// arm.h -- ELF definitions specific to EM_ARM  -*- C++ -*- // Copyright 2009, 2012 Free Software Foundation, Inc.// Written by Doug Kwan <dougkwan@google.com>. // This file is part of elfcpp.   // This program is free software; you can redistribute it and/or// modify it under the terms of the GNU Library General Public License// as published by the Free Software Foundation; either version 2, or// (at your option) any later version. // In addition to the permissions in the GNU Library General Public// License, the Free Software Foundation gives you unlimited// permission to link the compiled version of this file into// combinations with other programs, and to distribute those// combinations without any restriction coming from the use of this// file.  (The Library Public License restrictions do apply in other// respects; for example, they cover modification of the file, and// distribution when not linked into a combined executable.) // 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// Library General Public License for more details. // You should have received a copy of the GNU Library 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 ELFCPP_ARM_H#define ELFCPP_ARM_H // The relocation type information is taken from:////   ELF for the ARM Architecture//   Document number: ARM IHI 0044C, current through ABI release 2.07//   Date of Issue: 10th October, 2008// namespace elfcpp{ //// ARM Relocations Codes// // Operation notes: //   S: Address of the symbol.//   A: Addend for relocation.//   P: Address of the place being relocated.//   Pa: Adjusted address of the place being relocated (P & 0xfffffffc)//   T: is 1 if S has type STT_FUNC and the symbol addresses a Thumb//      instruction.Thumb-bit; it is 0 otherwise.//   B(S): Addressing origin of the output segment defining S.//   GOT_ORG: Addressing origin of the Global Offset Table.//   GOT(S): Address of the GOT entry for S.// enum{				// Type		Class	Operation						// ------------------------------  R_ARM_NONE = 0,		// Static	Misc  R_ARM_PC24 = 1,		// Deprecated	ARM	((S + A) | T) - P  R_ARM_ABS32 = 2,		// Static	Data	(S + A) | T  R_ARM_REL32 = 3,		// Static	Data	((S + A) | T) - P  R_ARM_LDR_PC_G0 = 4,		// Static	ARM	S + A - P  R_ARM_ABS16 = 5,		// Static	Data	S + A  R_ARM_ABS12 = 6,		// Static	ARM	S + A  R_ARM_THM_ABS5 = 7,		// Static	Thumb16	S + A  R_ARM_ABS8 = 8,		// Static	Data	S + A  R_ARM_SBREL32 = 9,		// Static	Data	((S + A) | T) - B(S)  R_ARM_THM_CALL = 10,		// Static	Thumb32	((S + A) | T) - P  R_ARM_THM_PC8 = 11,		// Static	Thumb16  R_ARM_BREL_ADJ = 12,		// Dynamic	Data	DeltaB(S) + A  R_ARM_TLS_DESC = 13,		// Dynamic	Data  R_ARM_THM_SWI8 = 14,		// Obsolete  R_ARM_XPC25 = 15,		// Obsolete  R_ARM_THM_XPC22 = 16,		// Obsolete  R_ARM_TLS_DTPMOD32 = 17,	// Dynamic	Data	Module(S)  R_ARM_TLS_DTPOFF32 = 18,	// Dynamic	Data	S + A - TLS  R_ARM_TLS_TPOFF32 = 19,	// Dynamic	Data	