mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
5c3261b0e8
For all ELF targers, call check_relocs after opening all inputs and
garbage collection. Since the symbol resolution is known, check_relocs
can be simplified. Also garbage collection doesn't need to undo what
check_relocs has done for symbols which have been garbage collected.
Since ELF targets never see the removed sections, gc_sweep_hook can be
removed from elf_backend_data and we can avoid GOT/PLT with garbage
collection now.
Set link_info.check_relocs_after_open_input to TRUE for all linker
targets which use ELF linker and update garbage collection tests to
remove unused GOT section.
ldemul_after_check_relocs is added for powerpc to support --secure-plt,
--bss-plt and --sdata-got.
Tested natively without regressions on i686, x86-64 and x32. Tested
cross binutils on x86-64 without regressions for aarch64-linux,
alpha-linux, arm-linux, bfin-elf, cr16-elf, cris-elf, crx-elf, frv-linux,
hppa64-linux, hppa-linux, ia64-linux, lm32-elf, m32r-elf, m68k-linux,
mcore-elf, metag-elf, microblaze-linux, mips-linux, mmix, mn10300-elf,
nds32le-linux, nios2-linux, or1k-elf, powerpc64-linux, powerpc-linux,
riscv32-linux, riscv64-linux, s390-linux, s390x-linux, score-elf,
sh3-linux, sparc64-linux, sparc-linux, tic6x-elf, tilegx-linux,
tilepro-linux, vax-linux, x86_64-mingw32 and xtensa-linux.
bfd/
* elf-bfd.h (elf_backend_data): Remove gc_sweep_hook.
* elf32-arm.c (elf32_arm_gc_sweep_hook): Removed.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-bfin.c (bfin_gc_sweep_hook): Likewise.
(bfinfdpic_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-cr16.c (elf32_cr16_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-cris.c (cris_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-hppa.c (elf32_hppa_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-lm32.c (lm32_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-m32r.c (m32r_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-m68k.c (elf_m68k_got_entry): Remove elf_m68k_gc_sweep_hook
from comments.
(elf_m68k_remove_got_entry_type): Removed.
(elf_m68k_find_got_entry_ptr): Likewise.
(elf_m68k_remove_got_entry): Likewise.
(elf_m68k_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-mcore.c (mcore_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-metag.c (elf_metag_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-microblaze.c (elf_backend_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-mips.c (elf_backend_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-nds32.c (nds32_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-nios2.c (nios2_elf32_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-or1k.c (or1k_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-ppc.c (ppc_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-s390.c (elf_s390_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-sparc.c (elf_backend_gc_sweep_hook): Likewise.
* elf32-tic6x.c (elf32_tic6x_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
* elf32-tilepro.c (tilepro_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-vax.c (elf_vax_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf32-xtensa.c (elf_xtensa_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf64-alpha.c (elf64_alpha_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf64-mips.c (elf_backend_gc_sweep_hook): Likewise.
* elf64-mmix.c (mmix_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf64-ppc.c (elf_backend_gc_sweep_hook): Likewise.
(ppc64_elf_gc_sweep_hook): Likewise.
* elf64-s390.c (elf_s390_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elf64-sparc.c (elf_backend_gc_sweep_hook): Likewise.
* elf64-tilegx.c (elf_backend_gc_sweep_hook): Likewise.
* elflink.c (elf_link_add_object_symbols): Don't call
_bfd_elf_link_check_relocs here.
(gc_sweep_hook_fn): Removed.
(elf_gc_sweep): Remove gc_sweep_hook.
* elfnn-aarch64.c (elfNN_aarch64_gc_sweep_hook): Removed.
(elf_backend_gc_sweep_hook): Likewise.
* elfnn-riscv.c (riscv_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elfxx-mips.c (_bfd_mips_elf_gc_sweep_hook): Likewise.
* elfxx-mips.h (_bfd_mips_elf_gc_sweep_hook): Likewise.
(elf_backend_gc_sweep_hook): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_gc_sweep_hook): Likewise.
* elfxx-sparc.h (_bfd_sparc_elf_gc_sweep_hook): Likewise.
* elfxx-target.h (elf_backend_gc_sweep_hook): Likewise.
(elfNN_bed): Remove elf_backend_gc_sweep_hook.
* elfxx-tilegx.c (tilegx_elf_gc_sweep_hook): Removed.
* elfxx-tilegx.h (tilegx_elf_gc_sweep_hook): Likewise.
ld/
* emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Removed.
* emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/elf_iamcu.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/elf_k1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/elf_l1om.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/i386lynx.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/i386moss.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/i386nw.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/shelf.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/shelf32.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/shelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/shelf_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/shlelf32_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/shlelf_linux.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emulparams/shlelf_nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT):
Likewise.
* emultempl/aarch64elf.em (gld${EMULATION_NAME}_before_parse):
Set link_info.check_relocs_after_open_input to TRUE.
* emultempl/armelf.em (gld${EMULATION_NAME}_before_parse):
Likewise.
* emultempl/scoreelf.em (gld${EMULATION_NAME}_before_parse):
Likewise.
* emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add
after_parse_default.
* emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/gld960.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/gld960c.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/lnk960.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/m68kcoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/sunos.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/vanilla.em (ld_${EMULATION_NAME}_emulation): Likewise.
* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Always
set link_info.check_relocs_after_open_input to TRUE.
(ld_${EMULATION_NAME}_emulation): Add $LDEMUL_AFTER_CHECK_RELOCS.
* emultempl/linux.em (gld${EMULATION_NAME}_before_parse):
Set link_info.check_relocs_after_open_input to TRUE.
(ld_${EMULATION_NAME}_emulation): Add after_check_relocs_default.
* emultempl/mmix-elfnmmo.em (mmix_before_parse): New function.
(LDEMUL_BEFORE_PARSE): New.
* emultempl/mmixelf.em (elfmmix_before_parse): Replace
gld${EMULATION_NAME}_before_parse with mmix_before_parse.
* emultempl/ppc32elf.em (ppc_after_open): Renamed to ...
(ppc_after_check_relocs): This. Call after_check_relocs_default
instead of gld${EMULATION_NAME}_after_open.
(LDEMUL_AFTER_OPEN): Removed.
(LDEMUL_AFTER_CHECK_RELOCS): New.
* ldemul.c (ldemul_after_check_relocs): New.
(after_check_relocs_default): Likewise.
* ldemul.h (ldemul_after_check_relocs): Likewise.
(after_check_relocs_default): Likewise.
(ld_emulation_xfer_struct): Add after_check_relocs.
* ldlang.c (lang_process): Call ldemul_after_check_relocs after
lang_check_relocs.
* testsuite/ld-aarch64/gc-got-relocs.d: Don't expect GOT section.
* testsuite/ld-aarch64/gc-tls-relocs.d: Likewise.
* testsuite/ld-cris/tls-gc-68.d: Likewise.
* testsuite/ld-cris/tls-gc-69.d: Likewise.
* testsuite/ld-cris/tls-gc-70.d: Likewise.
* testsuite/ld-cris/tls-gc-75.d: Likewise.
* testsuite/ld-cris/tls-gc-79.d: Likewise.
* testsuite/ld-mmix/bpo-10.d: Don't expect .MMIX.reg_contents
section.
2703 lines
95 KiB
C
2703 lines
95 KiB
C
/* Or1k-specific support for 32-bit ELF.
|
|
Copyright (C) 2001-2017 Free Software Foundation, Inc.
|
|
Contributed for OR32 by Johan Rydberg, jrydberg@opencores.org
|
|
|
|
PIC parts added by Stefan Kristiansson, stefan.kristiansson@saunalahti.fi,
|
|
largely based on elf32-m32r.c and elf32-microblaze.c.
