1*71db0c75SAndroid Build Coastguard Worker //===-- Linux implementation of write -------------------------------------===// 2*71db0c75SAndroid Build Coastguard Worker // 3*71db0c75SAndroid Build Coastguard Worker // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*71db0c75SAndroid Build Coastguard Worker // See https://llvm.org/LICENSE.txt for license information. 5*71db0c75SAndroid Build Coastguard Worker // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*71db0c75SAndroid Build Coastguard Worker // 7*71db0c75SAndroid Build Coastguard Worker //===----------------------------------------------------------------------===// 8*71db0c75SAndroid Build Coastguard Worker 9*71db0c75SAndroid Build Coastguard Worker #include "src/unistd/write.h" 10*71db0c75SAndroid Build Coastguard Worker 11*71db0c75SAndroid Build Coastguard Worker #include "src/__support/OSUtil/syscall.h" // For internal syscall function. 12*71db0c75SAndroid Build Coastguard Worker #include "src/__support/common.h" 13*71db0c75SAndroid Build Coastguard Worker #include "src/__support/macros/config.h" 14*71db0c75SAndroid Build Coastguard Worker #include "src/errno/libc_errno.h" 15*71db0c75SAndroid Build Coastguard Worker 16*71db0c75SAndroid Build Coastguard Worker #include <sys/syscall.h> // For syscall numbers. 17*71db0c75SAndroid Build Coastguard Worker 18*71db0c75SAndroid Build Coastguard Worker namespace LIBC_NAMESPACE_DECL { 19*71db0c75SAndroid Build Coastguard Worker 20*71db0c75SAndroid Build Coastguard Worker LLVM_LIBC_FUNCTION(ssize_t, write, (int fd, const void *buf, size_t count)) { 21*71db0c75SAndroid Build Coastguard Worker ssize_t ret = 22*71db0c75SAndroid Build Coastguard Worker LIBC_NAMESPACE::syscall_impl<ssize_t>(SYS_write, fd, buf, count); 23*71db0c75SAndroid Build Coastguard Worker if (ret < 0) { 24*71db0c75SAndroid Build Coastguard Worker libc_errno = static_cast<int>(-ret); 25*71db0c75SAndroid Build Coastguard Worker return -1; 26*71db0c75SAndroid Build Coastguard Worker } 27*71db0c75SAndroid Build Coastguard Worker return ret; 28*71db0c75SAndroid Build Coastguard Worker } 29*71db0c75SAndroid Build Coastguard Worker 30*71db0c75SAndroid Build Coastguard Worker } // namespace LIBC_NAMESPACE_DECL 31