diff options
Diffstat (limited to 'arch/sh/kernel')
-rw-r--r-- | arch/sh/kernel/kprobes.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/arch/sh/kernel/kprobes.c b/arch/sh/kernel/kprobes.c index a478ba78e752..e357e3669a34 100644 --- a/arch/sh/kernel/kprobes.c +++ b/arch/sh/kernel/kprobes.c @@ -115,20 +115,20 @@ void __kprobes arch_remove_kprobe(struct kprobe *p) } } -static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb) +static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb) { kcb->prev_kprobe.kp = kprobe_running(); kcb->prev_kprobe.status = kcb->kprobe_status; } -static inline void restore_previous_kprobe(struct kprobe_ctlblk *kcb) +static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb) { __get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp; kcb->kprobe_status = kcb->prev_kprobe.status; } -static inline void set_current_kprobe(struct kprobe *p, struct pt_regs *regs, - struct kprobe_ctlblk *kcb) +static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs, + struct kprobe_ctlblk *kcb) { __get_cpu_var(current_kprobe) = p; } @@ -138,7 +138,7 @@ static inline void set_current_kprobe(struct kprobe *p, struct pt_regs *regs, * on the next instruction, following branches. Two probes are set if the * branch is conditional. */ -static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs) +static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs) { kprobe_opcode_t *addr = NULL; saved_current_opcode.addr = (kprobe_opcode_t *) (regs->pc); @@ -273,12 +273,12 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) /* handler has already set things up, so skip ss setup */ return 1; - ss_probe: +ss_probe: prepare_singlestep(p, regs); kcb->kprobe_status = KPROBE_HIT_SS; return 1; - no_kprobe: +no_kprobe: preempt_enable_no_resched(); return ret; } @@ -358,7 +358,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) return orig_ret_address; } -static inline int post_kprobe_handler(struct pt_regs *regs) +static int __kprobes post_kprobe_handler(struct pt_regs *regs) { struct kprobe *cur = kprobe_running(); struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); @@ -391,14 +391,15 @@ static inline int post_kprobe_handler(struct pt_regs *regs) } } - /*Restore back the original saved kprobes variables and continue. */ + /* Restore back the original saved kprobes variables and continue. */ if (kcb->kprobe_status == KPROBE_REENTER) { restore_previous_kprobe(kcb); goto out; } + reset_current_kprobe(); - out: +out: preempt_enable_no_resched(); return 1; @@ -463,6 +464,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) default: break; } + return 0; } @@ -498,8 +500,8 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, ret = NOTIFY_STOP; } else { p = __get_cpu_var(current_kprobe); - if (p->break_handler - && p->break_handler(p, args->regs)) + if (p->break_handler && + p->break_handler(p, args->regs)) ret = NOTIFY_STOP; } } @@ -542,25 +544,26 @@ void __kprobes jprobe_return(void) int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - u8 *addr = (u8 *) regs->pc; unsigned long stack_addr = kcb->jprobe_saved_r15; + u8 *addr = (u8 *)regs->pc; - if ((addr >= (u8 *) jprobe_return) - && (addr <= (u8 *) jprobe_return_end)) { + if ((addr >= (u8 *)jprobe_return) && + (addr <= (u8 *)jprobe_return_end)) { *regs = kcb->jprobe_saved_regs; - memcpy((kprobe_opcode_t *) stack_addr, kcb->jprobes_stack, + memcpy((kprobe_opcode_t *)stack_addr, kcb->jprobes_stack, MIN_STACK_SIZE(stack_addr)); kcb->kprobe_status = KPROBE_HIT_SS; preempt_enable_no_resched(); return 1; } + return 0; } static struct kprobe trampoline_p = { - .addr = (kprobe_opcode_t *) &kretprobe_trampoline, + .addr = (kprobe_opcode_t *)&kretprobe_trampoline, .pre_handler = trampoline_probe_handler }; |