diff options
Diffstat (limited to 'tapset/task.stp')
| -rw-r--r-- | tapset/task.stp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/tapset/task.stp b/tapset/task.stp new file mode 100644 index 00000000..cbf61f3a --- /dev/null +++ b/tapset/task.stp @@ -0,0 +1,156 @@ +// task information tapset +// Copyright (C) 2006 Intel Corporation. +// +// This file is part of systemtap, and is free software. You can +// redistribute it and/or modify it under the terms of the GNU General +// Public License (GPL); either version 2, or (at your option) any +// later version. + + +// Return the task_struct representing the current process +function task_current:long () %{ /* pure */ + THIS->__retvalue = (long)current; +%} + + +// Return the parent task_struct of the given task +function task_parent:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + THIS->__retvalue = deref(sizeof(t->parent), &(t->parent)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the state of the given task, one of: +// TASK_RUNNING 0 +// TASK_INTERRUPTIBLE 1 +// TASK_UNINTERRUPTIBLE 2 +// TASK_STOPPED 4 +// TASK_TRACED 8 +// EXIT_ZOMBIE 16 +// EXIT_DEAD 32 +function task_state:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + THIS->__retvalue = deref(sizeof(t->state), &(t->state)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the name of the given task +function task_execname:string (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + deref_string(THIS->__retvalue, t->comm, MAXSTRINGLEN); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the process id of the given task +function task_pid:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + THIS->__retvalue = deref(sizeof(t->tgid), &(t->tgid)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the thread id of the given task +function task_tid:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + THIS->__retvalue = deref(sizeof(t->pid), &(t->pid)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the group id of the given task +function task_gid:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + THIS->__retvalue = deref(sizeof(t->gid), &(t->gid)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the effective group id of the given task +function task_egid:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + THIS->__retvalue = deref(sizeof(t->egid), &(t->egid)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the user id of the given task +function task_uid:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + THIS->__retvalue = deref(sizeof(t->uid), &(t->uid)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the effective user id of the given task +function task_euid:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + THIS->__retvalue = deref(sizeof(t->euid), &(t->euid)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the priority value of the given task +function task_prio:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + int prio = deref(sizeof(t->prio), &(t->prio)); + THIS->__retvalue = prio - MAX_RT_PRIO; + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the nice value of the given task +function task_nice:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + int static_prio = deref(sizeof(t->static_prio), &(t->static_prio)); + THIS->__retvalue = static_prio - MAX_RT_PRIO - 20; + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} + + +// Return the scheduled cpu for the given task +function task_cpu:long (task:long) %{ /* pure */ + struct task_struct *t = (struct task_struct *)(long)THIS->task; + struct thread_info *ti = + (struct thread_info *)deref(sizeof(t->thread_info), &(t->thread_info)); + THIS->__retvalue = deref(sizeof(ti->cpu), &(ti->cpu)); + if (0) { +deref_fault: + CONTEXT->last_error = "pointer dereference fault"; + } +%} |