[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>

include/asm-arm/ptrace.h

@@ -142,11 +142,8 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 #endif
 
 #ifdef __KERNEL__
-extern void show_regs(struct pt_regs *);
-
-#define predicate(x)	(x & 0xf0000000)
+#define predicate(x)		((x) & 0xf0000000)
 #define PREDICATE_ALWAYS	0xe0000000
-
 #endif
 
 #endif /* __ASSEMBLY__ */

include/asm-arm/system.h

@@ -99,6 +99,9 @@ void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
 #define tas(ptr) (xchg((ptr),1))
 
 extern asmlinkage void __backtrace(void);
+extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
+extern void show_pte(struct mm_struct *mm, unsigned long addr);
+extern void __show_regs(struct pt_regs *);
 
 extern int cpu_architecture(void);