[Backport] [2.x] add support for ppc64le architecture (#5459)

CHANGELOG.md

@@ -16,6 +16,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Adds support for minimum compatible version for extensions ([#6003](https://github.com/opensearch-project/OpenSearch/pull/6003))
 - Add a guardrail to limit maximum number of shard on the cluster ([#6143](https://github.com/opensearch-project/OpenSearch/pull/6143))
 - Add cancellation of in-flight SearchTasks based on resource consumption ([#5606](https://github.com/opensearch-project/OpenSearch/pull/5605))
+- Add support for ppc64le architecture ([#5459](https://github.com/opensearch-project/OpenSearch/pull/5459))
 
 ### Dependencies
 - Update nebula-publishing-plugin to 19.2.0 ([#5704](https://github.com/opensearch-project/OpenSearch/pull/5704))

buildSrc/src/main/java/org/opensearch/gradle/Architecture.java

@@ -36,7 +36,8 @@ public enum Architecture {
 
     X64,
     ARM64,
-    S390X;
+    S390X,
+    PPC64LE;
 
     public static Architecture current() {
         final String architecture = System.getProperty("os.arch", "");
@@ -48,6 +49,8 @@ public static Architecture current() {
                 return ARM64;
             case "s390x":
                 return S390X;
+            case "ppc64le":
+                return PPC64LE;
             default:
                 throw new IllegalArgumentException("can not determine architecture from [" + architecture + "]");
         }

buildSrc/src/main/java/org/opensearch/gradle/DistributionDownloadPlugin.java

@@ -273,6 +273,9 @@ private String dependencyNotation(OpenSearchDistribution distribution) {
                     case S390X:
                         classifier = ":" + distribution.getPlatform() + "-s390x";
                         break;
+                    case PPC64LE:
+                        classifier = ":" + distribution.getPlatform() + "-ppc64le";
+                        break;
                     default:
                         throw new IllegalArgumentException("Unsupported architecture: " + distribution.getArchitecture());
                 }

buildSrc/src/main/java/org/opensearch/gradle/Jdk.java

@@ -49,7 +49,9 @@
 
 public class Jdk implements Buildable, Iterable<File> {
 
-    private static final List<String> ALLOWED_ARCHITECTURES = Collections.unmodifiableList(Arrays.asList("aarch64", "x64", "s390x"));
+    private static final List<String> ALLOWED_ARCHITECTURES = Collections.unmodifiableList(
+        Arrays.asList("aarch64", "x64", "s390x", "ppc64le")
+    );
     private static final List<String> ALLOWED_VENDORS = Collections.unmodifiableList(Arrays.asList("adoptium", "adoptopenjdk", "openjdk"));
     private static final List<String> ALLOWED_PLATFORMS = Collections.unmodifiableList(
         Arrays.asList("darwin", "freebsd", "linux", "mac", "windows")

buildSrc/src/test/java/org/opensearch/gradle/ArchitectureTests.java

@@ -19,6 +19,7 @@ public void testCurrentArchitecture() {
         assertEquals(Architecture.X64, currentArchitecture("x86_64"));
         assertEquals(Architecture.ARM64, currentArchitecture("aarch64"));
         assertEquals(Architecture.S390X, currentArchitecture("s390x"));
+        assertEquals(Architecture.PPC64LE, currentArchitecture("ppc64le"));
     }
 
     public void testInvalidCurrentArchitecture() {

buildSrc/src/test/java/org/opensearch/gradle/JdkDownloadPluginTests.java

@@ -108,7 +108,7 @@ public void testUnknownArchitecture() {
             "11.0.2+33",
             "linux",
             "unknown",
-            "unknown architecture [unknown] for jdk [testjdk], must be one of [aarch64, x64, s390x]"
+            "unknown architecture [unknown] for jdk [testjdk], must be one of [aarch64, x64, s390x, ppc64le]"
         );
     }
 

distribution/archives/build.gradle

@@ -167,6 +167,15 @@ distribution_archives {
     }
   }
 
+  // Should really be `no-jdk-linux-ppc64le` as it ships without a JDK, however it seems that the build can't handle
+  // the absence of the `linux-ppc64le` target.
+  linuxPpc64leTar {
+    archiveClassifier = 'linux-ppc64le'
+    content {
+      archiveFiles(modulesFiles('linux-ppc64le'), 'tar', 'linux', 'ppc64le', false)
+    }
+  }
+
   windowsZip {
     archiveClassifier = 'windows-x64'
     content {

