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darling-gdb/bfd/elf32-fr30.c
Alan Modra 6d00b59031 bfd target vector rationalisation 
This renames the bfd targets to <cpu>_<format>_<other>_<endian>_vec.
So for example, bfd_elf32_ntradlittlemips_vec becomes
mips_elf32_ntrad_le_vec and hp300bsd_vec becomes m68k_aout_hp300bsd_vec.

bfd/
	* aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-ns32k.c,
	* aout-sparcle.c, * aout0.c, * aoutx.h, * armnetbsd.c, * bout.c,
	* cf-i386lynx.c, * cf-sparclynx.c, * cisco-core.c, * coff-alpha.c,
	* coff-apollo.c, * coff-arm.c, * coff-aux.c, * coff-go32.c,
	* coff-h8300.c, * coff-h8500.c, * coff-i386.c, * coff-i860.c,
	* coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mips.c,
	* coff-rs6000.c, * coff-sh.c, * coff-sparc.c, * coff-stgo32.c,
	* coff-svm68k.c, * coff-tic80.c, * coff-u68k.c, * coff-w65.c,
	* coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c,
	* coff64-rs6000.c, * config.bfd, * configure.com, * configure.in,
	* demo64.c, * elf-m10200.c, * elf-m10300.c, * elf32-am33lin.c,
	* elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-bfin.c,
	* elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c,
	* elf32-d10v.c, * elf32-d30v.c, * elf32-dlx.c, * elf32-epiphany.c,
	* elf32-fr30.c, * elf32-frv.c, * elf32-gen.c, * elf32-h8300.c,
	* elf32-hppa.c, * elf32-i370.c, * elf32-i386.c, * elf32-i860.c,
	* elf32-i960.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c,
	* elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c,
	* elf32-m68k.c, * elf32-m88k.c, * elf32-mcore.c, * elf32-mep.c,
	* elf32-metag.c, * elf32-microblaze.c, * elf32-mips.c, * elf32-moxie.c,
	* elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nios2.c,
	* elf32-or1k.c, * elf32-pj.c, * elf32-ppc.c, * elf32-rl78.c,
	* elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-sh-symbian.c,
	* elf32-sh.c, * elf32-sh64.c, * elf32-sparc.c, * elf32-spu.c,
	* elf32-tic6x.c, * elf32-tilegx.c, * elf32-tilepro.c, * elf32-v850.c,
	* elf32-vax.c, * elf32-xc16x.c, * elf32-xgate.c, * elf32-xstormy16.c,
	* elf32-xtensa.c, * elf64-alpha.c, * elf64-gen.c, * elf64-hppa.c,
	* elf64-ia64-vms.c, * elf64-mips.c, * elf64-mmix.c, * elf64-ppc.c,
	* elf64-s390.c, * elf64-sh64.c, * elf64-sparc.c, * elf64-tilegx.c,
	* elf64-x86-64.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c,
	* epoc-pe-arm.c, * epoc-pei-arm.c, * hp300bsd.c, * hp300hpux.c,
	* hppabsd-core.c, * hpux-core.c, * i386aout.c, * i386bsd.c,
	* i386dynix.c, * i386freebsd.c, * i386linux.c, * i386lynx.c,
	* i386mach3.c, * i386msdos.c, * i386netbsd.c, * i386os9k.c,
	* irix-core.c, * m68k4knetbsd.c, * m68klinux.c, * m68knetbsd.c,
	* m88kmach3.c, * m88kopenbsd.c, * mach-o-i386.c, * mach-o-x86-64.c,
	* makefile.vms, * mipsbsd.c, * mmo.c, * netbsd-core.c, * newsos3.c,
	* nlm32-alpha.c, * nlm32-i386.c, * nlm32-ppc.c, * nlm32-sparc.c,
	* ns32knetbsd.c, * osf-core.c, * pc532-mach.c, * pe-arm-wince.c,
	* pe-arm.c, * pe-i386.c, * pe-mcore.c, * pe-mips.c, * pe-ppc.c,
	* pe-sh.c, * pe-x86_64.c, * pei-arm-wince.c, * pei-arm.c,
	* pei-i386.c, * pei-ia64.c, * pei-mcore.c, * pei-mips.c, * pei-ppc.c,
	* pei-sh.c, * pei-x86_64.c, * ppcboot.c, * ptrace-core.c, * riscix.c,
	* sco5-core.c, * som.c, * sparclinux.c, * sparclynx.c,
	* sparcnetbsd.c, * sunos.c, * targets.c, * trad-core.c,
	* vax1knetbsd.c, * vaxbsd.c, * vaxnetbsd.c, * versados.c,
	* vms-alpha.c, * vms-lib.c: Rename bfd targets to
	<cpu>_<format>_<other>_<endian>_vec.  Adjust associated MY macros
	on aout targets.
