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Diffstat (limited to 'bfd/elfcode.h')
-rw-r--r--bfd/elfcode.h137
1 files changed, 47 insertions, 90 deletions
diff --git a/bfd/elfcode.h b/bfd/elfcode.h
index c113dd7..eb667eb 100644
--- a/bfd/elfcode.h
+++ b/bfd/elfcode.h
@@ -1133,10 +1133,12 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
unsigned long symcount; /* Number of external ELF symbols */
elf_symbol_type *sym; /* Pointer to current bfd symbol */
elf_symbol_type *symbase; /* Buffer for generated bfd symbols */
- Elf_Internal_Sym i_sym;
- Elf_External_Sym *x_symp = NULL;
- Elf_External_Sym_Shndx *x_shndx = NULL;
- Elf_External_Versym *x_versymp = NULL;
+ Elf_Internal_Sym *isym;
+ Elf_Internal_Sym *isymend;
+ Elf_Internal_Sym *isymbuf = NULL;
+ Elf_External_Versym *xver;
+ Elf_External_Versym *xverbuf = NULL;
+ struct elf_backend_data *ebd;
bfd_size_type amt;
/* Read each raw ELF symbol, converting from external ELF form to
@@ -1151,24 +1153,8 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
if (! dynamic)
{
- Elf_Internal_Shdr *shndx_hdr;
-
hdr = &elf_tdata (abfd)->symtab_hdr;
- shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
verhdr = NULL;
-
- /* If we have a SHT_SYMTAB_SHNDX section for the symbol table,
- read the raw contents. */
- if (elf_elfsections (abfd) != NULL
- && elf_elfsections (abfd)[shndx_hdr->sh_link] == hdr)
- {
- amt = shndx_hdr->sh_size;
- x_shndx = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
- if (x_shndx == NULL
- || bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
- || bfd_bread ((PTR) x_shndx, amt, abfd) != amt)
- goto error_return;
- }
}
else
{
@@ -1187,39 +1173,24 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
}
}
- if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0)
- goto error_return;
-
+ ebd = get_elf_backend_data (abfd);
symcount = hdr->sh_size / sizeof (Elf_External_Sym);
-
if (symcount == 0)
sym = symbase = NULL;
else
{
- unsigned long i;
-
- if (bfd_seek (abfd, hdr->sh_offset, SEEK_SET) != 0)
- goto error_return;
+ isymbuf = bfd_elf_get_elf_syms (abfd, hdr, symcount, 0,
+ NULL, NULL, NULL);
+ if (isymbuf == NULL)
+ return -1;
amt = symcount;
amt *= sizeof (elf_symbol_type);
symbase = (elf_symbol_type *) bfd_zalloc (abfd, amt);
if (symbase == (elf_symbol_type *) NULL)
goto error_return;
- sym = symbase;
-
- /* Temporarily allocate room for the raw ELF symbols. */
- amt = symcount;
- amt *= sizeof (Elf_External_Sym);
- x_symp = (Elf_External_Sym *) bfd_malloc (amt);
- if (x_symp == NULL)
- goto error_return;
-
- if (bfd_bread ((PTR) x_symp, amt, abfd) != amt)
- goto error_return;
/* Read the raw ELF version symbol information. */
-
if (verhdr != NULL
&& verhdr->sh_size / sizeof (Elf_External_Versym) != symcount)
{
@@ -1239,42 +1210,40 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
if (bfd_seek (abfd, verhdr->sh_offset, SEEK_SET) != 0)
goto error_return;
- x_versymp = (Elf_External_Versym *) bfd_malloc (verhdr->sh_size);
- if (x_versymp == NULL && verhdr->sh_size != 0)
+ xverbuf = (Elf_External_Versym *) bfd_malloc (verhdr->sh_size);
+ if (xverbuf == NULL && verhdr->sh_size != 0)
goto error_return;
- if (bfd_bread ((PTR) x_versymp, verhdr->sh_size, abfd)
+ if (bfd_bread ((PTR) xverbuf, verhdr->sh_size, abfd)
!= verhdr->sh_size)
goto error_return;
}
/* Skip first symbol, which is a null dummy. */
- for (i = 1; i < symcount; i++)
+ xver = xverbuf;
+ if (xver != NULL)
+ ++xver;
+ isymend = isymbuf + symcount;
+ for (isym = isymbuf + 1, sym = symbase; isym < isymend; isym++, sym++)
{
- elf_swap_symbol_in (abfd, (const PTR) (x_symp + i),
- (const PTR) (x_shndx + (x_shndx ? i : 0)),
- &i_sym);
- memcpy (&sym->internal_elf_sym, &i_sym, sizeof (Elf_Internal_Sym));
-#ifdef ELF_KEEP_EXTSYM
- memcpy (&sym->native_elf_sym, x_symp + i, sizeof (Elf_External_Sym));
-#endif
+ memcpy (&sym->internal_elf_sym, isym, sizeof (Elf_Internal_Sym));
sym->symbol.the_bfd = abfd;
