lttng-statedump-impl: Use generic hard irqs for Linux >= 3.12

[lttng-modules.git] / wrapper / irq.h

diff --git a/wrapper/irq.h b/wrapper/irq.h
new file mode 100644 (file)
index 0000000..b6feb0c
--- /dev/null
+++ b/wrapper/irq.h
@@ -0,0 +1,38 @@
+#ifndef _LTTNG_WRAPPER_IRQ_H
+#define _LTTNG_WRAPPER_IRQ_H
+
+/*
+ * wrapper/irq.h
+ *
+ * wrapper around linux/irq.h.
+ *
+ * Copyright (C) 2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/version.h>
+
+/*
+ * Starting from the 3.12 Linux kernel, all architectures use the
+ * generic hard irqs system. More details can be seen at commit
+ * 0244ad004a54e39308d495fee0a2e637f8b5c317 in the Linux kernel GIT.
+ */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0) \
+       || defined(CONFIG_GENERIC_HARDIRQS))
+# define CONFIG_LTTNG_HAS_LIST_IRQ
+#endif
+
+#endif /* _LTTNG_WRAPPER_IRQ_H */