binutils/
* readelf.c (debug_apply_rela_addends): New function, extracted from.. (display_debug_info): ..here. (display_debug_frames): Call debug_apply_rela_addends. Don't do DW_EH_PE_pcrel adjustment for ET_REL. gas/testsuite/ * gas/cfi/cfi-alpha-1.d: Adjust for readelf fix. * gas/cfi/cfi-alpha-3.d: Likewise. * gas/cfi/cfi-i386.d: Likewise. * gas/cfi/cfi-m68k.d: Likewise. * gas/cfi/cfi-ppc-1.d: Likewise. * gas/cfi/cfi-s390-1.d: Likewise. * gas/cfi/cfi-s390x-1.d: Likewise. * gas/cfi/cfi-sh-1.d: Likewise. * gas/cfi/cfi-sparc-1.d: Likewise. * gas/cfi/cfi-sparc64-1.d: Likewise. * gas/cfi/cfi-x86_64.d: Likewise.
This commit is contained in:
Alan Modra
parent
2a80c17810
commit
d84de024e6
14 changed files with 181 additions and 130 deletions
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@ -1,3 +1,10 @@
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2004-08-16 Alan Modra <amodra@bigpond.net.au>
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* readelf.c (debug_apply_rela_addends): New function, extracted from..
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(display_debug_info): ..here.
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(display_debug_frames): Call debug_apply_rela_addends. Don't do
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DW_EH_PE_pcrel adjustment for ET_REL.
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2004-08-06 Andreas Schwab <schwab@suse.de>
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* readelf.c (dump_relocations): Fix typo when calculating
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@ -8506,6 +8506,88 @@ read_and_display_attr (unsigned long attribute,
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return data;
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}
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/* Apply addends of RELA relocations. */
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static int
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debug_apply_rela_addends (FILE *file,
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Elf_Internal_Shdr *section,
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int reloc_size,
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unsigned char *sec_data,
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unsigned char *start,
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unsigned char *end)
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{
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Elf_Internal_Shdr *relsec;
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if (end - start < reloc_size)
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return 1;
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for (relsec = section_headers;
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relsec < section_headers + elf_header.e_shnum;
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++relsec)
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{
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unsigned long nrelas;
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Elf_Internal_Rela *rela, *rp;
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Elf_Internal_Shdr *symsec;
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Elf_Internal_Sym *symtab;
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Elf_Internal_Sym *sym;
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if (relsec->sh_type != SHT_RELA
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|| SECTION_HEADER (relsec->sh_info) != section
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|| relsec->sh_size == 0)
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continue;
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if (!slurp_rela_relocs (file, relsec->sh_offset, relsec->sh_size,
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&rela, &nrelas))
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return 0;
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symsec = SECTION_HEADER (relsec->sh_link);
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symtab = GET_ELF_SYMBOLS (file, symsec);
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for (rp = rela; rp < rela + nrelas; ++rp)
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{
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unsigned char *loc;
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if (rp->r_offset >= (bfd_vma) (start - sec_data)
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&& rp->r_offset < (bfd_vma) (end - sec_data) - reloc_size)
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loc = sec_data + rp->r_offset;
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else
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continue;
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if (is_32bit_elf)
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{
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sym = symtab + ELF32_R_SYM (rp->r_info);
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if (ELF32_R_SYM (rp->r_info) != 0
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&& ELF32_ST_TYPE (sym->st_info) != STT_SECTION)
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{
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warn (_("Skipping unexpected symbol type %u\n"),
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ELF32_ST_TYPE (sym->st_info));
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continue;
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}
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}
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else
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{
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sym = symtab + ELF64_R_SYM (rp->r_info);
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if (ELF64_R_SYM (rp->r_info) != 0
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&& ELF64_ST_TYPE (sym->st_info) != STT_SECTION)
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{
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warn (_("Skipping unexpected symbol type %u\n"),
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ELF64_ST_TYPE (sym->st_info));
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continue;
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}
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}
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byte_put (loc, rp->r_addend, reloc_size);
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}
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free (symtab);
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free (rela);
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break;
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}
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return 1;
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}
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static int
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display_debug_info (Elf_Internal_Shdr *section,
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unsigned char *start,
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@ -8522,7 +8604,6 @@ display_debug_info (Elf_Internal_Shdr *section,
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while (start < end)
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{
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DWARF2_Internal_CompUnit compunit;
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Elf_Internal_Shdr *relsec;
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unsigned char *hdrptr;
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unsigned char *cu_abbrev_offset_ptr;
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unsigned char *tags;
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@ -8552,71 +8633,13 @@ display_debug_info (Elf_Internal_Shdr *section,
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compunit.cu_version = byte_get (hdrptr, 2);
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hdrptr += 2;
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/* Apply addends of RELA relocations. */
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for (relsec = section_headers;
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relsec < section_headers + elf_header.e_shnum;
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++relsec)
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{
