-/*
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
* lttng-events.c
*
* Holds LTTng per-session event registry.
*
* Copyright (C) 2010-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
#include <linux/jhash.h>
#include <linux/uaccess.h>
#include <linux/vmalloc.h>
+#include <linux/uuid.h>
#include <wrapper/uuid.h>
-#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_all() */
+#include <wrapper/vmalloc.h> /* for wrapper_vmalloc_sync_mappings() */
#include <wrapper/random.h>
#include <wrapper/tracepoint.h>
#include <wrapper/list.h>
#include <wrapper/vzalloc.h>
#include <wrapper/ringbuffer/backend.h>
#include <wrapper/ringbuffer/frontend.h>
+#include <wrapper/time.h>
#define METADATA_CACHE_DEFAULT_SIZE 4096
void synchronize_trace(void)
{
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0))
+ synchronize_rcu();
+#else
synchronize_sched();
+#endif
+
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
#ifdef CONFIG_PREEMPT_RT_FULL
synchronize_rcu();
goto err;
INIT_LIST_HEAD(&session->chan);
INIT_LIST_HEAD(&session->events);
- uuid_le_gen(&session->uuid);
+ lttng_guid_gen(&session->uuid);
metadata_cache = kzalloc(sizeof(struct lttng_metadata_cache),
GFP_KERNEL);
WARN_ON(ret);
}
synchronize_trace(); /* Wait for in-flight events to complete */
+ list_for_each_entry(chan, &session->chan, list) {
+ ret = lttng_syscalls_destroy(chan);
+ WARN_ON(ret);
+ }
list_for_each_entry_safe(enabler, tmpenabler,
&session->enablers_head, node)
lttng_enabler_destroy(enabler);
BUG_ON(chan->channel_type == METADATA_CHANNEL);
_lttng_channel_destroy(chan);
}
+ mutex_lock(&session->metadata_cache->lock);
list_for_each_entry(metadata_stream, &session->metadata_cache->metadata_stream, list)
_lttng_metadata_channel_hangup(metadata_stream);
+ mutex_unlock(&session->metadata_cache->lock);
if (session->pid_tracker)
lttng_pid_tracker_destroy(session->pid_tracker);
kref_put(&session->metadata_cache->refcount, metadata_cache_destroy);
ret = -EINVAL;
break;
case LTTNG_KERNEL_KPROBE:
- case LTTNG_KERNEL_FUNCTION:
+ case LTTNG_KERNEL_UPROBE:
case LTTNG_KERNEL_NOOP:
WRITE_ONCE(event->enabled, 1);
break;
case LTTNG_KERNEL_KRETPROBE:
ret = lttng_kretprobes_event_enable_state(event, 1);
break;
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through. */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
ret = -EINVAL;
break;
case LTTNG_KERNEL_KPROBE:
- case LTTNG_KERNEL_FUNCTION:
+ case LTTNG_KERNEL_UPROBE:
case LTTNG_KERNEL_NOOP:
WRITE_ONCE(event->enabled, 0);
break;
case LTTNG_KERNEL_KRETPROBE:
ret = lttng_kretprobes_event_enable_state(event, 0);
break;
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through. */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
event_name = event_desc->name;
break;
case LTTNG_KERNEL_KPROBE:
+ case LTTNG_KERNEL_UPROBE:
case LTTNG_KERNEL_KRETPROBE:
- case LTTNG_KERNEL_FUNCTION:
case LTTNG_KERNEL_NOOP:
case LTTNG_KERNEL_SYSCALL:
event_name = event_param->name;
break;
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through. */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
list_add(&event_return->list, &chan->session->events);
break;
}
- case LTTNG_KERNEL_FUNCTION:
+ case LTTNG_KERNEL_NOOP:
+ case LTTNG_KERNEL_SYSCALL:
+ /*
+ * Needs to be explicitly enabled after creation, since
+ * we may want to apply filters.
