dac1814fbe
to R_ARM_LDC_SB_G{0,1,2} respectively.
bfd/
* bfd-in2.h: Regenerate.
* elf32-arm.c (R_ARM_ALU_PC_G0_NC, R_ARM_ALU_PC_G0,
R_ARM_ALU_PC_G1_NC, R_ARM_ALU_PC_G1, R_ARM_ALU_PC_G2,
R_ARM_LDR_PC_G1, R_ARM_LDR_PC_G2, R_ARM_LDRS_PC_G0,
R_ARM_LDRS_PC_G1, R_ARM_LDRS_PC_G2, R_ARM_LDC_PC_G0,
R_ARM_LDC_PC_G1, R_ARM_LDC_PC_G2, R_ARM_ALU_SB_G0_NC,
R_ARM_ALU_SB_G0, R_ARM_ALU_SB_G1_NC, R_ARM_ALU_SB_G1,
R_ARM_ALU_SB_G2, R_ARM_LDR_SB_G0, R_ARM_LDR_SB_G1,
R_ARM_LDR_SB_G2, R_ARM_LDRS_SB_G0, R_ARM_LDRS_SB_G1,
R_ARM_LDRS_SB_G2, R_ARM_LDC_SB_G0, R_ARM_LDC_SB_G1,
R_ARM_LDC_SB_G2): New relocation types.
(R_ARM_PC13): Rename to AAELF name R_ARM_LDR_PC_G0 and
adjust HOWTO entry to be consistent with R_ARM_LDR_PC_G1
and friends.
(elf32_arm_howto_table_3): Delete; contents merged into
elf32_arm_howto_table_2.
(elf32_arm_howto_from_type): Adjust correspondingly.
(elf32_arm_reloc_map): Extend with the above relocations.
(calculate_group_reloc_mask): New function.
(identify_add_or_sub): New function.
(elf32_arm_final_link_relocate): Support for the above
relocations.
* reloc.c: Add enumeration entries for BFD_RELOC_ARM_...
codes to correspond to the above relocations.
gas/
* config/tc-arm.c (enum parse_operand_result): New.
(struct group_reloc_table_entry): New.
(enum group_reloc_type): New.
(group_reloc_table): New array.
(find_group_reloc_table_entry): New function.
(parse_shifter_operand_group_reloc): New function.
(parse_address_main): New function, incorporating code
from the old parse_address function. To be used via...
(parse_address): wrapper for parse_address_main; and
(parse_address_group_reloc): new function, likewise.
(enum operand_parse_code): New codes OP_SHG, OP_ADDRGLDR,
OP_ADDRGLDRS, OP_ADDRGLDC.
(parse_operands): Support for these new operand codes.
New macro po_misc_or_fail_no_backtrack.
(encode_arm_cp_address): Preserve group relocations.
(insns): Modify to use the above operand codes where group
relocations are permitted.
(md_apply_fix): Handle the group relocations
ALU_PC_G0_NC through LDC_SB_G2.
(tc_gen_reloc): Likewise.
(arm_force_relocation): Leave group relocations for the linker.
(arm_fix_adjustable): Likewise.
gas/testsuite/
* gas/arm/group-reloc-alu.d: New test.
* gas/arm/group-reloc-alu-encoding-bad.d: New test.
* gas/arm/group-reloc-alu-encoding-bad.l: New test.
* gas/arm/group-reloc-alu-encoding-bad.s: New test.
* gas/arm/group-reloc-alu-parsing-bad.d: New test.
* gas/arm/group-reloc-alu-parsing-bad.l: New test.
* gas/arm/group-reloc-alu-parsing-bad.s: New test.
* gas/arm/group-reloc-alu.s: New test.
* gas/arm/group-reloc-ldc.d: New test.
* gas/arm/group-reloc-ldc-encoding-bad.d: New test.
* gas/arm/group-reloc-ldc-encoding-bad.l: New test.
* gas/arm/group-reloc-ldc-encoding-bad.s: New test.
* gas/arm/group-reloc-ldc-parsing-bad.d: New test.
* gas/arm/group-reloc-ldc-parsing-bad.l: New test.
* gas/arm/group-reloc-ldc-parsing-bad.s: New test.
* gas/arm/group-reloc-ldc.s: New test.
* gas/arm/group-reloc-ldr.d: New test.
* gas/arm/group-reloc-ldr-encoding-bad.d: New test.
