diff options
Diffstat (limited to 'kernel/trace/trace_export.c')
| -rw-r--r-- | kernel/trace/trace_export.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c index e091f64ba6c..4b74d71705c 100644 --- a/kernel/trace/trace_export.c +++ b/kernel/trace/trace_export.c @@ -83,13 +83,19 @@ static void __always_unused ____ftrace_check_##name(void) \ #undef __array #define __array(type, item, len) \ - BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \ - ret = trace_define_field(event_call, #type "[" #len "]", #item, \ + do { \ + BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \ + mutex_lock(&event_storage_mutex); \ + snprintf(event_storage, sizeof(event_storage), \ + "%s[%d]", #type, len); \ + ret = trace_define_field(event_call, event_storage, #item, \ offsetof(typeof(field), item), \ sizeof(field.item), \ is_signed_type(type), FILTER_OTHER); \ - if (ret) \ - return ret; + mutex_unlock(&event_storage_mutex); \ + if (ret) \ + return ret; \ + } while (0); #undef __array_desc #define __array_desc(type, container, item, len) \ @@ -125,12 +131,6 @@ ftrace_define_fields_##name(struct ftrace_event_call *event_call) \ #include "trace_entries.h" -static int ftrace_raw_init_event(struct ftrace_event_call *call) -{ - INIT_LIST_HEAD(&call->fields); - return 0; -} - #undef __entry #define __entry REC @@ -153,17 +153,21 @@ static int ftrace_raw_init_event(struct ftrace_event_call *call) #define F_printk(fmt, args...) #fmt ", " __stringify(args) #undef FTRACE_ENTRY -#define FTRACE_ENTRY(call, struct_name, type, tstruct, print) \ +#define FTRACE_ENTRY(call, struct_name, etype, tstruct, print) \ + \ +struct ftrace_event_class event_class_ftrace_##call = { \ + .system = __stringify(TRACE_SYSTEM), \ + .define_fields = ftrace_define_fields_##call, \ + .fields = LIST_HEAD_INIT(event_class_ftrace_##call.fields),\ +}; \ \ struct ftrace_event_call __used \ __attribute__((__aligned__(4))) \ __attribute__((section("_ftrace_events"))) event_##call = { \ .name = #call, \ - .id = type, \ - .system = __stringify(TRACE_SYSTEM), \ - .raw_init = ftrace_raw_init_event, \ + .event.type = etype, \ + .class = &event_class_ftrace_##call, \ .print_fmt = print, \ - .define_fields = ftrace_define_fields_##call, \ }; \ #include "trace_entries.h" |