c19d120533
* 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.
252 lines
11 KiB
C
252 lines
11 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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/* 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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/* 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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#ifndef OLD_ARM_ABI
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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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#else
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RELOC_NUMBER (R_ARM_ABS8, 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_THM_CALL, 8)
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RELOC_NUMBER (R_ARM_SBREL32, 9)
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RELOC_NUMBER (R_ARM_BREL_ADJ, 10)
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RELOC_NUMBER (R_ARM_THM_JUMP11, 11)
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RELOC_NUMBER (R_ARM_THM_JUMP8, 12)
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RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 13)
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RELOC_NUMBER (R_ARM_GNU_VTENTRY, 14)
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#endif
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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_G0, 81)
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RELOC_NUMBER (R_ARM_LDC_G1, 82)
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RELOC_NUMBER (R_ARM_LDC_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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#ifndef OLD_ARM_ABI
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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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#endif
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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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#ifndef OLD_ARM_ABI
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FAKE_RELOC (R_ARM_PC13, R_ARM_LDR_PC_G0) /* Unclear whether meaning is different. */
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#endif
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END_RELOC_NUMBERS (R_ARM_max)
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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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