diff options
| author | Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | 2011-03-16 19:04:38 -0400 |
|---|---|---|
| committer | Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> | 2011-03-16 19:04:38 -0400 |
| commit | aa619d07067ee4fe4891f166fe25adb0d3dfdb8d (patch) | |
| tree | a3267fab6589f44072214d0e8c5ee34db2529f09 /include/trace | |
| parent | 16fd1036d0559f80b8c726bac4a1dc4fe296141a (diff) | |
lttng-instrumentation/lttng-instrumentation-lockdep
LTTng instrumentation lockdep tracepoints
lockdep_hardirqs_off
lockdep_hardirqs_on
lockdep_lock_acquire
lockdep_lock_release
lockdep_softirqs_off
lockdep_softirqs_on
Update for 2.6.37 to remove dependency on immediate values and play nicely with
trace event lockdep instrumentation.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Diffstat (limited to 'include/trace')
| -rw-r--r-- | include/trace/lockdep.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/trace/lockdep.h b/include/trace/lockdep.h new file mode 100644 index 00000000000..dbd4629d0f8 --- /dev/null +++ b/include/trace/lockdep.h @@ -0,0 +1,37 @@ +#ifndef _LTTNG_TRACE_LOCKDEP_H +#define _LTTNG_TRACE_LOCKDEP_H + +#include <linux/lockdep.h> +#include <linux/tracepoint.h> + +/* + * lockdep tracing must be very careful with respect to reentrancy. + * + * It should not use immediate values for activation because it involves + * traps called when the code patching is done. + */ +DECLARE_TRACE(lockdep_hardirqs_on, + TP_PROTO(unsigned long retaddr), + TP_ARGS(retaddr)); +DECLARE_TRACE(lockdep_hardirqs_off, + TP_PROTO(unsigned long retaddr), + TP_ARGS(retaddr)); +DECLARE_TRACE(lockdep_softirqs_on, + TP_PROTO(unsigned long retaddr), + TP_ARGS(retaddr)); +DECLARE_TRACE(lockdep_softirqs_off, + TP_PROTO(unsigned long retaddr), + TP_ARGS(retaddr)); + +/* FIXME : some duplication with lockdep TRACE EVENTs */ +DECLARE_TRACE(lockdep_lock_acquire, + TP_PROTO(unsigned long retaddr, unsigned int subclass, + struct lockdep_map *lock, int trylock, int read, + int hardirqs_off), + TP_ARGS(retaddr, subclass, lock, trylock, read, hardirqs_off)); +DECLARE_TRACE(lockdep_lock_release, + TP_PROTO(unsigned long retaddr, struct lockdep_map *lock, int nested), + TP_ARGS(retaddr, lock, nested)); + + +#endif /* _LTTNG_TRACE_LOCKDEP_H */ |