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-rw-r--r--libc/src/sched/linux/getcpu.cpp29
1 files changed, 29 insertions, 0 deletions
diff --git a/libc/src/sched/linux/getcpu.cpp b/libc/src/sched/linux/getcpu.cpp
new file mode 100644
index 0000000..a34b693
--- /dev/null
+++ b/libc/src/sched/linux/getcpu.cpp
@@ -0,0 +1,29 @@
+//===-- Implementation of getcpu ------------------------------------------===//
+//
+// 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/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, getcpu, (unsigned int *cpu, unsigned int *node)) {
+ int ret = LIBC_NAMESPACE::syscall_impl<int>(SYS_getcpu, cpu, node, nullptr);
+ if (ret < 0) {
+ libc_errno = -ret;
+ return -1;
+ }
+ return 0;
+}
+
+} // namespace LIBC_NAMESPACE_DECL