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055a23f745
Leverage ARM ELF build attribute section to create ELF attribute section for RISC-V. Extract the common part of parsing logic for this section into ELFAttributeParser.[cpp|h] and ELFAttributes.[cpp|h]. Differential Revision: https://reviews.llvm.org/D74023
68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
//===-- RISCVAttributeParser.cpp - RISCV Attribute Parser -----------------===//
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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/RISCVAttributeParser.h"
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#include "llvm/ADT/StringExtras.h"
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using namespace llvm;
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const RISCVAttributeParser::DisplayHandler
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RISCVAttributeParser::displayRoutines[] = {
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{
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RISCVAttrs::ARCH,
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&ELFAttributeParser::stringAttribute,
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},
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{
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RISCVAttrs::PRIV_SPEC,
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&ELFAttributeParser::integerAttribute,
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},
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{
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RISCVAttrs::PRIV_SPEC_MINOR,
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&ELFAttributeParser::integerAttribute,
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},
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{
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RISCVAttrs::PRIV_SPEC_REVISION,
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&ELFAttributeParser::integerAttribute,
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},
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{
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RISCVAttrs::STACK_ALIGN,
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&RISCVAttributeParser::stackAlign,
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},
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{
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RISCVAttrs::UNALIGNED_ACCESS,
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&RISCVAttributeParser::unalignedAccess,
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}};
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Error RISCVAttributeParser::unalignedAccess(unsigned tag) {
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static const char *strings[] = {"No unaligned access", "Unaligned access"};
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return parseStringAttribute("Unaligned_access", tag, makeArrayRef(strings));
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}
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Error RISCVAttributeParser::stackAlign(unsigned tag) {
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uint64_t value = de.getULEB128(cursor);
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std::string description =
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"Stack alignment is " + utostr(value) + std::string("-bytes");
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printAttribute(tag, value, description);
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return Error::success();
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}
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Error RISCVAttributeParser::handler(uint64_t tag, bool &handled) {
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handled = false;
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for (unsigned AHI = 0, AHE = array_lengthof(displayRoutines); AHI != AHE;
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++AHI) {
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if (uint64_t(displayRoutines[AHI].attribute) == tag) {
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if (Error e = (this->*displayRoutines[AHI].routine)(tag))
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return e;
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handled = true;
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break;
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}
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}
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return Error::success();
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}
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