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libc/include/elf/arm.h
Zack Weinberg f2b664e0dd include/elf: 
* arm.h: Import complete list of official relocation names
	and numbers from AAELF.  Define FAKE_RELOCs for old names.
	Remove a few old names no longer used anywhere.

bfd:
	* elf32-arm.c: Wherever possible, use official reloc names
	from AAELF.
	(elf32_arm_howto_table, elf32_arm_tls_gd32_howto)
	(elf32_arm_tls_ldo32_howto, elf32_arm_tls_ldm32_howto)
	(elf32_arm_tls_le32_howto, elf32_arm_tls_ie32_howto)
	(elf32_arm_vtinherit_howto, elf32_arm_vtentry_howto)
	(elf32_arm_pc11_howto, elf32_arm_thm_pc9_howto, elf32_arm_got_prel)
	(elf32_arm_r_howto): Replace with elf32_arm_howto_table_1,
	elf32_arm_howto_table_2, and elf32_arm_howto_table_3.
	Add many new relocations from AAELF.
	(elf32_arm_howto_from_type): Update to match.
	(elf32_arm_reloc_map): Add entries for R_ARM_THM_JUMP24,
	R_ARM_THM_JUMP11, R_ARM_THM_JUMP19, R_ARM_THM_JUMP8,
	R_ARM_THM_JUMP6, R_ARM_GNU_VTINHERIT, and R_ARM_GNU_VTENTRY.
	(elf32_arm_reloc_type_lookup): Use elf32_arm_howto_from_type.
	(elf32_arm_final_link_relocate): Add support for
	R_ARM_THM_JUMP24, R_ARM_THM_JUMP19, R_ARM_THM_JUMP6.  Remove
	case entries redundant with default.

	* reloc.c: Reorganize ARM relocations.  Add Thumb
	assembler-internal relocations BFD_RELOC_ARM_T32_OFFSET_U8,
	BFD_RELOC_ARM_T32_OFFSET_IMM, BFD_RELOC_ARM_T32_IMMEDIATE.
	Add visible relocations BFD_RELOC_THUMB_PCREL_BRANCH7,
	BFD_RELOC_THUMB_BRANCH20, BFD_RELOC_THUMB_BRANCH25.
	Delete unused relocations BFD_RELOC_ARM_GOT12, BFD_RELOC_ARM_COPY.
	* bfd-in2.h, libbfd.h: Regenerate.

opcodes:
	* arm-dis.c (thumb_opcodes): Add disassembly for V6T2 16-bit
	instructions.  Adjust disassembly of some opcodes to match
	unified syntax.
	(thumb32_opcodes): New table.
	(print_insn_thumb): Rename print_insn_thumb16; don't handle
	two-halfword branches here.
	(print_insn_thumb32): New function.
	(print_insn): Choose among print_insn_arm, print_insn_thumb16,
	and print_insn_thumb32.  Be consistent about order of
	halfwords when printing 32-bit instructions.

gas:
	* hash.c (hash_lookup): Add len parameter.  All callers changed.
	(hash_find_n): New interface.
	* hash.h: Prototype hash_find_n.
	* sb.c: Include as.h.
	(scrub_from_sb, sb_to_scrub, scrub_position): New statics.
	(sb_scrub_and_add_sb): New interface.
	* sb.h: Prototype sb_scrub_and_add_sb.
	* input-scrub.c (input_scrub_include_sb): Use sb_scrub_and_add_sb.