* gas/arm/group-reloc-ldr-encoding-bad.l: New test.
* gas/arm/group-reloc-ldr-encoding-bad.s: New test.
* gas/arm/group-reloc-ldr-parsing-bad.d: New test.
* gas/arm/group-reloc-ldr-parsing-bad.l: New test.
* gas/arm/group-reloc-ldr-parsing-bad.s: New test.
* gas/arm/group-reloc-ldr.s: New test.
* gas/arm/group-reloc-ldrs.d: New test.
* gas/arm/group-reloc-ldrs-encoding-bad.d: New test.
* gas/arm/group-reloc-ldrs-encoding-bad.l: New test.
* gas/arm/group-reloc-ldrs-encoding-bad.s: New test.
* gas/arm/group-reloc-ldrs-parsing-bad.d: New test.
* gas/arm/group-reloc-ldrs-parsing-bad.l: New test.
* gas/arm/group-reloc-ldrs-parsing-bad.s: New test.
* gas/arm/group-reloc-ldrs.s: New test.
ld/testsuite/
* ld-arm/group-relocs-alu-bad.d: New test.
* ld-arm/group-relocs-alu-bad.s: New test.
* ld-arm/group-relocs.d: New test.
* ld-arm/group-relocs-ldc-bad.d: New test.
* ld-arm/group-relocs-ldc-bad.s: New test.
* ld-arm/group-relocs-ldr-bad.d: New test.
* ld-arm/group-relocs-ldr-bad.s: New test.
* ld-arm/group-relocs-ldrs-bad.d: New test.
* ld-arm/group-relocs-ldrs-bad.s: New test.
* ld-arm/group-relocs.s: New test.
* ld-arm/arm-elf.exp: Wire in new tests.
285 lines
12 KiB
C
285 lines
12 KiB
C
/* ARM ELF support for BFD.
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Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004
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Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifndef _ELF_ARM_H
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#define _ELF_ARM_H
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#include "elf/reloc-macros.h"
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/* Processor specific flags for the ELF header e_flags field. */
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#define EF_ARM_RELEXEC 0x01
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#define EF_ARM_HASENTRY 0x02
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#define EF_ARM_INTERWORK 0x04
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#define EF_ARM_APCS_26 0x08
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#define EF_ARM_APCS_FLOAT 0x10
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#define EF_ARM_PIC 0x20
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#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use. */
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#define EF_ARM_NEW_ABI 0x80
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#define EF_ARM_OLD_ABI 0x100
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#define EF_ARM_SOFT_FLOAT 0x200
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#define EF_ARM_VFP_FLOAT 0x400
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#define EF_ARM_MAVERICK_FLOAT 0x800
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/* Frame unwind information */
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#define PT_ARM_EXIDX (PT_LOPROC + 1)
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/* Other constants defined in the ARM ELF spec. version B-01. */
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#define EF_ARM_SYMSARESORTED 0x04 /* NB conflicts with EF_INTERWORK */
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#define EF_ARM_DYNSYMSUSESEGIDX 0x08 /* NB conflicts with EF_APCS26 */
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#define EF_ARM_MAPSYMSFIRST 0x10 /* NB conflicts with EF_APCS_FLOAT */
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#define EF_ARM_EABIMASK 0xFF000000
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/* Constants defined in AAELF. */
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#define EF_ARM_BE8 0x00800000
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#define EF_ARM_LE8 0x00400000
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#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
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#define EF_ARM_EABI_UNKNOWN 0x00000000
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#define EF_ARM_EABI_VER1 0x01000000
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#define EF_ARM_EABI_VER2 0x02000000
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#define EF_ARM_EABI_VER3 0x03000000
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#define EF_ARM_EABI_VER4 0x04000000
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#define EF_ARM_EABI_VER5 0x05000000
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/* Local aliases for some flags to match names used by COFF port. */
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#define F_INTERWORK EF_ARM_INTERWORK
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#define F_APCS26 EF_ARM_APCS_26
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#define F_APCS_FLOAT EF_ARM_APCS_FLOAT
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#define F_PIC EF_ARM_PIC
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#define F_SOFT_FLOAT EF_ARM_SOFT_FLOAT
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#define F_VFP_FLOAT EF_ARM_VFP_FLOAT
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/* Additional symbol types for Thumb. */
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#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
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#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
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/* Additional section types. */
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#define SHT_ARM_EXIDX 0x70000001 /* Section holds ARM unwind info. */
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#define SHT_ARM_PREEMPTMAP 0x70000002 /* Section pre-emption details. */
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#define SHT_ARM_ATTRIBUTES 0x70000003 /* Section holds attributes. */
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/* ARM-specific values for sh_flags. */
