da0ad392ff
Reland #174731, resolve cyclic dependency issue. The use of LLVM_Object in LLVM_Util would cause cyclic dependency. Fix cyclic dependency by reimplement `getFeatureSetFromEFlag()`. Original description: --- This PR updates llvm-objdump to detect the specific AVR architecture from the ELF header flags when no specific CPU is provided. Fixes: https://github.com/llvm/llvm-project/issues/146451 Signed-off-by: Ruoyu Qiu <cabbaken@outlook.com>
51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
//===-- AVRTargetParser - Parser for AVR target features ------------------===//
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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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///
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/// \file
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/// This file implements a target parser to recognise AVR hardware features.
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///
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//===----------------------------------------------------------------------===//
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#include "llvm/TargetParser/AVRTargetParser.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/BinaryFormat/ELF.h"
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#include "llvm/Support/Errc.h"
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using namespace llvm;
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Expected<std::string> AVR::getFeatureSetFromEFlag(const unsigned EFlag) {
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static const DenseMap<unsigned, StringRef> EFlagToFeatureSet = {
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{ELF::EF_AVR_ARCH_AVR1, "avr1"},
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{ELF::EF_AVR_ARCH_AVR2, "avr2"},
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{ELF::EF_AVR_ARCH_AVR25, "avr25"},
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{ELF::EF_AVR_ARCH_AVR3, "avr3"},
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{ELF::EF_AVR_ARCH_AVR31, "avr31"},
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{ELF::EF_AVR_ARCH_AVR35, "avr35"},
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{ELF::EF_AVR_ARCH_AVR4, "avr4"},
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{ELF::EF_AVR_ARCH_AVR5, "avr5"},
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{ELF::EF_AVR_ARCH_AVR51, "avr51"},
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{ELF::EF_AVR_ARCH_AVR6, "avr6"},
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{ELF::EF_AVR_ARCH_AVRTINY, "avrtiny"},
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{ELF::EF_AVR_ARCH_XMEGA1, "xmega1"},
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{ELF::EF_AVR_ARCH_XMEGA2, "xmega2"},
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{ELF::EF_AVR_ARCH_XMEGA3, "xmega3"},
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{ELF::EF_AVR_ARCH_XMEGA4, "xmega4"},
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{ELF::EF_AVR_ARCH_XMEGA5, "xmega"},
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{ELF::EF_AVR_ARCH_XMEGA6, "xmega"},
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{ELF::EF_AVR_ARCH_XMEGA7, "xmega"},
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};
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auto It = EFlagToFeatureSet.find(EFlag);
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if (It != EFlagToFeatureSet.end())
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return It->second.str();
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return createStringError(errc::invalid_argument,
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"unrecognised AVR version, 0x" +
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Twine::utohexstr(EFlag));
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}
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