linux/arch/x86/include/asm/kdebug.h
Jan Beulich 57da8b960b x86: Avoid double stack traces with show_regs()
What was called show_registers() so far already showed a stack
trace for kernel faults, and kernel_stack_pointer() isn't even
valid to be used for faults from user mode, hence it was
pointless for show_regs() to call show_trace() after
show_registers().

Simply rename show_registers() to show_regs() and eliminate
the old definition.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/4FAA3D3902000078000826E1@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-05-09 11:44:42 +02:00

40 lines
951 B
C

#ifndef _ASM_X86_KDEBUG_H
#define _ASM_X86_KDEBUG_H
#include <linux/notifier.h>
struct pt_regs;
/* Grossly misnamed. */
enum die_val {
DIE_OOPS = 1,
DIE_INT3,
DIE_DEBUG,
DIE_PANIC,
DIE_NMI,
DIE_DIE,
DIE_KERNELDEBUG,
DIE_TRAP,
DIE_GPF,
DIE_CALL,
DIE_PAGE_FAULT,
DIE_NMIUNKNOWN,
};
extern void printk_address(unsigned long address, int reliable);
extern void die(const char *, struct pt_regs *,long);
extern int __must_check __die(const char *, struct pt_regs *, long);
extern void show_trace(struct task_struct *t, struct pt_regs *regs,
unsigned long *sp, unsigned long bp);
extern void __show_regs(struct pt_regs *regs, int all);
extern unsigned long oops_begin(void);
extern void oops_end(unsigned long, struct pt_regs *, int signr);
#ifdef CONFIG_KEXEC
extern int in_crash_kexec;
#else
/* no crash dump is ever in progress if no crash kernel can be kexec'd */
#define in_crash_kexec 0
#endif
#endif /* _ASM_X86_KDEBUG_H */