X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Flinux%2Fkprobes.h;h=23adf6075ae435a1c421fe7991e30b2bd64ebc27;hb=bf8f6e5b3e51ee0c64c2d1350c70198ddc8ad3f7;hp=769be39b96810414ebdec4fec05d94e997eba5eb;hpb=2fd8507d14ef7af3ae05316b3277044cf6daa381;p=deliverable%2Flinux.git

diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 769be39b9681..23adf6075ae4 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -78,7 +78,7 @@ struct kprobe {
 	kprobe_opcode_t *addr;
 
 	/* Allow user to indicate symbol name of the probe point */
-	char *symbol_name;
+	const char *symbol_name;
 
 	/* Offset into the symbol */
 	unsigned int offset;
@@ -123,12 +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 -
@@ -157,6 +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);
@@ -199,8 +215,6 @@ 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, struct hlist_head *head);
 #else /* CONFIG_KPROBES */