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/ELFAttributes.h"
21
22namespace llvm {
23namespace RISCVAttrs {
24
25const TagNameMap &getRISCVAttributeTags();
26
27enum AttrType : unsigned {
28 // Attribute types in ELF/.riscv.attributes.
29 STACK_ALIGN = 4,
30 ARCH = 5,
31 UNALIGNED_ACCESS = 6,
32 PRIV_SPEC = 8,
33 PRIV_SPEC_MINOR = 10,
34 PRIV_SPEC_REVISION = 12,
35 ATOMIC_ABI = 14,
36};
37
38enum class RISCVAtomicAbiTag : unsigned {
39 // Values for Tag_RISCV_atomic_abi
40 // Defined at
41 // https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#tag_riscv_atomic_abi-14-uleb128version
42 UNKNOWN = 0,
43 A6C = 1,
44 A6S = 2,
45 A7 = 3,
46};
47
48enum { NOT_ALLOWED = 0, ALLOWED = 1 };
49
50} // namespace RISCVAttrs
51} // namespace llvm
52
53#endif
54