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42 lines
1.1 KiB
42 lines
1.1 KiB
3 years ago
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#include "llvm-c/Disassembler.h"
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#include "llvm-c/Target.h"
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#include "llvm/MC/SubtargetFeature.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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extern "C" void LLVMFuzzerInit() {
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LLVMInitializeAllTargetInfos();
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LLVMInitializeAllTargetMCs();
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LLVMInitializeAllDisassemblers();
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}
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extern "C" int LLVMFuzzerReturnOneInput(const uint8_t *Data, size_t Size, char * AssemblyText) {
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LLVMDisasmContextRef Ctx;
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std::vector<uint8_t> DataCopy(Data, Data + Size);
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uint8_t *p = DataCopy.data();
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int r = 1;
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switch(Data[0]) {
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case 0:
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Ctx = LLVMCreateDisasmCPUFeatures("i386", "", "", nullptr, 0, nullptr, nullptr);
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if (LLVMSetDisasmOptions(Ctx, LLVMDisassembler_Option_AsmPrinterVariant) == 0) {
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abort();
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}
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break;
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//TODO other cases
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default:
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return 1;
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}
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assert(Ctx);
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if (LLVMDisasmInstruction(Ctx, p+1, Size-1, 0, AssemblyText, 80) > 0) {
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r = 0;
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}
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LLVMDisasmDispose(Ctx);
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return r;
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}
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