diff options
Diffstat (limited to 'binutils/readelf.c')
| -rw-r--r-- | binutils/readelf.c | 78 |
1 files changed, 40 insertions, 38 deletions
diff --git a/binutils/readelf.c b/binutils/readelf.c index 5f55309..85239e6 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -7744,14 +7744,17 @@ free_debug_abbrev (void) static int debug_apply_rela_addends (FILE *file, Elf_Internal_Shdr *section, - int reloc_size, - unsigned char *sec_data, - unsigned char *start, - unsigned char *end) + unsigned char *start) { Elf_Internal_Shdr *relsec; + unsigned char *end = start + section->sh_size; + /* FIXME: The relocation field size is relocation type dependent. */ + unsigned int reloc_size = 4; + + if (elf_header.e_type != ET_REL) + return 1; - if (end - start < reloc_size) + if (section->sh_size < reloc_size) return 1; for (relsec = section_headers; @@ -7782,11 +7785,14 @@ debug_apply_rela_addends (FILE *file, { unsigned char *loc; - if (rp->r_offset >= (bfd_vma) (start - sec_data) - && rp->r_offset < (bfd_vma) (end - sec_data) - reloc_size) - loc = sec_data + rp->r_offset; - else - continue; + loc = start + rp->r_offset; + if ((loc + reloc_size) > end) + { + warn (_("skipping invalid relocation offset 0x%lx in section %s\n"), + (unsigned long) rp->r_offset, + SECTION_NAME (section)); + continue; + } if (is_32bit_elf) { @@ -9174,11 +9180,6 @@ process_debug_info (Elf_Internal_Shdr *section, unsigned char *start, cu_offset = start - section_begin; start += compunit.cu_length + initial_length_size; - if (elf_header.e_type == ET_REL - && !debug_apply_rela_addends (file, section, offset_size, - section_begin, hdrptr, start)) - return 0; - cu_abbrev_offset_ptr = hdrptr; compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size); hdrptr += offset_size; @@ -9390,7 +9391,9 @@ get_debug_info (FILE * file) if (start == NULL) return 0; - ret = process_debug_info (section, start, file, 1); + ret = (debug_apply_rela_addends (file, section, start) + && process_debug_info (section, start, file, 1)); + free (start); return ret ? num_debug_info_entries : 0; @@ -10593,11 +10596,6 @@ display_debug_frames (Elf_Internal_Shdr *section, block_end = saved_start + length + initial_length_size; cie_id = byte_get (start, offset_size); start += offset_size; - if (elf_header.e_type == ET_REL - && !debug_apply_rela_addends (file, section, offset_size, - section_start, start, block_end)) - return 0; - if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID)) { int version; @@ -11235,25 +11233,26 @@ static struct { const char *const name; int (*display) (Elf_Internal_Shdr *, unsigned char *, FILE *); + unsigned int relocate : 1; } debug_displays[] = { - { ".debug_abbrev", display_debug_abbrev }, - { ".debug_aranges", display_debug_aranges }, - { ".debug_frame", display_debug_frames }, - { ".debug_info", display_debug_info }, - { ".debug_line", display_debug_lines }, - { ".debug_pubnames", display_debug_pubnames }, - { ".eh_frame", display_debug_frames }, - { ".debug_macinfo", display_debug_macinfo }, - { ".debug_str", display_debug_str }, - { ".debug_loc", display_debug_loc }, - { ".debug_pubtypes", display_debug_pubnames }, - { ".debug_ranges", display_debug_ranges }, - { ".debug_static_func", display_debug_not_supported }, - { ".debug_static_vars", display_debug_not_supported }, - { ".debug_types", display_debug_not_supported }, - { ".debug_weaknames", display_debug_not_supported } + { ".debug_abbrev", display_debug_abbrev, 0 }, + { ".debug_aranges", display_debug_aranges, 0 }, + { ".debug_frame", display_debug_frames, 1 }, + { ".debug_info", display_debug_info, 1 }, + { ".debug_line", display_debug_lines, 0 }, + { ".debug_pubnames", display_debug_pubnames, 0 }, + { ".eh_frame", display_debug_frames, 1 }, + { ".debug_macinfo", display_debug_macinfo, 0 }, + { ".debug_str", display_debug_str, 0 }, + { ".debug_loc", display_debug_loc, 0 }, + { ".debug_pubtypes", display_debug_pubnames, 0 }, + { ".debug_ranges", display_debug_ranges, 0 }, + { ".debug_static_func", display_debug_not_supported, 0 }, + { ".debug_static_vars", display_debug_not_supported, 0 }, + { ".debug_types", display_debug_not_supported, 0 }, + { ".debug_weaknames", display_debug_not_supported, 0 } }; static int @@ -11288,7 +11287,10 @@ display_debug_section (Elf_Internal_Shdr *section, FILE *file) break; } - result &= debug_displays[i].display (section, start, file); + if (!debug_displays[i].relocate + || debug_apply_rela_addends (file, section, start)) + result &= debug_displays[i].display (section, start, file); + free (start); /* If we loaded in the abbrev section |