40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
//===-- Implementation of the pthread_attr_setstack -----------------===//
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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 "pthread_attr_setstack.h"
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#include "pthread_attr_setstacksize.h"
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#include "src/__support/common.h"
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#include "src/__support/macros/config.h"
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#include "src/__support/threads/thread.h" // For STACK_ALIGNMENT
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#include "src/errno/libc_errno.h"
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#include <pthread.h>
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#include <stdint.h>
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namespace LIBC_NAMESPACE_DECL {
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LLVM_LIBC_FUNCTION(int, pthread_attr_setstack,
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(pthread_attr_t *__restrict attr, void *stack,
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size_t stacksize)) {
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uintptr_t stackaddr = reinterpret_cast<uintptr_t>(stack);
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// TODO: Do we need to check for overflow on stackaddr + stacksize?
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if ((stackaddr % STACK_ALIGNMENT != 0) ||
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((stackaddr + stacksize) % STACK_ALIGNMENT != 0))
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return EINVAL;
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if (stacksize < PTHREAD_STACK_MIN)
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return EINVAL;
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attr->__stack = stack;
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attr->__stacksize = stacksize;
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return 0;
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}
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} // namespace LIBC_NAMESPACE_DECL
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