| //===-------- ARMBuildAttrs.h - ARM Build Attributes ------------*- C++ -*-===// | |
| // | |
| // The LLVM Compiler Infrastructure | |
| // | |
| // This file is distributed under the University of Illinois Open Source | |
| // License. See LICENSE.TXT for details. | |
| // | |
| //===----------------------------------------------------------------------===// | |
| // | |
| // This file contains enumerations and support routines for ARM build attributes | |
| // as defined in ARM ABI addenda document (ABI release 2.08). | |
| // | |
| //===----------------------------------------------------------------------===// | |
| #ifndef __TARGET_ARMBUILDATTRS_H__ | |
| #define __TARGET_ARMBUILDATTRS_H__ | |
| namespace ARMBuildAttrs { | |
| enum SpecialAttr { | |
| // This is for the .cpu asm attr. It translates into one or more | |
| // AttrType (below) entries in the .ARM.attributes section in the ELF. | |
| SEL_CPU | |
| }; | |
| enum AttrType { | |
| // Rest correspond to ELF/.ARM.attributes | |
| File = 1, | |
| Section = 2, | |
| Symbol = 3, | |
| CPU_raw_name = 4, | |
| CPU_name = 5, | |
| CPU_arch = 6, | |
| CPU_arch_profile = 7, | |
| ARM_ISA_use = 8, | |
| THUMB_ISA_use = 9, | |
| VFP_arch = 10, | |
| WMMX_arch = 11, | |
| Advanced_SIMD_arch = 12, | |
| PCS_config = 13, | |
| ABI_PCS_R9_use = 14, | |
| ABI_PCS_RW_data = 15, | |
| ABI_PCS_RO_data = 16, | |
| ABI_PCS_GOT_use = 17, | |
| ABI_PCS_wchar_t = 18, | |
| ABI_FP_rounding = 19, | |
| ABI_FP_denormal = 20, | |
| ABI_FP_exceptions = 21, | |
| ABI_FP_user_exceptions = 22, | |
| ABI_FP_number_model = 23, | |
| ABI_align8_needed = 24, | |
| ABI_align8_preserved = 25, | |
| ABI_enum_size = 26, | |
| ABI_HardFP_use = 27, | |
| ABI_VFP_args = 28, | |
| ABI_WMMX_args = 29, | |
| ABI_optimization_goals = 30, | |
| ABI_FP_optimization_goals = 31, | |
| compatibility = 32, | |
| CPU_unaligned_access = 34, | |
| VFP_HP_extension = 36, | |
| ABI_FP_16bit_format = 38, | |
| MPextension_use = 42, // was 70, 2.08 ABI | |
| DIV_use = 44, | |
| nodefaults = 64, | |
| also_compatible_with = 65, | |
| T2EE_use = 66, | |
| conformance = 67, | |
| Virtualization_use = 68, | |
| MPextension_use_old = 70 | |
| }; | |
| // Magic numbers for .ARM.attributes | |
| enum AttrMagic { | |
| Format_Version = 0x41 | |
| }; | |
| // Legal Values for CPU_arch, (=6), uleb128 | |
| enum CPUArch { | |
| Pre_v4 = 0, | |
| v4 = 1, // e.g. SA110 | |
| v4T = 2, // e.g. ARM7TDMI | |
| v5T = 3, // e.g. ARM9TDMI | |
| v5TE = 4, // e.g. ARM946E_S | |
| v5TEJ = 5, // e.g. ARM926EJ_S | |
| v6 = 6, // e.g. ARM1136J_S | |
| v6KZ = 7, // e.g. ARM1176JZ_S | |
| v6T2 = 8, // e.g. ARM1156T2F_S | |
| v6K = 9, // e.g. ARM1136J_S | |
| v7 = 10, // e.g. Cortex A8, Cortex M3 | |
| v6_M = 11, // e.g. Cortex M1 | |
| v6S_M = 12, // v6_M with the System extensions | |
| v7E_M = 13 // v7_M with DSP extensions | |
| }; | |
| enum CPUArchProfile { // (=7), uleb128 | |
| Not_Applicable = 0, // pre v7, or cross-profile code | |
| ApplicationProfile = (0x41), // 'A' (e.g. for Cortex A8) | |
| RealTimeProfile = (0x52), // 'R' (e.g. for Cortex R4) | |
| MicroControllerProfile = (0x4D), // 'M' (e.g. for Cortex M3) | |
| SystemProfile = (0x53) // 'S' Application or real-time profile | |
| }; | |
| // The following have a lot of common use cases | |
| enum { | |
| //ARMISAUse (=8), uleb128 and THUMBISAUse (=9), uleb128 | |
| Not_Allowed = 0, | |
| Allowed = 1, | |
| // FP_arch (=10), uleb128 (formerly Tag_VFP_arch = 10) | |
| AllowFPv2 = 2, // v2 FP ISA permitted (implies use of the v1 FP ISA) | |
| AllowFPv3A = 3, // v3 FP ISA permitted (implies use of the v2 FP ISA) | |
| AllowFPv3B = 4, // v3 FP ISA permitted, but only D0-D15, S0-S31 | |
| AllowFPv4A = 5, // v4 FP ISA permitted (implies use of v3 FP ISA) | |
| AllowFPv4B = 6, // v4 FP ISA was permitted, but only D0-D15, S0-S31 | |
| // Tag_WMMX_arch, (=11), uleb128 | |
| AllowThumb32 = 2, // 32-bit Thumb (implies 16-bit instructions) | |
| // Tag_WMMX_arch, (=11), uleb128 | |
| AllowWMMXv1 = 2, // The user permitted this entity to use WMMX v2 | |
| // Tag_ABI_FP_denormal, (=20), uleb128 | |
| PreserveFPSign = 2, // sign when flushed-to-zero is preserved | |
| // Tag_ABI_FP_number_model, (=23), uleb128 | |
| AllowRTABI = 2, // numbers, infinities, and one quiet NaN (see [RTABI]) | |
| AllowIEE754 = 3 // this code to use all the IEEE 754-defined FP encodings | |
| }; | |
| } | |
| #endif // __TARGET_ARMBUILDATTRS_H__ |