diff options
| author | Masami Hiramatsu <[email protected]> | 2010-11-18 19:16:55 +0900 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2010-11-18 13:40:19 +0100 |
| commit | de31ec8a31046111befd16a7083e3bdda2ff42cf (patch) | |
| tree | 56eb69033dee2c2a81f69318408a71b0c937e582 | |
| parent | 94e8ba728640dc01375a14e337f3b892bfacbeeb (diff) | |
x86/kprobes: Prevent kprobes to probe on save_args()
Prevent kprobes to probe on save_args() since this function
will be called from breakpoint exception handler. That will
cause infinit loop on breakpoint handling.
Signed-off-by: Masami Hiramatsu <[email protected]>
Cc: [email protected]
Cc: Ananth N Mavinakayanahalli <[email protected]>
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
| -rw-r--r-- | arch/x86/kernel/entry_64.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index fe2690d71c0c..e3ba417e8697 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -295,6 +295,7 @@ ENDPROC(native_usergs_sysret64) .endm /* save partial stack frame */ + .pushsection .kprobes.text, "ax" ENTRY(save_args) XCPT_FRAME cld @@ -334,6 +335,7 @@ ENTRY(save_args) ret CFI_ENDPROC END(save_args) + .popsection ENTRY(save_rest) PARTIAL_FRAME 1 REST_SKIP+8 |