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#define SHF_ENTRYSECT 0x10000000 /* Section contains an entry point. */
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#define SHF_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step. */
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/* ARM-specific program header flags. */
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#define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base. */
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#define PF_ARM_PI 0x20000000 /* Segment is position-independent. */
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#define PF_ARM_ABS 0x40000000 /* Segment must be loaded at its base address. */
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/* Relocation types. */
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START_RELOC_NUMBERS (elf_arm_reloc_type)
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/* AAELF official names and numbers. */
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RELOC_NUMBER (R_ARM_NONE, 0)
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RELOC_NUMBER (R_ARM_PC24, 1) /* deprecated */
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RELOC_NUMBER (R_ARM_ABS32, 2)
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RELOC_NUMBER (R_ARM_REL32, 3)
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RELOC_NUMBER (R_ARM_LDR_PC_G0, 4)
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RELOC_NUMBER (R_ARM_ABS16, 5)
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RELOC_NUMBER (R_ARM_ABS12, 6)
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RELOC_NUMBER (R_ARM_THM_ABS5, 7)
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RELOC_NUMBER (R_ARM_ABS8, 8)
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RELOC_NUMBER (R_ARM_SBREL32, 9)
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RELOC_NUMBER (R_ARM_THM_CALL, 10)
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RELOC_NUMBER (R_ARM_THM_PC8, 11)
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RELOC_NUMBER (R_ARM_BREL_ADJ, 12)
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RELOC_NUMBER (R_ARM_SWI24, 13) /* obsolete */
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RELOC_NUMBER (R_ARM_THM_SWI8, 14) /* obsolete */
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RELOC_NUMBER (R_ARM_XPC25, 15) /* obsolete */
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RELOC_NUMBER (R_ARM_THM_XPC22, 16) /* obsolete */
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RELOC_NUMBER (R_ARM_TLS_DTPMOD32, 17)
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RELOC_NUMBER (R_ARM_TLS_DTPOFF32, 18)
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RELOC_NUMBER (R_ARM_TLS_TPOFF32, 19)
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RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */
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RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */
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RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */
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RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */
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RELOC_NUMBER (R_ARM_GOTOFF32, 24) /* 32 bit offset to GOT. */
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RELOC_NUMBER (R_ARM_BASE_PREL, 25) /* 32 bit PC relative offset to GOT. */
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RELOC_NUMBER (R_ARM_GOT_BREL, 26) /* 32 bit GOT entry. */
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RELOC_NUMBER (R_ARM_PLT32, 27) /* deprecated - 32 bit PLT address. */
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RELOC_NUMBER (R_ARM_CALL, 28)
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RELOC_NUMBER (R_ARM_JUMP24, 29)
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RELOC_NUMBER (R_ARM_THM_JUMP24, 30)
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RELOC_NUMBER (R_ARM_BASE_ABS, 31)
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RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32) /* obsolete */
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RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33) /* obsolete */
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RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34) /* obsolete */
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RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35) /* deprecated, should have _NC suffix */
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RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36) /* deprecated, should have _NC suffix */
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RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37) /* deprecated, should have _CK suffix */
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RELOC_NUMBER (R_ARM_TARGET1, 38)
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RELOC_NUMBER (R_ARM_SBREL31, 39) /* deprecated */
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RELOC_NUMBER (R_ARM_V4BX, 40)
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RELOC_NUMBER (R_ARM_TARGET2, 41)
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RELOC_NUMBER (R_ARM_PREL31, 42)
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RELOC_NUMBER (R_ARM_MOVW_ABS_NC, 43)
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RELOC_NUMBER (R_ARM_MOVT_ABS, 44)
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RELOC_NUMBER (R_ARM_MOVW_PREL_NC, 45)
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RELOC_NUMBER (R_ARM_MOVT_PREL, 46)
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RELOC_NUMBER (R_ARM_THM_MOVW_ABS_NC, 47)
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RELOC_NUMBER (R_ARM_THM_MOVT_ABS, 48)
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RELOC_NUMBER (R_ARM_THM_MOVW_PREL_NC, 49)