distribution/build.gradle

@@ -280,7 +280,7 @@ configure(subprojects.findAll { ['archives', 'packages'].contains(it.name) }) {
   // Setup all required JDKs
   project.jdks {
     ['darwin', 'linux', 'windows'].each { platform ->
-      (platform == 'linux' || platform == 'darwin' ? ['x64', 'aarch64', 's390x'] : ['x64']).each { architecture ->
+      (platform == 'linux' || platform == 'darwin' ? ['x64', 'aarch64', 's390x', 'ppc64le'] : ['x64']).each { architecture ->
         "bundled_${platform}_${architecture}" {
           it.platform = platform
           it.version = VersionProperties.getBundledJdk(platform)
@@ -353,7 +353,7 @@ configure(subprojects.findAll { ['archives', 'packages'].contains(it.name) }) {
           }
         }
         def buildModules = buildModulesTaskProvider
-        List excludePlatforms = ['darwin-x64', 'freebsd-x64', 'linux-x64', 'linux-arm64', 'linux-s390x', 'windows-x64', 'darwin-arm64']
+        List excludePlatforms = ['darwin-x64', 'freebsd-x64', 'linux-x64', 'linux-arm64', 'linux-s390x', 'linux-ppc64le', 'windows-x64', 'darwin-arm64']
         if (platform != null) {
           excludePlatforms.remove(excludePlatforms.indexOf(platform))
         } else {

distribution/docker/build.gradle

@@ -28,12 +28,14 @@ testFixtures.useFixture()
 configurations {
   arm64DockerSource
   s390xDockerSource
+  ppc64leDockerSource
   dockerSource
 }
 
 dependencies {
   arm64DockerSource project(path: ":distribution:archives:linux-arm64-tar", configuration:"default")
   s390xDockerSource project(path: ":distribution:archives:linux-s390x-tar", configuration:"default")
+  ppc64leDockerSource project(path: ":distribution:archives:linux-ppc64le-tar", configuration:"default")
   dockerSource project(path: ":distribution:archives:linux-tar", configuration:"default")
 }
 
@@ -46,6 +48,8 @@ ext.expansions = { Architecture architecture, DockerBase base, boolean local ->
       classifier = "linux-x64"
     } else if (architecture == Architecture.S390X) {
       classifier = "linux-s390x"
+    } else if (architecture == Architecture.PPC64LE) {
+      classifier = "linux-ppc64le"
     } else {
       throw new IllegalArgumentException("Unsupported architecture [" + architecture + "]")
     }
@@ -90,13 +94,15 @@ private static String buildPath(Architecture architecture, DockerBase base) {
   return 'build/' +
     (architecture == Architecture.ARM64 ? 'arm64-' : '') +
     (architecture == Architecture.S390X ? 's390x-' : '') +
+    (architecture == Architecture.PPC64LE ? 'ppc64le-' : '') +
     'docker'
 }
 
 private static String taskName(String prefix, Architecture architecture, DockerBase base, String suffix) {
   return prefix +
     (architecture == Architecture.ARM64 ? 'Arm64' : '') +
     (architecture == Architecture.S390X ? 'S390x' : '') +
+    (architecture == Architecture.PPC64LE ? 'Ppc64le' : '') +
     suffix
 }
 
@@ -135,6 +141,8 @@ void addCopyDockerContextTask(Architecture architecture, DockerBase base) {
       from configurations.arm64DockerSource
     } else if (architecture == Architecture.S390X) {
       from configurations.s390xDockerSource
+    } else if (architecture == Architecture.PPC64LE) {
+      from configurations.ppc64leDockerSource
     } else {
       from configurations.dockerSource
     }

distribution/docker/docker-ppc64le-export/build.gradle

@@ -0,0 +1,12 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * The OpenSearch Contributors require contributions made to
+ * this file be licensed under the Apache-2.0 license or a
+ * compatible open source license.
+ *
+*/
+
+// This file is intentionally blank. All configuration of the
+// export is done in the parent project.

server/src/main/java/org/opensearch/bootstrap/SystemCallFilter.java

@@ -260,6 +260,7 @@ static class Arch {
         m.put("amd64", new Arch(0xC000003E, 0x3FFFFFFF, 57, 58, 59, 322, 317));
         m.put("aarch64", new Arch(0xC00000B7, 0xFFFFFFFF, 1079, 1071, 221, 281, 277));
         m.put("s390x", new Arch(0x80000016, 0xFFFFFFFF, 2, 190, 11, 354, 348));
+        m.put("ppc64le", new Arch(0xC0000015, 0xFFFFFFFF, 2, 189, 11, 362, 358));
         ARCHITECTURES = Collections.unmodifiableMap(m);
     }
 

settings.gradle

@@ -49,12 +49,14 @@ List projects = [
   'distribution:archives:linux-arm64-tar',
   'distribution:archives:no-jdk-linux-arm64-tar',
   'distribution:archives:linux-s390x-tar',
+  'distribution:archives:linux-ppc64le-tar',
   'distribution:archives:linux-tar',
   'distribution:archives:no-jdk-linux-tar',
   'distribution:docker',
   'distribution:docker:docker-arm64-build-context',
   'distribution:docker:docker-arm64-export',
   'distribution:docker:docker-s390x-export',
+  'distribution:docker:docker-ppc64le-export',
   'distribution:docker:docker-build-context',
   'distribution:docker:docker-export',
   'distribution:packages:arm64-deb',