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* elfcode.h (swap_out_syms): Get alignment of common symbol from

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st_value field of saved ELF symbol information, if there is any.
This commit is contained in:
Ian Lance Taylor 1994-07-05 18:05:03 +00:00
parent aee611f53c
commit 71edd06df7
2 changed files with 61 additions and 28 deletions
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5
bfd/ChangeLog
View file

@ -1,3 +1,8 @@
Tue Jul 5 13:56:52 1994 Ian Lance Taylor (ian@sanguine.cygnus.com)
* elfcode.h (swap_out_syms): Get alignment of common symbol from
st_value field of saved ELF symbol information, if there is any.
Mon Jul 4 19:13:32 1994 Jeff Law (law@snake.cs.utah.edu) Mon Jul 4 19:13:32 1994 Jeff Law (law@snake.cs.utah.edu)
* som.h (R_HPPA_COMPLEX): Define. * som.h (R_HPPA_COMPLEX): Define.

84
bfd/elfcode.h
View file

@ -92,6 +92,8 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define elf_swap_reloca_in NAME(bfd_elf,swap_reloca_in) #define elf_swap_reloca_in NAME(bfd_elf,swap_reloca_in)
#define elf_swap_reloc_out NAME(bfd_elf,swap_reloc_out) #define elf_swap_reloc_out NAME(bfd_elf,swap_reloc_out)
#define elf_swap_reloca_out NAME(bfd_elf,swap_reloca_out) #define elf_swap_reloca_out NAME(bfd_elf,swap_reloca_out)
#define elf_swap_symbol_in NAME(bfd_elf,swap_symbol_in)
#define elf_swap_symbol_out NAME(bfd_elf,swap_symbol_out)
#define elf_swap_dyn_in NAME(bfd_elf,swap_dyn_in) #define elf_swap_dyn_in NAME(bfd_elf,swap_dyn_in)
#define elf_swap_dyn_out NAME(bfd_elf,swap_dyn_out) #define elf_swap_dyn_out NAME(bfd_elf,swap_dyn_out)
#define elf_get_reloc_upper_bound NAME(bfd_elf,get_reloc_upper_bound) #define elf_get_reloc_upper_bound NAME(bfd_elf,get_reloc_upper_bound)
@ -190,7 +192,7 @@ static void elf_debug_file PARAMS ((Elf_Internal_Ehdr *));
/* Translate an ELF symbol in external format into an ELF symbol in internal /* Translate an ELF symbol in external format into an ELF symbol in internal
format. */ format. */
static void void
elf_swap_symbol_in (abfd, src, dst) elf_swap_symbol_in (abfd, src, dst)
bfd *abfd; bfd *abfd;
Elf_External_Sym *src; Elf_External_Sym *src;
@ -207,7 +209,7 @@ elf_swap_symbol_in (abfd, src, dst)
/* Translate an ELF symbol in internal format into an ELF symbol in external /* Translate an ELF symbol in internal format into an ELF symbol in external
format. */ format. */
static void void
elf_swap_symbol_out (abfd, src, dst) elf_swap_symbol_out (abfd, src, dst)
bfd *abfd; bfd *abfd;
Elf_Internal_Sym *src; Elf_Internal_Sym *src;
@ -1606,7 +1608,7 @@ elf_compute_section_file_positions (abfd, link_info)
/* Do any elf backend specific processing first. */ /* Do any elf backend specific processing first. */
if (bed->elf_backend_begin_write_processing) if (bed->elf_backend_begin_write_processing)
(*bed->elf_backend_begin_write_processing) (abfd); (*bed->elf_backend_begin_write_processing) (abfd, link_info);
if (! prep_headers (abfd)) if (! prep_headers (abfd))
return false; return false;
@ -2268,6 +2270,7 @@ swap_out_syms (abfd)
{ {
Elf_Internal_Sym sym; Elf_Internal_Sym sym;
bfd_vma value = syms[idx]->value; bfd_vma value = syms[idx]->value;
elf_symbol_type *type_ptr;
if (syms[idx]->flags & BSF_SECTION_SYM) if (syms[idx]->flags & BSF_SECTION_SYM)
/* Section symbols have no names. */ /* Section symbols have no names. */
@ -2279,21 +2282,21 @@ swap_out_syms (abfd)
return false; return false;
} }
