type |
| bfin_oper_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| arelent *reloc_entry, |
| asymbol *symbol ATTRIBUTE_UNUSED, |
| PTR data ATTRIBUTE_UNUSED, |
| asection *input_section, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| bfd_boolean relocatable = (output_bfd != NULL); |
| |
| /* Just call the operation based on the reloc_type. */ |
| reloc_stack_operate (reloc_entry->howto->type); |
| |
| if (relocatable) |
| reloc_entry->address += input_section->output_offset; |
| |
| return bfd_reloc_ok; |
| } |
| |
| static bfd_reloc_status_type |
| bfin_const_reloc (bfd *abfd ATTRIBUTE_UNUSED, |
| arelent *reloc_entry, |
| asymbol *symbol ATTRIBUTE_UNUSED, |
| PTR data ATTRIBUTE_UNUSED, |
| asection *input_section, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| bfd_boolean relocatable = (output_bfd != NULL); |
| |
| /* Push the addend portion of the relocation. */ |
| reloc_stack_push (reloc_entry->addend); |
| |
| if (relocatable) |
| reloc_entry->address += input_section->output_offset; |
| |
| return bfd_reloc_ok; |
| } |
| |
| static bfd_reloc_status_type |
| bfin_imm16_reloc (bfd *abfd, |
| arelent *reloc_entry, |
| asymbol *symbol, |
| PTR data, |
| asection *input_section, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| bfd_vma relocation, x; |
| bfd_size_type reloc_addr = reloc_entry->address; |
| bfd_vma output_base = 0; |
| reloc_howto_type *howto = reloc_entry->howto; |
| asection *output_section; |
| bfd_boolean relocatable = (output_bfd != NULL); |
| |
| /* Is the address of the relocation really within the section? */ |
| if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
| return bfd_reloc_outofrange; |
| |
| if (is_reloc_stack_empty ()) |
| { |
| if (bfd_is_und_section (symbol->section) |
| && (symbol->flags & BSF_WEAK) == 0 |
| && !relocatable) |
| return bfd_reloc_undefined; |
| |
| output_section = symbol->section->output_section; |
| relocation = symbol->value; |
| |
| /* Convert input-section-relative symbol value to absolute. */ |
| if (relocatable) |
| output_base = 0; |
| else |
| output_base = output_section->vma; |
| |
| if (!relocatable || !strcmp (symbol->name, symbol->section->name)) |
| relocation += output_base + symbol->section->output_offset; |
| |
| /* Add in supplied addend. */ |
| relocation += reloc_entry->addend; |
| } |
| else |
| { |
| relocation = reloc_stack_pop (); |
| } |
| |
| if (relocatable) |
| { |
| reloc_entry->address += input_section->output_offset; |
| reloc_entry->addend += symbol->section->output_offset; |
| } |
| else |
| { |
| reloc_entry->addend = 0; |
| } |
| |
| if (howto->complain_on_overflow != complain_overflow_dont) |
| { |
| bfd_reloc_status_type flag; |
| flag = bfd_check_overflow (howto->complain_on_overflow, |
| howto->bitsize, |
| howto->rightshift, |
| bfd_arch_bits_per_address(abfd), |
| relocation); |
| if (flag != bfd_reloc_ok) |
| return flag; |
| } |
| |
| |
| /* Here the variable relocation holds the final address of the |
| symbol we are relocating against, plus any addend. */ |
| |
| relocation >>= (bfd_vma) howto->rightshift; |
| x = relocation; |
| bfd_put_16 (abfd, x, (unsigned char *) data + reloc_addr); |
| return bfd_reloc_ok; |
| } |
| |
| |
| static bfd_reloc_status_type |
| bfin_byte4_reloc (bfd *abfd, |
| arelent *reloc_entry, |
| asymbol *symbol, |
| PTR data, |
| asection *input_section, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| bfd_vma relocation, x; |
| bfd_size_type addr = reloc_entry->address; |
| bfd_vma output_base = 0; |
| asection *output_section; |
| bfd_boolean relocatable = (output_bfd != NULL); |
| |
| /* Is the address of the relocation really within the section? */ |
| if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
| return bfd_reloc_outofrange; |
| |
| if (is_reloc_stack_empty ()) |
| { |
| if (bfd_is_und_section (symbol->section) |
| && (symbol->flags & BSF_WEAK) == 0 |
| && !relocatable) |
| return bfd_reloc_undefined; |
| |
| output_section = symbol->section->output_section; |
| relocation = symbol->value; |
| /* Convert input-section-relative symbol value to absolute. */ |
| if (relocatable) |
| output_base = 0; |
| else |
| output_base = output_section->vma; |
| |
| if ((symbol->name |
| && symbol->section->name |
| && !strcmp (symbol->name, symbol->section->name)) |
| || !relocatable) |
| { |
| relocation += output_base + symbol->section->output_offset; |
| } |
| |
| relocation += reloc_entry->addend; |
| } |
| else |
| { |
| relocation = reloc_stack_pop(); |
| relocation += reloc_entry->addend; |
| } |
| |
| if (relocatable) |
| { |
| /* This output will be relocatable ... like ld -r. */ |
| reloc_entry->address += input_section->output_offset; |
| reloc_entry->addend += symbol->section->output_offset; |
| } |
| else |
| { |
| reloc_entry->addend = 0; |
| } |
| |
| /* Here the variable relocation holds the final address of the |
| symbol we are relocating against, plus any addend. */ |
| x = relocation & 0xFFFF0000; |
| x >>=16; |
| bfd_put_16 (abfd, x, (unsigned char *) data + addr + 2); |
| |
| x = relocation & 0x0000FFFF; |
| bfd_put_16 (abfd, x, (unsigned char *) data + addr); |
| return bfd_reloc_ok; |
| } |
| |
| /* bfin_bfd_reloc handles the blackfin arithmetic relocations. |
| Use this instead of bfd_perform_relocation. */ |
| static bfd_reloc_status_type |
| bfin_bfd_reloc (bfd *abfd, |
| arelent *reloc_entry, |
| asymbol *symbol, |
| PTR data, |
| asection *input_section, |
| bfd *output_bfd, |
| char **error_message ATTRIBUTE_UNUSED) |
| { |
| bfd_vma relocation; |
| bfd_size_type addr = reloc_entry->address; |
| bfd_vma output_base = 0; |
| reloc_howto_type *howto = reloc_entry->howto; |
| asection *output_section; |
| bfd_boolean relocatable = (output_bfd != NULL); |
| |
| /* Is the address of the relocation really within the section? */ |
| if (reloc_entry->address > bfd_get_section_limit (abfd, input_section)) |
| return bfd_reloc_outofrange; |
| |
| if (is_reloc_stack_empty()) |
| { |
| if (bfd_is_und_section (symbol->section) |
| && (symbol->flags & BSF_WEAK) == 0 |
| && !relocatable) |
| return bfd_reloc_undefined; |
| |
| /* Get symbol value. (Common symbols are special.) */ |
| if (bfd_is_com_section (symbol->section)) |
| relocation = 0; |
| else |
| relocation = symbol->value; |
| |
| output_section = symbol->section->output_section; |
| |
| /* Convert input-section-relative symbol value to absolute. */ |
| if (relocatable) |
| output_base = 0; |
| else |
| output_base = output_section->vma; |
| |
| if (!relocatable || !strcmp (symbol->name, symbol->section->name)) |
| relocation += output_base + symbol->section->output_offset; |
| |
| if (!relocatable && !strcmp (symbol->name, symbol->section->name)) |
| { |
| /* Add in supplied addend. */ |
| relocation += reloc_entry->addend; |
| } |
| |
| } |
| else |
| { |
| relocation = reloc_stack_pop(); |
| } |
| |
| /* Here the variable relocation holds the final address of the |
| symbol we are relocating against, plus any addend. */ |
| |
| if (howto->pc_relative == TRUE) |
| { |
| relocation -= input_section->output_section->vma + input_section->output_offset; |
| |
| if (howto->pcrel_offset == TRUE) |
| relocation -= reloc_entry->address; |
| } |
| |
| if (relocatable) |
| { |
| reloc_entry->address += input_section->output_offset; |
| reloc_entry->addend += symbol->section->output_offset; |
| } |
| |
| if (howto->complain_on_overflow != complain_overflow_dont) |
| { |
| bfd_reloc_status_type status; |
| |
| status = bfd_check_overflow (howto->complain_on_overflow, |
| howto->bitsize, |
| howto->rightshift, |
| bfd_arch_bits_per_address(abfd), |
| relocation); |
| if (status != bfd_reloc_ok) |
| return status; |
| } |
| |
| /* If rightshift is 1 and the number odd, return error. */ |
| if (howto->rightshift && (relocation & 0x01)) |
| { |
| fprintf(stderr, "relocation should be even number\n"); |
| return bfd_reloc_overflow; |
| } |
| |
| relocation >>= (bfd_vma) howto->rightshift; |
| |
| /* Shift everything up to where it's going to be used. */ |
