20ab4425a7
Currently the trace event profile buffer is allocated in the stack. But
this may be too much for the stack, as the events can have large
statically defined field size and can also grow with dynamic arrays.
Allocate two per cpu buffer for all profiled events. The first cpu
buffer is used to host every non-nmi context traces. It is protected
by disabling the interrupts while writing and committing the trace.
The second buffer is reserved for nmi. So that there is no race between
them and the first buffer.
The whole write/commit section is rcu protected because we release
these buffers while deactivating the last profiling trace event.
v2: Move the buffers from trace_event to be global, as pointed by
Steven Rostedt.
v3: Fix the syscall events to handle the profiling buffer races
by disabling interrupts, now that the buffers are globals.
Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
771 lines
20 KiB
C
771 lines
20 KiB
C
/*
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* Stage 1 of the trace events.
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*
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* Override the macros in <trace/trace_events.h> to include the following:
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*
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* struct ftrace_raw_<call> {
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* struct trace_entry ent;
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* <type> <item>;
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* <type2> <item2>[<len>];
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* [...]
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* };
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*
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* The <type> <item> is created by the __field(type, item) macro or
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* the __array(type2, item2, len) macro.
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* We simply do "type item;", and that will create the fields
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* in the structure.
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*/
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#include <linux/ftrace_event.h>
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#undef __field
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#define __field(type, item) type item;
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#undef __field_ext
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#define __field_ext(type, item, filter_type) type item;
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#undef __array
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#define __array(type, item, len) type item[len];
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#undef __dynamic_array
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#define __dynamic_array(type, item, len) u32 __data_loc_##item;
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#undef __string
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#define __string(item, src) __dynamic_array(char, item, -1)
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#undef TP_STRUCT__entry
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#define TP_STRUCT__entry(args...) args
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#undef TRACE_EVENT
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#define TRACE_EVENT(name, proto, args, tstruct, assign, print) \
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struct ftrace_raw_##name { \
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struct trace_entry ent; \
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tstruct \
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char __data[0]; \
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}; \
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static struct ftrace_event_call event_##name
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#undef __cpparg
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#define __cpparg(arg...) arg
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/* Callbacks are meaningless to ftrace. */
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#undef TRACE_EVENT_FN
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#define TRACE_EVENT_FN(name, proto, args, tstruct, \
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assign, print, reg, unreg) \
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TRACE_EVENT(name, __cpparg(proto), __cpparg(args), \
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__cpparg(tstruct), __cpparg(assign), __cpparg(print)) \
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#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
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/*
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* Stage 2 of the trace events.
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*
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* Include the following:
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*
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* struct ftrace_data_offsets_<call> {
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* u32 <item1>;
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* u32 <item2>;
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* [...]
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* };
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*
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* The __dynamic_array() macro will create each u32 <item>, this is
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* to keep the offset of each array from the beginning of the event.
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* The size of an array is also encoded, in the higher 16 bits of <item>.
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*/
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#undef __field
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#define __field(type, item)
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#undef __field_ext
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#define __field_ext(type, item, filter_type)
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#undef __array
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#define __array(type, item, len)
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#undef __dynamic_array
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#define __dynamic_array(type, item, len) u32 item;
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#undef __string
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#define __string(item, src) __dynamic_array(char, item, -1)
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#undef TRACE_EVENT
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#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
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struct ftrace_data_offsets_##call { \
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tstruct; \
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};
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#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
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/*
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* Setup the showing format of trace point.