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RELOC_NUMBER (R_ARM_THM_MOVT_PREL, 50)
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RELOC_NUMBER (R_ARM_THM_JUMP19, 51)
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RELOC_NUMBER (R_ARM_THM_JUMP6, 52)
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RELOC_NUMBER (R_ARM_THM_ALU_PREL_11_0, 53)
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RELOC_NUMBER (R_ARM_THM_PC12, 54)
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RELOC_NUMBER (R_ARM_ABS32_NOI, 55)
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RELOC_NUMBER (R_ARM_REL32_NOI, 56)
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RELOC_NUMBER (R_ARM_ALU_PC_G0_NC, 57)
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RELOC_NUMBER (R_ARM_ALU_PC_G0, 58)
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RELOC_NUMBER (R_ARM_ALU_PC_G1_NC, 59)
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RELOC_NUMBER (R_ARM_ALU_PC_G1, 60)
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RELOC_NUMBER (R_ARM_ALU_PC_G2, 61)
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RELOC_NUMBER (R_ARM_LDR_PC_G1, 62)
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RELOC_NUMBER (R_ARM_LDR_PC_G2, 63)
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RELOC_NUMBER (R_ARM_LDRS_PC_G0, 64)
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RELOC_NUMBER (R_ARM_LDRS_PC_G1, 65)
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RELOC_NUMBER (R_ARM_LDRS_PC_G2, 66)
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RELOC_NUMBER (R_ARM_LDC_PC_G0, 67)
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RELOC_NUMBER (R_ARM_LDC_PC_G1, 68)
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RELOC_NUMBER (R_ARM_LDC_PC_G2, 69)
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RELOC_NUMBER (R_ARM_ALU_SB_G0_NC, 70)
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RELOC_NUMBER (R_ARM_ALU_SB_G0, 71)
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RELOC_NUMBER (R_ARM_ALU_SB_G1_NC, 72)
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RELOC_NUMBER (R_ARM_ALU_SB_G1, 73)
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RELOC_NUMBER (R_ARM_ALU_SB_G2, 74)
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RELOC_NUMBER (R_ARM_LDR_SB_G0, 75)
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RELOC_NUMBER (R_ARM_LDR_SB_G1, 76)
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RELOC_NUMBER (R_ARM_LDR_SB_G2, 77)
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RELOC_NUMBER (R_ARM_LDRS_SB_G0, 78)
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RELOC_NUMBER (R_ARM_LDRS_SB_G1, 79)
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RELOC_NUMBER (R_ARM_LDRS_SB_G2, 80)
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RELOC_NUMBER (R_ARM_LDC_SB_G0, 81)
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RELOC_NUMBER (R_ARM_LDC_SB_G1, 82)
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RELOC_NUMBER (R_ARM_LDC_SB_G2, 83)
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RELOC_NUMBER (R_ARM_MOVW_BREL_NC, 84)
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RELOC_NUMBER (R_ARM_MOVT_BREL, 85)
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RELOC_NUMBER (R_ARM_MOVW_BREL, 86)
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RELOC_NUMBER (R_ARM_THM_MOVW_BREL_NC, 87)
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RELOC_NUMBER (R_ARM_THM_MOVT_BREL, 88)
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RELOC_NUMBER (R_ARM_THM_MOVW_BREL, 89)
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/* 90-93 unallocated */
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RELOC_NUMBER (R_ARM_PLT32_ABS, 94)
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RELOC_NUMBER (R_ARM_GOT_ABS, 95)
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RELOC_NUMBER (R_ARM_GOT_PREL, 96)
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RELOC_NUMBER (R_ARM_GOT_BREL12, 97)
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RELOC_NUMBER (R_ARM_GOTOFF12, 98)
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RELOC_NUMBER (R_ARM_GOTRELAX, 99)
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RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100) /* deprecated - old C++ abi */
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RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101) /* deprecated - old C++ abi */
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RELOC_NUMBER (R_ARM_THM_JUMP11, 102)
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RELOC_NUMBER (R_ARM_THM_JUMP8, 103)
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RELOC_NUMBER (R_ARM_TLS_GD32, 104)
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RELOC_NUMBER (R_ARM_TLS_LDM32, 105)
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RELOC_NUMBER (R_ARM_TLS_LDO32, 106)
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RELOC_NUMBER (R_ARM_TLS_IE32, 107)
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RELOC_NUMBER (R_ARM_TLS_LE32, 108)
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RELOC_NUMBER (R_ARM_TLS_LDO12, 109)
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RELOC_NUMBER (R_ARM_TLS_LE12, 110)
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RELOC_NUMBER (R_ARM_TLS_IE12GP, 111)
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/* 112 - 127 private range */
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RELOC_NUMBER (R_ARM_ME_TOO, 128) /* obsolete */
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/* Extensions? R=read-only? */
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RELOC_NUMBER (R_ARM_RXPC25, 249)
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RELOC_NUMBER (R_ARM_RSBREL32, 250)
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RELOC_NUMBER (R_ARM_THM_RPC22, 251)