| |
| relocation <<= (bfd_vma) howto->bitpos; |
| |
| #define DOIT(x) \ |
| x = ( (x & ~howto->dst_mask) | (relocation & howto->dst_mask)) |
| |
| /* handle 8 and 16 bit relocations here. */ |
| switch (howto->size) |
| { |
| case 0: |
| { |
| char x = bfd_get_8 (abfd, (char *) data + addr); |
| DOIT (x); |
| bfd_put_8 (abfd, x, (unsigned char *) data + addr); |
| } |
| break; |
| |
| case 1: |
| { |
| unsigned short x = bfd_get_16 (abfd, (bfd_byte *) data + addr); |
| DOIT (x); |
| bfd_put_16 (abfd, (bfd_vma) x, (unsigned char *) data + addr); |
| } |
| break; |
| |
| default: |
| return bfd_reloc_other; |
| } |
| |
| return bfd_reloc_ok; |
| } |
| |
| #if 0 |
| static bfd_reloc_status_type bfin_bfd_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| |
| static bfd_reloc_status_type bfin_imm16_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| |
| static bfd_reloc_status_type bfin_pcrel24_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| |
| static bfd_reloc_status_type bfin_pltpc_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| |
| static bfd_reloc_status_type bfin_const_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| |
| static bfd_reloc_status_type bfin_oper_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| |
| static bfd_reloc_status_type bfin_byte4_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| |
| static bfd_reloc_status_type bfin_push_reloc |
| PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
| |
| static bfd_boolean bfin_is_local_label_name |
| PARAMS ((bfd *, const char *)); |
| #endif |
| bfd_boolean bfd_bfin_elf32_create_embedded_relocs |
| PARAMS ((bfd *, struct bfd_link_info *, asection *, asection *, char **)); |
| |
| |
| /* HOWTO Table for blackfin. |
| Blackfin relocations are fairly complicated. |
| Some of the salient features are |
| a. Even numbered offsets. A number of (not all) relocations are |
| even numbered. This means that the rightmost bit is not stored. |
| Needs to right shift by 1 and check to see if value is not odd |
| b. A relocation can be an expression. An expression takes on |
| a variety of relocations arranged in a stack. |
| As a result, we cannot use the standard generic function as special |
| function. We will have our own, which is very similar to the standard |
| generic function except that it understands how to get the value from |
| the relocation stack. . */ |
| |
| #define BFIN_RELOC_MIN 0 |
| #define BFIN_RELOC_MAX 0x13 |
| #define BFIN_GNUEXT_RELOC_MIN 0x40 |
| #define BFIN_GNUEXT_RELOC_MAX 0x43 |
| #define BFIN_ARELOC_MIN 0xE0 |
| #define BFIN_ARELOC_MAX 0xF3 |
| |
| static reloc_howto_type bfin_howto_table [] = |
| { |
| /* This reloc does nothing. . */ |
| HOWTO (R_unused0, /* type. */ |
| 0, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 32, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_bitfield, /* complain_on_overflow. */ |
| bfd_elf_generic_reloc, /* special_function. */ |
| "R_unused0", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel5m2, /* type. */ |
| 1, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long).. */ |
| 4, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_unsigned, /* complain_on_overflow. */ |
| bfin_bfd_reloc, /* special_function. */ |
| "R_pcrel5m2", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x0000000F, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_unused1, /* type. */ |
| 0, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 32, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_bitfield, /* complain_on_overflow. */ |
| bfd_elf_generic_reloc, /* special_function. */ |
| "R_unused1", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel10, /* type. */ |
| 1, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 10, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_bfd_reloc, /* special_function. */ |
| "R_pcrel10", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x000003FF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel12_jump, /* type. */ |
| 1, /* rightshift. */ |
| /* the offset is actually 13 bit |
| aligned on a word boundary so |
| only 12 bits have to be used. |
| Right shift the rightmost bit.. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 12, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_bfd_reloc, /* special_function. */ |
| "R_pcrel12_jump", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x0FFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_rimm16, /* type. */ |
| 0, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 16, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_imm16_reloc, /* special_function. */ |
| "R_rimm16", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x0000FFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_luimm16, /* type. */ |
| 0, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 16, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_imm16_reloc, /* special_function. */ |
| "R_luimm16", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x0000FFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_huimm16, /* type. */ |
| 16, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 16, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_unsigned, /* complain_on_overflow. */ |
| bfin_imm16_reloc, /* special_function. */ |
| "R_huimm16", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x0000FFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel12_jump_s, /* type. */ |
| 1, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 12, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_bfd_reloc, /* special_function. */ |
| "R_pcrel12_jump_s", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x00000FFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel24_jump_x, /* type. */ |
| 1, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 24, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_pcrel24_reloc, /* special_function. */ |
| "R_pcrel24_jump_x", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x00FFFFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel24, /* type. */ |
| 1, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 24, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_pcrel24_reloc, /* special_function. */ |
| "R_pcrel24", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x00FFFFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_unusedb, /* type. */ |
| 0, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 32, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfd_elf_generic_reloc, /* special_function. */ |
| "R_unusedb", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_unusedc, /* type. */ |
| 0, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 32, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfd_elf_generic_reloc, /* special_function. */ |
| "R_unusedc", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel24_jump_l, /* type. */ |
| 1, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 24, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_pcrel24_reloc, /* special_function. */ |
| "R_pcrel24_jump_l", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x00FFFFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel24_call_x, /* type. */ |
| 1, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 24, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_pcrel24_reloc, /* special_function. */ |
| "R_pcrel24_call_x", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x00FFFFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_var_eq_symb, /* type. */ |
| 0, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 32, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_bitfield, /* complain_on_overflow. */ |
| bfin_bfd_reloc, /* special_function. */ |
| "R_var_eq_symb", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_byte_data, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 8, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_unsigned, /* complain_on_overflow. */ |
| bfin_bfd_reloc, /* special_function. */ |