S + A - tp  R_ARM_COPY = 20,		// Dynamic	Misc  R_ARM_GLOB_DAT = 21,		// Dynamic	Data	(S + A) | T  R_ARM_JUMP_SLOT = 22,		// Dynamic	Data	(S + A) | T  R_ARM_RELATIVE = 23,		// Dynamic	Data	B(S) + A  R_ARM_GOTOFF32 = 24,		// Static	Data	(((S + A) | T) - GOT_ORG  R_ARM_BASE_PREL = 25,		// Static	Data	B(S) + A - P  R_ARM_GOT_BREL = 26,		// Static	Data	GOT(S) + A - GOT_ORG  R_ARM_PLT32 = 27,		// Deprecated	ARM	((S + A) | T) - P  R_ARM_CALL = 28,		// Static	ARM	((S + A) | T) - P  R_ARM_JUMP24 = 29,		// Static	ARM	((S + A) | T) - P  R_ARM_THM_JUMP24 = 30,	// Static	Thumb32	((S + A) | T) - P  R_ARM_BASE_ABS = 31,		// Static	Data	B(S) + A  R_ARM_ALU_PCREL_7_0 = 32,	// Obsolete  R_ARM_ALU_PCREL_15_8 = 33,	// Obsolete  R_ARM_ALU_PCREL_23_15 = 34,	// Obsolete  R_ARM_LDR_SBREL_11_0_NC = 35,	// Deprecated	ARM	S + A - B(S)  R_ARM_ALU_SBREL_19_12_NC = 36,// Deprecated	ARM	S + A - B(S)  R_ARM_ALU_SBREL_27_20_CK = 37,// Deprecated	ARM	S + A - B(S)  R_ARM_TARGET1 = 38,		// Data		Misc	(S + A) | T or				//			((S + A) | T) - P  R_ARM_SBREL31 = 39,		// Deprecated	Data	((S + A) | T) - B(S)  R_ARM_V4BX = 40,		// Static	Misc   R_ARM_TARGET2 = 41,		// Static	Misc  R_ARM_PREL31 = 42,		// Static	Data	((S + A) | T) - P  R_ARM_MOVW_ABS_NC = 43,	// Static	ARM	(S + A) | T  R_ARM_MOVT_ABS = 44,		// Static	ARM	S + A  R_ARM_MOVW_PREL_NC = 45,	// Static	ARM	((S + A) | T) - P  R_ARM_MOVT_PREL = 46,		// Static	ARM	S + A - P  R_ARM_THM_MOVW_ABS_NC = 47,	// Static	Thumb32	(S + A) | T  R_ARM_THM_MOVT_ABS = 48,	// Static	Thumb32	S + A - P  R_ARM_THM_MOVW_PREL_NC =  49,	// Static	Thumb32	((S + A) | T) - P  R_ARM_THM_MOVT_PREL = 50,	// Static	Thumb32	S + A - P  R_ARM_THM_JUMP19 = 51,	// Static	Thumb32	((S + A) | T) - P  R_ARM_THM_JUMP6 = 52,		// Static	Thumb16	S + A - P  R_ARM_THM_ALU_PREL_11_0 = 53,	// Static	Thumb32	((S + A) | T) - Pa  R_ARM_THM_PC12 = 54,		// Static	Thumb32	S + A - Pa  R_ARM_ABS32_NOI = 55,		// Static	Data	S + A  R_ARM_REL32_NOI = 56,		// Static	Data	S + A - P  R_ARM_ALU_PC_G0_NC = 57,	// Static	ARM	((S + A) | T) - P  R_ARM_ALU_PC_G0 = 58,		// Static	ARM	((S + A) | T) - P  R_ARM_ALU_PC_G1_NC = 59,	// Static	ARM	((S + A) | T) - P  R_ARM_ALU_PC_G1 = 60,		// Static	ARM	((S + A) | T) - P  R_ARM_ALU_PC_G2 = 61,		// Static	ARM	((S + A) | T) - P  R_ARM_LDR_PC_G1 = 62,		// Static	ARM	S + A - P  R_ARM_LDR_PC_G2 = 63,		// Static	ARM	S + A - P  R_ARM_LDRS_PC_G0 = 64,	// Static	ARM	S + A - P  R_ARM_LDRS_PC_G1 = 65,	// Static	ARM	S + A - P  R_ARM_LDRS_PC_G2 = 66,	// Static	ARM	S + A - P  R_ARM_LDC_PC_G0 = 67,		// Static	ARM	S + A - P  R_ARM_LDC_PC_G1 = 68,		// Static	ARM	S + A - P  R_ARM_LDC_PC_G2 = 69,		// Static	ARM	S + A - P  R_ARM_ALU_SB_G0_NC = 70,	// Static	ARM	((S + A) | T) - B(S)  R_ARM_ALU_SB_G0 = 71,		// Static	ARM	((S + A) | T) - B(S)  R_ARM_ALU_SB_G1_NC = 72,	// Static	ARM	((S + A) | T) - B(S)  R_ARM_ALU_SB_G1 = 73,		// Static	ARM	((S + A) | T) - B(S)  