#include <linux/ftrace_event.h>
+#undef __field
+#define __field(type, item) type item;
+
#undef __array
#define __array(type, item, len) type item[len];
-#undef __field
-#define __field(type, item) type item;
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) unsigned short __data_loc_##item;
#undef __string
-#define __string(item, src) int __str_loc_##item;
+#define __string(item, src) __dynamic_array(char, item, -1)
#undef TP_STRUCT__entry
#define TP_STRUCT__entry(args...) args
struct ftrace_raw_##name { \
struct trace_entry ent; \
tstruct \
- char __str_data[0]; \
+ char __data[0]; \
}; \
static struct ftrace_event_call event_##name
*
* Include the following:
*
- * struct ftrace_str_offsets_<call> {
- * int <str1>;
- * int <str2>;
+ * struct ftrace_data_offsets_<call> {
+ * int <item1>;
+ * int <item2>;
* [...]
* };
*
- * The __string() macro will create each int <str>, this is to
- * keep the offset of each string from the beggining of the event
- * once we perform the strlen() of the src strings.
- *
+ * The __dynamic_array() macro will create each int <item>, this is
+ * to keep the offset of each array from the beginning of the event.
*/
+#undef __field
+#define __field(type, item);
+
#undef __array
#define __array(type, item, len)
-#undef __field
-#define __field(type, item);
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) int item;
#undef __string
-#define __string(item, src) int item;
+#define __string(item, src) __dynamic_array(char, item, -1)
#undef TRACE_EVENT
#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
- struct ftrace_str_offsets_##call { \
+ struct ftrace_data_offsets_##call { \
tstruct; \
};
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+/*
+ * Setup the showing format of trace point.
+ *
+ * int
+ * ftrace_format_##call(struct trace_seq *s)
+ * {
+ * struct ftrace_raw_##call field;
+ * int ret;
+ *
+ * ret = trace_seq_printf(s, #type " " #item ";"
+ * " offset:%u; size:%u;\n",
+ * offsetof(struct ftrace_raw_##call, item),
+ * sizeof(field.type));
+ *
+ * }
+ */
+
+#undef TP_STRUCT__entry
+#define TP_STRUCT__entry(args...) args
+
+#undef __field
+#define __field(type, item) \
+ ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
+ "offset:%u;\tsize:%u;\n", \
+ (unsigned int)offsetof(typeof(field), item), \
+ (unsigned int)sizeof(field.item)); \
+ if (!ret) \
+ return 0;
+
+#undef __array
+#define __array(type, item, len) \
+ ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
+ "offset:%u;\tsize:%u;\n", \
+ (unsigned int)offsetof(typeof(field), item), \
+ (unsigned int)sizeof(field.item)); \
+ if (!ret) \
+ return 0;
+
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) \
+ ret = trace_seq_printf(s, "\tfield:__data_loc " #item ";\t" \
+ "offset:%u;\tsize:%u;\n", \
+ (unsigned int)offsetof(typeof(field), \
+ __data_loc_##item), \
+ (unsigned int)sizeof(field.__data_loc_##item)); \
+ if (!ret) \
+ return 0;
+
+#undef __string
+#define __string(item, src) __dynamic_array(char, item, -1)
+
+#undef __entry
+#define __entry REC
+
+#undef __print_symbolic
+#undef __get_dynamic_array
+#undef __get_str
+
+#undef TP_printk
+#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
+
+#undef TP_fast_assign
+#define TP_fast_assign(args...) args
+
+#undef TRACE_EVENT
+#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
+static int \
+ftrace_format_##call(struct trace_seq *s) \
+{ \
+ struct ftrace_raw_##call field __attribute__((unused)); \
+ int ret = 0; \
+ \
+ tstruct; \
+ \
+ trace_seq_printf(s, "\nprint fmt: " print); \
+ \
+ return ret; \
+}
+
+#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+
/*
* Stage 3 of the trace events.
