perf_counter tools: Share rbtree.with the kernel

[pandora-kernel.git] / tools / perf / util / include / linux / kernel.h

diff --git a/tools/perf/util/include/linux/kernel.h b/tools/perf/util/include/linux/kernel.h
new file mode 100644 (file)
index 0000000..99c1b3d
--- /dev/null
+++ b/tools/perf/util/include/linux/kernel.h
@@ -0,0 +1,21 @@
+#ifndef PERF_LINUX_KERNEL_H_
+#define PERF_LINUX_KERNEL_H_
+
+#ifndef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif
+
+#ifndef container_of
+/**
+ * container_of - cast a member of a structure out to the containing structure
+ * @ptr:       the pointer to the member.
+ * @type:      the type of the container struct this is embedded in.
+ * @member:    the name of the member within the struct.
+ *
+ */
+#define container_of(ptr, type, member) ({                     \
+       const typeof(((type *)0)->member) * __mptr = (ptr);     \
+       (type *)((char *)__mptr - offsetof(type, member)); })
+#endif
+
+#endif