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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2015-04-29 13:11:00 -0400
committerSteven Rostedt <rostedt@goodmis.org>2015-05-13 14:05:10 -0400
commitee53bbd172571c944bc2d01b4846fc7c49ebd353 (patch)
tree7067012d69282475eb856edeecc01d242c403f52 /include/trace/trace_events.h
parent2167ae727215714d25fe44945cdbe6157f7ac481 (diff)
downloadop-kernel-dev-ee53bbd172571c944bc2d01b4846fc7c49ebd353.zip
op-kernel-dev-ee53bbd172571c944bc2d01b4846fc7c49ebd353.tar.gz
tracing: Move the perf code out of trace_event.h
The trace_event.h file is for the generic trace event code. Move the perf related code into its own trace header file perf.h Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'include/trace/trace_events.h')
-rw-r--r--include/trace/trace_events.h351
1 files changed, 0 insertions, 351 deletions
diff --git a/include/trace/trace_events.h b/include/trace/trace_events.h
index 37d4b10..19af616 100644
--- a/include/trace/trace_events.h
+++ b/include/trace/trace_events.h
@@ -506,354 +506,3 @@ static inline notrace int ftrace_get_offsets_##call( \
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-/*
- * 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 ftrace_event_call event_<call>;
- *
- * static void ftrace_raw_event_<call>(void *__data, proto)
- * {
- * struct ftrace_event_file *ftrace_file = __data;
- * struct ftrace_event_call *event_call = ftrace_file->event_call;
- * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets;
- * unsigned long eflags = ftrace_file->flags;
- * enum event_trigger_type __tt = ETT_NONE;
- * struct ring_buffer_event *event;
- * struct ftrace_raw_<call> *entry; <-- defined in stage 1
- * struct ring_buffer *buffer;
- * unsigned long irq_flags;
- * int __data_size;
- * int pc;
- *
- * if (!(eflags & FTRACE_EVENT_FL_TRIGGER_COND)) {
- * if (eflags & FTRACE_EVENT_FL_TRIGGER_MODE)
- * event_triggers_call(ftrace_file, NULL);
- * if (eflags & FTRACE_EVENT_FL_SOFT_DISABLED)
- * return;
- * }
- *
- * local_save_flags(irq_flags);
- * pc = preempt_count();
- *
- * __data_size = ftrace_get_offsets_<call>(&__data_offsets, args);
- *
- * event = trace_event_buffer_lock_reserve(&buffer, ftrace_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 & FTRACE_EVENT_FL_TRIGGER_COND)
- * __tt = event_triggers_call(ftrace_file, entry);
- *
- * if (test_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT,
- * &ftrace_file->flags))
- * ring_buffer_discard_commit(buffer, event);
- * else if (!filter_check_discard(ftrace_file, entry, buffer, event))
- * trace_buffer_unlock_commit(buffer, event, irq_flags, pc);
- *
- * if (__tt)
- * event_triggers_post_call(ftrace_file, __tt);
- * }
- *
- * static struct trace_event ftrace_event_type_<call> = {
- * .trace = ftrace_raw_output_<call>, <-- stage 2
- * };
- *
- * static char print_fmt_<call>[] = <TP_printk>;
- *
- * static struct ftrace_event_class __used event_class_<template> = {
- * .system = "<system>",
- * .define_fields = ftrace_define_fields_<call>,
- * .fields = LIST_HEAD_INIT(event_class_##call.fields),
- * .raw_init = trace_event_raw_init,
- * .probe = ftrace_raw_event_##call,
- * .reg = ftrace_event_reg,
- * };
- *
- * static struct ftrace_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 ftrace_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 \
-ftrace_raw_event_##call(void *__data, proto) \
-{ \
- struct ftrace_event_file *ftrace_file = __data; \
- struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
- struct ftrace_event_buffer fbuffer; \
- struct ftrace_raw_##call *entry; \
- int __data_size; \
- \
- if (ftrace_trigger_soft_disabled(ftrace_file)) \
- return; \
- \
- __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
- \
- entry = ftrace_event_buffer_reserve(&fbuffer, ftrace_file, \
- sizeof(*entry) + __data_size); \
- \
- if (!entry) \
- return; \
- \