*
* struct trace_seq *s = &iter->seq;
* struct ftrace_raw_<call> *field; <-- defined in stage 1
* struct trace_entry *entry;
+ * struct trace_seq *p;
* int ret;
*
* entry = iter->ent;
*
* field = (typeof(field))entry;
*
+ * p = get_cpu_var(ftrace_event_seq);
+ * trace_seq_init(p);
* ret = trace_seq_printf(s, <TP_printk> "\n");
+ * put_cpu();
* if (!ret)
* return TRACE_TYPE_PARTIAL_LINE;
*
#undef TP_printk
#define TP_printk(fmt, args...) fmt "\n", args
+#undef __get_dynamic_array
+#define __get_dynamic_array(field) \
+ ((void *)__entry + __entry->__data_loc_##field)
+
#undef __get_str
-#define __get_str(field) ((char *)__entry + __entry->__str_loc_##field)
+#define __get_str(field) (char *)__get_dynamic_array(field)
+
+#undef __print_flags
+#define __print_flags(flag, delim, flag_array...) \
+ ({ \
+ static const struct trace_print_flags flags[] = \
+ { flag_array, { -1, NULL }}; \
+ ftrace_print_flags_seq(p, delim, flag, flags); \
+ })
+
+#undef __print_symbolic
+#define __print_symbolic(value, symbol_array...) \
+ ({ \
+ static const struct trace_print_flags symbols[] = \
+ { symbol_array, { -1, NULL }}; \
+ ftrace_print_symbols_seq(p, value, symbols); \
+ })
#undef TRACE_EVENT
#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
struct trace_seq *s = &iter->seq; \
struct ftrace_raw_##call *field; \
struct trace_entry *entry; \
+ struct trace_seq *p; \
int ret; \
\
entry = iter->ent; \
\
field = (typeof(field))entry; \
\
+ p = &get_cpu_var(ftrace_event_seq); \
+ trace_seq_init(p); \
ret = trace_seq_printf(s, #call ": " print); \
+ put_cpu(); \
if (!ret) \
return TRACE_TYPE_PARTIAL_LINE; \
\
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-/*
- * Setup the showing format of trace point.
- *
- * int
- * ftrace_format_##call(struct trace_seq *s)
- * {
- * struct ftrace_raw_##call field;
- * int ret;
- *
- * ret = trace_seq_printf(s, #type " " #item ";"
- * " offset:%u; size:%u;\n",
- * offsetof(struct ftrace_raw_##call, item),
- * sizeof(field.type));
- *
- * }
- */
-
-#undef TP_STRUCT__entry
-#define TP_STRUCT__entry(args...) args
-
-#undef __field
-#define __field(type, item) \
- ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
- "offset:%u;\tsize:%u;\n", \
- (unsigned int)offsetof(typeof(field), item), \
- (unsigned int)sizeof(field.item)); \
- if (!ret) \
- return 0;
-
-#undef __array
-#define __array(type, item, len) \
- ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
- "offset:%u;\tsize:%u;\n", \
- (unsigned int)offsetof(typeof(field), item), \
- (unsigned int)sizeof(field.item)); \
- if (!ret) \
- return 0;
-
-#undef __string
-#define __string(item, src) \
- ret = trace_seq_printf(s, "\tfield: __str_loc " #item ";\t" \
- "offset:%u;tsize:%u;\n", \
- (unsigned int)offsetof(typeof(field), \
- __str_loc_##item), \
- (unsigned int)sizeof(field.__str_loc_##item)); \
- if (!ret) \
- return 0;
-
-#undef __entry
-#define __entry REC
-
-#undef TP_printk
-#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
-
-#undef TP_fast_assign
-#define TP_fast_assign(args...) args
-
-#undef TRACE_EVENT
-#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
-static int \
-ftrace_format_##call(struct trace_seq *s) \
-{ \
- struct ftrace_raw_##call field __attribute__((unused)); \
- int ret = 0; \
- \
- tstruct; \
- \
- trace_seq_printf(s, "\nprint fmt: " print); \
- \
- return ret; \
-}
-
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-
#undef __field
#define __field(type, item) \
ret = trace_define_field(event_call, #type, #item, \
if (ret) \
return ret;
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) \
+ ret = trace_define_field(event_call, "__data_loc" "[" #type "]", #item,\
+ offsetof(typeof(field), __data_loc_##item), \
+ sizeof(field.__data_loc_##item), 0);
+
#undef __string
-#define __string(item, src) \
- ret = trace_define_field(event_call, "__str_loc", #item, \
- offsetof(typeof(field), __str_loc_##item), \
- sizeof(field.__str_loc_##item), 0);
+#define __string(item, src) __dynamic_array(char, item, -1)
#undef TRACE_EVENT
#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+/*
+ * remember the offset of each array from the beginning of the event.
