/*
- * Copyright (C) 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
- * Copyright (C) 2011-2013 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * SPDX-License-Identifier: GPL-2.0-only
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License only.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * Copyright (C) 2011 Julien Desfossez <julien.desfossez@polymtl.ca>
+ * Copyright (C) 2011-2013 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*/
#include <stdint.h>
#include <string.h>
#include <sys/mman.h>
#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
#include <lttng/ust-config.h>
#include <lttng/ust-ctl.h>
#include <lttng/ust-abi.h>
-#include <lttng/ust-events.h>
#include <lttng/ust-endian.h>
+
#include <usterr-signal-safe.h>
#include <ust-comm.h>
-#include <helper.h>
+#include <ust-helper.h>
+#include "ust-compat.h"
#include "../libringbuffer/backend.h"
#include "../libringbuffer/frontend.h"
+#include "../liblttng-ust/ust-events-internal.h"
#include "../liblttng-ust/wait.h"
#include "../liblttng-ust/lttng-rb-clients.h"
#include "../liblttng-ust/clock.h"
#include "../liblttng-ust/getenv.h"
+#include "../liblttng-ust/lttng-tracer-core.h"
+
+#include "../libcounter/shm.h"
+#include "../libcounter/smp.h"
+#include "../libcounter/counter.h"
/*
* Number of milliseconds to retry before failing metadata writes on
uint64_t memory_map_size;
};
+#define USTCTL_COUNTER_ATTR_DIMENSION_MAX 8
+struct ustctl_counter_attr {
+ enum ustctl_counter_arithmetic arithmetic;
+ enum ustctl_counter_bitness bitness;
+ uint32_t nr_dimensions;
+ int64_t global_sum_step;
+ struct ustctl_counter_dimension dimensions[USTCTL_COUNTER_ATTR_DIMENSION_MAX];
+ bool coalesce_hits;
+};
+
+/*
+ * Counter representation within daemon.
+ */
+struct ustctl_daemon_counter {
+ struct lib_counter *counter;
+ const struct lttng_counter_ops *ops;
+ struct ustctl_counter_attr *attr; /* initial attributes */
+};
+
extern void lttng_ring_buffer_client_overwrite_init(void);
extern void lttng_ring_buffer_client_overwrite_rt_init(void);
extern void lttng_ring_buffer_client_discard_init(void);
extern void lttng_ring_buffer_client_discard_rt_exit(void);
extern void lttng_ring_buffer_metadata_client_exit(void);
+__attribute__((visibility("hidden")))
+extern void lttng_counter_client_percpu_32_modular_init(void);
+
+__attribute__((visibility("hidden")))
+extern void lttng_counter_client_percpu_32_modular_exit(void);
+
+__attribute__((visibility("hidden")))
+extern void lttng_counter_client_percpu_64_modular_init(void);
+
+__attribute__((visibility("hidden")))
+extern void lttng_counter_client_percpu_64_modular_exit(void);
+
int ustctl_release_handle(int sock, int handle)
{
struct ustcomm_ust_msg lum;
return 0;
memset(&lum, 0, sizeof(lum));
lum.handle = handle;
- lum.cmd = LTTNG_UST_RELEASE;
+ lum.cmd = LTTNG_UST_ABI_RELEASE;
return ustcomm_send_app_cmd(sock, &lum, &lur);
}
* If sock is negative, it means we don't have to notify the other side
* (e.g. application has already vanished).
*/
-int ustctl_release_object(int sock, struct lttng_ust_object_data *data)
+int ustctl_release_object(int sock, struct lttng_ust_abi_object_data *data)
{
int ret;
return -EINVAL;
switch (data->type) {
- case LTTNG_UST_OBJECT_TYPE_CHANNEL:
+ case LTTNG_UST_ABI_OBJECT_TYPE_CHANNEL:
if (data->u.channel.wakeup_fd >= 0) {
ret = close(data->u.channel.wakeup_fd);
if (ret < 0) {
free(data->u.channel.data);
data->u.channel.data = NULL;
break;
- case LTTNG_UST_OBJECT_TYPE_STREAM:
+ case LTTNG_UST_ABI_OBJECT_TYPE_STREAM:
if (data->u.stream.shm_fd >= 0) {
ret = close(data->u.stream.shm_fd);
if (ret < 0) {
data->u.stream.wakeup_fd = -1;
}
break;
- case LTTNG_UST_OBJECT_TYPE_EVENT:
- case LTTNG_UST_OBJECT_TYPE_CONTEXT:
+ case LTTNG_UST_ABI_OBJECT_TYPE_EVENT:
+ case LTTNG_UST_ABI_OBJECT_TYPE_CONTEXT:
+ case LTTNG_UST_ABI_OBJECT_TYPE_EVENT_NOTIFIER_GROUP:
+ case LTTNG_UST_ABI_OBJECT_TYPE_EVENT_NOTIFIER:
+ break;
+ case LTTNG_UST_ABI_OBJECT_TYPE_COUNTER:
+ free(data->u.counter.data);
+ data->u.counter.data = NULL;
+ break;
+ case LTTNG_UST_ABI_OBJECT_TYPE_COUNTER_GLOBAL:
+ if (data->u.counter_global.shm_fd >= 0) {
+ ret = close(data->u.counter_global.shm_fd);
+ if (ret < 0) {
+ ret = -errno;
+ return ret;
+ }
+ data->u.counter_global.shm_fd = -1;
+ }
+ break;
+ case LTTNG_UST_ABI_OBJECT_TYPE_COUNTER_CPU:
+ if (data->u.counter_cpu.shm_fd >= 0) {
+ ret = close(data->u.counter_cpu.shm_fd);
+ if (ret < 0) {
+ ret = -errno;
+ return ret;
+ }
+ data->u.counter_cpu.shm_fd = -1;
+ }
break;
default:
assert(0);
DBG("Sending register done command to %d", sock);
memset(&lum, 0, sizeof(lum));
- lum.handle = LTTNG_UST_ROOT_HANDLE;
- lum.cmd = LTTNG_UST_REGISTER_DONE;
+ lum.handle = LTTNG_UST_ABI_ROOT_HANDLE;
+ lum.cmd = LTTNG_UST_ABI_REGISTER_DONE;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
/* Create session */
memset(&lum, 0, sizeof(lum));
- lum.handle = LTTNG_UST_ROOT_HANDLE;
- lum.cmd = LTTNG_UST_SESSION;
+ lum.handle = LTTNG_UST_ABI_ROOT_HANDLE;
+ lum.cmd = LTTNG_UST_ABI_SESSION;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
return session_handle;
}
-int ustctl_create_event(int sock, struct lttng_ust_event *ev,