	* configure: Regenerate.
binutils/
	* emul_aix.c: Update bfd target vector naming.
	* testsuite/binutils-all/objcopy.exp: Likewise.
ld/
	* emultempl/metagelf.em: Update bfd target vector naming.
	* emultempl/nios2elf.em: Likewise.
	* emultempl/spuelf.em: Likewise.
	* emultempl/tic6xdsbt.em: Likewise.
2014-05-02 20:09:40 +09:30

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/* FR30-specific support for 32-bit ELF.
Copyright (C) 1998-2014 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/fr30.h"
/* Forward declarations. */
static bfd_reloc_status_type
fr30_elf_i20_reloc (bfd *, arelent *, asymbol *, void * data,
asection *, bfd *, char **error_message);
static bfd_reloc_status_type
fr30_elf_i32_reloc (bfd *, arelent *, asymbol *, void *,
asection *, bfd *, char **);
static reloc_howto_type fr30_elf_howto_table [] =
{
/* This reloc does nothing. */
HOWTO (R_FR30_NONE, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_FR30_NONE", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
/* An 8 bit absolute relocation. */
HOWTO (R_FR30_8, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE, /* pc_relative */
4, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_FR30_8", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
0x0ff0, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 20 bit absolute relocation. */
HOWTO (R_FR30_20, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
20, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
fr30_elf_i20_reloc, /* special_function */
"R_FR30_20", /* name */
FALSE, /* partial_inplace */
0x00000000, /* src_mask */
0x00f0ffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 32 bit absolute relocation. */
HOWTO (R_FR30_32, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_FR30_32", /* name */
FALSE, /* partial_inplace */
0x00000000, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 32 bit into 48 bits absolute relocation. */
HOWTO (R_FR30_48, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
fr30_elf_i32_reloc, /* special_function */
"R_FR30_48", /* name */
FALSE, /* partial_inplace */
0x00000000, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 6 bit absolute relocation. */
HOWTO (R_FR30_6_IN_4, /* type */
2, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
6, /* bitsize */
FALSE, /* pc_relative */
4, /* bitpos */
complain_overflow_unsigned, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_FR30_6_IN_4", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
0x00f0, /* dst_mask */
FALSE), /* pcrel_offset */
/* An 8 bit absolute relocation. */
HOWTO (R_FR30_8_IN_8, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE, /* pc_relative */
4, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc,/* special_function */
"R_FR30_8_IN_8", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
0x0ff0, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 9 bit absolute relocation. */
HOWTO (R_FR30_9_IN_8, /* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
9, /* bitsize */
FALSE, /* pc_relative */
4, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc,/* special_function */
"R_FR30_9_IN_8", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
0x0ff0, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 10 bit absolute relocation. */
HOWTO (R_FR30_10_IN_8, /* type */
2, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
10, /* bitsize */
FALSE, /* pc_relative */
4, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc,/* special_function */
"R_FR30_10_IN_8", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
0x0ff0, /* dst_mask */
FALSE), /* pcrel_offset */
/* A PC relative 9 bit relocation, right shifted by 1. */
HOWTO (R_FR30_9_PCREL, /* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
9, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_FR30_9_PCREL", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A PC relative 12 bit relocation, right shifted by 1. */
HOWTO (R_FR30_12_PCREL, /* type */
1, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
12, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_signed, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_FR30_12_PCREL", /* name */
FALSE, /* partial_inplace */
0x0000, /* src_mask */
0x07ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* GNU extension to record C++ vtable hierarchy */
