Add travis cia for openrisc kernel

This should not go upstream.  Just keep in openrisc repos.

Changes since v1
 - add libelf for x86 build failure

Changes since v2
 - fix .gitignore conflict
 - update gcc toolchain to 9.0.0

Changes since v3
 - fix conflict in .gitconfig
 - update image to bionic
 - fixup mpfr with a ln hack, needed by or1k toolchain

Changes since v4
 - convert from travis to github CI

Changes since v5
 - Update to use latest ubuntu
 - Use embecosm toolchain

.github/workflows/ci.yml

@@ -0,0 +1,47 @@
+name: ci
+
+on: [push, pull_request, workflow_dispatch]
+
+jobs:
+ kernel-builds:
+ runs-on: ubuntu-latest
+ env:
+ LD_LIBRARY_PATH: "/tmp/tools/lib"
+ CONFIG: ${{ matrix.env.CONFIG }}
+ ARCH: ${{ matrix.env.ARCH }}
+ CROSS_COMPILE: ${{ matrix.env.CROSS_COMPILE }}
+ steps:
+ # Checkout Repository
+ - name: Checkout
+ uses: actions/checkout@v2
+
+ # Install OS Tools
+ - name: Install Tools
+ run: |
+ sudo apt-get install build-essential bc xz-utils git iverilog libelf-dev
+ # Install Toolchain
+ - name: Install Toolchain
+ run: |
+ mkdir -p /tmp/tools
+ cd /tmp/tools
+ curl --remote-name --location \
+ https://buildbot.embecosm.com/job/or1k-gcc-ubuntu2204-release/5/artifact/or1k-embecosm-ubuntu2204-gcc13.1.0.tar.gz
+ tar -xf or1k-embecosm-ubuntu2204-gcc13.1.0.tar.gz
+ export PATH=$PATH:/tmp/tools/or1k-embecosm-ubuntu2204-gcc13.1.0/bin
+ or1k-elf-gcc --version
+ - name: Run Build
+ shell: bash {0}
+ run: |
+ export PATH=$PATH:/tmp/tools/or1k-embecosm-ubuntu2204-gcc13.1.0/bin
+ make ARCH=$ARCH $CONFIG && make ARCH=$ARCH CROSS_COMPILE=$CROSS_COMPILE -j$(($(nproc) + 1))
+
+ strategy:
+ matrix:
+ env:
+ - { ARCH: "openrisc", CONFIG: "defconfig", CROSS_COMPILE: "or1k-elf-" }
+ - { ARCH: "openrisc", CONFIG: "allnoconfig", CROSS_COMPILE: "or1k-elf-" }
+ - { ARCH: "openrisc", CONFIG: "alldefconfig", CROSS_COMPILE: "or1k-elf-" }
+ - { ARCH: "x86", CONFIG: "defconfig", CROSS_COMPILE: "" }
+ # fails with ./usr/include/linux/if.h:28:10: fatal error: sys/socket.h:
+ # No such file or directory
+ #- { ARCH: "openrisc", CONFIG: "allyesconfig", CROSS_COMPILE: "or1k-elf-" }

.gitignore

@@ -102,10 +102,12 @@ modules.order
 !.cocciconfig
 !.get_maintainer.ignore
 !.gitattributes
+!.github/
 !.gitignore
 !.kunitconfig
 !.mailmap
 !.rustfmt.toml
+!.travis.yml
 
 #
 # Generated include files

.travis.yml

@@ -0,0 +1,27 @@
+dist: bionic # bionic needed for gcc 7.4 retpoline
+sudo: false
+language: c
+branches:
+ - travis
+addons:
+ apt:
+ sources:
+ - ubuntu-toolchain-r-test # get gcc-6
+ packages:
+ - build-essential
+ - bc # basic for linux build
+ - libmpc3 # needed for or1k-linux- toolchain
+ - libelf-dev
+env:
+ matrix:
+ - ARCH=openrisc CONFIG=defconfig CROSS_COMPILE=or1k-linux-
+ - ARCH=openrisc CONFIG=allnoconfig CROSS_COMPILE=or1k-linux-
+ - ARCH=openrisc CONFIG=allyesconfig CROSS_COMPILE=or1k-linux-
+ - ARCH=openrisc CONFIG=alldefconfig CROSS_COMPILE=or1k-linux-
+ - ARCH=x86 CONFIG=defconfig
+before_install:
+ - wget https://github.com/stffrdhrn/gcc/releases/download/or1k-9.0.0-20180613/or1k-linux-9.0.0-20180612.tar.xz -O /tmp/gcc.tar.xz
+ - tar -xf /tmp/gcc.tar.xz
+ - sudo ln -s /usr/lib/x86_64-linux-gnu/libmpfr.so.6 /usr/lib/x86_64-linux-gnu/libmpfr.so.4 # because or1k toolchain needs old mpfr
+ - export PATH=$PATH:$PWD/or1k-linux/bin
+script: make $CONFIG && make -j2

readme.md

@@ -0,0 +1,16 @@
+# OpenRISC Linux CI build branch
+
+This branch just has the github ci commits on top of the main
+branch.
+
+Its a bit of a hack but we dont want travis files to get into
+upstream so I thought this way is good. If there is a better
+way let me know.
+
+To update latest code:
+
+```
+git checkout travis
+git rebase -i for-next
+git push origin travis
+```