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* Makefile.am (ALL_MACHINES): Add ms1 support.

Browse Source 
(ALL_MACHINES_CFILES): Same.
	(BFD32_BACKENDS): Same.
	(BFD32_BACKENDS_CFILES): Same.

	* Makefile.in: Regenerate.

	* archures.c (bfd_architecture): Add ms1 entries.
	Externalize bfd_ms1_arch.
	(bfd_archures_list): Add bfd_ms1_arch.

	* bfd-in2.h: Regenerate.

	* cpu-ms1.c: New file.

	* elf32-ms1.c: New file.

	* targets.c: Define extern of bfd_elf32_ms1_vec.
	Add bfd_elf32_ms1_vec to _bfd_target_vector.

	* configure.in: Add bfd_elf32_ms1_vec case.

	* configure: Regenerate.

	* config.bfd: Add ms1-*-elf to table.
This commit is contained in:
Aldy Hernandez
2005-06-07 21:07:32 +00:00
parent 0bf6074576
commit de33e64021
11 changed files with 752 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
bfd/ChangeLog
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@ -1,3 +1,33 @@
2005-06-07 Aldy Hernandez <aldyh@redhat.com>
Michael Snyder <msnyder@redhat.com>
Stan Cox <scox@redhat.com>
* Makefile.am (ALL_MACHINES): Add ms1 support.
(ALL_MACHINES_CFILES): Same.
(BFD32_BACKENDS): Same.
(BFD32_BACKENDS_CFILES): Same.
* Makefile.in: Regenerate.
* archures.c (bfd_architecture): Add ms1 entries.
Externalize bfd_ms1_arch.
(bfd_archures_list): Add bfd_ms1_arch.
* bfd-in2.h: Regenerate.
* cpu-ms1.c: New file.
* elf32-ms1.c: New file.
* targets.c: Define extern of bfd_elf32_ms1_vec.
Add bfd_elf32_ms1_vec to _bfd_target_vector.
* configure.in: Add bfd_elf32_ms1_vec case.
* configure: Regenerate.
* config.bfd: Add ms1-*-elf to table.
2005-06-07 Zack Weinberg <zack@codesourcery.com>
* coff-i386.c: Change md_apply_fix3 to md_apply_fix in comment.

8
bfd/Makefile.am
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@ -88,6 +88,7 @@ ALL_MACHINES = \
cpu-mcore.lo \
cpu-mips.lo \
cpu-mmix.lo \
cpu-ms1.lo \
cpu-msp430.lo \
cpu-or32.lo \
cpu-ns32k.lo \
@ -146,6 +147,7 @@ ALL_MACHINES_CFILES = \
cpu-mcore.c \
cpu-mips.c \
cpu-mmix.c \
cpu-ms1.c \
cpu-msp430.c \
cpu-or32.c \
cpu-ns32k.c \
@ -251,6 +253,7 @@ BFD32_BACKENDS = \
elf32-mcore.lo \
elfxx-mips.lo \
elf32-mips.lo \
elf32-ms1.lo \
elf32-msp430.lo \
elf32-openrisc.lo \
elf32-or32.lo \
@ -421,6 +424,7 @@ BFD32_BACKENDS_CFILES = \
elf32-mcore.c \
elfxx-mips.c \
elf32-mips.c \
elf32-ms1.c \
elf32-msp430.c \
elf32-openrisc.c \
elf32-or32.c \
@ -1333,6 +1337,10 @@ elf32-mips.lo: elf32-mips.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h \
$(INCDIR)/coff/symconst.h $(INCDIR)/coff/internal.h \
$(INCDIR)/coff/ecoff.h $(INCDIR)/coff/mips.h $(INCDIR)/coff/external.h \
ecoffswap.h elf32-target.h
elf32-ms1.lo: elf32-ms1.c elf-bfd.h $(INCDIR)/elf/common.h \
$(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h \
$(INCDIR)/elf/ms1.h $(INCDIR)/elf/reloc-macros.h \
elf32-target.h
elf32-msp430.lo: elf32-msp430.c $(INCDIR)/filenames.h \
$(INCDIR)/libiberty.h $(INCDIR)/hashtab.h elf-bfd.h \
$(INCDIR)/elf/common.h $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h \

