diff options
| author | Olaf Hering <olaf@aepfle.de> | 2006-09-08 16:29:21 +0200 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-09-13 18:39:53 +1000 |
| commit | 26c8af5f01dfb91f709cc2ba07fb650949aae13e (patch) | |
| tree | dbaa11641da7348bb2fbde3c75429449c7ca4104 /arch/powerpc/xmon/xmon.c | |
| parent | 87fd7724d4022913ae8dbee3ed55cd04f2c316a6 (diff) | |
| download | blackbird-op-linux-26c8af5f01dfb91f709cc2ba07fb650949aae13e.tar.gz blackbird-op-linux-26c8af5f01dfb91f709cc2ba07fb650949aae13e.zip | |
[POWERPC] print backtrace when entering xmon
xmon does not print a backtrace per default. This is bad on systems with
USB keyboard, the most needed info about the crash is lost.
print a backtrace during the very first xmon entry.
Booting with xmon=nobt disables the autobacktrace functionality.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/xmon/xmon.c')
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 179b10ced8c7..8adad1444a51 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -137,10 +137,14 @@ static void bootcmds(void); static void proccall(void); void dump_segments(void); static void symbol_lookup(void); +static void xmon_show_stack(unsigned long sp, unsigned long lr, + unsigned long pc); static void xmon_print_symbol(unsigned long address, const char *mid, const char *after); static const char *getvecname(unsigned long vec); +int xmon_no_auto_backtrace; + extern int print_insn_powerpc(unsigned long, unsigned long, int); extern void xmon_enter(void); @@ -736,6 +740,12 @@ cmds(struct pt_regs *excp) last_cmd = NULL; xmon_regs = excp; + + if (!xmon_no_auto_backtrace) { + xmon_no_auto_backtrace = 1; + xmon_show_stack(excp->gpr[1], excp->link, excp->nip); + } + for(;;) { #ifdef CONFIG_SMP printf("%x:", smp_processor_id()); |