	* config/tc-arm.h (TC_FORCE_RELOCATION_LOCAL): Remove
	reference to BFD_RELOC_ARM_GOT12 which is never generated.
	* config/tc-arm.c: Rewrite, adding Thumb-2 support.

gas/testsuite:
	* gas/arm/arm.exp: Convert all existing "gas_test" tests to
	"run_dump_test" tests.  Run more tests unconditionally.  Run new tests.
	* gas/arm/arch4t.s, gas/arm/arch6zk.s, gas/arm/arm3.s, gas/arm/arm6.s
	* gas/arm/arm7dm.s, gas/arm/bignum1.s, gas/arm/float.s
	* gas/arm/immed.s, gas/arm/iwmmxt.s, gas/arm/offset.s, gas/arm/thumb.s:
	Adjust to work as a dump test.
	* gas/arm/arch4t.d, gas/arm/arch6zk.d, gas/arm/arm3.d, gas/arm/arm6.d
	* gas/arm/arm7dm.d, gas/arm/bignum1.d, gas/arm/float.d
	* gas/arm/immed.d, gas/arm/iwmmxt.d, gas/arm/offset.d, gas/arm/thumb.d:
	New files.

	* gas/arm/armv1-bad.l, gas/arm/armv1-bad.s: Remove tests for
	diagnostics that don't happen in the first pass anymore.

	* gas/arm/iwmmxt-bad.l, gas/arm/r15-bad.l, gas/arm/req.l
	* gas/arm/vfp-bad.l:
	Update expected diagnostics.
	* gas/arm/pic.d: Update expected reloc name.
	* gas/arm/thumbv6.d: CPY no longer appears in disassembly.
	* gas/arm/r15-bad.s: Avoid two-argument mul.
	* gas/arm/req.s: Adjust comments.
	* gas/arm/maverick.d, gas/arm/maverick.s: Avoid inappropriate
	use of PC.

	* gas/arm/macro-1.d, gas/arm/macro1.s
	* gas/arm/t16-bad.l, gas/arm/t16-bad.s
	* gas/arm/tcompat.d, gas/arm/tcompat.s
	* gas/arm/tcompat2.d, gas/arm/tcompat2.s
	* gas/arm/thumb32.d, gas/arm/thumb32.s
	New test pair.

ld/testsuite:
	* ld-arm/mixed-app.d: Adjust expected disassembly a little.
2005-05-18 05:40:10 +00:00