8
bfd/Makefile.in
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@ -325,6 +325,7 @@ ALL_MACHINES = \
cpu-mcore.lo \
cpu-mips.lo \
cpu-mmix.lo \
cpu-ms1.lo \
cpu-msp430.lo \
cpu-or32.lo \
cpu-ns32k.lo \
@ -383,6 +384,7 @@ ALL_MACHINES_CFILES = \
cpu-mcore.c \
cpu-mips.c \
cpu-mmix.c \
cpu-ms1.c \
cpu-msp430.c \
cpu-or32.c \
cpu-ns32k.c \
@ -489,6 +491,7 @@ BFD32_BACKENDS = \
elf32-mcore.lo \
elfxx-mips.lo \
elf32-mips.lo \
elf32-ms1.lo \
elf32-msp430.lo \
elf32-openrisc.lo \
elf32-or32.lo \
@ -659,6 +662,7 @@ BFD32_BACKENDS_CFILES = \
elf32-mcore.c \
elfxx-mips.c \
elf32-mips.c \
elf32-ms1.c \
elf32-msp430.c \
elf32-openrisc.c \
elf32-or32.c \
@ -1900,6 +1904,10 @@ elf32-mips.lo: elf32-mips.c $(INCDIR)/filenames.h $(INCDIR)/hashtab.h \
$(INCDIR)/coff/symconst.h $(INCDIR)/coff/internal.h \
$(INCDIR)/coff/ecoff.h $(INCDIR)/coff/mips.h $(INCDIR)/coff/external.h \
ecoffswap.h elf32-target.h
elf32-ms1.lo: elf32-ms1.c elf-bfd.h $(INCDIR)/elf/common.h \
$(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h $(INCDIR)/bfdlink.h \
$(INCDIR)/elf/ms1.h $(INCDIR)/elf/reloc-macros.h \
elf32-target.h
elf32-msp430.lo: elf32-msp430.c $(INCDIR)/filenames.h \
$(INCDIR)/libiberty.h $(INCDIR)/hashtab.h elf-bfd.h \
$(INCDIR)/elf/common.h $(INCDIR)/elf/internal.h $(INCDIR)/elf/external.h \

5
bfd/archures.c
View File

@ -316,6 +316,9 @@ DESCRIPTION
. bfd_arch_iq2000, {* Vitesse IQ2000. *}
.#define bfd_mach_iq2000 1
.#define bfd_mach_iq10 2
. bfd_arch_ms1,
.#define bfd_mach_ms1 1
.#define bfd_mach_mrisc2 2
. bfd_arch_pj,
. bfd_arch_avr, {* Atmel AVR microcontrollers. *}
.#define bfd_mach_avr1 1
@ -453,6 +456,7 @@ extern const bfd_arch_info_type bfd_w65_arch;
extern const bfd_arch_info_type bfd_xstormy16_arch;
extern const bfd_arch_info_type bfd_xtensa_arch;
extern const bfd_arch_info_type bfd_z8k_arch;
extern const bfd_arch_info_type bfd_ms1_arch;
static const bfd_arch_info_type * const bfd_archures_list[] =
{
@ -493,6 +497,7 @@ static const bfd_arch_info_type * const bfd_archures_list[] =
&bfd_mmix_arch,
&bfd_mn10200_arch,
&bfd_mn10300_arch,
&bfd_ms1_arch,
&bfd_msp430_arch,
&bfd_ns32k_arch,
&bfd_openrisc_arch,

3
bfd/bfd-in2.h
View File

@ -1851,6 +1851,9 @@ enum bfd_architecture
bfd_arch_iq2000, /* Vitesse IQ2000. */
#define bfd_mach_iq2000 1
#define bfd_mach_iq10 2
bfd_arch_ms1,
#define bfd_mach_ms1 1
#define bfd_mach_mrisc2 2
bfd_arch_pj,
bfd_arch_avr, /* Atmel AVR microcontrollers. */
#define bfd_mach_avr1 1

