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authorH.J. Lu <hjl.tools@gmail.com>2005-09-30 14:53:24 +0000
committerH.J. Lu <hjl.tools@gmail.com>2005-09-30 14:53:24 +0000
commit1007acb31dab630af1c33753224c009931bff6f5 (patch)
tree5eba2b0d27e7bdfe230e215ba750f6883c723622
parent700dd8b7556c7ab213e21fd228c6172b5399d55a (diff)
downloadgdb-1007acb31dab630af1c33753224c009931bff6f5.zip
gdb-1007acb31dab630af1c33753224c009931bff6f5.tar.gz
gdb-1007acb31dab630af1c33753224c009931bff6f5.tar.bz2
2005-09-30 H.J. Lu <hongjiu.lu@intel.com>
* readelf.c: Reordered. (is_relocatable): New. (dwarf_section): New structure for DWARF section. (load_debug_section): New. (free_debug_section): Likewise. (debug_str_section): Likewise. (debug_abbrev_section): Likewise. (debug_str_contents): Removed. (debug_str_size): Likewise. (debug_loc_contents): Likewise. (debug_loc_size): Likewise. (debug_range_contents): Likewise. (debug_range_size): Likewise. (load_debug_str): Likewise. (free_debug_str): Likewise. (load_debug_loc): Likewise. (free_debug_loc): Likewise. (load_debug_arange): Likewise. (free_debug_arange): Likewise. (load_debug_abbrev): Likewise. (free_debug_abbrev): Likewise. (fetch_indirect_string): Updated. (debug_apply_rela_addends): Likewise. (process_debug_info): Likewise. (get_debug_info): Likewise. (display_debug_lines): Likewise. (display_debug_pubnames): Likewise. (display_debug_macinfo): Likewise. (display_debug_abbrev): Likewise. (display_debug_loc): Likewise. (display_debug_str): Likewise. (display_debug_info): Likewise. (display_debug_aranges): Likewise. (display_debug_ranges): Likewise. (display_debug_frames): Likewise. (display_debug_not_supported): Likewise. (debug_displays): Likewise. (display_debug_section): Likewise. (get_file_header): Set is_relocatable.
-rw-r--r--binutils/ChangeLog42
-rw-r--r--binutils/readelf.c852
2 files changed, 431 insertions, 463 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index e6f14f6..c992f65 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,5 +1,47 @@
2005-09-30 H.J. Lu <hongjiu.lu@intel.com>
+ * readelf.c: Reordered.
+ (is_relocatable): New.
+ (dwarf_section): New structure for DWARF section.
+ (load_debug_section): New.
+ (free_debug_section): Likewise.
+ (debug_str_section): Likewise.
+ (debug_abbrev_section): Likewise.
+ (debug_str_contents): Removed.
+ (debug_str_size): Likewise.
+ (debug_loc_contents): Likewise.
+ (debug_loc_size): Likewise.
+ (debug_range_contents): Likewise.
+ (debug_range_size): Likewise.
+ (load_debug_str): Likewise.
+ (free_debug_str): Likewise.
+ (load_debug_loc): Likewise.
+ (free_debug_loc): Likewise.
+ (load_debug_arange): Likewise.
+ (free_debug_arange): Likewise.
+ (load_debug_abbrev): Likewise.
+ (free_debug_abbrev): Likewise.
+ (fetch_indirect_string): Updated.
+ (debug_apply_rela_addends): Likewise.
+ (process_debug_info): Likewise.
+ (get_debug_info): Likewise.
+ (display_debug_lines): Likewise.
+ (display_debug_pubnames): Likewise.
+ (display_debug_macinfo): Likewise.
+ (display_debug_abbrev): Likewise.
+ (display_debug_loc): Likewise.
+ (display_debug_str): Likewise.
+ (display_debug_info): Likewise.
+ (display_debug_aranges): Likewise.
+ (display_debug_ranges): Likewise.
+ (display_debug_frames): Likewise.
+ (display_debug_not_supported): Likewise.
+ (debug_displays): Likewise.
+ (display_debug_section): Likewise.
+ (get_file_header): Set is_relocatable.
+
+2005-09-30 H.J. Lu <hongjiu.lu@intel.com>
+
* readelf.c (debug_apply_rela_addends): Relocate the whole
section.
(process_debug_info): Don't call debug_apply_rela_addends.