sym->symbol.name = bfd_elf_string_from_elf_section (abfd,
hdr->sh_link,
- i_sym.st_name);
+ isym->st_name);
- sym->symbol.value = i_sym.st_value;
+ sym->symbol.value = isym->st_value;
- if (i_sym.st_shndx == SHN_UNDEF)
+ if (isym->st_shndx == SHN_UNDEF)
{
sym->symbol.section = bfd_und_section_ptr;
}
- else if (i_sym.st_shndx < SHN_LORESERVE
- || i_sym.st_shndx > SHN_HIRESERVE)
+ else if (isym->st_shndx < SHN_LORESERVE
+ || isym->st_shndx > SHN_HIRESERVE)
{
sym->symbol.section = section_from_elf_index (abfd,
- i_sym.st_shndx);
+ isym->st_shndx);
if (sym->symbol.section == NULL)
{
/* This symbol is in a section for which we did not
@@ -1283,18 +1252,18 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
sym->symbol.section = bfd_abs_section_ptr;
}
}
- else if (i_sym.st_shndx == SHN_ABS)
+ else if (isym->st_shndx == SHN_ABS)
{
sym->symbol.section = bfd_abs_section_ptr;
}
- else if (i_sym.st_shndx == SHN_COMMON)
+ else if (isym->st_shndx == SHN_COMMON)
{
sym->symbol.section = bfd_com_section_ptr;
/* Elf puts the alignment into the `value' field, and
the size into the `size' field. BFD wants to see the
size in the value field, and doesn't care (at the
moment) about the alignment. */
- sym->symbol.value = i_sym.st_size;
+ sym->symbol.value = isym->st_size;
}
else
sym->symbol.section = bfd_abs_section_ptr;
@@ -1304,14 +1273,13 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
if ((abfd->flags & (EXEC_P | DYNAMIC)) != 0)
sym->symbol.value -= sym->symbol.section->vma;
- switch (ELF_ST_BIND (i_sym.st_info))
+ switch (ELF_ST_BIND (isym->st_info))
{
case STB_LOCAL:
sym->symbol.flags |= BSF_LOCAL;
break;
case STB_GLOBAL:
- if (i_sym.st_shndx != SHN_UNDEF
- && i_sym.st_shndx != SHN_COMMON)
+ if (isym->st_shndx != SHN_UNDEF && isym->st_shndx != SHN_COMMON)
sym->symbol.flags |= BSF_GLOBAL;
break;
case STB_WEAK:
@@ -1319,7 +1287,7 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
break;
}
- switch (ELF_ST_TYPE (i_sym.st_info))
+ switch (ELF_ST_TYPE (isym->st_info))
{
case STT_SECTION:
sym->symbol.flags |= BSF_SECTION_SYM | BSF_DEBUGGING;
@@ -1338,31 +1306,24 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
if (dynamic)
sym->symbol.flags |= BSF_DYNAMIC;
- if (x_versymp != NULL)
+ if (xver != NULL)
{
Elf_Internal_Versym iversym;
- _bfd_elf_swap_versym_in (abfd, x_versymp + i, &iversym);
+ _bfd_elf_swap_versym_in (abfd, xver, &iversym);
sym->version = iversym.vs_vers;
+ xver++;
}
/* Do some backend-specific processing on this symbol. */
- {
- struct elf_backend_data *ebd = get_elf_backend_data (abfd);
- if (ebd->elf_backend_symbol_processing)
- (*ebd->elf_backend_symbol_processing) (abfd, &sym->symbol);
- }
-
- sym++;
+ if (ebd->elf_backend_symbol_processing)
+ (*ebd->elf_backend_symbol_processing) (abfd, &sym->symbol);
}
}
/* Do some backend-specific processing on this symbol table. */
- {
- struct elf_backend_data *ebd = get_elf_backend_data (abfd);
- if (ebd->elf_backend_symbol_table_processing)
- (*ebd->elf_backend_symbol_table_processing) (abfd, symbase, symcount);
- }
+ if (ebd->elf_backend_symbol_table_processing)
+ (*ebd->elf_backend_symbol_table_processing) (abfd, symbase, symcount);
/* We rely on the zalloc to clear out the final symbol entry. */
@@ -1382,21 +1343,17 @@ elf_slurp_symbol_table (abfd, symptrs, dynamic)
*symptrs = 0; /* Final null pointer */
}
- if (x_shndx != NULL)
- free (x_shndx);
- if (x_versymp != NULL)
- free (x_versymp);
- if (x_symp != NULL)
- free (x_symp);
+ if (xverbuf != NULL)
+ free (xverbuf);
+ if (isymbuf != NULL && hdr->contents != (unsigned char *) isymbuf)
+ free (isymbuf);
return symcount;
error_return:
- if (x_shndx != NULL)
- free (x_shndx);
- if (x_versymp != NULL)
- free (x_versymp);
- if (x_symp != NULL)
- free (x_symp);
+ if (xverbuf != NULL)
+ free (xverbuf);
+ if (isymbuf != NULL && hdr->contents != (unsigned char *) isymbuf)
+ free (isymbuf);
return -1;
}
generated by cgit v1.1 at 2024-08-25 01:06:16 +0000