HADOOP-19616. Add bswap support for RISC-V

[leiwen2025]

Description of PR

While building Hadoop native code on the riscv64 architecture, the build fails due to missing support for bswap operations. The standard implementation relies on compiler intrinsics or platform-specific assembly which are not defined for RISC-V targets.

This results in compilation errors such as:

Error: unrecognized opcode `bswap a4'
Error: unrecognized opcode `bswap a3'

Add bswap support for RISC-V can solve the problem.

How was this patch tested?

mvn package -Pdist,native -DskipTests -Dtar

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	45m 31s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
-1 ❌	mvninstall	80m 13s	/branch-mvninstall-root.txt	root in trunk failed.
+1 💚	compile	1m 1s		trunk passed
+1 💚	mvnsite	0m 33s		trunk passed
+1 💚	shadedclient	122m 7s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 20s		the patch passed
+1 💚	compile	0m 51s		the patch passed
+1 💚	cc	0m 51s		the patch passed
+1 💚	golang	0m 51s		the patch passed
+1 💚	javac	0m 51s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	0m 21s		the patch passed
+1 💚	shadedclient	40m 18s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	2m 50s		hadoop-mapreduce-client-nativetask in the patch passed.
+1 💚	asflicense	0m 37s		The patch does not generate ASF License warnings.
		214m 11s

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/1/artifact/out/Dockerfile
GITHUB PR	#7809
Optional Tests	dupname asflicense compile cc mvnsite javac unit codespell detsecrets golang
uname	Linux bb3bde6d0dbd 5.15.0-143-generic #153-Ubuntu SMP Fri Jun 13 19:10:45 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / 3c622c7
Default Java	Red Hat, Inc.-1.8.0_412-b08
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/1/testReport/
Max. process+thread count	533 (vs. ulimit of 5500)
modules	C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask U: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/1/console
versions	git=2.9.5 maven=3.6.3
Powered by	Apache Yetus 0.14.0 https://yetus.apache.org

This message was automatically generated.

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	45m 35s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
-1 ❌	mvninstall	45m 25s	/branch-mvninstall-root.txt	root in trunk failed.
+1 💚	compile	1m 1s		trunk passed
+1 💚	mvnsite	0m 34s		trunk passed
+1 💚	shadedclient	87m 35s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 20s		the patch passed
+1 💚	compile	0m 51s		the patch passed
+1 💚	cc	0m 51s		the patch passed
+1 💚	golang	0m 51s		the patch passed
+1 💚	javac	0m 51s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	0m 22s		the patch passed
+1 💚	shadedclient	40m 34s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	2m 48s		hadoop-mapreduce-client-nativetask in the patch passed.
+1 💚	asflicense	0m 40s		The patch does not generate ASF License warnings.
		180m 11s

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/2/artifact/out/Dockerfile
GITHUB PR	#7809
Optional Tests	dupname asflicense compile cc mvnsite javac unit codespell detsecrets golang
uname	Linux 99b205f96d7c 5.15.0-143-generic #153-Ubuntu SMP Fri Jun 13 19:10:45 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / cf3caa6
Default Java	Red Hat, Inc.-1.8.0_412-b08
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/2/testReport/
Max. process+thread count	535 (vs. ulimit of 5500)
modules	C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask U: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/2/console
versions	git=2.9.5 maven=3.6.3
Powered by	Apache Yetus 0.14.0 https://yetus.apache.org

This message was automatically generated.

[leiwen2025]

Hi @ayushtkn,
This PR has been open for a while. Could you please help review it when you get a chance, or suggest someone who might be appropriate? Thanks a lot!

[ayushtkn]

LGTM

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 52s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 1s		codespell was not available.
+0 🆗	detsecrets	0m 1s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
-1 ❌	mvninstall	45m 19s	/branch-mvninstall-root.txt	root in trunk failed.
+1 💚	compile	1m 1s		trunk passed
+1 💚	mvnsite	0m 33s		trunk passed
+1 💚	shadedclient	86m 57s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 20s		the patch passed
+1 💚	compile	0m 51s		the patch passed
+1 💚	cc	0m 51s		the patch passed
+1 💚	golang	0m 51s		the patch passed
+1 💚	javac	0m 51s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	0m 21s		the patch passed
+1 💚	shadedclient	40m 19s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	2m 49s		hadoop-mapreduce-client-nativetask in the patch passed.
+1 💚	asflicense	0m 40s		The patch does not generate ASF License warnings.
		134m 28s

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/3/artifact/out/Dockerfile
GITHUB PR	#7809
Optional Tests	dupname asflicense compile cc mvnsite javac unit codespell detsecrets golang
uname	Linux 3d60d1ddd170 5.15.0-143-generic #153-Ubuntu SMP Fri Jun 13 19:10:45 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / cf3caa6
Default Java	Red Hat, Inc.-1.8.0_412-b08
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/3/testReport/
Max. process+thread count	606 (vs. ulimit of 5500)
modules	C: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask U: hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7809/3/console
versions	git=2.9.5 maven=3.6.3
Powered by	Apache Yetus 0.14.0 https://yetus.apache.org

This message was automatically generated.

[ayushtkn]

For some reason mvn install is failing in the CI, can u rebase your PR

[leiwen2025]

For some reason mvn install is failing in the CI, can u rebase your PR

Hi, I already rebased the PR yesterday.
I noticed that the mvn install error may be due to an env issue with protoc-gen-grpc-java 1.69.0, as discussed in YARN-11794.

[ERROR] PROTOC FAILED: /home/jenkins/jenkins-home/workspace/hadoop-multibranch_PR-7809/centos-7/src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/target/protoc-plugins/protoc-gen-grpc-java-1.69.0-linux-x86_64.exe: /usr/lib64/libstdc++.so.6: version CXXABI_1.3.8 not found (required by /home/jenkins/jenkins-home/workspace/hadoop-multibranch_PR-7809/centos-7/src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/target/protoc-plugins/protoc-gen-grpc-java-1.69.0-linux-x86_64.exe)
/home/jenkins/jenkins-home/workspace/hadoop-multibranch_PR-7809/centos-7/src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/target/protoc-plugins/protoc-gen-grpc-java-1.69.0-linux-x86_64.exe: /usr/lib64/libstdc++.so.6: version CXXABI_1.3.9 not found (required by /home/jenkins/jenkins-home/workspace/hadoop-multibranch_PR-7809/centos-7/src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/target/protoc-plugins/protoc-gen-grpc-java-1.69.0-linux-x86_64.exe)
/home/jenkins/jenkins-home/workspace/hadoop-multibranch_PR-7809/centos-7/src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/target/protoc-plugins/protoc-gen-grpc-java-1.69.0-linux-x86_64.exe: /usr/lib64/libstdc++.so.6: version GLIBCXX_3.4.21 not found (required by /home/jenkins/jenkins-home/workspace/hadoop-multibranch_PR-7809/centos-7/src/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-csi/target/protoc-plugins/protoc-gen-grpc-java-1.69.0-linux-x86_64.exe)
--grpc-java_out: protoc-gen-grpc-java: Plugin failed with status code 1.

Could you help resolve this? Thank you!

[leiwen2025]

LGTM

Thanks for the review and merge.