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unsigned long nrelas;
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Elf_Internal_Rela *rela, *rp;
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Elf_Internal_Shdr *symsec;
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Elf_Internal_Sym *symtab;
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Elf_Internal_Sym *sym;
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cu_offset = start - section_begin;
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start += compunit.cu_length + initial_length_size;
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if (relsec->sh_type != SHT_RELA
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|| SECTION_HEADER (relsec->sh_info) != section
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|| relsec->sh_size == 0)
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continue;
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if (!slurp_rela_relocs (file, relsec->sh_offset, relsec->sh_size,
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& rela, & nrelas))
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return 0;
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symsec = SECTION_HEADER (relsec->sh_link);
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symtab = GET_ELF_SYMBOLS (file, symsec);
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for (rp = rela; rp < rela + nrelas; ++rp)
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{
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unsigned char *loc;
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if (rp->r_offset >= (bfd_vma) (hdrptr - section_begin)
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&& section->sh_size > (bfd_vma) offset_size
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&& rp->r_offset <= section->sh_size - offset_size)
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loc = section_begin + rp->r_offset;
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else
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continue;
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if (is_32bit_elf)
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{
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sym = symtab + ELF32_R_SYM (rp->r_info);
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if (ELF32_R_SYM (rp->r_info) != 0
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&& ELF32_ST_TYPE (sym->st_info) != STT_SECTION)
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{
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warn (_("Skipping unexpected symbol type %u\n"),
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ELF32_ST_TYPE (sym->st_info));
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continue;
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}
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}
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else
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{
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sym = symtab + ELF64_R_SYM (rp->r_info);
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if (ELF64_R_SYM (rp->r_info) != 0
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&& ELF64_ST_TYPE (sym->st_info) != STT_SECTION)
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{
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warn (_("Skipping unexpected symbol type %u\n"),
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ELF64_ST_TYPE (sym->st_info));
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continue;
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}
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}
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byte_put (loc, rp->r_addend, offset_size);
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}
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free (rela);
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break;
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}
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if (elf_header.e_type == ET_REL
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&& !debug_apply_rela_addends (file, section, offset_size,
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section_begin, hdrptr, start))
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return 0;
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cu_abbrev_offset_ptr = hdrptr;
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compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
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@ -8626,8 +8649,6 @@ display_debug_info (Elf_Internal_Shdr *section,
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hdrptr += 1;
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tags = hdrptr;
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cu_offset = start - section_begin;
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start += compunit.cu_length + initial_length_size;
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printf (_(" Compilation Unit @ %lx:\n"), cu_offset);
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printf (_(" Length: %ld\n"), compunit.cu_length);
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@ -9017,6 +9038,11 @@ display_debug_frames (Elf_Internal_Shdr *section,
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block_end = saved_start + length + initial_length_size;
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cie_id = byte_get (start, offset_size); start += offset_size;
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if (elf_header.e_type == ET_REL
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&& !debug_apply_rela_addends (file, section, offset_size,
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section_start, start, block_end))
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return 0;
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if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
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{
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int version;
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@ -9181,7 +9207,10 @@ display_debug_frames (Elf_Internal_Shdr *section,
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encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
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fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
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if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel)
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if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
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/* Don't adjust for ET_REL since there's invariably a pcrel
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reloc here, which we haven't applied. */
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&& elf_header.e_type != ET_REL)
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fc->pc_begin += section->sh_addr + (start - section_start);
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start += encoded_ptr_size;
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fc->pc_range = byte_get (start, encoded_ptr_size);
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@ -9380,7 +9409,8 @@ display_debug_frames (Elf_Internal_Shdr *section,
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case DW_CFA_set_loc:
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vma = get_encoded_value (start, fc->fde_encoding);
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if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel)
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if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
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&& elf_header.e_type != ET_REL)
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vma += section->sh_addr + (start - section_start);
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start += encoded_ptr_size;
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if (do_debug_frames_interp)
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@ -1,3 +1,17 @@
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2004-08-16 Alan Modra <amodra@bigpond.net.au>
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* gas/cfi/cfi-alpha-1.d: Adjust for readelf fix.