| "R_byte_data", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0xFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_byte2_data, /* type. */ |
| 0, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 16, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_signed, /* complain_on_overflow. */ |
| bfin_bfd_reloc, /* special_function. */ |
| "R_byte2_data", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0xFFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_byte4_data, /* type. */ |
| 0, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 32, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_unsigned, /* complain_on_overflow. */ |
| bfin_byte4_reloc, /* special_function. */ |
| "R_byte4_data", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0xFFFFFFFF, /* dst_mask. */ |
| TRUE), /* pcrel_offset. */ |
| |
| HOWTO (R_pcrel11, /* type. */ |
| 1, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 10, /* bitsize. */ |
| TRUE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_unsigned, /* complain_on_overflow. */ |
| bfin_bfd_reloc, /* special_function. */ |
| "R_pcrel11", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0x000003FF, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| }; |
| |
| static reloc_howto_type bfin_areloc_howto_table [] = |
| { |
| HOWTO (R_push, |
| 0, |
| 2, |
| 0, |
| FALSE, |
| 0, |
| complain_overflow_dont, |
| bfin_push_reloc, |
| "R_expst_push", |
| FALSE, |
| 0, |
| 0, |
| FALSE), |
| |
| HOWTO (R_const, |
| 0, |
| 2, |
| 0, |
| FALSE, |
| 0, |
| complain_overflow_dont, |
| bfin_const_reloc, |
| "R_expst_const", |
| FALSE, |
| 0, |
| 0, |
| FALSE), |
| |
| HOWTO (R_add, |
| 0, |
| 0, |
| 0, |
| FALSE, |
| 0, |
| complain_overflow_dont, |
| bfin_oper_reloc, |
| "R_expst_add", |
| FALSE, |
| 0, |
| 0, |
| FALSE), |
| |
| HOWTO (R_sub, |
| 0, |
| 0, |
| 0, |
| FALSE, |
| 0, |
| complain_overflow_dont, |
| bfin_oper_reloc, |
| "R_expst_sub", |
| FALSE, |
| 0, |
| 0, |
| FALSE), |
| |
| HOWTO (R_mult, |
| 0, |
| 0, |
| 0, |
| FALSE, |
| 0, |
| complain_overflow_dont, |
| bfin_oper_reloc, |
| "R_expst_mult", |
| FALSE, |
| 0, |
| 0, |
| FALSE), |
| |
| HOWTO (R_div, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_div", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_mod, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_mod", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_lshift, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_lshift", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_rshift, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_rshift", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_and, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_and", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_or, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_or", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_xor, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_xor", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_land, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_land", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_lor, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_lor", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_len, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_len", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_neg, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_neg", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_comp, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_comp", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_page, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_page", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_hwpage, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_hwpage", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_addr, /* type. */ |
| 0, /* rightshift. */ |
| 0, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| bfin_oper_reloc, /* special_function. */ |
| "R_expst_addr", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| }; |
| |
| static reloc_howto_type bfin_gnuext_howto_table [] = |
| { |
| HOWTO (R_pltpc, /* type. */ |
| 0, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 16, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_bitfield, /* complain_on_overflow. */ |
| bfin_pltpc_reloc, /* special_function. */ |
| "R_pltpc", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0xffff, /* src_mask. */ |
| 0xffff, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| HOWTO (R_got, /* type. */ |
| 0, /* rightshift. */ |
| 1, /* size (0 = byte, 1 = short, 2 = long). */ |
| 16, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_bitfield, /* complain_on_overflow. */ |
| bfd_elf_generic_reloc, /* special_function. */ |
| "R_got", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0x7fff, /* src_mask. */ |
| 0x7fff, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| /* GNU extension to record C++ vtable hierarchy. */ |
| HOWTO (R_BFIN_GNU_VTINHERIT, /* type. */ |
| 0, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| NULL, /* special_function. */ |
| "R_BFIN_GNU_VTINHERIT", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE), /* pcrel_offset. */ |
| |
| /* GNU extension to record C++ vtable member usage. */ |
| HOWTO (R_BFIN_GNU_VTENTRY, /* type. */ |
| 0, /* rightshift. */ |
| 2, /* size (0 = byte, 1 = short, 2 = long). */ |
| 0, /* bitsize. */ |
| FALSE, /* pc_relative. */ |
| 0, /* bitpos. */ |
| complain_overflow_dont, /* complain_on_overflow. */ |
| _bfd_elf_rel_vtable_reloc_fn, /* special_function. */ |
| "R_BFIN_GNU_VTENTRY", /* name. */ |
| FALSE, /* partial_inplace. */ |
| 0, /* src_mask. */ |
| 0, /* dst_mask. */ |
| FALSE) /* pcrel_offset. */ |
| }; |
| |
| struct bfin_reloc_map |
| { |
| bfd_reloc_code_real_type bfd_reloc_val; |
| unsigned int bfin_reloc_val; |
| }; |
| |
| static const struct bfin_reloc_map bfin_reloc_map [] = |
| { |
| { BFD_RELOC_NONE, R_unused0 }, |
| { BFD_RELOC_BFIN_5_PCREL, R_pcrel5m2 }, |
| { BFD_RELOC_NONE, R_unused1 }, |
| { BFD_RELOC_BFIN_10_PCREL, R_pcrel10 }, |
| { BFD_RELOC_BFIN_12_PCREL_JUMP, R_pcrel12_jump }, |
| { BFD_RELOC_BFIN_16_IMM, R_rimm16 }, |
| { BFD_RELOC_BFIN_16_LOW, R_luimm16 }, |
| { BFD_RELOC_BFIN_16_HIGH, R_huimm16 }, |
| { BFD_RELOC_BFIN_12_PCREL_JUMP_S, R_pcrel12_jump_s }, |
| { BFD_RELOC_24_PCREL, R_pcrel24 }, |
| { BFD_RELOC_24_PCREL, R_pcrel24 }, |
| { BFD_RELOC_BFIN_24_PCREL_JUMP_L, R_pcrel24_jump_l }, |
| { BFD_RELOC_NONE, R_unusedb }, |
| { BFD_RELOC_NONE, R_unusedc }, |
| { BFD_RELOC_BFIN_24_PCREL_CALL_X, R_pcrel24_call_x }, |
| { BFD_RELOC_8, R_byte_data }, |
| { BFD_RELOC_16, R_byte2_data }, |
| { BFD_RELOC_32, R_byte4_data }, |
| { BFD_RELOC_BFIN_11_PCREL, R_pcrel11 }, |
| { BFD_RELOC_BFIN_GOT, R_got }, |
| { BFD_RELOC_BFIN_PLTPC, R_pltpc }, |
| { BFD_RELOC_VTABLE_INHERIT, R_BFIN_GNU_VTINHERIT }, |
| { BFD_RELOC_VTABLE_ENTRY, R_BFIN_GNU_VTENTRY }, |
| { BFD_ARELOC_BFIN_PUSH, R_push }, |
| { BFD_ARELOC_BFIN_CONST, R_const }, |
| { BFD_ARELOC_BFIN_ADD, R_add }, |
| { BFD_ARELOC_BFIN_SUB, R_sub }, |
| { BFD_ARELOC_BFIN_MULT, R_mult }, |
| { BFD_ARELOC_BFIN_DIV, R_div }, |
| { BFD_ARELOC_BFIN_MOD, R_mod }, |
| { BFD_ARELOC_BFIN_LSHIFT, R_lshift }, |
| { BFD_ARELOC_BFIN_RSHIFT, R_rshift }, |
| { BFD_ARELOC_BFIN_AND, R_and }, |
| { BFD_ARELOC_BFIN_OR, R_or }, |
| { BFD_ARELOC_BFIN_XOR, R_xor }, |
| { BFD_ARELOC_BFIN_LAND, R_land }, |
| { BFD_ARELOC_BFIN_LOR, R_lor }, |
| { BFD_ARELOC_BFIN_LEN, R_len }, |
| { BFD_ARELOC_BFIN_NEG, R_neg }, |
| { BFD_ARELOC_BFIN_COMP, R_comp }, |
| { BFD_ARELOC_BFIN_PAGE, R_page }, |
| { BFD_ARELOC_BFIN_HWPAGE, R_hwpage }, |
| { BFD_ARELOC_BFIN_ADDR, R_addr } |
| |
| }; |
| |
| |
| static void |
| bfin_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, |
| arelent *cache_ptr, |
| Elf_Internal_Rela *dst) |
| { |
| unsigned int r_type; |
| |
| r_type = ELF32_R_TYPE (dst->r_info); |
| |
| if (r_type <= BFIN_RELOC_MAX) |
| cache_ptr->howto = &bfin_howto_table [r_type]; |
| |
| else if (r_type >= BFIN_ARELOC_MIN && r_type <= BFIN_ARELOC_MAX) |