+ */
+ event->enabled = 0;
+ event->registered = 0;
+ event->desc = event_desc;
+ switch (event_param->u.syscall.entryexit) {
+ case LTTNG_KERNEL_SYSCALL_ENTRYEXIT:
+ ret = -EINVAL;
+ goto register_error;
+ case LTTNG_KERNEL_SYSCALL_ENTRY:
+ event->u.syscall.entryexit = LTTNG_SYSCALL_ENTRY;
+ break;
+ case LTTNG_KERNEL_SYSCALL_EXIT:
+ event->u.syscall.entryexit = LTTNG_SYSCALL_EXIT;
+ break;
+ }
+ switch (event_param->u.syscall.abi) {
+ case LTTNG_KERNEL_SYSCALL_ABI_ALL:
+ ret = -EINVAL;
+ goto register_error;
+ case LTTNG_KERNEL_SYSCALL_ABI_NATIVE:
+ event->u.syscall.abi = LTTNG_SYSCALL_ABI_NATIVE;
+ break;
+ case LTTNG_KERNEL_SYSCALL_ABI_COMPAT:
+ event->u.syscall.abi = LTTNG_SYSCALL_ABI_COMPAT;
+ break;
+ }
+ if (!event->desc) {
+ ret = -EINVAL;
+ goto register_error;
+ }
+ break;
+ case LTTNG_KERNEL_UPROBE:
/*
* Needs to be explicitly enabled after creation, since
* we may want to apply filters.
*/
event->enabled = 0;
event->registered = 1;
+
/*
* Populate lttng_event structure before event
* registration.
*/
smp_wmb();
- ret = lttng_ftrace_register(event_name,
- event_param->u.ftrace.symbol_name,
+
+ ret = lttng_uprobes_register(event_param->name,
+ event_param->u.uprobe.fd,
event);
- if (ret) {
+ if (ret)
goto register_error;
- }
ret = try_module_get(event->desc->owner);
WARN_ON_ONCE(!ret);
break;
- case LTTNG_KERNEL_NOOP:
- case LTTNG_KERNEL_SYSCALL:
- /*
- * Needs to be explicitly enabled after creation, since
- * we may want to apply filters.
- */
- event->enabled = 0;
- event->registered = 0;
- event->desc = event_desc;
- if (!event->desc) {
- ret = -EINVAL;
- goto register_error;
- }
- break;
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
event);
break;
case LTTNG_KERNEL_SYSCALL:
- ret = lttng_syscall_filter_enable(event->chan,
- desc->name);
+ ret = lttng_syscall_filter_enable(event->chan, event);
break;
case LTTNG_KERNEL_KPROBE:
+ case LTTNG_KERNEL_UPROBE:
case LTTNG_KERNEL_KRETPROBE:
- case LTTNG_KERNEL_FUNCTION:
case LTTNG_KERNEL_NOOP:
ret = 0;
break;
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
default:
WARN_ON_ONCE(1);
}
lttng_kretprobes_unregister(event);
ret = 0;
break;
- case LTTNG_KERNEL_FUNCTION:
- lttng_ftrace_unregister(event);
- ret = 0;
- break;
case LTTNG_KERNEL_SYSCALL:
- ret = lttng_syscall_filter_disable(event->chan,
- desc->name);
+ ret = lttng_syscall_filter_disable(event->chan, event);
break;
case LTTNG_KERNEL_NOOP:
ret = 0;
break;
+ case LTTNG_KERNEL_UPROBE:
+ lttng_uprobes_unregister(event);
+ ret = 0;
+ break;
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
default:
WARN_ON_ONCE(1);
}
module_put(event->desc->owner);
lttng_kretprobes_destroy_private(event);
break;
- case LTTNG_KERNEL_FUNCTION:
- module_put(event->desc->owner);
- lttng_ftrace_destroy_private(event);
- break;
case LTTNG_KERNEL_NOOP:
case LTTNG_KERNEL_SYSCALL:
break;
