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| author | Prasanna S Panchamukhi <prasanna@in.ibm.com> | 2005-09-06 15:19:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-07 16:57:59 -0700 |
| commit | 3d97ae5b958855ac007b6f56a0f94ab8ade09e9e (patch) | |
| tree | 6258b62fdbf4fcc7086e86d920e23609022d0881 /arch/i386/kernel/traps.c | |
| parent | d0aaff9796c3310326d10da44fc0faed352a1d29 (diff) | |
| download | blackbird-op-linux-3d97ae5b958855ac007b6f56a0f94ab8ade09e9e.tar.gz blackbird-op-linux-3d97ae5b958855ac007b6f56a0f94ab8ade09e9e.zip | |
[PATCH] kprobes: prevent possible race conditions i386 changes
This patch contains the i386 architecture specific changes to prevent the
possible race conditions.
Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/kernel/traps.c')
| -rw-r--r-- | arch/i386/kernel/traps.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c index 029bf94cda7d..09a58cb6daa7 100644 --- a/arch/i386/kernel/traps.c +++ b/arch/i386/kernel/traps.c @@ -363,8 +363,9 @@ static inline void die_if_kernel(const char * str, struct pt_regs * regs, long e die(str, regs, err); } -static void do_trap(int trapnr, int signr, char *str, int vm86, - struct pt_regs * regs, long error_code, siginfo_t *info) +static void __kprobes do_trap(int trapnr, int signr, char *str, int vm86, + struct pt_regs * regs, long error_code, + siginfo_t *info) { struct task_struct *tsk = current; tsk->thread.error_code = error_code; @@ -460,7 +461,8 @@ DO_ERROR(12, SIGBUS, "stack segment", stack_segment) DO_ERROR_INFO(17, SIGBUS, "alignment check", alignment_check, BUS_ADRALN, 0) DO_ERROR_INFO(32, SIGSEGV, "iret exception", iret_error, ILL_BADSTK, 0) -fastcall void do_general_protection(struct pt_regs * regs, long error_code) +fastcall void __kprobes do_general_protection(struct pt_regs * regs, + long error_code) { int cpu = get_cpu(); struct tss_struct *tss = &per_cpu(init_tss, cpu); @@ -676,7 +678,7 @@ void unset_nmi_callback(void) EXPORT_SYMBOL_GPL(unset_nmi_callback); #ifdef CONFIG_KPROBES -fastcall void do_int3(struct pt_regs *regs, long error_code) +fastcall void __kprobes do_int3(struct pt_regs *regs, long error_code) { if (notify_die(DIE_INT3, "int3", regs, error_code, 3, SIGTRAP) == NOTIFY_STOP) @@ -710,7 +712,7 @@ fastcall void do_int3(struct pt_regs *regs, long error_code) * find every occurrence of the TF bit that could be saved away even * by user code) */ -fastcall void do_debug(struct pt_regs * regs, long error_code) +fastcall void __kprobes do_debug(struct pt_regs * regs, long error_code) { unsigned int condition; struct task_struct *tsk = current; |
