1 // RUN: %clangxx_tsan -O1 %s -o %t && %run %t %t.tmp 2>&1 | FileCheck %s
2 #include <stdio.h>
3 #include <assert.h>
4 #include <fcntl.h>
5 #include <unistd.h>
6 #include <sys/stat.h>
7 
main(int argc,char * argv[])8 int main(int argc, char *argv[]) {
9   fprintf(stderr, "Hello world.\n");
10   assert(argv[1]);
11   unlink(argv[1]);
12   int fd = open(argv[1], O_RDWR | O_CREAT, 0600);
13   assert(fd != -1);
14   struct stat info;
15   int result = fstat(fd, &info);
16   fprintf(stderr, "permissions = 0%o\n", info.st_mode & ~S_IFMT);
17   assert(result == 0);
18   close(fd);
19   fprintf(stderr, "Done.\n");
20 }
21 
22 // CHECK: Hello world.
23 // CHECK: permissions = 0600
24 // CHECK: Done.
25