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| author |   Masami Hiramatsu <hiramatu@sdl.hitachi.co.jp> | 2006-03-26 01:38:19 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 08:57:04 -0800 |
| commit | c9becf58d935265919bf1cb348b2c04492c8949d (patch) | |
| tree | 57ec897e82bdd4c30eb19112be425fe4d64a1029 /kernel/kprobes.c | |
| parent | [PATCH] x86: kprobes-booster (diff) | |
| download | linux-dev-c9becf58d935265919bf1cb348b2c04492c8949d.tar.xz linux-dev-c9becf58d935265919bf1cb348b2c04492c8949d.zip | |
[PATCH] kretprobe: kretprobe-booster
In normal operation, kretprobe makes a target function return to trampoline
code. A kprobe (called trampoline_probe) has been inserted in the trampoline
code. When the kernel hits this kprobe, it calls kretprobe's handler and it
returns to the original return address.
Kretprobe-booster removes the trampoline_probe. It allows the trampoline code
to call kretprobe's handler directly instead of invoking kprobe. The
trampoline code returns to the original return address.
(changelog from Chuck Ebbert <76306.1226@compuserve.com> - thanks ;))
Signed-off-by: Masami Hiramatsu <hiramatu@sdl.hitachi.co.jp>
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>
Cc: David S. Miller <davem@davemloft.net>
Cc: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/kprobes.c')
0 files changed, 0 insertions, 0 deletions