我们这里创造了一个GetElementPtrInst 节点,之后看看图上长什么样 之后又创造了这四种指令,我们dump一下看看长相 这个case虽然没有修改当前的CI,但是修改了使用到它的function,在调用完replaceAllUsesWith函数后先前的@foo32 函数内容发生了改变 例如跑过了47行的create,就位它所依赖的代码处创建了getelemen
//Memoryoperators...FIRST_MEMORY_INST(31)HANDLE_MEMORY_INST(31,Alloca,AllocaInst)//StackmanagementHANDLE_MEMORY_INST(32,Load,LoadInst)//MemorymanipulationinstrsHANDLE_MEMORY_INST(33,Store,StoreInst)HANDLE_MEMORY_INST(34,GetElementPtr,GetElementPtrInst)HANDLE_MEMORY_INST(35,Fence,FenceInst)HANDLE_MEMOR...
这里主要介绍对getelementptr指令的处理,引入和前边Clang的Visitor相似的处理。 #include"llvm/ADT/Statistic.h"#include"llvm/IR/Function.h"#include"llvm/Pass.h"#include"llvm/Support/raw_ostream.h"#include#include<string>#include"llvm/IR/Instructions.h"#include"llvm/IR/InstVisitor.h"#include"llvm/ADT...
这里主要介绍对getelementptr指令的处理,引入和前边Clang的Visitor相似的处理。 #include "llvm/ADT/Statistic.h"#include "llvm/IR/Function.h"#include "llvm/Pass.h"#include "llvm/Support/raw_ostream.h"#include #include <string>#include "llvm/IR/Instructions.h"#include "llvm/IR/InstVisitor.h"#incl...
用字符串数组和索引创建GetElementPtrInst::Create获取一个加密字符用new LoadInst加载一个加密字符用BinaryOperator::CreateXor解密字符new StoreInst存储解密字符到Alloc 测试可加密所有类型的ANSI字符串, 包括const字符串数组, 但是不能加密非const字符串数组.也无法加密unicode字符串, 猜测可能是yag00使用的isString和isC...
Pointers must also be dereferenced with the GetElementPtrInst instruction. This means that when you look up an element in the global variable (assumingit's a struct or array), youmustdeference the pointer first! For manythings, this leads to the idiom: ...
用字符串数组和索引创建GetElementPtrInst::Create获取一个加密字符 用new LoadInst加载一个加密字符 用...
When I build obfuscator-llvm-3.6.1 on Ubuntu16.04 ,I got an error prompt , ./../lib/libLLVMAsmParser.a(LLParser.cpp.o): In function llvm::LLParser::ParseGetElementPtr(llvm::Instruction*&, llvm::LLParser::PerFunctionState&)': LLParser.cpp...
%call = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.5, i64 0, i64 0), i8* %2, i8* %3) store i32 -1907967449, i32* %switchVar br label %loopEnd2 if.else: ; preds =...
definevoid@_Z2f2v()#1{%1=call i8*@__cxa_allocate_exception(i648)#2%2=bitcast i8*%1to i8**store i8*getelementptrinbounds([6x i8],[6x i8]*@.str,i640,i640),i8**%2,align16callvoid@__cxa_throw(i8*%1,i8*bitcast(i8**@_ZTIPKc to i8*),i8*null)#3unreachable}declare i8*@_...