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RELOC_NUMBER (R_ARM_RREL32, 252)
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RELOC_NUMBER (R_ARM_RABS32, 253)
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RELOC_NUMBER (R_ARM_RPC24, 254)
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RELOC_NUMBER (R_ARM_RBASE, 255)
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/* Unofficial names for some of the relocs. */
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FAKE_RELOC (R_ARM_GOTOFF, R_ARM_GOTOFF32) /* 32 bit offset to GOT. */
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FAKE_RELOC (R_ARM_THM_PC22, R_ARM_THM_CALL)
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FAKE_RELOC (R_ARM_THM_PC11, R_ARM_THM_JUMP11)
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FAKE_RELOC (R_ARM_THM_PC9, R_ARM_THM_JUMP8)
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/* Relocs with both a different name, and (apparently) different meaning in
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GNU usage. */
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FAKE_RELOC (R_ARM_GOTPC, R_ARM_BASE_PREL) /* 32 bit PC relative offset to GOT. */
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FAKE_RELOC (R_ARM_GOT32, R_ARM_GOT_BREL) /* 32 bit GOT entry. */
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FAKE_RELOC (R_ARM_ROSEGREL32, R_ARM_SBREL31) /* ??? */
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FAKE_RELOC (R_ARM_AMP_VCALL9, R_ARM_BREL_ADJ) /* Thumb-something. Not used. */
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END_RELOC_NUMBERS (R_ARM_max)
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#ifdef BFD_ARCH_SIZE
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/* Routines for manipulating EABI object attributes. */
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void elf32_arm_add_eabi_attr_int (bfd *, int, unsigned int);
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void elf32_arm_add_eabi_attr_string (bfd *, int, const char *);
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void elf32_arm_add_eabi_attr_compat (bfd *, unsigned int, const char *);
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int elf32_arm_get_eabi_attr_int (bfd *, int);
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void elf32_arm_set_eabi_attr_contents (bfd *, bfd_byte *, bfd_vma);
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bfd_vma elf32_arm_eabi_attr_size (bfd *);
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enum
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{
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Tag_NULL,
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Tag_File,
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Tag_Section,
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Tag_Symbol,
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Tag_CPU_raw_name,
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Tag_CPU_name,
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Tag_CPU_arch,
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Tag_CPU_arch_profile,
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Tag_ARM_ISA_use,
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Tag_THUMB_ISA_use,
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Tag_VFP_arch,
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Tag_WMMX_arch,
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Tag_NEON_arch,
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Tag_PCS_config,
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Tag_ABI_PCS_R9_use,
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Tag_ABI_PCS_RW_data,
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Tag_ABI_PCS_RO_data,
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Tag_ABI_PCS_GOT_use,
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Tag_ABI_PCS_wchar_t,
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Tag_ABI_FP_rounding,
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Tag_ABI_FP_denormal,
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Tag_ABI_FP_exceptions,
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Tag_ABI_FP_user_exceptions,
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Tag_ABI_FP_number_model,
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Tag_ABI_align8_needed,
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Tag_ABI_align8_preserved,
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Tag_ABI_enum_size,
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Tag_ABI_HardFP_use,
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Tag_ABI_VFP_args,
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Tag_ABI_WMMX_args,
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Tag_ABI_optimization_goals,
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Tag_ABI_FP_optimization_goals,
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Tag_compatibility,
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};
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#endif
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/* The name of the note section used to identify arm variants. */
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#define ARM_NOTE_SECTION ".note.gnu.arm.ident"
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/* Special section names. */
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#define ELF_STRING_ARM_unwind ".ARM.exidx"
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#define ELF_STRING_ARM_unwind_info ".ARM.extab"
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#define ELF_STRING_ARM_unwind_once ".gnu.linkonce.armexidx."
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#define ELF_STRING_ARM_unwind_info_once ".gnu.linkonce.armextab."
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#endif /* _ELF_ARM_H */
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