- struct lttng_ust_object_data *channel_data,
- struct lttng_ust_object_data **_event_data)
+int ustctl_create_event(int sock, struct lttng_ust_abi_event *ev,
+ struct lttng_ust_abi_object_data *channel_data,
+ struct lttng_ust_abi_object_data **_event_data)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
- struct lttng_ust_object_data *event_data;
+ struct lttng_ust_abi_object_data *event_data;
int ret;
if (!channel_data || !_event_data)
event_data = zmalloc(sizeof(*event_data));
if (!event_data)
return -ENOMEM;
- event_data->type = LTTNG_UST_OBJECT_TYPE_EVENT;
+ event_data->type = LTTNG_UST_ABI_OBJECT_TYPE_EVENT;
memset(&lum, 0, sizeof(lum));
lum.handle = channel_data->handle;
- lum.cmd = LTTNG_UST_EVENT;
+ lum.cmd = LTTNG_UST_ABI_EVENT;
strncpy(lum.u.event.name, ev->name,
- LTTNG_UST_SYM_NAME_LEN);
+ LTTNG_UST_ABI_SYM_NAME_LEN);
lum.u.event.instrumentation = ev->instrumentation;
lum.u.event.loglevel_type = ev->loglevel_type;
lum.u.event.loglevel = ev->loglevel;
}
int ustctl_add_context(int sock, struct lttng_ust_context_attr *ctx,
- struct lttng_ust_object_data *obj_data,
- struct lttng_ust_object_data **_context_data)
+ struct lttng_ust_abi_object_data *obj_data,
+ struct lttng_ust_abi_object_data **_context_data)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
- struct lttng_ust_object_data *context_data = NULL;
+ struct lttng_ust_abi_object_data *context_data = NULL;
char *buf = NULL;
size_t len;
int ret;
ret = -ENOMEM;
goto end;
}
- context_data->type = LTTNG_UST_OBJECT_TYPE_CONTEXT;
+ context_data->type = LTTNG_UST_ABI_OBJECT_TYPE_CONTEXT;
memset(&lum, 0, sizeof(lum));
lum.handle = obj_data->handle;
- lum.cmd = LTTNG_UST_CONTEXT;
+ lum.cmd = LTTNG_UST_ABI_CONTEXT;
lum.u.context.ctx = ctx->ctx;
switch (ctx->ctx) {
- case LTTNG_UST_CONTEXT_PERF_THREAD_COUNTER:
+ case LTTNG_UST_ABI_CONTEXT_PERF_THREAD_COUNTER:
lum.u.context.u.perf_counter = ctx->u.perf_counter;
break;
- case LTTNG_UST_CONTEXT_APP_CONTEXT:
+ case LTTNG_UST_ABI_CONTEXT_APP_CONTEXT:
{
size_t provider_name_len = strlen(
ctx->u.app_ctx.provider_name) + 1;
return ret;
}
-int ustctl_set_filter(int sock, struct lttng_ust_filter_bytecode *bytecode,
- struct lttng_ust_object_data *obj_data)
+int ustctl_set_filter(int sock, struct lttng_ust_abi_filter_bytecode *bytecode,
+ struct lttng_ust_abi_object_data *obj_data)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = obj_data->handle;
- lum.cmd = LTTNG_UST_FILTER;
+ lum.cmd = LTTNG_UST_ABI_FILTER;
lum.u.filter.data_size = bytecode->len;
lum.u.filter.reloc_offset = bytecode->reloc_offset;
lum.u.filter.seqnum = bytecode->seqnum;
return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
}
-int ustctl_set_exclusion(int sock, struct lttng_ust_event_exclusion *exclusion,
- struct lttng_ust_object_data *obj_data)
+int ustctl_set_capture(int sock, struct lttng_ust_abi_capture_bytecode *bytecode,
+ struct lttng_ust_abi_object_data *obj_data)
+{
+ struct ustcomm_ust_msg lum;
+ struct ustcomm_ust_reply lur;
+ int ret;
+
+ if (!obj_data)
+ return -EINVAL;
+
+ memset(&lum, 0, sizeof(lum));
+ lum.handle = obj_data->handle;
+ lum.cmd = LTTNG_UST_ABI_CAPTURE;
+ lum.u.capture.data_size = bytecode->len;
+ lum.u.capture.reloc_offset = bytecode->reloc_offset;
+ lum.u.capture.seqnum = bytecode->seqnum;
+
+ ret = ustcomm_send_app_msg(sock, &lum);
+ if (ret)
+ return ret;
+ /* send var len bytecode */
+ ret = ustcomm_send_unix_sock(sock, bytecode->data,
+ bytecode->len);
+ if (ret < 0) {
+ return ret;
+ }
+ if (ret != bytecode->len)
+ return -EINVAL;
+ return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
+}
+
+int ustctl_set_exclusion(int sock, struct lttng_ust_abi_event_exclusion *exclusion,
+ struct lttng_ust_abi_object_data *obj_data)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = obj_data->handle;
- lum.cmd = LTTNG_UST_EXCLUSION;
+ lum.cmd = LTTNG_UST_ABI_EXCLUSION;
lum.u.exclusion.count = exclusion->count;
ret = ustcomm_send_app_msg(sock, &lum);
/* send var len exclusion names */
ret = ustcomm_send_unix_sock(sock,
exclusion->names,
- exclusion->count * LTTNG_UST_SYM_NAME_LEN);
+ exclusion->count * LTTNG_UST_ABI_SYM_NAME_LEN);
if (ret < 0) {
return ret;
}
- if (ret != exclusion->count * LTTNG_UST_SYM_NAME_LEN) {
+ if (ret != exclusion->count * LTTNG_UST_ABI_SYM_NAME_LEN) {
return -EINVAL;
}
return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
}
/* Enable event, channel and session ioctl */
-int ustctl_enable(int sock, struct lttng_ust_object_data *object)
+int ustctl_enable(int sock, struct lttng_ust_abi_object_data *object)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = object->handle;
- lum.cmd = LTTNG_UST_ENABLE;
+ lum.cmd = LTTNG_UST_ABI_ENABLE;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
}
/* Disable event, channel and session ioctl */
-int ustctl_disable(int sock, struct lttng_ust_object_data *object)
+int ustctl_disable(int sock, struct lttng_ust_abi_object_data *object)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = object->handle;
- lum.cmd = LTTNG_UST_DISABLE;
+ lum.cmd = LTTNG_UST_ABI_DISABLE;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
int ustctl_start_session(int sock, int handle)
{
- struct lttng_ust_object_data obj;