type_ptr = elf_symbol_from (abfd, syms[idx]);
if (bfd_is_com_section (syms[idx]->section)) if (bfd_is_com_section (syms[idx]->section))
{ {
/* ELF common symbols put the alignment into the `value' field, /* ELF common symbols put the alignment into the `value' field,
and the size into the `size' field. This is backwards from and the size into the `size' field. This is backwards from
how BFD handles it, so reverse it here. */ how BFD handles it, so reverse it here. */
sym.st_size = value; sym.st_size = value;
/* Should retrieve this from somewhere... */ sym.st_value = type_ptr ? type_ptr->internal_elf_sym.st_value : 16;
sym.st_value = 16;
sym.st_shndx = elf_section_from_bfd_section (abfd, sym.st_shndx = elf_section_from_bfd_section (abfd,
syms[idx]->section); syms[idx]->section);
} }
else else
{ {
asection *sec = syms[idx]->section; asection *sec = syms[idx]->section;
elf_symbol_type *type_ptr;
int shndx; int shndx;
if (sec->output_section) if (sec->output_section)
@ -2303,7 +2306,6 @@ swap_out_syms (abfd)
} }
value += sec->vma; value += sec->vma;
sym.st_value = value; sym.st_value = value;
type_ptr = elf_symbol_from (abfd, syms[idx]);
sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0; sym.st_size = type_ptr ? type_ptr->internal_elf_sym.st_size : 0;
sym.st_shndx = shndx = elf_section_from_bfd_section (abfd, sec); sym.st_shndx = shndx = elf_section_from_bfd_section (abfd, sec);
if (shndx == -1) if (shndx == -1)
@ -2489,7 +2491,7 @@ NAME(bfd_elf,write_object_contents) (abfd)
} }
if (bed->elf_backend_final_write_processing) if (bed->elf_backend_final_write_processing)
(*bed->elf_backend_final_write_processing) (abfd); (*bed->elf_backend_final_write_processing) (abfd, NULL);
return write_shdrs_and_ehdr (abfd); return write_shdrs_and_ehdr (abfd);
} }
@ -5016,7 +5018,8 @@ struct elf_final_link_info
}; };
static boolean elf_link_output_sym static boolean elf_link_output_sym
PARAMS ((struct elf_final_link_info *, const char *, Elf_Internal_Sym *)); PARAMS ((struct elf_final_link_info *, const char *,
Elf_Internal_Sym *, asection *));
static boolean elf_link_flush_output_syms static boolean elf_link_flush_output_syms
PARAMS ((struct elf_final_link_info *)); PARAMS ((struct elf_final_link_info *));
static boolean elf_link_output_extsym static boolean elf_link_output_extsym
@ -5048,6 +5051,7 @@ elf_bfd_final_link (abfd, info)
unsigned int i; unsigned int i;
Elf_Internal_Shdr *symtab_hdr; Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Shdr *symstrtab_hdr; Elf_Internal_Shdr *symstrtab_hdr;
struct elf_backend_data *bed = get_elf_backend_data (abfd);
if (info->shared) if (info->shared)
{ {
@ -5254,7 +5258,8 @@ elf_bfd_final_link (abfd, info)
elfsym.st_info = 0; elfsym.st_info = 0;
elfsym.st_other = 0; elfsym.st_other = 0;
elfsym.st_shndx = SHN_UNDEF; elfsym.st_shndx = SHN_UNDEF;
if (! elf_link_output_sym (&finfo, (const char *) NULL, &elfsym)) if (! elf_link_output_sym (&finfo, (const char *) NULL,
&elfsym, bfd_und_section_ptr))
goto error_return; goto error_return;
#if 0 #if 0
@ -5268,7 +5273,8 @@ elf_bfd_final_link (abfd, info)
elfsym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE); elfsym.st_info = ELF_ST_INFO (STB_LOCAL, STT_FILE);
elfsym.st_other = 0; elfsym.st_other = 0;
elfsym.st_shndx = SHN_ABS; elfsym.st_shndx = SHN_ABS;
if (! elf_link_output_sym (&finfo, bfd_get_filename (abfd), &elfsym)) if (! elf_link_output_sym (&finfo, bfd_get_filename (abfd),
&elfsym, bfd_abs_section_ptr))
