diff mbox series

[v2,2/2] ci: Introduce travis builds for github repositories

Message ID 20190130221602.13866-3-msantana@redhat.com (mailing list archive)
State Superseded, archived
Delegated to: Thomas Monjalon
Headers
Series Introduce travis support |

Checks

Context Check Description
ci/Intel-compilation success Compilation OK

Commit Message

Michael Santana Jan. 30, 2019, 10:16 p.m. UTC 
  GitHub is a service used by developers to store repositories.  GitHub
provides service integrations that allow 3rd party services to access
developer repositories and perform actions.  One of these services is
Travis-CI, a simple continuous integration platform.

This is a simple initial implementation of a travis build for the DPDK
project.  It doesn't require any changes from individual developers to
enable, but will allow those developers who opt-in to GitHub and the
travis service to get automatic builds for every push they make.

Additionally, the travis service will send an email to the test-report
list informing anyone interested in the automated build (including a
result).

Signed-off-by: Aaron Conole <aconole@redhat.com>
Signed-off-by: Michael Santana <msantana@redhat.com>
---
v2:
  - Added aarch64 build
  - Added multiple meson options for builds
  - Added multiple make/config options for builds

 .ci/linux-build.sh                  |  88 +++++++++++++++
 .ci/linux-setup.sh                  |  31 ++++++
 .travis.yml                         | 159 ++++++++++++++++++++++++++++
 MAINTAINERS                         |   7 ++
 doc/guides/contributing/patches.rst |   4 +
 meson_cross_aarch64_gcc.txt         |  12 +++
 6 files changed, 301 insertions(+)
 create mode 100755 .ci/linux-build.sh
 create mode 100755 .ci/linux-setup.sh
 create mode 100644 .travis.yml
 create mode 100644 meson_cross_aarch64_gcc.txt

Comments

Bruce Richardson Jan. 31, 2019, 9:25 a.m. UTC | #1 
On Wed, Jan 30, 2019 at 05:16:02PM -0500, Michael Santana wrote:
> GitHub is a service used by developers to store repositories.  GitHub
> provides service integrations that allow 3rd party services to access
> developer repositories and perform actions.  One of these services is
> Travis-CI, a simple continuous integration platform.
> 
> This is a simple initial implementation of a travis build for the DPDK
> project.  It doesn't require any changes from individual developers to
> enable, but will allow those developers who opt-in to GitHub and the
> travis service to get automatic builds for every push they make.
> 
> Additionally, the travis service will send an email to the test-report
> list informing anyone interested in the automated build (including a
> result).
> 
> Signed-off-by: Aaron Conole <aconole@redhat.com>
> Signed-off-by: Michael Santana <msantana@redhat.com>
> ---

A few comments inline below.

> v2:
>   - Added aarch64 build
>   - Added multiple meson options for builds
>   - Added multiple make/config options for builds
> 
>  .ci/linux-build.sh                  |  88 +++++++++++++++
>  .ci/linux-setup.sh                  |  31 ++++++
>  .travis.yml                         | 159 ++++++++++++++++++++++++++++
>  MAINTAINERS                         |   7 ++
>  doc/guides/contributing/patches.rst |   4 +
>  meson_cross_aarch64_gcc.txt         |  12 +++
>  6 files changed, 301 insertions(+)
>  create mode 100755 .ci/linux-build.sh
>  create mode 100755 .ci/linux-setup.sh
>  create mode 100644 .travis.yml
>  create mode 100644 meson_cross_aarch64_gcc.txt
>
 
<snip>

> +
> +if [ "${NINJABUILD}" == "1" ]; then
> +    OPTS=""
> +
> +    DEF_LIB="static"
> +    if [ "${SHARED}" == "1" ]; then
> +        DEF_LIB="shared"
> +    fi
> +
> +    if [ "${KERNEL}" == "1" ]; then
> +        OPTS="-Denable_kmods=false"
> +    fi

Is this condition correct? If kernel is set to "1" you want to disable
module builds? I think it should be the other way around.

