Messages in this thread | | | Subject | Re: [PATCH 8/9] ftrace, perf: Add FILTER_TRACE_FN event field type | From | Steven Rostedt <> | Date | Mon, 28 Nov 2011 15:01:23 -0500 |
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BTW, Please Cc Peter Zijlstra too, as he maintains perf inside the kernel.
On Sun, 2011-11-27 at 19:04 +0100, Jiri Olsa wrote: > Adding FILTER_TRACE_FN event field type for function tracepoint > event, so it can be properly recognized within filtering code.
-ECHANGELOGTOOSHORT
I'm not sure what this is for.
-- Steve
> > Signed-off-by: Jiri Olsa <jolsa@redhat.com> > --- > include/linux/ftrace_event.h | 1 + > kernel/trace/trace_events_filter.c | 7 ++++++- > kernel/trace/trace_export.c | 25 ++++++++++++++++++++----- > 3 files changed, 27 insertions(+), 6 deletions(-) > > diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h > index 2bf677c..dd478fc 100644 > --- a/include/linux/ftrace_event.h > +++ b/include/linux/ftrace_event.h > @@ -245,6 +245,7 @@ enum { > FILTER_STATIC_STRING, > FILTER_DYN_STRING, > FILTER_PTR_STRING, > + FILTER_TRACE_FN, > }; > > #define EVENT_STORAGE_SIZE 128 > diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c > index fdc6d22..7b0b04c 100644 > --- a/kernel/trace/trace_events_filter.c > +++ b/kernel/trace/trace_events_filter.c > @@ -900,6 +900,11 @@ int filter_assign_type(const char *type) > return FILTER_OTHER; > } > > +static bool is_function_field(struct ftrace_event_field *field) > +{ > + return field->filter_type == FILTER_TRACE_FN; > +} > + > static bool is_string_field(struct ftrace_event_field *field) > { > return field->filter_type == FILTER_DYN_STRING || > @@ -987,7 +992,7 @@ static int init_pred(struct filter_parse_state *ps, > fn = filter_pred_strloc; > else > fn = filter_pred_pchar; > - } else { > + } else if (!is_function_field(field)) { > if (field->is_signed) > ret = strict_strtoll(pred->regex.pattern, 0, &val); > else > diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c > index 62e86a5..7b035ab 100644 > --- a/kernel/trace/trace_export.c > +++ b/kernel/trace/trace_export.c > @@ -67,7 +67,7 @@ static void __always_unused ____ftrace_check_##name(void) \ > ret = trace_define_field(event_call, #type, #item, \ > offsetof(typeof(field), item), \ > sizeof(field.item), \ > - is_signed_type(type), FILTER_OTHER); \ > + is_signed_type(type), filter_type); \ > if (ret) \ > return ret; > > @@ -77,7 +77,7 @@ static void __always_unused ____ftrace_check_##name(void) \ > offsetof(typeof(field), \ > container.item), \ > sizeof(field.container.item), \ > - is_signed_type(type), FILTER_OTHER); \ > + is_signed_type(type), filter_type); \ > if (ret) \ > return ret; > > @@ -91,7 +91,7 @@ static void __always_unused ____ftrace_check_##name(void) \ > ret = trace_define_field(event_call, event_storage, #item, \ > offsetof(typeof(field), item), \ > sizeof(field.item), \ > - is_signed_type(type), FILTER_OTHER); \ > + is_signed_type(type), filter_type); \ > mutex_unlock(&event_storage_mutex); \ > if (ret) \ > return ret; \ > @@ -104,7 +104,7 @@ static void __always_unused ____ftrace_check_##name(void) \ > offsetof(typeof(field), \ > container.item), \ > sizeof(field.container.item), \ > - is_signed_type(type), FILTER_OTHER); \ > + is_signed_type(type), filter_type); \ > if (ret) \ > return ret; > > @@ -112,10 +112,24 @@ static void __always_unused ____ftrace_check_##name(void) \ > #define __dynamic_array(type, item) \ > ret = trace_define_field(event_call, #type, #item, \ > offsetof(typeof(field), item), \ > - 0, is_signed_type(type), FILTER_OTHER);\ > + 0, is_signed_type(type), filter_type);\ > if (ret) \ > return ret; > > +#define FILTER_TYPE_TRACE_FN FILTER_TRACE_FN > +#define FILTER_TYPE_TRACE_GRAPH_ENT FILTER_OTHER > +#define FILTER_TYPE_TRACE_GRAPH_RET FILTER_OTHER > +#define FILTER_TYPE_TRACE_CTX FILTER_OTHER > +#define FILTER_TYPE_TRACE_WAKE FILTER_OTHER > +#define FILTER_TYPE_TRACE_STACK FILTER_OTHER > +#define FILTER_TYPE_TRACE_USER_STACK FILTER_OTHER > +#define FILTER_TYPE_TRACE_BPRINT FILTER_OTHER > +#define FILTER_TYPE_TRACE_PRINT FILTER_OTHER > +#define FILTER_TYPE_TRACE_MMIO_RW FILTER_OTHER > +#define FILTER_TYPE_TRACE_MMIO_MAP FILTER_OTHER > +#define FILTER_TYPE_TRACE_BRANCH FILTER_OTHER > +#define FILTER_TYPE(arg) FILTER_TYPE_##arg > + > #undef FTRACE_ENTRY > #define FTRACE_ENTRY(name, struct_name, id, tstruct, print) \ > int \ > @@ -123,6 +137,7 @@ ftrace_define_fields_##name(struct ftrace_event_call *event_call) \ > { \ > struct struct_name field; \ > int ret; \ > + int filter_type = FILTER_TYPE(id); \ > \ > tstruct; \ > \
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