Temporarily use updated setup-toolchain.sh with LLVM support.

Refactor toolchain URL

Author: G36maid

.ci/setup-toolchain.sh

@@ -1,11 +1,61 @@
 #!/bin/bash
 set -e
 
-URL="https://github.com/riscv-collab/riscv-gnu-toolchain/releases/download/2025.06.13/riscv32-elf-ubuntu-22.04-gcc-nightly-2025.06.13-nightly.tar.xz"
+# Default to GNU if no toolchain specified
+TOOLCHAIN_TYPE=${1:-gnu}
 
-echo "[+] Downloading RISC-V GNU toolchain..."
-wget "$URL"
-tar -xf "$(basename "$URL")"
+TOOLCHAIN_REPO=https://github.com/riscv-collab/riscv-gnu-toolchain
+TOOLCHAIN_VERSION=2025.07.03
+TOOLCHAIN_OS=ubuntu-24.04
 
-echo "[+] Exporting toolchain path..."
-echo "$PWD/riscv/bin" >> "$GITHUB_PATH"
+setup_gnu_toolchain() {
+    echo "[+] Setting up GNU RISC-V toolchain..."
+
+    local URL="${TOOLCHAIN_REPO}/releases/download/${TOOLCHAIN_VERSION}/riscv32-elf-${TOOLCHAIN_OS}-gcc-nightly-${TOOLCHAIN_VERSION}-nightly.tar.xz"
+
+    echo "[+] Downloading RISC-V GNU toolchain..."
+    wget -q "$URL"
+    tar -xf "$(basename "$URL")"
+
+    echo "[+] Exporting GNU toolchain path..."
+    echo "$PWD/riscv/bin" >> "$GITHUB_PATH"
+
+    # Set cross-compile prefix for GNU
+    echo "CROSS_COMPILE=riscv32-unknown-elf-" >> "$GITHUB_ENV"
+    echo "TOOLCHAIN_TYPE=gnu" >> "$GITHUB_ENV"
+}
+
+setup_llvm_toolchain() {
+    echo "[+] Setting up LLVM RISC-V toolchain..."
+
+    # upstream URL for LLVM toolchain
+    local URL="${TOOLCHAIN_REPO}/releases/download/${TOOLCHAIN_VERSION}/riscv32-elf-${TOOLCHAIN_OS}-llvm-nightly-${TOOLCHAIN_VERSION}-nightly.tar.xz"
+
+    echo "[+] Downloading RISC-V LLVM toolchain..."
+    wget -q "$URL"
+    tar -xf "$(basename "$URL")"
+
+    echo "[+] Exporting LLVM toolchain path..."
+    echo "$PWD/riscv/bin" >> "$GITHUB_PATH"
+
+    # Set cross-compile prefix for LLVM
+    echo "CROSS_COMPILE=riscv32-unknown-elf-" >> "$GITHUB_ENV"
+    echo "TOOLCHAIN_TYPE=llvm" >> "$GITHUB_ENV"
+    echo "AR=llvm-ar" >> "$GITHUB_ENV"
+}
+
+case "$TOOLCHAIN_TYPE" in
+    "gnu")
+        setup_gnu_toolchain
+        ;;
+    "llvm")
+        setup_llvm_toolchain
+        ;;
+    *)
+        echo "Error: Unknown toolchain type '$TOOLCHAIN_TYPE'"
+        echo "Usage: $0 [gnu|llvm]"
+        exit 1
+        ;;
+esac
+
+echo "[+] Toolchain setup complete: $TOOLCHAIN_TYPE"

.github/workflows/ci.yml

@@ -2,9 +2,7 @@ name: Linmo CI
 
 on:
   push:
-    branches: [main, ci]
   pull_request:
-    branches: [main, ci]
 
 jobs:
   basic-tests:
@@ -20,8 +18,8 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y build-essential qemu-system-riscv32 wget
 
-      - name: Setup RISC-V Toolchain
-        run: .ci/setup-toolchain.sh
+      - name: Setup GNU RISC-V Toolchain
+        run: .ci/setup-toolchain.sh gnu
 
       - name: Verify toolchain installation
         run: |