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 85239e6..7da3966 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -171,6 +171,7 @@ static int do_debug_loc;
static int do_arch;
static int do_notes;
static int is_32bit_elf;
+static int is_relocatable;
static int have_frame_base;
static int need_base_address;
static bfd_vma eh_addr_size;
@@ -363,68 +364,6 @@ get_data (void *var, FILE *file, long offset, size_t size, size_t nmemb,
return mvar;
}
-static bfd_vma
-byte_get_little_endian (unsigned char *field, int size)
-{
- switch (size)
- {
- case 1:
- return *field;
-
- case 2:
- return ((unsigned int) (field[0]))
- | (((unsigned int) (field[1])) << 8);
-
-#ifndef BFD64
- case 8:
- /* We want to extract data from an 8 byte wide field and
- place it into a 4 byte wide field. Since this is a little
- endian source we can just use the 4 byte extraction code. */
- /* Fall through. */
-#endif
- case 4:
- return ((unsigned long) (field[0]))
- | (((unsigned long) (field[1])) << 8)
- | (((unsigned long) (field[2])) << 16)
- | (((unsigned long) (field[3])) << 24);
-
-#ifdef BFD64
- case 8:
- return ((bfd_vma) (field[0]))
- | (((bfd_vma) (field[1])) << 8)
- | (((bfd_vma) (field[2])) << 16)
- | (((bfd_vma) (field[3])) << 24)
- | (((bfd_vma) (field[4])) << 32)
- | (((bfd_vma) (field[5])) << 40)
- | (((bfd_vma) (field[6])) << 48)
- | (((bfd_vma) (field[7])) << 56);
-#endif
- default:
- error (_("Unhandled data length: %d\n"), size);
- abort ();
- }
-}
-
-static bfd_vma
-byte_get_signed (unsigned char *field, int size)
-{
- bfd_vma x = byte_get (field, size);
-
- switch (size)
- {
- case 1:
- return (x ^ 0x80) - 0x80;
- case 2:
- return (x ^ 0x8000) - 0x8000;
- case 4:
- return (x ^ 0x80000000) - 0x80000000;
- case 8:
- return x;
- default:
- abort ();
- }
-}
-
static void
byte_put_little_endian (unsigned char *field, bfd_vma value, int size)
{
@@ -614,48 +553,6 @@ print_symbol (int width, const char *symbol)
printf ("%-.*s", width, symbol);
}
-static bfd_vma
-byte_get_big_endian (unsigned char *field, int size)
-{
- switch (size)
- {
- case 1:
- return *field;
-
- case 2:
- return ((unsigned int) (field[1])) | (((int) (field[0])) << 8);
-
-#ifndef BFD64
- case 8:
- /* Although we are extracing data from an 8 byte wide field,
- we are returning only 4 bytes of data. */
- field += 4;
- /* Fall thru */
-#endif
- case 4:
- return ((unsigned long) (field[3]))
- | (((unsigned long) (field[2])) << 8)
- | (((unsigned long) (field[1])) << 16)
- | (((unsigned long) (field[0])) << 24);
-
-#ifdef BFD64
- case 8:
- return ((bfd_vma) (field[7]))
- | (((bfd_vma) (field[6])) << 8)
- | (((bfd_vma) (field[5])) << 16)
- | (((bfd_vma) (field[4])) << 24)
- | (((bfd_vma) (field[3])) << 32)
- | (((bfd_vma) (field[2])) << 40)
- | (((bfd_vma) (field[1])) << 48)
- | (((bfd_vma) (field[0])) << 56);
-#endif
-
- default:
- error (_("Unhandled data length: %d\n"), size);
- abort ();
- }
-}
-
static void
byte_put_big_endian (unsigned char *field, bfd_vma value, int size)
{
@@ -7467,6 +7364,263 @@ dump_section (Elf_Internal_Shdr *section, FILE *file)
}
+struct dwarf_section
+{
+ const char *name;
+ unsigned char *start;
+ bfd_vma address;
+ bfd_size_type size;
+};
+
+static int process_debug_info (struct dwarf_section *, void *, int);
+
+static void
+load_debug_section (struct dwarf_section *section, void *file)
+{
+ Elf_Internal_Shdr *sec;
+ char buf [64];
+
+ /* If it is already loaded, do nothing. */
+ if (section->start != NULL)
+ return;
+
+ /* Locate the debug section. */
+ sec = find_section (section->name);
+ if (sec == NULL)
+ return;
+
+ snprintf (buf, sizeof (buf), _("%s section data"), section->name);
+ section->address = sec->sh_addr;
+ section->size = sec->sh_size;
+ section->start = get_data (NULL, file, sec->sh_offset, 1,
+ sec->sh_size, buf);
+}
+
+static void
+free_debug_section (struct dwarf_section *section)
+{
+ if (section->start == NULL)
+ return;
+
+ free ((char *) section->start);
+ section->start = NULL;
+ section->address = 0;
+ section->size = 0;
+}
+
+/* Apply addends of RELA relocations. */
+
+static int
+debug_apply_rela_addends (void *file,
+ Elf_Internal_Shdr *section,
+ 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 (!is_relocatable)
+ return 1;
+
+ if (section->sh_size < reloc_size)