|
|
|
|
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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "sysdep.h"
|
|
#include "bfd.h"
|
|
#include "libbfd.h"
|
|
#include "elf-bfd.h"
|
|
#include "elf/or1k.h"
|
|
#include "libiberty.h"
|
|
|
|
#define PLT_ENTRY_SIZE 20
|
|
|
|
#define PLT0_ENTRY_WORD0 0x19800000 /* l.movhi r12, 0 <- hi(.got+4) */
|
|
#define PLT0_ENTRY_WORD1 0xa98c0000 /* l.ori r12, r12, 0 <- lo(.got+4) */
|
|
#define PLT0_ENTRY_WORD2 0x85ec0004 /* l.lwz r15, 4(r12) <- *(.got+8)*/
|
|
#define PLT0_ENTRY_WORD3 0x44007800 /* l.jr r15 */
|
|
#define PLT0_ENTRY_WORD4 0x858c0000 /* l.lwz r12, 0(r12) */
|
|
|
|
#define PLT0_PIC_ENTRY_WORD0 0x85900004 /* l.lwz r12, 4(r16) */
|
|
#define PLT0_PIC_ENTRY_WORD1 0x85f00008 /* l.lwz r15, 8(r16) */
|
|
#define PLT0_PIC_ENTRY_WORD2 0x44007800 /* l.jr r15 */
|
|
#define PLT0_PIC_ENTRY_WORD3 0x15000000 /* l.nop */
|
|
#define PLT0_PIC_ENTRY_WORD4 0x15000000 /* l.nop */
|
|
|
|
#define PLT_ENTRY_WORD0 0x19800000 /* l.movhi r12, 0 <- hi(got idx addr) */
|
|
#define PLT_ENTRY_WORD1 0xa98c0000 /* l.ori r12, r12, 0 <- lo(got idx addr) */
|
|
#define PLT_ENTRY_WORD2 0x858c0000 /* l.lwz r12, 0(r12) */
|
|
#define PLT_ENTRY_WORD3 0x44006000 /* l.jr r12 */
|
|
#define PLT_ENTRY_WORD4 0xa9600000 /* l.ori r11, r0, 0 <- reloc offset */
|
|
|
|
#define PLT_PIC_ENTRY_WORD0 0x85900000 /* l.lwz r12, 0(r16) <- index in got */
|
|
#define PLT_PIC_ENTRY_WORD1 0xa9600000 /* l.ori r11, r0, 0 <- reloc offset */
|
|
#define PLT_PIC_ENTRY_WORD2 0x44006000 /* l.jr r12 */
|
|
#define PLT_PIC_ENTRY_WORD3 0x15000000 /* l.nop */
|
|
#define PLT_PIC_ENTRY_WORD4 0x15000000 /* l.nop */
|
|
|
|
#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
|
|
|
|
static reloc_howto_type or1k_elf_howto_table[] =
|
|
{
|
|
/* This reloc does nothing. */
|
|
HOWTO (R_OR1K_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_OR1K_NONE", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_32,
|
|
0, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
32, /* bitsize */
|
|
FALSE, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_unsigned, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_OR1K_32", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_16,
|
|
0, /* rightshift */
|
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
|
16, /* bitsize */
|
|
FALSE, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_unsigned, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_OR1K_16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_8,
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
8, /* bitsize */
|
|
FALSE, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_unsigned, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_OR1K_8", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0xff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_LO_16_IN_INSN, /* 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_OR1K_LO_16_IN_INSN", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0x0000ffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_HI_16_IN_INSN, /* type */
|
|
16, /* 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_OR1K_HI_16_IN_INSN", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0x0000ffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
/* A PC relative 26 bit relocation, right shifted by 2. */
|
|
HOWTO (R_OR1K_INSN_REL_26, /* type */
|
|
2, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
26, /* bitsize */
|
|
TRUE, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_OR1K_INSN_REL_26", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0x03ffffff, /* dst_mask */
|
|
TRUE), /* pcrel_offset */
|
|
|
|
/* GNU extension to record C++ vtable hierarchy. */
|
|
HOWTO (R_OR1K_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_OR1K_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_OR1K_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_OR1K_GNU_VTENTRY", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_32_PCREL,
|
|
0, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
32, /* bitsize */
|
|
TRUE, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_OR1K_32_PCREL", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
TRUE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_16_PCREL,
|
|
0, /* rightshift */
|
|
1, /* 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_OR1K_16_PCREL", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
TRUE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_8_PCREL,
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
8, /* bitsize */
|
|
TRUE, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_OR1K_8_PCREL", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0xff, /* dst_mask */
|
|
TRUE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_GOTPC_HI16, /* Type. */
|
|
16, /* Rightshift. */
|
|
2, /* 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_OR1K_GOTPC_HI16", /* Name. */
|
|
FALSE, /* Partial Inplace. */
|
|
0, /* Source Mask. */
|
|
0xffff, /* Dest Mask. */
|
|
TRUE), /* PC relative offset? */
|
|
|
|
HOWTO (R_OR1K_GOTPC_LO16, /* Type. */
|
|
0, /* Rightshift. */
|
|
2, /* 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_OR1K_GOTPC_LO16", /* Name. */
|
|
FALSE, /* Partial Inplace. */
|
|
0, /* Source Mask. */
|
|
0xffff, /* Dest Mask. */
|
|
TRUE), /* PC relative offset? */
|
|
|
|
HOWTO (R_OR1K_GOT16, /* type */
|
|
0, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
16, /* bitsize */
|
|
FALSE, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_OR1K_GOT16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
/* A 26 bit PLT relocation. Shifted by 2. */
|
|
HOWTO (R_OR1K_PLT26, /* Type. */
|
|
2, /* Rightshift. */
|
|
2, /* Size (0 = byte, 1 = short, 2 = long). */
|
|
26, /* Bitsize. */
|
|
TRUE, /* PC_relative. */
|
|
0, /* Bitpos. */
|
|
complain_overflow_dont, /* Complain on overflow. */
|
|
bfd_elf_generic_reloc,/* Special Function. */
|
|
"R_OR1K_PLT26", /* Name. */
|
|
FALSE, /* Partial Inplace. */
|
|
0, /* Source Mask. */
|
|
0x03ffffff, /* Dest Mask. */
|
|
TRUE), /* PC relative offset? */
|
|
|
|
HOWTO (R_OR1K_GOTOFF_HI16, /* type */
|
|
16, /* 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_OR1K_GOTOFF_HI16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_GOTOFF_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_OR1K_GOTOFF_LO16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_COPY, /* 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_OR1K_COPY", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_GLOB_DAT, /* 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_OR1K_GLOB_DAT", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_JMP_SLOT, /* 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_OR1K_JMP_SLOT", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_RELATIVE, /* 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_OR1K_RELATIVE", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_GD_HI16, /* type */
|
|
16, /* 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_OR1K_TLS_GD_HI16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_GD_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_OR1K_TLS_GD_LO16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_LDM_HI16, /* type */
|
|
16, /* 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_OR1K_TLS_LDM_HI16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_LDM_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_OR1K_TLS_LDM_LO16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_LDO_HI16, /* type */
|
|
16, /* 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_OR1K_TLS_LDO_HI16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_LDO_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_OR1K_TLS_LDO_LO16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_IE_HI16, /* type */
|
|
16, /* 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_OR1K_TLS_IE_HI16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_IE_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_OR1K_TLS_IE_LO16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_LE_HI16, /* type */
|
|
16, /* 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_OR1K_TLS_LE_HI16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
HOWTO (R_OR1K_TLS_LE_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_OR1K_TLS_LE_LO16", /* name */
|
|
FALSE, /* partial_inplace */
|
|
0x0, /* src_mask */
|
|
0xffff, /* dst_mask */
|
|
FALSE), /* pcrel_offset */
|
|
|
|
};
|
|
|
|
/* Map BFD reloc types to Or1k ELF reloc types. */
|
|
|
|
struct or1k_reloc_map
|
|
{
|
|
bfd_reloc_code_real_type bfd_reloc_val;
|
|
unsigned int or1k_reloc_val;
|
|
};
|
|
|
|
static const struct or1k_reloc_map or1k_reloc_map[] =
|
|
{
|
|
{ BFD_RELOC_NONE, R_OR1K_NONE },
|
|
{ BFD_RELOC_32, R_OR1K_32 },
|
|
{ BFD_RELOC_16, R_OR1K_16 },
|
|
{ BFD_RELOC_8, R_OR1K_8 },
|
|
{ BFD_RELOC_LO16, R_OR1K_LO_16_IN_INSN },
|
|
{ BFD_RELOC_HI16, R_OR1K_HI_16_IN_INSN },
|
|
{ BFD_RELOC_OR1K_REL_26, R_OR1K_INSN_REL_26 },
|
|
{ BFD_RELOC_VTABLE_ENTRY, R_OR1K_GNU_VTENTRY },
|
|
{ BFD_RELOC_VTABLE_INHERIT, R_OR1K_GNU_VTINHERIT },
|
|
{ BFD_RELOC_32_PCREL, R_OR1K_32_PCREL },
|
|
{ BFD_RELOC_16_PCREL, R_OR1K_16_PCREL },
|
|
{ BFD_RELOC_8_PCREL, R_OR1K_8_PCREL },
|
|
{ BFD_RELOC_OR1K_GOTPC_HI16, R_OR1K_GOTPC_HI16 },
|
|
{ BFD_RELOC_OR1K_GOTPC_LO16, R_OR1K_GOTPC_LO16 },
|
|
{ BFD_RELOC_OR1K_GOT16, R_OR1K_GOT16 },
|
|
{ BFD_RELOC_OR1K_PLT26, R_OR1K_PLT26 },
|
|
{ BFD_RELOC_OR1K_GOTOFF_HI16, R_OR1K_GOTOFF_HI16 },
|
|
{ BFD_RELOC_OR1K_GOTOFF_LO16, R_OR1K_GOTOFF_LO16 },
|
|
{ BFD_RELOC_OR1K_GLOB_DAT, R_OR1K_GLOB_DAT },
|
|
{ BFD_RELOC_OR1K_COPY, R_OR1K_COPY },
|
|
{ BFD_RELOC_OR1K_JMP_SLOT, R_OR1K_JMP_SLOT },
|
|
{ BFD_RELOC_OR1K_RELATIVE, R_OR1K_RELATIVE },
|
|
{ BFD_RELOC_OR1K_TLS_GD_HI16, R_OR1K_TLS_GD_HI16 },
|
|
{ BFD_RELOC_OR1K_TLS_GD_LO16, R_OR1K_TLS_GD_LO16 },
|
|
{ BFD_RELOC_OR1K_TLS_LDM_HI16, R_OR1K_TLS_LDM_HI16 },
|
|
{ BFD_RELOC_OR1K_TLS_LDM_LO16, R_OR1K_TLS_LDM_LO16 },
|
|
{ BFD_RELOC_OR1K_TLS_LDO_HI16, R_OR1K_TLS_LDO_HI16 },
|
|
{ BFD_RELOC_OR1K_TLS_LDO_LO16, R_OR1K_TLS_LDO_LO16 },
|
|
{ BFD_RELOC_OR1K_TLS_IE_HI16, R_OR1K_TLS_IE_HI16 },
|
|
{ BFD_RELOC_OR1K_TLS_IE_LO16, R_OR1K_TLS_IE_LO16 },
|
|
{ BFD_RELOC_OR1K_TLS_LE_HI16, R_OR1K_TLS_LE_HI16 },
|
|
{ BFD_RELOC_OR1K_TLS_LE_LO16, R_OR1K_TLS_LE_LO16 },
|
|
};
|
|
|
|
/* The linker needs to keep track of the number of relocs that it
|
|
decides to copy as dynamic relocs in check_relocs for each symbol.