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* gas/cfi/cfi-alpha-3.d: Likewise.
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* gas/cfi/cfi-i386.d: Likewise.
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* gas/cfi/cfi-m68k.d: Likewise.
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* gas/cfi/cfi-ppc-1.d: Likewise.
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* gas/cfi/cfi-s390-1.d: Likewise.
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* gas/cfi/cfi-s390x-1.d: Likewise.
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* gas/cfi/cfi-sh-1.d: Likewise.
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* gas/cfi/cfi-sparc-1.d: Likewise.
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* gas/cfi/cfi-sparc64-1.d: Likewise.
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* gas/cfi/cfi-x86_64.d: Likewise.
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2004-08-13 Jan Beulich <jbeulich@novell.com>
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* gas/all/altmacro.[sd]: New test.
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@ -13,8 +13,8 @@ The section .eh_frame contains:
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DW_CFA_def_cfa_reg: r30
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DW_CFA_nop
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00000014 00000020 00000018 FDE cie=00000000 pc=0000001c..00000050
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DW_CFA_advance_loc: 24 to 00000034
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00000014 00000020 00000018 FDE cie=00000000 pc=00000000..00000034
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DW_CFA_advance_loc: 24 to 00000018
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DW_CFA_def_cfa: r15 ofs 32
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DW_CFA_offset: r26 at cfa-32
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DW_CFA_offset: r9 at cfa-24
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@ -13,20 +13,20 @@ The section .eh_frame contains:
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DW_CFA_def_cfa_reg: r30
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DW_CFA_nop
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00000014 00000028 00000018 FDE cie=00000000 pc=0000001c..0000005c
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DW_CFA_advance_loc: 4 to 00000020
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00000014 00000028 00000018 FDE cie=00000000 pc=00000000..00000040
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DW_CFA_advance_loc: 4 to 00000004
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DW_CFA_def_cfa_offset: 32
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DW_CFA_advance_loc: 4 to 00000024
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DW_CFA_advance_loc: 4 to 00000008
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DW_CFA_offset: r26 at cfa-32
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DW_CFA_advance_loc: 4 to 00000028
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DW_CFA_advance_loc: 4 to 0000000c
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DW_CFA_offset: r9 at cfa-24
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DW_CFA_advance_loc: 4 to 0000002c
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DW_CFA_advance_loc: 4 to 00000010
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DW_CFA_offset: r15 at cfa-16
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DW_CFA_advance_loc: 4 to 00000030
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DW_CFA_advance_loc: 4 to 00000014
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DW_CFA_offset: r34 at cfa-8
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DW_CFA_advance_loc: 4 to 00000034
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DW_CFA_advance_loc: 4 to 00000018
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DW_CFA_def_cfa_reg: r15
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DW_CFA_advance_loc: 36 to 00000058
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DW_CFA_advance_loc: 36 to 0000003c
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DW_CFA_def_cfa: r30 ofs 0
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DW_CFA_nop
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DW_CFA_nop
