write.cpp
871 Bytes
//===-- Linux implementation of write -------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/unistd/write.h"
#include "config/linux/syscall.h" // For internal syscall function.
#include "include/sys/syscall.h" // For syscall numbers.
#include "src/__support/common.h"
#include "src/errno/llvmlibc_errno.h"
namespace __llvm_libc {
ssize_t LLVM_LIBC_ENTRYPOINT(write)(int fd, const void *buf, size_t count) {
long ret = __llvm_libc::syscall(SYS_write, fd, buf, count);
if (ret < 0) {
llvmlibc_errno = -ret;
return -1;
}
return ret;
}
} // namespace __llvm_libc