4
bfd/config.bfd
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@ -920,6 +920,10 @@ case "${targ}" in
targ_underscore=yes
;;
ms1-*-elf)
targ_defvec=bfd_elf32_ms1_vec
;;
msp430-*-*)
targ_defvec=bfd_elf32_msp430_vec
;;

1
bfd/configure vendored
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@ -13015,6 +13015,7 @@ do
bfd_elf32_mcore_little_vec) tb="$tb elf32-mcore.lo elf32.lo $elf" ;;
bfd_elf32_mn10200_vec) tb="$tb elf-m10200.lo elf32.lo $elf" ;;
bfd_elf32_mn10300_vec) tb="$tb elf-m10300.lo elf32.lo $elf" ;;
bfd_elf32_ms1_vec) tb="$tb elf32-ms1.lo elf32.lo $elf" ;;
bfd_elf32_msp430_vec) tb="$tb elf32-msp430.lo elf32.lo $elf" ;;
bfd_elf32_nbigmips_vec) tb="$tb elfn32-mips.lo elfxx-mips.lo elf32.lo $elf ecofflink.lo"; target_size=64 ;;
bfd_elf32_nlittlemips_vec) tb="$tb elfn32-mips.lo elfxx-mips.lo elf32.lo $elf ecofflink.lo"; target_size=64 ;;

1
bfd/configure.in
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@ -636,6 +636,7 @@ do
bfd_elf32_mcore_little_vec) tb="$tb elf32-mcore.lo elf32.lo $elf" ;;
bfd_elf32_mn10200_vec) tb="$tb elf-m10200.lo elf32.lo $elf" ;;
bfd_elf32_mn10300_vec) tb="$tb elf-m10300.lo elf32.lo $elf" ;;
bfd_elf32_ms1_vec) tb="$tb elf32-ms1.lo elf32.lo $elf" ;;
bfd_elf32_msp430_vec) tb="$tb elf32-msp430.lo elf32.lo $elf" ;;
bfd_elf32_nbigmips_vec) tb="$tb elfn32-mips.lo elfxx-mips.lo elf32.lo $elf ecofflink.lo"; target_size=64 ;;
bfd_elf32_nlittlemips_vec) tb="$tb elfn32-mips.lo elfxx-mips.lo elf32.lo $elf ecofflink.lo"; target_size=64 ;;

57
bfd/cpu-ms1.c Normal file
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@ -0,0 +1,57 @@
/* BFD support for the Morpho Technologies MS1 processor.
Copyright (C) 2001, 2002, 2005 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
const bfd_arch_info_type arch_info_struct[] =
{
{
32, /* Bits per word - not really true. */
32, /* Bits per address. */
8, /* Bits per byte. */
bfd_arch_ms1, /* Architecture. */
bfd_mach_mrisc2, /* Machine. */
"ms1", /* Architecture name. */
"ms1-003", /* Printable name. */
1, /* Section align power. */
FALSE, /* The default ? */
bfd_default_compatible, /* Architecture comparison fn. */
bfd_default_scan, /* String to architecture convert fn. */
NULL /* Next in list. */
}
};
const bfd_arch_info_type bfd_ms1_arch =
{
32, /* Bits per word - not really true. */
32, /* Bits per address. */
8, /* Bits per byte. */
bfd_arch_ms1, /* Architecture. */
bfd_mach_ms1, /* Machine. */
"ms1", /* Architecture name. */
"ms1", /* Printable name. */
1, /* Section align power. */
TRUE, /* The default ? */
bfd_default_compatible, /* Architecture comparison fn. */
bfd_default_scan, /* String to architecture convert fn. */
&arch_info_struct[0] /* Next in list. */
};