| cache_ptr->howto = &bfin_areloc_howto_table [r_type - BFIN_ARELOC_MIN]; |
| |
| else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX) |
| cache_ptr->howto = &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN]; |
| |
| else |
| cache_ptr->howto = (reloc_howto_type *) NULL; |
| |
| } |
| /* Given a BFD reloc type, return the howto. */ |
| static reloc_howto_type * |
| bfin_bfd_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, |
| bfd_reloc_code_real_type code) |
| { |
| unsigned int i; |
| unsigned int r_type = BFIN_RELOC_MIN; |
| |
| for (i = sizeof (bfin_reloc_map) / sizeof (bfin_reloc_map[0]); --i;) |
| if (bfin_reloc_map[i].bfd_reloc_val == code) |
| r_type = bfin_reloc_map[i].bfin_reloc_val; |
| |
| if (r_type <= BFIN_RELOC_MAX && r_type > BFIN_RELOC_MIN) |
| return &bfin_howto_table [r_type]; |
| |
| else if (r_type >= BFIN_ARELOC_MIN && r_type <= BFIN_ARELOC_MAX) |
| return &bfin_areloc_howto_table [r_type - BFIN_ARELOC_MIN]; |
| |
| else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX) |
| return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN]; |
| |
| return (reloc_howto_type *) NULL; |
| |
| } |
| /* Given a bfin relocation type, return the howto. */ |
| static reloc_howto_type * |
| bfin_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, |
| unsigned int r_type) |
| { |
| if (r_type <= BFIN_RELOC_MAX) |
| return &bfin_howto_table [r_type]; |
| |
| else if (r_type >= BFIN_ARELOC_MIN && r_type <= BFIN_ARELOC_MAX) |
| return &bfin_areloc_howto_table [r_type - BFIN_ARELOC_MIN]; |
| |
| else if (r_type >= BFIN_GNUEXT_RELOC_MIN && r_type <= BFIN_GNUEXT_RELOC_MAX) |
| return &bfin_gnuext_howto_table [r_type - BFIN_GNUEXT_RELOC_MIN]; |
| |
| return (reloc_howto_type *) NULL; |
| |
| } |
| |
| /* Return TRUE if the name is a local label. |
| bfin local labels begin with L$. */ |
| static bfd_boolean |
| bfin_is_local_label_name ( |
| bfd *abfd ATTRIBUTE_UNUSED, |
| const char *label) |
| { |
| if (label[0] == 'L' && label[1] == '$' ) |
| return TRUE; |
| |
| return _bfd_elf_is_local_label_name (abfd, label); |
| } |
| |
| |
| /* Look through the relocs for a section during the first phase, and |
| allocate space in the global offset table or procedure linkage |
| table. */ |
| |
| static bfd_boolean |
| bfin_check_relocs (bfd * abfd, |
| struct bfd_link_info *info, |
| asection *sec, |
| const Elf_Internal_Rela *relocs) |
| { |
| bfd *dynobj; |
| Elf_Internal_Shdr *symtab_hdr; |
| struct elf_link_hash_entry **sym_hashes; |
| bfd_signed_vma *local_got_refcounts; |
| const Elf_Internal_Rela *rel; |
| const Elf_Internal_Rela *rel_end; |
| asection *sgot; |
| asection *srelgot; |
| asection *sreloc; |
| if (info->relocatable) |
| return TRUE; |
| |
| dynobj = elf_hash_table (info)->dynobj; |
| symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| sym_hashes = elf_sym_hashes (abfd); |
| local_got_refcounts = elf_local_got_refcounts (abfd); |
| |
| sgot = NULL; |
| srelgot = NULL; |
| sreloc = NULL; |
| |
| rel_end = relocs + sec->reloc_count; |
| for (rel = relocs; rel < rel_end; rel++) |
| { |
| unsigned long r_symndx; |
| struct elf_link_hash_entry *h; |
| |
| r_symndx = ELF32_R_SYM (rel->r_info); |
| if (r_symndx < symtab_hdr->sh_info) |
| h = NULL; |
| else |
| h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| |
| switch (ELF32_R_TYPE (rel->r_info)) |
| { |
| /* This relocation describes the C++ object vtable hierarchy. |
| Reconstruct it for later use during GC. */ |
| case R_BFIN_GNU_VTINHERIT: |
| if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| return FALSE; |
| break; |
| |
| /* This relocation describes which C++ vtable entries |
| are actually used. Record for later use during GC. */ |
| case R_BFIN_GNU_VTENTRY: |
| if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
| return FALSE; |
| break; |
| |
| case R_got: |
| if (h != NULL |
| && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
| break; |
| /* Fall through. */ |
| |
| if (dynobj == NULL) |
| { |
| /* Create the .got section. */ |
| elf_hash_table (info)->dynobj = dynobj = abfd; |
| if (!_bfd_elf_create_got_section (dynobj, info)) |
| return FALSE; |
| } |
| |
| if (sgot == NULL) |
| { |
| sgot = bfd_get_section_by_name (dynobj, ".got"); |
| BFD_ASSERT (sgot != NULL); |
| } |
| |
| if (srelgot == NULL && (h != NULL || info->shared)) |
| { |
| srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
| if (srelgot == NULL) |
| { |
| srelgot = bfd_make_section (dynobj, ".rela.got"); |
| if (srelgot == NULL |
| || !bfd_set_section_flags (dynobj, srelgot, |
| (SEC_ALLOC |
| | SEC_LOAD |
| | SEC_HAS_CONTENTS |
| | SEC_IN_MEMORY |
| | SEC_LINKER_CREATED |
| | SEC_READONLY)) |
| || !bfd_set_section_alignment (dynobj, srelgot, 2)) |
| return FALSE; |
| } |
| } |
| |
| if (h != NULL) |
| { |
| if (h->got.refcount == 0) |
| { |
| /* Make sure this symbol is output as a dynamic symbol. */ |
| if (h->dynindx == -1 && !h->forced_local) |
| { |
| if (!bfd_elf_link_record_dynamic_symbol (info, h)) |
| return FALSE; |
| } |
| |
| /* Allocate space in the .got section. */ |
| sgot->size += 4; |
| /* Allocate relocation space. */ |
| srelgot->size += sizeof (Elf32_External_Rela); |
| } |
| h->got.refcount++; |
| } |
| else |
| { |
| /* This is a global offset table entry for a local symbol. */ |
| if (local_got_refcounts == NULL) |
| { |
| bfd_size_type size; |
| |
| size = symtab_hdr->sh_info; |
| size *= sizeof (bfd_signed_vma); |
| local_got_refcounts = ((bfd_signed_vma *) |
| bfd_zalloc (abfd, size)); |
| if (local_got_refcounts == NULL) |
| return FALSE; |
| elf_local_got_refcounts (abfd) = local_got_refcounts; |
| } |
| if (local_got_refcounts[r_symndx] == 0) |
| { |
| sgot->size += 4; |
| if (info->shared) |
| { |
| /* If we are generating a shared object, we need to |
| output a R_68K_RELATIVE reloc so that the dynamic |
| linker can adjust this GOT entry. */ |
| srelgot->size += sizeof (Elf32_External_Rela); |
| } |
| } |
| local_got_refcounts[r_symndx]++; |
| } |
| break; |
| |
| default: |
| break; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| static enum elf_reloc_type_class |
| elf32_bfin_reloc_type_class (const Elf_Internal_Rela * rela) |
| { |
| switch ((int) ELF32_R_TYPE (rela->r_info)) |
| { |
| default: |
| return reloc_class_normal; |
| } |
| } |
| |
| static bfd_boolean |
| bfin_relocate_section (bfd * output_bfd, |
| struct bfd_link_info *info, |
| bfd * input_bfd, |
| asection * input_section, |
| bfd_byte * contents, |
| Elf_Internal_Rela * relocs, |
| Elf_Internal_Sym * local_syms, |
| asection ** local_sections) |
| { |
| bfd *dynobj; |
| Elf_Internal_Shdr *symtab_hdr; |
| struct elf_link_hash_entry **sym_hashes; |
| bfd_vma *local_got_offsets; |
| asection *sgot; |
| asection *sreloc; |
| Elf_Internal_Rela *rel; |
| Elf_Internal_Rela *relend; |
| int i = 0; |
| |
| if (info->relocatable) |
| return TRUE; |
| |
| dynobj = elf_hash_table (info)->dynobj; |
| symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
| sym_hashes = elf_sym_hashes (input_bfd); |
| local_got_offsets = elf_local_got_offsets (input_bfd); |
| |
| sgot = NULL; |
| sreloc = NULL; |
| |
| rel = relocs; |
| relend = relocs + input_section->reloc_count; |
| for (; rel < relend; rel++, i++) |
| { |
| int r_type; |
| reloc_howto_type *howto; |
| unsigned long r_symndx; |
| struct elf_link_hash_entry *h; |
| Elf_Internal_Sym *sym; |
| asection *sec; |
| bfd_vma relocation = 0; |
| bfd_boolean unresolved_reloc; |
| bfd_reloc_status_type r; |
| bfd_vma address; |
| |
| r_type = ELF32_R_TYPE (rel->r_info); |
| if (r_type < 0 || r_type >= 243) |
| { |
| bfd_set_error (bfd_error_bad_value); |
| return FALSE; |
| } |
| |
| if (r_type == R_BFIN_GNU_VTENTRY |
| || r_type == R_BFIN_GNU_VTINHERIT) |
| continue; |
| |
| howto = bfin_reloc_type_lookup (input_bfd, r_type); |
| if (howto == NULL) |
| { |
| bfd_set_error (bfd_error_bad_value); |
| return FALSE; |
| } |
| r_symndx = ELF32_R_SYM (rel->r_info); |
| |
| h = NULL; |
| sym = NULL; |
| sec = NULL; |
| unresolved_reloc = FALSE; |
| |
