LayerTraceGenerator: fix log spam from stubbed sf

Test: sh ${ANDROID_BUILD_TOP}/frameworks/native/services/surfaceflinger/Tracing/tools/run.sh and check logcat
Bug: 253555650
Change-Id: I5ca75c1762a5b6b4946b0bd6dac9bfe1c042a18d

1 files changed, 4 insertions, 0 deletions

diff --git a/services/surfaceflinger/Tracing/tools/main.cpp b/services/surfaceflinger/Tracing/tools/main.cpp
index f3cf42d7ab..9f9ae4815b 100644
--- a/services/surfaceflinger/Tracing/tools/main.cpp
+++ b/services/surfaceflinger/Tracing/tools/main.cpp
@@ -52,6 +52,10 @@ int main(int argc, char** argv) {
     ;
     ALOGD("Generating %s...", outputLayersTracePath);
     std::cout << "Generating " << outputLayersTracePath << "\n";
+
+    // sink any log spam from the stubbed surfaceflinger
+    __android_log_set_logger([](const struct __android_log_message* /* log_message */) {});
+
     if (!LayerTraceGenerator().generate(transactionTraceFile, outputLayersTracePath)) {
         std::cout << "Error: Failed to generate layers trace " << outputLayersTracePath;
         return -1;