[PATCH v2 5/7] scripts: python: implement get or create frame function

[Anup Sharma <anupnewsmail@gmail.com>]

The get_or_create_frame function is responsible for retrieving or
creating a frame based on the provided frameString. If the frame
corresponding to the frameString is found in the frameMap, it is
returned. Otherwise, a new frame is created by appending relevant
information to the frameTable's 'data' array and adding the
frameString to the stringTable.

The index of the newly created frame is added to the frameMap.

Signed-off-by: Anup Sharma <anupnewsmail@gmail.com>
---
 .../scripts/python/firefox-gecko-converter.py | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/tools/perf/scripts/python/firefox-gecko-converter.py b/tools/perf/scripts/python/firefox-gecko-converter.py
index 6f69c083d3ff..d5b9fb16e520 100644
--- a/tools/perf/scripts/python/firefox-gecko-converter.py
+++ b/tools/perf/scripts/python/firefox-gecko-converter.py
@@ -77,6 +77,39 @@ def process_event(param_dict):
 				stackMap[key] = stack
 			return stack
 
+		frameMap = dict()
+		def get_or_create_frame(frameString):
+			frame = frameMap.get(frameString)
+			if frame is None:
+				frame = len(frameTable['data'])
+				location = len(stringTable)
+				stringTable.append(frameString)
+				category = KERNEL_CATEGORY_INDEX if frameString.find('kallsyms') != -1 \
+						or frameString.find('/vmlinux') != -1 \
+						or frameString.endswith('.ko)') \
+						else USER_CATEGORY_INDEX
+				implementation = None
+				optimizations = None
+				line = None
+				relevantForJS = False
+				subcategory = None
+				innerWindowID = 0
+				column = None
+
+				frameTable['data'].append([
+					location,
+					relevantForJS,
+					innerWindowID,
+					implementation,
+					optimizations,
+					line,
+					column,
+					category,
+					subcategory,
+				])
+				frameMap[frameString] = frame
+			return frame
+
 	def _addThreadSample(pid, tid, threadName, time_stamp, stack):
 		thread = thread_map.get(tid)
 		if not thread:
-- 
2.34.1