| 1 | /* |
| 2 | * ltt/probes/lockdep-trace.c |
| 3 | * |
| 4 | * lockdep tracepoint probes. |
| 5 | * |
| 6 | * (C) Copyright 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> |
| 7 | * Dual LGPL v2.1/GPL v2 license. |
| 8 | */ |
| 9 | |
| 10 | #include <linux/module.h> |
| 11 | #include <linux/lockdep.h> |
| 12 | #include <trace/lockdep.h> |
| 13 | |
| 14 | void probe_lockdep_hardirqs_on(void *data, unsigned long retaddr) |
| 15 | { |
| 16 | trace_mark_tp(lockdep, hardirqs_on, lockdep_hardirqs_on, |
| 17 | probe_lockdep_hardirqs_on, "retaddr 0x%lX", retaddr); |
| 18 | } |
| 19 | |
| 20 | void probe_lockdep_hardirqs_off(void *data, unsigned long retaddr) |
| 21 | { |
| 22 | trace_mark_tp(lockdep, hardirqs_off, lockdep_hardirqs_off, |
| 23 | probe_lockdep_hardirqs_off, "retaddr 0x%lX", retaddr); |
| 24 | } |
| 25 | |
| 26 | void probe_lockdep_softirqs_on(void *data, unsigned long retaddr) |
| 27 | { |
| 28 | trace_mark_tp(lockdep, softirqs_on, lockdep_softirqs_on, |
| 29 | probe_lockdep_softirqs_on, "retaddr 0x%lX", retaddr); |
| 30 | } |
| 31 | |
| 32 | void probe_lockdep_softirqs_off(void *data, unsigned long retaddr) |
| 33 | { |
| 34 | trace_mark_tp(lockdep, softirqs_off, lockdep_softirqs_off, |
| 35 | probe_lockdep_softirqs_off, "retaddr 0x%lX", retaddr); |
| 36 | } |
| 37 | |
| 38 | void probe_lockdep_lock_acquire(void *data, unsigned long retaddr, |
| 39 | unsigned int subclass, struct lockdep_map *lock, int trylock, |
| 40 | int read, int hardirqs_off) |
| 41 | { |
| 42 | trace_mark_tp(lockdep, lock_acquire, lockdep_lock_acquire, |
| 43 | probe_lockdep_lock_acquire, |
| 44 | "retaddr 0x%lX subclass %u lock %p trylock %d read %d " |
| 45 | "hardirqs_off %d", |
| 46 | retaddr, subclass, lock, trylock, read, hardirqs_off); |
| 47 | } |
| 48 | |
| 49 | void probe_lockdep_lock_release(void *data, unsigned long retaddr, |
| 50 | struct lockdep_map *lock, int nested) |
| 51 | { |
| 52 | trace_mark_tp(lockdep, lock_release, lockdep_lock_release, |
| 53 | probe_lockdep_lock_release, |
| 54 | "retaddr 0x%lX lock %p nested %d", |
| 55 | retaddr, lock, nested); |
| 56 | } |
| 57 | |
| 58 | MODULE_LICENSE("GPL and additional rights"); |
| 59 | MODULE_AUTHOR("Mathieu Desnoyers"); |
| 60 | MODULE_DESCRIPTION("lockdep Tracepoint Probes"); |