| 1 | /* |
| 2 | * ltt-facility-loader-tests.c |
| 3 | * |
| 4 | * (C) Copyright 2005 - |
| 5 | * Mathieu Desnoyers (mathieu.desnoyers@polymtl.ca) |
| 6 | * |
| 7 | * Contains the LTT facility loader. |
| 8 | * |
| 9 | */ |
| 10 | |
| 11 | |
| 12 | #include <linux/ltt-facilities.h> |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/init.h> |
| 15 | #include "ltt-facility-loader-tests.h" |
| 16 | |
| 17 | |
| 18 | #ifdef CONFIG_LTT |
| 19 | |
| 20 | EXPORT_SYMBOL(LTT_FACILITY_SYMBOL); |
| 21 | EXPORT_SYMBOL(LTT_FACILITY_CHECKSUM_SYMBOL); |
| 22 | |
| 23 | static const char ltt_facility_name[] = LTT_FACILITY_NAME; |
| 24 | |
| 25 | #define SYMBOL_STRING(sym) #sym |
| 26 | |
| 27 | static struct ltt_facility facility = { |
| 28 | .name = ltt_facility_name, |
| 29 | .num_events = LTT_FACILITY_NUM_EVENTS, |
| 30 | .checksum = LTT_FACILITY_CHECKSUM, |
| 31 | .symbol = SYMBOL_STRING(LTT_FACILITY_SYMBOL), |
| 32 | }; |
| 33 | |
| 34 | static int __init facility_init(void) |
| 35 | { |
| 36 | printk(KERN_INFO "LTT : ltt-facility-tests init in kernel\n"); |
| 37 | |
| 38 | LTT_FACILITY_SYMBOL = ltt_facility_kernel_register(&facility); |
| 39 | LTT_FACILITY_CHECKSUM_SYMBOL = LTT_FACILITY_SYMBOL; |
| 40 | |
| 41 | return LTT_FACILITY_SYMBOL; |
| 42 | } |
| 43 | |
| 44 | #ifndef MODULE |
| 45 | __initcall(facility_init); |
| 46 | #else |
| 47 | module_init(facility_init); |
| 48 | static void __exit facility_exit(void) |
| 49 | { |
| 50 | int err; |
| 51 | |
| 52 | err = ltt_facility_unregister(LTT_FACILITY_SYMBOL); |
| 53 | if (err != 0) |
| 54 | printk(KERN_ERR "LTT : Error in unregistering facility.\n"); |
| 55 | |
| 56 | } |
| 57 | module_exit(facility_exit) |
| 58 | |
| 59 | MODULE_LICENSE("GPL"); |
| 60 | MODULE_AUTHOR("Mathieu Desnoyers"); |
| 61 | MODULE_DESCRIPTION("Linux Trace Toolkit Facility"); |
| 62 | |
| 63 | #endif //MODULE |
| 64 | |
| 65 | #endif //CONFIG_LTT |