Change bash script to C++ implementation
Bug: 287884860
Test: adb shell dumpsys android.hardware.dumpstate.IDumpstateDevice/default dump_memory
Change-Id: Ifd6e7b19d1aaa8ca4e9d5b50902d4283dee9dffb
diff --git a/soc/dump_memory.cpp b/soc/dump_memory.cpp
new file mode 100644
index 0000000..1528f73
--- /dev/null
+++ b/soc/dump_memory.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <dump/pixel_dump.h>
+
+#include <android-base/file.h>
+#include <stdio.h>
+#include <log/log.h>
+
+char* concat(char* result, const char* one, const char* two){
+ strcpy(result, one);
+ strcat(result, two);
+ return result;
+}
+
+void iterate(const char* path){
+ dirent *entry, *entry2;
+ char result[100], base[100];
+
+ std::unique_ptr<DIR, decltype(&closedir)> ion(opendir(path), closedir);
+ if (!ion) {
+ ALOGE("Fail To Open Dir %s", path);
+ return;
+ }
+ while ((entry = readdir(ion.get())) != nullptr) {
+ if(entry->d_name[0] == '.') {
+ continue;
+ }
+ strcpy(base, path);
+ strcat(base, entry->d_name);
+ strcat(base, "/");
+ std::unique_ptr<DIR, decltype(&closedir)> ion2(opendir(base), closedir);
+ if (!ion2) {
+ ALOGE("Fail To Open Dir %s\n", base);
+ return;
+ }
+ while ((entry2 = readdir(ion2.get())) != nullptr) {
+ if(entry2->d_name[0] == '.') {
+ continue;
+ }
+ dumpFileContent(entry2->d_name, concat(result, base, entry2->d_name));
+ }
+ }
+ return;
+}
+
+// Dump memory.
+int main() {
+ dirent *entry;
+ char result[100];
+
+ printf("------ ION HEAPS ------\n");
+ iterate("/d/ion/");
+
+ dumpFileContent("dmabuf info", "/d/dma_buf/bufinfo");
+ dumpFileContent("Page Pinner - longterm pin", "/sys/kernel/debug/page_pinner/buffer");
+
+ printf("------ CMA info ------\n");
+ std::unique_ptr<DIR, decltype(&closedir)> cmadebug(opendir("/sys/kernel/debug/cma/"), closedir);
+ if (!cmadebug) {
+ ALOGE("Fail To Open Dir /sys/kernel/debug/cma/");
+ } else {
+ while ((entry = readdir(cmadebug.get())) != nullptr) {
+ if(entry->d_name[0] == '.') {
+ continue;
+ }
+ dumpFileContent("count", concat(result, concat(result, "/sys/kernel/debug/cma/", entry->d_name), "/count"));
+ dumpFileContent("used", concat(result, concat(result, "/sys/kernel/debug/cma/", entry->d_name), "/used"));
+ dumpFileContent("bitmap", concat(result, concat(result, "/sys/kernel/debug/cma/", entry->d_name), "/bitmap"));
+ }
+ }
+
+ printf("------ Pixel CMA stat ------\n");
+ iterate("/sys/kernel/pixel_stat/mm/cma/");
+
+ dumpFileContent("Pixel Trace", "/sys/kernel/tracing/instances/pixel/trace");
+ return 0;
+}
+