571d76acda
This change adds support for /proc/sys/debug/exception-trace to tile. Like x86 and sparc, by default it is set to "1", generating a one-line printk whenever a user process crashes. By setting it to "2", we get a much more complete userspace diagnostic at crash time, including a user-space backtrace, register dump, and memory dump around the address of the crash. Some vestiges of the Tilera-internal version of this support are removed with this patch (the show_crashinfo variable and the arch_coredump_signal function). We retain a "crashinfo" boot parameter which allows you to set the boot-time value of exception-trace. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/*
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* Copyright 2010 Tilera Corporation. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation, version 2.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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* NON INFRINGEMENT. See the GNU General Public License for
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* more details.
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*/
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#ifndef _ASM_TILE_SIGNAL_H
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#define _ASM_TILE_SIGNAL_H
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/* Do not notify a ptracer when this signal is handled. */
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#define SA_NOPTRACE 0x02000000u
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/* Used in earlier Tilera releases, so keeping for binary compatibility. */
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#define SA_RESTORER 0x04000000u
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#include <asm-generic/signal.h>
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#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
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struct pt_regs;
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int restore_sigcontext(struct pt_regs *, struct sigcontext __user *);
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int setup_sigcontext(struct sigcontext __user *, struct pt_regs *);
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void do_signal(struct pt_regs *regs);
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void signal_fault(const char *type, struct pt_regs *,
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void __user *frame, int sig);
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void trace_unhandled_signal(const char *type, struct pt_regs *regs,
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unsigned long address, int signo);
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#endif
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#endif /* _ASM_TILE_SIGNAL_H */
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