[PATCH] ARM: showregs

Fix show_regs() to provide a backtrace.  Provide a new __show_regs()
function which implements the common subset of show_regs() and die().
Add prototypes to asm-arm/system.h

Signed-off-by: Russell King <rmk@arm.linux.org.uk>

1 files changed, 2 insertions, 6 deletions

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 93dc4646cd7f..6e31718f6008 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -31,9 +31,6 @@
 
 #include "ptrace.h"
 
-extern void c_backtrace (unsigned long fp, int pmode);
-extern void show_pte(struct mm_struct *mm, unsigned long addr);
-
 const char *processor_modes[]=
 { "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" ,
   "UK8_26" , "UK9_26" , "UK10_26", "UK11_26", "UK12_26", "UK13_26", "UK14_26", "UK15_26",
@@ -216,8 +213,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
 
         printk("Internal error: %s: %x [#%d]\n", str, err, ++die_counter);
         print_modules();
-        printk("CPU: %d\n", smp_processor_id());
-        show_regs(regs);
+        __show_regs(regs);
         printk("Process %s (pid: %d, stack limit = 0x%p)\n",
                 tsk->comm, tsk->pid, tsk->thread_info + 1);
 
@@ -482,7 +478,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
                        current->pid, current->comm, no);
                 dump_instr(regs);
                 if (user_mode(regs)) {
-                        show_regs(regs);
+                        __show_regs(regs);
                         c_backtrace(regs->ARM_fp, processor_mode(regs));
                 }
         }