Merge pull request #475 from vivian921207/lab6

[LAB6] 111550064

Author: YingMuo

lab3/main_test.js

@@ -2,6 +2,7 @@ const {describe, it} = require('node:test');
 const assert = require('assert');
 const { Calculator } = require('./main');
 
+
 const calc = new Calculator();
 
 describe('Calculator', () => {
@@ -60,3 +61,4 @@ describe('Calculator', () => {
         assert.throws(() => calc.log(-3), { message: 'math domain error (2)' });
     });
 });
+

lab4/main_test.js

@@ -1,6 +1,7 @@
 const puppeteer = require('puppeteer');
 
 (async () => {
+
   const browser = await puppeteer.launch({
     headless: true,      // ← 顯示瀏覽器畫面
     slowMo: 100           // ← 每步操作加 100ms 延遲，方便觀察
@@ -49,3 +50,4 @@ const puppeteer = require('puppeteer');
   }
   await browser.close();  
 })();
+

lab5/antiasan.c

@@ -1,3 +1,4 @@
+
 #include <stdint.h>
 #include <string.h>
 #include <stdio.h>
@@ -15,4 +16,5 @@ void antiasan(unsigned long addr) {
         *(char *)shadow_end = 0x00;
         }
 
+
 }

lab6/llvm-pass.so.cc

@@ -1,6 +1,9 @@
 #include "llvm/Passes/PassPlugin.h"
 #include "llvm/Passes/PassBuilder.h"
 #include "llvm/IR/IRBuilder.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/Module.h"
+#include "llvm/IR/Instructions.h"
 
 using namespace llvm;
 
@@ -11,13 +14,35 @@ struct LLVMPass : public PassInfoMixin<LLVMPass> {
 PreservedAnalyses LLVMPass::run(Module &M, ModuleAnalysisManager &MAM) {
   LLVMContext &Ctx = M.getContext();
   IntegerType *Int32Ty = IntegerType::getInt32Ty(Ctx);
-  FunctionCallee debug_func = M.getOrInsertFunction("debug", Int32Ty);
+  PointerType *Int8PtrTy = Type::getInt8PtrTy(Ctx);
+
+  // 宣告 debug(int) 函式
+  FunctionType *DebugFuncTy = FunctionType::get(Type::getVoidTy(Ctx), {Int32Ty}, false);
+  FunctionCallee debug_func = M.getOrInsertFunction("debug", DebugFuncTy);
   ConstantInt *debug_arg = ConstantInt::get(Int32Ty, 48763);
 
-  for (auto &F : M) {
-    errs() << "func: " << F.getName() << "\n";
+  for (Function &F : M) {
+    if (F.getName() != "main") continue;
+
+    // 取得 main 的參數 argc, argv
+    Argument *argc = F.getArg(0);
+    Argument *argv = F.getArg(1);
+
+    // 插入點：main 的開頭
+    IRBuilder<> IRB(&*F.getEntryBlock().getFirstInsertionPt());
+
+    // 1️⃣ 呼叫 debug(48763)
+    IRB.CreateCall(debug_func, debug_arg);
 
+    // 2️⃣ 將 argc 的所有用途替換為常數 48763
+    argc->replaceAllUsesWith(debug_arg);
+
+    // 3️⃣ 將 argv[1] 設為 "hayaku... motohayaku!"
+    Value *argv1_ptr = IRB.CreateGEP(argv->getType()->getPointerElementType(), argv, ConstantInt::get(Int32Ty, 1));
+    Value *str_val = IRB.CreateGlobalStringPtr("hayaku... motohayaku!");
+    IRB.CreateStore(str_val, argv1_ptr);
   }
+
   return PreservedAnalyses::none();
 }
 
@@ -31,4 +56,3 @@ llvmGetPassPluginInfo() {
         });
     }};
 }
-