633
bfd/elf32-ms1.c Normal file
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@ -0,0 +1,633 @@
/* Morpho Technologies MS1 specific support for 32-bit ELF
Copyright 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/ms1.h"
/* Prototypes. */
static reloc_howto_type * ms1_reloc_type_lookup
(bfd *, bfd_reloc_code_real_type);
static void ms1_info_to_howto_rela
(bfd *, arelent *, Elf_Internal_Rela *);
static bfd_reloc_status_type ms1_elf_relocate_hi16
(bfd *, Elf_Internal_Rela *, bfd_byte *, bfd_vma);
static bfd_reloc_status_type ms1_final_link_relocate
(reloc_howto_type *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, bfd_vma);
static bfd_boolean ms1_elf_relocate_section
(bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **);
/* Relocation tables. */
static reloc_howto_type ms1_elf_howto_table [] =
{
/* This reloc does nothing. */
HOWTO (R_MS1_NONE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MS1_NONE", /* name */
FALSE, /* partial_inplace */
0 , /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 16 bit absolute relocation. */
HOWTO (R_MS1_16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MS1_16", /* name */
FALSE, /* partial_inplace */
0 , /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 32 bit absolute relocation. */
HOWTO (R_MS1_32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MS1_32", /* name */
FALSE, /* partial_inplace */
0 , /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 32 bit pc-relative relocation. */
HOWTO (R_MS1_32_PCREL, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MS1_32_PCREL", /* name */
FALSE, /* partial_inplace */
0 , /* src_mask */
0xffffffff, /* dst_mask */
TRUE), /* pcrel_offset */
/* A 16 bit pc-relative relocation. */
HOWTO (R_MS1_PC16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MS1_PC16", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0xffff, /* dst_mask */
TRUE), /* pcrel_offset */
/* high 16 bits of symbol value. */
HOWTO (R_MS1_HI16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MS1_HI16", /* name */
FALSE, /* partial_inplace */
0xffff0000, /* src_mask */
0xffff0000, /* dst_mask */
FALSE), /* pcrel_offset */
/* Low 16 bits of symbol value. */
HOWTO (R_MS1_LO16, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_MS1_LO16", /* name */
FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
};
/* Map BFD reloc types to MS1 ELF reloc types. */
static reloc_howto_type *
ms1_reloc_type_lookup
(bfd * abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
/* Note that the ms1_elf_howto_table is indxed by the R_
constants. Thus, the order that the howto records appear in the
table *must* match the order of the relocation types defined in
include/elf/ms1.h. */
switch (code)
{
case BFD_RELOC_NONE:
return &ms1_elf_howto_table[ (int) R_MS1_NONE];
case BFD_RELOC_16:
return &ms1_elf_howto_table[ (int) R_MS1_16];
case BFD_RELOC_32:
return &ms1_elf_howto_table[ (int) R_MS1_32];
case BFD_RELOC_32_PCREL:
return &ms1_elf_howto_table[ (int) R_MS1_32_PCREL];
case BFD_RELOC_16_PCREL:
return &ms1_elf_howto_table[ (int) R_MS1_PC16];
case BFD_RELOC_HI16:
return &ms1_elf_howto_table[ (int) R_MS1_HI16];
case BFD_RELOC_LO16:
return &ms1_elf_howto_table[ (int) R_MS1_LO16];
default:
/* Pacify gcc -Wall. */
return NULL;
}
return NULL;
}
bfd_reloc_status_type
ms1_elf_relocate_hi16
(bfd * input_bfd,
Elf_Internal_Rela * relhi,
bfd_byte * contents,
bfd_vma value)
{
bfd_vma insn;
insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
value += relhi->r_addend;
value >>= 16;
insn = ((insn & ~0xFFFF) | value);