|
|
This is so that it can later discard them if they are found to be
|
|
unnecessary. We store the information in a field extending the
|
|
regular ELF linker hash table. */
|
|
|
|
struct elf_or1k_dyn_relocs
|
|
{
|
|
struct elf_or1k_dyn_relocs *next;
|
|
|
|
/* The input section of the reloc. */
|
|
asection *sec;
|
|
|
|
/* Total number of relocs copied for the input section. */
|
|
bfd_size_type count;
|
|
|
|
/* Number of pc-relative relocs copied for the input section. */
|
|
bfd_size_type pc_count;
|
|
};
|
|
|
|
#define TLS_UNKNOWN 0
|
|
#define TLS_NONE 1
|
|
#define TLS_GD 2
|
|
#define TLS_LD 3
|
|
#define TLS_IE 4
|
|
#define TLS_LE 5
|
|
|
|
/* ELF linker hash entry. */
|
|
struct elf_or1k_link_hash_entry
|
|
{
|
|
struct elf_link_hash_entry root;
|
|
|
|
/* Track dynamic relocs copied for this symbol. */
|
|
struct elf_or1k_dyn_relocs *dyn_relocs;
|
|
|
|
/* Track type of TLS access. */
|
|
unsigned char tls_type;
|
|
};
|
|
|
|
/* ELF object data. */
|
|
struct elf_or1k_obj_tdata
|
|
{
|
|
struct elf_obj_tdata root;
|
|
|
|
/* tls_type for each local got entry. */
|
|
unsigned char *local_tls_type;
|
|
};
|
|
|
|
#define elf_or1k_tdata(abfd) \
|
|
((struct elf_or1k_obj_tdata *) (abfd)->tdata.any)
|
|
|
|
#define elf_or1k_local_tls_type(abfd) \
|
|
(elf_or1k_tdata (abfd)->local_tls_type)
|
|
|
|
/* ELF linker hash table. */
|
|
struct elf_or1k_link_hash_table
|
|
{
|
|
struct elf_link_hash_table root;
|
|
|
|
/* Small local sym to section mapping cache. */
|
|
struct sym_cache sym_sec;
|
|
};
|
|
|
|
/* Get the ELF linker hash table from a link_info structure. */
|
|
#define or1k_elf_hash_table(p) \
|
|
(elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
|
|
== OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL)
|
|
|
|
static bfd_boolean
|
|
elf_or1k_mkobject (bfd *abfd)
|
|
{
|
|
return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata),
|
|
OR1K_ELF_DATA);
|
|
}
|
|
|
|
/* Create an entry in an or1k ELF linker hash table. */
|
|
|
|
static struct bfd_hash_entry *
|
|
or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
|
|
struct bfd_hash_table *table,
|
|
const char *string)
|
|
{
|
|
struct elf_or1k_link_hash_entry *ret =
|
|
(struct elf_or1k_link_hash_entry *) entry;
|
|
|
|
/* Allocate the structure if it has not already been allocated by a
|
|
subclass. */
|
|
if (ret == NULL)
|
|
ret = bfd_hash_allocate (table,
|
|
sizeof (struct elf_or1k_link_hash_entry));
|
|
if (ret == NULL)
|
|
return NULL;
|
|
|
|
/* Call the allocation method of the superclass. */
|
|
ret = ((struct elf_or1k_link_hash_entry *)
|
|
_bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
|
|
table, string));
|
|
if (ret != NULL)
|
|
{
|
|
struct elf_or1k_link_hash_entry *eh;
|
|
|
|
eh = (struct elf_or1k_link_hash_entry *) ret;
|
|
eh->dyn_relocs = NULL;
|
|
eh->tls_type = TLS_UNKNOWN;
|
|
}
|
|
|
|
return (struct bfd_hash_entry *) ret;
|
|
}
|
|
|
|
/* Create an or1k ELF linker hash table. */
|
|
|
|
static struct bfd_link_hash_table *
|
|
or1k_elf_link_hash_table_create (bfd *abfd)
|
|
{
|
|
struct elf_or1k_link_hash_table *ret;
|
|
bfd_size_type amt = sizeof (struct elf_or1k_link_hash_table);
|
|
|
|
ret = bfd_zmalloc (amt);
|
|
if (ret == NULL)
|
|
return NULL;
|
|
|
|
if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
|
|
or1k_elf_link_hash_newfunc,
|
|
sizeof (struct elf_or1k_link_hash_entry),
|
|
OR1K_ELF_DATA))
|
|
{
|
|
free (ret);
|
|
return NULL;
|
|
}
|
|
|
|
return &ret->root.root;
|
|
}
|
|
|
|
static reloc_howto_type *
|
|
or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
|
|
bfd_reloc_code_real_type code)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = ARRAY_SIZE (or1k_reloc_map); i--;)
|
|
if (or1k_reloc_map[i].bfd_reloc_val == code)
|
|
return & or1k_elf_howto_table[or1k_reloc_map[i].or1k_reloc_val];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static reloc_howto_type *
|
|
or1k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
|
const char *r_name)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0;
|
|
i < (sizeof (or1k_elf_howto_table)
|
|
/ sizeof (or1k_elf_howto_table[0]));
|
|
i++)
|
|
if (or1k_elf_howto_table[i].name != NULL
|
|
&& strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0)
|
|
return &or1k_elf_howto_table[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Set the howto pointer for an Or1k ELF reloc. */
|
|
|
|
static void
|
|
or1k_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);
|
|
if (r_type >= (unsigned int) R_OR1K_max)
|
|
{
|
|
/* xgettext:c-format */
|
|
_bfd_error_handler (_("%B: invalid OR1K reloc number: %d"), abfd, r_type);
|
|
r_type = 0;
|
|
}
|
|
cache_ptr->howto = & or1k_elf_howto_table[r_type];
|
|
}
|
|
|
|
|
|
/* Return the relocation value for @tpoff relocations.. */
|
|
static bfd_vma
|
|
tpoff (struct bfd_link_info *info, bfd_vma address)
|
|
{
|
|
/* If tls_sec is NULL, we should have signalled an error already. */
|
|
if (elf_hash_table (info)->tls_sec == NULL)
|
|
return 0;
|
|
|
|
/* The thread pointer on or1k stores the address after the TCB where
|
|
the data is, just compute the difference. No need to compensate
|
|
for the size of TCB. */
|
|
return (address - elf_hash_table (info)->tls_sec->vma);
|
|
}
|
|
|
|
/* Relocate an Or1k 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
|
|
or1k_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;
|
|
struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info);
|
|
bfd *dynobj;
|
|
asection *sreloc;
|
|
bfd_vma *local_got_offsets;
|
|
asection *sgot;
|
|
|
|
if (htab == NULL)
|
|
return FALSE;
|
|
|
|
dynobj = htab->root.dynobj;
|
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
|
|
|
sreloc = elf_section_data (input_section)->sreloc;
|
|
|
|
sgot = htab->root.sgot;
|
|
|
|
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);
|
|
|
|
if (r_type == R_OR1K_GNU_VTINHERIT
|
|
|| r_type == R_OR1K_GNU_VTENTRY)
|
|
continue;
|
|
|
|
if (r_type < 0 || r_type >= (int) R_OR1K_max)
|
|
{
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
}
|
|
|
|
howto = or1k_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);
|
|
}
|
|
|
|
if (sec != NULL && discarded_section (sec))
|
|
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
|
|
rel, 1, relend, howto, 0, contents);
|
|
|
|
if (bfd_link_relocatable (info))
|
|
continue;
|
|
|
|
switch (howto->type)
|
|
{
|
|
case R_OR1K_PLT26:
|
|
{
|
|
if (htab->root.splt != NULL && h != NULL
|
|
&& h->plt.offset != (bfd_vma) -1)
|
|
{
|
|
relocation = (htab->root.splt->output_section->vma
|
|
+ htab->root.splt->output_offset
|
|
+ h->plt.offset);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case R_OR1K_GOT16:
|
|
/* Relocation is to the entry for this symbol in the global
|
|
offset table. */
|
|
BFD_ASSERT (sgot != NULL);
|
|
if (h != NULL)
|
|
{
|
|
bfd_boolean dyn;
|
|
bfd_vma off;
|
|
|
|
off = h->got.offset;
|
|
BFD_ASSERT (off != (bfd_vma) -1);
|
|
|
|
dyn = htab->root.dynamic_sections_created;
|
|
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
|
|
bfd_link_pic (info),
|
|
h)
|
|
|| (bfd_link_pic (info)
|
|
&& SYMBOL_REFERENCES_LOCAL (info, h)))
|
|
{
|
|
/* This is actually a static link, or it is a
|
|
-Bsymbolic link and the symbol is defined
|
|
locally, or the symbol was forced to be local
|
|
because of a version file. We must initialize
|
|
this entry in the global offset table. Since the
|
|
offset must always be a multiple of 4, we use the
|
|
least significant bit to record whether we have
|
|
initialized it already.
|
|
|
|
When doing a dynamic link, we create a .rela.got
|
|
relocation entry to initialize the value. This
|
|
is done in the finish_dynamic_symbol routine. */
|
|
if ((off & 1) != 0)
|
|
off &= ~1;
|
|
else
|
|
{
|
|
/* Write entry in GOT. */
|
|
bfd_put_32 (output_bfd, relocation,
|
|
sgot->contents + off);
|
|
/* Mark GOT entry as having been written. */
|
|
h->got.offset |= 1;
|
|
}
|
|
}
|
|
|
|
relocation = sgot->output_offset + off;
|
|
}
|
|
else
|
|
{
|
|
bfd_vma off;
|
|
bfd_byte *loc;
|
|
|
|
BFD_ASSERT (local_got_offsets != NULL
|
|
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
|
|
|
|
/* Get offset into GOT table. */
|
|
off = local_got_offsets[r_symndx];
|
|
|
|
/* The offset must always be a multiple of 4. We use
|
|
the least significant bit to record whether we have
|
|
already processed this entry. */
|
|
if ((off & 1) != 0)
|
|
off &= ~1;
|
|
else
|
|
{
|
|
/* Write entry in GOT. */
|
|
bfd_put_32 (output_bfd, relocation, sgot->contents + off);
|
|
if (bfd_link_pic (info))
|
|
{
|
|
asection *srelgot;
|
|
Elf_Internal_Rela outrel;
|
|
|
|
/* We need to generate a R_OR1K_RELATIVE reloc
|
|
for the dynamic linker. */
|
|
srelgot = htab->root.srelgot;
|
|
BFD_ASSERT (srelgot != NULL);
|
|
|
|
outrel.r_offset = (sgot->output_section->vma
|
|
+ sgot->output_offset
|
|
+ off);
|
|
outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
|
|
outrel.r_addend = relocation;
|
|
loc = srelgot->contents;
|
|
loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
|
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
|
|
++srelgot->reloc_count;
|
|
}
|
|
|
|
local_got_offsets[r_symndx] |= 1;
|
|
}
|
|
relocation = sgot->output_offset + off;
|
|
}
|
|
|
|
/* Addend should be zero. */
|
|
if (rel->r_addend != 0)
|
|
_bfd_error_handler
|
|
