diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/mips/kernel/kprobes.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/arch/mips/kernel/kprobes.c b/arch/mips/kernel/kprobes.c index 6c7f3b143fdc..316b27d0d2fb 100644 --- a/arch/mips/kernel/kprobes.c +++ b/arch/mips/kernel/kprobes.c @@ -44,10 +44,11 @@ static const union mips_instruction breakpoint2_insn = { DEFINE_PER_CPU(struct kprobe *, current_kprobe); DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); -static int __kprobes insn_has_delayslot(union mips_instruction insn) +static int insn_has_delayslot(union mips_instruction insn) { return __insn_has_delay_slot(insn); } +NOKPROBE_SYMBOL(insn_has_delayslot); /* * insn_has_ll_or_sc function checks whether instruction is ll or sc @@ -56,7 +57,7 @@ static int __kprobes insn_has_delayslot(union mips_instruction insn) * instructions; cannot do much about breakpoint in the middle of * ll/sc pair; it is upto user to avoid those places */ -static int __kprobes insn_has_ll_or_sc(union mips_instruction insn) +static int insn_has_ll_or_sc(union mips_instruction insn) { int ret = 0; @@ -72,8 +73,9 @@ static int __kprobes insn_has_ll_or_sc(union mips_instruction insn) } return ret; } +NOKPROBE_SYMBOL(insn_has_ll_or_sc); -int __kprobes arch_prepare_kprobe(struct kprobe *p) +int arch_prepare_kprobe(struct kprobe *p) { union mips_instruction insn; union mips_instruction prev_insn; @@ -132,26 +134,30 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) out: return ret; } +NOKPROBE_SYMBOL(arch_prepare_kprobe); -void __kprobes arch_arm_kprobe(struct kprobe *p) +void arch_arm_kprobe(struct kprobe *p) { *p->addr = breakpoint_insn; flush_insn_slot(p); } +NOKPROBE_SYMBOL(arch_arm_kprobe); -void __kprobes arch_disarm_kprobe(struct kprobe *p) +void arch_disarm_kprobe(struct kprobe *p) { *p->addr = p->opcode; flush_insn_slot(p); } +NOKPROBE_SYMBOL(arch_disarm_kprobe); -void __kprobes arch_remove_kprobe(struct kprobe *p) +void arch_remove_kprobe(struct kprobe *p) { if (p->ainsn.insn) { free_insn_slot(p->ainsn.insn, 0); p->ainsn.insn = NULL; } } +NOKPROBE_SYMBOL(arch_remove_kprobe); static void save_previous_kprobe(struct kprobe_ctlblk *kcb) { @@ -257,7 +263,7 @@ static void prepare_singlestep(struct kprobe *p, struct pt_regs *regs, * breakpoint trap. In case of branch instructions, the target * epc to be restored. */ -static void __kprobes resume_execution(struct kprobe *p, +static void resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb) { @@ -268,8 +274,9 @@ static void __kprobes resume_execution(struct kprobe *p, regs->cp0_epc = orig_epc + 4; } } +NOKPROBE_SYMBOL(resume_execution); -static int __kprobes kprobe_handler(struct pt_regs *regs) +static int kprobe_handler(struct pt_regs *regs) { struct kprobe *p; int ret = 0; @@ -367,6 +374,7 @@ no_kprobe: return ret; } +NOKPROBE_SYMBOL(kprobe_handler); static inline int post_kprobe_handler(struct pt_regs *regs) { @@ -415,7 +423,7 @@ int kprobe_fault_handler(struct pt_regs *regs, int trapnr) /* * Wrapper routine for handling exceptions. */ -int __kprobes kprobe_exceptions_notify(struct notifier_block *self, +int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *data) { @@ -446,6 +454,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, } return ret; } +NOKPROBE_SYMBOL(kprobe_exceptions_notify); /* * Function return probe trampoline: @@ -469,7 +478,7 @@ static void __used kretprobe_trampoline_holder(void) void __kretprobe_trampoline(void); -void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, +void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs) { ri->ret_addr = (kprobe_opcode_t *) regs->regs[31]; @@ -478,11 +487,12 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, /* Replace the return addr with trampoline addr */ regs->regs[31] = (unsigned long)__kretprobe_trampoline; } +NOKPROBE_SYMBOL(arch_prepare_kretprobe); /* * Called when the probe at kretprobe trampoline is hit */ -static int __kprobes trampoline_probe_handler(struct kprobe *p, +static int trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) { instruction_pointer(regs) = __kretprobe_trampoline_handler(regs, NULL); @@ -493,14 +503,16 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p, */ return 1; } +NOKPROBE_SYMBOL(trampoline_probe_handler); -int __kprobes arch_trampoline_kprobe(struct kprobe *p) +int arch_trampoline_kprobe(struct kprobe *p) { if (p->addr == (kprobe_opcode_t *)__kretprobe_trampoline) return 1; return 0; } +NOKPROBE_SYMBOL(arch_trampoline_kprobe); static struct kprobe trampoline_p = { .addr = (kprobe_opcode_t *)__kretprobe_trampoline, |