| if (r_symndx < symtab_hdr->sh_info) |
| { |
| sym = local_syms + r_symndx; |
| sec = local_sections[r_symndx]; |
| relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| } |
| else |
| { |
| h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| |
| while (h->root.type == bfd_link_hash_indirect |
| || h->root.type == bfd_link_hash_warning) |
| h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| |
| if (! |
| (!strcmp (h->root.root.string, ".__constant") |
| || !strcmp (h->root.root.string, ".__operator"))) |
| { |
| bfd_boolean warned; |
| h = NULL; |
| RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| r_symndx, symtab_hdr, sym_hashes, |
| h, sec, relocation, |
| unresolved_reloc, warned); |
| |
| } |
| } |
| |
| address = rel->r_offset; |
| /* First, get stack relocs out of the way. */ |
| switch (r_type) |
| { |
| case R_push: |
| reloc_stack_push (relocation + rel->r_addend); |
| r = bfd_reloc_ok; |
| goto done_reloc; |
| case R_const: |
| reloc_stack_push (rel->r_addend); |
| r = bfd_reloc_ok; |
| goto done_reloc; |
| case R_add: |
| case R_sub: |
| case R_mult: |
| case R_div: |
| case R_mod: |
| case R_lshift: |
| case R_rshift: |
| case R_neg: |
| case R_and: |
| case R_or: |
| case R_xor: |
| case R_land: |
| case R_lor: |
| case R_comp: |
| case R_page: |
| case R_hwpage: |
| reloc_stack_operate (r_type); |
| r = bfd_reloc_ok; |
| goto done_reloc; |
| |
| default: |
| if (!is_reloc_stack_empty()) |
| relocation = reloc_stack_pop (); |
| break; |
| } |
| |
| /* Then, process normally. */ |
| switch (r_type) |
| { |
| case R_BFIN_GNU_VTINHERIT: |
| case R_BFIN_GNU_VTENTRY: |
| return bfd_reloc_ok; |
| |
| case R_got: |
| /* Relocation is to the address of the entry for this symbol |
| in the global offset table. */ |
| if (h != NULL |
| && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
| goto do_default; |
| /* Fall through. */ |
| /* Relocation is the offset of the entry for this symbol in |
| the global offset table. */ |
| |
| { |
| bfd_vma off; |
| |
| if (sgot == NULL) |
| { |
| sgot = bfd_get_section_by_name (dynobj, ".got"); |
| BFD_ASSERT (sgot != NULL); |
| } |
| |
| if (h != NULL) |
| { |
| bfd_boolean dyn; |
| |
| off = h->got.offset; |
| BFD_ASSERT (off != (bfd_vma) - 1); |
| dyn = elf_hash_table (info)->dynamic_sections_created; |
| |
| if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
| || (info->shared |
| && (info->symbolic |
| || h->dynindx == -1 |
| || h->forced_local) |
| && h->def_regular)) |
| { |
| /* This is actually a static link, or it is a |
| -Bsymbolic link and the symbol is defined |
| locally, or the symbol was forced to be local |
| because of a version file.. We must initialize |
| this entry in the global offset table. Since |
| the offset must always be a multiple of 4, we |
| use the least significant bit to record whether |
| we have initialized it already. |
| |
| When doing a dynamic link, we create a .rela.got |
| relocation entry to initialize the value. This |
| is done in the finish_dynamic_symbol routine. */ |
| if ((off & 1) != 0) |
| off &= ~1; |
| else |
| { |
| bfd_put_32 (output_bfd, relocation, |
| sgot->contents + off); |
| h->got.offset |= 1; |
| } |
| } |
| else |
| unresolved_reloc = FALSE; |
| } |
| else |
| { |
| BFD_ASSERT (local_got_offsets != NULL); |
| off = local_got_offsets[r_symndx]; |
| BFD_ASSERT (off != (bfd_vma) - 1); |
| |
| /* The offset must always be a multiple of 4. We use |
| the least significant bit to record whether we have |
| already generated the necessary reloc. */ |
| if ((off & 1) != 0) |
| off &= ~1; |
| else |
| { |
| bfd_put_32 (output_bfd, relocation, sgot->contents + off); |
| |
| if (info->shared) |
| { |
| asection *s; |
| Elf_Internal_Rela outrel; |
| bfd_byte *loc; |
| |
| s = bfd_get_section_by_name (dynobj, ".rela.got"); |
| BFD_ASSERT (s != NULL); |
| |
| outrel.r_offset = (sgot->output_section->vma |
| + sgot->output_offset + off); |
| outrel.r_info = |
| ELF32_R_INFO (0, R_pcrel24); |
| outrel.r_addend = relocation; |
| loc = s->contents; |
| loc += |
| s->reloc_count++ * sizeof (Elf32_External_Rela); |
| bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
| } |
| |
| local_got_offsets[r_symndx] |= 1; |
| } |
| } |
| |
| relocation = sgot->output_offset + off; |
| rel->r_addend = 0; |
| /* bfin : preg = [preg + 17bitdiv4offset] relocation is div by 4. */ |
| relocation /= 4; |
| } |
| goto do_default; |
| |
| case R_pcrel24: |
| case R_pcrel24_jump_l: |
| { |
| bfd_vma x; |
| |
| relocation += rel->r_addend; |
| |
| /* Perform usual pc-relative correction. */ |
| relocation -= input_section->output_section->vma + input_section->output_offset; |
| relocation -= address; |
| |
| /* We are getting reloc_entry->address 2 byte off from |
| the start of instruction. Assuming absolute postion |
| of the reloc data. But, following code had been written assuming |
| reloc address is starting at begining of instruction. |
| To compensate that I have increased the value of |
| relocation by 1 (effectively 2) and used the addr -2 instead of addr. */ |
| |
| relocation += 2; |
| address -= 2; |
| |
| relocation >>= 1; |
| |
| x = bfd_get_16 (input_bfd, contents + address); |
| x = (x & 0xff00) | ((relocation >> 16) & 0xff); |
| bfd_put_16 (input_bfd, x, contents + address); |
| |
| x = bfd_get_16 (input_bfd, contents + address + 2); |
| x = relocation & 0xFFFF; |
| bfd_put_16 (input_bfd, x, contents + address + 2); |
| r = bfd_reloc_ok; |
| } |
| break; |
| |
| default: |
| do_default: |
| r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
| contents, address, |
| relocation, rel->r_addend); |
| |
| break; |
| } |
| |
| done_reloc: |
| /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| because such sections are not SEC_ALLOC and thus ld.so will |
| not process them. */ |
| if (unresolved_reloc |
| && !((input_section->flags & SEC_DEBUGGING) != 0 && h->def_dynamic)) |
| { |
| (*_bfd_error_handler) |
| (_("%B(%A+0x%lx): unresolvable relocation against symbol `%s'"), |
| input_bfd, |
| input_section, (long) rel->r_offset, h->root.root.string); |
| return FALSE; |
| } |
| |
| if (r != bfd_reloc_ok) |
| { |
| const char *name; |
| |
| if (h != NULL) |
| name = h->root.root.string; |
| else |
| { |
| name = bfd_elf_string_from_elf_section (input_bfd, |
| symtab_hdr->sh_link, |
| sym->st_name); |
| if (name == NULL) |
| return FALSE; |
| if (*name == '\0') |
| name = bfd_section_name (input_bfd, sec); |
| } |
| |
| if (r == bfd_reloc_overflow) |
| { |
| if (!(info->callbacks->reloc_overflow |
| (info, (h ? &h->root : NULL), name, howto->name, |
| (bfd_vma) 0, input_bfd, input_section, rel->r_offset))) |
| return FALSE; |
| } |
| else |
| { |
| (*_bfd_error_handler) |
| (_("%B(%A+0x%lx): reloc against `%s': error %d"), |
| input_bfd, input_section, |
| (long) rel->r_offset, name, (int) r); |
| return FALSE; |
| } |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| static asection * |
| bfin_gc_mark_hook (asection * sec, |
| struct bfd_link_info *info ATTRIBUTE_UNUSED, |
| Elf_Internal_Rela * rel, |
| struct elf_link_hash_entry *h, |
| Elf_Internal_Sym * sym) |
| { |
| if (h != NULL) |
| { |
| switch (ELF32_R_TYPE (rel->r_info)) |
| { |
| |
| case R_BFIN_GNU_VTINHERIT: |
| case R_BFIN_GNU_VTENTRY: |
| break; |
| |
| default: |
| switch (h->root.type) |
| { |
| default: |
| break; |
| |
| case bfd_link_hash_defined: |
| case bfd_link_hash_defweak: |
| return h->root.u.def.section; |
| |
| case bfd_link_hash_common: |
| return h->root.u.c.p->section; |
| } |
| } |
| } |
| else |
| return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
| |
| return NULL; |
| } |
| |
| |
| /* Update the got entry reference counts for the section being removed. */ |
| |
| static bfd_boolean |
| bfin_gc_sweep_hook (bfd * abfd, |
| struct bfd_link_info *info, |
| asection * sec, |
| const Elf_Internal_Rela * relocs) |
| { |
| Elf_Internal_Shdr *symtab_hdr; |
| struct elf_link_hash_entry **sym_hashes; |
| bfd_signed_vma *local_got_refcounts; |
| const Elf_Internal_Rela *rel, *relend; |