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*
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* int
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* ftrace_format_##call(struct trace_seq *s)
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* {
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* struct ftrace_raw_##call field;
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* int ret;
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*
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* ret = trace_seq_printf(s, #type " " #item ";"
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* " offset:%u; size:%u;\n",
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* offsetof(struct ftrace_raw_##call, item),
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* sizeof(field.type));
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*
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* }
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*/
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#undef TP_STRUCT__entry
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#define TP_STRUCT__entry(args...) args
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#undef __field
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#define __field(type, item) \
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ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
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"offset:%u;\tsize:%u;\n", \
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(unsigned int)offsetof(typeof(field), item), \
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(unsigned int)sizeof(field.item)); \
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if (!ret) \
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return 0;
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#undef __field_ext
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#define __field_ext(type, item, filter_type) __field(type, item)
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#undef __array
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#define __array(type, item, len) \
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ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
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"offset:%u;\tsize:%u;\n", \
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(unsigned int)offsetof(typeof(field), item), \
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(unsigned int)sizeof(field.item)); \
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if (!ret) \
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return 0;
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#undef __dynamic_array
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#define __dynamic_array(type, item, len) \
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ret = trace_seq_printf(s, "\tfield:__data_loc " #type "[] " #item ";\t"\
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"offset:%u;\tsize:%u;\n", \
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(unsigned int)offsetof(typeof(field), \
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__data_loc_##item), \
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(unsigned int)sizeof(field.__data_loc_##item)); \
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if (!ret) \
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return 0;
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#undef __string
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#define __string(item, src) __dynamic_array(char, item, -1)
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#undef __entry
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#define __entry REC
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#undef __print_symbolic
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#undef __get_dynamic_array
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#undef __get_str
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#undef TP_printk
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#define TP_printk(fmt, args...) "%s, %s\n", #fmt, __stringify(args)
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#undef TP_fast_assign
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#define TP_fast_assign(args...) args
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#undef TP_perf_assign
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#define TP_perf_assign(args...)
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#undef TRACE_EVENT
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#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
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static int \
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ftrace_format_##call(struct ftrace_event_call *unused, \
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struct trace_seq *s) \
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{ \
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struct ftrace_raw_##call field __attribute__((unused)); \
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int ret = 0; \
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\
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tstruct; \
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\
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trace_seq_printf(s, "\nprint fmt: " print); \
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\
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return ret; \
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}
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#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
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/*
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* Stage 3 of the trace events.
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*
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* Override the macros in <trace/trace_events.h> to include the following:
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*
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* enum print_line_t
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* ftrace_raw_output_<call>(struct trace_iterator *iter, int flags)
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* {
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* struct trace_seq *s = &iter->seq;
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* struct ftrace_raw_<call> *field; <-- defined in stage 1
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* struct trace_entry *entry;
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* struct trace_seq *p;
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* int ret;
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*
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* entry = iter->ent;
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*
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* if (entry->type != event_<call>.id) {
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* WARN_ON_ONCE(1);
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* return TRACE_TYPE_UNHANDLED;
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* }
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*
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* field = (typeof(field))entry;
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*
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* p = get_cpu_var(ftrace_event_seq);
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* trace_seq_init(p);
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* ret = trace_seq_printf(s, <TP_printk> "\n");
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* put_cpu();
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* if (!ret)
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* return TRACE_TYPE_PARTIAL_LINE;
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*
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* return TRACE_TYPE_HANDLED;
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* }
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*
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* This is the method used to print the raw event to the trace
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* output format. Note, this is not needed if the data is read
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* in binary.