> +
> +    if [ "${ARM64}" == "1" ]; then
> +        OPTS="${OPTS} --cross-file meson_cross_aarch64_${CC}.txt"
> +    fi
> +

<snip>

> diff --git a/.travis.yml b/.travis.yml
> new file mode 100644
> index 000000000..f296d6914
> --- /dev/null
> +++ b/.travis.yml
> @@ -0,0 +1,159 @@
> +language: c
> +compiler:
> +  - gcc
> +  - clang
> +
> +os:
> +  - linux
> +
> +addons:
> +  apt:
> +    sources:
> +      - deadsnakes #source for python 3.5

Do we really need python sources? Are the binaries not enough?

> +      - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
> +    packages:
> +      - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
> +
> +before_install: ./.ci/${TRAVIS_OS_NAME}-setup.sh
> +

<snip>

> diff --git a/meson_cross_aarch64_gcc.txt b/meson_cross_aarch64_gcc.txt
> new file mode 100644
> index 000000000..aee167d13
> --- /dev/null
> +++ b/meson_cross_aarch64_gcc.txt
> @@ -0,0 +1,12 @@
> +[binaries]
> +c = 'aarch64-linux-gnu-gcc'
> +cpp = 'aarch64-linux-gnu-g++'
> +ar = 'aarch64-linux-gnu-gcc-ar'
> +strip = 'aarch64-linux-gnu-strip'
> +pkgconfig = 'aarch64-linux-gnu-pkg-config'
> +
> +[host_machine]
> +system = 'linux'
> +cpu_family = 'aarch64'
> +cpu = 'aarch64'
> +endian = 'little'
> -- 

This looks very similar to the "config/arm/arm64_armv8_linuxapp_gcc" file.
I suggest that file be used instead of adding a new one.

/Bruce
Aaron Conole Jan. 31, 2019, 4:43 p.m. UTC | #2 
Bruce Richardson <bruce.richardson@intel.com> writes:

> On Wed, Jan 30, 2019 at 05:16:02PM -0500, Michael Santana wrote:
>> GitHub is a service used by developers to store repositories.  GitHub
>> provides service integrations that allow 3rd party services to access
>> developer repositories and perform actions.  One of these services is
>> Travis-CI, a simple continuous integration platform.
>> 
>> This is a simple initial implementation of a travis build for the DPDK
>> project.  It doesn't require any changes from individual developers to
>> enable, but will allow those developers who opt-in to GitHub and the
>> travis service to get automatic builds for every push they make.
>> 
>> Additionally, the travis service will send an email to the test-report
>> list informing anyone interested in the automated build (including a
>> result).
>> 
>> Signed-off-by: Aaron Conole <aconole@redhat.com>
>> Signed-off-by: Michael Santana <msantana@redhat.com>
>> ---
>
> A few comments inline below.
>
>> v2:
>>   - Added aarch64 build
>>   - Added multiple meson options for builds
>>   - Added multiple make/config options for builds
>> 
>>  .ci/linux-build.sh                  |  88 +++++++++++++++
>>  .ci/linux-setup.sh                  |  31 ++++++
>>  .travis.yml                         | 159 ++++++++++++++++++++++++++++
>>  MAINTAINERS                         |   7 ++
>>  doc/guides/contributing/patches.rst |   4 +
>>  meson_cross_aarch64_gcc.txt         |  12 +++
>>  6 files changed, 301 insertions(+)
>>  create mode 100755 .ci/linux-build.sh
>>  create mode 100755 .ci/linux-setup.sh
>>  create mode 100644 .travis.yml
>>  create mode 100644 meson_cross_aarch64_gcc.txt
>>
>  
> <snip>
>
>> +
>> +if [ "${NINJABUILD}" == "1" ]; then
>> +    OPTS=""
>> +
>> +    DEF_LIB="static"
>> +    if [ "${SHARED}" == "1" ]; then
>> +        DEF_LIB="shared"
>> +    fi
>> +
>> +    if [ "${KERNEL}" == "1" ]; then
>> +        OPTS="-Denable_kmods=false"
>> +    fi
>
> Is this condition correct? If kernel is set to "1" you want to disable
> module builds? I think it should be the other way around.

For meson, it's defaulted on (IIUC):

option('enable_kmods', type: 'boolean', value: true,
	description: 'build kernel modules')

So this will shut it off.  Maybe the test should have been for KERNEL !=
"1", though.  Okay, will adjust.

