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1e56386871
binutils-gdb/bfd/elf32-xgate.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

724 lines
22 KiB
C
Raw Blame History

/* Freescale XGATE-specific support for 32-bit ELF
Copyright (C) 2010-2017 Free Software Foundation, Inc.
Contributed by Sean Keys(skeys@ipdatasys.com)
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 "elf32-xgate.h"
#include "elf/xgate.h"
#include "opcode/xgate.h"
#include "libiberty.h"
/* Relocation functions. */
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (bfd *, bfd_reloc_code_real_type);
static reloc_howto_type *
bfd_elf32_bfd_reloc_name_lookup (bfd *, const char *);
static void
xgate_info_to_howto_rel (bfd *, arelent *, Elf_Internal_Rela *);
static bfd_boolean
xgate_elf_set_mach_from_flags (bfd *);
static struct bfd_hash_entry *
stub_hash_newfunc (struct bfd_hash_entry *, struct bfd_hash_table *,
const char *);
static struct bfd_link_hash_table*
xgate_elf_bfd_link_hash_table_create (bfd *);
/* Use REL instead of RELA to save space */
#define USE_REL 1
static reloc_howto_type elf_xgate_howto_table[] =
{
/* This reloc does nothing. */
HOWTO (R_XGATE_NONE, /* type */
0, /* rightshift */
3, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont,/* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XGATE_NONE", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 8 bit absolute relocation. */
HOWTO (R_XGATE_8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XGATE_8", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 8 bit PC-rel relocation. */
HOWTO (R_XGATE_PCREL_8, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XGATE_PCREL_8", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
TRUE), /* pcrel_offset */
/* A 16 bit absolute relocation. */
HOWTO (R_XGATE_16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont /*bitfield */, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XGATE_16", /* name */
FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 32 bit absolute relocation. This one is never used for the
code relocation. It's used by gas for -gstabs generation. */
HOWTO (R_XGATE_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_XGATE_32", /* name */
FALSE, /* partial_inplace */
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 16 bit PC-rel relocation. */
HOWTO (R_XGATE_PCREL_16, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
16, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XGATE_PCREL_16", /* name */
FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
TRUE), /* pcrel_offset */
/* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_XGATE_GNU_VTINHERIT, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
NULL, /* special_function */
"R_XGATE_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_XGATE_GNU_VTENTRY, /* type */
0, /* rightshift */
1, /* 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_XGATE_GNU_VTENTRY", /* name */
FALSE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 24 bit relocation. */
HOWTO (R_XGATE_24, /* type */
0, /* rightshift */
1, /* 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_XGATE_IMM8_LO", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 16-bit low relocation. */
HOWTO (R_XGATE_LO16, /* type */
8, /* rightshift */
1, /* 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_XGATE_IMM8_HI", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A page relocation. */
HOWTO (R_XGATE_GPAGE, /* type */
0, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
8, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
xgate_elf_special_reloc,/* special_function */
"R_XGATE_GPAGE", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 9 bit absolute relocation. */
HOWTO (R_XGATE_PCREL_9, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
9, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XGATE_PCREL_9", /* name */
FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
TRUE), /* pcrel_offset */
/* A 8 bit absolute relocation (upper address). */
HOWTO (R_XGATE_PCREL_10, /* type */
8, /* rightshift */
0, /* size (0 = byte, 1 = short, 2 = long) */
10, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
"R_XGATE_PCREL_10", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
TRUE), /* pcrel_offset */
/* A 8 bit absolute relocation. */
HOWTO (R_XGATE_IMM8_LO, /* type */
0, /* rightshift */
1, /* 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_XGATE_IMM8_LO", /* name */
FALSE, /* partial_inplace */
0xffff, /* src_mask */
0xffff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 16 bit absolute relocation (upper address). */
HOWTO (R_XGATE_IMM8_HI, /* type */
8, /* rightshift */
1, /* 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_XGATE_IMM8_HI", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 3 bit absolute relocation. */
HOWTO (R_XGATE_IMM3, /* type */
8, /* rightshift */
1, /* 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_XGATE_IMM3", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 4 bit absolute relocation. */
HOWTO (R_XGATE_IMM4, /* type */
8, /* rightshift */
1, /* 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_XGATE_IMM4", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* A 5 bit absolute relocation. */
HOWTO (R_XGATE_IMM5, /* type */
8, /* rightshift */
1, /* 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_XGATE_IMM5", /* name */
FALSE, /* partial_inplace */
0x00ff, /* src_mask */
0x00ff, /* dst_mask */
FALSE), /* pcrel_offset */
/* Mark beginning of a jump instruction (any form). */
HOWTO (R_XGATE_RL_JUMP, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
xgate_elf_ignore_reloc, /* special_function */
"R_XGATE_RL_JUMP", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
TRUE), /* pcrel_offset */
/* Mark beginning of Gcc relaxation group instruction. */
HOWTO (R_XGATE_RL_GROUP, /* type */
0, /* rightshift */
1, /* size (0 = byte, 1 = short, 2 = long) */
0, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
xgate_elf_ignore_reloc, /* special_function */
"R_XGATE_RL_GROUP", /* name */
TRUE, /* partial_inplace */
0, /* src_mask */
0, /* dst_mask */
TRUE), /* pcrel_offset */
};
/* Map BFD reloc types to XGATE ELF reloc types. */
struct xgate_reloc_map
{
bfd_reloc_code_real_type bfd_reloc_val;
unsigned char elf_reloc_val;
};
static const struct xgate_reloc_map xgate_reloc_map[] =
{
{BFD_RELOC_NONE, R_XGATE_NONE},
{BFD_RELOC_8, R_XGATE_8},
{BFD_RELOC_8_PCREL, R_XGATE_PCREL_8},
{BFD_RELOC_16_PCREL, R_XGATE_PCREL_16},
{BFD_RELOC_16, R_XGATE_16},
{BFD_RELOC_32, R_XGATE_32},
{BFD_RELOC_VTABLE_INHERIT, R_XGATE_GNU_VTINHERIT},
{BFD_RELOC_VTABLE_ENTRY, R_XGATE_GNU_VTENTRY},
{BFD_RELOC_XGATE_LO16, R_XGATE_LO16},
{BFD_RELOC_XGATE_GPAGE, R_XGATE_GPAGE},
{BFD_RELOC_XGATE_24, R_XGATE_24},
{BFD_RELOC_XGATE_PCREL_9, R_XGATE_PCREL_9},
{BFD_RELOC_XGATE_PCREL_10, R_XGATE_PCREL_10},
{BFD_RELOC_XGATE_IMM8_LO, R_XGATE_IMM8_LO},
{BFD_RELOC_XGATE_IMM8_HI, R_XGATE_IMM8_HI},
{BFD_RELOC_XGATE_IMM3, R_XGATE_IMM3},
{BFD_RELOC_XGATE_IMM4, R_XGATE_IMM4},
{BFD_RELOC_XGATE_IMM5, R_XGATE_IMM5},
{BFD_RELOC_XGATE_RL_JUMP, R_XGATE_RL_JUMP},
{BFD_RELOC_XGATE_RL_GROUP, R_XGATE_RL_GROUP},
};
static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
bfd_reloc_code_real_type code)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE (xgate_reloc_map); i++)
if (xgate_reloc_map[i].bfd_reloc_val == code)
return &elf_xgate_howto_table[xgate_reloc_map[i].elf_reloc_val];
return NULL;
}
static reloc_howto_type *
bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE (elf_xgate_howto_table); i++)
if (elf_xgate_howto_table[i].name != NULL
&& strcasecmp (elf_xgate_howto_table[i].name, r_name) == 0)
return &elf_xgate_howto_table[i];
return NULL;
}
/* Set the howto pointer for an XGATE ELF reloc. */
static void
