diff options
| -rw-r--r-- | arch/arm/include/asm/kprobes.h | 1 | ||||
| -rw-r--r-- | arch/arm/kernel/kprobes.c | 5 | ||||
| -rw-r--r-- | arch/arm/kernel/traps.c | 12 |
3 files changed, 4 insertions, 14 deletions
diff --git a/arch/arm/include/asm/kprobes.h b/arch/arm/include/asm/kprobes.h index a5d0d99..bb8a19b 100644 --- a/arch/arm/include/asm/kprobes.h +++ b/arch/arm/include/asm/kprobes.h @@ -61,7 +61,6 @@ struct kprobe_ctlblk { void arch_remove_kprobe(struct kprobe *); void kretprobe_trampoline(void); -int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr); int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr); int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data); diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c index d28513f..3f9abe0 100644 --- a/arch/arm/kernel/kprobes.c +++ b/arch/arm/kernel/kprobes.c @@ -200,9 +200,12 @@ void __kprobes kprobe_handler(struct pt_regs *regs) } } -int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr) +static int __kprobes kprobe_trap_handler(struct pt_regs *regs, unsigned int instr) { + unsigned long flags; + local_irq_save(flags); kprobe_handler(regs); + local_irq_restore(flags); return 0; } diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 872f1f8..46e2c83 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -19,7 +19,6 @@ #include <linux/kallsyms.h> #include <linux/delay.h> #include <linux/init.h> -#include <linux/kprobes.h> #include <asm/atomic.h> #include <asm/cacheflush.h> @@ -328,17 +327,6 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs) get_user(instr, (u32 __user *)pc); } -#ifdef CONFIG_KPROBES - /* - * It is possible to have recursive kprobes, so we can't call - * the kprobe trap handler with the undef_lock held. - */ - if (instr == KPROBE_BREAKPOINT_INSTRUCTION && !user_mode(regs)) { - kprobe_trap_handler(regs, instr); - return; - } -#endif - if (call_undef_hook(regs, instr) == 0) return; |