| bfd *dynobj; |
| asection *sgot; |
| asection *srelgot; |
| |
| dynobj = elf_hash_table (info)->dynobj; |
| if (dynobj == NULL) |
| return TRUE; |
| |
| symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| sym_hashes = elf_sym_hashes (abfd); |
| local_got_refcounts = elf_local_got_refcounts (abfd); |
| |
| sgot = bfd_get_section_by_name (dynobj, ".got"); |
| srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); |
| |
| relend = relocs + sec->reloc_count; |
| for (rel = relocs; rel < relend; rel++) |
| { |
| unsigned long r_symndx; |
| struct elf_link_hash_entry *h; |
| |
| switch (ELF32_R_TYPE (rel->r_info)) |
| { |
| case R_got: |
| r_symndx = ELF32_R_SYM (rel->r_info); |
| if (r_symndx >= symtab_hdr->sh_info) |
| { |
| h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| if (h->got.refcount > 0) |
| { |
| --h->got.refcount; |
| if (h->got.refcount == 0) |
| { |
| /* We don't need the .got entry any more. */ |
| sgot->size -= 4; |
| srelgot->size -= sizeof (Elf32_External_Rela); |
| } |
| } |
| } |
| else if (local_got_refcounts != NULL) |
| { |
| if (local_got_refcounts[r_symndx] > 0) |
| { |
| --local_got_refcounts[r_symndx]; |
| if (local_got_refcounts[r_symndx] == 0) |
| { |
| /* We don't need the .got entry any more. */ |
| sgot->size -= 4; |
| if (info->shared) |
| srelgot->size -= sizeof (Elf32_External_Rela); |
| } |
| } |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| |
| /* Merge backend specific data from an object file to the output |
| object file when linking. */ |
| static bfd_boolean |
| elf32_bfin_merge_private_bfd_data (bfd * ibfd, bfd * obfd) |
| { |
| flagword out_flags; |
| flagword in_flags; |
| |
| if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour |
| || bfd_get_flavour (obfd) != bfd_target_elf_flavour) |
| return TRUE; |
| |
| in_flags = elf_elfheader (ibfd)->e_flags; |
| out_flags = elf_elfheader (obfd)->e_flags; |
| |
| if (!elf_flags_init (obfd)) |
| { |
| elf_flags_init (obfd) = TRUE; |
| elf_elfheader (obfd)->e_flags = in_flags; |
| } |
| |
| return TRUE; |
| } |
| |
| |
| static bfd_boolean |
| elf32_bfin_set_private_flags (bfd * abfd, flagword flags) |
| { |
| elf_elfheader (abfd)->e_flags = flags; |
| elf_flags_init (abfd) = TRUE; |
| return TRUE; |
| } |
| |
| |
| /* Display the flags field. */ |
| static bfd_boolean |
| elf32_bfin_print_private_bfd_data (bfd * abfd, PTR ptr) |
| { |
| FILE *file = (FILE *) ptr; |
| |
| BFD_ASSERT (abfd != NULL && ptr != NULL); |
| |
| /* Print normal ELF private data. */ |
| _bfd_elf_print_private_bfd_data (abfd, ptr); |
| |
| /* Ignore init flag - it may not be set, despite the flags field |
| containing valid data. */ |
| |
| /* xgettext:c-format */ |
| fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); |
| |
| fputc ('\n', file); |
| |
| return TRUE; |
| } |
| |
| /* bfin ELF linker hash entry. */ |
| |
| struct bfin_link_hash_entry |
| { |
| struct elf_link_hash_entry root; |
| |
| /* Number of PC relative relocs copied for this symbol. */ |
| struct bfin_pcrel_relocs_copied *pcrel_relocs_copied; |
| }; |
| |
| /* bfin ELF linker hash table. */ |
| |
| struct bfin_link_hash_table |
| { |
| struct elf_link_hash_table root; |
| |
| /* Small local sym to section mapping cache. */ |
| struct sym_sec_cache sym_sec; |
| }; |
| |
| #define bfin_hash_entry(ent) ((struct bfin_link_hash_entry *) (ent)) |
| |
| static struct bfd_hash_entry * |
| bfin_link_hash_newfunc (struct bfd_hash_entry *entry, |
| struct bfd_hash_table *table, const char *string) |
| { |
| struct bfd_hash_entry *ret = entry; |
| |
| /* Allocate the structure if it has not already been allocated by a |
| subclass. */ |
| if (ret == NULL) |
| ret = bfd_hash_allocate (table, sizeof (struct bfin_link_hash_entry)); |
| if (ret == NULL) |
| return ret; |
| |
| /* Call the allocation method of the superclass. */ |
| ret = _bfd_elf_link_hash_newfunc (ret, table, string); |
| if (ret != NULL) |
| bfin_hash_entry (ret)->pcrel_relocs_copied = NULL; |
| |
| return ret; |
| } |
| |
| /* Create an bfin ELF linker hash table. */ |
| |
| static struct bfd_link_hash_table * |
| bfin_link_hash_table_create (bfd * abfd) |
| { |
| struct bfin_link_hash_table *ret; |
| bfd_size_type amt = sizeof (struct bfin_link_hash_table); |
| |
| ret = (struct bfin_link_hash_table *) bfd_malloc (amt); |
| if (ret == (struct bfin_link_hash_table *) NULL) |
| return NULL; |
| |
| if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
| bfin_link_hash_newfunc)) |
| { |
| free (ret); |
| return NULL; |
| } |
| |
| ret->sym_sec.abfd = NULL; |
| |
| return &ret->root.root; |
| } |
| |
| /* The size in bytes of an entry in the procedure linkage table. */ |
| |
| /* Finish up the dynamic sections. */ |
| |
| static bfd_boolean |
| bfin_finish_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED, |
| struct bfd_link_info *info) |
| { |
| bfd *dynobj; |
| asection *sdyn; |
| |
| dynobj = elf_hash_table (info)->dynobj; |
| |
| sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
| |
| if (elf_hash_table (info)->dynamic_sections_created) |
| { |
| Elf32_External_Dyn *dyncon, *dynconend; |
| |
| BFD_ASSERT (sdyn != NULL); |
| |
| dyncon = (Elf32_External_Dyn *) sdyn->contents; |
| dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
| for (; dyncon < dynconend; dyncon++) |
| { |
| Elf_Internal_Dyn dyn; |
| |
| bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
| |
| } |
| |
| } |
| return TRUE; |
| } |
| |
| /* Finish up dynamic symbol handling. We set the contents of various |
| dynamic sections here. */ |
| |
| static bfd_boolean |
| bfin_finish_dynamic_symbol (bfd * output_bfd, |
| struct bfd_link_info *info, |
| struct elf_link_hash_entry *h, |
| Elf_Internal_Sym * sym) |
| { |
| bfd *dynobj; |
| |
| dynobj = elf_hash_table (info)->dynobj; |
| |
| if (h->got.offset != (bfd_vma) - 1) |
| { |
| asection *sgot; |
| asection *srela; |
| Elf_Internal_Rela rela; |
| bfd_byte *loc; |
| |
| /* This symbol has an entry in the global offset table. |
| Set it up. */ |
| |
| sgot = bfd_get_section_by_name (dynobj, ".got"); |
| srela = bfd_get_section_by_name (dynobj, ".rela.got"); |
| BFD_ASSERT (sgot != NULL && srela != NULL); |
| |
| rela.r_offset = (sgot->output_section->vma |
| + sgot->output_offset |
| + (h->got.offset & ~(bfd_vma) 1)); |
| |
| /* If this is a -Bsymbolic link, and the symbol is defined |
| locally, we just want to emit a RELATIVE reloc. Likewise if |
| the symbol was forced to be local because of a version file. |
| The entry in the global offset table will already have been |
| initialized in the relocate_section function. */ |
| if (info->shared |
| && (info->symbolic |
| || h->dynindx == -1 || h->forced_local) && h->def_regular) |
| { |
| fprintf(stderr, "*** check this relocation %s\n", __FUNCTION__); |
| rela.r_info = ELF32_R_INFO (0, R_pcrel24); |
| rela.r_addend = bfd_get_signed_32 (output_bfd, |
| (sgot->contents |
| + |
| (h->got. |
| offset & ~(bfd_vma) 1))); |
| } |
| else |
| { |
| bfd_put_32 (output_bfd, (bfd_vma) 0, |
| sgot->contents + (h->got.offset & ~(bfd_vma) 1)); |
| rela.r_info = ELF32_R_INFO (h->dynindx, R_got); |
| rela.r_addend = 0; |
| } |
| |
| loc = srela->contents; |
| loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); |
| bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
| } |
| |
| if (h->needs_copy) |
| { |
| BFD_ASSERT (0); |
| } |
| /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ |
| if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
| || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) |
| sym->st_shndx = SHN_ABS; |
| |
| return TRUE; |
| } |
| |
| /* Adjust a symbol defined by a dynamic object and referenced by a |
| regular object. The current definition is in some section of the |
| dynamic object, but we're not including those sections. We have to |
| change the definition to something the rest of the link can |
| understand. */ |
| |
| static bfd_boolean |
| bfin_adjust_dynamic_symbol (struct bfd_link_info *info, |
| struct elf_link_hash_entry *h) |
| { |
