mirror of
https://github.com/lifting-bits/mcsema
synced 2026-06-08 15:31:09 +00:00
Peter Goodman
641cfef7e5
* Reformatting Annotation.cpp * WIP * Things build for me, but I need to do more extensive testing. * Missing instruction * Updated docs; got demos working, except demo17, which probably never ran. * entry_pc can be 0; use -1 instead
31 lines
865 B
C++
31 lines
865 B
C++
#include "Annotation.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Type.h"
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#include "llvm/IR/Metadata.h"
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#include "llvm/IR/BasicBlock.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/LLVMContext.h"
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#include <string>
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const char * const kRealEIPAnnotation = "mcsema_real_eip";
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void addAnnotation(llvm::Instruction *inst, VA addr) {
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auto C = llvm::ConstantInt::get(
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llvm::Type::getInt64Ty(llvm::getGlobalContext()), addr);
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auto n = llvm::MDNode::get(llvm::getGlobalContext(), C);
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inst->setMetadata(kRealEIPAnnotation, n);
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}
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bool getAnnotation(llvm::Instruction *inst, VA &its_eip) {
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if (auto metad = inst->getMetadata(kRealEIPAnnotation)) {
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if (auto val = metad->getOperand(0)) {
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if (auto ci = llvm::dyn_cast<llvm::ConstantInt>(val)) {
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its_eip = ci->getLimitedValue();
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return true;
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}
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}
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}
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return false;
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}
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