[libc-commits] [libc] [libc] Implement sched_getcpu (PR #195001)

[Jeff Bailey via libc-commits]

================
@@ -0,0 +1,31 @@
+//===----------------------------------------------------------------------===//
+//
+// 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/sched/sched_getcpu.h"
+
+#include "src/__support/OSUtil/syscall.h" // For internal syscall function.
+#include "src/__support/common.h"
+#include "src/__support/libc_errno.h"
+#include "src/__support/macros/config.h"
+
+#include <sys/syscall.h> // For syscall numbers.
+
+namespace LIBC_NAMESPACE_DECL {
+
+LLVM_LIBC_FUNCTION(int, sched_getcpu, ()) {
+  int cpu = 0;
+  int ret =
+      LIBC_NAMESPACE::syscall_impl<int>(SYS_getcpu, cpu, nullptr, nullptr);
----------------
kaladron wrote:

```suggestion
      LIBC_NAMESPACE::syscall_impl<int>(SYS_getcpu, &cpu, nullptr, nullptr);
```


https://github.com/llvm/llvm-project/pull/195001