bfd_put_32 (input_bfd, insn, contents + relhi->r_offset);
return bfd_reloc_ok;
}
/* XXX: The following code is the result of a cut&paste. This unfortunate
practice is very widespread in the various target back-end files. */
/* Set the howto pointer for a MS1 ELF reloc. */
static void
ms1_info_to_howto_rela
(bfd * abfd ATTRIBUTE_UNUSED,
arelent * cache_ptr,
Elf_Internal_Rela * dst)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
cache_ptr->howto = & ms1_elf_howto_table [r_type];
}
/* Perform a single relocation. By default we use the standard BFD
routines. */
static bfd_reloc_status_type
ms1_final_link_relocate
(reloc_howto_type * howto,
bfd * input_bfd,
asection * input_section,
bfd_byte * contents,
Elf_Internal_Rela * rel,
bfd_vma relocation)
{
return _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
relocation, rel->r_addend);
}
/* Relocate a MS1 ELF section.
There is some attempt to make this function usable for many architectures,
both USE_REL and USE_RELA ['twould be nice if such a critter existed],
if only to serve as a learning tool.
The RELOCATE_SECTION function is called by the new ELF backend linker
to handle the relocations for a section.
The relocs are always passed as Rela structures; if the section
actually uses Rel structures, the r_addend field will always be
zero.
This function is responsible for adjusting the section contents as
necessary, and (if using Rela relocs and generating a relocatable
output file) adjusting the reloc addend as necessary.
This function does not have to worry about setting the reloc
address or the reloc symbol index.
LOCAL_SYMS is a pointer to the swapped in local symbols.
LOCAL_SECTIONS is an array giving the section in the input file
corresponding to the st_shndx field of each local symbol.
The global hash table entry for the global symbols can be found
via elf_sym_hashes (input_bfd).
When generating relocatable output, this function must handle
STB_LOCAL/STT_SECTION symbols specially. The output symbol is
going to be the section symbol corresponding to the output
section, which means that the addend must be adjusted
accordingly. */
static bfd_boolean
ms1_elf_relocate_section
(bfd * output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info * info,
bfd * input_bfd,
asection * input_section,
bfd_byte * contents,
Elf_Internal_Rela * relocs,
Elf_Internal_Sym * local_syms,
asection ** local_sections)
{
Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
Elf_Internal_Rela * rel;
Elf_Internal_Rela * relend;
symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (input_bfd);
relend = relocs + input_section->reloc_count;
for (rel = relocs; rel < relend; rel ++)
{
reloc_howto_type * howto;
unsigned long r_symndx;
Elf_Internal_Sym * sym;
asection * sec;
struct elf_link_hash_entry * h;
bfd_vma relocation;
bfd_reloc_status_type r;
const char * name = NULL;
int r_type;
r_type = ELF32_R_TYPE (rel->r_info);
r_symndx = ELF32_R_SYM (rel->r_info);
/* This is a final link. */
howto = ms1_elf_howto_table + ELF32_R_TYPE (rel->r_info);
h = NULL;
sym = NULL;
sec = NULL;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
sec = local_sections [r_symndx];
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
name = bfd_elf_string_from_elf_section
(input_bfd, symtab_hdr->sh_link, sym->st_name);
name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
}
else
{
bfd_boolean unresolved_reloc;
bfd_boolean warned;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
unresolved_reloc, warned);
name = h->root.root.string;
}
/* Finally, the sole MS1-specific part. */
