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* archures (bfd_mach_arc_base): #define.

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(bfd_mach_arc_host, bfd_mach_arc_graphics, bfd_mach_arc_audio): Ditto.
	* cpu-arc.c (arch_info_struct): Define entries for each cpu variant.
	(bfd_arc_arch): Link each one in.
	(arc_get_mach): New function.
	* elf32-arc.c (arc_info_to_howto_rel): Renamed from arc_info_to_howto.
	(elf_info_to_howto_rel): Update.
	(arc_elf_object_p, arc_elf_final_write_processing): New functions.
	(elf_backend_object_p): Define.
	(elf_backend_final_write_processing): Define.
	(USE_REL): Define.
This commit is contained in:
David Edelsohn 1995-02-10 01:40:36 +00:00
parent 10bf6ddf08
commit 866da18e1f
2 changed files with 110 additions and 14 deletions
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16
bfd/ChangeLog
View file

@ -1,3 +1,19 @@
start-sanitize-arc
Thu Feb 9 17:31:40 1995 Doug Evans <dje@canuck.cygnus.com>
* archures (bfd_mach_arc_base): #define.
(bfd_mach_arc_host, bfd_mach_arc_graphics, bfd_mach_arc_audio): Ditto.
* cpu-arc.c (arch_info_struct): Define entries for each cpu variant.
(bfd_arc_arch): Link each one in.
(arc_get_mach): New function.
* elf32-arc.c (arc_info_to_howto_rel): Renamed from arc_info_to_howto.
(elf_info_to_howto_rel): Update.
(arc_elf_object_p, arc_elf_final_write_processing): New functions.
(elf_backend_object_p): Define.
(elf_backend_final_write_processing): Define.
(USE_REL): Define.
end-sanitize-arc
Thu Feb 9 18:36:52 1995 Ken Raeburn <raeburn@cujo.cygnus.com>
* Makefile.in (BFD32_BACKENDS): Add i386msdos.o.

108
bfd/elf32-arc.c
View file

@ -1,5 +1,5 @@
/* ARC-specific support for 32-bit ELF
Copyright (C) 1994 Free Software Foundation, Inc.
Copyright (C) 1994, 1995 Free Software Foundation, Inc.
Contributed by Doug Evans (dje@cygnus.com).
This file is part of BFD, the Binary File Descriptor library.
@ -22,13 +22,20 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "sysdep.h"
#include "libbfd.h"
#include "libelf.h"
#include "elf/arc.h"
static bfd_reloc_status_type arc_elf_unsupported_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static const struct reloc_howto_struct *bfd_elf32_bfd_reloc_type_lookup
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
PARAMS ((bfd *abfd, bfd_reloc_code_real_type code));
static void arc_info_to_howto
PARAMS ((bfd *abfd, arelent *cache_ptr, Elf32_Internal_Rela *dst));
static void arc_info_to_howto_rel
PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
static boolean arc_elf_object_p PARAMS ((bfd *));
static void arc_elf_final_write_processing PARAMS ((bfd *, boolean));
/* Try to minimize the amount of space occupied by relocation tables
on the ROM. */
#define USE_REL
enum reloc_type
{
@ -103,7 +110,7 @@ arc_elf_unsupported_reloc (abfd, reloc_entry, symbol, data, input_section,
abort ();
}
/* Map BFD reloc types to PowerPC ELF reloc types. */
/* Map BFD reloc types to ARC ELF reloc types. */
struct arc_reloc_map
{
@ -119,7 +126,7 @@ static const struct arc_reloc_map arc_reloc_map[] =
{ BFD_RELOC_ARC_B22_PCREL, R_ARC_B22_PCREL },
};
static const struct reloc_howto_struct *
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
@ -140,20 +147,93 @@ bfd_elf32_bfd_reloc_type_lookup (abfd, code)
/* Set the howto pointer for an ARC ELF reloc. */
static void
arc_info_to_howto (abfd, cache_ptr, dst)
arc_info_to_howto_rel (abfd, cache_ptr, dst)
bfd *abfd;
arelent *cache_ptr;
Elf32_Internal_Rela *dst;
Elf32_Internal_Rel *dst;
{
BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_ARC_max);
cache_ptr->howto = &elf_arc_howto_table[ELF32_R_TYPE (dst->r_info)];
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
BFD_ASSERT (r_type < (unsigned int) R_ARC_max);
cache_ptr->howto = &elf_arc_howto_table[r_type];
}
#define TARGET_BIG_SYM bfd_elf32_arc_vec
#define TARGET_BIG_NAME "elf32-arc"
/* Set the right machine number for an ARC ELF file. */
static boolean
arc_elf_object_p (abfd)
bfd *abfd;
{
int mach;
unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_CPU;
switch (arch)
{
case E_ARC_CPU_BASE:
mach = bfd_mach_arc_base;
break;
case E_ARC_CPU_HOST:
mach = bfd_mach_arc_host;
break;
case E_ARC_CPU_GRAPHICS:
mach = bfd_mach_arc_graphics;
break;
case E_ARC_CPU_AUDIO:
mach = bfd_mach_arc_audio;
break;
default:
/* Unknown cpu type. ??? What to do? */
return false;
}
(void) bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach);
return true;
}
/* The final processing done just before writing out an ARC ELF object file.
This gets the ARC architecture right based on the machine number. */
static void
arc_elf_final_write_processing (abfd, linker)
bfd *abfd;
boolean linker;
{
int mach;
unsigned long val;
switch (mach = bfd_get_mach (abfd))
{
case bfd_mach_arc_base:
val = E_ARC_CPU_BASE;
break;
case bfd_mach_arc_host:
val = E_ARC_CPU_HOST;
break;
case bfd_mach_arc_graphics:
val = E_ARC_CPU_GRAPHICS;
break;
case bfd_mach_arc_audio:
val = E_ARC_CPU_AUDIO;
break;
default:
return;
}
elf_elfheader (abfd)->e_flags &=~ EF_ARC_CPU;
elf_elfheader (abfd)->e_flags |= val;
}
#define TARGET_LITTLE_SYM bfd_elf32_arc_vec
#define TARGET_LITTLE_NAME "elf32-arc"
#define ELF_ARCH bfd_arch_arc
#define ELF_MACHINE_CODE EM_CYGNUS_ARC
#define ELF_MAXPAGESIZE 0x10000
#define elf_info_to_howto arc_info_to_howto
#define ELF_MAXPAGESIZE 0x1000
#define elf_info_to_howto 0
#define elf_info_to_howto_rel arc_info_to_howto_rel
#define elf_backend_object_p arc_elf_object_p
#define elf_backend_final_write_processing \
arc_elf_final_write_processing
#include "elf32-target.h"