Add riscv64 support

Co-authored-by: gong-flying <gongxiaofei24@iscas.ac.cn>

Author: 17999824wyj

buildscripts/grpc-java-artifacts/Dockerfile.multiarch.base

@@ -9,6 +9,7 @@ RUN export DEBIAN_FRONTEND=noninteractive && \
         curl \
         g++-aarch64-linux-gnu \
         g++-powerpc64le-linux-gnu \
+        g++-riscv64-linux-gnu \
         openjdk-8-jdk \
         pkg-config \
         && \

buildscripts/kokoro/linux_artifacts.sh

@@ -21,3 +21,5 @@ trap spongify_logs EXIT
 #   internal compiler error: output_operand: invalid %-code
 "$GRPC_JAVA_DIR"/buildscripts/run_in_docker.sh grpc-java-artifacts-ubuntu2004 env \
   SKIP_TESTS=true ARCH=s390_64 /grpc-java/buildscripts/kokoro/unix.sh
+"$GRPC_JAVA_DIR"/buildscripts/run_in_docker.sh grpc-java-artifacts-multiarch env \
+  SKIP_TESTS=true ARCH=riscv64 /grpc-java/buildscripts/kokoro/unix.sh

buildscripts/kokoro/unix.sh

@@ -13,6 +13,8 @@
 #  ARCH=ppcle_64 ./buildscripts/kokoro/unix.sh
 # For s390x arch:
 #  ARCH=s390_64 ./buildscripts/kokoro/unix.sh
+# For riscv64 arch:
+#  ARCH=riscv_64 ./buildscripts/kokoro/unix.sh
 
 # This script assumes `set -e`. Removing it may lead to undefined behavior.
 set -exu -o pipefail
@@ -89,7 +91,7 @@ fi
 LOCAL_MVN_TEMP=$(mktemp -d)
 # Note that this disables parallel=true from GRADLE_FLAGS
 if [[ -z "${ALL_ARTIFACTS:-}" ]]; then
-  if [[ "$ARCH" = "aarch_64" || "$ARCH" = "ppcle_64" || "$ARCH" = "s390_64" ]]; then
+  if [[ "$ARCH" = "aarch_64" || "$ARCH" = "ppcle_64" || "$ARCH" = "s390_64" || "$ARCH" = "riscv64" ]]; then
     GRADLE_FLAGS+=" -x grpc-compiler:generateTestProto -x grpc-compiler:generateTestLiteProto"
     GRADLE_FLAGS+=" -x grpc-compiler:testGolden -x grpc-compiler:testLiteGolden"
     GRADLE_FLAGS+=" -x grpc-compiler:testDeprecatedGolden -x grpc-compiler:testDeprecatedLiteGolden"

buildscripts/kokoro/upload_artifacts.sh

@@ -40,6 +40,9 @@ LOCAL_OTHER_ARTIFACTS="$KOKORO_GFILE_DIR"/github/grpc-java/artifacts/
 # for linux s390x platform
 [[ "$(find "$LOCAL_MVN_ARTIFACTS" -type f -iname 'protoc-gen-grpc-java-*-linux-s390_64.exe' | wc -l)" != '0' ]]
 
+# for linux riscv64 platform
+[[ "$(find "$LOCAL_MVN_ARTIFACTS" -type f -iname 'protoc-gen-grpc-java-*-linux-riscv64.exe' | wc -l)" != '0' ]]
+
 # from macos job:
 [[ "$(find "$LOCAL_MVN_ARTIFACTS" -type f -iname 'protoc-gen-grpc-java-*-osx-x86_64.exe' | wc -l)" != '0' ]]
 # copy all x86 artifacts to aarch until native artifacts are built

buildscripts/make_dependencies.sh

@@ -55,6 +55,8 @@ else
       GCC_ARCH=s390x-linux-gnu
     elif [[ "$ARCH" == loongarch_64 ]]; then
       GCC_ARCH=loongarch64-unknown-linux-gnu
+    elif [[ "$ARCH" == riscv* ]]; then
+      GCC_ARCH=riscv64-unknown-linux-gnu
     else
       echo "Unknown architecture: $ARCH"
       exit 1

compiler/build.gradle

@@ -63,6 +63,7 @@ model {
                 linker.executable = 's390x-linux-gnu-g++'
             }
             target("loongarch_64")
+            target("riscv64")
         }
         clang(Clang) {
             target("aarch_64") {}
@@ -76,6 +77,7 @@ model {
         aarch_64 { architecture "aarch_64" }
         s390_64 { architecture "s390_64" }
         loongarch_64 { architecture "loongarch_64" }
+        riscv64 { architecture "riscv64" }
     }
 
     components {
@@ -86,7 +88,8 @@ model {
                 'ppcle_64',
                 'aarch_64',
                 's390_64',
-                'loongarch_64'
+                'loongarch_64',
+                'riscv64'
             ]) {
                 // If arch is not within the defined platforms, we do not specify the
                 // targetPlatform so that Gradle will choose what is appropriate.

compiler/check-artifact.sh

@@ -63,6 +63,8 @@ checkArch ()
         assertEq "$format" "elf64-little" $LINENO
       elif [[ "$ARCH" == loongarch_64 ]]; then
         echo $format
+      elif [[ "$ARCH" == riscv64 ]]; then
+        assertEq "$format" "elf64-littleriscv" $LINENO
 	assertEq "$format" "elf64-loongarch" $LINENO
       elif [[ "$ARCH" == ppcle_64 ]]; then
         format="$(powerpc64le-linux-gnu-objdump -f "$1" | grep -o "file format .*$" | grep -o "[^ ]*$")"
@@ -121,6 +123,8 @@ checkDependencies ()
       white_list="${white_list}\|libm\.so\.6"
     elif [[ "$ARCH" == aarch_64 ]]; then
       white_list="${white_list}\|ld-linux-aarch64\.so\.1"
+    elif [[ "$ARCH" == riscv64 ]]; then
+      white_list="libm\.so\.6\|libc\.so\.6\|ld-linux-riscv64-lp64d\.so\.1"
     fi
   elif [[ "$OS" == osx ]]; then
     dump_cmd='otool -L '"$1"' | fgrep dylib'