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07d6d2b834
binutils-gdb/bfd/elf32-sparc.c
Alan Modra 07d6d2b834 BFD whitespace fixes 
Binutils is supposed to use tabs.  In my git config I have
whitespace = indent-with-non-tab,space-before-tab,trailing-space
and I got annoyed enough seeing red in "git diff" output to fix
the problems.

	* doc/header.sed: Trim trailing space when splitting lines.
	* aix386-core.c, * aout-adobe.c, * aout-arm.c, * aout-cris.c,
	* aout-ns32k.c, * aout-target.h, * aout-tic30.c, * aoutf1.h, * aoutx.h,
	* arc-got.h, * arc-plt.def, * arc-plt.h, * archive.c, * archive64.c,
	* archures.c, * armnetbsd.c, * bfd-in.h, * bfd.c, * bfdio.c, * binary.c,
	* bout.c, * cache.c, * cisco-core.c, * coff-alpha.c, * coff-apollo.c,
	* coff-arm.c, * coff-h8300.c, * coff-i386.c, * coff-i860.c,
	* coff-i960.c, * coff-m68k.c, * coff-m88k.c, * coff-mcore.c,
	* coff-mips.c, * coff-ppc.c, * coff-rs6000.c, * coff-sh.c,
	* coff-stgo32.c, * coff-tic4x.c, * coff-tic54x.c, * coff-tic80.c,
	* coff-we32k.c, * coff-x86_64.c, * coff-z80.c, * coff-z8k.c,
	* coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c,
	* coffswap.h, * compress.c, * corefile.c, * cpu-alpha.c, * cpu-arm.c,
	* cpu-avr.c, * cpu-bfin.c, * cpu-cr16.c, * cpu-cr16c.c, * cpu-crx.c,
	* cpu-d10v.c, * cpu-frv.c, * cpu-ft32.c, * cpu-i370.c, * cpu-i960.c,
	* cpu-ia64-opc.c, * cpu-ip2k.c, * cpu-lm32.c, * cpu-m32r.c,
	* cpu-mcore.c, * cpu-microblaze.c, * cpu-mips.c, * cpu-moxie.c,
	* cpu-mt.c, * cpu-nios2.c, * cpu-ns32k.c, * cpu-or1k.c, * cpu-powerpc.c,
	* cpu-pru.c, * cpu-sh.c, * cpu-spu.c, * cpu-v850.c, * cpu-v850_rh850.c,
	* cpu-xgate.c, * cpu-z80.c, * dwarf1.c, * dwarf2.c, * ecoff.c,
	* ecofflink.c, * ecoffswap.h, * elf-bfd.h, * elf-eh-frame.c,
	* elf-hppa.h, * elf-m10200.c, * elf-m10300.c, * elf-s390-common.c,
	* elf-strtab.c, * elf-vxworks.c, * elf.c, * elf32-am33lin.c,
	* elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-avr.h,
	* 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-ft32.c,
	* elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-i860.c,
	* elf32-i960.c, * elf32-ip2k.c, * elf32-lm32.c, * elf32-m32c.c,
	* elf32-m32r.c, * elf32-m68hc11.c, * elf32-m68hc12.c, * elf32-m68hc1x.c,
	* elf32-m68hc1x.h, * 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-nds32.h, * elf32-nios2.c, * elf32-or1k.c, * elf32-pj.c,
	* elf32-ppc.c, * elf32-ppc.h, * elf32-pru.c, * elf32-rl78.c,
	* elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score.h,
	* elf32-score7.c, * elf32-sh-symbian.c, * elf32-sh.c, * elf32-sh64.c,
	* elf32-sparc.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilegx.c,
	* elf32-tilegx.h, * elf32-tilepro.c, * elf32-tilepro.h, * elf32-v850.c,
	* elf32-vax.c, * elf32-wasm32.c, * elf32-xc16x.c, * elf32-xgate.c,
	* elf32-xgate.h, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.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-tilegx.h, * elf64-x86-64.c, * elfcore.h,
	* elflink.c, * elfn32-mips.c, * elfnn-aarch64.c, * elfnn-ia64.c,
	* elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-aarch64.h, * elfxx-ia64.c,
	* elfxx-ia64.h, * elfxx-mips.c, * elfxx-riscv.c, * elfxx-sparc.c,
	* elfxx-tilegx.c, * elfxx-x86.c, * elfxx-x86.h, * freebsd.h, * hash.c,
	* host-aout.c, * hp300hpux.c, * hppabsd-core.c, * hpux-core.c,
	* i386aout.c, * i386linux.c, * i386lynx.c, * i386mach3.c, * i386msdos.c,
	* i386netbsd.c, * ieee.c, * ihex.c, * irix-core.c, * libaout.h,
	* libbfd-in.h, * libbfd.c, * libcoff-in.h, * libnlm.h, * libpei.h,
	* libxcoff.h, * linker.c, * lynx-core.c, * m68k4knetbsd.c,
