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TEST ONLY #16851

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3a9b752
Java layer use java built-in lib
kirklandsign Jan 24, 2026
c37bd6b
remove fbjni
kirklandsign Jan 24, 2026
2456286
Fix
kirklandsign Jan 24, 2026
2322d1d
Fix
kirklandsign Jan 24, 2026
49f3eaf
Fix
kirklandsign Jan 24, 2026
4d5086e
Fix
kirklandsign Jan 24, 2026
785ad96
fix
kirklandsign Jan 24, 2026
5f31ee6
demo
kirklandsign Jan 30, 2026
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2 changes: 2 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -615,6 +615,8 @@ if(EXECUTORCH_BUILD_EXTENSION_APPLE)
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/extension/apple)
endif()



if(EXECUTORCH_BUILD_EXTENSION_DATA_LOADER)
add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/extension/data_loader)
install(
Expand Down
120 changes: 97 additions & 23 deletions CMakePresets.json
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,9 @@
{
"name": "android-arm64-v8a",
"displayName": "Build executorch core and JNI bindings on android arm64-v8a",
"inherits": ["common"],
"inherits": [
"common"
],
"binaryDir": "${sourceDir}/cmake-out-android-arm64-v8a",
"cacheVariables": {
"EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/android.cmake",
Expand All @@ -18,13 +20,19 @@
"condition": {
"type": "inList",
"string": "${hostSystemName}",
"list": ["Darwin", "Linux", "Windows"]
"list": [
"Darwin",
"Linux",
"Windows"
]
}
},
{
"name": "android-x86_64",
"displayName": "Build executorch core and JNI bindings on android x86_64",
"inherits": ["common"],
"inherits": [
"common"
],
"binaryDir": "${sourceDir}/cmake-out-android-x86_64",
"cacheVariables": {
"EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/android.cmake",
Expand All @@ -33,13 +41,19 @@
"condition": {
"type": "inList",
"string": "${hostSystemName}",
"list": ["Darwin", "Linux", "Windows"]
"list": [
"Darwin",
"Linux",
"Windows"
]
}
},
{
"name": "macos",
"displayName": "Build ExecuTorch for macOS",
"inherits": ["common"],
"inherits": [
"common"
],
"generator": "Xcode",
"cacheVariables": {
"CMAKE_TOOLCHAIN_FILE": "${sourceDir}/third-party/ios-cmake/ios.toolchain.cmake",
Expand All @@ -57,7 +71,9 @@
{
"name": "ios",
"displayName": "Build ExecuTorch for iOS",
"inherits": ["common"],
"inherits": [
"common"
],
"generator": "Xcode",
"cacheVariables": {
"CMAKE_TOOLCHAIN_FILE": "${sourceDir}/third-party/ios-cmake/ios.toolchain.cmake",
Expand All @@ -75,7 +91,9 @@
{
"name": "ios-simulator",
"displayName": "Build ExecuTorch for iOS Simulator",
"inherits": ["common"],
"inherits": [
"common"
],
"generator": "Xcode",
"cacheVariables": {
"CMAKE_TOOLCHAIN_FILE": "${sourceDir}/third-party/ios-cmake/ios.toolchain.cmake",
Expand All @@ -93,7 +111,9 @@
{
"name": "linux",
"displayName": "Build ExecuTorch for Linux",
"inherits": ["common"],
"inherits": [
"common"
],
"cacheVariables": {
"CMAKE_SYSTEM_NAME": "Linux",
"EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/linux.cmake"
Expand All @@ -104,18 +124,55 @@
"rhs": "Linux"
}
},
{
"name": "jni",
"displayName": "Build ExecuTorch with JNI support",
"inherits": [
"common"
],
"cacheVariables": {
"EXECUTORCH_BUILD_EXECUTOR_RUNNER": "OFF",
"EXECUTORCH_BUILD_EXAMPLES": "OFF",
"EXECUTORCH_BUILD_HOST_JAVA": "ON",
"EXECUTORCH_BUILD_KERNELS_OPTIMIZED": "OFF",
"EXECUTORCH_BUILD_KERNELS_QUANTIZED": "OFF",
"EXECUTORCH_BUILD_DEVTOOLS": "OFF",
"EXECUTORCH_BUILD_EXTENSION_MODULE": "ON",
"EXECUTORCH_BUILD_EXTENSION_FLAT_TENSOR": "ON",
"EXECUTORCH_BUILD_EXTENSION_NAMED_DATA_MAP": "ON",
"EXECUTORCH_BUILD_EXTENSION_TENSOR": "ON",
"EXECUTORCH_BUILD_EXTENSION_DATA_LOADER": "ON",
"EXECUTORCH_BUILD_EXTENSION_RUNNER_UTIL": "ON",
"EXECUTORCH_BUILD_ANDROID_JNI": "ON",
"JAVA_HOME": "$env{JAVA_HOME}"
},
"condition": {
"type": "inList",
"string": "${hostSystemName}",
"list": [
"Linux",
"Darwin"
]
}
},
{
"name": "pybind",
"displayName": "Build pybindings exported in the wheel",
"inherits": ["common"],
"inherits": [
"common"
],
"cacheVariables": {
"EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/pybind.cmake",
"CMAKE_OSX_DEPLOYMENT_TARGET": "12.0"
},
"condition": {
"type": "inList",
"string": "${hostSystemName}",
"list": ["Darwin", "Linux", "Windows"]
"list": [
"Darwin",
"Linux",
"Windows"
]
}
},
{
Expand All @@ -131,7 +188,11 @@
"condition": {
"type": "inList",
"string": "${hostSystemName}",
"list": ["Darwin", "Linux", "Windows"]
"list": [
"Darwin",
"Linux",
"Windows"
]
}
},
{
Expand All @@ -157,7 +218,10 @@
"condition": {
"type": "inList",
"string": "${hostSystemName}",
"list": ["Linux", "Windows"]
"list": [
"Linux",
"Windows"
]
}
},
{
Expand Down Expand Up @@ -247,13 +311,19 @@
"condition": {
"type": "inList",
"string": "${hostSystemName}",
"list": ["Darwin", "Linux", "Windows"]
"list": [
"Darwin",
"Linux",
"Windows"
]
}
},
{
"name": "windows",
"displayName": "Build ExecuTorch for Windows",
"inherits": ["common"],
"inherits": [
"common"
],
"cacheVariables": {
"CMAKE_SYSTEM_NAME": "Windows",
"EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/windows.cmake"
Expand All @@ -266,18 +336,22 @@
}
},
{
"name": "zephyr",
"displayName": "Build ExecuTorch for Zephyr RTOS",
"inherits": ["common"],
"cacheVariables": {
"EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/zephyr.cmake",
"CMAKE_TOOLCHAIN_FILE": "${sourceDir}/examples/zephyr/x86_64-linux-arm-zephyr-eabi-gcc.cmake"
}
"name": "zephyr",
"displayName": "Build ExecuTorch for Zephyr RTOS",
"inherits": [
"common"
],
"cacheVariables": {
"EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/zephyr.cmake",
"CMAKE_TOOLCHAIN_FILE": "${sourceDir}/examples/zephyr/x86_64-linux-arm-zephyr-eabi-gcc.cmake"
}
},
{
"name": "arm-baremetal",
"displayName": "Build ExecuTorch for Arm baremetal",
"inherits": ["common"],
"inherits": [
"common"
],
"cacheVariables": {
"EXECUTORCH_BUILD_PRESET_FILE": "${sourceDir}/tools/cmake/preset/arm_baremetal.cmake",
"CMAKE_TOOLCHAIN_FILE": "${sourceDir}/examples/arm/ethos-u-setup/arm-none-eabi-gcc.cmake"
Expand Down Expand Up @@ -449,4 +523,4 @@
]
}
]
}
}
116 changes: 116 additions & 0 deletions examples/java/LlamaChat.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,116 @@
/*
* Copyright (c) Meta Platforms, Inc. and affiliates.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree.
*/

