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authorIngo Molnar <mingo@elte.hu>2010-09-24 07:12:05 (GMT)
committerIngo Molnar <mingo@elte.hu>2010-09-24 07:12:05 (GMT)
commita5a2bad55de89a0adf7d6f783cb87ab7eb1a894f (patch)
tree452cb8addc26f5c79fdd4e2fea92c78dc17fc8e8 /arch/sparc/include
parentd0303d71c2fb9bcb90a8d48e6462c78c86f70ce6 (diff)
parent46eb3b64dddd20f44e76b08676fa642dd374bf1d (diff)
downloadlinux-a5a2bad55de89a0adf7d6f783cb87ab7eb1a894f.tar.xz
Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core
Diffstat (limited to 'arch/sparc/include')
-rw-r--r--arch/sparc/include/asm/jump_label.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h
new file mode 100644
index 0000000..62e66d7
--- /dev/null
+++ b/arch/sparc/include/asm/jump_label.h
@@ -0,0 +1,32 @@
+#ifndef _ASM_SPARC_JUMP_LABEL_H
+#define _ASM_SPARC_JUMP_LABEL_H
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <asm/system.h>
+
+#define JUMP_LABEL_NOP_SIZE 4
+
+#define JUMP_LABEL(key, label) \
+ do { \
+ asm goto("1:\n\t" \
+ "nop\n\t" \
+ "nop\n\t" \
+ ".pushsection __jump_table, \"a\"\n\t"\
+ ".word 1b, %l[" #label "], %c0\n\t" \
+ ".popsection \n\t" \
+ : : "i" (key) : : label);\
+ } while (0)
+
+#endif /* __KERNEL__ */
+
+typedef u32 jump_label_t;
+
+struct jump_entry {
+ jump_label_t code;
+ jump_label_t target;
+ jump_label_t key;
+};
+
+#endif