goto error_return; goto error_return;
#endif #endif
@ -5287,7 +5293,8 @@ elf_bfd_final_link (abfd, info)
if (! bfd_is_abs_section (o)) if (! bfd_is_abs_section (o))
o->target_index = abfd->symcount; o->target_index = abfd->symcount;
elfsym.st_shndx = i; elfsym.st_shndx = i;
if (! elf_link_output_sym (&finfo, (const char *) NULL, &elfsym)) if (! elf_link_output_sym (&finfo, (const char *) NULL,
&elfsym, o))
goto error_return; goto error_return;
} }
@ -5460,7 +5467,6 @@ elf_bfd_final_link (abfd, info)
if (dynobj != NULL) if (dynobj != NULL)
{ {
Elf_External_Dyn *dyncon, *dynconend; Elf_External_Dyn *dyncon, *dynconend;
struct elf_backend_data *bed;
/* Fix up .dynamic entries. */ /* Fix up .dynamic entries. */
o = bfd_get_section_by_name (dynobj, ".dynamic"); o = bfd_get_section_by_name (dynobj, ".dynamic");
@ -5534,7 +5540,6 @@ elf_bfd_final_link (abfd, info)
} }
} }
bed = get_elf_backend_data (abfd);
if (! (*bed->elf_backend_finish_dynamic_sections) (abfd, info)) if (! (*bed->elf_backend_finish_dynamic_sections) (abfd, info))
goto error_return; goto error_return;
@ -5554,6 +5559,10 @@ elf_bfd_final_link (abfd, info)
} }
} }
/* Now backend stuff. */
if (bed->elf_backend_final_write_processing)
(*bed->elf_backend_final_write_processing) (abfd, NULL);
if (finfo.contents != NULL) if (finfo.contents != NULL)
free (finfo.contents); free (finfo.contents);
if (finfo.external_relocs != NULL) if (finfo.external_relocs != NULL)
@ -5609,11 +5618,24 @@ elf_bfd_final_link (abfd, info)
/* Add a symbol to the output symbol table. */ /* Add a symbol to the output symbol table. */
static boolean static boolean
elf_link_output_sym (finfo, name, elfsym) elf_link_output_sym (finfo, name, elfsym, input_sec)
struct elf_final_link_info *finfo; struct elf_final_link_info *finfo;
const char *name; const char *name;
Elf_Internal_Sym *elfsym; Elf_Internal_Sym *elfsym;
asection *input_sec;
{ {
boolean (*output_symbol_hook) PARAMS ((bfd *,
struct bfd_link_info *info,
const char *,
Elf_Internal_Sym *,
asection *));
output_symbol_hook = get_elf_backend_data (finfo->output_bfd)->
elf_backend_link_output_symbol_hook;
if (! ((*output_symbol_hook)
(finfo->output_bfd, finfo->info, name, elfsym, input_sec)))
return false;
if (name == (const char *) NULL || *name == '\0') if (name == (const char *) NULL || *name == '\0')
elfsym->st_name = 0; elfsym->st_name = 0;
else else
@ -5674,6 +5696,7 @@ elf_link_output_extsym (h, data)
struct elf_final_link_info *finfo = (struct elf_final_link_info *) data; struct elf_final_link_info *finfo = (struct elf_final_link_info *) data;
boolean strip; boolean strip;
Elf_Internal_Sym sym; Elf_Internal_Sym sym;
asection *input_sec;
/* We don't want to output symbols that have never been mentioned by /* We don't want to output symbols that have never been mentioned by
a regular file, or that we have been told to strip. However, if a regular file, or that we have been told to strip. However, if
@ -5713,23 +5736,24 @@ elf_link_output_extsym (h, data)
return false; return false;
case bfd_link_hash_undefined: case bfd_link_hash_undefined:
input_sec = bfd_und_section_ptr;
sym.st_shndx = SHN_UNDEF; sym.st_shndx = SHN_UNDEF;
break; break;
case bfd_link_hash_weak: case bfd_link_hash_weak:
input_sec = bfd_und_section_ptr;
sym.st_shndx = SHN_UNDEF; sym.st_shndx = SHN_UNDEF;
sym.st_info = ELF_ST_INFO (STB_WEAK, h->type); sym.st_info = ELF_ST_INFO (STB_WEAK, h->type);
break; break;
case bfd_link_hash_defined: case bfd_link_hash_defined:
{ {
asection *sec;
sec = h->root.u.def.section; input_sec = h->root.u.def.section;
if (sec->output_section != NULL) if (input_sec->output_section != NULL)
{ {
sym.st_shndx = elf_section_from_bfd_section (finfo->output_bfd, sym.st_shndx = elf_section_from_bfd_section (finfo->output_bfd,
sec->output_section); input_sec->output_section);
if (sym.st_shndx == (unsigned short) -1) if (sym.st_shndx == (unsigned short) -1)
{ {
/* FIXME: No way to handle errors. */ /* FIXME: No way to handle errors. */
@ -5739,20 +5763,23 @@ elf_link_output_extsym (h, data)
/* ELF symbols in relocateable files are section relative, /* ELF symbols in relocateable files are section relative,
but in nonrelocateable files they are virtual but in nonrelocateable files they are virtual
addresses. */ addresses. */
sym.st_value = h->root.u.def.value + sec->output_offset; sym.st_value = h->root.u.def.value + input_sec->output_offset;
if (! finfo->info->relocateable) if (! finfo->info->relocateable)
sym.st_value += sec->output_section->vma; sym.st_value += input_sec->output_section->vma;
} }
else else
{ {
BFD_ASSERT (bfd_get_flavour (sec->owner) == bfd_target_elf_flavour BFD_ASSERT (bfd_get_flavour (input_sec->owner)
&& elf_elfheader (sec->owner)->e_type == ET_DYN); == bfd_target_elf_flavour
&& elf_elfheader (input_sec->owner)->e_type == ET_DYN);
sym.st_shndx = SHN_UNDEF; sym.st_shndx = SHN_UNDEF;
input_sec = bfd_und_section_ptr;
} }
} }
break; break;
case bfd_link_hash_common: case bfd_link_hash_common:
input_sec = bfd_com_section_ptr;
sym.st_shndx = SHN_COMMON; sym.st_shndx = SHN_COMMON;
if (h->align == 0) if (h->align == 0)
sym.st_value = 1; sym.st_value = 1;
@ -5812,7 +5839,7 @@ elf_link_output_extsym (h, data)
h->indx = finfo->output_bfd->symcount; h->indx = finfo->output_bfd->symcount;
if (! elf_link_output_sym (finfo, h->root.root.string, &sym)) if (! elf_link_output_sym (finfo, h->root.root.string, &sym, input_sec))
{ {
/* FIXME: No way to return error. */ /* FIXME: No way to return error. */
abort (); abort ();
@ -5835,7 +5862,7 @@ elf_link_input_bfd (finfo, input_bfd)
bfd *, asection *, bfd_byte *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Rela *,
Elf_Internal_Sym *, Elf_Internal_Sym *,
asection **)); asection **, char *));
bfd *output_bfd; bfd *output_bfd;
Elf_Internal_Shdr *symtab_hdr; Elf_Internal_Shdr *symtab_hdr;
size_t locsymcount; size_t locsymcount;
@ -5981,7 +6008,7 @@ elf_link_input_bfd (finfo, input_bfd)
if (! finfo->info->relocateable) if (! finfo->info->relocateable)
isym->st_value += isec->output_section->vma; isym->st_value += isec->output_section->vma;
if (! elf_link_output_sym (finfo, name, isym)) if (! elf_link_output_sym (finfo, name, isym, isec))
return false; return false;
/* Restore the old value for reloc handling. */ /* Restore the old value for reloc handling. */
@ -6081,7 +6108,8 @@ elf_link_input_bfd (finfo, input_bfd)
finfo->contents, finfo->contents,
finfo->internal_relocs, finfo->internal_relocs,
finfo->internal_syms, finfo->internal_syms,
finfo->sections)) finfo->sections,
finfo->symstrtab->tab))
return false; return false;
if (finfo->info->relocateable) if (finfo->info->relocateable)
@ -6197,7 +6225,7 @@ elf_link_input_bfd (finfo, input_bfd)
finfo->indices[r_symndx] = output_bfd->symcount; finfo->indices[r_symndx] = output_bfd->symcount;
if (! elf_link_output_sym (finfo, name, isym)) if (! elf_link_output_sym (finfo, name, isym, sec))
return false; return false;
} }