+ case LTTNG_KERNEL_UPROBE:
+ module_put(event->desc->owner);
+ lttng_uprobes_destroy_private(event);
+ break;
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
default:
WARN_ON_ONCE(1);
}
ret = PTR_ERR(tracker_pids_list_file);
goto file_error;
}
- if (atomic_long_add_unless(&session->file->f_count,
- 1, INT_MAX) == INT_MAX) {
+ if (!atomic_long_add_unless(&session->file->f_count, 1, LONG_MAX)) {
+ ret = -EOVERFLOW;
goto refcount_error;
}
ret = lttng_tracker_pids_list_fops.open(NULL, tracker_pids_list_file);
struct lttng_enabler *enabler)
{
const char *desc_name, *enabler_name;
+ bool compat = false, entry = false;
enabler_name = enabler->event_param.name;
switch (enabler->event_param.instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
desc_name = desc->name;
+ switch (enabler->type) {
+ case LTTNG_ENABLER_STAR_GLOB:
+ return lttng_match_enabler_star_glob(desc_name, enabler_name);
+ case LTTNG_ENABLER_NAME:
+ return lttng_match_enabler_name(desc_name, enabler_name);
+ default:
+ return -EINVAL;
+ }
break;
case LTTNG_KERNEL_SYSCALL:
desc_name = desc->name;
- if (!strncmp(desc_name, "compat_", strlen("compat_")))
+ if (!strncmp(desc_name, "compat_", strlen("compat_"))) {
desc_name += strlen("compat_");
+ compat = true;
+ }
if (!strncmp(desc_name, "syscall_exit_",
strlen("syscall_exit_"))) {
desc_name += strlen("syscall_exit_");
} else if (!strncmp(desc_name, "syscall_entry_",
strlen("syscall_entry_"))) {
desc_name += strlen("syscall_entry_");
+ entry = true;
} else {
WARN_ON_ONCE(1);
return -EINVAL;
}
+ switch (enabler->event_param.u.syscall.entryexit) {
+ case LTTNG_KERNEL_SYSCALL_ENTRYEXIT:
+ break;
+ case LTTNG_KERNEL_SYSCALL_ENTRY:
+ if (!entry)
+ return 0;
+ break;
+ case LTTNG_KERNEL_SYSCALL_EXIT:
+ if (entry)
+ return 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ switch (enabler->event_param.u.syscall.abi) {
+ case LTTNG_KERNEL_SYSCALL_ABI_ALL:
+ break;
+ case LTTNG_KERNEL_SYSCALL_ABI_NATIVE:
+ if (compat)
+ return 0;
+ break;
+ case LTTNG_KERNEL_SYSCALL_ABI_COMPAT:
+ if (!compat)
+ return 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+ switch (enabler->event_param.u.syscall.match) {
+ case LTTNG_SYSCALL_MATCH_NAME:
+ switch (enabler->type) {
+ case LTTNG_ENABLER_STAR_GLOB:
+ return lttng_match_enabler_star_glob(desc_name, enabler_name);
+ case LTTNG_ENABLER_NAME:
+ return lttng_match_enabler_name(desc_name, enabler_name);
+ default:
+ return -EINVAL;
+ }
+ break;
+ case LTTNG_SYSCALL_MATCH_NR:
+ return -EINVAL; /* Not implemented. */
+ default:
+ return -EINVAL;
+ }
break;
default:
WARN_ON_ONCE(1);
return -EINVAL;
}
- switch (enabler->type) {
- case LTTNG_ENABLER_STAR_GLOB:
- return lttng_match_enabler_star_glob(desc_name, enabler_name);
- case LTTNG_ENABLER_NAME:
- return lttng_match_enabler_name(desc_name, enabler_name);
- default:
- return -EINVAL;
- }
}
static
static