HOWTO (R_FR30_GNU_VTINHERIT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
NULL, /* special_function */
"R_FR30_GNU_VTINHERIT", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
/* GNU extension to record C++ vtable member usage */
HOWTO (R_FR30_GNU_VTENTRY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
"R_FR30_GNU_VTENTRY", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
};
/* Utility to actually perform an R_FR30_20 reloc. */
static bfd_reloc_status_type
fr30_elf_i20_reloc (bfd *abfd,
arelent *reloc_entry,
asymbol *symbol,
void * data,
asection *input_section,
bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation;
unsigned long x;
/* This part is from bfd_elf_generic_reloc. */
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& (! reloc_entry->howto->partial_inplace
|| reloc_entry->addend == 0))
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
if (output_bfd != NULL)
/* FIXME: See bfd_perform_relocation. Is this right? */
return bfd_reloc_ok;
relocation =
symbol->value
+ symbol->section->output_section->vma
+ symbol->section->output_offset
+ reloc_entry->addend;
if (relocation > (((bfd_vma) 1 << 20) - 1))
return bfd_reloc_overflow;
x = bfd_get_32 (abfd, (char *) data + reloc_entry->address);
x = (x & 0xff0f0000) | (relocation & 0x0000ffff) | ((relocation & 0x000f0000) << 4);
bfd_put_32 (abfd, (bfd_vma) x, (char *) data + reloc_entry->address);
return bfd_reloc_ok;
}
/* Utility to actually perform a R_FR30_48 reloc. */
static bfd_reloc_status_type
fr30_elf_i32_reloc (bfd *abfd,
arelent *reloc_entry,
asymbol *symbol,
void * data,
asection *input_section,
bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
bfd_vma relocation;
/* This part is from bfd_elf_generic_reloc. */
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& (! reloc_entry->howto->partial_inplace
|| reloc_entry->addend == 0))
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
if (output_bfd != NULL)
/* FIXME: See bfd_perform_relocation. Is this right? */
return bfd_reloc_ok;
relocation =
symbol->value
+ symbol->section->output_section->vma
+ symbol->section->output_offset
+ reloc_entry->addend;
bfd_put_32 (abfd, relocation, (char *) data + reloc_entry->address + 2);
return bfd_reloc_ok;
}
/* Map BFD reloc types to FR30 ELF reloc types. */
struct fr30_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned int fr30_reloc_val;
};
static const struct fr30_reloc_map fr30_reloc_map [] =
{
{ BFD_RELOC_NONE, R_FR30_NONE },
{ BFD_RELOC_8, R_FR30_8 },
{ BFD_RELOC_FR30_20, R_FR30_20 },
{ BFD_RELOC_32, R_FR30_32 },
{ BFD_RELOC_FR30_48, R_FR30_48 },
{ BFD_RELOC_FR30_6_IN_4, R_FR30_6_IN_4 },
{ BFD_RELOC_FR30_8_IN_8, R_FR30_8_IN_8 },
{ BFD_RELOC_FR30_9_IN_8, R_FR30_9_IN_8 },
{ BFD_RELOC_FR30_10_IN_8, R_FR30_10_IN_8 },
{ BFD_RELOC_FR30_9_PCREL, R_FR30_9_PCREL },
{ BFD_RELOC_FR30_12_PCREL, R_FR30_12_PCREL },
{ BFD_RELOC_VTABLE_INHERIT, R_FR30_GNU_VTINHERIT },
{ BFD_RELOC_VTABLE_ENTRY, R_FR30_GNU_VTENTRY },
};
static reloc_howto_type *
fr30_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = sizeof (fr30_reloc_map) / sizeof (fr30_reloc_map[0]);
--i;)
if (fr30_reloc_map [i].bfd_reloc_val == code)
return & fr30_elf_howto_table [fr30_reloc_map[i].fr30_reloc_val];
return NULL;
}
static reloc_howto_type *
fr30_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
{
unsigned int i;
for (i = 0;
i < sizeof (fr30_elf_howto_table) / sizeof (fr30_elf_howto_table[0]);
i++)
if (fr30_elf_howto_table[i].name != NULL
&& strcasecmp (fr30_elf_howto_table[i].name, r_name) == 0)
return &fr30_elf_howto_table[i];
return NULL;
}
/* Set the howto pointer for an FR30 ELF reloc. */
static void
fr30_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);
BFD_ASSERT (r_type < (unsigned int) R_FR30_max);
cache_ptr->howto = & fr30_elf_howto_table [r_type];
}
/* Perform a single relocation. By default we use the standard BFD
routines, but a few relocs, we have to do them ourselves. */
static bfd_reloc_status_type
fr30_final_link_relocate (reloc_howto_type *howto,
bfd *input_bfd,
asection *input_section,
bfd_byte *contents,
Elf_Internal_Rela *rel,
bfd_vma relocation)
{
bfd_reloc_status_type r = bfd_reloc_ok;
bfd_vma x;
bfd_signed_vma srel;
switch (howto->type)
{
case R_FR30_20:
contents += rel->r_offset;
relocation += rel->r_addend;
if (relocation > ((1 << 20) - 1))
return bfd_reloc_overflow;
