PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \
/*
- * Stage 0.1 of the trace events.
+ * Stage 1 of the trace events.
*
* Create dummy trace calls for each events, verifying that the LTTng module
* TRACE_EVENT headers match the kernel arguments. Will be optimized out by the
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
/*
- * Stage 1 of the trace events.
+ * Stage 2 of the trace events.
*
* Create event field type metadata section.
* Each event produce an array of fields.
#undef __field
#define __field(_type, _item) \
- { .name = #_item, .type = { .atype = atype_integer, .name = #_type} },
+ { \
+ .name = #_item, \
+ .type = __type_integer(_type, __BYTE_ORDER), \
+ },
#undef __field_ext
#define __field_ext(_type, _item, _filter_type) __field(_type, _item)
+#undef __field_network
+#define __field_network(_type, _item) \
+ { \
+ .name = #_item, \
+ .type = __type_integer(_type, __BIG_ENDIAN), \
+ },
+
#undef __array
#define __array(_type, _item, _length) \
{ \
- .name = #_item, \
- .type = { \
+ .name = #_item, \
+ .type = \
+ { \
.atype = atype_array, \
- .name = NULL, \
- .u.array.elem_type = #_type, \
- .u.array.length = _length, \
+ .u.array = \
+ { \
+ .length = _length, \
+ .elem_type = __type_integer(_type, __BYTE_ORDER), \
+ }, \
}, \
},
#undef __dynamic_array
#define __dynamic_array(_type, _item, _length) \
{ \
- .name = #_item, \
- .type = { \
+ .name = #_item, \
+ .type = \
+ { \
.atype = atype_sequence, \
- .name = NULL, \
- .u.sequence.elem_type = #_type, \
- .u.sequence.length_type = "u32", \
+ .u.sequence = \
+ { \
+ .length_type = __type_integer(u32, __BYTE_ORDER), \
+ .elem_type = __type_integer(_type, __BYTE_ORDER), \
+ }, \
}, \
},
#undef __string
#define __string(_item, _src) \
{ \
- .name = #_item, \
- .type = { \
+ .name = #_item, \
+ .type = \
+ { \
.atype = atype_string, \
- .name = NULL, \
- .u.string.encoding = lttng_encode_UTF8, \
+ .u.basic.string.encoding = lttng_encode_UTF8, \
}, \
},
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+#undef __type_integer
+
/*
- * Stage 1.1 of the trace events.
+ * Stage 3 of the trace events.
*
* Create probe callback prototypes.
*/
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
/*
- * Stage 2 of the trace events.
+ * Stage 4 of the trace events.
*
* Create an array of events.
*/
/*
- * Stage 2.1 of the trace events.
+ * Stage 5 of the trace events.
*
* Create a toplevel descriptor for the whole probe.
*/
#undef TP_ID
/*
- * Stage 3 of the trace events.
- *
- * Create seq file metadata output.
- */
-
-#define TP_ID1(_token, _system) _token##_system
-#define TP_ID(_token, _system) TP_ID1(_token, _system)
-
-static void *TP_ID(__lttng_seq_start__, TRACE_SYSTEM)(struct seq_file *m,
- loff_t *pos)
-{
- const struct lttng_event_desc *desc =
- &TP_ID(__event_desc___, TRACE_SYSTEM)[*pos];
-
- if (desc > &TP_ID(__event_desc___, TRACE_SYSTEM)
- [ARRAY_SIZE(TP_ID(__event_desc___, TRACE_SYSTEM)) - 1])
- return NULL;
- return (void *) desc;
-}
-
-static void *TP_ID(__lttng_seq_next__, TRACE_SYSTEM)(struct seq_file *m,
- void *p, loff_t *ppos)
-{
- const struct lttng_event_desc *desc =
- &TP_ID(__event_desc___, TRACE_SYSTEM)[++(*ppos)];
-
- if (desc > &TP_ID(__event_desc___, TRACE_SYSTEM)
- [ARRAY_SIZE(TP_ID(__event_desc___, TRACE_SYSTEM)) - 1])
- return NULL;
- return (void *) desc;
-}
-
-static void TP_ID(__lttng_seq_stop__, TRACE_SYSTEM)(struct seq_file *m,
