Signed-off-by: Mathieu Desnoyers --- samples/markers/Makefile | 2 samples/markers/test-multi.c | 116 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 117 insertions(+), 1 deletion(-) Index: linux-2.6-lttng/samples/markers/Makefile =================================================================== --- linux-2.6-lttng.orig/samples/markers/Makefile 2009-01-09 18:15:52.000000000 -0500 +++ linux-2.6-lttng/samples/markers/Makefile 2009-01-09 18:17:56.000000000 -0500 @@ -1,4 +1,4 @@ # builds the kprobes example kernel modules; # then to use one (as root): insmod -obj-$(CONFIG_SAMPLE_MARKERS) += probe-example.o marker-example.o +obj-$(CONFIG_SAMPLE_MARKERS) += probe-example.o marker-example.o test-multi.o Index: linux-2.6-lttng/samples/markers/test-multi.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ linux-2.6-lttng/samples/markers/test-multi.c 2009-01-09 18:17:56.000000000 -0500 @@ -0,0 +1,116 @@ +/* test-multi.c + * + * Connects multiple callbacks. + * + * (C) Copyright 2007 Mathieu Desnoyers + * + * This file is released under the GPLv2. + * See the file COPYING for more details. + */ + +#include +#include +#include +#include +#include + +struct probe_data { + const char *name; + const char *format; + marker_probe_func *probe_func; +}; + +atomic_t eventb_count = ATOMIC_INIT(0); + +void probe_subsystem_eventa(void *probe_data, void *call_data, + const char *format, va_list *args) +{ + /* Increment counter */ + atomic_inc(&eventb_count); +} + +void probe_subsystem_eventb(void *probe_data, void *call_data, + const char *format, va_list *args) +{ + /* Increment counter */ + atomic_inc(&eventb_count); +} + +void probe_subsystem_eventc(void *probe_data, void *call_data, + const char *format, va_list *args) +{ + /* Increment counter */ + atomic_inc(&eventb_count); +} + +void probe_subsystem_eventd(void *probe_data, void *call_data, + const char *format, va_list *args) +{ + /* Increment counter */ + atomic_inc(&eventb_count); +} + +static struct probe_data probe_array[] = +{ + { .name = "test_multi", + .format = MARK_NOARGS, + .probe_func = (marker_probe_func*)0xa }, + { .name = "test_multi", + .format = MARK_NOARGS, + .probe_func = (marker_probe_func*)0xb }, + { .name = "test_multi", + .format = MARK_NOARGS, + .probe_func = (marker_probe_func*)0xc }, + { .name = "test_multi", + .format = MARK_NOARGS, + .probe_func = (marker_probe_func*)0xd }, + { .name = "test_multi", + .format = MARK_NOARGS, + .probe_func = (marker_probe_func*)0x10 }, + { .name = "test_multi", + .format = MARK_NOARGS, + .probe_func = (marker_probe_func*)0x20 }, + { .name = "test_multi", + .format = MARK_NOARGS, + .probe_func = (marker_probe_func*)0x30 }, +}; + +static int __init probe_init(void) +{ + int result; + int i; + + for (i = 0; i < ARRAY_SIZE(probe_array); i++) { + result = marker_probe_register(probe_array[i].name, + probe_array[i].format, + probe_array[i].probe_func, (void*)(long)i); + if (result) + printk(KERN_INFO "Unable to register probe %s\n", + probe_array[i].name); + } + return 0; +} + +static void __exit probe_fini(void) +{ + int result; + int i; + + for (i = 0; i < ARRAY_SIZE(probe_array); i++) { + result = marker_probe_unregister(probe_array[i].name, + probe_array[i].probe_func, (void*)(long)i); + if (result) + printk(KERN_INFO "Unable to unregister probe %s\n", + probe_array[i].name); + } + printk(KERN_INFO "Number of event b : %u\n", + atomic_read(&eventb_count)); + marker_synchronize_unregister(); +} + +module_init(probe_init); +module_exit(probe_fini); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Mathieu Desnoyers"); +MODULE_DESCRIPTION("SUBSYSTEM Probe"); -- Mathieu Desnoyers OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/