+ struct lttng_ust_abi_object_data obj;
obj.handle = handle;
return ustctl_enable(sock, &obj);
int ustctl_stop_session(int sock, int handle)
{
- struct lttng_ust_object_data obj;
+ struct lttng_ust_abi_object_data obj;
obj.handle = handle;
return ustctl_disable(sock, &obj);
}
+int ustctl_create_event_notifier_group(int sock, int pipe_fd,
+ struct lttng_ust_abi_object_data **_event_notifier_group_data)
+{
+ struct lttng_ust_abi_object_data *event_notifier_group_data;
+ struct ustcomm_ust_msg lum;
+ struct ustcomm_ust_reply lur;
+ ssize_t len;
+ int ret;
+
+ if (!_event_notifier_group_data)
+ return -EINVAL;
+
+ event_notifier_group_data = zmalloc(sizeof(*event_notifier_group_data));
+ if (!event_notifier_group_data)
+ return -ENOMEM;
+
+ event_notifier_group_data->type = LTTNG_UST_ABI_OBJECT_TYPE_EVENT_NOTIFIER_GROUP;
+
+ memset(&lum, 0, sizeof(lum));
+ lum.handle = LTTNG_UST_ABI_ROOT_HANDLE;
+ lum.cmd = LTTNG_UST_ABI_EVENT_NOTIFIER_GROUP_CREATE;
+
+ ret = ustcomm_send_app_msg(sock, &lum);
+ if (ret)
+ goto error;
+
+ /* Send event_notifier notification pipe. */
+ len = ustcomm_send_fds_unix_sock(sock, &pipe_fd, 1);
+ if (len <= 0) {
+ ret = len;
+ goto error;
+ }
+
+ ret = ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
+ if (ret)
+ goto error;
+
+ event_notifier_group_data->handle = lur.ret_val;
+ DBG("received event_notifier group handle %d", event_notifier_group_data->handle);
+
+ *_event_notifier_group_data = event_notifier_group_data;
+
+ ret = 0;
+ goto end;
+error:
+ free(event_notifier_group_data);
+
+end:
+ return ret;
+}
+
+int ustctl_create_event_notifier(int sock, struct lttng_ust_abi_event_notifier *event_notifier,
+ struct lttng_ust_abi_object_data *event_notifier_group,
+ struct lttng_ust_abi_object_data **_event_notifier_data)
+{
+ struct ustcomm_ust_msg lum;
+ struct ustcomm_ust_reply lur;
+ struct lttng_ust_abi_object_data *event_notifier_data;
+ ssize_t len;
+ int ret;
+
+ if (!event_notifier_group || !_event_notifier_data)
+ return -EINVAL;
+
+ event_notifier_data = zmalloc(sizeof(*event_notifier_data));
+ if (!event_notifier_data)
+ return -ENOMEM;
+
+ event_notifier_data->type = LTTNG_UST_ABI_OBJECT_TYPE_EVENT_NOTIFIER;
+
+ memset(&lum, 0, sizeof(lum));
+ lum.handle = event_notifier_group->handle;
+ lum.cmd = LTTNG_UST_ABI_EVENT_NOTIFIER_CREATE;
+ lum.u.event_notifier.len = sizeof(*event_notifier);
+
+ ret = ustcomm_send_app_msg(sock, &lum);
+ if (ret) {
+ free(event_notifier_data);
+ return ret;
+ }
+ /* Send struct lttng_ust_event_notifier */
+ len = ustcomm_send_unix_sock(sock, event_notifier, sizeof(*event_notifier));
+ if (len != sizeof(*event_notifier)) {
+ if (len < 0)
+ return len;
+ else
+ return -EIO;
+ }
+ ret = ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
+ if (ret) {
+ free(event_notifier_data);
+ return ret;
+ }
+ event_notifier_data->handle = lur.ret_val;
+ DBG("received event_notifier handle %u", event_notifier_data->handle);
+ *_event_notifier_data = event_notifier_data;
+
+ return ret;
+}
+
int ustctl_tracepoint_list(int sock)
{
struct ustcomm_ust_msg lum;
int ret, tp_list_handle;
memset(&lum, 0, sizeof(lum));
- lum.handle = LTTNG_UST_ROOT_HANDLE;
- lum.cmd = LTTNG_UST_TRACEPOINT_LIST;
+ lum.handle = LTTNG_UST_ABI_ROOT_HANDLE;
+ lum.cmd = LTTNG_UST_ABI_TRACEPOINT_LIST;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
}
int ustctl_tracepoint_list_get(int sock, int tp_list_handle,
- struct lttng_ust_tracepoint_iter *iter)
+ struct lttng_ust_abi_tracepoint_iter *iter)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = tp_list_handle;
- lum.cmd = LTTNG_UST_TRACEPOINT_LIST_GET;
+ lum.cmd = LTTNG_UST_ABI_TRACEPOINT_LIST_GET;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
int ret, tp_field_list_handle;
memset(&lum, 0, sizeof(lum));
- lum.handle = LTTNG_UST_ROOT_HANDLE;
- lum.cmd = LTTNG_UST_TRACEPOINT_FIELD_LIST;
+ lum.handle = LTTNG_UST_ABI_ROOT_HANDLE;
+ lum.cmd = LTTNG_UST_ABI_TRACEPOINT_FIELD_LIST;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
}
int ustctl_tracepoint_field_list_get(int sock, int tp_field_list_handle,
- struct lttng_ust_field_iter *iter)
+ struct lttng_ust_abi_field_iter *iter)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = tp_field_list_handle;
- lum.cmd = LTTNG_UST_TRACEPOINT_FIELD_LIST_GET;
+ lum.cmd = LTTNG_UST_ABI_TRACEPOINT_FIELD_LIST_GET;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
return 0;
}
-int ustctl_tracer_version(int sock, struct lttng_ust_tracer_version *v)
+int ustctl_tracer_version(int sock, struct lttng_ust_abi_tracer_version *v)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
return -EINVAL;
memset(&lum, 0, sizeof(lum));
- lum.handle = LTTNG_UST_ROOT_HANDLE;
- lum.cmd = LTTNG_UST_TRACER_VERSION;
+ lum.handle = LTTNG_UST_ABI_ROOT_HANDLE;
+ lum.cmd = LTTNG_UST_ABI_TRACER_VERSION;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
int ret;
memset(&lum, 0, sizeof(lum));
- lum.handle = LTTNG_UST_ROOT_HANDLE;
- lum.cmd = LTTNG_UST_WAIT_QUIESCENT;
+ lum.handle = LTTNG_UST_ABI_ROOT_HANDLE;
+ lum.cmd = LTTNG_UST_ABI_WAIT_QUIESCENT;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
return 0;
}
