[AVR32] Clean up exception handling code

  * Use generic BUG() handling
  * Remove some useless debug statements
  * Use a common function _exception() to send signals or oops when
    an exception can't be handled. This makes sure init doesn't
    enter an infinite exception loop as well. Borrowed from powerpc.
  * Add some basic exception tracing support to the page fault code.
  * Rework dump_stack(), show_regs() and friends and move everything
    into process.c
  * Print information about configuration options and chip type when
    oopsing

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

1 files changed, 4 insertions, 9 deletions

diff --git a/include/asm-avr32/system.h b/include/asm-avr32/system.h
index ac596058697d..a8236bacc878 100644
--- a/include/asm-avr32/system.h
+++ b/include/asm-avr32/system.h
@@ -9,6 +9,7 @@
 #define __ASM_AVR32_SYSTEM_H
 
 #include <linux/compiler.h>
+#include <linux/linkage.h>
 #include <linux/types.h>
 
 #include <asm/ptrace.h>
@@ -140,15 +141,9 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
                                    sizeof(*(ptr))))
 
 struct pt_regs;
-extern void __die(const char *, struct pt_regs *, unsigned long,
-                  const char *, const char *, unsigned long);
-extern void __die_if_kernel(const char *, struct pt_regs *, unsigned long,
-                            const char *, const char *, unsigned long);
-
-#define die(msg, regs, err)                                     \
-        __die(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__)
-#define die_if_kernel(msg, regs, err)                                   \
-        __die_if_kernel(msg, regs, err, __FILE__ ":", __FUNCTION__, __LINE__)
+void NORET_TYPE die(const char *str, struct pt_regs *regs, long err);
+void _exception(long signr, struct pt_regs *regs, int code,
+                unsigned long addr);
 
 #define arch_align_stack(x)     (x)