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//===-- AArch64AttributeParser.cpp - AArch64 Build Attributes PArser------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with
// LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===---------------------------------------------------------------------===//
#include "llvm/Support/AArch64AttributeParser.h"
#include "llvm/Support/AArch64BuildAttributes.h"
std::vector<llvm::SubsectionAndTagToTagName> &
llvm::AArch64AttributeParser::returnTagsNamesMap() {
static std::vector<SubsectionAndTagToTagName> TagsNamesMap = {
{"aeabi_pauthabi", 1, "Tag_PAuth_Platform"},
{"aeabi_pauthabi", 2, "Tag_PAuth_Schema"},
{"aeabi_feature_and_bits", 0, "Tag_Feature_BTI"},
{"aeabi_feature_and_bits", 1, "Tag_Feature_PAC"},
{"aeabi_feature_and_bits", 2, "Tag_Feature_GCS"}};
return TagsNamesMap;
}
llvm::AArch64BuildAttrSubsections llvm::extractBuildAttributesSubsections(
const llvm::AArch64AttributeParser &Attributes) {
llvm::AArch64BuildAttrSubsections SubSections;
auto GetPauthValue = [&Attributes](unsigned Tag) {
return Attributes.getAttributeValue("aeabi_pauthabi", Tag).value_or(0);
};
SubSections.Pauth.TagPlatform =
GetPauthValue(llvm::AArch64BuildAttributes::TAG_PAUTH_PLATFORM);
SubSections.Pauth.TagSchema =
GetPauthValue(llvm::AArch64BuildAttributes::TAG_PAUTH_SCHEMA);
auto GetFeatureValue = [&Attributes](unsigned Tag) {
return Attributes.getAttributeValue("aeabi_feature_and_bits", Tag)
.value_or(0);
};
SubSections.AndFeatures |=
GetFeatureValue(llvm::AArch64BuildAttributes::TAG_FEATURE_BTI);
SubSections.AndFeatures |=
GetFeatureValue(llvm::AArch64BuildAttributes::TAG_FEATURE_PAC) << 1;
SubSections.AndFeatures |=
GetFeatureValue(llvm::AArch64BuildAttributes::TAG_FEATURE_GCS) << 2;
return SubSections;
}
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