xgate_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
unsigned int r_type;
r_type = ELF32_R_TYPE (dst->r_info);
if (r_type >= (unsigned int) R_XGATE_max)
{
/* xgettext:c-format */
_bfd_error_handler (_("%B: invalid XGate reloc number: %d"), abfd, r_type);
r_type = 0;
}
cache_ptr->howto = &elf_xgate_howto_table[r_type];
}
/* Destroy an XGATE ELF linker hash table. */
static void
xgate_elf_bfd_link_hash_table_free (bfd *obfd)
{
struct xgate_elf_link_hash_table *ret =
(struct xgate_elf_link_hash_table *) obfd->link.hash;
bfd_hash_table_free (ret->stub_hash_table);
free (ret->stub_hash_table);
_bfd_elf_link_hash_table_free (obfd);
}
/* Create an XGATE ELF linker hash table. */
static struct bfd_link_hash_table*
xgate_elf_bfd_link_hash_table_create (bfd *abfd)
{
struct xgate_elf_link_hash_table *ret;
bfd_size_type amt = sizeof(struct xgate_elf_link_hash_table);
ret = (struct xgate_elf_link_hash_table *) bfd_zmalloc (amt);
if (ret == (struct xgate_elf_link_hash_table *) NULL)
return NULL;
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
_bfd_elf_link_hash_newfunc, sizeof(struct elf_link_hash_entry),
XGATE_ELF_DATA))
{
free (ret);
return NULL;
}
/* Init the stub hash table too. */
amt = sizeof(struct bfd_hash_table);
ret->stub_hash_table = (struct bfd_hash_table*) bfd_zmalloc (amt);
if (ret->stub_hash_table == NULL)
{
_bfd_elf_link_hash_table_free (abfd);
return NULL;
}
if (!bfd_hash_table_init (ret->stub_hash_table, stub_hash_newfunc,
sizeof(struct elf32_xgate_stub_hash_entry)))
{
free (ret->stub_hash_table);
_bfd_elf_link_hash_table_free (abfd);
return NULL;
}
ret->root.root.hash_table_free = xgate_elf_bfd_link_hash_table_free;
return &ret->root.root;
}
static bfd_boolean
xgate_elf_set_mach_from_flags (bfd *abfd ATTRIBUTE_UNUSED)
{
return TRUE;
}
/* Specific sections:
- The .page0 is a data section that is mapped in [0x0000..0x00FF].
Page0 accesses are faster on the M68HC12.
- The .vectors is the section that represents the interrupt
vectors.
- The .xgate section is starts in 0xE08800 or as xgate sees it 0x0800. */
static const struct bfd_elf_special_section elf32_xgate_special_sections[] =
{
{ STRING_COMMA_LEN (".eeprom"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
{ STRING_COMMA_LEN (".page0"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
{ STRING_COMMA_LEN (".softregs"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
{ STRING_COMMA_LEN (".vectors"), 0, SHT_PROGBITS, SHF_ALLOC },
/*{ STRING_COMMA_LEN (".xgate"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
TODO finish this implementation */
{ NULL, 0, 0, 0, 0 }
};
struct xgate_scan_param
{
struct xgate_page_info* pinfo;
bfd_boolean use_memory_banks;
};
/* Assorted hash table functions. */
/* Initialize an entry in the stub hash table. */
static struct bfd_hash_entry *
stub_hash_newfunc (struct bfd_hash_entry *entry,
struct bfd_hash_table *table ATTRIBUTE_UNUSED,
const char *string ATTRIBUTE_UNUSED)
{
return entry;
}
/* Hook called by the linker routine which adds symbols from an object
file. */
bfd_boolean
elf32_xgate_add_symbol_hook (bfd *abfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
Elf_Internal_Sym *sym,
const char **namep ATTRIBUTE_UNUSED,
flagword *flagsp ATTRIBUTE_UNUSED,
asection **secp ATTRIBUTE_UNUSED,
bfd_vma *valp ATTRIBUTE_UNUSED)
{
/* For some reason the st_target_internal value is not retained
after xgate_frob_symbol is called, hence this temp hack. */
sym->st_target_internal = 1;
return TRUE;
}
/* External entry points for sizing and building linker stubs. */
/* Set up various things so that we can make a list of input sections
for each output section included in the link. Returns -1 on error,
0 when no stubs will be needed, and 1 on success. */
int
elf32_xgate_setup_section_lists (bfd *output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
return 1;
}
/* Determine and set the size of the stub section for a final link.
