Revert "[POWERPC] Add compat handler for PTRACE_GETSIGINFO"

[linux-2.6-omap-h63xx.git] / arch / powerpc / kernel / kprobes.c

diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 0c96611f02f4852600711f416c5d9d8b6f036b85..c176c513566b3c1a179661bae346142fa5cd4bd0 100644 (file)
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -38,6 +38,8 @@
 DEFINE_PER_CPU(struct kprobe *, current_kprobe) = NULL;
 DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
 
+struct kretprobe_blackpoint kretprobe_blacklist[] = {{NULL, NULL}};
+
 int __kprobes arch_prepare_kprobe(struct kprobe *p)
 {
        int ret = 0;
@@ -272,7 +274,7 @@ no_kprobe:
  *     - When the probed function returns, this probe
  *             causes the handlers to fire
  */
-void kretprobe_trampoline_holder(void)
+static void __used kretprobe_trampoline_holder(void)
 {
        asm volatile(".global kretprobe_trampoline\n"
                        "kretprobe_trampoline:\n"
@@ -282,7 +284,8 @@ void kretprobe_trampoline_holder(void)
 /*
  * Called when the probe at kretprobe trampoline is hit
  */
-int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
+static int __kprobes trampoline_probe_handler(struct kprobe *p,
+                                               struct pt_regs *regs)
 {
        struct kretprobe_instance *ri = NULL;
        struct hlist_head *head, empty_rp;
@@ -492,6 +495,13 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
        return ret;
 }
 
+#ifdef CONFIG_PPC64
+unsigned long arch_deref_entry_point(void *entry)
+{
+       return (unsigned long)(((func_descr_t *)entry)->entry);
+}
+#endif
+
 int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 {
        struct jprobe *jp = container_of(p, struct jprobe, kp);
@@ -500,22 +510,20 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
        memcpy(&kcb->jprobe_saved_regs, regs, sizeof(struct pt_regs));
 
        /* setup return addr to the jprobe handler routine */
+       regs->nip = arch_deref_entry_point(jp->entry);
 #ifdef CONFIG_PPC64
-       regs->nip = (unsigned long)(((func_descr_t *)jp->entry)->entry);
        regs->gpr[2] = (unsigned long)(((func_descr_t *)jp->entry)->toc);
-#else
-       regs->nip = (unsigned long)jp->entry;
 #endif
 
        return 1;
 }
 
-void __kprobes jprobe_return(void)
+void __used __kprobes jprobe_return(void)
 {
        asm volatile("trap" ::: "memory");
 }
 
-void __kprobes jprobe_return_end(void)
+static void __used __kprobes jprobe_return_end(void)
 {
 };