(_("internal error: addend should be zero for R_OR1K_GOT16"));
|
|
|
|
break;
|
|
|
|
case R_OR1K_GOTOFF_LO16:
|
|
case R_OR1K_GOTOFF_HI16:
|
|
/* Relocation is offset from GOT. */
|
|
BFD_ASSERT (sgot != NULL);
|
|
relocation
|
|
-= (htab->root.hgot->root.u.def.value
|
|
+ htab->root.hgot->root.u.def.section->output_offset
|
|
+ htab->root.hgot->root.u.def.section->output_section->vma);
|
|
break;
|
|
|
|
case R_OR1K_INSN_REL_26:
|
|
case R_OR1K_HI_16_IN_INSN:
|
|
case R_OR1K_LO_16_IN_INSN:
|
|
case R_OR1K_32:
|
|
/* R_OR1K_16? */
|
|
{
|
|
/* r_symndx will be STN_UNDEF (zero) only for relocs against symbols
|
|
from removed linkonce sections, or sections discarded by
|
|
a linker script. */
|
|
if (r_symndx == STN_UNDEF
|
|
|| (input_section->flags & SEC_ALLOC) == 0)
|
|
break;
|
|
|
|
if ((bfd_link_pic (info)
|
|
&& (h == NULL
|
|
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
|
|| h->root.type != bfd_link_hash_undefweak)
|
|
&& (howto->type != R_OR1K_INSN_REL_26
|
|
|| !SYMBOL_CALLS_LOCAL (info, h)))
|
|
|| (!bfd_link_pic (info)
|
|
&& h != NULL
|
|
&& h->dynindx != -1
|
|
&& !h->non_got_ref
|
|
&& ((h->def_dynamic
|
|
&& !h->def_regular)
|
|
|| h->root.type == bfd_link_hash_undefweak
|
|
|| h->root.type == bfd_link_hash_undefined)))
|
|
{
|
|
Elf_Internal_Rela outrel;
|
|
bfd_byte *loc;
|
|
bfd_boolean skip;
|
|
|
|
/* When generating a shared object, these relocations
|
|
are copied into the output file to be resolved at run
|
|
time. */
|
|
|
|
BFD_ASSERT (sreloc != NULL);
|
|
|
|
skip = FALSE;
|
|
|
|
outrel.r_offset =
|
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
|
rel->r_offset);
|
|
if (outrel.r_offset == (bfd_vma) -1)
|
|
skip = TRUE;
|
|
else if (outrel.r_offset == (bfd_vma) -2)
|
|
skip = TRUE;
|
|
outrel.r_offset += (input_section->output_section->vma
|
|
+ input_section->output_offset);
|
|
|
|
if (skip)
|
|
memset (&outrel, 0, sizeof outrel);
|
|
/* h->dynindx may be -1 if the symbol was marked to
|
|
become local. */
|
|
else if (h != NULL
|
|
&& ((! info->symbolic && h->dynindx != -1)
|
|
|| !h->def_regular))
|
|
{
|
|
BFD_ASSERT (h->dynindx != -1);
|
|
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
|
|
outrel.r_addend = rel->r_addend;
|
|
}
|
|
else
|
|
{
|
|
if (r_type == R_OR1K_32)
|
|
{
|
|
outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
|
|
outrel.r_addend = relocation + rel->r_addend;
|
|
}
|
|
else
|
|
{
|
|
BFD_FAIL ();
|
|
_bfd_error_handler
|
|
(_("%B: probably compiled without -fPIC?"),
|
|
input_bfd);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
loc = sreloc->contents;
|
|
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
|
|
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case R_OR1K_TLS_LDM_HI16:
|
|
case R_OR1K_TLS_LDM_LO16:
|
|
case R_OR1K_TLS_LDO_HI16:
|
|
case R_OR1K_TLS_LDO_LO16:
|
|
/* TODO: implement support for local dynamic. */
|
|
BFD_FAIL ();
|
|
_bfd_error_handler
|
|
(_("%B: support for local dynamic not implemented"),
|
|
input_bfd);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
|
|
|
|
case R_OR1K_TLS_GD_HI16:
|
|
case R_OR1K_TLS_GD_LO16:
|
|
case R_OR1K_TLS_IE_HI16:
|
|
case R_OR1K_TLS_IE_LO16:
|
|
{
|
|
bfd_vma gotoff;
|
|
Elf_Internal_Rela rela;
|
|
bfd_byte *loc;
|
|
int dynamic;
|
|
|
|
sreloc = bfd_get_section_by_name (dynobj, ".rela.got");
|
|
|
|
/* Mark as TLS related GOT entry by setting
|
|
bit 2 as well as bit 1. */
|
|
if (h != NULL)
|
|
{
|
|
gotoff = h->got.offset;
|
|
h->got.offset |= 3;
|
|
}
|
|
else
|
|
{
|
|
gotoff = local_got_offsets[r_symndx];
|
|
local_got_offsets[r_symndx] |= 3;
|
|
}
|
|
|
|
/* Only process the relocation once. */
|
|
if (gotoff & 1)
|
|
{
|
|
relocation = sgot->output_offset + (gotoff & ~3);
|
|
break;
|
|
}
|
|
|
|
BFD_ASSERT (elf_hash_table (info)->hgot == NULL
|
|
|| elf_hash_table (info)->hgot->root.u.def.value == 0);
|
|
|
|
/* Dynamic entries will require relocations. if we do not need
|
|
them we will just use the default R_OR1K_NONE and
|
|
not set anything. */
|
|
dynamic = bfd_link_pic (info)
|
|
|| (sec && (sec->flags & SEC_ALLOC) != 0
|
|
&& h != NULL
|
|
&& (h->root.type == bfd_link_hash_defweak || !h->def_regular));
|
|
|
|
/* Shared GD. */
|
|
if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16
|
|
|| howto->type == R_OR1K_TLS_GD_LO16))
|
|
{
|
|
int i;
|
|
|
|
/* Add DTPMOD and DTPOFF GOT and rela entries. */
|
|
for (i = 0; i < 2; ++i)
|
|
{
|
|
rela.r_offset = sgot->output_section->vma +
|
|
sgot->output_offset + gotoff + i*4;
|
|
if (h != NULL && h->dynindx != -1)
|
|
{
|
|
rela.r_info = ELF32_R_INFO (h->dynindx,
|
|
(i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
|
|
rela.r_addend = 0;
|
|
}
|
|
else
|
|
{
|
|
rela.r_info = ELF32_R_INFO (0,
|
|
(i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF));
|
|
rela.r_addend = tpoff (info, relocation);
|
|
}
|
|
|
|
loc = sreloc->contents;
|
|
loc += sreloc->reloc_count++ *
|
|
sizeof (Elf32_External_Rela);
|
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
|
bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4);
|
|
}
|
|
}
|
|
/* Static GD. */
|
|
else if (howto->type == R_OR1K_TLS_GD_HI16
|
|
|| howto->type == R_OR1K_TLS_GD_LO16)
|
|
{
|
|
bfd_put_32 (output_bfd, 1, sgot->contents + gotoff);
|
|
bfd_put_32 (output_bfd, tpoff (info, relocation),
|
|
sgot->contents + gotoff + 4);
|
|
}
|
|
/* Shared IE. */
|
|
else if (dynamic)
|
|
{
|
|
/* Add TPOFF GOT and rela entries. */
|
|
rela.r_offset = sgot->output_section->vma +
|
|
sgot->output_offset + gotoff;
|
|
if (h != NULL && h->dynindx != -1)
|
|
{
|
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF);
|
|
rela.r_addend = 0;
|
|
}
|
|
else
|
|
{
|
|
rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF);
|
|
rela.r_addend = tpoff (info, relocation);
|
|
}
|
|
|
|
loc = sreloc->contents;
|
|
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
|
|
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
|
bfd_put_32 (output_bfd, 0, sgot->contents + gotoff);
|
|
}
|
|
/* Static IE. */
|
|
else
|
|
{
|
|
bfd_put_32 (output_bfd, tpoff (info, relocation),
|
|
sgot->contents + gotoff);
|
|
}
|
|
relocation = sgot->output_offset + gotoff;
|
|
break;
|
|
}
|
|
case R_OR1K_TLS_LE_HI16:
|
|
case R_OR1K_TLS_LE_LO16:
|
|
|
|
/* Relocation is offset from TP. */
|
|
relocation = tpoff (info, relocation);
|
|
break;
|
|
|
|
case R_OR1K_TLS_DTPMOD:
|
|
case R_OR1K_TLS_DTPOFF:
|
|
case R_OR1K_TLS_TPOFF:
|
|
/* These are resolved dynamically on load and shouldn't
|
|
be used as linker input. */
|
|
BFD_FAIL ();
|
|
_bfd_error_handler
|
|
(_("%B: will not resolve runtime TLS relocation"),
|
|
input_bfd);
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents,
|
|
rel->r_offset, relocation, rel->r_addend);
|
|
|
|
if (r != bfd_reloc_ok)
|
|
{
|
|
const char *msg = NULL;
|
|
|
|
switch (r)
|
|
{
|
|
case bfd_reloc_overflow:
|
|
(*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:
|
|
(*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)
|
|
(*info->callbacks->warning) (info, msg, name, input_bfd,
|
|
input_section, rel->r_offset);
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Return the section that should be marked against GC for a given
|
|
relocation. */
|
|
|
|
static asection *
|
|
or1k_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_OR1K_GNU_VTINHERIT:
|
|
case R_OR1K_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. */
|
|
|
|
static bfd_boolean
|
|
or1k_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;
|
|
struct elf_or1k_link_hash_table *htab;
|
|
bfd *dynobj;
|
|
asection *sreloc = NULL;
|
|
|
|
if (bfd_link_relocatable (info))
|
|
return TRUE;
|
|
|
|
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
|
|
sym_hashes = elf_sym_hashes (abfd);
|
|
|
|
htab = or1k_elf_hash_table (info);
|
|
if (htab == NULL)
|
|
return FALSE;
|
|
|
|
dynobj = htab->root.dynobj;
|
|
|
|
rel_end = relocs + sec->reloc_count;
|
|
for (rel = relocs; rel < rel_end; rel++)
|
|
{
|
|
struct elf_link_hash_entry *h;
|
|
unsigned long r_symndx;
|
|
unsigned char tls_type;
|
|
|
|
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_regular = 1;
|
|
}
|
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
|
{
|
|
case R_OR1K_TLS_GD_HI16:
|
|
case R_OR1K_TLS_GD_LO16:
|
|
tls_type = TLS_GD;
|
|
break;
|
|
case R_OR1K_TLS_LDM_HI16:
|
|
case R_OR1K_TLS_LDM_LO16:
|
|
case R_OR1K_TLS_LDO_HI16:
|
|
case R_OR1K_TLS_LDO_LO16:
|
|
tls_type = TLS_LD;
|
|
break;
|
|
case R_OR1K_TLS_IE_HI16:
|
|
case R_OR1K_TLS_IE_LO16:
|
|
tls_type = TLS_IE;
|
|
break;
|
|
case R_OR1K_TLS_LE_HI16:
|
|
case R_OR1K_TLS_LE_LO16:
|
|
tls_type = TLS_LE;
|
|
break;
|
|
default:
|
|
tls_type = TLS_NONE;
|
|
}
|
|
|
|
/* Record TLS type. */
|
|
if (h != NULL)
|
|
((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type;
|
|
else
|
|
{
|
|
unsigned char *local_tls_type;
|
|
|
|
/* This is a TLS type record for a local symbol. */
|
|
local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd);
|
|
if (local_tls_type == NULL)
|
|
{
|
|
bfd_size_type size;
|
|
|
|
size = symtab_hdr->sh_info;
|
|
local_tls_type = bfd_zalloc (abfd, size);
|
|
if (local_tls_type == NULL)
|
|
return FALSE;
|
|
elf_or1k_local_tls_type (abfd) = local_tls_type;
|
|
}
|
|
local_tls_type[r_symndx] = tls_type;
|
|
}
|
|
|
|
switch (ELF32_R_TYPE (rel->r_info))
|
|
{
|
|
/* This relocation describes the C++ object vtable hierarchy.
