compiler-rt/test/asan/TestCases/Windows/intercept_memcpy.cpp

   1 // RUN: %clang_cl_asan %Od %s %Fe%t
   2 // RUN: not %run %t 2>&1 | FileCheck %s
   3
   4 #include <stdio.h>
   5 #include <string.h>
   6
   7 void call_memcpy(void* (*f)(void *, const void *, size_t),
   8                  void *a, const void *b, size_t c) {
   9   f(a, b, c);
  10 }
  11
  12 int main() {
  13   char buff1[6] = "Hello", buff2[5];
  14
  15   call_memcpy(&memcpy, buff2, buff1, 5);
  16   if (buff1[2] != buff2[2])
  17     return 2;
  18   printf("Initial test OK\n");
  19   fflush(0);
  20 // CHECK: Initial test OK
  21
  22   call_memcpy(&memcpy, buff2, buff1, 6);
  23 // CHECK: AddressSanitizer: stack-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
  24 // CHECK: WRITE of size 6 at [[ADDR]] thread T0
  25 // CHECK-NEXT:  mem{{.*}}
  26 // CHECK-NEXT:  call_mem{{.*}}
  27 // CHECK-NEXT:  main {{.*}}intercept_memcpy.cpp:[[@LINE-5]]
  28 // CHECK: Address [[ADDR]] is located in stack of thread T0 at offset {{.*}} in frame
  29 // CHECK-NEXT:   #0 {{.*}} main
  30 // CHECK: 'buff2'{{.*}} <== Memory access at offset {{.*}} overflows this variable
  31 }