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2009-08-15sh: stacktrace: Properly terminate the trace entry buffer.Paul Mundt1-0/+4
This inserts a ULONG_MAX entry at the end of the valid entries in the stack trace buffer so the default code doesn't need to scan to the end of available slots. This also makes the trace buffer termination behaviour consistent with the other architectures. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-15sh: stacktrace: Add reliability checks in address saving ops.Paul Mundt1-0/+6
This adopts the reliability checks from the x86 stacktrace code so known bad addresses are not recorded in the stack trace buffer. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-13sh: Use the new stack unwinder APIMatt Fleming1-2/+3
Instead of implementing our own stack unwinder via dump_trace() we should use the new stack unwinder API because it is more modular. This change allows us to decouple the interface for generating stacktraces from the implementation of a stack unwinder. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-13sh: Use the generalized stacktrace opsMatt Fleming1-26/+61
Copy the stacktrace ops code from x86 and provide a central function for use by functions that need to dump a callstack. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-09-13sh: latencytop support.Paul Mundt1-1/+22
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-07-18fix core/stacktrace changes on avr32, mips, shHeiko Carstens1-0/+1
Fixes this type of problem: CC arch/s390/kernel/stacktrace.o arch/s390/kernel/stacktrace.c:84: warning: data definition has no type or storage class arch/s390/kernel/stacktrace.c:84: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/s390/kernel/stacktrace.c:84: warning: parameter names (without types) in function declaration arch/s390/kernel/stacktrace.c:97: warning: data definition has no type or storage class arch/s390/kernel/stacktrace.c:97: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/s390/kernel/stacktrace.c:97: warning: parameter names (without types) in function declaration caused by "stacktrace: export save_stack_trace[_tsk]" Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-03stacktrace: export save_stack_trace[_tsk]Ingo Molnar1-0/+1
Andrew Morton reported this against linux-next: ERROR: ".save_stack_trace" [tests/backtracetest.ko] undefined! Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-05-09sh: Fix stacktrace simplification fallout.Paul Mundt1-1/+1
When the stacktrace simplification changes went in the function definition on SH got skipped, fix it up so things build again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-08simplify the stacktrace codeChristoph Hellwig1-8/+1
Simplify the stacktrace code: - remove the unused task argument to save_stack_trace, it's always current - remove the all_contexts flag, it's alwasy 0 Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Andi Kleen <ak@suse.de> Cc: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-12-06sh: stacktrace/lockdep/irqflags tracing support.Paul Mundt1-0/+43
Wire up all of the essentials for lockdep.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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