commit 43b2b94f8fd8c156fb539fa6f4222ee98d269042
author Lalit Maganti <lalitm@google.com> Wed Jun 21 10:31:36 2023 +0100
committer Lalit Maganti <lalitm@google.com> Wed Jun 21 10:31:36 2023 +0100
tree 7ff49281353500a45d1a8ab815057adb396c6623
parent c4117aa99e3e109cd95fa0277266564eb2347ab1

protozero: implement string filtering as part of message filtering

This CL introduces support for filtering strings in traces (i.e by
redacting contents) using regexes. It also adds faster filtering
primitives for atrace which is expected to be where this code is used
the most.

Change-Id: Ie3624e4066bbd3d59fbde3225e5a368c18b46b18
Bug: 283246642

Android.bp

diff --git a/Android.bp b/Android.bp
index 590b442..446cd5e 100644
--- a/Android.bp
+++ b/Android.bp
@@ -567,6 +567,7 @@
         ":perfetto_src_protozero_filtering_bytecode_common",
         ":perfetto_src_protozero_filtering_bytecode_parser",
         ":perfetto_src_protozero_filtering_message_filter",
+        ":perfetto_src_protozero_filtering_string_filter",
         ":perfetto_src_protozero_proto_ring_buffer",
         ":perfetto_src_protozero_protozero",
         ":perfetto_src_traced_probes_android_game_intervention_list_android_game_intervention_list",
@@ -801,6 +802,7 @@
         ":perfetto_src_protozero_filtering_bytecode_common",
         ":perfetto_src_protozero_filtering_bytecode_parser",
         ":perfetto_src_protozero_filtering_message_filter",
+        ":perfetto_src_protozero_filtering_string_filter",
         ":perfetto_src_protozero_protozero",
         ":perfetto_src_tracing_client_api_without_backends",
         ":perfetto_src_tracing_common",
@@ -1208,6 +1210,7 @@
         ":perfetto_src_protozero_filtering_bytecode_generator",
         ":perfetto_src_protozero_filtering_bytecode_parser",
         ":perfetto_src_protozero_filtering_message_filter",
+        ":perfetto_src_protozero_filtering_string_filter",
         ":perfetto_src_protozero_proto_ring_buffer",
         ":perfetto_src_protozero_protozero",
         ":perfetto_src_traced_probes_android_game_intervention_list_android_game_intervention_list",
@@ -1498,6 +1501,7 @@
         ":perfetto_src_protozero_filtering_bytecode_common",
         ":perfetto_src_protozero_filtering_bytecode_parser",
         ":perfetto_src_protozero_filtering_message_filter",
+        ":perfetto_src_protozero_filtering_string_filter",
         ":perfetto_src_protozero_proto_ring_buffer",
         ":perfetto_src_protozero_protozero",
         ":perfetto_src_traced_probes_android_game_intervention_list_android_game_intervention_list",
@@ -2038,6 +2042,7 @@
         ":perfetto_src_protozero_filtering_bytecode_generator",
         ":perfetto_src_protozero_filtering_bytecode_parser",
         ":perfetto_src_protozero_filtering_message_filter",
+        ":perfetto_src_protozero_filtering_string_filter",
         ":perfetto_src_protozero_proto_ring_buffer",
         ":perfetto_src_protozero_protozero",
         ":perfetto_src_shared_lib_shared_lib",
@@ -9104,6 +9109,14 @@
     ],
 }
 
+// GN: //src/protozero/filtering:string_filter
+filegroup {
+    name: "perfetto_src_protozero_filtering_string_filter",
+    srcs: [
+        "src/protozero/filtering/string_filter.cc",
+    ],
+}
+
 // GN: //src/protozero/filtering:unittests
 filegroup {
     name: "perfetto_src_protozero_filtering_unittests",
@@ -9113,6 +9126,7 @@
         "src/protozero/filtering/filter_util_unittest.cc",
         "src/protozero/filtering/message_filter_unittest.cc",
         "src/protozero/filtering/message_tokenizer_unittest.cc",
+        "src/protozero/filtering/string_filter_unittest.cc",
     ],
 }
 
@@ -12080,6 +12094,7 @@
         ":perfetto_src_protozero_filtering_bytecode_parser",
         ":perfetto_src_protozero_filtering_filter_util",
         ":perfetto_src_protozero_filtering_message_filter",
+        ":perfetto_src_protozero_filtering_string_filter",
         ":perfetto_src_protozero_filtering_unittests",
         ":perfetto_src_protozero_proto_ring_buffer",
         ":perfetto_src_protozero_protozero",
@@ -12520,6 +12535,7 @@
         ":perfetto_src_protozero_filtering_bytecode_common",
         ":perfetto_src_protozero_filtering_bytecode_parser",
         ":perfetto_src_protozero_filtering_message_filter",
+        ":perfetto_src_protozero_filtering_string_filter",
         ":perfetto_src_protozero_proto_ring_buffer",
         ":perfetto_src_protozero_protozero",
         ":perfetto_src_traced_probes_android_game_intervention_list_android_game_intervention_list",
@@ -13272,6 +13288,7 @@
         ":perfetto_src_protozero_filtering_bytecode_common",
         ":perfetto_src_protozero_filtering_bytecode_parser",
         ":perfetto_src_protozero_filtering_message_filter",
+        ":perfetto_src_protozero_filtering_string_filter",
         ":perfetto_src_protozero_protozero",
         ":perfetto_src_traced_probes_ftrace_ftrace_procfs",
         ":perfetto_src_traced_probes_packages_list_packages_list_parser",