Enable 'riscv64' arch

Update the various arches (jit, sa, shenandoah, and zgc) to riscv64.

(Based on:
2cd9e57c3d)

Resolves: OPENJDK-3850

Thanks: Songsong Zhang <U2FsdGVkX1@gmail.com>
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>

java-21-openjdk.spec

@@ -126,7 +126,7 @@
 # Set of architectures for which we build fastdebug builds
 %global fastdebug_arches x86_64 ppc64le aarch64
 # Set of architectures with a Just-In-Time (JIT) compiler
-%global jit_arches      %{arm} %{aarch64} %{ix86} %{power64} s390x sparcv9 sparc64 x86_64
+%global jit_arches      %{arm} %{aarch64} %{ix86} %{power64} s390x sparcv9 sparc64 x86_64 riscv64
 # Set of architectures which use the Zero assembler port (!jit_arches)
 %global zero_arches ppc s390
 # Set of architectures which run a full bootstrap cycle
@@ -136,15 +136,15 @@
 # Set of architectures with a Ahead-Of-Time (AOT) compiler
 %global aot_arches      x86_64 %{aarch64}
 # Set of architectures which support the serviceability agent
-%global sa_arches       %{ix86} x86_64 sparcv9 sparc64 %{aarch64} %{power64} %{arm}
+%global sa_arches       %{ix86} x86_64 sparcv9 sparc64 %{aarch64} %{power64} %{arm} riscv64
 # Set of architectures which support class data sharing
 # As of JDK-8005165 in OpenJDK 10, class sharing is not arch-specific
 # However, it does segfault on the Zero assembler port, so currently JIT only
 %global share_arches    %{jit_arches}
 # Set of architectures for which we build the Shenandoah garbage collector
-%global shenandoah_arches x86_64 %{aarch64}
+%global shenandoah_arches x86_64 %{aarch64} riscv64
 # Set of architectures for which we build the Z garbage collector
-%global zgc_arches x86_64
+%global zgc_arches x86_64 riscv64
 # Set of architectures for which alt-java has SSB mitigation
 %global ssbd_arches x86_64
 # Set of architectures for which java has short vector math library (libjsvml.so)
@@ -300,6 +300,10 @@
 %global archinstall aarch64
 %global stapinstall arm64
 %endif
+%ifarch riscv64
+%global archinstall riscv64
+%global stapinstall %{_target_cpu}
+%endif
 # 32 bit sparc, optimized for v9
 %ifarch sparcv9
 %global archinstall sparc
@@ -390,7 +394,7 @@
 %global top_level_dir_name   %{vcstag}
 %global top_level_dir_name_backup %{top_level_dir_name}-backup
 %global buildver        6
-%global rpmrelease      2
+%global rpmrelease      3
 #%%global tagsuffix     %%{nil}
 # Priority must be 8 digits in total; up to openjdk 1.8, we were using 18..... so when we moved to 11, we had to add another digit
 %if %is_system_jdk
@@ -538,9 +542,9 @@
 # Define the architectures on which we build
 # On RHEL, this should be the architectures with a devkit
 %if 0%{?centos} == 0
-ExclusiveArch: %{devkit_arches}
+ExclusiveArch: %{devkit_arches} riscv64
 %else
-ExclusiveArch: %{aarch64} %{ppc64le} s390x x86_64
+ExclusiveArch: %{aarch64} %{ppc64le} s390x x86_64 riscv64
 %endif
 
 Name:    java-%{javaver}-%{origin}-portable%{?pkgos:-%{pkgos}}
@@ -1062,7 +1066,7 @@ export NUM_PROC=${NUM_PROC:-1}
 %endif
 export XZ_OPT="-T0"
 
-%ifarch s390x sparc64 alpha %{power64} %{aarch64}
+%ifarch s390x sparc64 alpha %{power64} %{aarch64} riscv64
 export ARCH_DATA_MODEL=64
 %endif
 %ifarch alpha
@@ -1939,6 +1943,10 @@ done
 %endif
 
 %changelog
+* Tue May 20 2025 Kashyap Chamarthy <kchamart@redhat.com> - 1:21.0.7.0.6-3
+- Enable riscv64 arch; thanks: Songsong Zhang <U2FsdGVkX1@gmail.com>
+- Resolves: OPENJDK-3850
+
 * Thu May 08 2025 Andrew Hughes <gnu.andrew@redhat.com> - 1:21.0.7.0.6-2
 - Add local version of JDK-8351500 for early interim release before 21.0.8
 - Resolves: OPENJDK-3679