>> +
>> +    if [ "${ARM64}" == "1" ]; then
>> +        OPTS="${OPTS} --cross-file meson_cross_aarch64_${CC}.txt"
>> +    fi
>> +
>
> <snip>
>
>> diff --git a/.travis.yml b/.travis.yml
>> new file mode 100644
>> index 000000000..f296d6914
>> --- /dev/null
>> +++ b/.travis.yml
>> @@ -0,0 +1,159 @@
>> +language: c
>> +compiler:
>> +  - gcc
>> +  - clang
>> +
>> +os:
>> +  - linux
>> +
>> +addons:
>> +  apt:
>> +    sources:
>> +      - deadsnakes #source for python 3.5
>
> Do we really need python sources? Are the binaries not enough?

The sources section is for package repository configurations.  I agree,
I'm not sure why this is needed, but probably it has to do with some
travis container limitation (I don't know if the right python version is
available by default).

>> +      - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
>> +    packages:
>> +      - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
>> +
>> +before_install: ./.ci/${TRAVIS_OS_NAME}-setup.sh
>> +
>
> <snip>
>
>> diff --git a/meson_cross_aarch64_gcc.txt b/meson_cross_aarch64_gcc.txt
>> new file mode 100644
>> index 000000000..aee167d13
>> --- /dev/null
>> +++ b/meson_cross_aarch64_gcc.txt
>> @@ -0,0 +1,12 @@
>> +[binaries]
>> +c = 'aarch64-linux-gnu-gcc'
>> +cpp = 'aarch64-linux-gnu-g++'
>> +ar = 'aarch64-linux-gnu-gcc-ar'
>> +strip = 'aarch64-linux-gnu-strip'
>> +pkgconfig = 'aarch64-linux-gnu-pkg-config'
>> +
>> +[host_machine]
>> +system = 'linux'
>> +cpu_family = 'aarch64'
>> +cpu = 'aarch64'
>> +endian = 'little'
>> -- 
>
> This looks very similar to the "config/arm/arm64_armv8_linuxapp_gcc" file.
> I suggest that file be used instead of adding a new one.

Agreed, we can drop this.  I completely missed the configurations in
that directory.

Thanks again, Bruce!

> /Bruce
Bruce Richardson Jan. 31, 2019, 8:32 p.m. UTC | #3 
On Thu, Jan 31, 2019 at 11:43:19AM -0500, Aaron Conole wrote:
> Bruce Richardson <bruce.richardson@intel.com> writes:
> 
<snip>
> >
> > This looks very similar to the "config/arm/arm64_armv8_linuxapp_gcc" file.
> > I suggest that file be used instead of adding a new one.
> 
> Agreed, we can drop this.  I completely missed the configurations in
> that directory.
> 
Yes, they probably aren't stored in a great location for discoverability.
We should look to move them to a better place in the repo. Suggestions
welcome!

/Bruce
Aaron Conole Jan. 31, 2019, 8:43 p.m. UTC | #4 
Bruce Richardson <bruce.richardson@intel.com> writes:

> On Thu, Jan 31, 2019 at 11:43:19AM -0500, Aaron Conole wrote:
>> Bruce Richardson <bruce.richardson@intel.com> writes:
>> 
> <snip>
>> >
>> > This looks very similar to the "config/arm/arm64_armv8_linuxapp_gcc" file.
>> > I suggest that file be used instead of adding a new one.
>> 
>> Agreed, we can drop this.  I completely missed the configurations in
>> that directory.
>> 
> Yes, they probably aren't stored in a great location for discoverability.
> We should look to move them to a better place in the repo. Suggestions
> welcome!

It's probably okay to leave them there.  The build guides do make
reference to them (I just missed it, my fault).