|
|
Reconstruct it for later use during GC. */
|
|
case R_OR1K_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_OR1K_GNU_VTENTRY:
|
|
BFD_ASSERT (h != NULL);
|
|
if (h != NULL
|
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
|
return FALSE;
|
|
break;
|
|
|
|
/* This relocation requires .plt entry. */
|
|
case R_OR1K_PLT26:
|
|
if (h != NULL)
|
|
{
|
|
h->needs_plt = 1;
|
|
h->plt.refcount += 1;
|
|
}
|
|
break;
|
|
|
|
case R_OR1K_GOT16:
|
|
case R_OR1K_GOTOFF_HI16:
|
|
case R_OR1K_GOTOFF_LO16:
|
|
case R_OR1K_TLS_GD_HI16:
|
|
case R_OR1K_TLS_GD_LO16:
|
|
case R_OR1K_TLS_IE_HI16:
|
|
case R_OR1K_TLS_IE_LO16:
|
|
if (htab->root.sgot == NULL)
|
|
{
|
|
if (dynobj == NULL)
|
|
htab->root.dynobj = dynobj = abfd;
|
|
if (!_bfd_elf_create_got_section (dynobj, info))
|
|
return FALSE;
|
|
}
|
|
|
|
if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 &&
|
|
ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16)
|
|
{
|
|
if (h != NULL)
|
|
h->got.refcount += 1;
|
|
else
|
|
{
|
|
bfd_signed_vma *local_got_refcounts;
|
|
|
|
/* This is a global offset table entry for a local symbol. */
|
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
|
if (local_got_refcounts == NULL)
|
|
{
|
|
bfd_size_type size;
|
|
|
|
size = symtab_hdr->sh_info;
|
|
size *= sizeof (bfd_signed_vma);
|
|
local_got_refcounts = bfd_zalloc (abfd, size);
|
|
if (local_got_refcounts == NULL)
|
|
return FALSE;
|
|
elf_local_got_refcounts (abfd) = local_got_refcounts;
|
|
}
|
|
local_got_refcounts[r_symndx] += 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case R_OR1K_INSN_REL_26:
|
|
case R_OR1K_HI_16_IN_INSN:
|
|
case R_OR1K_LO_16_IN_INSN:
|
|
case R_OR1K_32:
|
|
/* R_OR1K_16? */
|
|
{
|
|
if (h != NULL && !bfd_link_pic (info))
|
|
{
|
|
/* We may need a copy reloc. */
|
|
h->non_got_ref = 1;
|
|
|
|
/* We may also need a .plt entry. */
|
|
h->plt.refcount += 1;
|
|
if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26)
|
|
h->pointer_equality_needed = 1;
|
|
}
|
|
|
|
/* If we are creating a shared library, and this is a reloc
|
|
against a global symbol, or a non PC relative reloc
|
|
against a local symbol, then we need to copy the reloc
|
|
into the shared library. However, if we are linking with
|
|
-Bsymbolic, we do not need to copy a reloc against a
|
|
global symbol which is defined in an object we are
|
|
including in the link (i.e., DEF_REGULAR is set). At
|
|
this point we have not seen all the input files, so it is
|
|
possible that DEF_REGULAR is not set now but will be set
|
|
later (it is never cleared). In case of a weak definition,
|
|
DEF_REGULAR may be cleared later by a strong definition in
|
|
a shared library. We account for that possibility below by
|
|
storing information in the relocs_copied field of the hash
|
|
table entry. A similar situation occurs when creating
|
|
shared libraries and symbol visibility changes render the
|
|
symbol local.
|
|
|
|
If on the other hand, we are creating an executable, we
|
|
may need to keep relocations for symbols satisfied by a
|
|
dynamic library if we manage to avoid copy relocs for the
|
|
symbol. */
|
|
|
|
if ((bfd_link_pic (info)
|
|
&& (sec->flags & SEC_ALLOC) != 0
|
|
&& (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26
|
|
|| (h != NULL
|
|
&& (!SYMBOLIC_BIND (info, h)
|
|
|| h->root.type == bfd_link_hash_defweak
|
|
|| !h->def_regular))))
|
|
|| (!bfd_link_pic (info)
|
|
&& (sec->flags & SEC_ALLOC) != 0
|
|
&& h != NULL
|
|
&& (h->root.type == bfd_link_hash_defweak
|
|
|| !h->def_regular)))
|
|
{
|
|
struct elf_or1k_dyn_relocs *p;
|
|
struct elf_or1k_dyn_relocs **head;
|
|
|
|
/* When creating a shared object, we must copy these
|
|
relocs into the output file. We create a reloc
|
|
section in dynobj and make room for the reloc. */
|
|
if (sreloc == NULL)
|
|
{
|
|
const char *name;
|
|
unsigned int strndx = elf_elfheader (abfd)->e_shstrndx;
|
|
unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name;
|
|
|
|
name = bfd_elf_string_from_elf_section (abfd, strndx, shnam);
|
|
if (name == NULL)
|
|
return FALSE;
|
|
|
|
if (strncmp (name, ".rela", 5) != 0
|
|
|| strcmp (bfd_get_section_name (abfd, sec),
|
|
name + 5) != 0)
|
|
{
|
|
_bfd_error_handler
|
|
/* xgettext:c-format */
|
|
(_("%B: bad relocation section name `%s\'"),
|
|
abfd, name);
|
|
}
|
|
|
|
if (htab->root.dynobj == NULL)
|
|
htab->root.dynobj = abfd;
|
|
dynobj = htab->root.dynobj;
|
|
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
|
if (sreloc == NULL)
|
|
{
|
|
sreloc = _bfd_elf_make_dynamic_reloc_section
|
|
(sec, dynobj, 2, abfd, /*rela?*/ TRUE);
|
|
|
|
if (sreloc == NULL)
|
|
return FALSE;
|
|
}
|
|
elf_section_data (sec)->sreloc = sreloc;
|
|
}
|
|
|
|
/* If this is a global symbol, we count the number of
|
|
relocations we need for this symbol. */
|
|
if (h != NULL)
|
|
head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs;
|
|
else
|
|
{
|
|
/* Track dynamic relocs needed for local syms too.
|
|
We really need local syms available to do this
|
|
easily. Oh well. */
|
|
|
|
asection *s;
|
|
Elf_Internal_Sym *isym;
|
|
void *vpp;
|
|
|
|
isym = bfd_sym_from_r_symndx (&htab->sym_sec,
|
|
abfd, r_symndx);
|
|
if (isym == NULL)
|
|
return FALSE;
|
|
|
|
s = bfd_section_from_elf_index (abfd, isym->st_shndx);
|
|
if (s == NULL)
|
|
return FALSE;
|
|
|
|
vpp = &elf_section_data (s)->local_dynrel;
|
|
head = (struct elf_or1k_dyn_relocs **) vpp;
|
|
}
|
|
|
|
p = *head;
|
|
if (p == NULL || p->sec != sec)
|
|
{
|
|
bfd_size_type amt = sizeof *p;
|
|
p = ((struct elf_or1k_dyn_relocs *)
|
|
bfd_alloc (htab->root.dynobj, amt));
|
|
if (p == NULL)
|
|
return FALSE;
|
|
p->next = *head;
|
|
*head = p;
|
|
p->sec = sec;
|
|
p->count = 0;
|
|
p->pc_count = 0;
|
|
}
|
|
|
|
p->count += 1;
|
|
if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26)
|
|
p->pc_count += 1;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Finish up the dynamic sections. */
|
|
|
|
static bfd_boolean
|
|
or1k_elf_finish_dynamic_sections (bfd *output_bfd,
|
|
struct bfd_link_info *info)
|
|
{
|
|
bfd *dynobj;
|
|
asection *sdyn, *sgot;
|
|
struct elf_or1k_link_hash_table *htab;
|
|
|
|
htab = or1k_elf_hash_table (info);
|
|
if (htab == NULL)
|
|
return FALSE;
|
|
|
|
dynobj = htab->root.dynobj;
|
|
|
|
sgot = htab->root.sgotplt;
|
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
|
|
|
if (htab->root.dynamic_sections_created)
|
|
{
|
|
asection *splt;
|
|
Elf32_External_Dyn *dyncon, *dynconend;
|
|
|
|
BFD_ASSERT (sgot != NULL && sdyn != NULL);
|
|
|
|
dyncon = (Elf32_External_Dyn *) sdyn->contents;
|
|
dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
|
|
|
|
for (; dyncon < dynconend; dyncon++)
|
|
{
|
|
Elf_Internal_Dyn dyn;
|
|
asection *s;
|
|
|
|
bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
|
|
|
|
switch (dyn.d_tag)
|
|
{
|
|
default:
|
|
continue;
|
|
|
|
case DT_PLTGOT:
|
|
s = htab->root.sgotplt;
|
|
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
|
|
break;
|
|
|
|
case DT_JMPREL:
|
|
s = htab->root.srelplt;
|
|
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
|
|
break;
|
|
|
|
case DT_PLTRELSZ:
|
|
s = htab->root.srelplt;
|
|
dyn.d_un.d_val = s->size;
|
|
break;
|
|
}
|
|
bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
|
|
}
|
|
|
|
|
|
/* Fill in the first entry in the procedure linkage table. */
|
|
splt = htab->root.splt;
|
|
if (splt && splt->size > 0)
|
|
{
|
|
if (bfd_link_pic (info))
|
|
{
|
|
bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0,
|
|
splt->contents);
|
|
bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1,
|
|
splt->contents + 4);
|
|
bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2,
|
|
splt->contents + 8);
|
|
bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3,
|
|
splt->contents + 12);
|
|
bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4,
|
|
splt->contents + 16);
|
|
}
|
|
else
|
|
{
|
|
unsigned long addr;
|
|
/* addr = .got + 4 */
|
|
addr = sgot->output_section->vma + sgot->output_offset + 4;
|
|
bfd_put_32 (output_bfd,
|
|
PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
|
|
splt->contents);
|
|
bfd_put_32 (output_bfd,
|
|
PLT0_ENTRY_WORD1 | (addr & 0xffff),
|
|
splt->contents + 4);
|
|
bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
|
|
bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
|
|
bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
|
|
}
|
|
|
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4;
|
|
}
|
|
}
|
|
|
|
/* Set the first entry in the global offset table to the address of
|
|
the dynamic section. */
|
|
if (sgot && sgot->size > 0)
|
|
{
|
|
if (sdyn == NULL)
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
|
|
else
|
|
bfd_put_32 (output_bfd,
|
|
sdyn->output_section->vma + sdyn->output_offset,
|
|
sgot->contents);
|
|
elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
|
|
}
|
|
|
|
if (htab->root.sgot && htab->root.sgot->size > 0)
|
|
elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Finish up dynamic symbol handling. We set the contents of various
|
|
dynamic sections here. */
|
|
|
|
static bfd_boolean
|
|
or1k_elf_finish_dynamic_symbol (bfd *output_bfd,
|
|
struct bfd_link_info *info,
|
|
struct elf_link_hash_entry *h,
|
|
Elf_Internal_Sym *sym)
|
|
{
|
|
struct elf_or1k_link_hash_table *htab;
|
|
bfd_byte *loc;
|
|
|
|
htab = or1k_elf_hash_table (info);
|
|
if (htab == NULL)
|
|
return FALSE;
|
|
|
|
if (h->plt.offset != (bfd_vma) -1)
|
|
{
|
|
asection *splt;
|
|
asection *sgot;
|
|
asection *srela;
|
|
|
|
bfd_vma plt_index;
|
|
bfd_vma got_offset;
|
|
bfd_vma got_addr;
|
|
Elf_Internal_Rela rela;
|
|
|
|
/* This symbol has an entry in the procedure linkage table. Set
|
|
it up. */
|
|
BFD_ASSERT (h->dynindx != -1);
|
|
|
|
splt = htab->root.splt;
|
|
sgot = htab->root.sgotplt;
|
|
srela = htab->root.srelplt;
|
|
BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
|
|
|
|
/* Get the index in the procedure linkage table which
|
|
corresponds to this symbol. This is the index of this symbol
|
|
in all the symbols for which we are making plt entries. The
|
|
first entry in the procedure linkage table is reserved. */
|
|
plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
|
|
|
|
/* Get the offset into the .got table of the entry that
|
|
corresponds to this function. Each .got entry is 4 bytes.
