Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 1 | // RUN: %clangxx -g %s -o %t |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 2 | // RUN: %env_tool_opts=decorate_proc_maps=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-%tool_name |
| 3 | // REQUIRES: stable-runtime |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 4 | #include <errno.h> |
| 5 | #include <fcntl.h> |
| 6 | #include <pthread.h> |
| 7 | #include <stdio.h> |
| 8 | #include <sys/stat.h> |
| 9 | #include <sys/types.h> |
| 10 | #include <unistd.h> |
| 11 | |
| 12 | bool CopyFdToFd(int in_fd, int out_fd) { |
| 13 | const size_t kBufSize = 0x10000; |
| 14 | static char buf[kBufSize]; |
| 15 | while (true) { |
| 16 | ssize_t got = read(in_fd, buf, kBufSize); |
| 17 | if (got > 0) { |
| 18 | write(out_fd, buf, got); |
| 19 | } else if (got == 0) { |
| 20 | break; |
| 21 | } else if (errno != EAGAIN || errno != EWOULDBLOCK || errno != EINTR) { |
| 22 | fprintf(stderr, "error reading file, errno %d\n", errno); |
| 23 | return false; |
| 24 | } |
| 25 | } |
| 26 | return true; |
| 27 | } |
| 28 | |
| 29 | void *ThreadFn(void *arg) { |
| 30 | (void)arg; |
| 31 | int fd = open("/proc/self/maps", O_RDONLY); |
| 32 | bool res = CopyFdToFd(fd, 2); |
| 33 | close(fd); |
| 34 | return (void *)!res; |
| 35 | } |
| 36 | |
| 37 | int main(void) { |
| 38 | pthread_t t; |
| 39 | void *res; |
| 40 | pthread_create(&t, 0, ThreadFn, 0); |
| 41 | pthread_join(t, &res); |
| 42 | return (int)(size_t)res; |
| 43 | } |
| 44 | |
| 45 | // CHECK-asan: rw-p {{.*}} [low shadow] |
| 46 | // CHECK-asan: ---p {{.*}} [shadow gap] |
| 47 | // CHECK-asan: rw-p {{.*}} [high shadow] |
| 48 | |
| 49 | // CHECK-msan: ---p {{.*}} [invalid] |
Pirama Arumuga Nainar | 799172d | 2016-03-03 15:50:30 -0800 | [diff] [blame^] | 50 | // CHECK-msan: rw-p {{.*}} [shadow{{.*}}] |
| 51 | // CHECK-msan: ---p {{.*}} [origin{{.*}}] |
Pirama Arumuga Nainar | cdce50b | 2015-07-01 12:26:56 -0700 | [diff] [blame] | 52 | |
| 53 | // CHECK-tsan: rw-p {{.*}} [shadow] |
| 54 | // CHECK-tsan: rw-p {{.*}} [meta shadow] |
| 55 | // CHECK-tsan: rw-p {{.*}} [trace 0] |
| 56 | // CHECK-tsan: rw-p {{.*}} [trace header 0] |
| 57 | // CHECK-tsan: rw-p {{.*}} [trace 1] |
| 58 | // CHECK-tsan: rw-p {{.*}} [trace header 1] |
| 59 | |
| 60 | // Nothing interesting with standalone LSan. |
| 61 | // CHECK-lsan: decorate_proc_maps |