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1 // Test that large memset/memcpy/memmove check the entire range.
2 
3 // RUN: %clangxx_asan -O0 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \
4 // RUN:     FileCheck %s --check-prefix=CHECK-MEMSET
5 // RUN: %clangxx_asan -O1 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \
6 // RUN:     FileCheck %s --check-prefix=CHECK-MEMSET
7 // RUN: %clangxx_asan -O2 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \
8 // RUN:     FileCheck %s --check-prefix=CHECK-MEMSET
9 // RUN: %clangxx_asan -O3 -DTEST_MEMSET %s -o %t && not %run %t 2>&1 | \
10 // RUN:     FileCheck %s --check-prefix=CHECK-MEMSET
11 
12 // RUN: %clangxx_asan -O0 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \
13 // RUN:     FileCheck %s --check-prefix=CHECK-MEMCPY
14 // RUN: %clangxx_asan -O1 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \
15 // RUN:     FileCheck %s --check-prefix=CHECK-MEMCPY
16 // RUN: %clangxx_asan -O2 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \
17 // RUN:     FileCheck %s --check-prefix=CHECK-MEMCPY
18 // RUN: %clangxx_asan -O3 -DTEST_MEMCPY %s -o %t && not %run %t 2>&1 | \
19 // RUN:     FileCheck %s --check-prefix=CHECK-MEMCPY
20 
21 // RUN: %clangxx_asan -O0 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \
22 // RUN:     FileCheck %s --check-prefix=CHECK-MEMMOVE
23 // RUN: %clangxx_asan -O1 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \
24 // RUN:     FileCheck %s --check-prefix=CHECK-MEMMOVE
25 // RUN: %clangxx_asan -O2 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \
26 // RUN:     FileCheck %s --check-prefix=CHECK-MEMMOVE
27 // RUN: %clangxx_asan -O3 -DTEST_MEMMOVE %s -o %t && not %run %t 2>&1 | \
28 // RUN:     FileCheck %s --check-prefix=CHECK-MEMMOVE
29 
30 // RUN: %clangxx_asan -O2 -DTEST_MEMCPY_SIZE_OVERFLOW %s -o %t && not %run %t 2>&1 | \
31 // RUN:     FileCheck %s --check-prefix=CHECK-MEMCPY_SIZE_OVERFLOW
32 
33 #include <assert.h>
34 #include <string.h>
35 #include <stdlib.h>
36 #include <stdio.h>
37 
38 #include <sanitizer/asan_interface.h>
39 
40 typedef void *(*memcpy_t)(void *, const void *, size_t);
41 
main(int argc,char ** argv)42 int main(int argc, char **argv) {
43   char * volatile p = (char *)malloc(3000);
44   __asan_poison_memory_region(p + 512, 16);
45 #if defined(TEST_MEMSET)
46   memset(p, 0, 3000);
47   assert(p[1] == 0);
48   // CHECK-MEMSET: AddressSanitizer: use-after-poison on address
49   // CHECK-MEMSET: in {{.*}}memset
50 #else
51   char * volatile q = (char *)malloc(3000);
52 #if defined(TEST_MEMCPY)
53   memcpy(q, p, 3000);
54   // CHECK-MEMCPY: AddressSanitizer: use-after-poison on address
55   // On Mac, memmove and memcpy are the same. Accept either one.
56   // CHECK-MEMCPY: in {{.*(memmove|memcpy)}}
57 #elif defined(TEST_MEMMOVE)
58   memmove(q, p, 3000);
59   // CHECK-MEMMOVE: AddressSanitizer: use-after-poison on address
60   // CHECK-MEMMOVE: in {{.*(memmove|memcpy)}}
61 #elif defined(TEST_MEMCPY_SIZE_OVERFLOW)
62   volatile memcpy_t my_memcpy = &memcpy;
63   my_memcpy(p, q, -argc);
64   // CHECK-MEMCPY_SIZE_OVERFLOW: AddressSanitizer: negative-size-param: (size=-1)
65 #endif
66   assert(q[1] == 0);
67   free(q);
68 #endif
69   free(p);
70   return 0;
71 }
72