diff options
| author | Masami Hiramatsu <mhiramat@redhat.com> | 2007-10-16 04:27:49 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 12:43:10 -0400 |
| commit | f438d914b220051d4cbc65cbc5d98e163c85c93b (patch) | |
| tree | 75e7fda155a8494595f6ae0539bbb64ef98230f6 /include/asm-ia64 | |
| parent | 49dce689ad4ef0fd1f970ef762168e4bd46f69a3 (diff) | |
kprobes: support kretprobe blacklist
Introduce architecture dependent kretprobe blacklists to prohibit users
from inserting return probes on the function in which kprobes can be
inserted but kretprobes can not.
This patch also removes "__kprobes" mark from "__switch_to" on x86_64 and
registers "__switch_to" to the blacklist on x86-64, because that mark is to
prohibit user from inserting only kretprobe.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-ia64')
| -rw-r--r-- | include/asm-ia64/kprobes.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 6c79edf24d73..a93ce9ef07ff 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h | |||
| @@ -83,6 +83,7 @@ struct kprobe_ctlblk { | |||
| 83 | }; | 83 | }; |
| 84 | 84 | ||
| 85 | #define ARCH_SUPPORTS_KRETPROBES | 85 | #define ARCH_SUPPORTS_KRETPROBES |
| 86 | #define kretprobe_blacklist_size 0 | ||
| 86 | 87 | ||
| 87 | #define SLOT0_OPCODE_SHIFT (37) | 88 | #define SLOT0_OPCODE_SHIFT (37) |
| 88 | #define SLOT1_p1_OPCODE_SHIFT (37 - (64-46)) | 89 | #define SLOT1_p1_OPCODE_SHIFT (37 - (64-46)) |