-int ustctl_calibrate(int sock, struct lttng_ust_calibrate *calibrate)
+int ustctl_calibrate(int sock, struct lttng_ust_abi_calibrate *calibrate)
{
if (!calibrate)
return -EINVAL;
return -ENOSYS;
}
-int ustctl_sock_flush_buffer(int sock, struct lttng_ust_object_data *object)
+int ustctl_sock_flush_buffer(int sock, struct lttng_ust_abi_object_data *object)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = object->handle;
- lum.cmd = LTTNG_UST_FLUSH_BUFFER;
+ lum.cmd = LTTNG_UST_ABI_FLUSH_BUFFER;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
static
int ustctl_send_channel(int sock,
- enum lttng_ust_chan_type type,
+ enum lttng_ust_abi_chan_type type,
void *data,
uint64_t size,
int wakeup_fd,
}
int ustctl_recv_channel_from_consumer(int sock,
- struct lttng_ust_object_data **_channel_data)
+ struct lttng_ust_abi_object_data **_channel_data)
{
- struct lttng_ust_object_data *channel_data;
+ struct lttng_ust_abi_object_data *channel_data;
ssize_t len;
int wakeup_fd;
int ret;
ret = -ENOMEM;
goto error_alloc;
}
- channel_data->type = LTTNG_UST_OBJECT_TYPE_CHANNEL;
+ channel_data->type = LTTNG_UST_ABI_OBJECT_TYPE_CHANNEL;
channel_data->handle = -1;
/* recv mmap size */
}
int ustctl_recv_stream_from_consumer(int sock,
- struct lttng_ust_object_data **_stream_data)
+ struct lttng_ust_abi_object_data **_stream_data)
{
- struct lttng_ust_object_data *stream_data;
+ struct lttng_ust_abi_object_data *stream_data;
ssize_t len;
int ret;
int fds[2];
goto error_alloc;
}
- stream_data->type = LTTNG_UST_OBJECT_TYPE_STREAM;
+ stream_data->type = LTTNG_UST_ABI_OBJECT_TYPE_STREAM;
stream_data->handle = -1;
/* recv mmap size */
}
int ustctl_send_channel_to_ust(int sock, int session_handle,
- struct lttng_ust_object_data *channel_data)
+ struct lttng_ust_abi_object_data *channel_data)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = session_handle;
- lum.cmd = LTTNG_UST_CHANNEL;
+ lum.cmd = LTTNG_UST_ABI_CHANNEL;
lum.u.channel.len = channel_data->size;
lum.u.channel.type = channel_data->u.channel.type;
ret = ustcomm_send_app_msg(sock, &lum);
}
int ustctl_send_stream_to_ust(int sock,
- struct lttng_ust_object_data *channel_data,
- struct lttng_ust_object_data *stream_data)
+ struct lttng_ust_abi_object_data *channel_data,
+ struct lttng_ust_abi_object_data *stream_data)
{
struct ustcomm_ust_msg lum;
struct ustcomm_ust_reply lur;
memset(&lum, 0, sizeof(lum));
lum.handle = channel_data->handle;
- lum.cmd = LTTNG_UST_STREAM;
+ lum.cmd = LTTNG_UST_ABI_STREAM;
lum.u.stream.len = stream_data->size;
lum.u.stream.stream_nr = stream_data->u.stream.stream_nr;
ret = ustcomm_send_app_msg(sock, &lum);
return ret;
assert(stream_data);
- assert(stream_data->type == LTTNG_UST_OBJECT_TYPE_STREAM);
+ assert(stream_data->type == LTTNG_UST_ABI_OBJECT_TYPE_STREAM);
ret = ustctl_send_stream(sock,
stream_data->u.stream.stream_nr,
return ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
}
-int ustctl_duplicate_ust_object_data(struct lttng_ust_object_data **dest,
- struct lttng_ust_object_data *src)
+int ustctl_duplicate_ust_object_data(struct lttng_ust_abi_object_data **dest,
+ struct lttng_ust_abi_object_data *src)
{
- struct lttng_ust_object_data *obj;
+ struct lttng_ust_abi_object_data *obj;
int ret;
if (src->handle != -1) {
obj->size = src->size;
switch (obj->type) {
- case LTTNG_UST_OBJECT_TYPE_CHANNEL:
+ case LTTNG_UST_ABI_OBJECT_TYPE_CHANNEL:
{
obj->u.channel.type = src->u.channel.type;
if (src->u.channel.wakeup_fd >= 0) {
}
- case LTTNG_UST_OBJECT_TYPE_STREAM:
+ case LTTNG_UST_ABI_OBJECT_TYPE_STREAM:
{
obj->u.stream.stream_nr = src->u.stream.stream_nr;
if (src->u.stream.wakeup_fd >= 0) {
goto error_type;
}
+ case LTTNG_UST_ABI_OBJECT_TYPE_COUNTER:
+ {
+ obj->u.counter.data = zmalloc(obj->size);
+ if (!obj->u.counter.data) {
+ ret = -ENOMEM;
+ goto error_type;
+ }
+ memcpy(obj->u.counter.data, src->u.counter.data, obj->size);
+ break;
+ }
+
+ case LTTNG_UST_ABI_OBJECT_TYPE_COUNTER_GLOBAL:
+ {
+ if (src->u.counter_global.shm_fd >= 0) {
+ obj->u.counter_global.shm_fd =
+ dup(src->u.counter_global.shm_fd);
+ if (obj->u.counter_global.shm_fd < 0) {
+ ret = errno;
+ goto error_type;
+ }
+ }
+ break;
+ }
+
+ case LTTNG_UST_ABI_OBJECT_TYPE_COUNTER_CPU:
+ {
+ obj->u.counter_cpu.cpu_nr = src->u.counter_cpu.cpu_nr;
+ if (src->u.counter_cpu.shm_fd >= 0) {
+ obj->u.counter_cpu.shm_fd =
+ dup(src->u.counter_cpu.shm_fd);
+ if (obj->u.counter_cpu.shm_fd < 0) {
+ ret = errno;
+ goto error_type;
+ }
+ }
+ break;
+ }
+
default:
ret = -EINVAL;
goto error_type;
struct lttng_transport *transport;
switch (attr->type) {
- case LTTNG_UST_CHAN_PER_CPU:
- if (attr->output == LTTNG_UST_MMAP) {
+ case LTTNG_UST_ABI_CHAN_PER_CPU:
+ if (attr->output == LTTNG_UST_ABI_MMAP) {
if (attr->overwrite) {
if (attr->read_timer_interval == 0) {
transport_name = "relay-overwrite-mmap";
return NULL;
}
break;
- case LTTNG_UST_CHAN_METADATA:
- if (attr->output == LTTNG_UST_MMAP)
+ case LTTNG_UST_ABI_CHAN_METADATA:
+ if (attr->output == LTTNG_UST_ABI_MMAP)
transport_name = "relay-metadata-mmap";
else
return NULL;
return NULL;
}
- transport = lttng_transport_find(transport_name);
+ transport = lttng_ust_transport_find(transport_name);
if (!transport) {