R_ARM_ALU_SB_G2 = 74,		// Static	ARM	((S + A) | T) - B(S)  R_ARM_LDR_SB_G0 = 75,		// Static	ARM	S + A - B(S)  R_ARM_LDR_SB_G1 = 76,		// Static	ARM	S + A - B(S)  R_ARM_LDR_SB_G2 = 77,		// Static	ARM	S + A - B(S)  R_ARM_LDRS_SB_G0 = 78,	// Static	ARM	S + A - B(S)  R_ARM_LDRS_SB_G1 = 79,	// Static	ARM	S + A - B(S)  R_ARM_LDRS_SB_G2 = 80,	// Static	ARM	S + A - B(S)  R_ARM_LDC_SB_G0 = 81,		// Static	ARM	S + A - B(S)  R_ARM_LDC_SB_G1 = 82,		// Static	ARM	S + A - B(S)  R_ARM_LDC_SB_G2 = 83,		// Static	ARM	S + A - B(S)  R_ARM_MOVW_BREL_NC = 84,	// Static	ARM	((S + A) | T) - B(S)  R_ARM_MOVT_BREL = 85,		// Static	ARM	S + A - B(S)  R_ARM_MOVW_BREL = 86,		// Static	ARM	((S + A) | T) - B(S)  R_ARM_THM_MOVW_BREL_NC = 87,	// Static	Thumb32	((S + A) | T) - B(S)  R_ARM_THM_MOVT_BREL = 88,	// Static	Thumb32	S + A - B(S)  R_ARM_THM_MOVW_BREL = 89,	// Static	Thumb32	((S + A) | T) - B(S)  R_ARM_TLS_GOTDESC = 90,	// Static	Data  R_ARM_TLS_CALL = 91,		// Static	ARM  R_ARM_TLS_DESCSEQ = 92,	// Static	ARM	TLS relaxation  R_ARM_THM_TLS_CALL = 93,	// Static	Thumb32  R_ARM_PLT32_ABS =  94,	// Static	Data	PLT(S) + A  R_ARM_GOT_ABS =  95,		// Static	Data	GOT(S) + A  R_ARM_GOT_PREL = 96,		// Static	Data	GOT(S) + A - P  R_ARM_GOT_BREL12 =  97,	// Static	ARM	GOT(S) + A - GOT_ORG  R_ARM_GOTOFF12 =  98,		// Static	ARM	S + A - GOT_ROG  R_ARM_GOTRELAX =  99,		// Static	Misc  R_ARM_GNU_VTENTRY = 100,	// Deprecated	Data  R_ARM_GNU_VTINHERIT = 101,	// Deprecated	Data  R_ARM_THM_JUMP11 = 102,	// Static	Thumb16	S + A - P  R_ARM_THM_JUMP8 = 103,	// Static	Thumb16	S + A - P  R_ARM_TLS_GD32 = 104,		// Static	Data	GOT(S) + A - P  R_ARM_TLS_LDM32 = 105,	// Static	Data	GOT(S) + A - P  R_ARM_TLS_LDO32 = 106,	// Static	Data	S + A - TLS  R_ARM_TLS_IE32 = 107,		// Static	Data	GOT(S) + A - P  R_ARM_TLS_LE32 = 108,		// Static	Data	S + A - tp  R_ARM_TLS_LDO12 = 109,	// Static	ARM	S + A - TLS  R_ARM_TLS_LE12 = 110,		// Static	ARM	S + A - tp  R_ARM_TLS_IE12GP = 111,	// Static	ARM	GOT(S) + A - GOT_ORG  R_ARM_PRIVATE_0 = 112,	// Private (n = 0, 1, ... 15)  R_ARM_PRIVATE_1 = 113,  R_ARM_PRIVATE_2 = 114,  R_ARM_PRIVATE_3 = 115,  R_ARM_PRIVATE_4 = 116,  R_ARM_PRIVATE_5 = 117,  R_ARM_PRIVATE_6 = 118,  R_ARM_PRIVATE_7 = 119,  R_ARM_PRIVATE_8 = 120,  R_ARM_PRIVATE_9 = 121,  R_ARM_PRIVATE_10 = 122,  R_ARM_PRIVATE_11 = 123,  R_ARM_PRIVATE_12 = 124,  R_ARM_PRIVATE_13 = 125,  R_ARM_PRIVATE_14 = 126,  R_ARM_PRIVATE_15 = 127,  R_ARM_ME_TOO = 128,		// Obsolete  R_ARM_THM_TLS_DESCSEQ16 = 129,// Static	Thumb16	  R_ARM_THM_TLS_DESCSEQ32 = 130,// Static	Thumb32  // 131 - 139			Unallocated  // 140 - 159			Dynamic		Reserved for future allocation  // 160 - 255			Unallocated}; // e_flags values used for ARM.  We only support flags defined in AAELF. enum{  EF_ARM_BE8 = 0x00800000,   // Mask to extract EABI version, not really a flag value.  