1 | //===-- Loader test to check if tls size is read correctly ----------------===// |
---|---|
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | |
9 | #include "src/__support/libc_errno.h" |
10 | #include "src/sys/mman/mmap.h" |
11 | #include "test/IntegrationTest/test.h" |
12 | |
13 | #include <sys/mman.h> |
14 | |
15 | constexpr int threadLocalDataSize = 101; |
16 | _Thread_local int a[threadLocalDataSize] = {123}; |
17 | |
18 | TEST_MAIN(int argc, char **argv, char **envp) { |
19 | ASSERT_TRUE(a[0] == 123); |
20 | |
21 | for (int i = 1; i < threadLocalDataSize; ++i) |
22 | a[i] = i; |
23 | for (int i = 1; i < threadLocalDataSize; ++i) |
24 | ASSERT_TRUE(a[i] == i); |
25 | |
26 | // Call mmap with bad params so that an error value is |
27 | // set in errno. Since errno is implemented using a thread |
28 | // local var, this helps us test setting of errno and |
29 | // reading it back. |
30 | ASSERT_ERRNO_SUCCESS(); |
31 | void *addr = LIBC_NAMESPACE::mmap(nullptr, 0, PROT_READ, |
32 | MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); |
33 | ASSERT_TRUE(addr == MAP_FAILED); |
34 | ASSERT_ERRNO_EQ(EINVAL); |
35 | |
36 | return 0; |
37 | } |
38 |