|
|
The first three are reserved. */
|
|
got_offset = (plt_index + 3) * 4;
|
|
got_addr = got_offset;
|
|
|
|
/* Fill in the entry in the procedure linkage table. */
|
|
if (! bfd_link_pic (info))
|
|
{
|
|
got_addr += htab->root.sgotplt->output_section->vma
|
|
+ htab->root.sgotplt->output_offset;
|
|
bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff),
|
|
splt->contents + h->plt.offset);
|
|
bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff),
|
|
splt->contents + h->plt.offset + 4);
|
|
bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2,
|
|
splt->contents + h->plt.offset + 8);
|
|
bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3,
|
|
splt->contents + h->plt.offset + 12);
|
|
bfd_put_32 (output_bfd, PLT_ENTRY_WORD4
|
|
| plt_index * sizeof (Elf32_External_Rela),
|
|
splt->contents + h->plt.offset + 16);
|
|
}
|
|
else
|
|
{
|
|
bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff),
|
|
splt->contents + h->plt.offset);
|
|
bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1
|
|
| plt_index * sizeof (Elf32_External_Rela),
|
|
splt->contents + h->plt.offset + 4);
|
|
bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2,
|
|
splt->contents + h->plt.offset + 8);
|
|
bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3,
|
|
splt->contents + h->plt.offset + 12);
|
|
bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4,
|
|
splt->contents + h->plt.offset + 16);
|
|
}
|
|
|
|
/* Fill in the entry in the global offset table. */
|
|
bfd_put_32 (output_bfd,
|
|
(splt->output_section->vma
|
|
+ splt->output_offset), /* Same offset. */
|
|
sgot->contents + got_offset);
|
|
|
|
/* Fill in the entry in the .rela.plt section. */
|
|
rela.r_offset = (sgot->output_section->vma
|
|
+ sgot->output_offset
|
|
+ got_offset);
|
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT);
|
|
rela.r_addend = 0;
|
|
loc = srela->contents;
|
|
loc += plt_index * sizeof (Elf32_External_Rela);
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
|
|
|
if (!h->def_regular)
|
|
{
|
|
/* Mark the symbol as undefined, rather than as defined in
|
|
the .plt section. Leave the value alone. */
|
|
sym->st_shndx = SHN_UNDEF;
|
|
}
|
|
|
|
}
|
|
|
|
if (h->got.offset != (bfd_vma) -1
|
|
&& (h->got.offset & 2) == 0) /* Homemade TLS check. */
|
|
{
|
|
asection *sgot;
|
|
asection *srela;
|
|
Elf_Internal_Rela rela;
|
|
|
|
/* This symbol has an entry in the global offset table. Set it
|
|
up. */
|
|
sgot = htab->root.sgot;
|
|
srela = htab->root.srelgot;
|
|
BFD_ASSERT (sgot != NULL && srela != NULL);
|
|
|
|
rela.r_offset = (sgot->output_section->vma
|
|
+ sgot->output_offset
|
|
+ (h->got.offset &~ 1));
|
|
|
|
/* If this is a -Bsymbolic link, and the symbol is defined
|
|
locally, we just want to emit a RELATIVE reloc. Likewise if
|
|
the symbol was forced to be local because of a version file.
|
|
The entry in the global offset table will already have been
|
|
initialized in the relocate_section function. */
|
|
if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h))
|
|
{
|
|
rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE);
|
|
rela.r_addend = (h->root.u.def.value
|
|
+ h->root.u.def.section->output_section->vma
|
|
+ h->root.u.def.section->output_offset);
|
|
}
|
|
else
|
|
{
|
|
BFD_ASSERT ((h->got.offset & 1) == 0);
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
|
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT);
|
|
rela.r_addend = 0;
|
|
}
|
|
|
|
loc = srela->contents;
|
|
loc += srela->reloc_count * sizeof (Elf32_External_Rela);
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
|
++srela->reloc_count;
|
|
}
|
|
|
|
if (h->needs_copy)
|
|
{
|
|
asection *s;
|
|
Elf_Internal_Rela rela;
|
|
|
|
/* This symbols needs a copy reloc. Set it up. */
|
|
BFD_ASSERT (h->dynindx != -1
|
|
&& (h->root.type == bfd_link_hash_defined
|
|
|| h->root.type == bfd_link_hash_defweak));
|
|
|
|
rela.r_offset = (h->root.u.def.value
|
|
+ h->root.u.def.section->output_section->vma
|
|
+ h->root.u.def.section->output_offset);
|
|
rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY);
|
|
rela.r_addend = 0;
|
|
if (h->root.u.def.section == htab->root.sdynrelro)
|
|
s = htab->root.sreldynrelro;
|
|
else
|
|
s = htab->root.srelbss;
|
|
loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela);
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
|
++s->reloc_count;
|
|
}
|
|
|
|
/* Mark some specially defined symbols as absolute. */
|
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
|
|| h == htab->root.hgot)
|
|
sym->st_shndx = SHN_ABS;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static enum elf_reloc_type_class
|
|
or1k_elf_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_OR1K_RELATIVE: return reloc_class_relative;
|
|
case R_OR1K_JMP_SLOT: return reloc_class_plt;
|
|
case R_OR1K_COPY: return reloc_class_copy;
|
|
default: return reloc_class_normal;
|
|
}
|
|
}
|
|
|
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
|
regular object. The current definition is in some section of the
|
|
dynamic object, but we're not including those sections. We have to
|
|
change the definition to something the rest of the link can
|
|
understand. */
|
|
|
|
static bfd_boolean
|
|
or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
|
|
struct elf_link_hash_entry *h)
|
|
{
|
|
struct elf_or1k_link_hash_table *htab;
|
|
struct elf_or1k_link_hash_entry *eh;
|
|
struct elf_or1k_dyn_relocs *p;
|
|
bfd *dynobj;
|
|
asection *s, *srel;
|
|
|
|
dynobj = elf_hash_table (info)->dynobj;
|
|
|
|
/* Make sure we know what is going on here. */
|
|
BFD_ASSERT (dynobj != NULL
|
|
&& (h->needs_plt
|
|
|| h->u.weakdef != NULL
|
|
|| (h->def_dynamic
|
|
&& h->ref_regular
|
|
&& !h->def_regular)));
|
|
|
|
/* If this is a function, put it in the procedure linkage table. We
|
|
will fill in the contents of the procedure linkage table later,
|
|
when we know the address of the .got section. */
|
|
if (h->type == STT_FUNC
|
|
|| h->needs_plt)
|
|
{
|
|
if (! bfd_link_pic (info)
|
|
&& !h->def_dynamic
|
|
&& !h->ref_dynamic
|
|
&& h->root.type != bfd_link_hash_undefweak
|
|
&& h->root.type != bfd_link_hash_undefined)
|
|
{
|
|
/* This case can occur if we saw a PLT reloc in an input
|
|
file, but the symbol was never referred to by a dynamic
|
|
object. In such a case, we don't actually need to build
|
|
a procedure linkage table, and we can just do a PCREL
|
|
reloc instead. */
|
|
h->plt.offset = (bfd_vma) -1;
|
|
h->needs_plt = 0;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
else
|
|
h->plt.offset = (bfd_vma) -1;
|
|
|
|
/* If this is a weak symbol, and there is a real definition, the
|
|
processor independent code will have arranged for us to see the
|
|
real definition first, and we can just use the same value. */
|
|
if (h->u.weakdef != NULL)
|
|
{
|
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
|
return TRUE;
|
|
}
|
|
|
|
/* This is a reference to a symbol defined by a dynamic object which
|
|
is not a function. */
|
|
|
|
/* If we are creating a shared library, we must presume that the
|
|
only references to the symbol are via the global offset table.