int lttng_enabler_ref_events(struct lttng_enabler *enabler)
{
- struct lttng_session *session = enabler->chan->session;
+ struct lttng_channel *chan = enabler->chan;
+ struct lttng_session *session = chan->session;
struct lttng_event *event;
+ if (enabler->event_param.instrumentation == LTTNG_KERNEL_SYSCALL &&
+ enabler->event_param.u.syscall.entryexit == LTTNG_KERNEL_SYSCALL_ENTRYEXIT &&
+ enabler->event_param.u.syscall.abi == LTTNG_KERNEL_SYSCALL_ABI_ALL &&
+ enabler->event_param.u.syscall.match == LTTNG_SYSCALL_MATCH_NAME &&
+ !strcmp(enabler->event_param.name, "*")) {
+ if (enabler->enabled)
+ WRITE_ONCE(chan->syscall_all, 1);
+ else
+ WRITE_ONCE(chan->syscall_all, 0);
+ }
+
/* First ensure that probe events are created for this enabler. */
lttng_create_event_if_missing(enabler);
return ret;
}
+int lttng_event_add_callsite(struct lttng_event *event,
+ struct lttng_kernel_event_callsite __user *callsite)
+{
+
+ switch (event->instrumentation) {
+ case LTTNG_KERNEL_UPROBE:
+ return lttng_uprobes_add_callsite(event, callsite);
+ default:
+ return -EINVAL;
+ }
+}
+
int lttng_enabler_attach_context(struct lttng_enabler *enabler,
struct lttng_kernel_context *context_param)
{
* was written and a negative value on error.
*/
int lttng_metadata_output_channel(struct lttng_metadata_stream *stream,
- struct channel *chan)
+ struct channel *chan, bool *coherent)
{
struct lib_ring_buffer_ctx ctx;
int ret = 0;
ret = stream->transport->ops.event_reserve(&ctx, 0);
if (ret != 0) {
printk(KERN_WARNING "LTTng: Metadata event reservation failed\n");
+ stream->coherent = false;
goto end;
}
stream->transport->ops.event_write(&ctx,
reserve_len);
stream->transport->ops.event_commit(&ctx);
stream->metadata_in += reserve_len;
+ if (reserve_len < len)
+ stream->coherent = false;
+ else
+ stream->coherent = true;
ret = reserve_len;
end:
+ if (coherent)
+ *coherent = stream->coherent;
mutex_unlock(&stream->metadata_cache->lock);
return ret;
}
+static
+void lttng_metadata_begin(struct lttng_session *session)
+{
+ if (atomic_inc_return(&session->metadata_cache->producing) == 1)
+ mutex_lock(&session->metadata_cache->lock);
+}
+
+static
+void lttng_metadata_end(struct lttng_session *session)
+{
+ WARN_ON_ONCE(!atomic_read(&session->metadata_cache->producing));
+ if (atomic_dec_return(&session->metadata_cache->producing) == 0) {
+ struct lttng_metadata_stream *stream;
+
+ list_for_each_entry(stream, &session->metadata_cache->metadata_stream, list)
+ wake_up_interruptible(&stream->read_wait);
+ mutex_unlock(&session->metadata_cache->lock);
+ }
+}
+
/*
* Write the metadata to the metadata cache.
* Must be called with sessions_mutex held.
* The metadata cache lock protects us from concurrent read access from
* thread outputting metadata content to ring buffer.
+ * The content of the printf is printed as a single atomic metadata
+ * transaction.