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@ -15,33 +15,33 @@ The section .eh_frame contains:
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DW_CFA_nop
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DW_CFA_nop
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00000018 00000014 0000001c FDE cie=00000000 pc=00000020..00000032
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DW_CFA_advance_loc: 6 to 00000026
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00000018 00000014 0000001c FDE cie=00000000 pc=00000000..00000012
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DW_CFA_advance_loc: 6 to 00000006
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DW_CFA_def_cfa_offset: 4664
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DW_CFA_advance_loc: 11 to 00000031
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DW_CFA_advance_loc: 11 to 00000011
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DW_CFA_def_cfa_offset: 4
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00000030 00000018 00000034 FDE cie=00000000 pc=0000004a..00000057
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DW_CFA_advance_loc: 1 to 0000004b
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00000030 00000018 00000034 FDE cie=00000000 pc=00000012..0000001f
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DW_CFA_advance_loc: 1 to 00000013
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DW_CFA_def_cfa_offset: 8
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DW_CFA_offset: r5 at cfa-8
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DW_CFA_advance_loc: 2 to 0000004d
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DW_CFA_advance_loc: 2 to 00000015
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DW_CFA_def_cfa_reg: r5
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DW_CFA_advance_loc: 9 to 00000056
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DW_CFA_advance_loc: 9 to 0000001e
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DW_CFA_def_cfa_reg: r4
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0000004c 00000014 00000050 FDE cie=00000000 pc=00000073..00000083
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DW_CFA_advance_loc: 2 to 00000075
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0000004c 00000014 00000050 FDE cie=00000000 pc=0000001f..0000002f
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DW_CFA_advance_loc: 2 to 00000021
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DW_CFA_def_cfa_reg: r3
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DW_CFA_advance_loc: 13 to 00000082
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DW_CFA_advance_loc: 13 to 0000002e
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DW_CFA_def_cfa: r4 ofs 4
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00000064 00000010 00000068 FDE cie=00000000 pc=0000009b..000000a1
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00000064 00000010 00000068 FDE cie=00000000 pc=0000002f..00000035
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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00000078 00000010 0000007c FDE cie=00000000 pc=000000b5..000000c4
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00000078 00000010 0000007c FDE cie=00000000 pc=00000035..00000044
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DW_CFA_nop
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DW_CFA_nop
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DW_CFA_nop
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@ -15,22 +15,22 @@ The section .eh_frame contains:
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DW_CFA_nop
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DW_CFA_nop
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00000018 00000014 0000001c FDE cie=00000000 pc=00000020..0000002c
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DW_CFA_advance_loc: 4 to 00000024
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00000018 00000014 0000001c FDE cie=00000000 pc=00000000..0000000c
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DW_CFA_advance_loc: 4 to 00000004
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DW_CFA_def_cfa_offset: 4664
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DW_CFA_advance_loc: 6 to 0000002a