+ return 1;
+
+ for (relsec = section_headers;
+ relsec < section_headers + elf_header.e_shnum;
+ ++relsec)
+ {
+ unsigned long nrelas;
+ Elf_Internal_Rela *rela, *rp;
+ Elf_Internal_Shdr *symsec;
+ Elf_Internal_Sym *symtab;
+ Elf_Internal_Sym *sym;
+
+ if (relsec->sh_type != SHT_RELA
+ || SECTION_HEADER_INDEX (relsec->sh_info) >= elf_header.e_shnum
+ || SECTION_HEADER (relsec->sh_info) != section
+ || relsec->sh_size == 0
+ || SECTION_HEADER_INDEX (relsec->sh_link) >= elf_header.e_shnum)
+ continue;
+
+ if (!slurp_rela_relocs (file, relsec->sh_offset, relsec->sh_size,
+ &rela, &nrelas))
+ return 0;
+
+ symsec = SECTION_HEADER (relsec->sh_link);
+ symtab = GET_ELF_SYMBOLS (file, symsec);
+
+ for (rp = rela; rp < rela + nrelas; ++rp)
+ {
+ unsigned char *loc;
+
+ 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)
+ {
+ sym = symtab + ELF32_R_SYM (rp->r_info);
+
+ if (ELF32_R_SYM (rp->r_info) != 0
+ && ELF32_ST_TYPE (sym->st_info) != STT_SECTION
+ /* Relocations against object symbols can happen,
+ eg when referencing a global array. For an
+ example of this see the _clz.o binary in libgcc.a. */
+ && ELF32_ST_TYPE (sym->st_info) != STT_OBJECT)
+ {
+ warn (_("skipping unexpected symbol type %s in relocation in section .rela%s\n"),
+ get_symbol_type (ELF32_ST_TYPE (sym->st_info)),
+ SECTION_NAME (section));
+ continue;
+ }
+ }
+ else
+ {
+ /* In MIPS little-endian objects, r_info isn't really a
+ 64-bit little-endian value: it has a 32-bit little-endian
+ symbol index followed by four individual byte fields.
+ Reorder INFO accordingly. */
+ if (elf_header.e_machine == EM_MIPS
+ && elf_header.e_ident[EI_DATA] != ELFDATA2MSB)
+ rp->r_info = (((rp->r_info & 0xffffffff) << 32)
+ | ((rp->r_info >> 56) & 0xff)
+ | ((rp->r_info >> 40) & 0xff00)
+ | ((rp->r_info >> 24) & 0xff0000)
+ | ((rp->r_info >> 8) & 0xff000000));
+
+ sym = symtab + ELF64_R_SYM (rp->r_info);
+
+ if (ELF64_R_SYM (rp->r_info) != 0
+ && ELF64_ST_TYPE (sym->st_info) != STT_SECTION
+ && ELF64_ST_TYPE (sym->st_info) != STT_OBJECT)
+ {
+ warn (_("skipping unexpected symbol type %s in relocation in section .rela.%s\n"),
+ get_symbol_type (ELF64_ST_TYPE (sym->st_info)),
+ SECTION_NAME (section));
+ continue;
+ }
+ }
+
+ byte_put (loc, rp->r_addend, reloc_size);
+ }
+
+ free (symtab);
+ free (rela);
+ break;
+ }
+ return 1;
+}
+
+static bfd_vma
+byte_get_little_endian (unsigned char *field, int size)
+{
+ switch (size)
+ {
+ case 1:
+ return *field;
+
+ case 2:
+ return ((unsigned int) (field[0]))
+ | (((unsigned int) (field[1])) << 8);
+
+#ifndef BFD64
+ case 8:
+ /* We want to extract data from an 8 byte wide field and
+ place it into a 4 byte wide field. Since this is a little
+ endian source we can just use the 4 byte extraction code. */
+ /* Fall through. */
+#endif
+ case 4:
+ return ((unsigned long) (field[0]))
+ | (((unsigned long) (field[1])) << 8)
+ | (((unsigned long) (field[2])) << 16)
+ | (((unsigned long) (field[3])) << 24);
+
+#ifdef BFD64
+ case 8:
+ return ((bfd_vma) (field[0]))
+ | (((bfd_vma) (field[1])) << 8)
+ | (((bfd_vma) (field[2])) << 16)
+ | (((bfd_vma) (field[3])) << 24)
+ | (((bfd_vma) (field[4])) << 32)
+ | (((bfd_vma) (field[5])) << 40)
+ | (((bfd_vma) (field[6])) << 48)
+ | (((bfd_vma) (field[7])) << 56);
+#endif
+ default:
+ error (_("Unhandled data length: %d\n"), size);
+ abort ();
+ }
+}
+
+static bfd_vma
+byte_get_signed (unsigned char *field, int size)
+{
+ bfd_vma x = byte_get (field, size);
+
+ switch (size)
+ {
+ case 1:
+ return (x ^ 0x80) - 0x80;
+ case 2:
+ return (x ^ 0x8000) - 0x8000;
+ case 4:
+ return (x ^ 0x80000000) - 0x80000000;
+ case 8:
+ return x;
+ default:
+ abort ();
+ }
+}
+
+static bfd_vma
+byte_get_big_endian (unsigned char *field, int size)
+{
+ switch (size)
+ {
+ case 1:
+ return *field;
+
+ case 2:
+ return ((unsigned int) (field[1])) | (((int) (field[0])) << 8);
+
+#ifndef BFD64
+ case 8:
+ /* Although we are extracing data from an 8 byte wide field,
+ we are returning only 4 bytes of data. */
+ field += 4;
+ /* Fall thru */
+#endif
+ case 4:
+ return ((unsigned long) (field[3]))
+ | (((unsigned long) (field[2])) << 8)
+ | (((unsigned long) (field[1])) << 16)
+ | (((unsigned long) (field[0])) << 24);
+
+#ifdef BFD64
+ case 8:
+ return ((bfd_vma) (field[7]))
+ | (((bfd_vma) (field[6])) << 8)
