| 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/errno/libc_errno.h" |
| 10 | #include "src/sys/mman/mmap.h" |
| 11 | #include "test/IntegrationTest/test.h" |
| 12 | |
| 13 | #include <errno.h> |
| 14 | #include <sys/mman.h> |
| 15 | |
| 16 | constexpr int threadLocalDataSize = 101; |
| 17 | _Thread_local int a[threadLocalDataSize] = {123}; |
| 18 | |
| 19 | TEST_MAIN(int argc, char **argv, char **envp) { |
| 20 | ASSERT_TRUE(a[0] == 123); |
| 21 | |
| 22 | for (int i = 1; i < threadLocalDataSize; ++i) |
| 23 | a[i] = i; |
| 24 | for (int i = 1; i < threadLocalDataSize; ++i) |
| 25 | ASSERT_TRUE(a[i] == i); |
| 26 | |
| 27 | // Call mmap with bad params so that an error value is |
| 28 | // set in errno. Since errno is implemented using a thread |
| 29 | // local var, this helps us test setting of errno and |
| 30 | // reading it back. |
| 31 | ASSERT_ERRNO_SUCCESS(); |
| 32 | void *addr = LIBC_NAMESPACE::mmap(addr: nullptr, size: 0, PROT_READ, |
| 33 | MAP_ANONYMOUS | MAP_PRIVATE, fd: -1, offset: 0); |
| 34 | ASSERT_TRUE(addr == MAP_FAILED); |
| 35 | ASSERT_ERRNO_EQ(EINVAL); |
| 36 | |
| 37 | return 0; |
| 38 | } |
| 39 |