	* m68klinux.c, * m68knetbsd.c, * m88kmach3.c, * mach-o-aarch64.c,
	* mach-o-arm.c, * mach-o-i386.c, * mach-o-target.c, * mach-o-x86-64.c,
	* mach-o.c, * mach-o.h, * merge.c, * mipsbsd.c, * mmo.c, * netbsd.h,
	* netbsd-core.c, * newsos3.c, * nlm-target.h, * nlm32-ppc.c,
	* nlm32-sparc.c, * nlmcode.h, * ns32k.h, * ns32knetbsd.c, * oasys.c,
	* opncls.c, * pc532-mach.c, * pdp11.c, * pe-arm.c, * pe-i386.c,
	* pe-mcore.c, * pe-mips.c, * pe-x86_64.c, * peXXigen.c, * pef.c,
	* pef.h, * pei-arm.c, * pei-i386.c, * pei-mcore.c, * pei-x86_64.c,
	* peicode.h, * plugin.c, * ppcboot.c, * ptrace-core.c, * reloc.c,
	* riscix.c, * rs6000-core.c, * section.c, * som.c, * som.h,
	* sparclinux.c, * sparcnetbsd.c, * srec.c, * stabs.c, * sunos.c,
	* syms.c, * targets.c, * tekhex.c, * trad-core.c, * vax1knetbsd.c,
	* vaxnetbsd.c, * verilog.c, * versados.c, * vms-alpha.c, * vms-lib.c,
	* vms-misc.c, * wasm-module.c, * wasm-module.h, * xcofflink.c,
	* xsym.c, * xsym.h: Whitespace fixes.
	* bfd-in2.h, * libbfd.h, * libcoff.h: Regenerate.
2017-12-06 17:51:43 +10:30

361 lines
12 KiB
C
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/* SPARC-specific support for 32-bit ELF
Copyright (C) 1993-2017 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 "bfdlink.h"
#include "libbfd.h"
#include "elf-bfd.h"
#include "elf/sparc.h"
#include "opcode/sparc.h"
#include "elfxx-sparc.h"
#include "elf-vxworks.h"
/* Support for core dump NOTE sections. */
static bfd_boolean
elf32_sparc_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
{
switch (note->descsz)
{
default:
return FALSE;
case 260: /* Solaris prpsinfo_t. */
elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 84, 16);
elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 100, 80);
break;
case 336: /* Solaris psinfo_t. */
elf_tdata (abfd)->core->program
= _bfd_elfcore_strndup (abfd, note->descdata + 88, 16);
elf_tdata (abfd)->core->command
= _bfd_elfcore_strndup (abfd, note->descdata + 104, 80);
break;
}
return TRUE;
}
/* Functions for dealing with the e_flags field.
We don't define set_private_flags or copy_private_bfd_data because
the only currently defined values are based on the bfd mach number,
so we use the latter instead and defer setting e_flags until the
file is written out. */
/* Merge backend specific data from an object file to the output
object file when linking. */
static bfd_boolean
elf32_sparc_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
{
bfd *obfd = info->output_bfd;
bfd_boolean error;
unsigned long ibfd_mach;
/* FIXME: This should not be static. */
static unsigned long previous_ibfd_e_flags = (unsigned long) -1;
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
return TRUE;
error = FALSE;
ibfd_mach = bfd_get_mach (ibfd);
if (bfd_mach_sparc_64bit_p (ibfd_mach))
{
error = TRUE;
_bfd_error_handler
(_("%B: compiled for a 64 bit system and target is 32 bit"), ibfd);
}
else if ((ibfd->flags & DYNAMIC) == 0)
{
if (bfd_get_mach (obfd) < ibfd_mach)
bfd_set_arch_mach (obfd, bfd_arch_sparc, ibfd_mach);
}
if (((elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA)
!= previous_ibfd_e_flags)
&& previous_ibfd_e_flags != (unsigned long) -1)
{
_bfd_error_handler
(_("%B: linking little endian files with big endian files"), ibfd);
error = TRUE;
}
previous_ibfd_e_flags = elf_elfheader (ibfd)->e_flags & EF_SPARC_LEDATA;
if (error)
{
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
return _bfd_sparc_elf_merge_private_bfd_data (ibfd, info);
}
/* The final processing done just before writing out the object file.