252 lines
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C
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/* ARM ELF support for BFD.
Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#ifndef _ELF_ARM_H
#define _ELF_ARM_H
#include "elf/reloc-macros.h"
/* Processor specific flags for the ELF header e_flags field. */
#define EF_ARM_RELEXEC 0x01
#define EF_ARM_HASENTRY 0x02
#define EF_ARM_INTERWORK 0x04
#define EF_ARM_APCS_26 0x08
#define EF_ARM_APCS_FLOAT 0x10
#define EF_ARM_PIC 0x20
#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use. */
#define EF_ARM_NEW_ABI 0x80
#define EF_ARM_OLD_ABI 0x100
#define EF_ARM_SOFT_FLOAT 0x200
#define EF_ARM_VFP_FLOAT 0x400
#define EF_ARM_MAVERICK_FLOAT 0x800
/* Frame unwind information */
#define PT_ARM_EXIDX (PT_LOPROC + 1)
/* Other constants defined in the ARM ELF spec. version B-01. */
#define EF_ARM_SYMSARESORTED 0x04 /* NB conflicts with EF_INTERWORK */
#define EF_ARM_DYNSYMSUSESEGIDX 0x08 /* NB conflicts with EF_APCS26 */
#define EF_ARM_MAPSYMSFIRST 0x10 /* NB conflicts with EF_APCS_FLOAT */
#define EF_ARM_EABIMASK 0xFF000000
/* Constants defined in AAELF. */
#define EF_ARM_BE8 0x00800000
#define EF_ARM_LE8 0x00400000
#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
#define EF_ARM_EABI_UNKNOWN 0x00000000
#define EF_ARM_EABI_VER1 0x01000000
#define EF_ARM_EABI_VER2 0x02000000
#define EF_ARM_EABI_VER3 0x03000000
#define EF_ARM_EABI_VER4 0x04000000
/* Local aliases for some flags to match names used by COFF port. */
#define F_INTERWORK EF_ARM_INTERWORK
#define F_APCS26 EF_ARM_APCS_26
#define F_APCS_FLOAT EF_ARM_APCS_FLOAT
#define F_PIC EF_ARM_PIC
#define F_SOFT_FLOAT EF_ARM_SOFT_FLOAT
#define F_VFP_FLOAT EF_ARM_VFP_FLOAT
/* Additional symbol types for Thumb. */
#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
/* Additional section types. */
#define SHT_ARM_EXIDX 0x70000001 /* Section holds ARM unwind info. */
/* ARM-specific values for sh_flags. */
#define SHF_ENTRYSECT 0x10000000 /* Section contains an entry point. */
#define SHF_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step. */
/* ARM-specific program header flags. */
#define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base. */
#define PF_ARM_PI 0x20000000 /* Segment is position-independent. */
#define PF_ARM_ABS 0x40000000 /* Segment must be loaded at its base address. */
/* Relocation types. */
START_RELOC_NUMBERS (elf_arm_reloc_type)
/* AAELF official names and numbers. */
RELOC_NUMBER (R_ARM_NONE, 0)
RELOC_NUMBER (R_ARM_PC24, 1) /* deprecated */
RELOC_NUMBER (R_ARM_ABS32, 2)
RELOC_NUMBER (R_ARM_REL32, 3)
#ifndef OLD_ARM_ABI
RELOC_NUMBER (R_ARM_LDR_PC_G0, 4)
RELOC_NUMBER (R_ARM_ABS16, 5)
RELOC_NUMBER (R_ARM_ABS12, 6)
RELOC_NUMBER (R_ARM_THM_ABS5, 7)
RELOC_NUMBER (R_ARM_ABS8, 8)
RELOC_NUMBER (R_ARM_SBREL32, 9)
RELOC_NUMBER (R_ARM_THM_CALL, 10)
RELOC_NUMBER (R_ARM_THM_PC8, 11)
RELOC_NUMBER (R_ARM_BREL_ADJ, 12)
RELOC_NUMBER (R_ARM_SWI24, 13) /* obsolete */
RELOC_NUMBER (R_ARM_THM_SWI8, 14) /* obsolete */