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*/
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#undef __entry
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#define __entry field
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#undef TP_printk
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#define TP_printk(fmt, args...) fmt "\n", args
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#undef __get_dynamic_array
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#define __get_dynamic_array(field) \
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((void *)__entry + (__entry->__data_loc_##field & 0xffff))
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#undef __get_str
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#define __get_str(field) (char *)__get_dynamic_array(field)
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#undef __print_flags
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#define __print_flags(flag, delim, flag_array...) \
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({ \
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static const struct trace_print_flags __flags[] = \
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{ flag_array, { -1, NULL }}; \
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ftrace_print_flags_seq(p, delim, flag, __flags); \
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})
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#undef __print_symbolic
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#define __print_symbolic(value, symbol_array...) \
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({ \
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static const struct trace_print_flags symbols[] = \
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{ symbol_array, { -1, NULL }}; \
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ftrace_print_symbols_seq(p, value, symbols); \
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})
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#undef TRACE_EVENT
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#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
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static enum print_line_t \
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ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
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{ \
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struct trace_seq *s = &iter->seq; \
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struct ftrace_raw_##call *field; \
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struct trace_entry *entry; \
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struct trace_seq *p; \
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int ret; \
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\
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entry = iter->ent; \
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\
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if (entry->type != event_##call.id) { \
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WARN_ON_ONCE(1); \
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return TRACE_TYPE_UNHANDLED; \
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} \
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\
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field = (typeof(field))entry; \
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\
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p = &get_cpu_var(ftrace_event_seq); \
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trace_seq_init(p); \
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ret = trace_seq_printf(s, #call ": " print); \
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put_cpu(); \
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if (!ret) \
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return TRACE_TYPE_PARTIAL_LINE; \
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\
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return TRACE_TYPE_HANDLED; \
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}
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#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
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#undef __field_ext
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#define __field_ext(type, item, filter_type) \
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ret = trace_define_field(event_call, #type, #item, \
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offsetof(typeof(field), item), \
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sizeof(field.item), \
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is_signed_type(type), filter_type); \
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if (ret) \
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return ret;
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#undef __field
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#define __field(type, item) __field_ext(type, item, FILTER_OTHER)
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#undef __array
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#define __array(type, item, len) \
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BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \
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ret = trace_define_field(event_call, #type "[" #len "]", #item, \
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offsetof(typeof(field), item), \
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sizeof(field.item), 0, FILTER_OTHER); \
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if (ret) \
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return ret;
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#undef __dynamic_array
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#define __dynamic_array(type, item, len) \
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ret = trace_define_field(event_call, "__data_loc " #type "[]", #item, \
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offsetof(typeof(field), __data_loc_##item), \
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sizeof(field.__data_loc_##item), 0, \
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FILTER_OTHER);
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#undef __string
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#define __string(item, src) __dynamic_array(char, item, -1)
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#undef TRACE_EVENT
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#define TRACE_EVENT(call, proto, args, tstruct, func, print) \
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static int \
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ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
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{ \
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struct ftrace_raw_##call field; \
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int ret; \
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\
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ret = trace_define_common_fields(event_call); \
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if (ret) \
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return ret; \
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\
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tstruct; \
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\
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return ret; \
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}
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#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
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/*
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* remember the offset of each array from the beginning of the event.
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*/
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#undef __entry
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#define __entry entry
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#undef __field
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#define __field(type, item)
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#undef __field_ext
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#define __field_ext(type, item, filter_type)
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#undef __array
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#define __array(type, item, len)
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#undef __dynamic_array
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#define __dynamic_array(type, item, len) \
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__data_offsets->item = __data_size + \
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offsetof(typeof(*entry), __data); \
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__data_offsets->item |= (len * sizeof(type)) << 16; \
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__data_size += (len) * sizeof(type);
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#undef __string
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#define __string(item, src) __dynamic_array(char, item, strlen(src) + 1) \
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#undef TRACE_EVENT
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#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
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static inline int ftrace_get_offsets_##call( \
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struct ftrace_data_offsets_##call *__data_offsets, proto) \
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{ \
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int __data_size = 0; \
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struct ftrace_raw_##call __maybe_unused *entry; \
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\
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tstruct; \
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\
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return __data_size; \
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}
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#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
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#ifdef CONFIG_EVENT_PROFILE
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/*
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* Generate the functions needed for tracepoint perf_counter support.
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*
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* NOTE: The insertion profile callback (ftrace_profile_<call>) is defined later
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*
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* static int ftrace_profile_enable_<call>(void)
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* {
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* return register_trace_<call>(ftrace_profile_<call>);
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* }
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*
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* static void ftrace_profile_disable_<call>(void)
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* {
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* unregister_trace_<call>(ftrace_profile_<call>);
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* }
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*
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*/
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#undef TRACE_EVENT
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#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
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\
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static void ftrace_profile_##call(proto); \
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\
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static int ftrace_profile_enable_##call(void) \
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{ \
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return register_trace_##call(ftrace_profile_##call); \
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} \
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\
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static void ftrace_profile_disable_##call(void) \
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{ \
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unregister_trace_##call(ftrace_profile_##call); \
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}
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#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
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#endif
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/*
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* Stage 4 of the trace events.