| bfd *dynobj; |
| asection *s; |
| unsigned int power_of_two; |
| |
| dynobj = elf_hash_table (info)->dynobj; |
| |
| /* Make sure we know what is going on here. */ |
| BFD_ASSERT (dynobj != NULL |
| && (h->needs_plt |
| || h->u.weakdef != NULL |
| || (h->def_dynamic && h->ref_regular && !h->def_regular))); |
| |
| /* If this is a function, put it in the procedure linkage table. We |
| will fill in the contents of the procedure linkage table later, |
| when we know the address of the .got section. */ |
| if (h->type == STT_FUNC || h->needs_plt) |
| { |
| BFD_ASSERT(0); |
| } |
| |
| /* If this is a weak symbol, and there is a real definition, the |
| processor independent code will have arranged for us to see the |
| real definition first, and we can just use the same value. */ |
| if (h->u.weakdef != NULL) |
| { |
| BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| || h->u.weakdef->root.type == bfd_link_hash_defweak); |
| h->root.u.def.section = h->u.weakdef->root.u.def.section; |
| h->root.u.def.value = h->u.weakdef->root.u.def.value; |
| return TRUE; |
| } |
| |
| /* This is a reference to a symbol defined by a dynamic object which |
| is not a function. */ |
| |
| /* If we are creating a shared library, we must presume that the |
| only references to the symbol are via the global offset table. |
| For such cases we need not do anything here; the relocations will |
| be handled correctly by relocate_section. */ |
| if (info->shared) |
| return TRUE; |
| |
| /* We must allocate the symbol in our .dynbss section, which will |
| become part of the .bss section of the executable. There will be |
| an entry for this symbol in the .dynsym section. The dynamic |
| object will contain position independent code, so all references |
| from the dynamic object to this symbol will go through the global |
| offset table. The dynamic linker will use the .dynsym entry to |
| determine the address it must put in the global offset table, so |
| both the dynamic object and the regular object will refer to the |
| same memory location for the variable. */ |
| |
| s = bfd_get_section_by_name (dynobj, ".dynbss"); |
| BFD_ASSERT (s != NULL); |
| |
| /* We must generate a R_68K_COPY reloc to tell the dynamic linker to |
| copy the initial value out of the dynamic object and into the |
| runtime process image. We need to remember the offset into the |
| .rela.bss section we are going to use. */ |
| if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
| { |
| asection *srel; |
| |
| srel = bfd_get_section_by_name (dynobj, ".rela.bss"); |
| BFD_ASSERT (srel != NULL); |
| srel->size += sizeof (Elf32_External_Rela); |
| h->needs_copy = 1; |
| } |
| |
| /* We need to figure out the alignment required for this symbol. I |
| have no idea how ELF linkers handle this. */ |
| power_of_two = bfd_log2 (h->size); |
| if (power_of_two > 3) |
| power_of_two = 3; |
| |
| /* Apply the required alignment. */ |
| s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
| if (power_of_two > bfd_get_section_alignment (dynobj, s)) |
| { |
| if (!bfd_set_section_alignment (dynobj, s, power_of_two)) |
| return FALSE; |
| } |
| |
| /* Define the symbol as being at this point in the section. */ |
| h->root.u.def.section = s; |
| h->root.u.def.value = s->size; |
| |
| /* Increment the section size to make room for the symbol. */ |
| s->size += h->size; |
| |
| return TRUE; |
| } |
| |
| /* The bfin linker needs to keep track of the number of relocs that it |
| decides to copy in check_relocs for each symbol. This is so that it |
| can discard PC relative relocs if it doesn't need them when linking |
| with -Bsymbolic. We store the information in a field extending the |
| regular ELF linker hash table. */ |
| |
| /* This structure keeps track of the number of PC relative relocs we have |
| copied for a given symbol. */ |
| |
| struct bfin_pcrel_relocs_copied |
| { |
| /* Next section. */ |
| struct bfin_pcrel_relocs_copied *next; |
| /* A section in dynobj. */ |
| asection *section; |
| /* Number of relocs copied in this section. */ |
| bfd_size_type count; |
| }; |
| |
| /* This function is called via elf_link_hash_traverse if we are |
| creating a shared object. In the -Bsymbolic case it discards the |
| space allocated to copy PC relative relocs against symbols which |
| are defined in regular objects. For the normal shared case, it |
| discards space for pc-relative relocs that have become local due to |
| symbol visibility changes. We allocated space for them in the |
| check_relocs routine, but we won't fill them in in the |
| relocate_section routine. |
| |
| We also check whether any of the remaining relocations apply |
| against a readonly section, and set the DF_TEXTREL flag in this |
| case. */ |
| |
| static bfd_boolean |
| bfin_discard_copies (struct elf_link_hash_entry *h, PTR inf) |
| { |
| struct bfd_link_info *info = (struct bfd_link_info *) inf; |
| struct bfin_pcrel_relocs_copied *s; |
| |
| if (h->root.type == bfd_link_hash_warning) |
| h = (struct elf_link_hash_entry *) h->root.u.i.link; |
| |
| if (!h->def_regular || (!info->symbolic && !h->forced_local)) |
| { |
| if ((info->flags & DF_TEXTREL) == 0) |
| { |
| /* Look for relocations against read-only sections. */ |
| for (s = bfin_hash_entry (h)->pcrel_relocs_copied; |
| s != NULL; s = s->next) |
| if ((s->section->flags & SEC_READONLY) != 0) |
| { |
| info->flags |= DF_TEXTREL; |
| break; |
| } |
| } |
| |
| return TRUE; |
| } |
| |
| for (s = bfin_hash_entry (h)->pcrel_relocs_copied; |
| s != NULL; s = s->next) |
| s->section->size -= s->count * sizeof (Elf32_External_Rela); |
| |
| return TRUE; |
| } |
| |
| /* Set the sizes of the dynamic sections. */ |
| #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" |
| |
| static bfd_boolean |
| bfin_size_dynamic_sections (bfd * output_bfd ATTRIBUTE_UNUSED, |
| struct bfd_link_info *info) |
| { |
| bfd *dynobj; |
| asection *s; |
| bfd_boolean relocs; |
| |
| dynobj = elf_hash_table (info)->dynobj; |
| BFD_ASSERT (dynobj != NULL); |
| |
| if (elf_hash_table (info)->dynamic_sections_created) |
| { |
| /* Set the contents of the .interp section to the interpreter. */ |
| if (info->executable) |
| { |
| s = bfd_get_section_by_name (dynobj, ".interp"); |
| BFD_ASSERT (s != NULL); |
| s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| } |
| } |
| else |
| { |
| /* We may have created entries in the .rela.got section. |
| However, if we are not creating the dynamic sections, we will |
| not actually use these entries. Reset the size of .rela.got, |
| which will cause it to get stripped from the output file |
| below. */ |
| s = bfd_get_section_by_name (dynobj, ".rela.got"); |
| if (s != NULL) |
| s->size = 0; |
| } |
| |
| /* If this is a -Bsymbolic shared link, then we need to discard all |
| PC relative relocs against symbols defined in a regular object. |
| For the normal shared case we discard the PC relative relocs |
| against symbols that have become local due to visibility changes. |
| We allocated space for them in the check_relocs routine, but we |
| will not fill them in in the relocate_section routine. */ |
| if (info->shared) |
| elf_link_hash_traverse (elf_hash_table (info), |
| bfin_discard_copies, (PTR) info); |
| |
| /* The check_relocs and adjust_dynamic_symbol entry points have |
| determined the sizes of the various dynamic sections. Allocate |
| memory for them. */ |
| relocs = FALSE; |
| for (s = dynobj->sections; s != NULL; s = s->next) |
| { |
| const char *name; |
| bfd_boolean strip; |
| |
| if ((s->flags & SEC_LINKER_CREATED) == 0) |
| continue; |
| |
| /* It's OK to base decisions on the section name, because none |
| of the dynobj section names depend upon the input files. */ |
| name = bfd_get_section_name (dynobj, s); |
| |
| strip = FALSE; |
| |
| if (strncmp (name, ".rela", 5) == 0) |
| { |
| if (s->size == 0) |
| { |
| /* If we don't need this section, strip it from the |
| output file. This is mostly to handle .rela.bss and |
| .rela.plt. We must create both sections in |
