| 1 | //===-- Linux implementation of execve ------------------------------------===// |
|---|
| 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 "src/unistd/execve.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 | |
|---|
| 19 | namespace LIBC_NAMESPACE_DECL { |
|---|
| 20 | |
|---|
| 21 | LLVM_LIBC_FUNCTION(int, execve, |
|---|
| 22 | (const char *path, char *const argv[], char *const envp[])) { |
|---|
| 23 | int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_execve, path, argv, envp); |
|---|
| 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 will |
|---|
| 30 | // keep the compilers happy. |
|---|
| 31 | return ret; |
|---|
| 32 | } |
|---|
| 33 | |
|---|
| 34 | } // namespace LIBC_NAMESPACE_DECL |
|---|
| 35 | |
|---|