DBG("LTTng transport %s not found\n",
transport_name);
if (!chan)
return NULL;
- chan->chan = transport->ops.channel_create(transport_name, NULL,
+ chan->chan = transport->ops.priv->channel_create(transport_name, NULL,
attr->subbuf_size, attr->num_subbuf,
attr->switch_timer_interval,
attr->read_timer_interval,
{
(void) ustctl_channel_close_wait_fd(chan);
(void) ustctl_channel_close_wakeup_fd(chan);
- chan->chan->ops->channel_destroy(chan->chan);
+ chan->chan->ops->priv->channel_destroy(chan->chan);
free(chan);
}
for (pos = 0; pos < len; pos += reserve_len) {
reserve_len = min_t(size_t,
- chan->ops->packet_avail_size(chan->chan, chan->handle),
+ chan->ops->priv->packet_avail_size(chan->chan, chan->handle),
len - pos);
lib_ring_buffer_ctx_init(&ctx, chan->chan, NULL, reserve_len,
- sizeof(char), -1, chan->handle, NULL);
+ sizeof(char), -1, chan->handle);
/*
* We don't care about metadata buffer's records lost
* count, because we always retry here. Report error if
int ret;
reserve_len = min_t(ssize_t,
- chan->ops->packet_avail_size(chan->chan, chan->handle),
+ chan->ops->priv->packet_avail_size(chan->chan, chan->handle),
len);
lib_ring_buffer_ctx_init(&ctx, chan->chan, NULL, reserve_len,
- sizeof(char), -1, chan->handle, NULL);
+ sizeof(char), -1, chan->handle);
ret = chan->ops->event_reserve(&ctx, 0);
if (ret != 0) {
DBG("LTTng: event reservation failed");
int ustctl_channel_close_wait_fd(struct ustctl_consumer_channel *consumer_chan)
{
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
int ret;
chan = consumer_chan->chan->chan;
int ustctl_channel_close_wakeup_fd(struct ustctl_consumer_channel *consumer_chan)
{
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
int ret;
chan = consumer_chan->chan->chan;
int ustctl_stream_close_wait_fd(struct ustctl_consumer_stream *stream)
{
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
chan = stream->chan->chan->chan;
return ring_buffer_stream_close_wait_fd(&chan->backend.config,
int ustctl_stream_close_wakeup_fd(struct ustctl_consumer_stream *stream)
{
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
chan = stream->chan->chan->chan;
return ring_buffer_stream_close_wakeup_fd(&chan->backend.config,
{
struct ustctl_consumer_stream *stream;
struct lttng_ust_shm_handle *handle;
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
int shm_fd, wait_fd, wakeup_fd;
uint64_t memory_map_size;
struct lttng_ust_lib_ring_buffer *buf;
{
struct ustctl_consumer_channel *consumer_chan;
unsigned long mmap_buf_len;
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
if (!stream)
return -EINVAL;
unsigned long *len)
{
struct ustctl_consumer_channel *consumer_chan;
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
if (!stream)
return -EINVAL;
int ustctl_get_mmap_read_offset(struct ustctl_consumer_stream *stream,
unsigned long *off)
{
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
unsigned long sb_bindex;
struct lttng_ust_lib_ring_buffer *buf;
struct ustctl_consumer_channel *consumer_chan;
unsigned long *len)
{
struct ustctl_consumer_channel *consumer_chan;
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
struct lttng_ust_lib_ring_buffer *buf;
if (!stream)
unsigned long *len)
{
struct ustctl_consumer_channel *consumer_chan;
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
struct lttng_ust_lib_ring_buffer *buf;
if (!stream)
struct lttng_ust_lib_ring_buffer *buf,
struct lttng_ust_shm_handle *handle)
{
- struct channel *chan;
+ struct lttng_ust_lib_ring_buffer_channel *chan;
const struct lttng_ust_lib_ring_buffer_config *config;
struct lttng_ust_client_lib_ring_buffer_client_cb *client_cb;
return client_cb->instance_id(buf, handle, id);
}
-#ifdef LTTNG_UST_HAVE_PERF_EVENT
+#ifdef HAVE_PERF_EVENT
int ustctl_has_perf_counters(void)
{
#endif
+#ifdef __linux__
+/*
+ * Override application pid/uid/gid with unix socket credentials. If
+ * the application announced a pid matching our view, it means it is
+ * within the same pid namespace, so expose the ppid provided by the
+ * application.
+ */
+static
+int get_cred(int sock,
+ const struct ustctl_reg_msg *reg_msg,
+ uint32_t *pid,
+ uint32_t *ppid,
+ uint32_t *uid,
+ uint32_t *gid)
+{
+ struct ucred ucred;
+ socklen_t ucred_len = sizeof(struct ucred);
+ int ret;
+
+ ret = getsockopt(sock, SOL_SOCKET, SO_PEERCRED, &ucred, &ucred_len);
+ if (ret) {
+ return -LTTNG_UST_ERR_PEERCRED;
+ }
+ DBG("Unix socket peercred [ pid: %u, uid: %u, gid: %u ], "
+ "application registered claiming [ pid: %u, ppid: %u, uid: %u, gid: %u ]",
+ ucred.pid, ucred.uid, ucred.gid,
+ reg_msg->pid, reg_msg->ppid, reg_msg->uid, reg_msg->gid);
+ if (!ucred.pid) {
+ ERR("Unix socket credential pid=0. Refusing application in distinct, non-nested pid namespace.");
+ return -LTTNG_UST_ERR_PEERCRED_PID;
+ }
+ *pid = ucred.pid;
+ *uid = ucred.uid;
+ *gid = ucred.gid;
+ if (ucred.pid == reg_msg->pid) {
+ *ppid = reg_msg->ppid;
+ } else {
+ *ppid = 0;
+ }
+ return 0;
+}
+#elif defined(__FreeBSD__)
+#include <sys/ucred.h>
+#include <sys/un.h>
+
+/*
+ * Override application uid/gid with unix socket credentials. Use the
+ * first group of the cr_groups.
+ * Use the pid and ppid provided by the application on registration.