+ | (((bfd_vma) (field[5])) << 16)
+ | (((bfd_vma) (field[4])) << 24)
+ | (((bfd_vma) (field[3])) << 32)
+ | (((bfd_vma) (field[2])) << 40)
+ | (((bfd_vma) (field[1])) << 48)
+ | (((bfd_vma) (field[0])) << 56);
+#endif
+
+ default:
+ error (_("Unhandled data length: %d\n"), size);
+ abort ();
+ }
+}
+
static unsigned long int
read_leb128 (unsigned char *data, unsigned int *length_return, int sign)
{
@@ -7587,266 +7741,34 @@ process_extended_line_op (unsigned char *data, int is_stmt, int pointer_size)
return len;
}
-static const char *debug_str_contents;
-static bfd_vma debug_str_size;
-
-static void
-load_debug_str (FILE *file)
-{
- Elf_Internal_Shdr *sec;
-
- /* If it is already loaded, do nothing. */
- if (debug_str_contents != NULL)
- return;
-
- /* Locate the .debug_str section. */
- sec = find_section (".debug_str");
- if (sec == NULL)
- return;
-
- debug_str_size = sec->sh_size;
-
- debug_str_contents = get_data (NULL, file, sec->sh_offset, 1, sec->sh_size,
- _("debug_str section data"));
-}
-
-static void
-free_debug_str (void)
-{
- if (debug_str_contents == NULL)
- return;
-
- free ((char *) debug_str_contents);
- debug_str_contents = NULL;
- debug_str_size = 0;
-}
+static struct dwarf_section debug_str_section = {
+ ".debug_str",
+ NULL,
+ 0,
+ 0
+};
static const char *
fetch_indirect_string (unsigned long offset)
{
- if (debug_str_contents == NULL)
+ if (debug_str_section.start == NULL)
return _("<no .debug_str section>");
- if (offset > debug_str_size)
+ if (offset > debug_str_section.size)
{
warn (_("DW_FORM_strp offset too big: %lx\n"), offset);
return _("<offset is too big>");
}
- return debug_str_contents + offset;
-}
-
-static const char *debug_loc_contents;
-static bfd_vma debug_loc_size;
-
-static void
-load_debug_loc (FILE *file)
-{
- Elf_Internal_Shdr *sec;
-
- /* If it is already loaded, do nothing. */
- if (debug_loc_contents != NULL)
- return;
-
- /* Locate the .debug_loc section. */
- sec = find_section (".debug_loc");
- if (sec == NULL)
- return;
-
- debug_loc_size = sec->sh_size;
-
- debug_loc_contents = get_data (NULL, file, sec->sh_offset, 1, sec->sh_size,
- _("debug_loc section data"));
-}
-
-static void
-free_debug_loc (void)
-{
- if (debug_loc_contents == NULL)
- return;
-
- free ((char *) debug_loc_contents);
- debug_loc_contents = NULL;
- debug_loc_size = 0;
-}
-
-static const char * debug_range_contents;
-static unsigned long debug_range_size;
-
-static void
-load_debug_range (FILE *file)
-{
- Elf_Internal_Shdr *sec;
-
- /* If it is already loaded, do nothing. */
- if (debug_range_contents != NULL)
- return;
-
- /* Locate the .debug_ranges section. */
- sec = find_section (".debug_ranges");
- if (sec == NULL)
- return;
-
- debug_range_size = sec->sh_size;
-
- debug_range_contents = get_data (NULL, file, sec->sh_offset, 1, sec->sh_size,
- _("debug_range section data"));
-}
-
-static void
-free_debug_range (void)
-{
- if (debug_range_contents == NULL)
- return;
-
- free ((char *) debug_range_contents);
- debug_range_contents = NULL;
- debug_range_size = 0;
+ return debug_str_section.start + offset;
}
-static unsigned char *debug_abbrev_contents;
-static unsigned long debug_abbrev_size;
-
-static void
-load_debug_abbrev (FILE *file)
-{
- Elf_Internal_Shdr *sec;
-
- /* If it is already loaded, do nothing. */
- if (debug_abbrev_contents != NULL)
- return;
-
- /* Locate the .debug_ranges section. */
- sec = find_section (".debug_abbrev");
- if (sec == NULL)
- return;
-
- debug_abbrev_size = sec->sh_size;
-
- debug_abbrev_contents = get_data (NULL, file, sec->sh_offset, 1,
- sec->sh_size,
- _("debug_abbrev section data"));
-}
-
-static void
-free_debug_abbrev (void)
-{
- if (debug_abbrev_contents == NULL)
- return;
-
- free ((char *) debug_abbrev_contents);
- debug_abbrev_contents = NULL;
- debug_abbrev_size = 0;
-}
-
-/* Apply addends of RELA relocations. */
-
-static int
-debug_apply_rela_addends (FILE *file,
- Elf_Internal_Shdr *section,
- 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 (section->sh_size < reloc_size)
- return 1;
-
- for (relsec = section_headers;
- relsec < section_headers + elf_header.e_shnum;
- ++relsec)
- {
- unsigned long nrelas;
- Elf_Internal_Rela *rela, *rp;
- Elf_Internal_Shdr *symsec;
- Elf_Internal_Sym *symtab;