switch (r_type)
{
case R_MS1_HI16:
r = ms1_elf_relocate_hi16 (input_bfd, rel, contents, relocation);
break;
default:
r = ms1_final_link_relocate (howto, input_bfd, input_section,
contents, rel, relocation);
break;
}
if (r != bfd_reloc_ok)
{
const char * msg = (const char *) NULL;
switch (r)
{
case bfd_reloc_overflow:
r = info->callbacks->reloc_overflow
(info, (h ? &h->root : NULL), name, howto->name, (bfd_vma) 0,
input_bfd, input_section, rel->r_offset);
break;
case bfd_reloc_undefined:
r = info->callbacks->undefined_symbol
(info, name, input_bfd, input_section, rel->r_offset, TRUE);
break;
case bfd_reloc_outofrange:
msg = _("internal error: out of range error");
break;
case bfd_reloc_dangerous:
msg = _("internal error: dangerous relocation");
break;
default:
msg = _("internal error: unknown error");
break;
}
if (msg)
r = info->callbacks->warning
(info, msg, name, input_bfd, input_section, rel->r_offset);
if (! r)
return FALSE;
}
}
return TRUE;
}
/* Return the section that should be marked against GC for a given
relocation. */
static asection *
ms1_elf_gc_mark_hook
(asection * sec,
struct bfd_link_info * info ATTRIBUTE_UNUSED,
Elf_Internal_Rela * rel ATTRIBUTE_UNUSED,
struct elf_link_hash_entry * h,
Elf_Internal_Sym * sym)
{
if (h != NULL)
{
switch (h->root.type)
{
case bfd_link_hash_defined:
case bfd_link_hash_defweak:
return h->root.u.def.section;
case bfd_link_hash_common:
return h->root.u.c.p->section;
default:
break;
}
}
else
{
if (!(elf_bad_symtab (sec->owner)
&& ELF_ST_BIND (sym->st_info) != STB_LOCAL)
&& ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
&& sym->st_shndx != SHN_COMMON))
return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
}
return NULL;
}
/* Update the got entry reference counts for the section being
removed. */
static bfd_boolean
ms1_elf_gc_sweep_hook
(bfd * abfd ATTRIBUTE_UNUSED,
struct bfd_link_info * info ATTRIBUTE_UNUSED,
asection * sec ATTRIBUTE_UNUSED,
const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED)
{
return TRUE;
}
/* Look through the relocs for a section during the first phase.
Since we don't do .gots or .plts, we just need to consider the
virtual table relocs for gc. */
static bfd_boolean
ms1_elf_check_relocs
(bfd * abfd,
struct bfd_link_info * info,
asection * sec,
const Elf_Internal_Rela * relocs)
{
Elf_Internal_Shdr * symtab_hdr;
struct elf_link_hash_entry ** sym_hashes;
struct elf_link_hash_entry ** sym_hashes_end;
const Elf_Internal_Rela * rel;
const Elf_Internal_Rela * rel_end;
if (info->relocatable)
return TRUE;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
sym_hashes = elf_sym_hashes (abfd);
sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym);
if (!elf_bad_symtab (abfd))
sym_hashes_end -= symtab_hdr->sh_info;
rel_end = relocs + sec->reloc_count;
for (rel = relocs; rel < rel_end; rel++)
{
struct elf_link_hash_entry *h;
unsigned long r_symndx;
r_symndx = ELF32_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
h = NULL;
else
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
}
return TRUE;
}
/* Return the MACH for an e_flags value. */
static int
elf32_ms1_machine (bfd *abfd)
{
switch (elf_elfheader (abfd)->e_flags & EF_MS1_CPU_MASK)
{
case EF_MS1_CPU_MRISC: return bfd_mach_ms1;
case EF_MS1_CPU_MRISC2: return bfd_mach_mrisc2;
}
return bfd_mach_ms1;
}
static bfd_boolean
ms1_elf_object_p (bfd * abfd)
{
bfd_default_set_arch_mach (abfd, bfd_arch_ms1, elf32_ms1_machine (abfd));
return TRUE;
}
/* Function to set the ELF flag bits. */
static bfd_boolean
ms1_elf_set_private_flags (bfd * abfd,
