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* elfcode.h (elf_object_p): Rather than looking through an array

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of architectures, get the ELF EM_xxx code from the backend
	information.  Let the generic ELF target match any EM_xxx code not
	matched by another ELF target.  Call elf_backend_object_p to let
	the backend do more checks and set global information.
	* libelf.h (struct elf_backend_data): Added elf_machine_code and
	elf_backend_object_p fields.
	(struct bfd_elf_arch_map): Removed.
	(bfd_elf_arch_map, bfd_elf_arch_map_size): Don't declare.
	* elf32-target.h, elf64-target.h: Initialize elf_machine_code
	field with ELF_MACHINE_CODE.  Initialize elf_backend_object_p
	field with elf_backend_object_p (if it is defined).
	* elf32-gen.c, elf32-hppa.c, elf32-i386.c, elf32-i860.c,
	elf32-m68k.c, elf32-m88k.c, elf32-mips.c, elf32-sparc.c,
	elf64-gen.c (ELF_MACHINE_CODE): Defined.
	* elf32-mips.c: Include ecoffswap.h to get ECOFF swapping
	routines.
	(mips_elf_object_p): Set the right machine number.
	(mips_elf_ecoff_debug_swap): Defined.
	(elf_backend_object_p): Defined to be mips_elf_object_p.
	(elf_backend_ecoff_debug_swap): Defined to be
	mips_elf_ecoff_debug_swap.
	* elf.c (bfd_elf_arch_map, bfd_elf_arch_map_size): Removed.

	* elf32-mips.c (elf_mips_howto_table): Don't complain on overflow
	for R_MIPS_26.  Correct overflow detection requires matching the
	upper four bits of the destination against the PC.  From Ted Lemon
	<mellon@pepper.ncd.com>.

	* elf32-hppa.c (elf_hppa_reloc_type_lookup): Return type
	should point to const data.
This commit is contained in:
Ian Lance Taylor 1993-11-09 21:08:58 +00:00
parent e4d7f4c779
commit a5ccdad1fc
4 changed files with 39 additions and 20 deletions
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30
bfd/elf32-hppa.c
View file

@ -1585,7 +1585,7 @@ DEFUN (hppa_elf_reloc, (abfd, reloc_entry, symbol_in, data, input_section, outpu
}
static reloc_howto_type *
static const reloc_howto_type *
elf_hppa_reloc_type_lookup (arch, code)
bfd_arch_info_type *arch;
bfd_reloc_code_real_type code;
@ -2236,13 +2236,15 @@ hppa_elf_build_arg_reloc_stub (abfd, output_bfd, reloc_entry, stub_types)
if (!stub_desc->stub_contents)
{
stub_desc->allocated_size = STUB_BUFFER_INCR;
stub_desc->stub_contents = (char *) xmalloc (STUB_BUFFER_INCR);
stub_desc->stub_contents = (char *) bfd_xmalloc (STUB_BUFFER_INCR);
}
else if ((stub_desc->allocated_size - stub_desc->real_size) < STUB_MAX_SIZE)
{
stub_desc->allocated_size = stub_desc->allocated_size + STUB_BUFFER_INCR;
stub_desc->stub_contents = (char *) xrealloc (stub_desc->stub_contents,
stub_desc->allocated_size);
stub_desc->stub_contents = (char *) realloc (stub_desc->stub_contents,
stub_desc->allocated_size);
if (stub_desc->stub_contents == NULL)
abort ();
}
stub_desc->stub_secp = (int *) (stub_desc->stub_contents + stub_desc->real_size);
@ -3148,12 +3150,10 @@ hppa_elf_get_section_contents (abfd, section, location, offset, count)
be generated. */
else if (strcmp (section->name, ".hppa_symextn") == 0)
{
/* If this is the first time through and there are no output
sections, then read the contents of the symbol extension section
from disk. */
if (! symext_chain_built
|| ((section->output_section == NULL)
&& (abfd->direction == read_direction)))
/* If there are no output sections, then read the contents of the
symbol extension section from disk. */
if (section->output_section == NULL
&& abfd->direction == read_direction)
{
return bfd_generic_get_section_contents (abfd, section, location,
offset, count);
@ -3165,17 +3165,22 @@ hppa_elf_get_section_contents (abfd, section, location, offset, count)
else if (! symext_chain_built)
{
int i;
int *symtab_map = elf_sym_extra(section->output_section->owner);
int *symtab_map =
(int *) elf_sym_extra(section->output_section->owner);
for (i = 0; i < section->output_section->owner->symcount; i++ )
{
elf_hppa_tc_symbol(section->output_section->owner,
section->output_section->owner->outsymbols[i],
((elf_symbol_type *)
section->output_section->owner->outsymbols[i]),
symtab_map[i]);
}
symext_chain_built++;
elf_hppa_tc_make_sections (section->output_section->owner, NULL);
}
/* At this point we know that the symbol extension section has been
built. We just need to copy it into the user's buffer. */
if (count == 0)
return true;
@ -3501,6 +3506,7 @@ DEFUN (elf32_hppa_backend_section_from_bfd_section, (abfd, hdr, asect, retval),
#define TARGET_BIG_SYM bfd_elf32_hppa_vec
#define TARGET_BIG_NAME "elf32-hppa"
#define ELF_ARCH bfd_arch_hppa
#define ELF_MACHINE_CODE EM_HPPA
#define ELF_MAXPAGESIZE 0x1000
#include "elf32-target.h"

