X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=include%2Flinux%2Fkprobes.h;h=23adf6075ae435a1c421fe7991e30b2bd64ebc27;hb=4728d546d7137ad5350cc2e53d4748fd26f61a60;hp=8bf6702da2a0348e1ac3538ffba7f1954ceffc5b;hpb=52ab3f3dc711eeccbfbcc5d4f5c5d9b9ff59650f;p=powerpc.git

diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 8bf6702da2..23adf6075a 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -77,6 +77,12 @@ struct kprobe {
 	/* location of the probe point */
 	kprobe_opcode_t *addr;
 
+	/* Allow user to indicate symbol name of the probe point */
+	const char *symbol_name;
+
+	/* Offset into the symbol */
+	unsigned int offset;
+
 	/* Called before addr is executed. */
 	kprobe_pre_handler_t pre_handler;
 
@@ -117,12 +123,18 @@ DECLARE_PER_CPU(struct kprobe *, current_kprobe);
 DECLARE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
 #ifdef ARCH_SUPPORTS_KRETPROBES
-extern void arch_prepare_kretprobe(struct kretprobe *rp, struct pt_regs *regs);
+extern void arch_prepare_kretprobe(struct kretprobe_instance *ri,
+				   struct pt_regs *regs);
+extern int arch_trampoline_kprobe(struct kprobe *p);
 #else /* ARCH_SUPPORTS_KRETPROBES */
 static inline void arch_prepare_kretprobe(struct kretprobe *rp,
 					struct pt_regs *regs)
 {
 }
+static inline int arch_trampoline_kprobe(struct kprobe *p)
+{
+	return 0;
+}
 #endif /* ARCH_SUPPORTS_KRETPROBES */
 /*
  * Function-return probe -
@@ -151,6 +163,16 @@ struct kretprobe_instance {
 	struct task_struct *task;
 };
 
+static inline void kretprobe_assert(struct kretprobe_instance *ri,
+	unsigned long orig_ret_address, unsigned long trampoline_address)
+{
+	if (!orig_ret_address || (orig_ret_address == trampoline_address)) {
+		printk("kretprobe BUG!: Processing kretprobe %p @ %p\n",
+				ri->rp, ri->rp->kp.addr);
+		BUG();
+	}
+}
+
 extern spinlock_t kretprobe_lock;
 extern struct mutex kprobe_mutex;
 extern int arch_prepare_kprobe(struct kprobe *p);
@@ -159,7 +181,7 @@ extern void arch_disarm_kprobe(struct kprobe *p);
 extern int arch_init_kprobes(void);
 extern void show_registers(struct pt_regs *regs);
 extern kprobe_opcode_t *get_insn_slot(void);
-extern void free_insn_slot(kprobe_opcode_t *slot);
+extern void free_insn_slot(kprobe_opcode_t *slot, int dirty);
 extern void kprobes_inc_nmissed_count(struct kprobe *p);
 
 /* Get the kprobe at this addr (if any) - called with preemption disabled */
@@ -193,10 +215,8 @@ void jprobe_return(void);
 int register_kretprobe(struct kretprobe *rp);
 void unregister_kretprobe(struct kretprobe *rp);
 
-struct kretprobe_instance *get_free_rp_inst(struct kretprobe *rp);
-void add_rp_inst(struct kretprobe_instance *ri);
 void kprobe_flush_task(struct task_struct *tk);
-void recycle_rp_inst(struct kretprobe_instance *ri);
+void recycle_rp_inst(struct kretprobe_instance *ri, struct hlist_head *head);
 #else /* CONFIG_KPROBES */
 
 #define __kprobes	/**/