| create_dynamic_sections, because they must be created |
| before the linker maps input sections to output |
| sections. The linker does that before |
| adjust_dynamic_symbol is called, and it is that |
| function which decides whether anything needs to go |
| into these sections. */ |
| strip = TRUE; |
| } |
| else |
| { |
| relocs = TRUE; |
| |
| /* We use the reloc_count field as a counter if we need |
| to copy relocs into the output file. */ |
| s->reloc_count = 0; |
| } |
| } |
| else if (strncmp (name, ".got", 4) != 0) |
| { |
| /* It's not one of our sections, so don't allocate space. */ |
| continue; |
| } |
| |
| if (strip) |
| { |
| s->flags |= SEC_EXCLUDE; |
| continue; |
| } |
| |
| /* Allocate memory for the section contents. */ |
| /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. |
| Unused entries should be reclaimed before the section's contents |
| are written out, but at the moment this does not happen. Thus in |
| order to prevent writing out garbage, we initialise the section's |
| contents to zero. */ |
| s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
| if (s->contents == NULL && s->size != 0) |
| return FALSE; |
| } |
| |
| if (elf_hash_table (info)->dynamic_sections_created) |
| { |
| /* Add some entries to the .dynamic section. We fill in the |
| values later, in bfin_finish_dynamic_sections, but we |
| must add the entries now so that we get the correct size for |
| the .dynamic section. The DT_DEBUG entry is filled in by the |
| dynamic linker and used by the debugger. */ |
| #define add_dynamic_entry(TAG, VAL) \ |
| _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| |
| if (!info->shared) |
| { |
| if (!add_dynamic_entry (DT_DEBUG, 0)) |
| return FALSE; |
| } |
| |
| |
| if (relocs) |
| { |
| if (!add_dynamic_entry (DT_RELA, 0) |
| || !add_dynamic_entry (DT_RELASZ, 0) |
| || !add_dynamic_entry (DT_RELAENT, |
| sizeof (Elf32_External_Rela))) |
| return FALSE; |
| } |
| |
| if ((info->flags & DF_TEXTREL) != 0) |
| { |
| if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| return FALSE; |
| } |
| } |
| #undef add_dynamic_entry |
| |
| return TRUE; |
| } |
| |
| /* Given a .data section and a .emreloc in-memory section, store |
| relocation information into the .emreloc section which can be |
| used at runtime to relocate the section. This is called by the |
| linker when the --embedded-relocs switch is used. This is called |
| after the add_symbols entry point has been called for all the |
| objects, and before the final_link entry point is called. */ |
| |
| bfd_boolean |
| bfd_bfin_elf32_create_embedded_relocs ( |
| bfd *abfd, |
| struct bfd_link_info *info, |
| asection *datasec, |
| asection *relsec, |
| char **errmsg) |
| { |
| Elf_Internal_Shdr *symtab_hdr; |
| Elf_Internal_Sym *isymbuf = NULL; |
| Elf_Internal_Rela *internal_relocs = NULL; |
| Elf_Internal_Rela *irel, *irelend; |
| bfd_byte *p; |
| bfd_size_type amt; |
| |
| BFD_ASSERT (! info->relocatable); |
| |
| *errmsg = NULL; |
| |
| if (datasec->reloc_count == 0) |
| return TRUE; |
| |
| symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
| |
| /* Get a copy of the native relocations. */ |
| internal_relocs = (_bfd_elf_link_read_relocs |
| (abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL, |
| info->keep_memory)); |
| if (internal_relocs == NULL) |
| goto error_return; |
| |
| amt = (bfd_size_type) datasec->reloc_count * 12; |
| relsec->contents = (bfd_byte *) bfd_alloc (abfd, amt); |
| if (relsec->contents == NULL) |
| goto error_return; |
| |
| p = relsec->contents; |
| |
| irelend = internal_relocs + datasec->reloc_count; |
| for (irel = internal_relocs; irel < irelend; irel++, p += 12) |
| { |
| asection *targetsec; |
| |
| /* We are going to write a four byte longword into the runtime |
| reloc section. The longword will be the address in the data |
| section which must be relocated. It is followed by the name |
| of the target section NUL-padded or truncated to 8 |
| characters. */ |
| |
| /* We can only relocate absolute longword relocs at run time. */ |
| if (ELF32_R_TYPE (irel->r_info) != (int) R_byte4_data) |
| { |
| *errmsg = _("unsupported reloc type"); |
| bfd_set_error (bfd_error_bad_value); |
| goto error_return; |
| } |
| |
| /* Get the target section referred to by the reloc. */ |
| if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
| { |
| /* A local symbol. */ |
| Elf_Internal_Sym *isym; |
| |
| /* Read this BFD's local symbols if we haven't done so already. */ |
| if (isymbuf == NULL) |
| { |
| isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
| if (isymbuf == NULL) |
| isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, |
| symtab_hdr->sh_info, 0, |
| NULL, NULL, NULL); |
| if (isymbuf == NULL) |
| goto error_return; |
| } |
| |
| isym = isymbuf + ELF32_R_SYM (irel->r_info); |
| targetsec = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| } |
| else |
| { |
| unsigned long indx; |
| struct elf_link_hash_entry *h; |
| |
| /* An external symbol. */ |
| indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; |
| h = elf_sym_hashes (abfd)[indx]; |
| BFD_ASSERT (h != NULL); |
| if (h->root.type == bfd_link_hash_defined |
| || h->root.type == bfd_link_hash_defweak) |
| targetsec = h->root.u.def.section; |
| else |
| targetsec = NULL; |
| } |
| |
| bfd_put_32 (abfd, irel->r_offset + datasec->output_offset, p); |
| memset (p + 4, 0, 8); |
| if (targetsec != NULL) |
| strncpy ((char *) p + 4, targetsec->output_section->name, 8); |
| } |
| |
| if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf) |
| free (isymbuf); |
| if (internal_relocs != NULL |
| && elf_section_data (datasec)->relocs != internal_relocs) |
| free (internal_relocs); |
| return TRUE; |
| |
| error_return: |
| if (isymbuf != NULL && symtab_hdr->contents != (unsigned char *) isymbuf) |
| free (isymbuf); |
| if (internal_relocs != NULL |
| && elf_section_data (datasec)->relocs != internal_relocs) |
| free (internal_relocs); |
| return FALSE; |
| } |
| |
| #define TARGET_LITTLE_SYM bfd_elf32_bfin_vec |
| #define TARGET_LITTLE_NAME "elf32-bfin" |
| #define ELF_ARCH bfd_arch_bfin |
| #define ELF_MACHINE_CODE EM_BLACKFIN |
| #define ELF_MAXPAGESIZE 0x1000 |
| #define elf_symbol_leading_char '_' |
| |
| #define bfd_elf32_bfd_reloc_type_lookup bfin_bfd_reloc_type_lookup |
| #define elf_info_to_howto bfin_info_to_howto |
| #define elf_info_to_howto_rel 0 |
| |
| #define bfd_elf32_bfd_is_local_label_name \ |
| bfin_is_local_label_name |
| #define bfin_hash_table(p) \ |
| ((struct bfin_link_hash_table *) (p)->hash) |
| |
| |
| |
| #define elf_backend_create_dynamic_sections \ |
| _bfd_elf_create_dynamic_sections |
| #define bfd_elf32_bfd_link_hash_table_create \ |
| bfin_link_hash_table_create |
| #define bfd_elf32_bfd_final_link bfd_elf_gc_common_final_link |
| |
| #define elf_backend_check_relocs bfin_check_relocs |
| #define elf_backend_adjust_dynamic_symbol \ |
| bfin_adjust_dynamic_symbol |
| #define elf_backend_size_dynamic_sections \ |
| bfin_size_dynamic_sections |
| #define elf_backend_relocate_section bfin_relocate_section |
| #define elf_backend_finish_dynamic_symbol \ |
| bfin_finish_dynamic_symbol |
| #define elf_backend_finish_dynamic_sections \ |
| bfin_finish_dynamic_sections |
| #define elf_backend_gc_mark_hook bfin_gc_mark_hook |
| #define elf_backend_gc_sweep_hook bfin_gc_sweep_hook |
| #define bfd_elf32_bfd_merge_private_bfd_data \ |
| elf32_bfin_merge_private_bfd_data |
| #define bfd_elf32_bfd_set_private_flags \ |
| elf32_bfin_set_private_flags |
| #define bfd_elf32_bfd_print_private_bfd_data \ |
| elf32_bfin_print_private_bfd_data |
| #define elf_backend_reloc_type_class elf32_bfin_reloc_type_class |
| #define elf_backend_can_gc_sections 1 |
| #define elf_backend_can_refcount 1 |
| #define elf_backend_want_got_plt 0 |
| #define elf_backend_plt_readonly 1 |
| #define elf_backend_want_plt_sym 0 |
| #define elf_backend_got_header_size 12 |
| #define elf_backend_rela_normal 1 |
| |
| |
| #include "elf32-target.h" |