#else
RELOC_NUMBER (R_ARM_ABS8, 4)
RELOC_NUMBER (R_ARM_ABS16, 5)
RELOC_NUMBER (R_ARM_ABS12, 6)
RELOC_NUMBER (R_ARM_THM_ABS5, 7)
RELOC_NUMBER (R_ARM_THM_CALL, 8)
RELOC_NUMBER (R_ARM_SBREL32, 9)
RELOC_NUMBER (R_ARM_BREL_ADJ, 10)
RELOC_NUMBER (R_ARM_THM_JUMP11, 11)
RELOC_NUMBER (R_ARM_THM_JUMP8, 12)
RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 13)
RELOC_NUMBER (R_ARM_GNU_VTENTRY, 14)
#endif
RELOC_NUMBER (R_ARM_XPC25, 15) /* obsolete */
RELOC_NUMBER (R_ARM_THM_XPC22, 16) /* obsolete */
RELOC_NUMBER (R_ARM_TLS_DTPMOD32, 17)
RELOC_NUMBER (R_ARM_TLS_DTPOFF32, 18)
RELOC_NUMBER (R_ARM_TLS_TPOFF32, 19)
RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */
RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */
RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */
RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */
RELOC_NUMBER (R_ARM_GOTOFF32, 24) /* 32 bit offset to GOT. */
RELOC_NUMBER (R_ARM_BASE_PREL, 25) /* 32 bit PC relative offset to GOT. */
RELOC_NUMBER (R_ARM_GOT_BREL, 26) /* 32 bit GOT entry. */
RELOC_NUMBER (R_ARM_PLT32, 27) /* deprecated - 32 bit PLT address. */
RELOC_NUMBER (R_ARM_CALL, 28)
RELOC_NUMBER (R_ARM_JUMP24, 29)
RELOC_NUMBER (R_ARM_THM_JUMP24, 30)
RELOC_NUMBER (R_ARM_BASE_ABS, 31)
RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32) /* obsolete */
RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33) /* obsolete */
RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34) /* obsolete */
RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35) /* deprecated, should have _NC suffix */
RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36) /* deprecated, should have _NC suffix */
RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37) /* deprecated, should have _CK suffix */
RELOC_NUMBER (R_ARM_TARGET1, 38)
RELOC_NUMBER (R_ARM_SBREL31, 39) /* deprecated */
RELOC_NUMBER (R_ARM_V4BX, 40)
RELOC_NUMBER (R_ARM_TARGET2, 41)
RELOC_NUMBER (R_ARM_PREL31, 42)
RELOC_NUMBER (R_ARM_MOVW_ABS_NC, 43)
RELOC_NUMBER (R_ARM_MOVT_ABS, 44)
RELOC_NUMBER (R_ARM_MOVW_PREL_NC, 45)
RELOC_NUMBER (R_ARM_MOVT_PREL, 46)
RELOC_NUMBER (R_ARM_THM_MOVW_ABS_NC, 47)
RELOC_NUMBER (R_ARM_THM_MOVT_ABS, 48)
RELOC_NUMBER (R_ARM_THM_MOVW_PREL_NC, 49)
RELOC_NUMBER (R_ARM_THM_MOVT_PREL, 50)
RELOC_NUMBER (R_ARM_THM_JUMP19, 51)
RELOC_NUMBER (R_ARM_THM_JUMP6, 52)
RELOC_NUMBER (R_ARM_THM_ALU_PREL_11_0, 53)
RELOC_NUMBER (R_ARM_THM_PC12, 54)
RELOC_NUMBER (R_ARM_ABS32_NOI, 55)
RELOC_NUMBER (R_ARM_REL32_NOI, 56)
RELOC_NUMBER (R_ARM_ALU_PC_G0_NC, 57)
RELOC_NUMBER (R_ARM_ALU_PC_G0, 58)
RELOC_NUMBER (R_ARM_ALU_PC_G1_NC, 59)
RELOC_NUMBER (R_ARM_ALU_PC_G1, 60)
RELOC_NUMBER (R_ARM_ALU_PC_G2, 61)
RELOC_NUMBER (R_ARM_LDR_PC_G1, 62)
RELOC_NUMBER (R_ARM_LDR_PC_G2, 63)
RELOC_NUMBER (R_ARM_LDRS_PC_G0, 64)
RELOC_NUMBER (R_ARM_LDRS_PC_G1, 65)
RELOC_NUMBER (R_ARM_LDRS_PC_G2, 66)
RELOC_NUMBER (R_ARM_LDC_PC_G0, 67)
RELOC_NUMBER (R_ARM_LDC_PC_G1, 68)
RELOC_NUMBER (R_ARM_LDC_PC_G2, 69)
RELOC_NUMBER (R_ARM_ALU_SB_G0_NC, 70)
RELOC_NUMBER (R_ARM_ALU_SB_G0, 71)
