change stack size test to test arm device (#75814)

dev/benchmarks/macrobenchmarks/lib/src/stack_size.dart

@@ -45,12 +45,12 @@ const int kExitCodeSuccess = 0;
 final GetStackPointerCallback getStackPointer = () {
   // Makes sure we are running on an Android arm64 device.
   if (!io.Platform.isAndroid)
-    throw 'This benchmark test can only be run on Android arm64 devices.';
+    throw 'This benchmark test can only be run on Android arm devices.';
   final io.ProcessResult result = io.Process.runSync('getprop', <String>['ro.product.cpu.abi']);
   if (result.exitCode != 0)
     throw 'Failed to retrieve CPU information.';
-  if (!result.stdout.toString().contains('arm64'))
+  if (!result.stdout.toString().contains('armeabi'))
-    throw 'This benchmark test can only be run on Android arm64 devices.';
+    throw 'This benchmark test can only be run on Android arm devices.';
 
   // Creates a block of memory to store the assembly code.
   final ffi.Pointer<ffi.Void> region = mmap(ffi.nullptr, kMemorySize, kProtRead | kProtWrite,
@@ -64,10 +64,10 @@ final GetStackPointerCallback getStackPointer = () {
   region.cast<ffi.Uint8>().asTypedList(kMemorySize).setAll(
     kMemoryStartingIndex,
     <int>[
-      // "mov x0, sp"  in machine code: E0030091.
+      // "mov r0, sp"  in machine code: 0D00A0E1.
-      0xe0, 0x03, 0x00, 0x91,
+      0x0d, 0x00, 0xa0, 0xe1,
-      // "ret"         in machine code: C0035FD6.
+      // "bx lr"       in machine code: 1EFF2FE1.
-      0xc0, 0x03, 0x5f, 0xd6
+      0x1e, 0xff, 0x2f, 0xe1
     ]
   );
 

dev/devicelab/bin/tasks/android_stack_size_test.dart

@@ -7,6 +7,6 @@ import 'package:flutter_devicelab/framework/adb.dart';
 import 'package:flutter_devicelab/framework/framework.dart';
 
 Future<void> main() async {
-  deviceOperatingSystem = DeviceOperatingSystem.androidArm64;
+  deviceOperatingSystem = DeviceOperatingSystem.androidArm;
   await task(createStackSizeTest());
 }

dev/devicelab/lib/framework/adb.dart

@@ -52,7 +52,7 @@ String _findMatchId(List<String> idList, String idPattern) {
 DeviceDiscovery get devices => DeviceDiscovery();
 
 /// Device operating system the test is configured to test.
-enum DeviceOperatingSystem { android, androidArm64 ,ios, fuchsia, fake }
+enum DeviceOperatingSystem { android, androidArm, androidArm64 ,ios, fuchsia, fake }
 
 /// Device OS to test on.
 DeviceOperatingSystem deviceOperatingSystem = DeviceOperatingSystem.android;
@@ -63,6 +63,8 @@ abstract class DeviceDiscovery {
     switch (deviceOperatingSystem) {
       case DeviceOperatingSystem.android:
         return AndroidDeviceDiscovery();
+      case DeviceOperatingSystem.androidArm:
+        return AndroidDeviceDiscovery(cpu: _AndroidCPU.arm);
       case DeviceOperatingSystem.androidArm64:
         return AndroidDeviceDiscovery(cpu: _AndroidCPU.arm64);
       case DeviceOperatingSystem.ios:
@@ -158,6 +160,7 @@ abstract class Device {
 }
 
 enum _AndroidCPU {
+  arm,
   arm64,
 }
 
@@ -199,6 +202,8 @@ class AndroidDeviceDiscovery implements DeviceDiscovery {
     switch (cpu) {
       case _AndroidCPU.arm64:
         return device.isArm64();
+      case _AndroidCPU.arm:
+        return device.isArm();
     }
     return true;
   }
@@ -486,6 +491,11 @@ class AndroidDevice extends Device {
     return cpuInfo.contains('arm64');
   }
 
+  Future<bool> isArm() async {
+    final String cpuInfo = await shellEval('getprop', const <String>['ro.product.cpu.abi']);
+    return cpuInfo.contains('armeabi');
+  }
+
   Future<void> _updateDeviceInfo() async {
     String info;
     try {

dev/devicelab/lib/tasks/perf_tests.dart

@@ -503,6 +503,15 @@ class StartupTest {
           ]);
           applicationBinaryPath = '$testDirectory/build/app/outputs/flutter-apk/app-profile.apk';
           break;
+        case DeviceOperatingSystem.androidArm:
+          await flutter('build', options: <String>[
+            'apk',
+            '-v',
+            '--profile',
+            '--target-platform=android-arm',
+          ]);
+          applicationBinaryPath = '$testDirectory/build/app/outputs/flutter-apk/app-profile.apk';
+          break;
         case DeviceOperatingSystem.androidArm64:
           await flutter('build', options: <String>[
             'apk',
@@ -1031,6 +1040,7 @@ class CompileTest {
           metrics.addAll(await getSizesFromIosApp(appPath));
         break;
       case DeviceOperatingSystem.android:
+      case DeviceOperatingSystem.androidArm:
         options.insert(0, 'apk');
         options.add('--target-platform=android-arm');
         options.add('--tree-shake-icons');
@@ -1081,6 +1091,7 @@ class CompileTest {
         options.insert(0, 'ios');
         break;
       case DeviceOperatingSystem.android:
+      case DeviceOperatingSystem.androidArm:
         options.insert(0, 'apk');
         options.add('--target-platform=android-arm');
         break;