fix: lab8 no angr

Author: YingMuo

.github/workflows/lab-autograding.yml

@@ -56,4 +56,7 @@ jobs:
                   if [ ${{ steps.lab.outputs.result }} -eq 6 ]; then
                     sudo apt install -y llvm-14
                   fi
+                  if [ ${{ steps.lab.outputs.result }} -eq 8 ]; then
+                    python3 -m pip install angr
+                  fi
                   ./validate.sh

lab5/antiasan.c

@@ -1,7 +1,6 @@
-#include <stdio.h>
 #include <string.h>
-#include <sanitizer/asan_interface.h>
 
-void antiasan(unsigned long addr) {
-        __asan_unpoison_memory_region((void *) addr, 0x200);
+void antiasan(unsigned long addr)
+{
+
 }

lab6/llvm-pass.so.cc

@@ -15,21 +15,7 @@ PreservedAnalyses LLVMPass::run(Module &M, ModuleAnalysisManager &MAM) {
   ConstantInt *debug_arg = ConstantInt::get(Int32Ty, 48763);
 
   for (auto &F : M) {
-    if(F.getName() == "main") {
-      IRBuilder<> Builder(&*F.getEntryBlock().getFirstInsertionPt());
-
-      // call debug
-      Builder.CreateCall(debug_func, debug_arg);
-
-      Argument *argc = F.getArg(0);
-      argc->replaceAllUsesWith(debug_arg);
-
-      Argument *argv = F.getArg(1);
-      Value *argv_ptr = Builder.CreateGEP(Builder.getInt8PtrTy(), argv, ConstantInt::get(Int32Ty, 1));
-      Value *newStr = Builder.CreateGlobalStringPtr("hayaku... motohayaku!");
-
-      Builder.CreateStore(newStr, argv_ptr);
-    }
+    errs() << "func: " << F.getName() << "\n";
 
   }
   return PreservedAnalyses::none();