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| author | Abhishek Sagar <sagar.abhishek@gmail.com> | 2008-02-06 01:38:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-06 10:41:11 -0800 |
| commit | f47cd9b553aaada602449204513b5a5b29cba263 (patch) | |
| tree | 079ddd399b1aa00a8c413ef51f3b8681a19a6e7e /include/linux | |
| parent | 5beec4aa2ac261b0b4992fb41df40a7ab91e4fad (diff) | |
| download | linux-f47cd9b553aaada602449204513b5a5b29cba263.tar.gz linux-f47cd9b553aaada602449204513b5a5b29cba263.tar.bz2 linux-f47cd9b553aaada602449204513b5a5b29cba263.zip | |
kprobes: kretprobe user entry-handler
Provide support to add an optional user defined callback to be run at
function entry of a kretprobe'd function. Also modify the kprobe smoke
tests to include an entry-handler during the kretprobe sanity test.
Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com>
Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Acked-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kprobes.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 6168c0a44172..4a6ce82ba039 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -152,8 +152,10 @@ static inline int arch_trampoline_kprobe(struct kprobe *p) struct kretprobe { struct kprobe kp; kretprobe_handler_t handler; + kretprobe_handler_t entry_handler; int maxactive; int nmissed; + size_t data_size; struct hlist_head free_instances; struct hlist_head used_instances; }; @@ -164,6 +166,7 @@ struct kretprobe_instance { struct kretprobe *rp; kprobe_opcode_t *ret_addr; struct task_struct *task; + char data[0]; }; struct kretprobe_blackpoint { |