34 lines
1010 B
C++
34 lines
1010 B
C++
//===-- Linux implementation of execv -------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "src/unistd/execv.h"
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#include "src/unistd/environ.h"
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#include "src/__support/OSUtil/syscall.h" // For internal syscall function.
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#include "src/__support/common.h"
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#include <errno.h>
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#include <sys/syscall.h> // For syscall numbers.
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namespace __llvm_libc {
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LLVM_LIBC_FUNCTION(int, execv, (const char *path, char *const argv[])) {
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long ret =
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__llvm_libc::syscall_impl(SYS_execve, path, argv, __llvm_libc::environ);
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if (ret < 0) {
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errno = -ret;
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return -1;
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}
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// Control will not reach here on success but have a return statement will
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// keep the compilers happy.
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return ret;
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}
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} // namespace __llvm_libc
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