74 lines
3.0 KiB
Plaintext
74 lines
3.0 KiB
Plaintext
Systemtap is a dynamic tracing/instrumenting tool available on Linux. Probes
|
|
that are not fired at run time have close to zero overhead.
|
|
|
|
The following probes are available for NPTL:
|
|
|
|
Thread creation & Join Probes
|
|
=============================
|
|
pthread_create - probe for pthread_create
|
|
arg1 = pointer (pthread_t*) to thread
|
|
arg2 = pointer (pthread_attr_t*) to attr
|
|
arg3 = pointer (void *) to start_routine
|
|
arg4 = arguments to start_routine
|
|
pthread_start - probe for actual thread creation
|
|
arg1 = struct pthread (members include thread ID, process ID)
|
|
arg2 = address of start_routine
|
|
arg3 = pointer to the list of arguments
|
|
pthread_join - probe for pthread_join
|
|
arg1 = thread ID
|
|
pthread_join_ret - probe for pthread_join return
|
|
arg1 = thread ID
|
|
arg2 = return value
|
|
|
|
Lock-related Probes
|
|
===================
|
|
mutex_init - probe for pthread_mutex_init
|
|
arg1 = address of mutex lock
|
|
mutex_acquired - probe for succ. return of pthread_mutex_lock
|
|
arg1 = address of mutex lock
|
|
mutex_timedlock_acquired - probe for succ. return of pthread_mutex_timedlock
|
|
arg1 = address of mutex lock
|
|
mutex_entry - probe for entry to the pthread_mutex_lock function
|
|
arg1 = address of mutex lock
|
|
mutex_timedlock_entry - probe for entry to the pthread_mutex_timedlock function
|
|
arg1 = address of mutex lock, arg2 = address of timespec
|
|
mutex_release - probe for pthread_mutex_unlock after the successful release of a
|
|
mutex lock
|
|
arg1 = address of mutex lock
|
|
mutex_destroy - probe for pthread_mutex_destroy
|
|
arg1 = address of mutex lock
|
|
|
|
wrlock_entry - probe for entry to the pthread_rwlock_wrlock function
|
|
arg1 = address of rw lock
|
|
rdlock_entry - probe for entry to the pthread_rwlock_rdlock function
|
|
arg1 = address of rw lock
|
|
|
|
rwlock_destroy - probe for pthread_rwlock_destroy
|
|
arg1 = address of rw lock
|
|
wrlock_acquire_write - probe for pthread_rwlock_wrlock (after getting the lock)
|
|
arg1 = address of rw lock
|
|
rdlock_acquire_read - probe for pthread_rwlock_rdlock after successfully getting
|
|
the lock
|
|
arg1 = address of rw lock
|
|
rwlock_unlock - probe for pthread_rwlock_unlock
|
|
arg1 = address of rw lock
|
|
|
|
Condition variable Probes
|
|
=========================
|
|
cond_init - probe for pthread_cond_init
|
|
arg1 = condition
|
|
arg2 = attr
|
|
cond_destroy - probe for pthread_cond_destroy
|
|
arg1 = cond
|
|
cond_wait - probe for pthread_cond_wait
|
|
arg1 = condition
|
|
arg2 = mutex lock
|
|
cond_timedwait - probe for pthread_cond_timedwait
|
|
arg1 = condition
|
|
arg2 = mutex lock
|
|
arg3 = timespec
|
|
cond_signal - probe for pthread_cond_signal
|
|
arg1 = condition
|
|
cond_broadcast - probe for pthread_cond_broadcast
|
|
arg1 = condition
|