projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5acf7263 RM |
1 | Systemtap is a dynamic tracing/instrumenting tool available on Linux. Probes |
| 2 | that are not fired at run time have close to zero overhead. | |
| 3 | ||
| 4 | The following probes are available for NPTL: | |
| 5 | ||
| 6 | Thread creation & Join Probes | |
| 7 | ============================= | |
| 8 | pthread_create - probe for pthread_create | |
| 9 | arg1 = pointer (pthread_t*) to thread | |
| 10 | arg2 = pointer (pthread_attr_t*) to attr | |
| 11 | arg3 = pointer (void *) to start_routine | |
| 12 | arg4 = arguments to start_routine | |
| 13 | pthread_start - probe for actual thread creation | |
| 14 | arg1 = struct pthread (members include thread ID, process ID) | |
| 15 | arg2 = address of start_routine | |
| 16 | arg3 = pointer to the list of arguments | |
| 17 | pthread_join - probe for pthread_join | |
| 18 | arg1 = thread ID | |
| 19 | pthread_join_ret - probe for pthread_join return | |
| 20 | arg1 = thread ID | |
| 21 | arg2 = return value | |
| 22 | ||
| 23 | Lock-related Probes | |
| 24 | =================== | |
| 25 | mutex_init - probe for pthread_mutex_init | |
| 26 | arg1 = address of mutex lock | |
| 27 | mutex_acquired - probe for succ. return of pthread_mutex_lock | |
| 28 | arg1 = address of mutex lock | |
| 29 | mutex_timedlock_acquired - probe for succ. return of pthread_mutex_timedlock | |
| 30 | arg1 = address of mutex lock | |
| 31 | mutex_entry - probe for entry to the pthread_mutex_lock function | |
| 32 | arg1 = address of mutex lock | |
| 33 | mutex_timedlock_entry - probe for entry to the pthread_mutex_timedlock function | |
| 34 | arg1 = address of mutex lock, arg2 = address of timespec | |
| 9d20e22e MC |
35 | mutex_clocklock_entry - probe for entry to the pthread_mutex_clocklock function |
| 36 | arg1 = address of mutex lock, arg2 = clockid, | |
| 37 | arg3 = address of timespec | |
| 5acf7263 RM |
38 | mutex_release - probe for pthread_mutex_unlock after the successful release of a |
| 39 | mutex lock | |
| 40 | arg1 = address of mutex lock | |
| 41 | mutex_destroy - probe for pthread_mutex_destroy | |
| 42 | arg1 = address of mutex lock | |
| 43 | ||
| 44 | wrlock_entry - probe for entry to the pthread_rwlock_wrlock function | |
| 45 | arg1 = address of rw lock | |
| 46 | rdlock_entry - probe for entry to the pthread_rwlock_rdlock function | |
| 47 | arg1 = address of rw lock | |
| 48 | ||
| 49 | rwlock_destroy - probe for pthread_rwlock_destroy | |
| 50 | arg1 = address of rw lock | |
| 51 | wrlock_acquire_write - probe for pthread_rwlock_wrlock (after getting the lock) | |
| 52 | arg1 = address of rw lock | |
| 53 | rdlock_acquire_read - probe for pthread_rwlock_rdlock after successfully getting | |
| 54 | the lock | |
| 55 | arg1 = address of rw lock | |
| 56 | rwlock_unlock - probe for pthread_rwlock_unlock | |
| 57 | arg1 = address of rw lock | |
| 58 | ||
| 5acf7263 RM |
59 | Condition variable Probes |
| 60 | ========================= | |
| 61 | cond_init - probe for pthread_cond_init | |
| 62 | arg1 = condition | |
| 63 | arg2 = attr | |
| 64 | cond_destroy - probe for pthread_cond_destroy | |
| 65 | arg1 = cond | |
| 66 | cond_wait - probe for pthread_cond_wait | |
| 67 | arg1 = condition | |
| 68 | arg2 = mutex lock | |
| 69 | cond_timedwait - probe for pthread_cond_timedwait | |
| 70 | arg1 = condition | |
| 71 | arg2 = mutex lock | |
| 72 | arg3 = timespec | |
| 73 | cond_signal - probe for pthread_cond_signal | |
| 74 | arg1 = condition | |
| 75 | cond_broadcast - probe for pthread_cond_broadcast | |
| 76 | arg1 = condition |