sm6225-common: Add init extension to override ro.carrier

Change-Id: I82ec6b0d2293dc13524660fd0e2539f08ced2f9f

BoardConfigCommon.mk

@@ -66,6 +66,9 @@ DEVICE_MANIFEST_FILE := $(COMMON_PATH)/manifest.xml
 DEVICE_MATRIX_FILE := $(COMMON_PATH)/compatibility_matrix.xml
 ODM_MANIFEST_FILES := $(COMMON_PATH)/manifest-qva.xml
 
+# Init
+TARGET_INIT_VENDOR_LIB := //$(COMMON_PATH):libinit_sm6225
+
 # Kernel
 BOARD_BOOT_HEADER_VERSION := 3
 BOARD_INCLUDE_DTB_IN_BOOTIMG := true

libinit/Android.bp

@@ -0,0 +1,13 @@
+//
+// Copyright (C) 2022 The LineageOS Project
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+cc_library_static {
+    name: "libinit_sm6225",
+    srcs: ["init_sm6225.cpp"],
+    recovery_available: true,
+    include_dirs: ["system/core/init"],
+    shared_libs: ["libbase"]
+}

libinit/init_sm6225.cpp

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2022 The LineageOS Project
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <android-base/properties.h>
+#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
+#include <sys/_system_properties.h>
+
+#include "vendor_init.h"
+
+using android::base::GetProperty;
+
+namespace {
+void PropertyOverride(const std::string& name, const std::string& value, bool add = true) {
+    auto pi = const_cast<prop_info*>(__system_property_find(name.c_str()));
+
+    if (pi != nullptr) {
+        __system_property_update(pi, value.c_str(), value.size());
+    } else if (add) {
+        __system_property_add(name.c_str(), name.size(), value.c_str(), value.size());
+    }
+}
+};  // anonymous namespace
+
+void vendor_load_properties() {
+    std::string value = GetProperty("ro.boot.carrier", "");
+    if (!value.empty()) PropertyOverride("ro.carrier", value);
+}