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4 Commits

Author SHA1 Message Date
Ralf Baechle a204458acb [MIPS] unwind_stack should return a value ... 
And gcc 3.4 doesn't even warn out this, grrr.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2007-08-27 02:16:55 +01:00
Ralf Baechle de4b214740 [MIPS] Fix build error if CONFIG_KALLSYMS is undefined. 
CC      arch/mips/kernel/traps.o
arch/mips/kernel/traps.c: In function 'show_backtrace':
arch/mips/kernel/traps.c:110: warning: unused variable 'ra'

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2007-08-27 02:16:55 +01:00
Atsushi Nemoto 1924600cdb [MIPS] Make unwind_stack() can dig into interrupted context 
If the PC was ret_from_irq or ret_from_exception, there will be no
more normal stackframe.  Instead of stopping the unwinding, use PC and
RA saved by an exception handler to continue unwinding into the
interrupted context.  This also simplifies the CONFIG_STACKTRACE code.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2006-10-01 23:16:59 +01:00
Atsushi Nemoto 1df0f0ff7e [MIPS] lockdep: Add STACKTRACE_SUPPORT and enable LOCKDEP_SUPPORT 
Implement stacktrace interface by using unwind_stack() and enable lockdep
support in Kconfig.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2006-10-01 23:16:57 +01:00