aboutsummaryrefslogtreecommitdiffstats
path: root/include/trace/perf.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/trace/perf.h')
-rw-r--r--include/trace/perf.h258
1 files changed, 0 insertions, 258 deletions
diff --git a/include/trace/perf.h b/include/trace/perf.h
index 1b5443cebedc..26486fcd74ce 100644
--- a/include/trace/perf.h
+++ b/include/trace/perf.h
@@ -1,261 +1,3 @@
-/*
- * Stage 4 of the trace events.
- *
- * Override the macros in <trace/trace_events.h> to include the following:
- *
- * For those macros defined with TRACE_EVENT:
- *
- * static struct trace_event_call event_<call>;
- *
- * static void trace_event_raw_event_<call>(void *__data, proto)
- * {
- * struct trace_event_file *trace_file = __data;
- * struct trace_event_call *event_call = trace_file->event_call;
- * struct trace_event_data_offsets_<call> __maybe_unused __data_offsets;
- * unsigned long eflags = trace_file->flags;
- * enum event_trigger_type __tt = ETT_NONE;
- * struct ring_buffer_event *event;
- * struct trace_event_raw_<call> *entry; <-- defined in stage 1
- * struct ring_buffer *buffer;
- * unsigned long irq_flags;
- * int __data_size;
- * int pc;
- *
- * if (!(eflags & EVENT_FILE_FL_TRIGGER_COND)) {
- * if (eflags & EVENT_FILE_FL_TRIGGER_MODE)
- * event_triggers_call(trace_file, NULL);
- * if (eflags & EVENT_FILE_FL_SOFT_DISABLED)
- * return;
- * }
- *
- * local_save_flags(irq_flags);
- * pc = preempt_count();
- *
- * __data_size = trace_event_get_offsets_<call>(&__data_offsets, args);
- *
- * event = trace_event_buffer_lock_reserve(&buffer, trace_file,
- * event_<call>->event.type,
- * sizeof(*entry) + __data_size,
- * irq_flags, pc);
- * if (!event)
- * return;
- * entry = ring_buffer_event_data(event);
- *
- * { <assign>; } <-- Here we assign the entries by the __field and
- * __array macros.
- *
- * if (eflags & EVENT_FILE_FL_TRIGGER_COND)
- * __tt = event_triggers_call(trace_file, entry);
- *
- * if (test_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT,
- * &trace_file->flags))
- * ring_buffer_discard_commit(buffer, event);
- * else if (!filter_check_discard(trace_file, entry, buffer, event))
- * trace_buffer_unlock_commit(buffer, event, irq_flags, pc);
- *
- * if (__tt)
- * event_triggers_post_call(trace_file, __tt);
- * }
- *
- * static struct trace_event ftrace_event_type_<call> = {
- * .trace = trace_raw_output_<call>, <-- stage 2
- * };
- *
- * static char print_fmt_<call>[] = <TP_printk>;
- *
- * static struct trace_event_class __used event_class_<template> = {
- * .system = "<system>",
- * .define_fields = trace_event_define_fields_<call>,
- * .fields = LIST_HEAD_INIT(event_class_##call.fields),
- * .raw_init = trace_event_raw_init,
- * .probe = trace_event_raw_event_##call,
- * .reg = trace_event_reg,
- * };
- *
- * static struct trace_event_call event_<call> = {
- * .class = event_class_<template>,
- * {
- * .tp = &__tracepoint_<call>,
- * },
- * .event = &ftrace_event_type_<call>,
- * .print_fmt = print_fmt_<call>,
- * .flags = TRACE_EVENT_FL_TRACEPOINT,
- * };
- * // its only safe to use pointers when doing linker tricks to
- * // create an array.