The basic idea here is to examine all the relocations looking for
PC-relative calls to a target that is unreachable with any "9-bit PC-REL"
instruction. */
bfd_boolean
elf32_xgate_size_stubs (bfd *output_bfd ATTRIBUTE_UNUSED,
bfd *stub_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
asection * (*add_stub_section) (const char*, asection*) ATTRIBUTE_UNUSED)
{
return FALSE;
}
/* Build all the stubs associated with the current output file. The
stubs are kept in a hash table attached to the main linker hash
table. This function is called via xgateelf_finish in the
linker. */
bfd_boolean
elf32_xgate_build_stubs (bfd *abfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
return TRUE;
}
void
xgate_elf_get_bank_parameters (struct bfd_link_info *info ATTRIBUTE_UNUSED)
{
return;
}
/* This function is used for relocs which are only used for relaxing,
which the linker should otherwise ignore. */
bfd_reloc_status_type
xgate_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED,
arelent *reloc_entry,
asymbol *symbol ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED,
asection *input_section,
bfd *output_bfd,
char **error_message ATTRIBUTE_UNUSED)
{
if (output_bfd != NULL)
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
bfd_reloc_status_type
xgate_elf_special_reloc (bfd *abfd ATTRIBUTE_UNUSED,
arelent *reloc_entry ATTRIBUTE_UNUSED,
asymbol *symbol ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd *output_bfd ATTRIBUTE_UNUSED,
char **error_message ATTRIBUTE_UNUSED)
{
abort ();
}
/* 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. */
bfd_boolean
elf32_xgate_check_relocs (bfd *abfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
asection *sec ATTRIBUTE_UNUSED,
const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
{
return TRUE;
}
/* Relocate a XGATE/S12x ELF section. */
bfd_boolean
elf32_xgate_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info ATTRIBUTE_UNUSED,
bfd *input_bfd ATTRIBUTE_UNUSED,
asection *input_section ATTRIBUTE_UNUSED,
bfd_byte *contents ATTRIBUTE_UNUSED,
Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED,
Elf_Internal_Sym *local_syms ATTRIBUTE_UNUSED,
asection **local_sections ATTRIBUTE_UNUSED)
{
return TRUE;
}
/* Set and control ELF flags in ELF header. */
bfd_boolean
_bfd_xgate_elf_set_private_flags (bfd *abfd ATTRIBUTE_UNUSED,
flagword flags ATTRIBUTE_UNUSED)
{
return TRUE;
}
bfd_boolean
_bfd_xgate_elf_print_private_bfd_data (bfd *abfd, void *ptr)
{
FILE *file = (FILE *) ptr;
BFD_ASSERT (abfd != NULL && ptr != NULL);
/* Print normal ELF private data. */
_bfd_elf_print_private_bfd_data (abfd, ptr);
/* xgettext:c-format */
fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags);
if (elf_elfheader (abfd)->e_flags & E_XGATE_I32)
fprintf (file, _("[abi=32-bit int, "));
else
fprintf (file, _("[abi=16-bit int, "));
if (elf_elfheader (abfd)->e_flags & E_XGATE_F64)
fprintf (file, _("64-bit double, "));
else
fprintf (file, _("32-bit double, "));
if (elf_elfheader (abfd)->e_flags & EF_XGATE_MACH)
fprintf (file, _("cpu=XGATE]"));
else
fprintf (file, _("error reading cpu type from elf private data"));
fputc ('\n', file);
return TRUE;
}
void
elf32_xgate_post_process_headers (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
{
}
#define ELF_ARCH bfd_arch_xgate
#define ELF_MACHINE_CODE EM_XGATE
#define ELF_TARGET_ID XGATE_ELF_DATA
#define ELF_MAXPAGESIZE 0x1000
#define TARGET_BIG_SYM xgate_elf32_vec
#define TARGET_BIG_NAME "elf32-xgate"
#define elf_info_to_howto 0
#define elf_info_to_howto_rel xgate_info_to_howto_rel
#define elf_backend_check_relocs elf32_xgate_check_relocs
#define elf_backend_relocate_section elf32_xgate_relocate_section
#define elf_backend_object_p xgate_elf_set_mach_from_flags
#define elf_backend_final_write_processing 0
#define elf_backend_can_gc_sections 1
#define elf_backend_special_sections elf32_xgate_special_sections
#define elf_backend_post_process_headers elf32_xgate_post_process_headers
#define elf_backend_add_symbol_hook elf32_xgate_add_symbol_hook
#define bfd_elf32_bfd_link_hash_table_create xgate_elf_bfd_link_hash_table_create
#define bfd_elf32_bfd_set_private_flags _bfd_xgate_elf_set_private_flags
#define bfd_elf32_bfd_print_private_bfd_data _bfd_xgate_elf_print_private_bfd_data
#define xgate_stub_hash_lookup(table, string, create, copy) \
((struct elf32_xgate_stub_hash_entry *) \
bfd_hash_lookup ((table), (string), (create), (copy)))
#include "elf32-target.h"
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