5
bfd/elf32-target.h
View file

@ -61,6 +61,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define ELF_MAXPAGESIZE 1
#endif
#ifndef elf_backend_object_p
#define elf_backend_object_p 0 /* elf_backend_object_p */
#endif
#ifndef elf_backend_symbol_processing
#define elf_backend_symbol_processing 0 /* elf_backend_symbol_processing */
#endif
@ -92,9 +95,11 @@ static CONST struct elf_backend_data elf32_bed =
#endif
0, /* elf_64_p */
ELF_ARCH, /* arch */
ELF_MACHINE_CODE, /* elf_machine_code */
ELF_MAXPAGESIZE, /* maxpagesize */
elf_info_to_howto, /* elf_info_to_howto */
elf_info_to_howto_rel, /* elf_info_to_howto_rel */
elf_backend_object_p, /* elf_backend_object_p */
elf_backend_symbol_processing, /* elf_backend_symbol_processing */
elf_backend_symbol_table_processing, /* elf_backend_symbol_table_processing */
elf_backend_section_processing, /* elf_backend_section_processing */

5
bfd/elf64-target.h
View file

@ -59,6 +59,9 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define ELF_MAXPAGESIZE 1
#endif
#ifndef elf_backend_object_p
#define elf_backend_object_p 0 /* elf_backend_object_p */
#endif
#ifndef elf_backend_symbol_processing
#define elf_backend_symbol_processing 0 /* elf_backend_symbol_processing */
#endif
@ -90,9 +93,11 @@ static CONST struct elf_backend_data elf64_bed =
#endif
1, /* elf_64_p */
ELF_ARCH, /* arch */
ELF_MACHINE_CODE, /* elf_machine_code */
ELF_MAXPAGESIZE, /* maxpagesize */
elf_info_to_howto, /* elf_info_to_howto */
elf_info_to_howto_rel, /* elf_info_to_howto_rel */
elf_backend_object_p, /* elf_backend_object_p */
elf_backend_symbol_processing, /* elf_backend_symbol_processing */
elf_backend_symbol_table_processing, /* elf_backend_symbol_table_processing */
elf_backend_section_processing, /* elf_backend_section_processing */

19
bfd/libelf.h
View file

@ -77,6 +77,9 @@ struct elf_backend_data
/* The architecture for this backend. */
enum bfd_architecture arch;
/* The ELF machine code (EM_xxxx) for this backend. */
int elf_machine_code;
/* The maximum page size for this backend. */
bfd_vma maxpagesize;
@ -93,6 +96,14 @@ struct elf_backend_data
/* The remaining functions are hooks which are called only if they
are not NULL. */
/* A function to permit a backend specific check on whether a
particular BFD format is relevant for an object file, and to
permit the backend to set any global information it wishes. When
this is called elf_elfheader is set, but anything else should be
used with caution. If this returns false, the check_format
routine will return a wrong_format error. */
boolean (*elf_backend_object_p) PARAMS ((bfd *));
/* A function to do additional symbol processing when reading the
ELF symbol table. This is where any processor-specific special
section indices are handled. */
@ -142,14 +153,6 @@ struct elf_sym_extra
typedef struct elf_sym_extra Elf_Sym_Extra;
struct bfd_elf_arch_map {
enum bfd_architecture bfd_arch;
int elf_arch;
};
extern const struct bfd_elf_arch_map bfd_elf_arch_map[];
extern const int bfd_elf_arch_map_size;
struct bfd_elf_section_data {
Elf_Internal_Shdr this_hdr;
Elf_Internal_Shdr rel_hdr;