|
|
For such cases we need not do anything here; the relocations will
|
|
be handled correctly by relocate_section. */
|
|
if (bfd_link_pic (info))
|
|
return TRUE;
|
|
|
|
/* If there are no references to this symbol that do not use the
|
|
GOT, we don't need to generate a copy reloc. */
|
|
if (!h->non_got_ref)
|
|
return TRUE;
|
|
|
|
/* If -z nocopyreloc was given, we won't generate them either. */
|
|
if (info->nocopyreloc)
|
|
{
|
|
h->non_got_ref = 0;
|
|
return TRUE;
|
|
}
|
|
|
|
eh = (struct elf_or1k_link_hash_entry *) h;
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
|
{
|
|
s = p->sec->output_section;
|
|
if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
|
|
break;
|
|
}
|
|
|
|
/* If we didn't find any dynamic relocs in sections which needs the
|
|
copy reloc, then we'll be keeping the dynamic relocs and avoiding
|
|
the copy reloc. */
|
|
if (p == NULL)
|
|
{
|
|
h->non_got_ref = 0;
|
|
return TRUE;
|
|
}
|
|
|
|
/* We must allocate the symbol in our .dynbss section, which will
|
|
become part of the .bss section of the executable. There will be
|
|
an entry for this symbol in the .dynsym section. The dynamic
|
|
object will contain position independent code, so all references
|
|
from the dynamic object to this symbol will go through the global
|
|
offset table. The dynamic linker will use the .dynsym entry to
|
|
determine the address it must put in the global offset table, so
|
|
both the dynamic object and the regular object will refer to the
|
|
same memory location for the variable. */
|
|
|
|
htab = or1k_elf_hash_table (info);
|
|
if (htab == NULL)
|
|
return FALSE;
|
|
|
|
/* We must generate a R_OR1K_COPY reloc to tell the dynamic linker
|
|
to copy the initial value out of the dynamic object and into the
|
|
runtime process image. We need to remember the offset into the
|
|
.rela.bss section we are going to use. */
|
|
if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
|
|
{
|
|
s = htab->root.sdynrelro;
|
|
srel = htab->root.sreldynrelro;
|
|
}
|
|
else
|
|
{
|
|
s = htab->root.sdynbss;
|
|
srel = htab->root.srelbss;
|
|
}
|
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
|
|
{
|
|
srel->size += sizeof (Elf32_External_Rela);
|
|
h->needs_copy = 1;
|
|
}
|
|
|
|
return _bfd_elf_adjust_dynamic_copy (info, h, s);
|
|
}
|
|
|
|
/* Allocate space in .plt, .got and associated reloc sections for
|
|
dynamic relocs. */
|
|
|
|
static bfd_boolean
|
|
allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
|
|
{
|
|
struct bfd_link_info *info;
|
|
struct elf_or1k_link_hash_table *htab;
|
|
struct elf_or1k_link_hash_entry *eh;
|
|
struct elf_or1k_dyn_relocs *p;
|
|
|
|
if (h->root.type == bfd_link_hash_indirect)
|
|
return TRUE;
|
|
|
|
info = (struct bfd_link_info *) inf;
|
|
htab = or1k_elf_hash_table (info);
|
|
if (htab == NULL)
|
|
return FALSE;
|
|
|
|
eh = (struct elf_or1k_link_hash_entry *) h;
|
|
|
|
if (htab->root.dynamic_sections_created
|
|
&& h->plt.refcount > 0)
|
|
{
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
|
if (h->dynindx == -1
|
|
&& !h->forced_local)
|
|
{
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
|
return FALSE;
|
|
}
|
|
|
|
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
|
|
{
|
|
asection *s = htab->root.splt;
|
|
|
|
/* If this is the first .plt entry, make room for the special
|
|
first entry. */
|
|
if (s->size == 0)
|
|
s->size = PLT_ENTRY_SIZE;
|
|
|
|
h->plt.offset = s->size;
|
|
|
|
/* If this symbol is not defined in a regular file, and we are
|
|
not generating a shared library, then set the symbol to this
|
|
location in the .plt. This is required to make function
|
|
pointers compare as equal between the normal executable and
|
|
the shared library. */
|
|
if (! bfd_link_pic (info)
|
|
&& !h->def_regular)
|
|
{
|
|
h->root.u.def.section = s;
|
|
h->root.u.def.value = h->plt.offset;
|
|
}
|
|
|
|
/* Make room for this entry. */
|
|
s->size += PLT_ENTRY_SIZE;
|
|
|
|
/* We also need to make an entry in the .got.plt section, which
|
|
will be placed in the .got section by the linker script. */
|
|
htab->root.sgotplt->size += 4;
|
|
|
|
/* We also need to make an entry in the .rel.plt section. */
|
|
htab->root.srelplt->size += sizeof (Elf32_External_Rela);
|
|
}
|
|
else
|
|
{
|
|
h->plt.offset = (bfd_vma) -1;
|
|
h->needs_plt = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
h->plt.offset = (bfd_vma) -1;
|
|
h->needs_plt = 0;
|
|
}
|
|
|
|
if (h->got.refcount > 0)
|
|
{
|
|
asection *s;
|
|
bfd_boolean dyn;
|
|
unsigned char tls_type;
|
|
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
|
if (h->dynindx == -1
|
|
&& !h->forced_local)
|
|
{
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
|
return FALSE;
|
|
}
|
|
|
|
s = htab->root.sgot;
|
|
|
|
h->got.offset = s->size;
|
|
|
|
tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type;
|
|
|
|
/* TLS GD requires two GOT and two relocs. */
|
|
if (tls_type == TLS_GD)
|
|
s->size += 8;
|
|
else
|
|
s->size += 4;
|
|
dyn = htab->root.dynamic_sections_created;
|
|
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
|
|
{
|
|
if (tls_type == TLS_GD)
|
|
htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela);
|
|
else
|
|
htab->root.srelgot->size += sizeof (Elf32_External_Rela);
|
|
}
|
|
}
|
|
else
|
|
h->got.offset = (bfd_vma) -1;
|
|
|
|
if (eh->dyn_relocs == NULL)
|
|
return TRUE;
|
|
|
|
/* In the shared -Bsymbolic case, discard space allocated for
|
|
dynamic pc-relative relocs against symbols which turn out to be
|
|
defined in regular objects. For the normal shared case, discard
|
|
space for pc-relative relocs that have become local due to symbol
|
|
visibility changes. */
|
|
|
|
if (bfd_link_pic (info))
|
|
{
|
|
if (SYMBOL_CALLS_LOCAL (info, h))
|
|
{
|
|
struct elf_or1k_dyn_relocs **pp;
|
|
|
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
|
|
{
|
|
p->count -= p->pc_count;
|
|
p->pc_count = 0;
|
|
if (p->count == 0)
|
|
*pp = p->next;
|
|
else
|
|
pp = &p->next;
|
|
}
|
|
}
|
|
|
|
/* Also discard relocs on undefined weak syms with non-default
|
|
visibility. */
|
|
if (eh->dyn_relocs != NULL
|
|
&& h->root.type == bfd_link_hash_undefweak)
|
|
{
|
|
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
|
eh->dyn_relocs = NULL;
|
|
|
|
/* Make sure undefined weak symbols are output as a dynamic
|
|
symbol in PIEs. */
|
|
else if (h->dynindx == -1
|
|
&& !h->forced_local)
|
|
{
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* For the non-shared case, discard space for relocs against
|
|
symbols which turn out to need copy relocs or are not
|
|
dynamic. */
|
|
|
|
if (!h->non_got_ref
|
|
&& ((h->def_dynamic
|
|
&& !h->def_regular)
|
|
|| (htab->root.dynamic_sections_created
|
|
&& (h->root.type == bfd_link_hash_undefweak
|
|
|| h->root.type == bfd_link_hash_undefined))))
|
|
{
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
|
if (h->dynindx == -1
|
|
&& !h->forced_local)
|
|
{
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
|
return FALSE;
|
|
}
|
|
|
|
/* If that succeeded, we know we'll be keeping all the
|
|
relocs. */
|
|
if (h->dynindx != -1)
|
|
goto keep;
|
|
}
|
|
|
|
eh->dyn_relocs = NULL;
|
|
|
|
keep: ;
|
|
}
|
|
|
|
/* Finally, allocate space. */
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
|
{
|
|
asection *sreloc = elf_section_data (p->sec)->sreloc;
|
|
sreloc->size += p->count * sizeof (Elf32_External_Rela);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Find any dynamic relocs that apply to read-only sections. */
|
|
|
|
static bfd_boolean
|
|
readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
|
|
{
|
|
struct elf_or1k_link_hash_entry *eh;
|
|
struct elf_or1k_dyn_relocs *p;
|
|
|
|
eh = (struct elf_or1k_link_hash_entry *) h;
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
|
{
|
|
asection *s = p->sec->output_section;
|
|
|
|
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
|
{
|
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
|
|
|
info->flags |= DF_TEXTREL;
|
|
|
|
/* Not an error, just cut short the traversal. */
|
|
return FALSE;
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/* Set the sizes of the dynamic sections. */
|
|
|
|
static bfd_boolean
|
|
or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
|
|
struct bfd_link_info *info)
|
|
{
|
|
struct elf_or1k_link_hash_table *htab;
|
|
bfd *dynobj;
|
|
asection *s;
|
|
bfd_boolean relocs;
|
|
bfd *ibfd;
|
|
|
|
htab = or1k_elf_hash_table (info);
|
|
if (htab == NULL)
|
|
return FALSE;
|
|
|
|
dynobj = htab->root.dynobj;
|
|
BFD_ASSERT (dynobj != NULL);
|
|
|
|
if (htab->root.dynamic_sections_created)
|
|
{
|
|
/* Set the contents of the .interp section to the interpreter. */
|
|
if (bfd_link_executable (info) && !info->nointerp)
|
|
{
|
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
|
BFD_ASSERT (s != NULL);
|
|
s->size = sizeof ELF_DYNAMIC_INTERPRETER;
|
|
s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
|
|
}
|
|
}
|
|
|
|
/* Set up .got offsets for local syms, and space for local dynamic
|
|
relocs. */
|
|
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
|
|
{
|
|
bfd_signed_vma *local_got;
|
|
bfd_signed_vma *end_local_got;
|
|
bfd_size_type locsymcount;
|
|
Elf_Internal_Shdr *symtab_hdr;
|
|
unsigned char *local_tls_type;
|
|
asection *srel;
|
|
|
|
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
|
|
continue;
|
|
|
|
for (s = ibfd->sections; s != NULL; s = s->next)
|
|
{
|
|
struct elf_or1k_dyn_relocs *p;
|
|
|
|
for (p = ((struct elf_or1k_dyn_relocs *)
|
|
elf_section_data (s)->local_dynrel);
|
|
p != NULL;
|
|
p = p->next)
|
|
{
|
|
if (! bfd_is_abs_section (p->sec)
|
|
&& bfd_is_abs_section (p->sec->output_section))
|
|
{
|
|
/* Input section has been discarded, either because
|
|
it is a copy of a linkonce section or due to
|
|
linker script /DISCARD/, so we'll be discarding
|
|
the relocs too. */
|
|
}
|
|
else if (p->count != 0)
|
|
{
|
|
srel = elf_section_data (p->sec)->sreloc;
|
|
srel->size += p->count * sizeof (Elf32_External_Rela);
|
|
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
|
|
info->flags |= DF_TEXTREL;
|
|
}
|
|
}
|
|
}
|
|
|
|
local_got = elf_local_got_refcounts (ibfd);
|
|
if (!local_got)
|
|
continue;
|
|
|
|
symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
|
|
locsymcount = symtab_hdr->sh_info;
|
|
end_local_got = local_got + locsymcount;
|
|
s = htab->root.sgot;
|
|
srel = htab->root.srelgot;
|
|
local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd);
|
|
for (; local_got < end_local_got; ++local_got)
|
|
{
|
|
if (*local_got > 0)
|
|
{
|
|
*local_got = s->size;
|
|
|
|
/* TLS GD requires two GOT and two relocs. */
|
|
if (local_tls_type != NULL && *local_tls_type == TLS_GD)
|
|
s->size += 8;
|
|
else
|
|
s->size += 4;
|
|
if (bfd_link_pic (info))
|
|
{
|
|
if (local_tls_type != NULL && *local_tls_type == TLS_GD)
|
|
srel->size += 2 * sizeof (Elf32_External_Rela);
|
|
else
|
|
srel->size += sizeof (Elf32_External_Rela);
|
|
}
|
|
}
|
|
else
|
|
|
|
*local_got = (bfd_vma) -1;
|
|
|
|
if (local_tls_type)
|
|
++local_tls_type;
|
|
}
|
|
}
|
|
|
|
/* Allocate global sym .plt and .got entries, and space for global
|
|
sym dynamic relocs. */
|
|
elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
|
|
|
|
/* We now have determined the sizes of the various dynamic sections.
