---

yaml --- r: 136932 b: refs/heads/master c: b180181 h: refs/heads/master v: v3
git-mirror · Feb 20, 2009 · 4017a61 · 4017a61
1 parent 83459ca
commit 4017a61
Show file tree

Hide file tree

Showing 3 changed files with 21 additions and 9 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b814d41f0987c7648d7ed07471258101c95c026b
+refs/heads/master: b18018126f422f5b706fd750373425e10e84b486
diff --git a/trunk/arch/x86/mm/fault.c b/trunk/arch/x86/mm/fault.c
@@ -68,21 +68,17 @@ static inline int kmmio_fault(struct pt_regs *regs, unsigned long addr)
 
 static inline int notify_page_fault(struct pt_regs *regs)
 {
-#ifdef CONFIG_KPROBES
 	int ret = 0;
 
 	/* kprobe_running() needs smp_processor_id() */
-	if (!user_mode_vm(regs)) {
+	if (kprobes_built_in() && !user_mode_vm(regs)) {
 		preempt_disable();
 		if (kprobe_running() && kprobe_fault_handler(regs, 14))
 			ret = 1;
 		preempt_enable();
 	}
 
 	return ret;
-#else
-	return 0;
-#endif
 }
 
 /*

diff --git a/trunk/include/linux/kprobes.h b/trunk/include/linux/kprobes.h
@@ -182,6 +182,14 @@ struct kprobe_blackpoint {
 DECLARE_PER_CPU(struct kprobe *, current_kprobe);
 DECLARE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
+/*
+ * For #ifdef avoidance:
+ */
+static inline int kprobes_built_in(void)
+{
+	return 1;
+}
+
 #ifdef CONFIG_KRETPROBES
 extern void arch_prepare_kretprobe(struct kretprobe_instance *ri,
 				   struct pt_regs *regs);
@@ -271,8 +279,16 @@ void unregister_kretprobes(struct kretprobe **rps, int num);
 void kprobe_flush_task(struct task_struct *tk);
 void recycle_rp_inst(struct kretprobe_instance *ri, struct hlist_head *head);
 
-#else /* CONFIG_KPROBES */
+#else /* !CONFIG_KPROBES: */
 
+static inline int kprobes_built_in(void)
+{
+	return 0;
+}
+static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
+{
+	return 0;
+}
 static inline struct kprobe *get_kprobe(void *addr)
 {
 	return NULL;
@@ -329,5 +345,5 @@ static inline void unregister_kretprobes(struct kretprobe **rps, int num)
 static inline void kprobe_flush_task(struct task_struct *tk)
 {
 }
-#endif				/* CONFIG_KPROBES */
-#endif				/* _LINUX_KPROBES_H */
+#endif /* CONFIG_KPROBES */
+#endif /* _LINUX_KPROBES_H */