+ */
+static
+int get_cred(int sock,
+ const struct ustctl_reg_msg *reg_msg,
+ uint32_t *pid,
+ uint32_t *ppid,
+ uint32_t *uid,
+ uint32_t *gid)
+{
+ struct xucred xucred;
+ socklen_t xucred_len = sizeof(struct xucred);
+ int ret;
+
+ ret = getsockopt(sock, SOL_SOCKET, LOCAL_PEERCRED, &xucred, &xucred_len);
+ if (ret) {
+ return -LTTNG_UST_ERR_PEERCRED;
+ }
+ if (xucred.cr_version != XUCRED_VERSION || xucred.cr_ngroups < 1) {
+ return -LTTNG_UST_ERR_PEERCRED;
+ }
+ DBG("Unix socket peercred [ uid: %u, gid: %u ], "
+ "application registered claiming [ pid: %d, ppid: %d, uid: %u, gid: %u ]",
+ xucred.cr_uid, xucred.cr_groups[0],
+ reg_msg->pid, reg_msg->ppid, reg_msg->uid, reg_msg->gid);
+ *pid = reg_msg->pid;
+ *ppid = reg_msg->ppid;
+ *uid = xucred.cr_uid;
+ *gid = xucred.cr_groups[0];
+ return 0;
+}
+#else
+#warning "Using insecure fallback: trusting user id provided by registered applications. Please consider implementing use of unix socket credentials on your platform."
+static
+int get_cred(int sock,
+ const struct ustctl_reg_msg *reg_msg,
+ uint32_t *pid,
+ uint32_t *ppid,
+ uint32_t *uid,
+ uint32_t *gid)
+{
+ DBG("Application registered claiming [ pid: %u, ppid: %d, uid: %u, gid: %u ]",
+ reg_msg->pid, reg_msg->ppid, reg_msg->uid, reg_msg->gid);
+ *pid = reg_msg->pid;
+ *ppid = reg_msg->ppid;
+ *uid = reg_msg->uid;
+ *gid = reg_msg->gid;
+ return 0;
+}
+#endif
+
/*
* Returns 0 on success, negative error value on error.
*/
if (len < 0)
return len;
- if (reg_msg.magic == LTTNG_UST_COMM_MAGIC) {
+ if (reg_msg.magic == LTTNG_UST_ABI_COMM_MAGIC) {
*byte_order = BYTE_ORDER == BIG_ENDIAN ?
BIG_ENDIAN : LITTLE_ENDIAN;
- } else if (reg_msg.magic == bswap_32(LTTNG_UST_COMM_MAGIC)) {
+ } else if (reg_msg.magic == bswap_32(LTTNG_UST_ABI_COMM_MAGIC)) {
*byte_order = BYTE_ORDER == BIG_ENDIAN ?
LITTLE_ENDIAN : BIG_ENDIAN;
} else {
}
*major = reg_msg.major;
*minor = reg_msg.minor;
- *pid = reg_msg.pid;
- *ppid = reg_msg.ppid;
- *uid = reg_msg.uid;
- *gid = reg_msg.gid;
*bits_per_long = reg_msg.bits_per_long;
*uint8_t_alignment = reg_msg.uint8_t_alignment;
*uint16_t_alignment = reg_msg.uint16_t_alignment;
reg_msg.major > LTTNG_UST_ABI_MAJOR_VERSION) {
return -LTTNG_UST_ERR_UNSUP_MAJOR;
}
-
- return 0;
+ return get_cred(sock, ®_msg, pid, ppid, uid, gid);
}
int ustctl_recv_notify(int sock, enum ustctl_notify_cmd *notify_cmd)
*session_objd = msg.session_objd;
*channel_objd = msg.channel_objd;
- strncpy(event_name, msg.event_name, LTTNG_UST_SYM_NAME_LEN);
- event_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
+ strncpy(event_name, msg.event_name, LTTNG_UST_ABI_SYM_NAME_LEN);
+ event_name[LTTNG_UST_ABI_SYM_NAME_LEN - 1] = '\0';
*loglevel = msg.loglevel;
signature_len = msg.signature_len;
fields_len = msg.fields_len;
return len;
*session_objd = msg.session_objd;
- strncpy(enum_name, msg.enum_name, LTTNG_UST_SYM_NAME_LEN);
- enum_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
+ strncpy(enum_name, msg.enum_name, LTTNG_UST_ABI_SYM_NAME_LEN);
+ enum_name[LTTNG_UST_ABI_SYM_NAME_LEN - 1] = '\0';
entries_len = msg.entries_len;
if (entries_len % sizeof(*a_entries) != 0) {
memset(&lum, 0, sizeof(lum));
lum.handle = handle;
- lum.cmd = LTTNG_UST_SESSION_STATEDUMP;
+ lum.cmd = LTTNG_UST_ABI_SESSION_STATEDUMP;
ret = ustcomm_send_app_cmd(sock, &lum, &lur);
if (ret)
return ret;
return 0;
}
+/* counter operations */
+
+int ustctl_get_nr_cpu_per_counter(void)
+{
+ return lttng_counter_num_possible_cpus();
+}
+
+struct ustctl_daemon_counter *
+ ustctl_create_counter(size_t nr_dimensions,
+ const struct ustctl_counter_dimension *dimensions,
+ int64_t global_sum_step,
+ int global_counter_fd,
+ int nr_counter_cpu_fds,
+ const int *counter_cpu_fds,
+ enum ustctl_counter_bitness bitness,
+ enum ustctl_counter_arithmetic arithmetic,
+ uint32_t alloc_flags,
+ bool coalesce_hits)
+{
+ const char *transport_name;
+ struct ustctl_daemon_counter *counter;
+ struct lttng_counter_transport *transport;
+ struct lttng_counter_dimension ust_dim[LTTNG_COUNTER_DIMENSION_MAX];
+ size_t i;
+
+ if (nr_dimensions > LTTNG_COUNTER_DIMENSION_MAX)
+ return NULL;
+ /* Currently, only per-cpu allocation is supported. */
+ switch (alloc_flags) {
+ case USTCTL_COUNTER_ALLOC_PER_CPU:
+ break;
+
+ case USTCTL_COUNTER_ALLOC_PER_CPU | USTCTL_COUNTER_ALLOC_GLOBAL:
+ case USTCTL_COUNTER_ALLOC_GLOBAL:
+ default:
+ return NULL;
+ }
+ switch (bitness) {
+ case USTCTL_COUNTER_BITNESS_32:
+ switch (arithmetic) {
+ case USTCTL_COUNTER_ARITHMETIC_MODULAR:
+ transport_name = "counter-per-cpu-32-modular";
+ break;
+ case USTCTL_COUNTER_ARITHMETIC_SATURATION:
+ transport_name = "counter-per-cpu-32-saturation";
+ break;
+ default:
+ return NULL;
+ }
+ break;
+ case USTCTL_COUNTER_BITNESS_64:
+ switch (arithmetic) {
+ case USTCTL_COUNTER_ARITHMETIC_MODULAR:
+ transport_name = "counter-per-cpu-64-modular";
