From f679a720b0e4005805269cd5b3ac124be87cd0f2 Mon Sep 17 00:00:00 2001
From: roynatech2544 <whiteshell2544@naver.com>
Date: Tue, 14 Dec 2021 13:38:31 +0900
Subject: [PATCH] universal7885: add cc binary for logging

Signed-off-by: roynatech2544 <whiteshell2544@naver.com>
---
 universal7885-common/debug/Android.bp         | 29 ++++++++++++
 universal7885-common/debug/Kmsg.cpp           | 44 +++++++++++++++++++
 universal7885-common/debug/Logcat.cpp         | 42 ++++++++++++++++++
 universal7885-common/debug/Main.cpp           |  7 +++
 .../debug/init.debug_daemon.rc                | 14 ++++++
 5 files changed, 136 insertions(+)
 create mode 100644 universal7885-common/debug/Android.bp
 create mode 100644 universal7885-common/debug/Kmsg.cpp
 create mode 100644 universal7885-common/debug/Logcat.cpp
 create mode 100644 universal7885-common/debug/Main.cpp
 create mode 100644 universal7885-common/debug/init.debug_daemon.rc

diff --git a/universal7885-common/debug/Android.bp b/universal7885-common/debug/Android.bp
new file mode 100644
index 0000000..0a1458d
--- /dev/null
+++ b/universal7885-common/debug/Android.bp
@@ -0,0 +1,29 @@
+//
+// Copyright (C) 2021 Soo Hwan Na "Royna"
+//
+// 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.
+//
+
+cc_binary {
+    name: "debug_daemon",
+    vendor: true,
+    srcs: [
+         "Kmsg.cpp",
+         "Logcat.cpp",
+         "Main.cpp",
+    ],
+    shared_libs: [
+        "liblog",
+    ],
+    init_rc: ["init.debug_daemon.rc"],
+}
diff --git a/universal7885-common/debug/Kmsg.cpp b/universal7885-common/debug/Kmsg.cpp
new file mode 100644
index 0000000..49d941e
--- /dev/null
+++ b/universal7885-common/debug/Kmsg.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2021 Soo Hwan Na "Royna"
+ *
+ * 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.
+ */
+
+#define KMSG_PATH "/proc/kmsg"
+#define CHECK_KMSG "/data/debug/kmsg"
+#define WRITE_KMSG "/data/debug/logs/kmsg.txt"
+#define LOG_TAG "DebugKmsgDaemon"
+
+#include <fstream> 
+#include <log/log.h>
+
+bool check_data(){
+    std::ifstream datafile(CHECK_KMSG);
+    if(datafile.good()){
+    	datafile.close();
+        ALOGI("Found %s, logging...", CHECK_KMSG);
+        return true;
+    }else{
+        ALOGW("Couldn't find %s, not logging...", CHECK_KMSG);
+        return false;
+    }
+}
+
+void copy_kmsg(){
+    if(check_data()){
+    	std::ifstream readfile(KMSG_PATH);
+    	std::ofstream writefile(WRITE_KMSG);
+    	writefile << readfile.rdbuf();
+    }
+}
+
diff --git a/universal7885-common/debug/Logcat.cpp b/universal7885-common/debug/Logcat.cpp
new file mode 100644
index 0000000..8477342
--- /dev/null
+++ b/universal7885-common/debug/Logcat.cpp
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2021 Soo Hwan Na "Royna"
+ *
+ * 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.
+ */
+
+#define CHECK_LOGCAT "/data/debug/logcat"
+#define WRITE_LOGCAT "/data/debug/logs/logcat.txt"
+#define LOG_TAG "DebugLogcatDaemon"
+
+#include <fstream> 
+#include <log/log.h>
+#include <iostream>
+
+bool check_data(){
+    std::ifstream datafile(CHECK_KMSG);
+    if(datafile.good()){
+    	datafile.close();
+        ALOGI("Found %s, logging...", CHECK_KMSG);
+        return true;
+    }else{
+        ALOGW("Couldn't find %s, not logging...", CHECK_KMSG);
+        return false;
+    }
+}
+
+void copy_logcat(){
+    if(check_data()){
+    	system("/system/bin/logcat -f /data/debug/logs/logcat.txt");
+    }
+}
+
diff --git a/universal7885-common/debug/Main.cpp b/universal7885-common/debug/Main.cpp
new file mode 100644
index 0000000..511ef56
--- /dev/null
+++ b/universal7885-common/debug/Main.cpp
@@ -0,0 +1,7 @@
+void copy_kmsg();
+void copy_logcat();
+int main(){
+    copy_kmsg();
+    copy_logcat();
+    return 0;
+}
diff --git a/universal7885-common/debug/init.debug_daemon.rc b/universal7885-common/debug/init.debug_daemon.rc
new file mode 100644
index 0000000..54dd883
--- /dev/null
+++ b/universal7885-common/debug/init.debug_daemon.rc
@@ -0,0 +1,14 @@
+service debug_daemon /vendor/bin/debug_daemon
+    user root
+    group system
+    oneshot
+    disabled
+
+on fs
+      mkdir /data/debug 0755 root system encryption=None
+      mkdir /data/debug/logs 0755 root system
+      rm /data/debug/logcat.txt
+      rm /data/debug/kmsg.txt
+
+on property:sys.boot_completed=1
+      start debug_daemon