1 //===-- RISCVAttributes.h - RISCV Attributes --------------------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file contains enumerations for RISCV attributes as defined in RISC-V 10 // ELF psABI specification. 11 // 12 // RISC-V ELF psABI specification 13 // 14 // https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md 15 // 16 //===----------------------------------------------------------------------===// 17 #ifndef LLVM_SUPPORT_RISCVATTRIBUTES_H 18 #define LLVM_SUPPORT_RISCVATTRIBUTES_H 19 20 #include "llvm/Support/Compiler.h" 21 #include "llvm/Support/ELFAttributes.h" 22 23 namespace llvm { 24 namespace RISCVAttrs { 25 26 LLVM_ABI const TagNameMap &getRISCVAttributeTags(); 27 28 enum AttrType : unsigned { 29 // Attribute types in ELF/.riscv.attributes. 30 STACK_ALIGN = 4, 31 ARCH = 5, 32 UNALIGNED_ACCESS = 6, 33 PRIV_SPEC = 8, 34 PRIV_SPEC_MINOR = 10, 35 PRIV_SPEC_REVISION = 12, 36 ATOMIC_ABI = 14, 37 }; 38 39 enum class RISCVAtomicAbiTag : unsigned { 40 // Values for Tag_RISCV_atomic_abi 41 // Defined at 42 // https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#tag_riscv_atomic_abi-14-uleb128version 43 UNKNOWN = 0, 44 A6C = 1, 45 A6S = 2, 46 A7 = 3, 47 }; 48 49 enum { NOT_ALLOWED = 0, ALLOWED = 1 }; 50 51 } // namespace RISCVAttrs 52 } // namespace llvm 53 54 #endif 55