perf trace: Reduce #ifdefs for TEP_FIELD_IS_RELATIVE

Add a helper function that applies the mask to test, or returns false
if libtraceevent is too old or not present.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Eelco Chaudron <echaudro@redhat.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20230111070641.1728726-2-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-trace.c

@@ -2731,10 +2731,8 @@ static size_t trace__fprintf_tp_fields(struct trace *trace, struct evsel *evsel,
 				offset = format_field__intval(field, sample, evsel->needs_swap);
 				syscall_arg.len = offset >> 16;
 				offset &= 0xffff;
-#if LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
-				if (field->flags & TEP_FIELD_IS_RELATIVE)
+				if (tep_field_is_relative(field->flags))
 					offset += field->offset + field->size;
-#endif
 			}
 
 			val = (uintptr_t)(sample->raw_data + offset);

tools/perf/util/data-convert-bt.c

@@ -322,10 +322,8 @@ static int add_tracepoint_field_value(struct ctf_writer *cw,
 		offset = tmp_val;
 		len = offset >> 16;
 		offset &= 0xffff;
-#if LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
-		if (flags & TEP_FIELD_IS_RELATIVE)
+		if (tep_field_is_relative(flags))
 			offset += fmtf->offset + fmtf->size;
-#endif
 	}
 
 	if (flags & TEP_FIELD_IS_ARRAY) {

tools/perf/util/evsel.c

@@ -2784,10 +2784,8 @@ void *evsel__rawptr(struct evsel *evsel, struct perf_sample *sample, const char
 	if (field->flags & TEP_FIELD_IS_DYNAMIC) {
 		offset = *(int *)(sample->raw_data + field->offset);
 		offset &= 0xffff;
-#if LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
-		if (field->flags & TEP_FIELD_IS_RELATIVE)
+		if (tep_field_is_relative(field->flags))
 			offset += field->offset + field->size;
-#endif
 	}
 
 	return sample->raw_data + offset;

tools/perf/util/python.c

@@ -442,10 +442,8 @@ tracepoint_field(struct pyrf_event *pe, struct tep_format_field *field)
 			offset  = val;
 			len     = offset >> 16;
 			offset &= 0xffff;
-#if LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
-			if (field->flags & TEP_FIELD_IS_RELATIVE)
+			if (tep_field_is_relative(field->flags))
 				offset += field->offset + field->size;
-#endif
 		}
 		if (field->flags & TEP_FIELD_IS_STRING &&
 		    is_printable_array(data + offset, len)) {

tools/perf/util/scripting-engines/trace-event-perl.c

@@ -393,10 +393,8 @@ static void perl_process_tracepoint(struct perf_sample *sample,
 			if (field->flags & TEP_FIELD_IS_DYNAMIC) {
 				offset = *(int *)(data + field->offset);
 				offset &= 0xffff;
-#if LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
-				if (field->flags & TEP_FIELD_IS_RELATIVE)
+				if (tep_field_is_relative(field->flags))
 					offset += field->offset + field->size;
-#endif
 			} else
 				offset = field->offset;
 			XPUSHs(sv_2mortal(newSVpv((char *)data + offset, 0)));

tools/perf/util/scripting-engines/trace-event-python.c

@@ -994,10 +994,8 @@ static void python_process_tracepoint(struct perf_sample *sample,
 				offset  = val;
 				len     = offset >> 16;
 				offset &= 0xffff;
-#if LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
-				if (field->flags & TEP_FIELD_IS_RELATIVE)
+				if (tep_field_is_relative(field->flags))
 					offset += field->offset + field->size;
-#endif
 			}
 			if (field->flags & TEP_FIELD_IS_STRING &&
 			    is_printable_array(data + offset, len)) {

tools/perf/util/sort.c

@@ -2668,10 +2668,8 @@ static int64_t __sort__hde_cmp(struct perf_hpp_fmt *fmt,
 		tep_read_number_field(field, a->raw_data, &dyn);
 		offset = dyn & 0xffff;
 		size = (dyn >> 16) & 0xffff;
-#if LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
-		if (field->flags & TEP_FIELD_IS_RELATIVE)
+		if (tep_field_is_relative(field->flags))
 			offset += field->offset + field->size;
-#endif
 		/* record max width for output */
 		if (size > hde->dynamic_len)
 			hde->dynamic_len = size;

tools/perf/util/trace-event.h

@@ -140,4 +140,20 @@ int common_lock_depth(struct scripting_context *context);
 #define SAMPLE_FLAGS_BUF_SIZE 64
 int perf_sample__sprintf_flags(u32 flags, char *str, size_t sz);
 
+#if defined(LIBTRACEEVENT_VERSION) &&  LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
+#include <traceevent/event-parse.h>
+
+static inline bool tep_field_is_relative(unsigned long flags)
+{
+	return (flags & TEP_FIELD_IS_RELATIVE) != 0;
+}
+#else
+#include <linux/compiler.h>
+
+static inline bool tep_field_is_relative(unsigned long flags __maybe_unused)
+{
+	return false;
+}
+#endif
+
 #endif /* _PERF_UTIL_TRACE_EVENT_H */