package com.example.executorch;

import java.util.Scanner;
import org.pytorch.executorch.extension.llm.LlmCallback;
import org.pytorch.executorch.extension.llm.LlmModule;

/**
* Interactive chat application using LlmModule for text generation.
*
* Usage: LlamaChat <path_to_model.pte> <path_to_tokenizer>
*/
public class LlamaChat {
private static final int SEQ_LEN = 512;
private static final boolean ECHO = false;
private static final float TEMPERATURE = 0.7f;

public static void main(String[] args) {
System.out.println("LlamaChat: Starting...");

if (args.length < 2) {
System.out.println("Usage: LlamaChat <path_to_model.pte> <path_to_tokenizer>");
System.exit(1);
}

String ptePath = args[0];
String tokenizerPath = args[1];

try {
System.out.println("Loading model: " + ptePath);
System.out.println("Loading tokenizer: " + tokenizerPath);

// Create the LlmModule
LlmModule module = new LlmModule(LlmModule.MODEL_TYPE_TEXT, ptePath, tokenizerPath, TEMPERATURE);

// Load the model
int loadResult = module.load();
if (loadResult != 0) {
System.err.println("Failed to load model, error code: " + loadResult);
System.exit(1);
}
System.out.println("Model loaded successfully.");
System.out.println();

// Start interactive chat loop
Scanner scanner = new Scanner(System.in);
System.out.println("=== LlamaChat ===");
System.out.println("Type your message and press Enter. Type 'quit' or 'exit' to end.");
System.out.println();

while (true) {
System.out.print("You: ");
System.out.flush();

String input = scanner.nextLine();

if (input == null || input.trim().isEmpty()) {
continue;
}

String trimmedInput = input.trim().toLowerCase();
if (trimmedInput.equals("quit") || trimmedInput.equals("exit")) {
System.out.println("Goodbye!");
break;
}

System.out.print("Assistant: ");
System.out.flush();

StringBuilder response = new StringBuilder();

// Create callback to print tokens as they are generated
LlmCallback callback = new LlmCallback() {
@Override
public void onResult(String result) {
response.append(result);

}

@Override
public void onStats(String stats) {
// Optionally print stats for debugging
// System.out.println("\n[Stats: " + stats + "]");
}
};

// Generate response
int result = module.generate(input, SEQ_LEN, callback, ECHO, TEMPERATURE);

if (result != 0) {
System.out.println("\n[Generation ended with code: " + result + "]");
}

System.out.println(response.toString());
System.out.println();
}

// Clean up
scanner.close();
module.destroy();
System.out.println("LlamaChat: Finished.");

} catch (Exception e) {
System.err.println("Error occurred:");
e.printStackTrace();
System.exit(1);
}
}
}
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