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aa49f20462
Split __die() into __die_header() and __die_body(). This allows inserting extra information below the header line that initiates the bug report. Introduce a new function die_addr() that behaves like die(), but is for faults only and uses __die_header() and __die_body() so that a future commit can print extra information after the header line. [ bp: Comment the KASAN-specific usage of gp_addr. ] Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: kasan-dev@googlegroups.com Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org> Cc: Sean Christopherson <sean.j.christopherson@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: x86-ml <x86@kernel.org> Link: https://lkml.kernel.org/r/20191218231150.12139-3-jannh@google.com
45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_KDEBUG_H
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#define _ASM_X86_KDEBUG_H
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#include <linux/notifier.h>
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struct pt_regs;
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/* Grossly misnamed. */
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enum die_val {
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DIE_OOPS = 1,
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DIE_INT3,
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DIE_DEBUG,
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DIE_PANIC,
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DIE_NMI,
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DIE_DIE,
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DIE_KERNELDEBUG,
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DIE_TRAP,
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DIE_GPF,
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DIE_CALL,
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DIE_PAGE_FAULT,
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DIE_NMIUNKNOWN,
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};
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enum show_regs_mode {
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SHOW_REGS_SHORT,
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/*
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* For when userspace crashed, but we don't think it's our fault, and
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* therefore don't print kernel registers.
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*/
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SHOW_REGS_USER,
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SHOW_REGS_ALL
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};
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extern void die(const char *, struct pt_regs *,long);
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void die_addr(const char *str, struct pt_regs *regs, long err, long gp_addr);
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extern int __must_check __die(const char *, struct pt_regs *, long);
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extern void show_stack_regs(struct pt_regs *regs);
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extern void __show_regs(struct pt_regs *regs, enum show_regs_mode);
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extern void show_iret_regs(struct pt_regs *regs);
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extern unsigned long oops_begin(void);
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extern void oops_end(unsigned long, struct pt_regs *, int signr);
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#endif /* _ASM_X86_KDEBUG_H */
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