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DW_CFA_advance_loc: 6 to 0000000a
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DW_CFA_def_cfa_offset: 4
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00000030 00000018 00000034 FDE cie=00000000 pc=00000038..00000044
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DW_CFA_advance_loc: 4 to 0000003c
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00000030 00000018 00000034 FDE cie=00000000 pc=0000000c..00000018
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DW_CFA_advance_loc: 4 to 00000010
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DW_CFA_def_cfa_offset: 8
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DW_CFA_offset: r14 at cfa-8
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DW_CFA_def_cfa_reg: r14
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DW_CFA_advance_loc: 6 to 00000042
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DW_CFA_advance_loc: 6 to 00000016
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DW_CFA_def_cfa_reg: r15
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DW_CFA_nop
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0000004c 00000010 00000050 FDE cie=00000000 pc=00000054..00000058
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0000004c 00000010 00000050 FDE cie=00000000 pc=00000018..0000001c
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DW_CFA_nop
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DW_CFA_nop
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@ -14,16 +14,16 @@ The section .eh_frame contains:
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DW_CFA_def_cfa: r1 ofs 0
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00000014 00000020 00000018 FDE cie=00000000 pc=0000001c..0000008c
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DW_CFA_advance_loc: 4 to 00000020
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00000014 00000020 00000018 FDE cie=00000000 pc=00000000..00000070
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DW_CFA_advance_loc: 4 to 00000004
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DW_CFA_def_cfa_offset: 48
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DW_CFA_advance_loc: 16 to 00000030
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DW_CFA_advance_loc: 16 to 00000014
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DW_CFA_offset: r27 at cfa-20
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DW_CFA_offset: r26 at cfa-24
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DW_CFA_offset_extended_sf: r65 at cfa\+4
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DW_CFA_advance_loc: 8 to 00000038
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DW_CFA_advance_loc: 8 to 0000001c
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DW_CFA_offset: r28 at cfa-16
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DW_CFA_advance_loc: 8 to 00000040
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DW_CFA_advance_loc: 8 to 00000024
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DW_CFA_offset: r29 at cfa-12
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DW_CFA_nop
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DW_CFA_nop
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@ -14,8 +14,8 @@ The section .eh_frame contains:
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DW_CFA_def_cfa: r15 ofs 96
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|
||||
00000014 00000024 00000018 FDE cie=00000000 pc=0000001c..0000006a
|
||||
DW_CFA_advance_loc: 4 to 00000020
|
||||
00000014 00000024 00000018 FDE cie=00000000 pc=00000000..0000004e
|
||||
DW_CFA_advance_loc: 4 to 00000004
|
||||
DW_CFA_offset: r15 at cfa-36
|
||||
DW_CFA_offset: r14 at cfa-40
|
||||
DW_CFA_offset: r13 at cfa-44
|
||||
|
|
@ -24,7 +24,7 @@ The section .eh_frame contains:
|
|||
DW_CFA_offset: r10 at cfa-56
|
||||
DW_CFA_offset: r9 at cfa-60
|
||||
DW_CFA_offset: r8 at cfa-64
|
||||
DW_CFA_advance_loc: 22 to 00000036
|
||||
DW_CFA_advance_loc: 22 to 0000001a
|
||||
DW_CFA_def_cfa_offset: 192
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
|
|
|||
|
|
@ -17,8 +17,8 @@ The section .eh_frame contains:
|
|||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
||||