+ break;
+ case USTCTL_COUNTER_ARITHMETIC_SATURATION:
+ transport_name = "counter-per-cpu-64-saturation";
+ break;
+ default:
+ return NULL;
+ }
+ break;
+ default:
+ return NULL;
+ }
+
+ transport = lttng_counter_transport_find(transport_name);
+ if (!transport) {
+ DBG("LTTng transport %s not found\n",
+ transport_name);
+ return NULL;
+ }
+
+ counter = zmalloc(sizeof(*counter));
+ if (!counter)
+ return NULL;
+ counter->attr = zmalloc(sizeof(*counter->attr));
+ if (!counter->attr)
+ goto free_counter;
+ counter->attr->bitness = bitness;
+ counter->attr->arithmetic = arithmetic;
+ counter->attr->nr_dimensions = nr_dimensions;
+ counter->attr->global_sum_step = global_sum_step;
+ counter->attr->coalesce_hits = coalesce_hits;
+ for (i = 0; i < nr_dimensions; i++)
+ counter->attr->dimensions[i] = dimensions[i];
+
+ for (i = 0; i < nr_dimensions; i++) {
+ ust_dim[i].size = dimensions[i].size;
+ ust_dim[i].underflow_index = dimensions[i].underflow_index;
+ ust_dim[i].overflow_index = dimensions[i].overflow_index;
+ ust_dim[i].has_underflow = dimensions[i].has_underflow;
+ ust_dim[i].has_overflow = dimensions[i].has_overflow;
+ }
+ counter->counter = transport->ops.counter_create(nr_dimensions,
+ ust_dim, global_sum_step, global_counter_fd,
+ nr_counter_cpu_fds, counter_cpu_fds, true);
+ if (!counter->counter)
+ goto free_attr;
+ counter->ops = &transport->ops;
+ return counter;
+
+free_attr:
+ free(counter->attr);
+free_counter:
+ free(counter);
+ return NULL;
+}
+
+int ustctl_create_counter_data(struct ustctl_daemon_counter *counter,
+ struct lttng_ust_abi_object_data **_counter_data)
+{
+ struct lttng_ust_abi_object_data *counter_data;
+ struct lttng_ust_abi_counter_conf counter_conf = {0};
+ size_t i;
+ int ret;
+
+ switch (counter->attr->arithmetic) {
+ case USTCTL_COUNTER_ARITHMETIC_MODULAR:
+ counter_conf.arithmetic = LTTNG_UST_ABI_COUNTER_ARITHMETIC_MODULAR;
+ break;
+ case USTCTL_COUNTER_ARITHMETIC_SATURATION:
+ counter_conf.arithmetic = LTTNG_UST_ABI_COUNTER_ARITHMETIC_SATURATION;
+ break;
+ default:
+ return -EINVAL;
+ }
+ switch (counter->attr->bitness) {
+ case USTCTL_COUNTER_BITNESS_32:
+ counter_conf.bitness = LTTNG_UST_ABI_COUNTER_BITNESS_32;
+ break;
+ case USTCTL_COUNTER_BITNESS_64:
+ counter_conf.bitness = LTTNG_UST_ABI_COUNTER_BITNESS_64;
+ break;
+ default:
+ return -EINVAL;
+ }
+ counter_conf.number_dimensions = counter->attr->nr_dimensions;
+ counter_conf.global_sum_step = counter->attr->global_sum_step;
+ counter_conf.coalesce_hits = counter->attr->coalesce_hits;
+ for (i = 0; i < counter->attr->nr_dimensions; i++) {
+ counter_conf.dimensions[i].size = counter->attr->dimensions[i].size;
+ counter_conf.dimensions[i].underflow_index = counter->attr->dimensions[i].underflow_index;
+ counter_conf.dimensions[i].overflow_index = counter->attr->dimensions[i].overflow_index;
+ counter_conf.dimensions[i].has_underflow = counter->attr->dimensions[i].has_underflow;
+ counter_conf.dimensions[i].has_overflow = counter->attr->dimensions[i].has_overflow;
+ }
+
+ counter_data = zmalloc(sizeof(*counter_data));
+ if (!counter_data) {
+ ret = -ENOMEM;
+ goto error_alloc;
+ }
+ counter_data->type = LTTNG_UST_ABI_OBJECT_TYPE_COUNTER;
+ counter_data->handle = -1;
+
+ counter_data->size = sizeof(counter_conf);
+ counter_data->u.counter.data = zmalloc(sizeof(counter_conf));
+ if (!counter_data->u.counter.data) {
+ ret = -ENOMEM;
+ goto error_alloc_data;
+ }
+
+ memcpy(counter_data->u.counter.data, &counter_conf, sizeof(counter_conf));
+ *_counter_data = counter_data;
+
+ return 0;
+
+error_alloc_data:
+ free(counter_data);
+error_alloc:
+ return ret;
+}
+
+int ustctl_create_counter_global_data(struct ustctl_daemon_counter *counter,
+ struct lttng_ust_abi_object_data **_counter_global_data)
+{
+ struct lttng_ust_abi_object_data *counter_global_data;
+ int ret, fd;
+ size_t len;
+
+ if (lttng_counter_get_global_shm(counter->counter, &fd, &len))
+ return -EINVAL;
+ counter_global_data = zmalloc(sizeof(*counter_global_data));
+ if (!counter_global_data) {
+ ret = -ENOMEM;
+ goto error_alloc;
+ }
+ counter_global_data->type = LTTNG_UST_ABI_OBJECT_TYPE_COUNTER_GLOBAL;
+ counter_global_data->handle = -1;
+ counter_global_data->size = len;
+ counter_global_data->u.counter_global.shm_fd = fd;
+ *_counter_global_data = counter_global_data;
+ return 0;
+
+error_alloc:
+ return ret;
+}
+
+int ustctl_create_counter_cpu_data(struct ustctl_daemon_counter *counter, int cpu,
+ struct lttng_ust_abi_object_data **_counter_cpu_data)
+{
+ struct lttng_ust_abi_object_data *counter_cpu_data;
+ int ret, fd;
+ size_t len;
+
+ if (lttng_counter_get_cpu_shm(counter->counter, cpu, &fd, &len))
+ return -EINVAL;
+ counter_cpu_data = zmalloc(sizeof(*counter_cpu_data));
+ if (!counter_cpu_data) {
+ ret = -ENOMEM;
+ goto error_alloc;
+ }
