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b146a57f67
This patch adds support for the atomic_abi attribute, specifid in https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc#tag_riscv_atomic_abi-14-uleb128version. This was previously reverted due to ld.bfd segfaulting w/ unknown riscv attributes. Attribute emission is now guarded by a backend flag `--riscv-abi-attributes`, which is off by default. Linker support in LLD for attribute merging is now in a standalone patch. Reviewers: kito-cheng, MaskRay, asb Reviewed By: MaskRay Pull Request: https://github.com/llvm/llvm-project/pull/90266
28 lines
938 B
C++
28 lines
938 B
C++
//===-- RISCVAttributes.cpp - RISCV Attributes ----------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/RISCVAttributes.h"
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using namespace llvm;
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using namespace llvm::RISCVAttrs;
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static constexpr TagNameItem tagData[] = {
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{STACK_ALIGN, "Tag_stack_align"},
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{ARCH, "Tag_arch"},
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{UNALIGNED_ACCESS, "Tag_unaligned_access"},
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{PRIV_SPEC, "Tag_priv_spec"},
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{PRIV_SPEC_MINOR, "Tag_priv_spec_minor"},
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{PRIV_SPEC_REVISION, "Tag_priv_spec_revision"},
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{ATOMIC_ABI, "Tag_atomic_abi"},
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};
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constexpr TagNameMap RISCVAttributeTags{tagData};
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const TagNameMap &llvm::RISCVAttrs::getRISCVAttributeTags() {
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return RISCVAttributeTags;
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}
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