dumpstate: Dump pixel specific trace events at bugreport am: 31883f3edc am: a206af9907

Original change: https://googleplex-android-review.googlesource.com/c/device/google/gs201/+/20413970

Change-Id: Ibfa19e668a916893915ef96073d23d317ed8726c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

dumpstate/Dumpstate.cpp

@@ -233,6 +233,7 @@ Dumpstate::Dumpstate()
         { "display", [this](int fd) { dumpDisplaySection(fd); } },
         { "misc", [this](int fd) { dumpMiscSection(fd); } },
         { "led", [this](int fd) { dumpLEDSection(fd); } },
+        { "pixel-trace", [this](int fd) { dumpPixelTraceSection(fd); } },
     },
   mLogSections{
         { "modem", [this](int fd, const std::string &destDir) { dumpModemLogs(fd, destDir); } },
@@ -1150,6 +1151,10 @@ void Dumpstate::dumpLogSection(int fd, int fd_bin)
     RunCommandToFd(fd, "RM LOG", { "/vendor/bin/rm", logCombined.c_str()}, CommandOptions::WithTimeout(2).Build());
 }
 
+void Dumpstate::dumpPixelTraceSection(int fd) {
+    DumpFileToFd(fd, "Pixel trace", "/sys/kernel/tracing/instances/pixel/trace");
+}
+
 ndk::ScopedAStatus Dumpstate::dumpstateBoard(const std::vector<::ndk::ScopedFileDescriptor>& in_fds,
                                              IDumpstateDevice::DumpstateMode in_mode,
                                              int64_t in_timeoutMillis) {