From 58698377353bd0ea06dd68cefcbd3aee05bb1622 Mon Sep 17 00:00:00 2001
From: Kenjiro Nakayama <nakayamakenjiro@gmail.com>
Date: Thu, 13 Aug 2026 16:30:07 +0900
Subject: ci: test RISC-V with QEMU

Cross-compile for riscv64 on Ubuntu 24.04 and run the test suite through
QEMU, covering the RISC-V-specific crypto code.
---
 .github/workflows/linux.yml | 6 ++++++
 scripts/test                | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index ad13ed8..4fbe987 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -35,6 +35,9 @@ jobs:
           - os: "ubuntu-24.04" # loong64
             arch: "loong64"
             compiler: "gcc"
+          - os: "ubuntu-24.04"
+            arch: "riscv64"
+            compiler: "gcc"
           - os: "ubuntu-24.04-arm"
             arch: "native"
             compiler: "gcc"
@@ -68,6 +71,9 @@ jobs:
             mips64)
               packages+=(qemu-user-static binfmt-support g++-mips64el-linux-gnuabi64)
               ;;
+            riscv64)
+              packages+=(qemu-user-static binfmt-support g++-riscv64-linux-gnu)
+              ;;
           esac
           sudo apt-get update
           sudo apt-get install -y "${packages[@]}"
diff --git a/scripts/test b/scripts/test
index 0e84b22..7e64bf1 100755
--- a/scripts/test
+++ b/scripts/test
@@ -161,6 +161,15 @@ elif [ "$ARCH" = "loong64" ]; then
 
 	file apps/openssl/openssl
 
+elif [ "$ARCH" = "riscv64" ]; then
+	sudo ln -sf /usr/riscv64-linux-gnu/lib/ld-linux-riscv64-lp64d.so.1 /lib/
+	setup_cross_compiler riscv64-linux-gnu
+
+	./configure --host=riscv64-linux-gnu
+	LD_LIBRARY_PATH=/usr/riscv64-linux-gnu/lib make -j 4 check
+
+	file apps/openssl/openssl
+
 elif [ "$ARCH" = "mips32" ] || [ "$ARCH" = "mips64" ]; then
 	if [ "$ARCH" = "mips32" ]; then
 		sudo ln -sf /usr/mips-linux-gnu/lib/ld.so.1 /lib/
-- 
cgit v1.2.3-55-g6feb


From 9d9f450f475fa1fa0bf5efcddeccb24b2b68e929 Mon Sep 17 00:00:00 2001
From: Kenjiro Nakayama <nakayamakenjiro@gmail.com>
Date: Thu, 13 Aug 2026 16:40:47 +0900
Subject: Enable RISC-V BN assembly with autotools

Recognize ELF riscv64 as an assembly-capable target so the
architecture-specific BN helpers are used unless assembly is
explicitly disabled.
---
 configure.ac       | 2 ++
 crypto/Makefile.am | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index 23f0c38..c10a33f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -136,6 +136,8 @@ AM_CONDITIONAL([HOST_ASM_ELF_MIPS],
     [test "x$HOST_ABI" = "xelf" -a "$host_cpu" = "mips" -a "x$enable_asm" != "xno"])
 AM_CONDITIONAL([HOST_ASM_ELF_MIPS64],
     [test "x$HOST_ABI" = "xelf" -a "$host_cpu" = "mips64" -a "x$enable_asm" != "xno"])
+AM_CONDITIONAL([HOST_ASM_ELF_RISCV64],
+    [test "x$HOST_ABI" = "xelf" -a "$host_cpu" = "riscv64" -a "x$enable_asm" != "xno"])
 AM_CONDITIONAL([HOST_ASM_ELF_X86_64],
     [test "x$HOST_ABI" = "xelf" -a "$host_cpu" = "x86_64" -a "x$enable_asm" != "xno"])
 AM_CONDITIONAL([HOST_ASM_MACOSX_X86_64],
diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index 7969aee..a4a717d 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -212,6 +212,7 @@ include Makefile.am.mingw64-x86_64
 if !HOST_ASM_ELF_AARCH64
 if !HOST_ASM_ELF_MIPS
 if !HOST_ASM_ELF_MIPS64
+if !HOST_ASM_ELF_RISCV64
 if !HOST_ASM_ELF_X86_64
 if !HOST_ASM_MACOSX_X86_64
 if !HOST_ASM_MASM_X86_64
@@ -224,6 +225,7 @@ endif
 endif
 endif
 endif
+endif
 
 if HOST_AARCH64
 if HOST_DARWIN
-- 
cgit v1.2.3-55-g6feb