Why are compiler osx-aarch_64.exe for Apple chips and osx-x86_64.exe for Intel chips the same file?

[evil0th]

Why are protoc-gen-grpc-java compiler osx-aarch_64.exe for Apple chips and osx-x86_64.exe for Intel chips the same file?

• When I run the protobuf-maven-plugin plugin, I get an error:

[ERROR] PROTOC FAILED: /Users/xxx/Code/demo/spring-boot-grpc/target/protoc-plugins/protoc-gen-grpc-java-1.69.1-osx-aarch_64.exe: program not found or is not executable
Please specify a program using absolute path or make sure the program is available in your PATH system variable
--grpc-java_out: protoc-gen-grpc-java: Plugin failed with status code 1.

[ERROR] /Users/xxx/Code/demo/spring-boot-grpc/src/main/proto/hello.proto [0:0]: /Users/xxx/Code/demo/spring-boot-grpc/target/protoc-plugins/protoc-gen-grpc-java-1.69.1-osx-aarch_64.exe: program not found or is not executable
Please specify a program using absolute path or make sure the program is available in your PATH system variable
--grpc-java_out: protoc-gen-grpc-java: Plugin failed with status code 1.

• The osx-aarch_64.exe I downloaded from the Maven repository does not run properly and reports an error:

protoc-gen-grpc-java-1.69.1-osx-aarch_64.exe: Bad CPU type in executable

• The protoc-gen-grpc-java I installed through Homebrew can run normally under Apple chips and generate code correctly.

Please see that the Ruby source code protoc-gen-grpc-java formula installed by brew does not perform special processing on the gradle script.

  def install
    # Workaround for newer Protobuf to link to Abseil libraries
    # Ref: https://github.com/grpc/grpc-java/issues/11475
    ENV.append "CXXFLAGS", "-std=c++17"
    ENV.append "CXXFLAGS", Utils.safe_popen_read("pkgconf", "--cflags", "protobuf").chomp
    ENV.append "LDFLAGS", Utils.safe_popen_read("pkgconf", "--libs", "protobuf").chomp

    inreplace "compiler/build.gradle" do |s|
      # Avoid build errors on ARM macOS from old minimum macOS deployment
      s.gsub! '"-mmacosx-version-min=10.7",', ""
      # Avoid static linkage on Linux
      s.gsub! '"-Wl,-Bstatic"', "\"-L#{Formula["protobuf"].opt_lib}\""
      s.gsub! ', "-static-libgcc"', ""
    end

    # Fails with brew `gradle` due to animalsniffer 1.7.1
    # Ref: https://github.com/xvik/gradle-animalsniffer-plugin/issues/100
    system "./gradlew", "--no-daemon", "--project-dir=compiler", "-PskipAndroid=true", "java_pluginExecutable"
    bin.install "compiler/build/exe/java_plugin/protoc-gen-grpc-java"

    pkgshare.install "examples/src/main/proto/helloworld.proto"
  end

What is the reason why the target files of two different architectures are the same after uploading to the Maven repository?

Can this be solved so that we can run it correctly through the protobuf-maven-plugin plugin to automatically generate code?

[kannanjgithub]

Can you provide the plugin config for protobuf-maven-plugin that you use (example)?

[tliechti]

I run into the same on a Apple M4 with MacOS 15.2 while compiling https://github.com/grpc/grpc-java/examples with

 ➜  examples git:(v1.69.0) ./gradlew installDist
> Task :generateProto FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':generateProto'.
> protoc: stdout: . stderr:  ....... protoc-gen-grpc-java-1.69.0-osx-aarch_64.exe: program not found or is not executable
  Please specify a program using absolute path or make sure the program is available in your PATH system variable
  --grpc_out: protoc-gen-grpc: Plugin failed with status code 1.

File is on indicated location:

-rwxr--r--@ 1 ....  staff  6221952 22 Jan 16:25 protoc-gen-grpc-java-1.69.0-osx-aarch_64.exe`

Running it:

./protoc-gen-grpc-java-1.69.0-osx-aarch_64.exe
zsh: bad CPU type in executable: ......../protoc-gen-grpc-java-1.69.0-osx-aarch_64.exe

[evil0th]

Can you provide the plugin config for protobuf-maven-plugin that you use (example)?

maven build config:

<build>
  <plugins>
    <plugin>
      <groupId>kr.motd.maven</groupId>
      <artifactId>os-maven-plugin</artifactId>
      <version>1.7.1</version>
      <executions>
        <execution>
          <id>initialize</id>
          <phase>initialize</phase>
          <goals>
            <goal>detect</goal>
          </goals>
        </execution>
      </executions>
    </plugin>
    <plugin>
      <groupId>org.xolstice.maven.plugins</groupId>
      <artifactId>protobuf-maven-plugin</artifactId>
      <version>0.6.1</version>
      <configuration>
        <protocArtifact>com.google.protobuf:protoc:3.25.5:exe:${os.detected.classifier}</protocArtifact>
        <pluginId>grpc-java</pluginId>
        <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.69.1:exe:${os.detected.classifier}</pluginArtifact>
      </configuration>
      <executions>
        <execution>
          <id>compile</id>
          <goals>
            <goal>compile</goal>
            <goal>compile-custom</goal>
          </goals>
          <configuration>
            <pluginParameter>jakarta_omit,@generated=omit</pluginParameter>
          </configuration>
        </execution>
      </executions>
    </plugin>
  </plugins>
</build>

[evil0th]

Can you provide the plugin config for protobuf-maven-plugin that you use (example)?

Central Repository: io/grpc/protoc-gen-grpc-java/1.69.1 Files of osx-aarch_64 architecture and osx-x86_64 architecture, both md5/sha content and exe size are exactly the same.

[kannanjgithub]

This is a known issue, please refer #7690 (comment).

[evil0th]

This is a known issue, please refer #7690 (comment).

It's horrible! This problem has not been solved perfectly for several years. Homebrew already has a solution, but it seems reluctant to refer to it.

[kannanjgithub]

The linked issue is already being tracked as an enhancement and contributions are welcome also. Hence closing this issue.