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| author | Chris Metcalf <cmetcalf@tilera.com> | 2011-05-16 18:23:44 (GMT) |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2011-05-20 02:55:59 (GMT) |
| commit | 571d76acdab95876aeff869ab6449f826c23aa43 (patch) | |
| tree | b52ceacfa83b1ab4c5a6950007ce8be03cec192e /arch/tile/include/asm/signal.h | |
| parent | 8aaf1dda42576b0f8dffb004065baa806f4df9b6 (diff) | |
| download | linux-fsl-qoriq-571d76acdab95876aeff869ab6449f826c23aa43.tar.xz | |
arch/tile: support signal "exception-trace" hook
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>
Diffstat (limited to 'arch/tile/include/asm/signal.h')
| -rw-r--r-- | arch/tile/include/asm/signal.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/tile/include/asm/signal.h b/arch/tile/include/asm/signal.h index 81d92a4..1e1e616 100644 --- a/arch/tile/include/asm/signal.h +++ b/arch/tile/include/asm/signal.h @@ -28,6 +28,10 @@ struct pt_regs; int restore_sigcontext(struct pt_regs *, struct sigcontext __user *); int setup_sigcontext(struct sigcontext __user *, struct pt_regs *); void do_signal(struct pt_regs *regs); +void signal_fault(const char *type, struct pt_regs *, + void __user *frame, int sig); +void trace_unhandled_signal(const char *type, struct pt_regs *regs, + unsigned long address, int signo); #endif #endif /* _ASM_TILE_SIGNAL_H */ |