00000018 00000024 0000001c FDE cie=00000000 pc=00000020..00000090
|
||||
DW_CFA_advance_loc: 6 to 00000026
|
||||
00000018 00000024 0000001c FDE cie=00000000 pc=00000000..00000070
|
||||
DW_CFA_advance_loc: 6 to 00000006
|
||||
DW_CFA_offset: r15 at cfa-40
|
||||
DW_CFA_offset: r14 at cfa-48
|
||||
DW_CFA_offset: r13 at cfa-56
|
||||
|
|
@ -27,7 +27,7 @@ The section .eh_frame contains:
|
|||
DW_CFA_offset: r10 at cfa-80
|
||||
DW_CFA_offset: r9 at cfa-88
|
||||
DW_CFA_offset: r8 at cfa-96
|
||||
DW_CFA_advance_loc: 8 to 0000002e
|
||||
DW_CFA_advance_loc: 8 to 0000000e
|
||||
DW_CFA_def_cfa_offset: 320
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
|
|
|||
|
|
@ -12,16 +12,16 @@ The section .eh_frame contains:
|
|||
|
||||
DW_CFA_def_cfa: r15 ofs 0
|
||||
|
||||
00000014 00000020 00000018 FDE cie=00000000 pc=0000001c..00000048
|
||||
DW_CFA_advance_loc: 2 to 0000001e
|
||||
00000014 00000020 00000018 FDE cie=00000000 pc=00000000..0000002c
|
||||
DW_CFA_advance_loc: 2 to 00000002
|
||||
DW_CFA_def_cfa_offset: 4
|
||||
DW_CFA_advance_loc: 2 to 00000020
|
||||
DW_CFA_advance_loc: 2 to 00000004
|
||||
DW_CFA_def_cfa_offset: 8
|
||||
DW_CFA_offset: r15 at cfa-4
|
||||
DW_CFA_offset: r17 at cfa-8
|
||||
DW_CFA_advance_loc: 6 to 00000026
|
||||
DW_CFA_advance_loc: 6 to 0000000a
|
||||
DW_CFA_def_cfa_reg: r14
|
||||
DW_CFA_advance_loc: 2 to 00000028
|
||||
DW_CFA_advance_loc: 2 to 0000000c
|
||||
DW_CFA_def_cfa_offset: 40
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
|
|
|||
|
|
@ -14,8 +14,8 @@ The section .eh_frame contains:
|
|||
|
||||
DW_CFA_def_cfa: r14 ofs 0
|
||||
|
||||
00000014 00000014 00000018 FDE cie=00000000 pc=0000001c..00000040
|
||||
DW_CFA_advance_loc: 4 to 00000020
|
||||
00000014 00000014 00000018 FDE cie=00000000 pc=00000000..00000024
|
||||
DW_CFA_advance_loc: 4 to 00000004
|
||||
DW_CFA_def_cfa_reg: r30
|
||||
DW_CFA_GNU_window_save
|
||||
DW_CFA_register: r15 in r31
|
||||
|
|
|
|||
|
|
@ -17,8 +17,8 @@ The section .eh_frame contains:
|
|||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
||||
00000018 00000014 0000001c FDE cie=00000000 pc=00000020..00000050
|
||||
DW_CFA_advance_loc: 4 to 00000024
|
||||
00000018 00000014 0000001c FDE cie=00000000 pc=00000000..00000030
|
||||
DW_CFA_advance_loc: 4 to 00000004
|
||||
DW_CFA_def_cfa_reg: r30
|
||||
DW_CFA_GNU_window_save
|
||||
DW_CFA_register: r15 in r31
|
||||
|
|
|
|||
|
|
@ -15,37 +15,37 @@ The section .eh_frame contains:
|
|||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
||||
00000018 00000014 0000001c FDE cie=00000000 pc=00000020..00000034
|
||||
DW_CFA_advance_loc: 7 to 00000027
|
||||
00000018 00000014 0000001c FDE cie=00000000 pc=00000000..00000014
|
||||
DW_CFA_advance_loc: 7 to 00000007
|
||||
DW_CFA_def_cfa_offset: 4668
|
||||
DW_CFA_advance_loc: 12 to 00000033
|
||||
DW_CFA_advance_loc: 12 to 00000013
|
||||
DW_CFA_def_cfa_offset: 8
|
||||
|
||||
00000030 0000001c 00000034 FDE cie=00000000 pc=00000038..00000046
|
||||
DW_CFA_advance_loc: 1 to 00000039
|
||||
00000030 0000001c 00000034 FDE cie=00000000 pc=00000014..00000022
|
||||
DW_CFA_advance_loc: 1 to 00000015
|
||||
DW_CFA_def_cfa_offset: 16
|
||||
DW_CFA_offset: r6 at cfa-16
|
||||
DW_CFA_advance_loc: 3 to 0000003c
|
||||
DW_CFA_advance_loc: 3 to 00000018
|
||||
DW_CFA_def_cfa_reg: r6
|
||||
DW_CFA_advance_loc: 9 to 00000045
|
||||
DW_CFA_advance_loc: 9 to 00000021
|
||||
DW_CFA_def_cfa: r7 ofs 8
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
||||
00000050 00000014 00000054 FDE cie=00000000 pc=00000058..0000006b
|
||||
DW_CFA_advance_loc: 3 to 0000005b
|
||||
00000050 00000014 00000054 FDE cie=00000000 pc=00000022..00000035
|
||||
DW_CFA_advance_loc: 3 to 00000025
|
||||
DW_CFA_def_cfa_reg: r12
|
||||
DW_CFA_advance_loc: 15 to 0000006a
|
||||
DW_CFA_advance_loc: 15 to 00000034
|
||||
DW_CFA_def_cfa_reg: r7
|
||||
DW_CFA_nop
|
||||
|
||||
00000068 00000010 0000006c FDE cie=00000000 pc=00000070..00000076
|
||||
00000068 00000010 0000006c FDE cie=00000000 pc=00000035..0000003b
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
||||
0000007c 00000010 00000080 FDE cie=00000000 pc=00000084..00000096
|
||||
0000007c 00000010 00000080 FDE cie=00000000 pc=0000003b..0000004d
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
DW_CFA_nop
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue