5d59385ba6
The new code added is still very x86_64 specific. AArch64 support will be added very soon and refactoring of the loader code will be done as part of the patches adding it. Reviewed By: asteinhauser Differential Revision: https://reviews.llvm.org/D82700
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
//===-- Loader test to check if tls size is read correctly ----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "include/errno.h"
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#include "include/sys/mman.h"
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#undef NDEBUG
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#include "src/assert/assert.h"
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#include "src/errno/llvmlibc_errno.h"
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#include "src/sys/mman/mmap.h"
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constexpr int threadLocalDataSize = 101;
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_Thread_local int a[threadLocalDataSize] = {123};
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int main(int argc, char **argv, char **envp) {
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assert(a[0] == 123);
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for (int i = 1; i < threadLocalDataSize; ++i)
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a[i] = i;
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for (int i = 1; i < threadLocalDataSize; ++i)
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assert(a[i] == i);
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// Call mmap with bad params so that an error value is
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// set in errno. Since errno is implemented using a thread
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// local var, this helps us test setting of errno and
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// reading it back.
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assert(llvmlibc_errno == 0);
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void *addr = __llvm_libc::mmap(nullptr, 0, PROT_READ,
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MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
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assert(addr == MAP_FAILED);
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assert(llvmlibc_errno == EINVAL);
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return 0;
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}
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