1 // RUN: %clangxx_asan -O0 %s -o %t
2 // RUN: not %run %t 2>&1 | FileCheck %s
3 // RUN: echo "interceptor_via_fun:bad_function" > %t.supp
4 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
5 // RUN: echo "interceptor_name:strncpy" > %t.supp
6 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
7 //
8 // RUN: %clangxx_asan -O1 %s -o %t
9 // RUN: not %run %t 2>&1 | FileCheck %s
10 // RUN: echo "interceptor_via_fun:bad_function" > %t.supp
11 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
12 // RUN: echo "interceptor_name:strncpy" > %t.supp
13 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
14 //
15 // RUN: %clangxx_asan -O2 %s -o %t
16 // RUN: not %run %t 2>&1 | FileCheck %s
17 // RUN: echo "interceptor_via_fun:bad_function" > %t.supp
18 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
19 // RUN: echo "interceptor_name:strncpy" > %t.supp
20 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
21 //
22 // RUN: %clangxx_asan -O3 %s -o %t
23 // RUN: not %run %t 2>&1 | FileCheck %s
24 // RUN: echo "interceptor_via_fun:bad_function" > %t.supp
25 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
26 // RUN: echo "interceptor_name:strncpy" > %t.supp
27 // RUN: %env_asan_opts=suppressions='"%t.supp"' %run %t
28
29 // UNSUPPORTED: android
30
31 #include <string.h>
32
33
34 // Don't inline function otherwise stacktrace changes.
bad_function()35 __attribute__((noinline)) void bad_function() {
36 char buffer[] = "hello";
37 // CHECK: strncpy-param-overlap: memory ranges
38 // CHECK: [{{0x.*,[ ]*0x.*}}) and [{{0x.*,[ ]*0x.*}}) overlap
39 // CHECK: {{#0 0x.* in .*strncpy}}
40 // CHECK: {{#1 0x.* in bad_function.*strncpy-overlap.cpp:}}[[@LINE+2]]
41 // CHECK: {{#2 0x.* in main .*strncpy-overlap.cpp:}}[[@LINE+5]]
42 strncpy(buffer, buffer + 1, 5); // BOOM
43 }
44
main(int argc,char ** argv)45 int main(int argc, char **argv) {
46 bad_function();
47 return 0;
48 }
49