- Elf_Internal_Sym *sym;
-
- if (relsec->sh_type != SHT_RELA
- || SECTION_HEADER_INDEX (relsec->sh_info) >= elf_header.e_shnum
- || SECTION_HEADER (relsec->sh_info) != section
- || relsec->sh_size == 0
- || SECTION_HEADER_INDEX (relsec->sh_link) >= elf_header.e_shnum)
- continue;
-
- if (!slurp_rela_relocs (file, relsec->sh_offset, relsec->sh_size,
- &rela, &nrelas))
- return 0;
-
- symsec = SECTION_HEADER (relsec->sh_link);
- symtab = GET_ELF_SYMBOLS (file, symsec);
-
- for (rp = rela; rp < rela + nrelas; ++rp)
- {
- unsigned char *loc;
-
- 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)
- {
- sym = symtab + ELF32_R_SYM (rp->r_info);
-
- if (ELF32_R_SYM (rp->r_info) != 0
- && ELF32_ST_TYPE (sym->st_info) != STT_SECTION
- /* Relocations against object symbols can happen,
- eg when referencing a global array. For an
- example of this see the _clz.o binary in libgcc.a. */
- && ELF32_ST_TYPE (sym->st_info) != STT_OBJECT)
- {
- warn (_("skipping unexpected symbol type %s in relocation in section .rela%s\n"),
- get_symbol_type (ELF32_ST_TYPE (sym->st_info)),
- SECTION_NAME (section));
- continue;
- }
- }
- else
- {
- /* In MIPS little-endian objects, r_info isn't really a
- 64-bit little-endian value: it has a 32-bit little-endian
- symbol index followed by four individual byte fields.
- Reorder INFO accordingly. */
- if (elf_header.e_machine == EM_MIPS
- && elf_header.e_ident[EI_DATA] != ELFDATA2MSB)
- rp->r_info = (((rp->r_info & 0xffffffff) << 32)
- | ((rp->r_info >> 56) & 0xff)
- | ((rp->r_info >> 40) & 0xff00)
- | ((rp->r_info >> 24) & 0xff0000)
- | ((rp->r_info >> 8) & 0xff000000));
-
- sym = symtab + ELF64_R_SYM (rp->r_info);
-
- if (ELF64_R_SYM (rp->r_info) != 0
- && ELF64_ST_TYPE (sym->st_info) != STT_SECTION
- && ELF64_ST_TYPE (sym->st_info) != STT_OBJECT)
- {
- warn (_("skipping unexpected symbol type %s in relocation in section .rela.%s\n"),
- get_symbol_type (ELF64_ST_TYPE (sym->st_info)),
- SECTION_NAME (section));
- continue;
- }
- }
-
- byte_put (loc, rp->r_addend, reloc_size);
- }
-
- free (symtab);
- free (rela);
- break;
- }
- return 1;
-}
+static struct dwarf_section debug_abbrev_section = {
+ ".debug_abbrev",
+ NULL,
+ 0,
+ 0
+};
/* FIXME: There are better and more efficient ways to handle
these structures. For now though, I just want something that
@@ -9080,10 +9002,11 @@ read_and_display_attr (unsigned long attribute,
anything to the user. */
static int
-process_debug_info (Elf_Internal_Shdr *section, unsigned char *start,
- FILE *file, int do_loc)
+process_debug_info (struct dwarf_section *section, void *file,
+ int do_loc)
{
- unsigned char *end = start + section->sh_size;
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
unsigned char *section_begin;
unsigned int unit;
unsigned int num_units = 0;
@@ -9113,7 +9036,7 @@ process_debug_info (Elf_Internal_Shdr *section, unsigned char *start,
if (num_units == 0)
{
- error (_("No comp units in .debug_info section ?"));
+ error (_("No comp units in %s section ?"), section->name);
return 0;
}
@@ -9130,18 +9053,16 @@ process_debug_info (Elf_Internal_Shdr *section, unsigned char *start,
if (!do_loc)
{
- printf (_("The section %s contains:\n\n"),
- SECTION_NAME (section));
+ printf (_("The section %s contains:\n\n"), section->name);
- load_debug_str (file);
- load_debug_loc (file);
- load_debug_range (file);
+ load_debug_section (&debug_str_section, file);
}
- load_debug_abbrev (file);
- if (debug_abbrev_contents == NULL)
+ load_debug_section (&debug_abbrev_section, file);
+ if (debug_abbrev_section.start == NULL)
{
- warn (_("Unable to locate .debug_abbrev section!\n"));
+ warn (_("Unable to locate %s section!\n"),
+ debug_abbrev_section.name);
return 0;
}
@@ -9223,8 +9144,10 @@ process_debug_info (Elf_Internal_Shdr *section, unsigned char *start,
/* Process the abbrevs used by this compilation unit. */
process_abbrev_section
- (debug_abbrev_contents + compunit.cu_abbrev_offset,
- debug_abbrev_contents + debug_abbrev_size);
+ ((unsigned char *) debug_abbrev_section.start
+ + compunit.cu_abbrev_offset,
+ (unsigned char *) debug_abbrev_section.start
+ + debug_abbrev_section.size);
level = 0;
while (tags < start)
@@ -9298,7 +9221,7 @@ process_debug_info (Elf_Internal_Shdr *section, unsigned char *start,
}
}
- free_debug_abbrev ();
