[PATCH kexec-tools] workflow: Add loongarch64 build

[Simon Horman]

Add loongarch64 to build matrix.

A gcc-14 package is installed as there is no generic gcc package
for loongarch in Ubuntu 24.04. Hopefully this will be resolved in
Ubuntu 26.04.

Signed-off-by: Simon Horman <horms at kernel.org>
---
 .github/workflows/build.yml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index d1b3e74391ffa3e20764cea69fd5d02e9e4fce6c..1dbb31bca111c0f2746567b0ce81f70e30043776 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,6 +13,7 @@ jobs:
         - arm64
         - hppa
         - i686
+        - loongarch64
         - m68k
         - mips
         - mipsel
@@ -46,6 +47,8 @@ jobs:
           x86_64)      ;;
           x86_64-x32)  GNU_ARCH="x86_64-linux-gnux32"
                        CROSS_COMPILER_PKG="gcc-x86-64-linux-gnux32" ;;
+          loongarch64) CROSS_COMPILER_PKG="gcc-14-loongarch64-linux-gnu"
+                       ;& # Fallthrough
           *)           GNU_ARCH="$ARCH-linux-gnu" ;;
         esac
 
@@ -66,6 +69,11 @@ jobs:
         sudo apt-get update
         sudo apt-get -q=2 install ${{ env.EXTRA_PKGS }}
 
+    - name: Add GCC Link
+      if: matrix.arch == 'loongarch64'
+      run: |
+        ( cd /usr/bin && sudo ln -s loongarch64-linux-gnu-gcc-14 loongarch64-linux-gnu-gcc; )
+
     - name: Build
       run: |
         ./bootstrap