We need to set the e_machine field appropriately. */
static void
elf32_sparc_final_write_processing (bfd *abfd,
bfd_boolean linker ATTRIBUTE_UNUSED)
{
switch (bfd_get_mach (abfd))
{
case bfd_mach_sparc :
case bfd_mach_sparc_sparclet :
case bfd_mach_sparc_sparclite :
break; /* nothing to do */
case bfd_mach_sparc_v8plus :
elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS;
break;
case bfd_mach_sparc_v8plusa :
elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1;
break;
case bfd_mach_sparc_v8plusb :
case bfd_mach_sparc_v8plusc :
case bfd_mach_sparc_v8plusd :
case bfd_mach_sparc_v8pluse :
case bfd_mach_sparc_v8plusv :
case bfd_mach_sparc_v8plusm :
case bfd_mach_sparc_v8plusm8 :
elf_elfheader (abfd)->e_machine = EM_SPARC32PLUS;
elf_elfheader (abfd)->e_flags &=~ EF_SPARC_32PLUS_MASK;
elf_elfheader (abfd)->e_flags |= EF_SPARC_32PLUS | EF_SPARC_SUN_US1
| EF_SPARC_SUN_US3;
break;
case bfd_mach_sparc_sparclite_le :
elf_elfheader (abfd)->e_flags |= EF_SPARC_LEDATA;
break;
default :
abort ();
break;
}
}
static enum elf_reloc_type_class
elf32_sparc_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
const asection *rel_sec ATTRIBUTE_UNUSED,
const Elf_Internal_Rela *rela)
{
switch ((int) ELF32_R_TYPE (rela->r_info))
{
case R_SPARC_RELATIVE:
return reloc_class_relative;
case R_SPARC_JMP_SLOT:
return reloc_class_plt;
case R_SPARC_COPY:
return reloc_class_copy;
default:
return reloc_class_normal;
}
}
/* Hook called by the linker routine which adds symbols from an object
file. */
static bfd_boolean
elf32_sparc_add_symbol_hook (bfd * abfd,
struct bfd_link_info * info,
Elf_Internal_Sym * sym,
const char ** namep ATTRIBUTE_UNUSED,
flagword * flagsp ATTRIBUTE_UNUSED,
asection ** secp ATTRIBUTE_UNUSED,
bfd_vma * valp ATTRIBUTE_UNUSED)
{
if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
&& (abfd->flags & DYNAMIC) == 0
&& bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
return TRUE;
}
#define TARGET_BIG_SYM sparc_elf32_vec
#define TARGET_BIG_NAME "elf32-sparc"
#define ELF_ARCH bfd_arch_sparc
#define ELF_TARGET_ID SPARC_ELF_DATA
#define ELF_MACHINE_CODE EM_SPARC
#define ELF_MACHINE_ALT1 EM_SPARC32PLUS
#define ELF_MAXPAGESIZE 0x10000
#define ELF_COMMONPAGESIZE 0x2000
#define bfd_elf32_bfd_merge_private_bfd_data \
elf32_sparc_merge_private_bfd_data
#define elf_backend_final_write_processing \
elf32_sparc_final_write_processing
#define elf_backend_grok_psinfo elf32_sparc_grok_psinfo
#define elf_backend_reloc_type_class elf32_sparc_reloc_type_class
#define elf_info_to_howto _bfd_sparc_elf_info_to_howto
#define bfd_elf32_bfd_reloc_type_lookup _bfd_sparc_elf_reloc_type_lookup
#define bfd_elf32_bfd_reloc_name_lookup \
_bfd_sparc_elf_reloc_name_lookup
#define bfd_elf32_bfd_link_hash_table_create \
_bfd_sparc_elf_link_hash_table_create
#define bfd_elf32_bfd_relax_section _bfd_sparc_elf_relax_section
#define bfd_elf32_new_section_hook _bfd_sparc_elf_new_section_hook
#define elf_backend_copy_indirect_symbol \
_bfd_sparc_elf_copy_indirect_symbol
#define elf_backend_create_dynamic_sections \
_bfd_sparc_elf_create_dynamic_sections
#define elf_backend_check_relocs _bfd_sparc_elf_check_relocs
#define elf_backend_adjust_dynamic_symbol \
_bfd_sparc_elf_adjust_dynamic_symbol
#define elf_backend_omit_section_dynsym _bfd_sparc_elf_omit_section_dynsym
#define elf_backend_size_dynamic_sections \
_bfd_sparc_elf_size_dynamic_sections
#define elf_backend_relocate_section _bfd_sparc_elf_relocate_section
#define elf_backend_finish_dynamic_symbol \
_bfd_sparc_elf_finish_dynamic_symbol
#define elf_backend_finish_dynamic_sections \
_bfd_sparc_elf_finish_dynamic_sections
#define bfd_elf32_mkobject _bfd_sparc_elf_mkobject
#define elf_backend_object_p _bfd_sparc_elf_object_p