*/
int lttng_metadata_printf(struct lttng_session *session,
const char *fmt, ...)
char *str;
size_t len;
va_list ap;
- struct lttng_metadata_stream *stream;
- WARN_ON_ONCE(!READ_ONCE(session->active));
+ WARN_ON_ONCE(!LTTNG_READ_ONCE(session->active));
va_start(ap, fmt);
str = kvasprintf(GFP_KERNEL, fmt, ap);
return -ENOMEM;
len = strlen(str);
- mutex_lock(&session->metadata_cache->lock);
+ WARN_ON_ONCE(!atomic_read(&session->metadata_cache->producing));
if (session->metadata_cache->metadata_written + len >
session->metadata_cache->cache_alloc) {
char *tmp_cache_realloc;
session->metadata_cache->metadata_written,
str, len);
session->metadata_cache->metadata_written += len;
- mutex_unlock(&session->metadata_cache->lock);
kfree(str);
- list_for_each_entry(stream, &session->metadata_cache->metadata_stream, list)
- wake_up_interruptible(&stream->read_wait);
-
return 0;
err:
- mutex_unlock(&session->metadata_cache->lock);
kfree(str);
return -ENOMEM;
}
ret = _lttng_enum_statedump(session, field, nesting);
break;
case atype_array:
+ case atype_array_bitfield:
{
const struct lttng_basic_type *elem_type;
break;
}
case atype_sequence:
+ case atype_sequence_bitfield:
{
const struct lttng_basic_type *elem_type;
const struct lttng_basic_type *length_type;
/*
* Must be called with sessions_mutex held.
+ * The entire event metadata is printed as a single atomic metadata
+ * transaction.
*/
static
int _lttng_event_metadata_statedump(struct lttng_session *session,
{
int ret = 0;
- if (event->metadata_dumped || !READ_ONCE(session->active))
+ if (event->metadata_dumped || !LTTNG_READ_ONCE(session->active))
return 0;
if (chan->channel_type == METADATA_CHANNEL)
return 0;
+ lttng_metadata_begin(session);
+
ret = lttng_metadata_printf(session,
"event {\n"
" name = \"%s\";\n"
event->metadata_dumped = 1;
end:
+ lttng_metadata_end(session);
return ret;
}
/*
* Must be called with sessions_mutex held.
+ * The entire channel metadata is printed as a single atomic metadata
+ * transaction.
*/
static
int _lttng_channel_metadata_statedump(struct lttng_session *session,
{
int ret = 0;
- if (chan->metadata_dumped || !READ_ONCE(session->active))
+ if (chan->metadata_dumped || !LTTNG_READ_ONCE(session->active))
return 0;
if (chan->channel_type == METADATA_CHANNEL)
return 0;
+ lttng_metadata_begin(session);
+
WARN_ON_ONCE(!chan->header_type);
ret = lttng_metadata_printf(session,
"stream {\n"
chan->metadata_dumped = 1;
end:
+ lttng_metadata_end(session);
return ret;
}
* in future versions.
* This function may return a negative offset. It may happen if the
* system sets the REALTIME clock to 0 after boot.
+ *
+ * Use 64bit timespec on kernels that have it, this makes 32bit arch
+ * y2038 compliant.
*/
static
int64_t measure_clock_offset(void)
uint64_t monotonic_avg, monotonic[2], realtime;
uint64_t tcf = trace_clock_freq();
int64_t offset;
- struct timespec rts = { 0, 0 };
unsigned long flags;
+#ifdef LTTNG_KERNEL_HAS_TIMESPEC64
+ struct timespec64 rts = { 0, 0 };
+#else
+ struct timespec rts = { 0, 0 };
+#endif
/* Disable interrupts to increase correlation precision. */
local_irq_save(flags);
monotonic[0] = trace_clock_read64();
+#ifdef LTTNG_KERNEL_HAS_TIMESPEC64
+ ktime_get_real_ts64(&rts);
+#else
getnstimeofday(&rts);
+#endif
monotonic[1] = trace_clock_read64();
local_irq_restore(flags);
return offset;
}
+static
+int print_escaped_ctf_string(struct lttng_session *session, const char *string)
+{
+ int ret;
+ size_t i;
+ char cur;
+
+ i = 0;
+ cur = string[i];
+ while (cur != '\0') {
+ switch (cur) {
+ case '\n':
+ ret = lttng_metadata_printf(session, "%s", "\\n");
+ break;
+ case '\\':
+ case '"':
+ ret = lttng_metadata_printf(session, "%c", '\\');
+ if (ret)
+ goto error;
+ /* We still print the current char */
+ /* Fallthrough */
+ default:
+ ret = lttng_metadata_printf(session, "%c", cur);
+ break;
+ }
+
+ if (ret)
+ goto error;
+
+ cur = string[++i];
+ }
+error:
+ return ret;
+}
+
+static
+int print_metadata_escaped_field(struct lttng_session *session, const char *field,
+ const char *field_value)
+{
+ int ret;
+
+ ret = lttng_metadata_printf(session, " %s = \"", field);
+ if (ret)
+ goto error;
+
+ ret = print_escaped_ctf_string(session, field_value);
+ if (ret)
+ goto error;
+
+ ret = lttng_metadata_printf(session, "\";\n");
+
+error:
+ return ret;
+}
+
/*
* Output metadata into this session's metadata buffers.
