Add busybox to source

.gitmodules

@@ -13,3 +13,6 @@
 [submodule "MagiskManager"]
 	path = MagiskManager
 	url = https://github.com/topjohnwu/MagiskManager.git
+[submodule "jni/busybox"]
+	path = jni/busybox
+	url = https://github.com/topjohnwu/ndk-busybox.git

build.py

@@ -58,7 +58,7 @@ def build_binary(args):
 	header('* Building Magisk binaries')
 
 	ndk_build = os.path.join(os.environ['ANDROID_HOME'], 'ndk-bundle', 'ndk-build')
-	debug_flag = '' if args.release else '-DDEBUG'
+	debug_flag = '' if args.release else '-DMAGISK_DEBUG'
 	proc = subprocess.run('{} APP_CFLAGS=\"-DMAGISK_VERSION=\\\"{}\\\" -DMAGISK_VER_CODE={} {}\" -j{}'.format(
 		ndk_build, args.versionString, args.versionCode, debug_flag, multiprocessing.cpu_count()), shell=True)
 	if proc.returncode != 0:

jni/Android.mk

@@ -39,6 +39,7 @@ LOCAL_SRC_FILES := \
 	su/su_socket.c
 
 LOCAL_CFLAGS := -Wno-implicit-exception-spec-mismatch
+LOCAL_CPPFLAGS := -std=c++11
 LOCAL_LDLIBS := -llog
 
 include $(BUILD_EXECUTABLE)
@@ -51,3 +52,10 @@ include jni/selinux/libsepol/Android.mk
 
 # Build magiskboot
 include jni/magiskboot/Android.mk
+
+# Build busybox (32-bit only)
+ifneq ($(TARGET_ARCH_ABI), x86_64)
+ifneq ($(TARGET_ARCH_ABI), arm64-v8a)
+include jni/busybox/Android.mk
+endif
+endif

jni/Application.mk

@@ -1,4 +1,2 @@
 APP_ABI := x86 x86_64 armeabi-v7a arm64-v8a
 APP_PLATFORM := android-21
-APP_UNIFIED_HEADERS := true
-APP_CPPFLAGS += -std=c++11

jni/busybox

@@ -0,0 +1 @@
+Subproject commit 2178671c6ef5322f2695cb0ee56df4195d8218ae

jni/daemon/bootstages.c

@@ -25,7 +25,7 @@
 static char *buf, *buf2;
 static struct vector module_list;
 
-#ifdef DEBUG
+#ifdef MAGISK_DEBUG
 static int debug_log_pid, debug_log_fd;
 #endif
 
@@ -484,7 +484,7 @@ void post_fs_data(int client) {
 	if (!check_data())
 		goto unblock;
 
-#ifdef DEBUG
+#ifdef MAGISK_DEBUG
 	// Start debug logs in new process
 	debug_log_fd = xopen(DEBUG_LOG, O_WRONLY | O_CREAT | O_CLOEXEC | O_TRUNC, 0644);
 	char *const command[] = { "logcat", "-v", "brief", NULL };
@@ -773,7 +773,7 @@ void late_start(int client) {
 	buf = buf2 = NULL;
 	vec_deep_destroy(&module_list);
 
-#ifdef DEBUG
+#ifdef MAGISK_DEBUG
 	// Stop recording the boot logcat after every boot task is done
 	kill(debug_log_pid, SIGTERM);
 	waitpid(debug_log_pid, NULL, 0);

jni/include/magisk.h

@@ -58,7 +58,7 @@ static inline void do_nothing() {}
 // Dummy function to depress debug message
 static inline void stub(const char *fmt, ...) {}
 
-#ifdef DEBUG
+#ifdef MAGISK_DEBUG
 #define LOGD(...)  __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)
 #else
 #define LOGD(...)  stub(__VA_ARGS__)