1 // REQUIRES: asan-64-bits
2 // Regression test: __tls_get_addr interceptor must recognize static TLS.
3 //
4 // RUN: %clangxx_asan -DSHARED %s -shared -o %t-so.so -fPIC
5 // RUN: %clangxx_asan %s -ldl -pthread -o %t %t-so.so
6 // RUN: %env_asan_opts=verbosity=2 %run %t 2>&1 | FileCheck %s
7
8 // CHECK: before
9 // CHECK: __tls_get_addr: static tls
10 // CHECK: after
11
12 // XFAIL: target=aarch64{{.*}}
13 // binutils 2.26 has a change that causes this test to fail on powerpc64.
14 // UNSUPPORTED: target=powerpc64{{.*}}
15
16 /// We call __tls_get_addr early in GetTls to work around an issue for glibc<2.25,
17 /// so we don't get a log for f().
18 // REQUIRES: glibc-2.27
19
20 #ifndef SHARED
21 #include <stdio.h>
22
23 unsigned *f();
main(int argc,char * argv[])24 int main(int argc, char *argv[]) {
25 fprintf(stderr, "before\n");
26 f();
27 fprintf(stderr, "after\n");
28 return 0;
29 }
30 #else // SHARED
31 static __thread unsigned ThreadLocal;
f()32 unsigned *f() {
33 return &ThreadLocal;
34 }
35 #endif
36