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*
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* Override the macros in <trace/trace_events.h> to include the following:
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*
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* static void ftrace_event_<call>(proto)
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* {
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* event_trace_printk(_RET_IP_, "<call>: " <fmt>);
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* }
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*
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* static int ftrace_reg_event_<call>(void)
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* {
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* int ret;
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*
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* ret = register_trace_<call>(ftrace_event_<call>);
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* if (!ret)
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* pr_info("event trace: Could not activate trace point "
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* "probe to <call>");
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* return ret;
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* }
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*
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* static void ftrace_unreg_event_<call>(void)
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* {
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* unregister_trace_<call>(ftrace_event_<call>);
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* }
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*
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*
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* For those macros defined with TRACE_EVENT:
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*
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* static struct ftrace_event_call event_<call>;
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*
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* static void ftrace_raw_event_<call>(proto)
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* {
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* struct ring_buffer_event *event;
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* struct ftrace_raw_<call> *entry; <-- defined in stage 1
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* struct ring_buffer *buffer;
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* unsigned long irq_flags;
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* int pc;
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*
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* local_save_flags(irq_flags);
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* pc = preempt_count();
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*
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* event = trace_current_buffer_lock_reserve(&buffer,
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* event_<call>.id,
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* sizeof(struct ftrace_raw_<call>),
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* irq_flags, pc);
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* if (!event)
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* return;
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* entry = ring_buffer_event_data(event);
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*
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* <assign>; <-- Here we assign the entries by the __field and
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* __array macros.
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*
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* trace_current_buffer_unlock_commit(buffer, event, irq_flags, pc);
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* }
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*
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* static int ftrace_raw_reg_event_<call>(void)
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* {
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* int ret;
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*
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* ret = register_trace_<call>(ftrace_raw_event_<call>);
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* if (!ret)
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* pr_info("event trace: Could not activate trace point "
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* "probe to <call>");
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* return ret;
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* }
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*
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* static void ftrace_unreg_event_<call>(void)
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* {
