// arm.h -- ELF definitions specific to EM_ARM -*- C++ -*-
-// Copyright 2009, Free Software Foundation, Inc.
+// Copyright (C) 2009-2019 Free Software Foundation, Inc.
// Written by Doug Kwan <dougkwan@google.com>.
// This file is part of elfcpp.
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_DESCSEQ16 = 129,// Static Thumb16
R_ARM_THM_TLS_DESCSEQ32 = 130,// Static Thumb32
- // 131 - 139 Unallocated
+ // 131 - 135 Unallocated
+ // Relocations for Armv8.1-M Mainline (BF/BFL)
+ R_ARM_THM_BF16 = 136, // Static Thumb32 ((S + A) | T) – P
+ R_ARM_THM_BF12 = 137, // Static Thumb32 ((S + A) | T) – P
+ R_ARM_THM_BF18 = 138, // Static Thumb32 ((S + A) | T) – P
+ // 139 Unallocated
// 140 - 159 Dynamic Reserved for future allocation
- // 160 - 255 Unallocated
+ R_ARM_IRELATIVE = 160, // Dynamic
+ // 161 - 255 Unallocated
};
// e_flags values used for ARM. We only support flags defined in AAELF.
arm_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_V6_M,
TAG_CPU_ARCH_V6S_M,
TAG_CPU_ARCH_V7E_M,
- MAX_TAG_CPU_ARCH = TAG_CPU_ARCH_V7E_M,
+ TAG_CPU_ARCH_V8,
+ MAX_TAG_CPU_ARCH = TAG_CPU_ARCH_V8,
// 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)
Tag_CPU_arch_profile = 7,
Tag_ARM_ISA_use = 8,
Tag_THUMB_ISA_use = 9,
- Tag_VFP_arch = 10,
+ Tag_FP_arch = 10,
Tag_WMMX_arch = 11,
Tag_Advanced_SIMD_arch = 12,
Tag_PCS_config = 13,
Tag_ABI_FP_exceptions = 21,
Tag_ABI_FP_user_exceptions = 22,
Tag_ABI_FP_number_model = 23,
- Tag_ABI_align8_needed = 24,
- Tag_ABI_align8_preserved = 25,
+ 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_undefined33 = 33,
Tag_CPU_unaligned_access = 34,
Tag_undefined35 = 35,
- Tag_VFP_HP_extension = 36,
+ 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_MVE_arch = 48,
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 = 70
+ 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.
AEABI_enum_forced_wide = 3
};
+// Values for Tag_ABI_FP_number_model.
+enum
+{
+ AEABI_FP_number_model_none = 0,
+ AEABI_FP_number_model_ieee754_number = 1,
+ AEABI_FP_number_model_rtabi = 2,
+ AEABI_FP_number_model_ieee754_all = 3
+};
+
+// Values for Tag_ABI_VFP_args.
+enum
+{
+ AEABI_VFP_args_base = 0,
+ AEABI_VFP_args_vfp = 1,
+ AEABI_VFP_args_toolchain = 2,
+ AEABI_VFP_args_compatible = 3
+};
+
// For Exception Index Table. (Exception handling ABI for the ARM
// architectue, Section 5)
enum