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Diffstat (limited to 'arch/ppc64/kernel/kprobes.c')
-rw-r--r--arch/ppc64/kernel/kprobes.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/arch/ppc64/kernel/kprobes.c b/arch/ppc64/kernel/kprobes.c
index a3d519518fb8..591e4b67b5a5 100644
--- a/arch/ppc64/kernel/kprobes.c
+++ b/arch/ppc64/kernel/kprobes.c
@@ -44,7 +44,7 @@ static struct kprobe *kprobe_prev;
44static unsigned long kprobe_status_prev, kprobe_saved_msr_prev; 44static unsigned long kprobe_status_prev, kprobe_saved_msr_prev;
45static struct pt_regs jprobe_saved_regs; 45static struct pt_regs jprobe_saved_regs;
46 46
47int arch_prepare_kprobe(struct kprobe *p) 47int __kprobes arch_prepare_kprobe(struct kprobe *p)
48{ 48{
49 int ret = 0; 49 int ret = 0;
50 kprobe_opcode_t insn = *p->addr; 50 kprobe_opcode_t insn = *p->addr;
@@ -68,27 +68,27 @@ int arch_prepare_kprobe(struct kprobe *p)
68 return ret; 68 return ret;
69} 69}
70 70
71void arch_copy_kprobe(struct kprobe *p) 71void __kprobes arch_copy_kprobe(struct kprobe *p)
72{ 72{
73 memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t)); 73 memcpy(p->ainsn.insn, p->addr, MAX_INSN_SIZE * sizeof(kprobe_opcode_t));
74 p->opcode = *p->addr; 74 p->opcode = *p->addr;
75} 75}
76 76
77void arch_arm_kprobe(struct kprobe *p) 77void __kprobes arch_arm_kprobe(struct kprobe *p)
78{ 78{
79 *p->addr = BREAKPOINT_INSTRUCTION; 79 *p->addr = BREAKPOINT_INSTRUCTION;
80 flush_icache_range((unsigned long) p->addr, 80 flush_icache_range((unsigned long) p->addr,
81 (unsigned long) p->addr + sizeof(kprobe_opcode_t)); 81 (unsigned long) p->addr + sizeof(kprobe_opcode_t));
82} 82}
83 83
84void arch_disarm_kprobe(struct kprobe *p) 84void __kprobes arch_disarm_kprobe(struct kprobe *p)
85{ 85{
86 *p->addr = p->opcode; 86 *p->addr = p->opcode;
87 flush_icache_range((unsigned long) p->addr, 87 flush_icache_range((unsigned long) p->addr,
88 (unsigned long) p->addr + sizeof(kprobe_opcode_t)); 88 (unsigned long) p->addr + sizeof(kprobe_opcode_t));
89} 89}
90 90
91void arch_remove_kprobe(struct kprobe *p) 91void __kprobes arch_remove_kprobe(struct kprobe *p)
92{ 92{
93 up(&kprobe_mutex); 93 up(&kprobe_mutex);
94 free_insn_slot(p->ainsn.insn); 94 free_insn_slot(p->ainsn.insn);
@@ -122,7 +122,8 @@ static inline void restore_previous_kprobe(void)
122 kprobe_saved_msr = kprobe_saved_msr_prev; 122 kprobe_saved_msr = kprobe_saved_msr_prev;
123} 123}
124 124
125void arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs) 125void __kprobes arch_prepare_kretprobe(struct kretprobe *rp,
126 struct pt_regs *regs)
126{ 127{
127 struct kretprobe_instance *ri; 128 struct kretprobe_instance *ri;
128 129
@@ -244,7 +245,7 @@ void kretprobe_trampoline_holder(void)
244/* 245/*
245 * Called when the probe at kretprobe trampoline is hit 246 * Called when the probe at kretprobe trampoline is hit
246 */ 247 */
247int trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) 248int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
248{ 249{
249 struct kretprobe_instance *ri = NULL; 250 struct kretprobe_instance *ri = NULL;
250 struct hlist_head *head; 251 struct hlist_head *head;
@@ -308,7 +309,7 @@ int trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
308 * single-stepped a copy of the instruction. The address of this 309 * single-stepped a copy of the instruction. The address of this
309 * copy is p->ainsn.insn. 310 * copy is p->ainsn.insn.
310 */ 311 */
311static void resume_execution(struct kprobe *p, struct pt_regs *regs) 312static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
312{ 313{
313 int ret; 314 int ret;
314 unsigned int insn = *p->ainsn.insn; 315 unsigned int insn = *p->ainsn.insn;
@@ -373,8 +374,8 @@ static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
373/* 374/*
374 * Wrapper routine to for handling exceptions. 375 * Wrapper routine to for handling exceptions.
375 */ 376 */
376int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, 377int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
377 void *data) 378 unsigned long val, void *data)
378{ 379{
379 struct die_args *args = (struct die_args *)data; 380 struct die_args *args = (struct die_args *)data;
380 int ret = NOTIFY_DONE; 381 int ret = NOTIFY_DONE;
@@ -406,7 +407,7 @@ int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val,
406 return ret; 407 return ret;
407} 408}
408 409
409int setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) 410int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
410{ 411{
411 struct jprobe *jp = container_of(p, struct jprobe, kp); 412 struct jprobe *jp = container_of(p, struct jprobe, kp);
412 413
@@ -419,16 +420,16 @@ int setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
419 return 1; 420 return 1;
420} 421}
421 422
422void jprobe_return(void) 423void __kprobes jprobe_return(void)
423{ 424{
424 asm volatile("trap" ::: "memory"); 425 asm volatile("trap" ::: "memory");
425} 426}
426 427
427void jprobe_return_end(void) 428void __kprobes jprobe_return_end(void)
428{ 429{
429}; 430};
430 431
431int longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) 432int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
432{ 433{
433 /* 434 /*
434 * FIXME - we should ideally be validating that we got here 'cos 435 * FIXME - we should ideally be validating that we got here 'cos