- void *p)
-{
-}
-
-static int TP_ID(__lttng_seq_show__, TRACE_SYSTEM)(struct seq_file *m,
- void *p)
-{
- const struct lttng_event_desc *desc = p;
- int i;
-
- seq_printf(m, "event {\n"
- "\tname = %s;\n"
- "\tid = UNKNOWN;\n"
- "\tstream = UNKNOWN;\n"
- "\tfields = {\n",
- desc->name);
- for (i = 0; i < desc->nr_fields; i++) {
- if (desc->fields[i].type.name) /* Named type */
- seq_printf(m, "\t\t%s",
- desc->fields[i].type.name);
- else /* Nameless type */
- lttng_print_event_type(m, 2, &desc->fields[i].type);
- seq_printf(m, " %s;\n", desc->fields[i].name);
- }
- seq_printf(m, "\t};\n");
- seq_printf(m, "};\n");
- return 0;
-}
-
-static const
-struct seq_operations TP_ID(__lttng_types_seq_ops__, TRACE_SYSTEM) = {
- .start = TP_ID(__lttng_seq_start__, TRACE_SYSTEM),
- .next = TP_ID(__lttng_seq_next__, TRACE_SYSTEM),
- .stop = TP_ID(__lttng_seq_stop__, TRACE_SYSTEM),
- .show = TP_ID(__lttng_seq_show__, TRACE_SYSTEM),
-};
-
-static int
-TP_ID(__lttng_types_open__, TRACE_SYSTEM)(struct inode *inode, struct file *file)
-{
- return seq_open(file, &TP_ID(__lttng_types_seq_ops__, TRACE_SYSTEM));
-}
-
-static const
-struct file_operations TP_ID(__lttng_types_fops__, TRACE_SYSTEM) = {
- .open = TP_ID(__lttng_types_open__, TRACE_SYSTEM),
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_private,
-};
-
-static struct dentry *TP_ID(__lttng_types_dentry__, TRACE_SYSTEM);
-
-static int TP_ID(__lttng_types_init__, TRACE_SYSTEM)(void)
-{
- int ret = 0;
-
- TP_ID(__lttng_types_dentry__, TRACE_SYSTEM) =
- debugfs_create_file("lttng-events-" __stringify(TRACE_SYSTEM),
- S_IWUSR, NULL, NULL,
- &TP_ID(__lttng_types_fops__, TRACE_SYSTEM));
- if (IS_ERR(TP_ID(__lttng_types_dentry__, TRACE_SYSTEM))
- || !TP_ID(__lttng_types_dentry__, TRACE_SYSTEM)) {
- printk(KERN_ERR "Error creating LTTng type export file\n");
- ret = -ENOMEM;
- goto error;
- }
-error:
- return ret;
-}
-
-static void TP_ID(__lttng_types_exit__, TRACE_SYSTEM)(void)
-{
- debugfs_remove(TP_ID(__lttng_types_dentry__, TRACE_SYSTEM));
-}
-
-#undef TP_ID1
-#undef TP_ID
-
-/*
- * Stage 4 of the trace events.
+ * Stage 6 of the trace events.
*
* Create static inline function that calculates event size.
*/
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-
-
/*
- * Stage 5 of the trace events.
+ * Stage 7 of the trace events.
*
* Create static inline function that calculates event payload alignment.
*/
/*
- * Stage 6 of the trace events.
+ * Stage 8 of the trace events.
*
* Create structure declaration that allows the "assign" macros to access the
* field types.
/*
- * Stage 7 of the trace events.
+ * Stage 9 of the trace events.
*
* Create the probe function : call even size calculation and write event data
* into the buffer.
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
/*
- * Stage 8 of the trace events.
+ * Stage 10 of the trace events.
*
* Register/unregister probes at module load/unload.
*/
static int TP_ID(__lttng_events_init__, TRACE_SYSTEM)(void)
{
- int ret;
-
wrapper_vmalloc_sync_all();
- ret = TP_ID(__lttng_types_init__, TRACE_SYSTEM)();
- if (ret)
- return ret;
return ltt_probe_register(&TP_ID(__probe_desc___, TRACE_SYSTEM));
}
static void TP_ID(__lttng_events_exit__, TRACE_SYSTEM)(void)
{
- TP_ID(__lttng_types_exit__, TRACE_SYSTEM)();
ltt_probe_unregister(&TP_ID(__probe_desc___, TRACE_SYSTEM));
}
projects / deliverable / lttng-modules.git / blobdiff