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Cleanup: tp mempool: Remove logically dead code
[lttng-modules.git] / probes / lttng-tracepoint-event-impl.h
diff --git a/probes/lttng-tracepoint-event-impl.h b/probes/lttng-tracepoint-event-impl.h
index ed7072cf19377973de61f38e12b0547a1bf13d36..3fe9d995cf310bbc9d15b794b92892dd475c9afd 100644 (file)
--- a/probes/lttng-tracepoint-event-impl.h
+++ b/probes/lttng-tracepoint-event-impl.h
@@ -1,22 +1,9 @@
-/*
+/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1)
+ *
  * lttng-tracepoint-event-impl.h
  *
  * Copyright (C) 2009 Steven Rostedt <rostedt@goodmis.org>
  * Copyright (C) 2009-2014 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/uaccess.h>
@@ -34,6 +21,7 @@
 #include <wrapper/rcu.h>
 #include <lttng-events.h>
 #include <lttng-tracer-core.h>
+#include <lttng-tp-mempool.h>
 
 #define __LTTNG_NULL_STRING    "(null)"
 
@@ -222,6 +210,24 @@ void __event_template_proto___##_name(void);
                .string = (_string),                                    \
        },
 
+/* Enumeration entry (automatic value; follows the rules of CTF) */
+#undef ctf_enum_auto
+#define ctf_enum_auto(_string)                                 \
+       {                                                               \
+               .start = {                                              \
+                       .signedness = -1,                               \
+                       .value = -1,                                    \
+               },                                                      \
+               .end = {                                                \
+                       .signedness = -1,                               \
+                       .value = -1,                                    \
+               },                                                      \
+               .string = (_string),                                    \
+               .options = {                                            \
+                       .is_auto = 1,                                   \
+               }                                                       \
+       },
+
 #undef TP_ENUM_VALUES
 #define TP_ENUM_VALUES(...)                                            \
        __VA_ARGS__
@@ -256,7 +262,7 @@ void __event_template_proto___##_name(void);
        },
 
 #undef _ctf_array_encoded
-#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
+#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _byte_order, _base, _user, _nowrite) \
        {                                                       \
          .name = #_item,                                       \
          .type =                                               \
@@ -266,7 +272,7 @@ void __event_template_proto___##_name(void);
                        {                                       \
                          .array =                              \
                                {                               \
-                                 .elem_type = __type_integer(_type, 0, 0, 0, __BYTE_ORDER, 10, _encoding), \
+                                 .elem_type = __type_integer(_type, 0, 0, 0, _byte_order, _base, _encoding), \
                                  .length = _length,            \
                                }                               \
                        }                                       \
@@ -281,7 +287,7 @@ void __event_template_proto___##_name(void);
          .name = #_item,                                       \
          .type =                                               \
                {                                               \
-                 .atype = atype_array,                         \
+                 .atype = atype_array_bitfield,                \
                  .u =                                          \
                        {                                       \
                          .array =                              \
@@ -327,7 +333,7 @@ void __event_template_proto___##_name(void);
          .name = #_item,                                       \
          .type =                                               \
                {                                               \
-                 .atype = atype_sequence,                      \
+                 .atype = atype_sequence_bitfield,             \
                  .u =                                          \
                        {                                       \
                          .sequence =                           \
@@ -457,13 +463,13 @@ static void __event_probe__##_name(void *__data);
        __event_len += sizeof(_type);
 
 #undef _ctf_array_encoded
-#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
+#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _byte_order, _base, _user, _nowrite) \
        __event_len += lib_ring_buffer_align(__event_len, lttng_alignof(_type)); \
        __event_len += sizeof(_type) * (_length);
 
 #undef _ctf_array_bitfield
 #define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
-       _ctf_array_encoded(_type, _item, _src, _length, none, _user, _nowrite)
+       _ctf_array_encoded(_type, _item, _src, _length, none, __LITTLE_ENDIAN, 0, _user, _nowrite)
 
 #undef _ctf_sequence_encoded
 #define _ctf_sequence_encoded(_type, _item, _src, _length_type,                        \
@@ -679,7 +685,7 @@ error:                                                                            \
        _ctf_integer_ext_isuser##_user(_type, _item, _user_src, _byte_order, _base, _nowrite)
 
 #undef _ctf_array_encoded
-#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
+#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _byte_order, _base, _user, _nowrite) \
        {                                                                      \
                unsigned long __ctf_tmp_ulong = (unsigned long) (_length);     \
                const void *__ctf_tmp_ptr = (_src);                            \
@@ -691,7 +697,7 @@ error:                                                                            \
 
 #undef _ctf_array_bitfield
 #define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
-       _ctf_array_encoded(_type, _item, _src, _length, none, _user, _nowrite)
+       _ctf_array_encoded(_type, _item, _src, _length, none, __LITTLE_ENDIAN, 0, _user, _nowrite)
 
 #undef _ctf_sequence_encoded
 #define _ctf_sequence_encoded(_type, _item, _src, _length_type,                       \
@@ -773,12 +779,12 @@ void __event_prepare_filter_stack__##_name(char *__stack_data,                  \
        __event_align = max_t(size_t, __event_align, lttng_alignof(_type));
 
