1//===-- RISCVAttributeParser.cpp - RISCV Attribute Parser -----------------===//
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#include "llvm/Support/RISCVAttributeParser.h"
10#include "llvm/ADT/StringExtras.h"
11
12using namespace llvm;
13
14const RISCVAttributeParser::DisplayHandler
15 RISCVAttributeParser::displayRoutines[] = {
16 {
17 .attribute: RISCVAttrs::ARCH,
18 .routine: &ELFCompactAttrParser::stringAttribute,
19 },
20 {
21 .attribute: RISCVAttrs::PRIV_SPEC,
22 .routine: &ELFCompactAttrParser::integerAttribute,
23 },
24 {
25 .attribute: RISCVAttrs::PRIV_SPEC_MINOR,
26 .routine: &ELFCompactAttrParser::integerAttribute,
27 },
28 {
29 .attribute: RISCVAttrs::PRIV_SPEC_REVISION,
30 .routine: &ELFCompactAttrParser::integerAttribute,
31 },
32 {
33 .attribute: RISCVAttrs::STACK_ALIGN,
34 .routine: &RISCVAttributeParser::stackAlign,
35 },
36 {
37 .attribute: RISCVAttrs::UNALIGNED_ACCESS,
38 .routine: &RISCVAttributeParser::unalignedAccess,
39 },
40 {
41 .attribute: RISCVAttrs::ATOMIC_ABI,
42 .routine: &RISCVAttributeParser::atomicAbi,
43 },
44};
45
46Error RISCVAttributeParser::atomicAbi(unsigned Tag) {
47 uint64_t Value = de.getULEB128(C&: cursor);
48 printAttribute(tag: Tag, value: Value, valueDesc: "Atomic ABI is " + utostr(X: Value));
49 return Error::success();
50}
51
52Error RISCVAttributeParser::unalignedAccess(unsigned tag) {
53 static const char *const strings[] = {"No unaligned access",
54 "Unaligned access"};
55 return parseStringAttribute(name: "Unaligned_access", tag, strings: ArrayRef(strings));
56}
57
58Error RISCVAttributeParser::stackAlign(unsigned tag) {
59 uint64_t value = de.getULEB128(C&: cursor);
60 std::string description =
61 "Stack alignment is " + utostr(X: value) + std::string("-bytes");
62 printAttribute(tag, value, valueDesc: description);
63 return Error::success();
64}
65
66Error RISCVAttributeParser::handler(uint64_t tag, bool &handled) {
67 handled = false;
68 for (const auto &AH : displayRoutines) {
69 if (uint64_t(AH.attribute) == tag) {
70 if (Error e = (this->*AH.routine)(tag))
71 return e;
72 handled = true;
73 break;
74 }
75 }
76
77 return Error::success();
78}
79