1 files changed, 43 insertions, 0 deletions
diff --git a/scripts/install_riscv.sh b/scripts/install_riscv.sh
new file mode 100755
index 00000000..41642e70
--- /dev/null
+++ b/scripts/install_riscv.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+##############################################################################
+# Copyright (c) 2024 Microsoft Corporation
+# Copyright (c) 2026 Eclipse ThreadX contributors
+#
+# This program and the accompanying materials are made available under the
+# terms of the MIT License which is available at
+# https://opensource.org/licenses/MIT.
+#
+# SPDX-License-Identifier: MIT
+##############################################################################
+
+# Install RISC-V bare-metal cross-compiler toolchain and QEMU for CI.
+set -e
+
+RELEASE_TAG="2026.04.26"
+BASE_URL="https://github.com/riscv-collab/riscv-gnu-toolchain/releases/download/${RELEASE_TAG}"
+# Use ubuntu-24.04 binaries to match ubuntu-latest runners.
+RV32_TARBALL="riscv32-elf-ubuntu-24.04-gcc.tar.xz"
+RV64_TARBALL="riscv64-elf-ubuntu-24.04-gcc.tar.xz"
+
+echo "=== Installing QEMU and build tools ==="
+sudo apt-get update -qq
+sudo apt-get install -y -qq qemu-system-misc ninja-build cmake
+
+echo "=== Downloading RISC-V GCC toolchain (${RELEASE_TAG}) ==="
+
+# Both tarballs extract into riscv/ with non-overlapping prefixes
+# (riscv32-unknown-elf-* and riscv64-unknown-elf-*).
+for tarball in "$RV32_TARBALL" "$RV64_TARBALL"; do
+    echo "Downloading ${tarball} ..."
+    wget --no-verbose "${BASE_URL}/${tarball}" -O "/tmp/${tarball}"
+    sudo tar xJf "/tmp/${tarball}" -C /opt
+    rm "/tmp/${tarball}"
+done
+
+TOOLCHAIN_BIN=/opt/riscv/bin
+echo "$TOOLCHAIN_BIN" >> "$GITHUB_PATH"
+
+echo "=== Verifying installation ==="
+"$TOOLCHAIN_BIN/riscv32-unknown-elf-gcc" --version | head -1
+"$TOOLCHAIN_BIN/riscv64-unknown-elf-gcc" --version | head -1
+qemu-system-riscv64 --version | head -1