x = bfd_get_32 (input_bfd, contents);
x = (x & 0xff0f0000) | (relocation & 0x0000ffff) | ((relocation & 0x000f0000) << 4);
bfd_put_32 (input_bfd, x, contents);
break;
case R_FR30_48:
contents += rel->r_offset + 2;
relocation += rel->r_addend;
bfd_put_32 (input_bfd, relocation, contents);
break;
case R_FR30_9_PCREL:
contents += rel->r_offset + 1;
srel = (bfd_signed_vma) relocation;
srel += rel->r_addend;
srel -= rel->r_offset;
srel -= 2; /* Branch instructions add 2 to the PC... */
srel -= (input_section->output_section->vma +
input_section->output_offset);
if (srel & 1)
return bfd_reloc_outofrange;
if (srel > ((1 << 8) - 1) || (srel < - (1 << 8)))
return bfd_reloc_overflow;
bfd_put_8 (input_bfd, srel >> 1, contents);
break;
case R_FR30_12_PCREL:
contents += rel->r_offset;
srel = (bfd_signed_vma) relocation;
srel += rel->r_addend;
srel -= rel->r_offset;
srel -= 2; /* Branch instructions add 2 to the PC... */
srel -= (input_section->output_section->vma +
input_section->output_offset);
if (srel & 1)
return bfd_reloc_outofrange;
if (srel > ((1 << 11) - 1) || (srel < - (1 << 11)))
return bfd_reloc_overflow;
x = bfd_get_16 (input_bfd, contents);
x = (x & 0xf800) | ((srel >> 1) & 0x7ff);
bfd_put_16 (input_bfd, x, contents);
break;
default:
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
relocation, rel->r_addend);
}
return r;
}
/* Relocate an FR30 ELF section.
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
fr30_elf_relocate_section (bfd *output_bfd,
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;
int r_type;
r_type = ELF32_R_TYPE (rel->r_info);
if ( r_type == R_FR30_GNU_VTINHERIT
|| r_type == R_FR30_GNU_VTENTRY)
continue;
r_symndx = ELF32_R_SYM (rel->r_info);
howto = fr30_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, warned, ignored;
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
h, sec, relocation,
unresolved_reloc, warned, ignored);
name = h->root.root.string;
}
if (sec != NULL && discarded_section (sec))
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
rel, 1, relend, howto, 0, contents);
if (info->relocatable)
continue;
r = fr30_final_link_relocate (howto, input_bfd, input_section,
contents, rel, relocation);
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_notsupported:
msg = _("internal error: unsupported relocation 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 *
fr30_elf_gc_mark_hook (asection *sec,
struct bfd_link_info *info,
Elf_Internal_Rela *rel,
struct elf_link_hash_entry *h,
Elf_Internal_Sym *sym)
{
if (h != NULL)
switch (ELF32_R_TYPE (rel->r_info))
{
case R_FR30_GNU_VTINHERIT:
case R_FR30_GNU_VTENTRY:
return NULL;
}
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
/* 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
fr30_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;
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);
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];
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
/* PR15323, ref flags aren't set for references in the same
object. */
h->root.non_ir_ref = 1;
}
switch (ELF32_R_TYPE (rel->r_info))
{
/* This relocation describes the C++ object vtable hierarchy.
Reconstruct it for later use during GC. */
case R_FR30_GNU_VTINHERIT:
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
return FALSE;
break;
/* This relocation describes which C++ vtable entries are actually
used. Record for later use during GC. */
case R_FR30_GNU_VTENTRY:
BFD_ASSERT (h != NULL);
if (h != NULL
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
return FALSE;
break;
}
}
return TRUE;
}
#define ELF_ARCH bfd_arch_fr30
#define ELF_MACHINE_CODE EM_FR30
#define ELF_MACHINE_ALT1 EM_CYGNUS_FR30
#define ELF_MAXPAGESIZE 0x1000
#define TARGET_BIG_SYM fr30_elf32_vec
#define TARGET_BIG_NAME "elf32-fr30"
#define elf_info_to_howto_rel NULL
#define elf_info_to_howto fr30_info_to_howto_rela
#define elf_backend_relocate_section fr30_elf_relocate_section
#define elf_backend_gc_mark_hook fr30_elf_gc_mark_hook
#define elf_backend_check_relocs fr30_elf_check_relocs
#define elf_backend_can_gc_sections 1
#define elf_backend_rela_normal 1
#define bfd_elf32_bfd_reloc_type_lookup fr30_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup fr30_reloc_name_lookup
#include "elf32-target.h"
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