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[AVR32] Clean up exception handling code

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* 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>
This commit is contained in:
Haavard Skinnemoen
2007-03-13 17:59:11 +01:00
parent 3b328c9809
commit 623b0355d5
9 changed files with 403 additions and 418 deletions
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include/asm-avr32/processor.h
+3 -3
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@@ -134,10 +134,10 @@ extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
#define thread_saved_pc(tsk) ((tsk)->thread.cpu_context.pc)
struct pt_regs;
void show_trace(struct task_struct *task, unsigned long *stack,
struct pt_regs *regs);
extern unsigned long get_wchan(struct task_struct *p);
extern void show_regs_log_lvl(struct pt_regs *regs, const char *log_lvl);
extern void show_stack_log_lvl(struct task_struct *tsk, unsigned long sp,
struct pt_regs *regs, const char *log_lvl);
#define KSTK_EIP(tsk) ((tsk)->thread.cpu_context.pc)
#define KSTK_ESP(tsk) ((tsk)->thread.cpu_context.ksp)