* Must be called with sessions_mutex held.
struct lttng_event *event;
int ret = 0;
- if (!READ_ONCE(session->active))
+ if (!LTTNG_READ_ONCE(session->active))
return 0;
+
+ lttng_metadata_begin(session);
+
if (session->metadata_dumped)
goto skip_session;
" tracer_major = %d;\n"
" tracer_minor = %d;\n"
" tracer_patchlevel = %d;\n"
- "};\n\n",
+ " trace_buffering_scheme = \"global\";\n",
current->nsproxy->uts_ns->name.nodename,
utsname()->sysname,
utsname()->release,
if (ret)
goto end;
+ ret = print_metadata_escaped_field(session, "trace_name", session->name);
+ if (ret)
+ goto end;
+ ret = print_metadata_escaped_field(session, "trace_creation_datetime",
+ session->creation_time);
+ if (ret)
+ goto end;
+
+ /* Close env */
+ ret = lttng_metadata_printf(session, "};\n\n");
+ if (ret)
+ goto end;
+
ret = lttng_metadata_printf(session,
"clock {\n"
" name = \"%s\";\n",
}
session->metadata_dumped = 1;
end:
+ lttng_metadata_end(session);
return ret;
}
* Registers a transport which can be used as output to extract the data out of
* LTTng. The module calling this registration function must ensure that no
* trap-inducing code will be executed by the transport functions. E.g.
- * vmalloc_sync_all() must be called between a vmalloc and the moment the memory
+ * vmalloc_sync_mappings() must be called between a vmalloc and the moment the memory
* is made visible to the transport function. This registration acts as a
- * vmalloc_sync_all. Therefore, only if the module allocates virtual memory
+ * vmalloc_sync_mappings. Therefore, only if the module allocates virtual memory
* after its registration must it synchronize the TLBs.
*/
void lttng_transport_register(struct lttng_transport *transport)
/*
* Make sure no page fault can be triggered by the module about to be
* registered. We deal with this here so we don't have to call
- * vmalloc_sync_all() in each module's init.
+ * vmalloc_sync_mappings() in each module's init.