- * static struct trace_event_call __used
- * __attribute__((section("_ftrace_events"))) *__event_<call> = &event_<call>;
- *
- */
-
-#ifdef CONFIG_PERF_EVENTS
-
-#define _TRACE_PERF_PROTO(call, proto) \
- static notrace void \
- perf_trace_##call(void *__data, proto);
-
-#define _TRACE_PERF_INIT(call) \
- .perf_probe = perf_trace_##call,
-
-#else
-#define _TRACE_PERF_PROTO(call, proto)
-#define _TRACE_PERF_INIT(call)
-#endif /* CONFIG_PERF_EVENTS */
-
-#undef __entry
-#define __entry entry
-
-#undef __field
-#define __field(type, item)
-
-#undef __field_struct
-#define __field_struct(type, item)
-
-#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) __dynamic_array(char, item, -1)
-
-#undef __assign_str
-#define __assign_str(dst, src) \
- strcpy(__get_str(dst), (src) ? (const char *)(src) : "(null)");
-
-#undef __bitmask
-#define __bitmask(item, nr_bits) __dynamic_array(unsigned long, item, -1)
-
-#undef __get_bitmask
-#define __get_bitmask(field) (char *)__get_dynamic_array(field)
-
-#undef __assign_bitmask
-#define __assign_bitmask(dst, src, nr_bits) \
- memcpy(__get_bitmask(dst), (src), __bitmask_size_in_bytes(nr_bits))
-
-#undef TP_fast_assign
-#define TP_fast_assign(args...) args
-
-#undef __perf_addr
-#define __perf_addr(a) (a)
-
-#undef __perf_count
-#define __perf_count(c) (c)
-
-#undef __perf_task
-#define __perf_task(t) (t)
-
-#undef DECLARE_EVENT_CLASS
-#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
- \
-static notrace void \
-trace_event_raw_event_##call(void *__data, proto) \
-{ \
- struct trace_event_file *trace_file = __data; \
- struct trace_event_data_offsets_##call __maybe_unused __data_offsets;\
- struct trace_event_buffer fbuffer; \
- struct trace_event_raw_##call *entry; \
- int __data_size; \
- \
- if (trace_trigger_soft_disabled(trace_file)) \
- return; \
- \
- __data_size = trace_event_get_offsets_##call(&__data_offsets, args); \
- \
- entry = trace_event_buffer_reserve(&fbuffer, trace_file, \
- sizeof(*entry) + __data_size); \
- \
- if (!entry) \
- return; \
- \
- tstruct \
- \
- { assign; } \
- \
- trace_event_buffer_commit(&fbuffer); \
-}
-/*
- * The ftrace_test_probe is compiled out, it is only here as a build time check
- * to make sure that if the tracepoint handling changes, the ftrace probe will
- * fail to compile unless it too is updated.
- */
-
-#undef DEFINE_EVENT
-#define DEFINE_EVENT(template, call, proto, args) \
-static inline void ftrace_test_probe_##call(void) \
-{ \
- check_trace_callback_type_##call(trace_event_raw_event_##template); \
-}
-
-#undef DEFINE_EVENT_PRINT
-#define DEFINE_EVENT_PRINT(template, name, proto, args, print)
-
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-
-#undef __entry
-#define __entry REC
-
-#undef __print_flags
-#undef __print_symbolic
-#undef __print_hex
-#undef __get_dynamic_array
-#undef __get_dynamic_array_len
-#undef __get_str
-#undef __get_bitmask
-#undef __print_array
-
-#undef TP_printk
-#define TP_printk(fmt, args...) "\"" fmt "\", " __stringify(args)
-
-#undef DECLARE_EVENT_CLASS
-#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
-_TRACE_PERF_PROTO(call, PARAMS(proto)); \
-static char print_fmt_##call[] = print; \
-static struct trace_event_class __used __refdata event_class_##call = { \
- .system = TRACE_SYSTEM_STRING, \
- .define_fields = trace_event_define_fields_##call, \
- .fields = LIST_HEAD_INIT(event_class_##call.fields),\
- .raw_init = trace_event_raw_init, \
- .probe = trace_event_raw_event_##call, \
- .reg = trace_event_reg, \
- _TRACE_PERF_INIT(call) \
-};
-
-#undef DEFINE_EVENT
-#define DEFINE_EVENT(template, call, proto, args) \
- \
-static struct trace_event_call __used event_##call = { \
- .class = &event_class_##template, \
- { \
- .tp = &__tracepoint_##call, \
- }, \
- .event.funcs = &trace_event_type_funcs_##template, \
- .print_fmt = print_fmt_##template, \
- .flags = TRACE_EVENT_FL_TRACEPOINT, \
-}; \
-static struct trace_event_call __used \
-__attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
-
-#undef DEFINE_EVENT_PRINT
-#define DEFINE_EVENT_PRINT(template, call, proto, args, print) \
- \
-static char print_fmt_##call[] = print; \
- \
-static struct trace_event_call __used event_##call = { \
- .class = &event_class_##template, \
- { \
- .tp = &__tracepoint_##call, \
- }, \
- .event.funcs = &trace_event_type_funcs_##call, \
- .print_fmt = print_fmt_##call, \
- .flags = TRACE_EVENT_FL_TRACEPOINT, \
-}; \
-static struct trace_event_call __used \
-__attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
-
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
#undef TRACE_SYSTEM_VAR

Privacy Policy