1 //===-- Implementation of the pthread_attr_getstack -----------------===// 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 "pthread_attr_getstack.h" 10 #include "pthread_attr_getstacksize.h" 11 12 #include "src/__support/common.h" 13 #include "src/__support/macros/config.h" 14 #include "src/__support/macros/optimization.h" 15 16 #include <pthread.h> 17 18 namespace LIBC_NAMESPACE_DECL { 19 20 LLVM_LIBC_FUNCTION(int, pthread_attr_getstack, 21 (const pthread_attr_t *__restrict attr, 22 void **__restrict stack, size_t *__restrict stacksize)) { 23 // As of writing this `pthread_attr_getstacksize` can never fail. 24 int result = LIBC_NAMESPACE::pthread_attr_getstacksize(attr, stacksize); 25 if (LIBC_UNLIKELY(result != 0)) 26 return result; 27 *stack = attr->__stack; 28 return 0; 29 } 30 31 } // namespace LIBC_NAMESPACE_DECL 32