+ free_debug_section (&debug_abbrev_section);
/* Set num_debug_info_entries here so that it can be used to check if
we need to process .debug_loc and .debug_ranges sections. */
@@ -9308,9 +9231,7 @@ process_debug_info (Elf_Internal_Shdr *section, unsigned char *start,
if (!do_loc)
{
- free_debug_range ();
- free_debug_str ();
- free_debug_loc ();
+ free_debug_section (&debug_str_section);
printf ("\n");
}
@@ -9367,11 +9288,11 @@ get_pointer_size_and_offset_of_comp_unit (unsigned int comp_unit,
compilation units upon success. */
static unsigned int
-get_debug_info (FILE * file)
+get_debug_info (void * file)
{
Elf_Internal_Shdr * section;
- unsigned char * start;
- int ret;
+ struct dwarf_section sec;
+ int ret;
/* Reset the last pointer size so that we can issue correct error
messages if we are displaying the contents of more than one section. */
@@ -9382,33 +9303,37 @@ get_debug_info (FILE * file)
if (num_debug_info_entries > 0)
return num_debug_info_entries;
- section = find_section (".debug_info");
+ sec.name = ".debug_info";
+ section = find_section (sec.name);
if (section == NULL)
return 0;
- start = get_data (NULL, file, section->sh_offset, 1, section->sh_size,
- _("extracting information from .debug_info section"));
- if (start == NULL)
+ sec.start = get_data (NULL, file, section->sh_offset, 1,
+ section->sh_size,
+ _("extracting information from .debug_info section"));
+ if (sec.start == NULL)
return 0;
- ret = (debug_apply_rela_addends (file, section, start)
- && process_debug_info (section, start, file, 1));
+ sec.address = section->sh_addr;
+ sec.size = section->sh_size;
+ ret = (debug_apply_rela_addends (file, section, sec.start)
+ && process_debug_info (&sec, file, 1));
- free (start);
+ free (sec.start);
return ret ? num_debug_info_entries : 0;
}
static int
-display_debug_lines (Elf_Internal_Shdr *section,
- unsigned char *start, FILE *file)
+display_debug_lines (struct dwarf_section *section, void *file)
{
+ unsigned char *start = section->start;
unsigned char *data = start;
- unsigned char *end = start + section->sh_size;
+ unsigned char *end = start + section->size;
unsigned int comp_unit = 0;
printf (_("\nDump of debug contents of section %s:\n\n"),
- SECTION_NAME (section));
+ section->name);
get_debug_info (file);
@@ -9443,7 +9368,7 @@ display_debug_lines (Elf_Internal_Shdr *section,
initial_length_size = 4;
}
- if (info.li_length + initial_length_size > section->sh_size)
+ if (info.li_length + initial_length_size > section->size)
{
warn
(_("The line info appears to be corrupt - the section is too small\n"));
@@ -9692,16 +9617,14 @@ display_debug_lines (Elf_Internal_Shdr *section,
}
static int
-display_debug_pubnames (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+display_debug_pubnames (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
{
DWARF2_Internal_PubNames pubnames;
- unsigned char *end;
-
- end = start + section->sh_size;
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
- printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
+ printf (_("Contents of the %s section:\n\n"), section->name);
while (start < end)
{
@@ -9778,16 +9701,16 @@ display_debug_pubnames (Elf_Internal_Shdr *section,
}
static int
-display_debug_macinfo (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+display_debug_macinfo (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
{
- unsigned char *end = start + section->sh_size;
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
unsigned char *curr = start;
unsigned int bytes_read;
enum dwarf_macinfo_record_type op;
- printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
+ printf (_("Contents of the %s section:\n\n"), section->name);
while (curr < end)
{
@@ -9855,14 +9778,14 @@ display_debug_macinfo (Elf_Internal_Shdr *section,
static int
-display_debug_abbrev (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+display_debug_abbrev (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
{
abbrev_entry *entry;
- unsigned char *end = start + section->sh_size;
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
- printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
+ printf (_("Contents of the %s section:\n\n"), section->name);
do
{
@@ -9898,9 +9821,9 @@ display_debug_abbrev (Elf_Internal_Shdr *section,
}
