From 48fc28c5841a6c155260c0eac7a077c3393e8a01 Mon Sep 17 00:00:00 2001
From: Colin Davidson <colin.davidson@codeplay.com>
Date: Thu, 21 Nov 2024 09:03:16 +0000
Subject: [PATCH] Add risc-v cross llvm build

---
 .github/workflows/create_llvm.yml | 36 ++++++++++++++++++++++++++-----
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/create_llvm.yml b/.github/workflows/create_llvm.yml
index c33f52139..152216a44 100644
--- a/.github/workflows/create_llvm.yml
+++ b/.github/workflows/create_llvm.yml
@@ -18,16 +18,20 @@ jobs:
     strategy:
       matrix:
         version: [18, 19]
-        os: [ubuntu-22.04, windows-2019]
+        os: [ubuntu-22.04, ubuntu-24.04, windows-2019]
         build_type: [Release, RelAssert]
-        arch : [x86, x86_64, aarch64]
+        arch : [x86, x86_64, aarch64, riscv64]
         exclude:
-          # Reduce the versions of llvm for aarch64 & x86 architectures and windows, as
+          # Reduce the versions of llvm for aarch64, riscv64 & x86 architectures and windows, as
           # well as any windows os variants to reduce cache usage.
           - arch: aarch64
             version: 18
           - arch: aarch64
             build_type: Release
+          - arch: riscv64
+            version: 18
+          - arch: riscv64
+            build_type: Release            
           - arch: x86
             version: 18
           - arch: x86
@@ -39,7 +43,21 @@ jobs:
           - os: windows-2019
             arch: aarch64
           - os: windows-2019
+            arch: riscv64            
+          - os: windows-2019
+            arch: x86
+          - os: windows-2019
+            arch: ubuntu-22.04
+          # Todo: for risc-v we need to build on ubuntu-24.04 as gcc 13 is required for the dynamic links flags to work
+          - os: ubuntu-22.04
+            arch: riscv64
+          # we build the other arches on 22.04
+          - os: ubuntu-24.04
             arch: x86
+          - os: ubuntu-24.04
+            arch: x86_64
+          - os: ubuntu-24.04
+            arch: aarch64
         include:
           # We want to set flags related to particular matrix dimensions. To do this
           # we need to create default values first, and then against particular matrix
@@ -53,15 +71,18 @@ jobs:
           - arch_flags: -DCMAKE_TOOLCHAIN_FILE="$GITHUB_WORKSPACE/ock/platform/arm-linux/aarch64-toolchain.cmake"
                         -DLLVM_HOST_TRIPLE=aarch64-unknown-linux-gnu
             arch: aarch64
+          - arch_flags: -DCMAKE_TOOLCHAIN_FILE="$GITHUB_WORKSPACE/ock/platform/riscv64-linux/riscv64-gcc-toolchain.cmake "
+                        -DLLVM_HOST_TRIPLE=riscv64-unknown-linux-gnu
+            arch: riscv64            
           - arch_flags: -DLLVM_BUILD_32_BITS=ON -DLIBXML2_LIBRARIES=IGNORE -DLLVM_ENABLE_TERMINFO=OFF
                         -DLLVM_HOST_TRIPLE=i686-unknown-linux-gnu
             arch: x86
           - build_type: Release
             build_type_flags: -DCMAKE_BUILD_TYPE=Release
-          # Todo: for risc-v we need to build on ubuntu-24.04 as gcc 13 is required for the dynamic links flags to work
-          # This will probably require some exclude: on the different os or building all on each os.
           - os: ubuntu-22.04
             os_flags: -DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_LINK_LLVM_DYLIB=ON
+          - os: ubuntu-24.04
+            os_flags: -DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_LINK_LLVM_DYLIB=ON
 
     runs-on: ${{ matrix.os }}
     steps:
@@ -103,6 +124,11 @@ jobs:
         run:
           sudo apt-get install --yes g++-11-aarch64-linux-gnu
 
+      - name: install risc64 build tools
+        if: ${{ steps.cache.outputs.cache-hit != 'true' && matrix.arch == 'riscv64' }}
+        run:
+          sudo apt-get install --yes g++-13-riscv64-linux-gnu
+
       - name: install x86 build tools
         if: ${{ steps.cache.outputs.cache-hit != 'true' && matrix.arch == 'x86' }}
         run: |