flagword flags)
{
elf_elfheader (abfd)->e_flags = flags;
elf_flags_init (abfd) = TRUE;
return TRUE;
}
static bfd_boolean
ms1_elf_copy_private_bfd_data (bfd * ibfd, bfd * obfd)
{
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
BFD_ASSERT (!elf_flags_init (obfd)
|| elf_elfheader (obfd)->e_flags == elf_elfheader (ibfd)->e_flags);
elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags;
elf_flags_init (obfd) = TRUE;
return TRUE;
}
/* Merge backend specific data from an object file to the output
object file when linking. */
static bfd_boolean
ms1_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd)
{
flagword old_flags, new_flags;
bfd_boolean error = FALSE;
static bfd * last_ibfd = 0;
/* Check if we have the same endianess. */
if (_bfd_generic_verify_endian_match (ibfd, obfd) == FALSE)
return FALSE;
/* If they're not both ms1, then merging is meaningless, so just
don't do it. */
if (strcmp (ibfd->arch_info->arch_name, "ms1") != 0)
return TRUE;
if (strcmp (obfd->arch_info->arch_name, "ms1") != 0)
return TRUE;
new_flags = elf_elfheader (ibfd)->e_flags;
old_flags = elf_elfheader (obfd)->e_flags;
#ifdef DEBUG
_bfd_error_handler ("%B: old_flags = 0x%.8lx, new_flags = 0x%.8lx, init = %s",
ibfd, old_flags, new_flags, elf_flags_init (obfd) ? "yes" : "no");
#endif
elf_flags_init (obfd) = TRUE;
if ((new_flags & EF_MS1_CPU_MASK) == EF_MS1_CPU_MRISC2)
{
elf_elfheader (obfd)->e_flags = new_flags;
last_ibfd = ibfd;
obfd->arch_info = ibfd->arch_info;
}
return !error;
}
static bfd_boolean
ms1_elf_print_private_bfd_data (bfd * abfd, void * ptr)
{
FILE * file = (FILE *) ptr;
flagword flags;
BFD_ASSERT (abfd != NULL && ptr != NULL);
/* Print normal ELF private data. */
_bfd_elf_print_private_bfd_data (abfd, ptr);
flags = elf_elfheader (abfd)->e_flags;
fprintf (file, _("private flags = 0x%lx:"), (long)flags);
switch (flags & EF_MS1_CPU_MASK)
{
default:
case EF_MS1_CPU_MRISC: fprintf (file, " ms1-16-002"); break;
case EF_MS1_CPU_MRISC2: fprintf (file, " ms1-16-003"); break;
}
fputc ('\n', file);
return TRUE;
}
#define TARGET_BIG_SYM bfd_elf32_ms1_vec
#define TARGET_BIG_NAME "elf32-ms1"
#define ELF_ARCH bfd_arch_ms1
#define ELF_MACHINE_CODE EM_MS1
#define ELF_MAXPAGESIZE 1 /* No pages on the MS1. */
#define elf_info_to_howto_rel NULL
#define elf_info_to_howto ms1_info_to_howto_rela
#define elf_backend_relocate_section ms1_elf_relocate_section
#define bfd_elf32_bfd_reloc_type_lookup ms1_reloc_type_lookup
#define elf_backend_gc_mark_hook ms1_elf_gc_mark_hook
#define elf_backend_gc_sweep_hook ms1_elf_gc_sweep_hook
#define elf_backend_check_relocs ms1_elf_check_relocs
#define elf_backend_object_p ms1_elf_object_p
#define elf_backend_rela_normal 1
#define elf_backend_can_gc_sections 1
#define bfd_elf32_bfd_set_private_flags ms1_elf_set_private_flags
#define bfd_elf32_bfd_copy_private_bfd_data ms1_elf_copy_private_bfd_data
#define bfd_elf32_bfd_merge_private_bfd_data ms1_elf_merge_private_bfd_data
#define bfd_elf32_bfd_print_private_bfd_data ms1_elf_print_private_bfd_data
#include "elf32-target.h"

2
bfd/targets.c
View File

@ -790,6 +790,7 @@ extern const bfd_target sco5_core_vec;
extern const bfd_target trad_core_vec;
extern const bfd_target bfd_elf32_am33lin_vec;
extern const bfd_target bfd_elf32_ms1_vec;
static const bfd_target * const _bfd_target_vector[] = {
#ifdef SELECT_VECS
@ -1120,6 +1121,7 @@ static const bfd_target * const _bfd_target_vector[] = {
&we32kcoff_vec,
&z8kcoff_vec,
&bfd_elf32_am33lin_vec,
&bfd_elf32_ms1_vec,
#endif /* not SELECT_VECS */
/* Always support S-records, for convenience. */