+ */
+
+#undef __entry
+#define __entry entry
+
+#undef __field
+#define __field(type, item)
+
+#undef __array
+#define __array(type, item, len)
+
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) \
+ __data_offsets->item = __data_size + \
+ offsetof(typeof(*entry), __data); \
+ __data_size += (len) * sizeof(type);
+
+#undef __string
+#define __string(item, src) __dynamic_array(char, item, strlen(src) + 1) \
+
+#undef TRACE_EVENT
+#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
+static inline int ftrace_get_offsets_##call( \
+ struct ftrace_data_offsets_##call *__data_offsets, proto) \
+{ \
+ int __data_size = 0; \
+ struct ftrace_raw_##call __maybe_unused *entry; \
+ \
+ tstruct; \
+ \
+ return __data_size; \
+}
+
+#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
+
/*
* Stage 4 of the trace events.
*
perf_tpcounter_event(event_##call.id); \
} \
\
-static int ftrace_profile_enable_##call(struct ftrace_event_call *call) \
+static int ftrace_profile_enable_##call(struct ftrace_event_call *event_call) \
{ \
int ret = 0; \
\
- if (!atomic_inc_return(&call->profile_count)) \
+ if (!atomic_inc_return(&event_call->profile_count)) \
ret = register_trace_##call(ftrace_profile_##call); \
\
return ret; \
} \
\
-static void ftrace_profile_disable_##call(struct ftrace_event_call *call) \
+static void ftrace_profile_disable_##call(struct ftrace_event_call *event_call)\
{ \
- if (atomic_add_negative(-1, &call->profile_count)) \
+ if (atomic_add_negative(-1, &event_call->profile_count)) \
unregister_trace_##call(ftrace_profile_##call); \
}
#undef __array
#define __array(type, item, len)
+#undef __dynamic_array
+#define __dynamic_array(type, item, len) \
+ __entry->__data_loc_##item = __data_offsets.item;
+
#undef __string
-#define __string(item, src) \
- __str_offsets.item = __str_size + \
- offsetof(typeof(*entry), __str_data); \
- __str_size += strlen(src) + 1;
+#define __string(item, src) __dynamic_array(char, item, -1) \
#undef __assign_str
#define __assign_str(dst, src) \
- __entry->__str_loc_##dst = __str_offsets.dst; \
strcpy(__get_str(dst), src);
#undef TRACE_EVENT
\
static void ftrace_raw_event_##call(proto) \
{ \
- struct ftrace_str_offsets_##call __maybe_unused __str_offsets; \
- struct ftrace_event_call *call = &event_##call; \
+ struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
+ struct ftrace_event_call *event_call = &event_##call; \
struct ring_buffer_event *event; \
struct ftrace_raw_##call *entry; \
unsigned long irq_flags; \
- int __str_size = 0; \
+ int __data_size; \
int pc; \
\
local_save_flags(irq_flags); \
pc = preempt_count(); \
\
- tstruct; \
+ __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
\
event = trace_current_buffer_lock_reserve(event_##call.id, \
- sizeof(struct ftrace_raw_##call) + __str_size,\
+ sizeof(*entry) + __data_size, \
irq_flags, pc); \
if (!event) \
return; \
entry = ring_buffer_event_data(event); \
\
- assign; \
\
- if (!filter_current_check_discard(call, entry, event)) \
+ tstruct \
+ \
+ { assign; } \
+ \
+ if (!filter_current_check_discard(event_call, entry, event)) \
trace_nowake_buffer_unlock_commit(event, irq_flags, pc); \
} \
\
git.openpandora.org / pandora-kernel.git / blobdiff