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| author | David S. Miller <davem@davemloft.net> | 2010-09-17 11:09:25 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2010-09-22 16:35:09 -0400 |
| commit | dff9d3c215251022dd8bb3823c9f75edb4b63fe9 (patch) | |
| tree | 41939ab8a0530d79ea8daf212e2bfca37da05ea0 /arch/sparc/include | |
| parent | d9f5ab7b1c0a520867af389bab5d5fcdbd0e407e (diff) | |
| download | blackbird-op-linux-dff9d3c215251022dd8bb3823c9f75edb4b63fe9.tar.gz blackbird-op-linux-dff9d3c215251022dd8bb3823c9f75edb4b63fe9.zip | |
jump label: Add sparc64 support
Add jump label support for sparc64.
Signed-off-by: David S. Miller <davem@davemloft.net>
LKML-Reference: <3b5b071fcdb2afb7f67cacecfa78b14c740278a7.1284733808.git.jbaron@redhat.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
[ cleaned up some formatting ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'arch/sparc/include')
| -rw-r--r-- | arch/sparc/include/asm/jump_label.h | 32 |
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 000000000000..62e66d7b2fb6 --- /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 |