RELOC_NUMBER (R_ARM_ALU_SB_G1_NC, 72)
RELOC_NUMBER (R_ARM_ALU_SB_G1, 73)
RELOC_NUMBER (R_ARM_ALU_SB_G2, 74)
RELOC_NUMBER (R_ARM_LDR_SB_G0, 75)
RELOC_NUMBER (R_ARM_LDR_SB_G1, 76)
RELOC_NUMBER (R_ARM_LDR_SB_G2, 77)
RELOC_NUMBER (R_ARM_LDRS_SB_G0, 78)
RELOC_NUMBER (R_ARM_LDRS_SB_G1, 79)
RELOC_NUMBER (R_ARM_LDRS_SB_G2, 80)
RELOC_NUMBER (R_ARM_LDC_G0, 81)
RELOC_NUMBER (R_ARM_LDC_G1, 82)
RELOC_NUMBER (R_ARM_LDC_G2, 83)
RELOC_NUMBER (R_ARM_MOVW_BREL_NC, 84)
RELOC_NUMBER (R_ARM_MOVT_BREL, 85)
RELOC_NUMBER (R_ARM_MOVW_BREL, 86)
RELOC_NUMBER (R_ARM_THM_MOVW_BREL_NC, 87)
RELOC_NUMBER (R_ARM_THM_MOVT_BREL, 88)
RELOC_NUMBER (R_ARM_THM_MOVW_BREL, 89)
/* 90-93 unallocated */
RELOC_NUMBER (R_ARM_PLT32_ABS, 94)
RELOC_NUMBER (R_ARM_GOT_ABS, 95)
RELOC_NUMBER (R_ARM_GOT_PREL, 96)
RELOC_NUMBER (R_ARM_GOT_BREL12, 97)
RELOC_NUMBER (R_ARM_GOTOFF12, 98)
RELOC_NUMBER (R_ARM_GOTRELAX, 99)
#ifndef OLD_ARM_ABI
RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100) /* deprecated - old C++ abi */
RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101) /* deprecated - old C++ abi */
RELOC_NUMBER (R_ARM_THM_JUMP11, 102)
RELOC_NUMBER (R_ARM_THM_JUMP8, 103)
#endif
RELOC_NUMBER (R_ARM_TLS_GD32, 104)
RELOC_NUMBER (R_ARM_TLS_LDM32, 105)
RELOC_NUMBER (R_ARM_TLS_LDO32, 106)
RELOC_NUMBER (R_ARM_TLS_IE32, 107)
RELOC_NUMBER (R_ARM_TLS_LE32, 108)
RELOC_NUMBER (R_ARM_TLS_LDO12, 109)
RELOC_NUMBER (R_ARM_TLS_LE12, 110)
RELOC_NUMBER (R_ARM_TLS_IE12GP, 111)
/* 112 - 127 private range */
RELOC_NUMBER (R_ARM_ME_TOO, 128) /* obsolete */
/* Extensions? R=read-only? */
RELOC_NUMBER (R_ARM_RXPC25, 249)
RELOC_NUMBER (R_ARM_RSBREL32, 250)
RELOC_NUMBER (R_ARM_THM_RPC22, 251)
RELOC_NUMBER (R_ARM_RREL32, 252)
RELOC_NUMBER (R_ARM_RABS32, 253)
RELOC_NUMBER (R_ARM_RPC24, 254)
RELOC_NUMBER (R_ARM_RBASE, 255)
/* Unofficial names for some of the relocs. */
FAKE_RELOC (R_ARM_GOTOFF, R_ARM_GOTOFF32) /* 32 bit offset to GOT. */
FAKE_RELOC (R_ARM_THM_PC22, R_ARM_THM_CALL)
FAKE_RELOC (R_ARM_THM_PC11, R_ARM_THM_JUMP11)
FAKE_RELOC (R_ARM_THM_PC9, R_ARM_THM_JUMP8)
/* Relocs with both a different name, and (apparently) different meaning in
GNU usage. */
FAKE_RELOC (R_ARM_GOTPC, R_ARM_BASE_PREL) /* 32 bit PC relative offset to GOT. */
FAKE_RELOC (R_ARM_GOT32, R_ARM_GOT_BREL) /* 32 bit GOT entry. */
FAKE_RELOC (R_ARM_ROSEGREL32, R_ARM_SBREL31) /* ??? */
FAKE_RELOC (R_ARM_AMP_VCALL9, R_ARM_BREL_ADJ) /* Thumb-something. Not used. */
#ifndef OLD_ARM_ABI
FAKE_RELOC (R_ARM_PC13, R_ARM_LDR_PC_G0) /* Unclear whether meaning is different. */
#endif
END_RELOC_NUMBERS (R_ARM_max)
/* The name of the note section used to identify arm variants. */
#define ARM_NOTE_SECTION ".note.gnu.arm.ident"
/* Special section names. */
#define ELF_STRING_ARM_unwind ".ARM.exidx"
#define ELF_STRING_ARM_unwind_info ".ARM.extab"
#define ELF_STRING_ARM_unwind_once ".gnu.linkonce.armexidx."
#define ELF_STRING_ARM_unwind_info_once ".gnu.linkonce.armextab."
#endif /* _ELF_ARM_H */
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