35 lines · cpp
1//===-- Linux implementation of execv -------------------------------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/unistd/execv.h"10#include "src/__support/macros/config.h"11#include "src/unistd/environ.h"12 13#include "src/__support/OSUtil/syscall.h" // For internal syscall function.14#include "src/__support/common.h"15 16#include "src/__support/libc_errno.h"17#include <sys/syscall.h> // For syscall numbers.18 19namespace LIBC_NAMESPACE_DECL {20 21LLVM_LIBC_FUNCTION(int, execv, (const char *path, char *const argv[])) {22 int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_execve, path, argv,23 LIBC_NAMESPACE::environ);24 if (ret < 0) {25 libc_errno = -ret;26 return -1;27 }28 29 // Control will not reach here on success but have a return statement will30 // keep the compilers happy.31 return ret;32}33 34} // namespace LIBC_NAMESPACE_DECL35