|
|
Allocate memory for them. */
|
|
relocs = FALSE;
|
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
|
{
|
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
|
continue;
|
|
|
|
if (s == htab->root.splt
|
|
|| s == htab->root.sgot
|
|
|| s == htab->root.sgotplt
|
|
|| s == htab->root.sdynbss
|
|
|| s == htab->root.sdynrelro)
|
|
{
|
|
/* Strip this section if we don't need it; see the
|
|
comment below. */
|
|
}
|
|
else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
|
|
{
|
|
if (s->size != 0 && s != htab->root.srelplt)
|
|
relocs = TRUE;
|
|
|
|
/* We use the reloc_count field as a counter if we need
|
|
to copy relocs into the output file. */
|
|
s->reloc_count = 0;
|
|
}
|
|
else
|
|
/* It's not one of our sections, so don't allocate space. */
|
|
continue;
|
|
|
|
if (s->size == 0)
|
|
{
|
|
/* If we don't need this section, strip it from the
|
|
output file. This is mostly to handle .rela.bss and
|
|
.rela.plt. We must create both sections in
|
|
create_dynamic_sections, because they must be created
|
|
before the linker maps input sections to output
|
|
sections. The linker does that before
|
|
adjust_dynamic_symbol is called, and it is that
|
|
function which decides whether anything needs to go
|
|
into these sections. */
|
|
s->flags |= SEC_EXCLUDE;
|
|
continue;
|
|
}
|
|
|
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
|
continue;
|
|
|
|
/* Allocate memory for the section contents. We use bfd_zalloc
|
|
here in case unused entries are not reclaimed before the
|
|
section's contents are written out. This should not happen,
|
|
but this way if it does, we get a R_OR1K_NONE reloc instead
|
|
of garbage. */
|
|
s->contents = bfd_zalloc (dynobj, s->size);
|
|
|
|
if (s->contents == NULL)
|
|
return FALSE;
|
|
}
|
|
|
|
if (htab->root.dynamic_sections_created)
|
|
{
|
|
/* Add some entries to the .dynamic section. We fill in the
|
|
values later, in or1k_elf_finish_dynamic_sections, but we
|
|
must add the entries now so that we get the correct size for
|
|
the .dynamic section. The DT_DEBUG entry is filled in by the
|
|
dynamic linker and used by the debugger. */
|
|
#define add_dynamic_entry(TAG, VAL) \
|
|
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
|
|
|
|
if (bfd_link_executable (info))
|
|
{
|
|
if (! add_dynamic_entry (DT_DEBUG, 0))
|
|
return FALSE;
|
|
}
|
|
|
|
if (htab->root.splt->size != 0)
|
|
{
|
|
if (! add_dynamic_entry (DT_PLTGOT, 0)
|
|
|| ! add_dynamic_entry (DT_PLTRELSZ, 0)
|
|
|| ! add_dynamic_entry (DT_PLTREL, DT_RELA)
|
|
|| ! add_dynamic_entry (DT_JMPREL, 0))
|
|
return FALSE;
|
|
}
|
|
|
|
if (relocs)
|
|
{
|
|
if (! add_dynamic_entry (DT_RELA, 0)
|
|
|| ! add_dynamic_entry (DT_RELASZ, 0)
|
|
|| ! add_dynamic_entry (DT_RELAENT,
|
|
sizeof (Elf32_External_Rela)))
|
|
return FALSE;
|
|
|
|
/* If any dynamic relocs apply to a read-only section,
|
|
then we need a DT_TEXTREL entry. */
|
|
if ((info->flags & DF_TEXTREL) == 0)
|
|
elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
|
|
info);
|
|
|
|
if ((info->flags & DF_TEXTREL) != 0)
|
|
{
|
|
if (! add_dynamic_entry (DT_TEXTREL, 0))
|
|
return FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
#undef add_dynamic_entry
|
|
return TRUE;
|
|
}
|
|
|
|
/* Copy the extra info we tack onto an elf_link_hash_entry. */
|
|
|
|
static void
|
|
or1k_elf_copy_indirect_symbol (struct bfd_link_info *info,
|
|
struct elf_link_hash_entry *dir,
|
|
struct elf_link_hash_entry *ind)
|
|
{
|
|
struct elf_or1k_link_hash_entry * edir;
|
|
struct elf_or1k_link_hash_entry * eind;
|
|
|
|
edir = (struct elf_or1k_link_hash_entry *) dir;
|
|
eind = (struct elf_or1k_link_hash_entry *) ind;
|
|
|
|
if (eind->dyn_relocs != NULL)
|
|
{
|
|
if (edir->dyn_relocs != NULL)
|
|
{
|
|
struct elf_or1k_dyn_relocs **pp;
|
|
struct elf_or1k_dyn_relocs *p;
|
|
|
|
/* Add reloc counts against the indirect sym to the direct sym
|
|
list. Merge any entries against the same section. */
|
|
for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
|
|
{
|
|
struct elf_or1k_dyn_relocs *q;
|
|
|
|
for (q = edir->dyn_relocs; q != NULL; q = q->next)
|
|
if (q->sec == p->sec)
|
|
{
|
|
q->pc_count += p->pc_count;
|
|
q->count += p->count;
|
|
*pp = p->next;
|
|
break;
|
|
}
|
|
if (q == NULL)
|
|
pp = &p->next;
|
|
}
|
|
*pp = edir->dyn_relocs;
|
|
}
|
|
|
|
edir->dyn_relocs = eind->dyn_relocs;
|
|
eind->dyn_relocs = NULL;
|
|
}
|
|
|
|
if (ind->root.type == bfd_link_hash_indirect)
|
|
{
|
|
if (dir->got.refcount <= 0)
|
|
{
|
|
edir->tls_type = eind->tls_type;
|
|
eind->tls_type = TLS_UNKNOWN;
|
|
}
|
|
}
|
|
|
|
_bfd_elf_link_hash_copy_indirect (info, dir, ind);
|
|
}
|
|
|
|
/* Set the right machine number. */
|
|
|
|
static bfd_boolean
|
|
or1k_elf_object_p (bfd *abfd)
|
|
{
|
|
unsigned long mach = bfd_mach_or1k;
|
|
|
|
if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY)
|
|
mach = bfd_mach_or1knd;
|
|
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach);
|
|
}
|
|
|
|
/* Store the machine number in the flags field. */
|
|
|
|
static void
|
|
or1k_elf_final_write_processing (bfd *abfd,
|
|
bfd_boolean linker ATTRIBUTE_UNUSED)
|
|
{
|
|
switch (bfd_get_mach (abfd))
|
|
{
|
|
default:
|
|
case bfd_mach_or1k:
|
|
break;
|
|
case bfd_mach_or1knd:
|
|
elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static bfd_boolean
|
|
or1k_elf_set_private_flags (bfd *abfd, flagword flags)
|
|
{
|
|
BFD_ASSERT (!elf_flags_init (abfd)
|
|
|| elf_elfheader (abfd)->e_flags == flags);
|
|
|
|
elf_elfheader (abfd)->e_flags = flags;
|
|
elf_flags_init (abfd) = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
/* Make sure all input files are consistent with respect to
|
|
EF_OR1K_NODELAY flag setting. */
|
|
|
|
static bfd_boolean
|
|
elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
|
|
{
|
|
bfd *obfd = info->output_bfd;
|
|
flagword out_flags;
|
|
flagword in_flags;
|
|
|
|
in_flags = elf_elfheader (ibfd)->e_flags;
|
|
out_flags = elf_elfheader (obfd)->e_flags;
|
|
|
|
if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
|
|
|| bfd_get_flavour (obfd) != bfd_target_elf_flavour)
|
|
return TRUE;
|
|
|
|
if (!elf_flags_init (obfd))
|
|
{
|
|
elf_flags_init (obfd) = TRUE;
|
|
elf_elfheader (obfd)->e_flags = in_flags;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
if (in_flags == out_flags)
|
|
return TRUE;
|
|
|
|
if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY))
|
|
{
|
|
_bfd_error_handler
|
|
(_("%B: EF_OR1K_NODELAY flag mismatch with previous modules"), ibfd);
|
|
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
#define ELF_ARCH bfd_arch_or1k
|
|
#define ELF_MACHINE_CODE EM_OR1K
|
|
#define ELF_TARGET_ID OR1K_ELF_DATA
|
|
#define ELF_MAXPAGESIZE 0x2000
|
|
|
|
#define TARGET_BIG_SYM or1k_elf32_vec
|
|
#define TARGET_BIG_NAME "elf32-or1k"
|
|
|
|
#define elf_info_to_howto_rel NULL
|
|
#define elf_info_to_howto or1k_info_to_howto_rela
|
|
#define elf_backend_relocate_section or1k_elf_relocate_section
|
|
#define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook
|
|
#define elf_backend_check_relocs or1k_elf_check_relocs
|
|
#define elf_backend_reloc_type_class or1k_elf_reloc_type_class
|
|
#define elf_backend_can_gc_sections 1
|
|
#define elf_backend_rela_normal 1
|
|
|
|
#define bfd_elf32_mkobject elf_or1k_mkobject
|
|
|
|
#define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data
|
|
#define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags
|
|
#define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup
|
|
#define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup
|
|
|
|
#define elf_backend_object_p or1k_elf_object_p
|
|
#define elf_backend_final_write_processing or1k_elf_final_write_processing
|
|
#define elf_backend_can_refcount 1
|
|
|
|
#define elf_backend_plt_readonly 1
|
|
#define elf_backend_want_got_plt 1
|
|
#define elf_backend_want_plt_sym 0
|
|
#define elf_backend_got_header_size 12
|
|
#define elf_backend_dtrel_excludes_plt 1
|
|
#define elf_backend_want_dynrelro 1
|
|
|
|
#define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create
|
|
#define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol
|
|
#define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections
|
|
#define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections
|
|
#define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections
|
|
#define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol
|
|
#define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol
|
|
|
|
#include "elf32-target.h"
|