static int
-display_debug_loc (Elf_Internal_Shdr *section,
- unsigned char *start, FILE *file)
+display_debug_loc (struct dwarf_section *section, void *file)
{
+ unsigned char *start = section->start;
unsigned char *section_end;
unsigned long bytes;
unsigned char *section_begin = start;
@@ -9913,12 +9836,12 @@ display_debug_loc (Elf_Internal_Shdr *section,
int use_debug_info = 1;
unsigned char *next;
- bytes = section->sh_size;
+ bytes = section->size;
section_end = start + bytes;
if (bytes == 0)
{
- printf (_("\nThe .debug_loc section is empty.\n"));
+ printf (_("\nThe %s section is empty.\n"), section->name);
return 0;
}
@@ -9969,10 +9892,10 @@ display_debug_loc (Elf_Internal_Shdr *section,
error (_("No location lists in .debug_info section!\n"));
if (debug_information [first].loc_offsets [0] != 0)
- warn (_("Location lists in .debug_loc section start at 0x%lx\n"),
- debug_information [first].loc_offsets [0]);
+ warn (_("Location lists in %s section start at 0x%lx\n"),
+ section->name, debug_information [first].loc_offsets [0]);
- printf (_("Contents of the .debug_loc section:\n\n"));
+ printf (_("Contents of the %s section:\n\n"), section->name);
printf (_(" Offset Begin End Expression\n"));
seen_first_offset = 0;
@@ -10090,23 +10013,20 @@ display_debug_loc (Elf_Internal_Shdr *section,
}
static int
-display_debug_str (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+display_debug_str (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
{
- unsigned long bytes;
- bfd_vma addr;
-
- addr = section->sh_addr;
- bytes = section->sh_size;
+ unsigned char *start = section->start;
+ unsigned long bytes = section->size;
+ bfd_vma addr = section->address;
if (bytes == 0)
{
- printf (_("\nThe .debug_str section is empty.\n"));
+ printf (_("\nThe %s section is empty.\n"), section->name);
return 0;
}
- printf (_("Contents of the .debug_str section:\n\n"));
+ printf (_("Contents of the %s section:\n\n"), section->name);
while (bytes)
{
@@ -10152,21 +10072,20 @@ display_debug_str (Elf_Internal_Shdr *section,
static int
-display_debug_info (Elf_Internal_Shdr * section,
- unsigned char * start, FILE * file)
+display_debug_info (struct dwarf_section *section, void *file)
{
- return process_debug_info (section, start, file, 0);
+ return process_debug_info (section, file, 0);
}
static int
-display_debug_aranges (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+display_debug_aranges (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
{
- unsigned char *end = start + section->sh_size;
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
- printf (_("The section %s contains:\n\n"), SECTION_NAME (section));
+ printf (_("The section %s contains:\n\n"), section->name);
while (start < end)
{
@@ -10256,10 +10175,10 @@ display_debug_aranges (Elf_Internal_Shdr *section,
}
static int
-display_debug_ranges (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+display_debug_ranges (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
{
+ unsigned char *start = section->start;
unsigned char *section_end;
unsigned long bytes;
unsigned char *section_begin = start;
@@ -10272,12 +10191,12 @@ display_debug_ranges (Elf_Internal_Shdr *section,
int use_debug_info = 1;
unsigned char *next;
- bytes = section->sh_size;
+ bytes = section->size;
section_end = start + bytes;
if (bytes == 0)
{
- printf (_("\nThe .debug_ranges section is empty.\n"));
+ printf (_("\nThe %s section is empty.\n"), section->name);
return 0;
}
@@ -10328,10 +10247,10 @@ display_debug_ranges (Elf_Internal_Shdr *section,
error (_("No range lists in .debug_info section!\n"));
if (debug_information [first].range_lists [0] != 0)
- warn (_("Range lists in .debug_ranges section start at 0x%lx\n"),
- debug_information [first].range_lists [0]);
+ warn (_("Range lists in %s section start at 0x%lx\n"),
+ section->name, debug_information [first].range_lists [0]);
- printf (_("Contents of the .debug_ranges section:\n\n"));
+ printf (_("Contents of the %s section:\n\n"), section->name);
printf (_(" Offset Begin End\n"));
seen_first_offset = 0;
@@ -10356,11 +10275,13 @@ display_debug_ranges (Elf_Internal_Shdr *section,
else
{
if (start < next)
- warn (_("There is a hole [0x%lx - 0x%lx] in .debug_ranges section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