EF_ARM_EABIMASK = 0xFF000000,   EF_ARM_EABI_UNKNOWN = 0x00000000,  EF_ARM_EABI_VER1 = 0x01000000,  EF_ARM_EABI_VER2 = 0x02000000,  EF_ARM_EABI_VER3 = 0x03000000,  EF_ARM_EABI_VER4 = 0x04000000,  EF_ARM_EABI_VER5 = 0x05000000,}; // Extract EABI version from flags. inline Elf_Wordarm_eabi_version(Elf_Word flags){ return flags & EF_ARM_EABIMASK; } // EABI_VER5 e_flags values for identifying soft- and hard-float ABI// choice.enum{  EF_ARM_ABI_FLOAT_SOFT = 0x200,  EF_ARM_ABI_FLOAT_HARD = 0x400,}; // Values for the Tag_CPU_arch EABI attribute.enum{  TAG_CPU_ARCH_PRE_V4,  TAG_CPU_ARCH_V4,  TAG_CPU_ARCH_V4T,  TAG_CPU_ARCH_V5T,  TAG_CPU_ARCH_V5TE,  TAG_CPU_ARCH_V5TEJ,  TAG_CPU_ARCH_V6,  TAG_CPU_ARCH_V6KZ,  TAG_CPU_ARCH_V6T2,  TAG_CPU_ARCH_V6K,  TAG_CPU_ARCH_V7,  TAG_CPU_ARCH_V6_M,  TAG_CPU_ARCH_V6S_M,  TAG_CPU_ARCH_V7E_M,  MAX_TAG_CPU_ARCH = TAG_CPU_ARCH_V7E_M,  // 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.  TAG_CPU_ARCH_V4T_PLUS_V6_M = (MAX_TAG_CPU_ARCH + 1)}; // EABI object attributes.enum{  // 0-3 are generic.  Tag_CPU_raw_name = 4,  Tag_CPU_name = 5,  Tag_CPU_arch = 6,  Tag_CPU_arch_profile = 7,  Tag_ARM_ISA_use = 8,  Tag_THUMB_ISA_use = 9,  Tag_FP_arch = 10,  Tag_WMMX_arch = 11,  Tag_Advanced_SIMD_arch = 12,  Tag_PCS_config = 13,  Tag_ABI_PCS_R9_use = 14,  Tag_ABI_PCS_RW_data = 15,  Tag_ABI_PCS_RO_data = 16,  Tag_ABI_PCS_GOT_use = 17,  Tag_ABI_PCS_wchar_t = 18,  Tag_ABI_FP_rounding = 19,  Tag_ABI_FP_denormal = 20,  Tag_ABI_FP_exceptions = 21,  Tag_ABI_FP_user_exceptions = 22,  Tag_ABI_FP_number_model = 23,  Tag_ABI_align_needed = 24,  Tag_ABI_align_preserved = 25,  Tag_ABI_enum_size = 26,  Tag_ABI_HardFP_use = 27,  Tag_ABI_VFP_args = 28,  Tag_ABI_WMMX_args = 29,  Tag_ABI_optimization_goals = 30,  Tag_ABI_FP_optimization_goals = 31,  // 32 is generic (Tag_compatibility).  Tag_undefined33 = 33,  Tag_CPU_unaligned_access = 34,  Tag_undefined35 = 35,  Tag_FP_HP_extension = 36,  Tag_undefined37 = 37,  Tag_ABI_FP_16bit_format = 38,  Tag_undefined39 = 39,  Tag_undefined40 = 40,  Tag_undefined41 = 41,  Tag_MPextension_use = 42,  Tag_undefined43 = 43,  Tag_DIV_use = 44,  Tag_nodefaults = 64,  Tag_also_compatible_with = 65,  Tag_T2EE_use = 66,  Tag_conformance = 67,  Tag_Virtualization_use = 68,  Tag_undefined69 = 69,  Tag_MPextension_use_legacy = 70,   // 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}; // Values for Tag_ABI_PCS_R9_use.enum{  AEABI_R9_V6 = 0,  AEABI_R9_SB = 1,  AEABI_R9_TLS = 2,  AEABI_R9_unused = 3}; // Values for Tag_ABI_PCS_RW_data.enum{  AEABI_PCS_RW_data_absolute = 0,  AEABI_PCS_RW_data_PCrel = 1,  AEABI_PCS_RW_data_SBrel = 2,  AEABI_PCS_RW_data_unused = 3}; // Values for Tag_ABI_enum_size.enum{  AEABI_enum_unused = 0,  AEABI_enum_short = 1,  AEABI_enum_wide = 2,  AEABI_enum_forced_wide = 3}; // For Exception Index Table. (Exception handling ABI for the ARM// architectue, Section 5)enum{  EXIDX_CANTUNWIND = 1,}; } // End namespace elfcpp. #endif // !defined(ELFCPP_ARM_H)