how to build grpc-java for mips64el

[xzy256]

When i build bazel, it depends grpc-java-plugin. But i build grpd-java git source code get error,

20:34:20.419 [INFO] [com.google.gradle.osdetector.OsDetector] ------------------------------------------------------------------------
20:34:20.419 [INFO] [com.google.gradle.osdetector.OsDetector] Detecting the operating system and CPU architecture
20:34:20.420 [INFO] [com.google.gradle.osdetector.OsDetector] ------------------------------------------------------------------------
20:34:20.420 [INFO] [com.google.gradle.osdetector.OsDetector] os.detected.name=linux
20:34:20.420 [INFO] [com.google.gradle.osdetector.OsDetector] os.detected.arch=unknown
20:34:20.422 [DEBUG] [org.gradle.configuration.project.BuildScriptProcessor] Timing: Running the build script took 3.707 secs
20:34:20.429 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] 
20:34:20.430 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] FAILURE: Build failed with an exception.
20:34:20.430 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] 
20:34:20.430 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Where:
20:34:20.431 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Build file '/home/grpc-java/all/build.gradle' line: 31
20:34:20.431 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] 
20:34:20.431 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * What went wrong:
20:34:20.432 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] A problem occurred evaluating project ':grpc-all'.
20:34:20.432 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] > A problem occurred configuring project ':grpc-protobuf-lite'.
20:34:20.432 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]    > unknown os.arch: mips64el
20:34:20.433 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] 
20:34:20.433 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] * Try:
20:34:20.433 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] Run with --stacktrace option to get the stack trace. 
20:34:20.433 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger] 
20:34:20.434 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger] BUILD FAILED
20:34:20.434 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger] 
20:34:20.435 [LIFECYCLE] [org.gradle.internal.buildevents.BuildResultLogger] Total time: 9.424 secs

my environment:
os: fedora21
arch: mips64el
protoc: v3.3.0

Could you give me some ideas for building it?

[carl-mastrangelo]

You might take a look at a similar problem (and solution) on this issue: #2202

[carl-mastrangelo]

@xzy256 did you get it working?

[xzy256]

No. As if it is so hard for building it . During this period, i built bazel and success. When i build tensorflow , i get next error. Do i need build grpc-java plugin for building tensorflow source?

[xzy@localhost tensorflow]$ bazel build --copt=-march=native -c opt //tensorflow/tools/pip_package:build_pip_package
ERROR: /home/xzy/.cache/bazel/_bazel_xzy/c01fa588a238f7be12b727d5cfbf1a03/external/io_bazel_rules_closure/java/io/bazel/rules/closure/BUILD:62:1: error executing shell command: 
'JAR='external/local_jdk/bin/jar' OUTPUT='bazel-out/host/bin/external/io_bazel_rules_closure/java/io/bazel/rules/closure/libbuild_info_java_proto_srcjar.srcjar' PROTO_COMPILER='bazel-out/host/genfil...' failed: bash failed: 
error executing command /bin/bash -c ... (remaining 1 argument(s) skipped): 
com.google.devtools.build.lib.shell.BadExitStatusException: Process exited with status 1.
bazel-out/host/bin/external/io_bazel_rules_closure/closure/private/gensrcjar: line 75: bazel-out/host/genfiles/external/io_bazel_rules_closure/third_party/protobuf/protoc: cannot execute binary file: Exec format error
gensrcjar: proto_compiler failed

[xzy256]

I have build grpc-java success. Building patch infers build-grpc-java-mips64.patch. By the way, building and installing os-maven-plugin for mips64 support can fix unknown os.arch: mips64el error.