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