| //===-- Linux implementation of sysconf -----------------------------------===// |
| // |
| // 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/sysconf.h" |
| |
| #include "src/__support/common.h" |
| |
| #include "src/errno/libc_errno.h" |
| #include <linux/param.h> // For EXEC_PAGESIZE. |
| #include <unistd.h> |
| |
| namespace __llvm_libc { |
| |
| LLVM_LIBC_FUNCTION(long, sysconf, (int name)) { |
| long ret = 0; |
| if (name == _SC_PAGESIZE) { |
| // TODO: get this information from the auxvector. |
| return EXEC_PAGESIZE; |
| } |
| // TODO: Complete the rest of the sysconf options. |
| if (ret < 0) { |
| libc_errno = EINVAL; |
| return -1; |
| } |
| return ret; |
| } |
| |
| } // namespace __llvm_libc |