+ warn (_("There is a hole [0x%lx - 0x%lx] in %s section.\n"),
+ (long)(start - section_begin),
+ (long)(next - section_begin), section->name);
else if (start > next)
- warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_ranges section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
+ warn (_("There is an overlap [0x%lx - 0x%lx] in %s section.\n"),
+ (long)(start - section_begin),
+ (long)(next - section_begin), section->name);
}
start = next;
@@ -10540,20 +10461,20 @@ get_encoded_value (unsigned char *data, int encoding)
#define SLEB() read_leb128 (start, & length_return, 1); start += length_return
static int
-display_debug_frames (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+display_debug_frames (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
{
- unsigned char *end = start + section->sh_size;
+ unsigned char *start = section->start;
+ unsigned char *end = start + section->size;
unsigned char *section_start = start;
Frame_Chunk *chunks = 0;
Frame_Chunk *remembered_state = 0;
Frame_Chunk *rs;
- int is_eh = streq (SECTION_NAME (section), ".eh_frame");
+ int is_eh = streq (section->name, ".eh_frame");
unsigned int length_return;
int max_regs = 0;
- printf (_("The section %s contains:\n"), SECTION_NAME (section));
+ printf (_("The section %s contains:\n"), section->name);
while (start < end)
{
@@ -10761,10 +10682,11 @@ display_debug_frames (Elf_Internal_Shdr *section,
fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
- /* Don't adjust for ET_REL since there's invariably a pcrel
- reloc here, which we haven't applied. */
- && elf_header.e_type != ET_REL)
- fc->pc_begin += section->sh_addr + (start - section_start);
+ /* Don't adjust for relocatable file since there's
+ invariably a pcrel reloc here, which we haven't
+ applied. */
+ && !is_relocatable)
+ fc->pc_begin += section->address + (start - section_start);
start += encoded_ptr_size;
fc->pc_range = byte_get (start, encoded_ptr_size);
start += encoded_ptr_size;
@@ -10964,8 +10886,8 @@ display_debug_frames (Elf_Internal_Shdr *section,
case DW_CFA_set_loc:
vma = get_encoded_value (start, fc->fde_encoding);
if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
- && elf_header.e_type != ET_REL)
- vma += section->sh_addr + (start - section_start);
+ && !is_relocatable)
+ vma += section->address + (start - section_start);
start += encoded_ptr_size;
if (do_debug_frames_interp)
frame_display_row (fc, &need_col_headers, &max_regs);
@@ -11217,12 +11139,11 @@ display_debug_frames (Elf_Internal_Shdr *section,
#undef SLEB
static int
-display_debug_not_supported (Elf_Internal_Shdr *section,
- unsigned char *start ATTRIBUTE_UNUSED,
- FILE *file ATTRIBUTE_UNUSED)
+display_debug_not_supported (struct dwarf_section *section,
+ void *file ATTRIBUTE_UNUSED)
{
printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
- SECTION_NAME (section));
+ section->name);
return 1;
}
@@ -11232,7 +11153,7 @@ display_debug_not_supported (Elf_Internal_Shdr *section,
static struct
{
const char *const name;
- int (*display) (Elf_Internal_Shdr *, unsigned char *, FILE *);
+ int (*display) (struct dwarf_section *, void *);
unsigned int relocate : 1;
}
debug_displays[] =
@@ -11277,21 +11198,24 @@ display_debug_section (Elf_Internal_Shdr *section, FILE *file)
for (i = NUM_ELEM (debug_displays); i--;)
if (streq (debug_displays[i].name, name))
{
- unsigned char *start;
-
- start = get_data (NULL, file, section->sh_offset, 1, length,
- _("debug section data"));
- if (start == NULL)
+ struct dwarf_section sec;
+
+ sec.name = name;
+ sec.address = section->sh_addr;
+ sec.size = section->sh_size;
+ sec.start = get_data (NULL, file, section->sh_offset, 1,
+ length, _("debug section data"));
+ if (sec.start == NULL)
{
result = 0;
break;
}
if (!debug_displays[i].relocate
- || debug_apply_rela_addends (file, section, start))
- result &= debug_displays[i].display (section, start, file);
+ || debug_apply_rela_addends (file, section, sec.start))
+ result &= debug_displays[i].display (&sec, file);
- free (start);
+ free (sec.start);
/* If we loaded in the abbrev section
at some point, we must release it here. */
@@ -12230,6 +12154,8 @@ get_file_header (FILE *file)
get_64bit_section_headers (file, 1);
}
+ is_relocatable = elf_header.e_type == ET_REL;
+
return 1;
}