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Initialise EI_OSABI and EI_ABIVERSION fields of e_ident array.

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Add ability for backends to process program and section headers after they
have been created.
This commit is contained in:
Nick Clifton 1999-05-28 13:24:33 +00:00
parent 229cf42b33
commit e6c51ed4df
4 changed files with 31 additions and 0 deletions
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14
bfd/ChangeLog
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@ -1,3 +1,17 @@
1999-05-28 Nick Clifton <nickc@cygnus.com>
* elf-bfd.h (struct elf_backend_data): Add new field:
elf_backend_post_process_headers.
* elfxx-target.h (elf_backend_post_process_headers): Define to
NULL if not already defined.
(elfNN_bed): Initialise elf_backend_post_process_headers field.
* elf.c (prep_headers): Set the EI_OSABI and EI_ABIVERSION fields
to zero.
(_bfd_elf_compute_section_file_positions): Call
elf_backend_post_process_headers if defined.
1999-05-28 Ian Lance Taylor <ian@zembu.com>
* configure.in: Check whether getuid and getgid exist.

6
bfd/elf-bfd.h
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@ -515,6 +515,12 @@ struct elf_backend_data
PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *o,
const Elf_Internal_Rela *relocs));
/* This function, if defined, is called after the ELF headers have
been created. This allows for things like the OS and ABI versions
to be changed. */
void (*elf_backend_post_process_headers)
PARAMS ((bfd *, struct bfd_link_info *));
/* The swapping table to use when dealing with ECOFF information.
Used for the MIPS ELF .mdebug section. */
const struct ecoff_debug_swap *elf_backend_ecoff_debug_swap;

7
bfd/elf.c
View file

@ -2011,6 +2011,10 @@ _bfd_elf_compute_section_file_positions (abfd, link_info)
if (! prep_headers (abfd))
return false;
/* Post process the headers if necessary. */
if (bed->elf_backend_post_process_headers)
(*bed->elf_backend_post_process_headers) (abfd, link_info);
failed = false;
bfd_map_over_sections (abfd, elf_fake_sections, &failed);
if (failed)
@ -3042,6 +3046,9 @@ prep_headers (abfd)
bfd_big_endian (abfd) ? ELFDATA2MSB : ELFDATA2LSB;
i_ehdrp->e_ident[EI_VERSION] = bed->s->ev_current;
i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_SYSV;
i_ehdrp->e_ident[EI_ABIVERSION] = 0;
for (count = EI_PAD; count < EI_NIDENT; count++)
i_ehdrp->e_ident[count] = 0;

4
bfd/elfxx-target.h
View file

@ -290,6 +290,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef elf_backend_plt_header_size
#define elf_backend_plt_header_size 0
#endif
#ifndef elf_backend_post_process_headers
#define elf_backend_post_process_headers NULL
#endif
#ifndef ELF_MACHINE_ALT1
#define ELF_MACHINE_ALT1 0
@ -344,6 +347,7 @@ static CONST struct elf_backend_data elfNN_bed =
elf_backend_modify_segment_map,
elf_backend_gc_mark_hook,
elf_backend_gc_sweep_hook,
elf_backend_post_process_headers,
elf_backend_ecoff_debug_swap,
ELF_MACHINE_ALT1,
ELF_MACHINE_ALT2,