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* unregister_trace_<call>(ftrace_raw_event_<call>);
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* }
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*
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* static struct trace_event ftrace_event_type_<call> = {
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* .trace = ftrace_raw_output_<call>, <-- stage 2
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* };
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*
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* static int ftrace_raw_init_event_<call>(void)
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* {
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* int id;
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*
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* id = register_ftrace_event(&ftrace_event_type_<call>);
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* if (!id)
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* return -ENODEV;
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* event_<call>.id = id;
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* return 0;
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* }
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*
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* static struct ftrace_event_call __used
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* __attribute__((__aligned__(4)))
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* __attribute__((section("_ftrace_events"))) event_<call> = {
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* .name = "<call>",
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* .system = "<system>",
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* .raw_init = ftrace_raw_init_event_<call>,
|
|
* .regfunc = ftrace_reg_event_<call>,
|
|
* .unregfunc = ftrace_unreg_event_<call>,
|
|
* .show_format = ftrace_format_<call>,
|
|
* }
|
|
*
|
|
*/
|
|
|
|
#undef TP_FMT
|
|
#define TP_FMT(fmt, args...) fmt "\n", ##args
|
|
|
|
#ifdef CONFIG_EVENT_PROFILE
|
|
|
|
#define _TRACE_PROFILE_INIT(call) \
|
|
.profile_count = ATOMIC_INIT(-1), \
|
|
.profile_enable = ftrace_profile_enable_##call, \
|
|
.profile_disable = ftrace_profile_disable_##call,
|
|
|
|
#else
|
|
#define _TRACE_PROFILE_INIT(call)
|
|
#endif
|
|
|
|
#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) \
|
|
__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);
|
|
|
|
#undef TRACE_EVENT
|
|
#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
|
|
\
|
|
static struct ftrace_event_call event_##call; \
|
|
\
|
|
static void ftrace_raw_event_##call(proto) \
|
|
{ \
|
|
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; \
|
|
struct ring_buffer *buffer; \
|
|
unsigned long irq_flags; \
|
|
int __data_size; \
|
|
int pc; \
|
|
\
|
|
local_save_flags(irq_flags); \
|
|
pc = preempt_count(); \
|
|
\
|
|
__data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
|
|
\
|
|
event = trace_current_buffer_lock_reserve(&buffer, \
|
|
event_##call.id, \
|
|
sizeof(*entry) + __data_size, \
|
|
irq_flags, pc); \
|
|
if (!event) \
|
|
return; \
|
|
entry = ring_buffer_event_data(event); \
|
|
\
|
|
\
|
|
tstruct \
|
|
\
|
|
{ assign; } \
|
|
\
|
|
if (!filter_current_check_discard(buffer, event_call, entry, event)) \
|
|
trace_nowake_buffer_unlock_commit(buffer, \
|
|
event, irq_flags, pc); \
|
|
} \
|
|
\
|
|
static int ftrace_raw_reg_event_##call(void *ptr) \
|
|
{ \
|
|
int ret; \
|
|
\
|
|
ret = register_trace_##call(ftrace_raw_event_##call); \
|
|
if (ret) \
|
|
pr_info("event trace: Could not activate trace point " \
|
|
"probe to " #call "\n"); \
|
|
return ret; \
|
|
} \
|
|
\
|
|
static void ftrace_raw_unreg_event_##call(void *ptr) \
|
|
{ \
|
|
unregister_trace_##call(ftrace_raw_event_##call); \
|
|
} \
|
|
\
|
|
static struct trace_event ftrace_event_type_##call = { \
|
|
.trace = ftrace_raw_output_##call, \
|
|
}; \
|
|
\
|
|
static int ftrace_raw_init_event_##call(void) \
|
|
{ \
|
|
int id; \
|
|
\
|
|
id = register_ftrace_event(&ftrace_event_type_##call); \
|
|
if (!id) \
|
|
return -ENODEV; \
|
|
event_##call.id = id; \
|
|
INIT_LIST_HEAD(&event_##call.fields); \
|
|
return 0; \
|
|
} \
|
|
\
|
|
static struct ftrace_event_call __used \
|
|
__attribute__((__aligned__(4))) \
|
|
__attribute__((section("_ftrace_events"))) event_##call = { \
|
|
.name = #call, \
|
|
.system = __stringify(TRACE_SYSTEM), \
|
|
.event = &ftrace_event_type_##call, \
|
|
.raw_init = ftrace_raw_init_event_##call, \
|
|
.regfunc = ftrace_raw_reg_event_##call, \
|
|
.unregfunc = ftrace_raw_unreg_event_##call, \
|
|
.show_format = ftrace_format_##call, \
|
|
.define_fields = ftrace_define_fields_##call, \
|
|
_TRACE_PROFILE_INIT(call) \
|
|
}
|
|
|
|
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
|
|
|
|
/*
|
|
* Define the insertion callback to profile events
|
|
*
|
|
* The job is very similar to ftrace_raw_event_<call> except that we don't
|
|
* insert in the ring buffer but in a perf counter.
