[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, 11 insertions, 4 deletions

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index dbd8ca89b385..26eacd3e5def 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -168,12 +168,11 @@ void machine_restart(char * __unused)
 
 EXPORT_SYMBOL(machine_restart);
 
-void show_regs(struct pt_regs * regs)
+void __show_regs(struct pt_regs *regs)
 {
-        unsigned long flags;
-
-        flags = condition_codes(regs);
+        unsigned long flags = condition_codes(regs);
 
+        printk("CPU: %d\n", smp_processor_id());
         print_symbol("PC is at %s\n", instruction_pointer(regs));
         print_symbol("LR is at %s\n", regs->ARM_lr);
         printk("pc : [<%08lx>]    lr : [<%08lx>]    %s\n"
@@ -213,6 +212,14 @@ void show_regs(struct pt_regs * regs)
         }
 }
 
+void show_regs(struct pt_regs * regs)
+{
+        printk("\n");
+        printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
+        __show_regs(regs);
+        __backtrace();
+}
+
 void show_fpregs(struct user_fp *regs)
 {
         int i;