+ counter_cpu_data->type = LTTNG_UST_ABI_OBJECT_TYPE_COUNTER_CPU;
+ counter_cpu_data->handle = -1;
+ counter_cpu_data->size = len;
+ counter_cpu_data->u.counter_cpu.shm_fd = fd;
+ counter_cpu_data->u.counter_cpu.cpu_nr = cpu;
+ *_counter_cpu_data = counter_cpu_data;
+ return 0;
+
+error_alloc:
+ return ret;
+}
+
+void ustctl_destroy_counter(struct ustctl_daemon_counter *counter)
+{
+ counter->ops->counter_destroy(counter->counter);
+ free(counter->attr);
+ free(counter);
+}
+
+int ustctl_send_counter_data_to_ust(int sock, int parent_handle,
+ struct lttng_ust_abi_object_data *counter_data)
+{
+ struct ustcomm_ust_msg lum;
+ struct ustcomm_ust_reply lur;
+ int ret;
+ size_t size;
+ ssize_t len;
+
+ if (!counter_data)
+ return -EINVAL;
+
+ size = counter_data->size;
+ memset(&lum, 0, sizeof(lum));
+ lum.handle = parent_handle;
+ lum.cmd = LTTNG_UST_ABI_COUNTER;
+ lum.u.counter.len = size;
+ ret = ustcomm_send_app_msg(sock, &lum);
+ if (ret)
+ return ret;
+
+ /* Send counter data */
+ len = ustcomm_send_unix_sock(sock, counter_data->u.counter.data, size);
+ if (len != size) {
+ if (len < 0)
+ return len;
+ else
+ return -EIO;
+ }
+
+ ret = ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
+ if (!ret) {
+ counter_data->handle = lur.ret_val;
+ }
+ return ret;
+}
+
+int ustctl_send_counter_global_data_to_ust(int sock,
+ struct lttng_ust_abi_object_data *counter_data,
+ struct lttng_ust_abi_object_data *counter_global_data)
+{
+ struct ustcomm_ust_msg lum;
+ struct ustcomm_ust_reply lur;
+ int ret, shm_fd[1];
+ size_t size;
+ ssize_t len;
+
+ if (!counter_data || !counter_global_data)
+ return -EINVAL;
+
+ size = counter_global_data->size;
+ memset(&lum, 0, sizeof(lum));
+ lum.handle = counter_data->handle; /* parent handle */
+ lum.cmd = LTTNG_UST_ABI_COUNTER_GLOBAL;
+ lum.u.counter_global.len = size;
+ ret = ustcomm_send_app_msg(sock, &lum);
+ if (ret)
+ return ret;
+
+ shm_fd[0] = counter_global_data->u.counter_global.shm_fd;
+ len = ustcomm_send_fds_unix_sock(sock, shm_fd, 1);
+ if (len <= 0) {
+ if (len < 0)
+ return len;
+ else
+ return -EIO;
+ }
+
+ ret = ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
+ if (!ret) {
+ counter_global_data->handle = lur.ret_val;
+ }
+ return ret;
+}
+
+int ustctl_send_counter_cpu_data_to_ust(int sock,
+ struct lttng_ust_abi_object_data *counter_data,
+ struct lttng_ust_abi_object_data *counter_cpu_data)
+{
+ struct ustcomm_ust_msg lum;
+ struct ustcomm_ust_reply lur;
+ int ret, shm_fd[1];
+ size_t size;
+ ssize_t len;
+
+ if (!counter_data || !counter_cpu_data)
+ return -EINVAL;
+
+ size = counter_cpu_data->size;
+ memset(&lum, 0, sizeof(lum));
+ lum.handle = counter_data->handle; /* parent handle */
+ lum.cmd = LTTNG_UST_ABI_COUNTER_CPU;
+ lum.u.counter_cpu.len = size;
+ lum.u.counter_cpu.cpu_nr = counter_cpu_data->u.counter_cpu.cpu_nr;
+ ret = ustcomm_send_app_msg(sock, &lum);
+ if (ret)
+ return ret;
+
+ shm_fd[0] = counter_cpu_data->u.counter_global.shm_fd;
+ len = ustcomm_send_fds_unix_sock(sock, shm_fd, 1);
+ if (len <= 0) {
+ if (len < 0)
+ return len;
+ else
+ return -EIO;
+ }
+
+ ret = ustcomm_recv_app_reply(sock, &lur, lum.handle, lum.cmd);
+ if (!ret) {
+ counter_cpu_data->handle = lur.ret_val;
+ }
+ return ret;
+}
+
+int ustctl_counter_read(struct ustctl_daemon_counter *counter,
+ const size_t *dimension_indexes,
+ int cpu, int64_t *value,
+ bool *overflow, bool *underflow)
+{
+ return counter->ops->counter_read(counter->counter, dimension_indexes, cpu,
+ value, overflow, underflow);
+}
+
+int ustctl_counter_aggregate(struct ustctl_daemon_counter *counter,
+ const size_t *dimension_indexes,
+ int64_t *value,
+ bool *overflow, bool *underflow)
+{
+ return counter->ops->counter_aggregate(counter->counter, dimension_indexes,
+ value, overflow, underflow);
+}
+
+int ustctl_counter_clear(struct ustctl_daemon_counter *counter,
+ const size_t *dimension_indexes)
+{
+ return counter->ops->counter_clear(counter->counter, dimension_indexes);
+}
+
static __attribute__((constructor))
void ustctl_init(void)
{
- init_usterr();
- lttng_ust_getenv_init(); /* Needs init_usterr() to be completed. */
+ ust_err_init();
+ lttng_ust_getenv_init(); /* Needs ust_err_init() to be completed. */
lttng_ust_clock_init();
lttng_ring_buffer_metadata_client_init();
lttng_ring_buffer_client_overwrite_init();
lttng_ring_buffer_client_overwrite_rt_init();
lttng_ring_buffer_client_discard_init();
lttng_ring_buffer_client_discard_rt_init();
+ lttng_counter_client_percpu_32_modular_init();
+ lttng_counter_client_percpu_64_modular_init();
lib_ringbuffer_signal_init();
}
lttng_ring_buffer_client_overwrite_rt_exit();
lttng_ring_buffer_client_overwrite_exit();
lttng_ring_buffer_metadata_client_exit();
+ lttng_counter_client_percpu_32_modular_exit();
+ lttng_counter_client_percpu_64_modular_exit();
}
projects / lttng-ust.git / blobdiff