|
|
*
|
|
* static void ftrace_profile_<call>(proto)
|
|
* {
|
|
* struct ftrace_data_offsets_<call> __maybe_unused __data_offsets;
|
|
* struct ftrace_event_call *event_call = &event_<call>;
|
|
* extern void perf_tpcounter_event(int, u64, u64, void *, int);
|
|
* struct ftrace_raw_##call *entry;
|
|
* u64 __addr = 0, __count = 1;
|
|
* unsigned long irq_flags;
|
|
* struct trace_entry *ent;
|
|
* int __entry_size;
|
|
* int __data_size;
|
|
* int __cpu
|
|
* int pc;
|
|
*
|
|
* pc = preempt_count();
|
|
*
|
|
* __data_size = ftrace_get_offsets_<call>(&__data_offsets, args);
|
|
*
|
|
* // Below we want to get the aligned size by taking into account
|
|
* // the u32 field that will later store the buffer size
|
|
* __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),
|
|
* sizeof(u64));
|
|
* __entry_size -= sizeof(u32);
|
|
*
|
|
* // Protect the non nmi buffer
|
|
* // This also protects the rcu read side
|
|
* local_irq_save(irq_flags);
|
|
* __cpu = smp_processor_id();
|
|
*
|
|
* if (in_nmi())
|
|
* raw_data = rcu_dereference(trace_profile_buf_nmi);
|
|
* else
|
|
* raw_data = rcu_dereference(trace_profile_buf);
|
|
*
|
|
* if (!raw_data)
|
|
* goto end;
|
|
*
|
|
* raw_data = per_cpu_ptr(raw_data, __cpu);
|
|
*
|
|
* //zero dead bytes from alignment to avoid stack leak to userspace:
|
|
* *(u64 *)(&raw_data[__entry_size - sizeof(u64)]) = 0ULL;
|
|
* entry = (struct ftrace_raw_<call> *)raw_data;
|
|
* ent = &entry->ent;
|
|
* tracing_generic_entry_update(ent, irq_flags, pc);
|
|
* ent->type = event_call->id;
|
|
*
|
|
* <tstruct> <- do some jobs with dynamic arrays
|
|
*
|
|
* <assign> <- affect our values
|
|
*
|
|
* perf_tpcounter_event(event_call->id, __addr, __count, entry,
|
|
* __entry_size); <- submit them to perf counter
|
|
*
|
|
* }
|
|
*/
|
|
|
|
#ifdef CONFIG_EVENT_PROFILE
|
|
|
|
#undef __perf_addr
|
|
#define __perf_addr(a) __addr = (a)
|
|
|
|
#undef __perf_count
|
|
#define __perf_count(c) __count = (c)
|
|
|
|
#undef TRACE_EVENT
|
|
#define TRACE_EVENT(call, proto, args, tstruct, assign, print) \
|
|
static void ftrace_profile_##call(proto) \
|
|
{ \
|
|
struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\
|
|
struct ftrace_event_call *event_call = &event_##call; \
|
|
extern void perf_tpcounter_event(int, u64, u64, void *, int); \
|
|
struct ftrace_raw_##call *entry; \
|
|
u64 __addr = 0, __count = 1; \
|
|
unsigned long irq_flags; \
|
|
struct trace_entry *ent; \
|
|
int __entry_size; \
|
|
int __data_size; \
|
|
char *raw_data; \
|
|
int __cpu; \
|
|
int pc; \
|
|
\
|
|
pc = preempt_count(); \
|
|
\
|
|
__data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
|
|
__entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\
|
|
sizeof(u64)); \
|
|
__entry_size -= sizeof(u32); \
|
|
\
|
|
if (WARN_ONCE(__entry_size > FTRACE_MAX_PROFILE_SIZE, \
|
|
"profile buffer not large enough")) \
|
|
return; \
|
|
\
|
|
local_irq_save(irq_flags); \
|
|
__cpu = smp_processor_id(); \
|
|
\
|
|
if (in_nmi()) \
|
|
raw_data = rcu_dereference(trace_profile_buf_nmi); \
|
|
else \
|
|
raw_data = rcu_dereference(trace_profile_buf); \
|
|
\
|
|
if (!raw_data) \
|
|
goto end; \
|
|
\
|
|
raw_data = per_cpu_ptr(raw_data, __cpu); \
|
|
\
|
|
*(u64 *)(&raw_data[__entry_size - sizeof(u64)]) = 0ULL; \
|
|
entry = (struct ftrace_raw_##call *)raw_data; \
|
|
ent = &entry->ent; \
|
|
tracing_generic_entry_update(ent, irq_flags, pc); \
|
|
ent->type = event_call->id; \
|
|
\
|
|
tstruct \
|
|
\
|
|
{ assign; } \
|
|
\
|
|
perf_tpcounter_event(event_call->id, __addr, __count, entry, \
|
|
__entry_size); \
|
|
\
|
|
end: \
|
|
local_irq_restore(irq_flags); \
|
|
\
|
|
}
|
|
|
|
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
|
|
#endif /* CONFIG_EVENT_PROFILE */
|
|
|
|
#undef _TRACE_PROFILE_INIT
|
|
|