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Diffstat (limited to 'binutils-2.25/include/elf/arm.h')
| -rw-r--r-- | binutils-2.25/include/elf/arm.h | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/binutils-2.25/include/elf/arm.h b/binutils-2.25/include/elf/arm.h new file mode 100644 index 00000000..d7993038 --- /dev/null +++ b/binutils-2.25/include/elf/arm.h @@ -0,0 +1,344 @@ +/* ARM ELF support for BFD. + Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009, 2010 + 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 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ + +#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 + +/* New constants defined in the ARM ELF spec. version XXX. + Only valid in conjunction with EF_ARM_EABI_VER5. */ +#define EF_ARM_ABI_FLOAT_SOFT 0x200 /* NB conflicts with EF_ARM_SOFT_FLOAT. */ +#define EF_ARM_ABI_FLOAT_HARD 0x400 /* NB conflicts with EF_ARM_VFP_FLOAT. */ + +/* 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 +#define EF_ARM_EABI_VER5 0x05000000 + +/* 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. */ +#define SHT_ARM_PREEMPTMAP 0x70000002 /* Section pre-emption details. */ +#define SHT_ARM_ATTRIBUTES 0x70000003 /* Section holds attributes. */ +#define SHT_ARM_DEBUGOVERLAY 0x70000004 /* Section holds overlay debug info. */ +#define SHT_ARM_OVERLAYSECTION 0x70000005 /* Section holds GDB and overlay integration 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. */ + +/* Values for the Tag_CPU_arch EABI attribute. */ +#define TAG_CPU_ARCH_PRE_V4 0 +#define TAG_CPU_ARCH_V4 1 +#define TAG_CPU_ARCH_V4T 2 +#define TAG_CPU_ARCH_V5T 3 +#define TAG_CPU_ARCH_V5TE 4 +#define TAG_CPU_ARCH_V5TEJ 5 +#define TAG_CPU_ARCH_V6 6 +#define TAG_CPU_ARCH_V6KZ 7 +#define TAG_CPU_ARCH_V6T2 8 +#define TAG_CPU_ARCH_V6K 9 +#define TAG_CPU_ARCH_V7 10 +#define TAG_CPU_ARCH_V6_M 11 +#define TAG_CPU_ARCH_V6S_M 12 +#define TAG_CPU_ARCH_V7E_M 13 +#define TAG_CPU_ARCH_V8 14 +#define MAX_TAG_CPU_ARCH 14 +/* Pseudo-architecture to allow objects to be compatible with the subset of + armv4t and armv6-m. This value should never be stored in object files. */ +#define TAG_CPU_ARCH_V4T_PLUS_V6_M (MAX_TAG_CPU_ARCH + 1) + +/* 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) + 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_TLS_DESC, 13) + RELOC_NUMBER (R_ARM_THM_SWI8, 14) /* obsolete */ + 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_SB_G0, 81) + RELOC_NUMBER (R_ARM_LDC_SB_G1, 82) + RELOC_NUMBER (R_ARM_LDC_SB_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) + RELOC_NUMBER (R_ARM_TLS_GOTDESC, 90) + RELOC_NUMBER (R_ARM_TLS_CALL, 91) + RELOC_NUMBER (R_ARM_TLS_DESCSEQ, 92) + RELOC_NUMBER (R_ARM_THM_TLS_CALL, 93) + 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) + 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) + 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 */ + RELOC_NUMBER (R_ARM_THM_TLS_DESCSEQ ,129) + + RELOC_NUMBER (R_ARM_IRELATIVE, 160) + + /* 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. */ + +END_RELOC_NUMBERS (R_ARM_max = 256) + +#ifdef BFD_ARCH_SIZE +/* EABI object attributes. */ + +enum +{ + /* 0-3 are generic. */ + Tag_CPU_raw_name = 4, + Tag_CPU_name, + Tag_CPU_arch, + Tag_CPU_arch_profile, + Tag_ARM_ISA_use, + Tag_THUMB_ISA_use, + Tag_FP_arch, + Tag_WMMX_arch, + Tag_Advanced_SIMD_arch, + Tag_PCS_config, + Tag_ABI_PCS_R9_use, + Tag_ABI_PCS_RW_data, + Tag_ABI_PCS_RO_data, + Tag_ABI_PCS_GOT_use, + Tag_ABI_PCS_wchar_t, + Tag_ABI_FP_rounding, + Tag_ABI_FP_denormal, + Tag_ABI_FP_exceptions, + Tag_ABI_FP_user_exceptions, + Tag_ABI_FP_number_model, + Tag_ABI_align_needed, + Tag_ABI_align_preserved, + Tag_ABI_enum_size, + Tag_ABI_HardFP_use, + Tag_ABI_VFP_args, + Tag_ABI_WMMX_args, + Tag_ABI_optimization_goals, + Tag_ABI_FP_optimization_goals, + /* 32 is generic (Tag_compatibility). */ + Tag_undefined33 = 33, + Tag_CPU_unaligned_access, + Tag_undefined35, + Tag_FP_HP_extension, + Tag_undefined37, + Tag_ABI_FP_16bit_format, + Tag_undefined39, + Tag_undefined40, + Tag_undefined41, + Tag_MPextension_use, + Tag_undefined_43, + Tag_DIV_use, + Tag_nodefaults = 64, + Tag_also_compatible_with, + Tag_T2EE_use, + Tag_conformance, + Tag_Virtualization_use, + Tag_undefined69, + Tag_MPextension_use_legacy, + + /* The following tags are legacy names for other tags. */ + Tag_VFP_arch = Tag_FP_arch, + Tag_ABI_align8_needed = Tag_ABI_align_needed, + Tag_ABI_align8_preserved = Tag_ABI_align_preserved, + Tag_VFP_HP_extension = Tag_FP_HP_extension +}; + +#endif + +/* 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." + +enum arm_st_branch_type { + ST_BRANCH_TO_ARM, + ST_BRANCH_TO_THUMB, + ST_BRANCH_LONG, + ST_BRANCH_UNKNOWN +}; + +#define ARM_SYM_BRANCH_TYPE(SYM) \ + ((enum arm_st_branch_type) (SYM)->st_target_internal) + +#endif /* _ELF_ARM_H */ |