File: static_tls.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (31 lines) | stat: -rw-r--r-- 742 bytes parent folder | download | duplicates (11) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
// REQUIRES: asan-64-bits
// Regression test: __tls_get_addr interceptor must recognize static TLS.
//
// RUN: %clangxx_asan -DSHARED %s -shared -o %t-so.so -fPIC
// RUN: %clangxx_asan %s -ldl -pthread -o %t %t-so.so
// RUN: %env_asan_opts=verbosity=2 %run %t 2>&1 | FileCheck %s

// CHECK: before
// CHECK: __tls_get_addr: static tls
// CHECK: after

// XFAIL: aarch64
// binutils 2.26 has a change that causes this test to fail on powerpc64.
// UNSUPPORTED: powerpc64 

#ifndef SHARED
#include <stdio.h>

unsigned *f();
int main(int argc, char *argv[]) {
  fprintf(stderr, "before\n");
  f();
  fprintf(stderr, "after\n");
  return 0;
}
#else  // SHARED
static __thread unsigned ThreadLocal;
unsigned *f() {
  return &ThreadLocal;
}
#endif