- tstruct \
- \
- { assign; } \
- \
- ftrace_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(ftrace_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 ftrace_event_class __used __refdata event_class_##call = { \
- .system = TRACE_SYSTEM_STRING, \
- .define_fields = ftrace_define_fields_##call, \
- .fields = LIST_HEAD_INIT(event_class_##call.fields),\
- .raw_init = trace_event_raw_init, \
- .probe = ftrace_raw_event_##call, \
- .reg = ftrace_event_reg, \
- _TRACE_PERF_INIT(call) \
-};
-
-#undef DEFINE_EVENT
-#define DEFINE_EVENT(template, call, proto, args) \
- \
-static struct ftrace_event_call __used event_##call = { \
- .class = &event_class_##template, \
- { \
- .tp = &__tracepoint_##call, \
- }, \
- .event.funcs = &ftrace_event_type_funcs_##template, \
- .print_fmt = print_fmt_##template, \
- .flags = TRACE_EVENT_FL_TRACEPOINT, \
-}; \
-static struct ftrace_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 ftrace_event_call __used event_##call = { \
- .class = &event_class_##template, \
- { \
- .tp = &__tracepoint_##call, \
- }, \
- .event.funcs = &ftrace_event_type_funcs_##call, \
- .print_fmt = print_fmt_##call, \
- .flags = TRACE_EVENT_FL_TRACEPOINT, \
-}; \
-static struct ftrace_event_call __used \
-__attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
-
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-
-#undef TRACE_SYSTEM_VAR
-
-#ifdef CONFIG_PERF_EVENTS
-
-#undef __entry
-#define __entry entry
-
-#undef __get_dynamic_array
-#define __get_dynamic_array(field) \
- ((void *)__entry + (__entry->__data_loc_##field & 0xffff))
-
-#undef __get_dynamic_array_len
-#define __get_dynamic_array_len(field) \
- ((__entry->__data_loc_##field >> 16) & 0xffff)
-
-#undef __get_str
-#define __get_str(field) (char *)__get_dynamic_array(field)
-
-#undef __get_bitmask
-#define __get_bitmask(field) (char *)__get_dynamic_array(field)
-
-#undef __perf_addr
-#define __perf_addr(a) (__addr = (a))
-
-#undef __perf_count
-#define __perf_count(c) (__count = (c))
-
-#undef __perf_task
-#define __perf_task(t) (__task = (t))
-
-#undef DECLARE_EVENT_CLASS
-#define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \
-static notrace void \
-perf_trace_##call(void *__data, proto) \
-{ \
- struct ftrace_event_call *event_call = __data; \
- struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
- struct ftrace_raw_##call *entry; \
- struct pt_regs *__regs; \
- u64 __addr = 0, __count = 1; \
- struct task_struct *__task = NULL; \
- struct hlist_head *head; \
- int __entry_size; \
- int __data_size; \
- int rctx; \
- \
- __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
- \
- head = this_cpu_ptr(event_call->perf_events); \
- if (__builtin_constant_p(!__task) && !__task && \
- hlist_empty(head)) \
- return; \
- \
- __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\
- sizeof(u64)); \
- __entry_size -= sizeof(u32); \
- \
- entry = perf_trace_buf_prepare(__entry_size, \
- event_call->event.type, &__regs, &rctx); \
- if (!entry) \
- return; \
- \
- perf_fetch_caller_regs(__regs); \
- \
- tstruct \
- \
- { assign; } \
- \
- perf_trace_buf_submit(entry, __entry_size, rctx, __addr, \
- __count, __regs, head, __task); \
-}
-
-/*
- * This part is compiled out, it is only here as a build time check
- * to make sure that if the tracepoint handling changes, the
- * perf probe will fail to compile unless it too is updated.
- */
-#undef DEFINE_EVENT
-#define DEFINE_EVENT(template, call, proto, args) \
-static inline void perf_test_probe_##call(void) \
-{ \
- check_trace_callback_type_##call(perf_trace_##template); \
-}
-
-
-#undef DEFINE_EVENT_PRINT
-#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
- DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
-
-#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-#endif /* CONFIG_PERF_EVENTS */
-
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