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Refine locating ld.config.txt

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This commit is contained in:
Mygod
2020-08-08 02:43:45 +08:00
parent f1bead4316
commit 32161d4997
2 changed files with 25 additions and 4 deletions
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24
mobile/src/main/java/be/mygod/librootkotlinx/Utils.kt
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@@ -4,13 +4,37 @@ package be.mygod.librootkotlinx
import android.annotation.SuppressLint
import android.content.Context
import android.os.Build
import android.os.Parcel
import android.os.Parcelable
import android.util.*
import androidx.annotation.RequiresApi
import kotlinx.android.parcel.Parcelize
import java.io.File
class NoShellException(cause: Throwable) : Exception("Root missing", cause)
/**
* Based on: https://android.googlesource.com/platform/bionic/+/aff9a34/linker/linker.cpp#3397
*/
@get:RequiresApi(29)
val genericLdConfigFilePath: String get() {
"/system/etc/ld.config.${Build.VERSION.SDK_INT}.txt".let { if (File(it).isFile) return it }
if (Build.VERSION.SDK_INT >= 30) "/linkerconfig/ld.config.txt".let {
check(File(it).isFile) { "failed to find generated linker configuration from \"$it\"" }
return it
}
val prop = Class.forName("android.os.SystemProperties")
if (prop.getDeclaredMethod("getBoolean", String::class.java, Boolean::class.java).invoke(null,
"ro.vndk.lite", false) as Boolean) return "/system/etc/ld.config.vndk_lite.txt"
when (val version = prop.getDeclaredMethod("get", String::class.java, String::class.java).invoke(null,
"ro.vndk.version", "") as String) {
"", "current" -> { }
else -> "/system/etc/ld.config.$version.txt".let { if (File(it).isFile) return it }
}
return "/system/etc/ld.config.txt"
}
val systemContext by lazy {
val classActivityThread = Class.forName("android.app.ActivityThread")
val activityThread = classActivityThread.getMethod("systemMain").invoke(null)