1 // RUN: %clangxx_asan -O0 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
2 // RUN: %clangxx_asan -O0 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s
3 // RUN: %clangxx_asan -O1 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
4 // RUN: %clangxx_asan -O1 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s
5 // RUN: %clangxx_asan -O2 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
6 // RUN: %clangxx_asan -O2 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s
7 // RUN: %clangxx_asan -O3 -DSHARED_LIB %s -fPIC -shared -o %t-so.so
8 // RUN: %clangxx_asan -O3 %s %libdl -o %t && not %run %t 2>&1 | FileCheck %s
9
10 #if !defined(SHARED_LIB)
11 #include <dlfcn.h>
12 #include <stdio.h>
13 #include <string.h>
14
15 #include <string>
16
17 using std::string;
18
19 typedef void (fun_t)(int x);
20
main(int argc,char * argv[])21 int main(int argc, char *argv[]) {
22 string path = string(argv[0]) + "-so.so";
23 printf("opening %s ... \n", path.c_str());
24 void *lib = dlopen(path.c_str(), RTLD_NOW);
25 if (!lib) {
26 printf("error in dlopen(): %s\n", dlerror());
27 return 1;
28 }
29 fun_t *inc = (fun_t*)dlsym(lib, "inc");
30 if (!inc) return 1;
31 printf("ok\n");
32 inc(1);
33 inc(-1); // BOOM
34 // CHECK: {{.*ERROR: AddressSanitizer: global-buffer-overflow}}
35 // CHECK: {{READ of size 4 at 0x.* thread T0}}
36 // CHECK: {{ #0 0x.*}}
37 // CHECK: {{ #1 0x.* in main .*shared-lib-test.cpp:}}[[@LINE-4]]
38 return 0;
39 }
40 #else // SHARED_LIB
41 #include <stdio.h>
42 #include <string.h>
43
44 int pad[10];
45 int GLOB[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
46
47 extern "C"
inc(int index)48 void inc(int index) {
49 GLOB[index]++;
50 }
51
52 extern "C"
inc2(int * a,int index)53 void inc2(int *a, int index) {
54 a[index]++;
55 }
56 #endif // SHARED_LIB
57