*/
- wrapper_vmalloc_sync_all();
+ wrapper_vmalloc_sync_mappings();
mutex_lock(&sessions_mutex);
list_add_tail(&transport->node, <tng_transport_list);
ret = lttng_init_cpu_hotplug();
if (ret)
goto error_hotplug;
- printk(KERN_NOTICE "LTTng: Loaded modules v%s.%s.%s%s (%s)\n",
+ printk(KERN_NOTICE "LTTng: Loaded modules v%s.%s.%s%s (%s)%s%s\n",
__stringify(LTTNG_MODULES_MAJOR_VERSION),
__stringify(LTTNG_MODULES_MINOR_VERSION),
__stringify(LTTNG_MODULES_PATCHLEVEL_VERSION),
LTTNG_MODULES_EXTRAVERSION,
- LTTNG_VERSION_NAME);
+ LTTNG_VERSION_NAME,
+#ifdef LTTNG_EXTRA_VERSION_GIT
+ LTTNG_EXTRA_VERSION_GIT[0] == '\0' ? "" : " - " LTTNG_EXTRA_VERSION_GIT,
+#else
+ "",
+#endif
+#ifdef LTTNG_EXTRA_VERSION_NAME
+ LTTNG_EXTRA_VERSION_NAME[0] == '\0' ? "" : " - " LTTNG_EXTRA_VERSION_NAME);
+#else
+ "");
+#endif
return 0;
error_hotplug:
lttng_tracepoint_exit();
error_tp:
lttng_context_exit();
- printk(KERN_NOTICE "LTTng: Failed to load modules v%s.%s.%s%s (%s)\n",
+ printk(KERN_NOTICE "LTTng: Failed to load modules v%s.%s.%s%s (%s)%s%s\n",
__stringify(LTTNG_MODULES_MAJOR_VERSION),
__stringify(LTTNG_MODULES_MINOR_VERSION),
__stringify(LTTNG_MODULES_PATCHLEVEL_VERSION),
LTTNG_MODULES_EXTRAVERSION,
- LTTNG_VERSION_NAME);
+ LTTNG_VERSION_NAME,
+#ifdef LTTNG_EXTRA_VERSION_GIT
+ LTTNG_EXTRA_VERSION_GIT[0] == '\0' ? "" : " - " LTTNG_EXTRA_VERSION_GIT,
+#else
+ "",
+#endif
+#ifdef LTTNG_EXTRA_VERSION_NAME
+ LTTNG_EXTRA_VERSION_NAME[0] == '\0' ? "" : " - " LTTNG_EXTRA_VERSION_NAME);
+#else
+ "");
+#endif
return ret;
}
kmem_cache_destroy(event_cache);
lttng_tracepoint_exit();
lttng_context_exit();
- printk(KERN_NOTICE "LTTng: Unloaded modules v%s.%s.%s%s (%s)\n",
+ printk(KERN_NOTICE "LTTng: Unloaded modules v%s.%s.%s%s (%s)%s%s\n",
__stringify(LTTNG_MODULES_MAJOR_VERSION),
__stringify(LTTNG_MODULES_MINOR_VERSION),
__stringify(LTTNG_MODULES_PATCHLEVEL_VERSION),
LTTNG_MODULES_EXTRAVERSION,
- LTTNG_VERSION_NAME);
+ LTTNG_VERSION_NAME,
+#ifdef LTTNG_EXTRA_VERSION_GIT
+ LTTNG_EXTRA_VERSION_GIT[0] == '\0' ? "" : " - " LTTNG_EXTRA_VERSION_GIT,
+#else
+ "",
+#endif
+#ifdef LTTNG_EXTRA_VERSION_NAME
+ LTTNG_EXTRA_VERSION_NAME[0] == '\0' ? "" : " - " LTTNG_EXTRA_VERSION_NAME);
+#else
+ "");
+#endif
}
module_exit(lttng_events_exit);
+#include "extra_version/patches.i"
+#ifdef LTTNG_EXTRA_VERSION_GIT
+MODULE_INFO(extra_version_git, LTTNG_EXTRA_VERSION_GIT);
+#endif
+#ifdef LTTNG_EXTRA_VERSION_NAME
+MODULE_INFO(extra_version_name, LTTNG_EXTRA_VERSION_NAME);
+#endif
MODULE_LICENSE("GPL and additional rights");
MODULE_AUTHOR("Mathieu Desnoyers <mathieu.desnoyers@efficios.com>");
-MODULE_DESCRIPTION("LTTng Events");
+MODULE_DESCRIPTION("LTTng tracer");
MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
__stringify(LTTNG_MODULES_MINOR_VERSION) "."
__stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)