 #undef _ctf_array_encoded
-#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
+#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _byte_order, _base, _user, _nowrite) \
        __event_align = max_t(size_t, __event_align, lttng_alignof(_type));
 
 #undef _ctf_array_bitfield
 #define _ctf_array_bitfield(_type, _item, _src, _length, _user, _nowrite) \
-       _ctf_array_encoded(_type, _item, _src, _length, none, _user, _nowrite)
+       _ctf_array_encoded(_type, _item, _src, _length, none, __LITTLE_ENDIAN, 0, _user, _nowrite)
 
 #undef _ctf_sequence_encoded
 #define _ctf_sequence_encoded(_type, _item, _src, _length_type,                        \
@@ -887,7 +893,7 @@ static inline size_t __event_get_align__##_name(void *__tp_locvar)        \
        _ctf_integer_ext_isuser##_user(_type, _item, _user_src, _byte_order, _base, _nowrite)
 
 #undef _ctf_array_encoded
-#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _user, _nowrite) \
+#define _ctf_array_encoded(_type, _item, _src, _length, _encoding, _byte_order, _base, _user, _nowrite) \
        lib_ring_buffer_align_ctx(&__ctx, lttng_alignof(_type));        \
        if (_user) {                                                    \
                __chan->ops->event_write_from_user(&__ctx, _src, sizeof(_type) * (_length)); \
@@ -1112,7 +1118,7 @@ static void __event_probe__##_name(void *__data, _proto)                \
        struct lib_ring_buffer_ctx __ctx;                                     \
        ssize_t __event_len;                                                  \
        size_t __event_align;                                                 \
-       size_t __orig_dynamic_len_offset, __dynamic_len_idx;                  \
+       size_t __orig_dynamic_len_offset, __dynamic_len_idx __attribute__((unused)); \
        union {                                                               \
                size_t __dynamic_len_removed[ARRAY_SIZE(__event_fields___##_name)];   \
                char __filter_stack_data[2 * sizeof(unsigned long) * ARRAY_SIZE(__event_fields___##_name)]; \
@@ -1125,14 +1131,14 @@ static void __event_probe__##_name(void *__data, _proto)                      \
                                                                              \
        if (!_TP_SESSION_CHECK(session, __session))                           \
                return;                                                       \
-       if (unlikely(!ACCESS_ONCE(__session->active)))                        \
+       if (unlikely(!READ_ONCE(__session->active)))                          \
                return;                                                       \
-       if (unlikely(!ACCESS_ONCE(__chan->enabled)))                          \
+       if (unlikely(!READ_ONCE(__chan->enabled)))                            \
                return;                                                       \
-       if (unlikely(!ACCESS_ONCE(__event->enabled)))                         \
+       if (unlikely(!READ_ONCE(__event->enabled)))                           \
                return;                                                       \
        __lpf = lttng_rcu_dereference(__session->pid_tracker);                \
-       if (__lpf && likely(!lttng_pid_tracker_lookup(__lpf, current->pid)))  \
+       if (__lpf && likely(!lttng_pid_tracker_lookup(__lpf, current->tgid))) \
                return;                                                       \
        __orig_dynamic_len_offset = this_cpu_ptr(&lttng_dynamic_len_stack)->offset; \
        __dynamic_len_idx = __orig_dynamic_len_offset;                        \
@@ -1186,7 +1192,7 @@ static void __event_probe__##_name(void *__data)                        \
        struct lib_ring_buffer_ctx __ctx;                                     \
        ssize_t __event_len;                                                  \
        size_t __event_align;                                                 \
-       size_t __orig_dynamic_len_offset, __dynamic_len_idx;                  \
+       size_t __orig_dynamic_len_offset, __dynamic_len_idx __attribute__((unused)); \
        union {                                                               \
                size_t __dynamic_len_removed[ARRAY_SIZE(__event_fields___##_name)];   \
                char __filter_stack_data[2 * sizeof(unsigned long) * ARRAY_SIZE(__event_fields___##_name)]; \
@@ -1199,14 +1205,14 @@ static void __event_probe__##_name(void *__data)                              \
                                                                              \
        if (!_TP_SESSION_CHECK(session, __session))                           \
                return;                                                       \
-       if (unlikely(!ACCESS_ONCE(__session->active)))                        \
+       if (unlikely(!READ_ONCE(__session->active)))                          \
                return;                                                       \
-       if (unlikely(!ACCESS_ONCE(__chan->enabled)))                          \
+       if (unlikely(!READ_ONCE(__chan->enabled)))                            \
                return;                                                       \
-       if (unlikely(!ACCESS_ONCE(__event->enabled)))                         \
+       if (unlikely(!READ_ONCE(__event->enabled)))                           \
                return;                                                       \
        __lpf = lttng_rcu_dereference(__session->pid_tracker);                \
-       if (__lpf && likely(!lttng_pid_tracker_lookup(__lpf, current->pid)))  \
+       if (__lpf && likely(!lttng_pid_tracker_lookup(__lpf, current->tgid)))  \
                return;                                                       \
        __orig_dynamic_len_offset = this_cpu_ptr(&lttng_dynamic_len_stack)->offset; \
        __dynamic_len_idx = __orig_dynamic_len_offset;                        \
LTTng 2.0/0.x modules
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