#define elf_backend_gc_mark_hook _bfd_sparc_elf_gc_mark_hook
#define elf_backend_plt_sym_val _bfd_sparc_elf_plt_sym_val
#define elf_backend_init_index_section _bfd_elf_init_1_index_section
#define elf_backend_fixup_symbol _bfd_sparc_elf_fixup_symbol
#define elf_backend_can_gc_sections 1
#define elf_backend_can_refcount 1
#define elf_backend_want_got_plt 0
#define elf_backend_plt_readonly 0
#define elf_backend_want_plt_sym 1
#define elf_backend_got_header_size 4
#define elf_backend_want_dynrelro 1
#define elf_backend_rela_normal 1
#define elf_backend_add_symbol_hook elf32_sparc_add_symbol_hook
#define elf_backend_linux_prpsinfo32_ugid16 TRUE
#include "elf32-target.h"
/* Solaris 2. */
#undef TARGET_BIG_SYM
#define TARGET_BIG_SYM sparc_elf32_sol2_vec
#undef TARGET_BIG_NAME
#define TARGET_BIG_NAME "elf32-sparc-sol2"
#undef elf32_bed
#define elf32_bed elf32_sparc_sol2_bed
/* The 32-bit static TLS arena size is rounded to the nearest 8-byte
boundary. */
#undef elf_backend_static_tls_alignment
#define elf_backend_static_tls_alignment 8
#undef elf_backend_strtab_flags
#define elf_backend_strtab_flags SHF_STRINGS
static bfd_boolean
elf32_sparc_copy_solaris_special_section_fields (const bfd *ibfd ATTRIBUTE_UNUSED,
bfd *obfd ATTRIBUTE_UNUSED,
const Elf_Internal_Shdr *isection ATTRIBUTE_UNUSED,
Elf_Internal_Shdr *osection ATTRIBUTE_UNUSED)
{
/* PR 19938: FIXME: Need to add code for setting the sh_info
and sh_link fields of Solaris specific section types. */
return FALSE;
}
#undef elf_backend_copy_special_section_fields
#define elf_backend_copy_special_section_fields elf32_sparc_copy_solaris_special_section_fields
#include "elf32-target.h"
/* A wrapper around _bfd_sparc_elf_link_hash_table_create that identifies
the target system as VxWorks. */
static struct bfd_link_hash_table *
elf32_sparc_vxworks_link_hash_table_create (bfd *abfd)
{
struct bfd_link_hash_table *ret;
ret = _bfd_sparc_elf_link_hash_table_create (abfd);
if (ret)
{
struct _bfd_sparc_elf_link_hash_table *htab;
htab = (struct _bfd_sparc_elf_link_hash_table *) ret;
htab->is_vxworks = 1;
}
return ret;
}
/* A final_write_processing hook that does both the SPARC- and VxWorks-
specific handling. */
static void
elf32_sparc_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
{
elf32_sparc_final_write_processing (abfd, linker);
elf_vxworks_final_write_processing (abfd, linker);
}
#undef TARGET_BIG_SYM
#define TARGET_BIG_SYM sparc_elf32_vxworks_vec
#undef TARGET_BIG_NAME
#define TARGET_BIG_NAME "elf32-sparc-vxworks"
#undef ELF_MINPAGESIZE
#define ELF_MINPAGESIZE 0x1000
#undef bfd_elf32_bfd_link_hash_table_create
#define bfd_elf32_bfd_link_hash_table_create \
elf32_sparc_vxworks_link_hash_table_create
#undef elf_backend_want_got_plt
#define elf_backend_want_got_plt 1
#undef elf_backend_plt_readonly
#define elf_backend_plt_readonly 1
#undef elf_backend_got_header_size
#define elf_backend_got_header_size 12
#undef elf_backend_dtrel_excludes_plt
#define elf_backend_dtrel_excludes_plt 1
#undef elf_backend_add_symbol_hook
#define elf_backend_add_symbol_hook \
elf_vxworks_add_symbol_hook
#undef elf_backend_link_output_symbol_hook
#define elf_backend_link_output_symbol_hook \
elf_vxworks_link_output_symbol_hook
#undef elf_backend_emit_relocs
#define elf_backend_emit_relocs \
elf_vxworks_emit_relocs
#undef elf_backend_final_write_processing
#define elf_backend_final_write_processing \
elf32_sparc_vxworks_final_write_processing
#undef elf_backend_static_tls_alignment
#undef elf_backend_strtab_flags
#undef elf_backend_copy_special_section_fields
#undef elf32_bed
#define elf32_bed sparc_elf_vxworks_bed
#include "elf32-target.h"
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