1 files changed, 51 insertions, 0 deletions
diff --git a/src/kernel/tests/include/lapi/cpuset.h b/src/kernel/tests/include/lapi/cpuset.h
new file mode 100644
index 0000000..8f7136c
--- /dev/null
+++ b/src/kernel/tests/include/lapi/cpuset.h
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2014 Oracle and/or its affiliates. All Rights Reserved.
+ */
+
+/*
+ * Some old libcs (like glibc < 2.7) do not provide interfaces for
+ * dynamically sized cpu sets, but provide only static cpu_set_t type
+ * with no more than CPU_SETSIZE cpus in it.
+ *
+ * This file is a wrapper of the dynamic interfaces using the static ones.
+ *
+ * If the number of cpus available on the system is greater than
+ * CPU_SETSIZE, this interface will not work. Update libc in this case :)
+ */
+
+#define _GNU_SOURCE
+#include <sched.h>
+
+#ifndef LTP_CPUSET_H
+#define LTP_CPUSET_H
+
+#ifndef CPU_ALLOC
+#define CPU_ALLOC(ncpus) malloc(sizeof(cpu_set_t)); \
+if (ncpus > CPU_SETSIZE) { \
+	tst_brk(TCONF, \
+		"Your libc does not support masks with %ld cpus", (long)ncpus); \
+}
+#endif
+
+#ifndef CPU_FREE
+#define CPU_FREE(ptr) free(ptr)
+#endif
+
+#ifndef CPU_ALLOC_SIZE
+#define CPU_ALLOC_SIZE(size) sizeof(cpu_set_t)
+#endif
+
+#ifndef CPU_ZERO_S
+#define CPU_ZERO_S(size, mask) CPU_ZERO(mask)
+#endif
+
+#ifndef CPU_SET_S
+#define CPU_SET_S(cpu, size, mask) CPU_SET(cpu, mask)
+#endif
+
+#ifndef CPU_ISSET_S
+#define CPU_ISSET_S(cpu, size, mask) CPU_ISSET(cpu, mask)
+#endif
+
+#endif /* LTP_CPUSET_H */