diff options
| author | Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com> | 2005-12-12 00:37:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-12-12 08:57:45 -0800 |
| commit | bf8d5c52c3b6b27061e3b7d779057fd9a6cac164 (patch) | |
| tree | e4371185eba27db47282410dd490b78598d20636 /arch | |
| parent | 00d7c05ab168c10f9b520e07400923267bc04419 (diff) | |
| download | op-kernel-dev-bf8d5c52c3b6b27061e3b7d779057fd9a6cac164.zip op-kernel-dev-bf8d5c52c3b6b27061e3b7d779057fd9a6cac164.tar.gz | |
[PATCH] kprobes: increment kprobe missed count for multiprobes
When multiple probes are registered at the same address and if due to some
recursion (probe getting triggered within a probe handler), we skip calling
pre_handlers and just increment nmissed field.
The below patch make sure it walks the list for multiple probes case.
Without the below patch we get incorrect results of nmissed count for
multiple probe case.
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/kprobes.c | 2 | ||||
| -rw-r--r-- | arch/ia64/kernel/kprobes.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/kprobes.c | 2 | ||||
| -rw-r--r-- | arch/sparc64/kernel/kprobes.c | 2 | ||||
| -rw-r--r-- | arch/x86_64/kernel/kprobes.c | 2 |
5 files changed, 5 insertions, 5 deletions
diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c index 32b0c24..19edcd5 100644 --- a/arch/i386/kernel/kprobes.c +++ b/arch/i386/kernel/kprobes.c @@ -191,7 +191,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) */ save_previous_kprobe(kcb); set_current_kprobe(p, regs, kcb); - p->nmissed++; + kprobes_inc_nmissed_count(p); prepare_singlestep(p, regs); kcb->kprobe_status = KPROBE_REENTER; return 1; diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index 2895d6e..89a7040 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -630,7 +630,7 @@ static int __kprobes pre_kprobes_handler(struct die_args *args) */ save_previous_kprobe(kcb); set_current_kprobe(p, kcb); - p->nmissed++; + kprobes_inc_nmissed_count(p); prepare_ss(p, regs); kcb->kprobe_status = KPROBE_REENTER; return 1; diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 511af54..5368f9c 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -177,7 +177,7 @@ static inline int kprobe_handler(struct pt_regs *regs) save_previous_kprobe(kcb); set_current_kprobe(p, regs, kcb); kcb->kprobe_saved_msr = regs->msr; - p->nmissed++; + kprobes_inc_nmissed_count(p); prepare_singlestep(p, regs); kcb->kprobe_status = KPROBE_REENTER; return 1; diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c index 96bd09b..a97b0f0 100644 --- a/arch/sparc64/kernel/kprobes.c +++ b/arch/sparc64/kernel/kprobes.c @@ -138,7 +138,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) */ save_previous_kprobe(kcb); set_current_kprobe(p, regs, kcb); - p->nmissed++; + kprobes_inc_nmissed_count(p); kcb->kprobe_status = KPROBE_REENTER; prepare_singlestep(p, regs, kcb); return 1; diff --git a/arch/x86_64/kernel/kprobes.c b/arch/x86_64/kernel/kprobes.c index dddeb67..afe11f4 100644 --- a/arch/x86_64/kernel/kprobes.c +++ b/arch/x86_64/kernel/kprobes.c @@ -329,7 +329,7 @@ int __kprobes kprobe_handler(struct pt_regs *regs) */ save_previous_kprobe(kcb); set_current_kprobe(p, regs, kcb); - p->nmissed++; + kprobes_inc_nmissed_count(p); prepare_singlestep(p, regs); kcb->kprobe_status = KPROBE_REENTER; return 1; |