> /Bruce
diff mbox series

Patch

diff --git a/.ci/linux-build.sh b/.ci/linux-build.sh
new file mode 100755
index 000000000..66d031a21
--- /dev/null
+++ b/.ci/linux-build.sh
@@ -0,0 +1,88 @@ 
+#!/bin/bash
+
+# check for whether we're clang or gcc
+# setup the right options depending on the environment variables
+# run the build
+
+# Just used for the 'classic' configuration system (ie: make)
+set_conf() {
+    echo "[BUILT WITH $2 SET TO $3]"
+    c="$1/.config"
+    shift
+
+    if grep -q "$1" "$c"; then
+        sed -i "s:^$1=.*$:$1=$2:g" $c
+    else
+        echo $1=$2 >> "$c"
+    fi
+}
+
+BUILD_ARCH="x86_64-native-linuxapp-"
+
+if [ "${ARM64}" == "1" ]; then
+    # convert the arch specifier
+    BUILD_ARCH="arm64-armv8a-linuxapp-"
+    ARM64_TOOL="linaro-arm-tool"
+    export PATH=$PATH:$(pwd)/${ARM64_TOOL}/bin
+fi
+
+
+if [ "${NINJABUILD}" == "1" ]; then
+    OPTS=""
+
+    DEF_LIB="static"
+    if [ "${SHARED}" == "1" ]; then
+        DEF_LIB="shared"
+    fi
+
+    if [ "${KERNEL}" == "1" ]; then
+        OPTS="-Denable_kmods=false"
+    fi
+
+    if [ "${ARM64}" == "1" ]; then
+        OPTS="${OPTS} --cross-file meson_cross_aarch64_${CC}.txt"
+    fi
+
+    OPTS="$OPTS --default-library=$DEF_LIB"
+    meson build --werror -Dexamples=all ${OPTS}
+    ninja -C build
+else
+    EXTRA_OPTS=""
+
+    make config T="${BUILD_ARCH}${CC}"
+
+    set_conf build CONFIG_RTE_KNI_KMOD n
+    set_conf build CONFIG_RTE_EAL_IGB_UIO n
+
+    if dpkg --list | grep -q zlib1g ; then
+        set_conf build CONFIG_RTE_LIBRTE_PMD_ZLIB y
+    fi
+
+    if dpkg --list | grep -q libpcap-dev ; then
+        set_conf build CONFIG_RTE_PORT_PCAP y
+    fi
+
+    if [ "${SHARED}" == "1" ]; then
+        set_conf build CONFIG_RTE_BUILD_SHARED_LIB y
+    fi
+
+    if [ "${KERNEL}" == "1" ]; then
+        echo Unsupported kernel builds at the moment
+    fi
+
+    if [ "${ARM64}" == "1" ]; then
+        EXTRA_OPTS="CROSS=aarch64-linux-gnu-"
+
+        # need to turn off these extras
+        set_conf build CONFIG_RTE_PORT_PCAP n
+        set_conf build CONFIG_RTE_LIBRTE_PMD_ZLIB n
+
+        # convert the CC/CXX variables
+        export CC=aarch64-linux-gnu-${CC}
+        export CXX=aarch64-linux-gnu-${CXX}
+        export AR=aarch64-linux-gnu-ar
+        export STRIP=aarch64-linux-gnu-strip
+    fi
+
+    make all ${EXTRA_OPTS}
+fi
diff --git a/.ci/linux-setup.sh b/.ci/linux-setup.sh
new file mode 100755
index 000000000..7d6478ef9
--- /dev/null
+++ b/.ci/linux-setup.sh
@@ -0,0 +1,31 @@ 
+#!/bin/bash
+
+python3.5 -m pip install --upgrade meson --user
+
+echo "ARM64 is [ ${ARM64} ]"
+
+if [ "${ARM64}" == "1" ]; then
+    # need to build & install libnuma
+    # This will only be minimal support for now.
+    ARM64_TOOL_URL='https://releases.linaro.org/components/toolchain/binaries/latest-7/aarch64-linux-gnu/gcc-linaro-7.4.1-2019.02-x86_64_aarch64-linux-gnu.tar.xz'
+    ARM64_TOOL="linaro-arm-tool"
+    NUMA_GIT_URL="https://github.com/numactl/numactl.git"
+
+    wget -O "${ARM64_TOOL}.tar.xz" "${ARM64_TOOL_URL}"
+    tar -xf "${ARM64_TOOL}.tar.xz"
+    mv gcc-linaro* "${ARM64_TOOL}"
+    export PATH=$PATH:$(pwd)/${ARM64_TOOL}/bin
+    git clone "${NUMA_GIT_URL}"
+    cd numactl
+    git checkout v2.0.11
+    ./autogen.sh
+    autoconf -i
+    mkdir numa_bin
+    ./configure --host=aarch64-linux-gnu CC=aarch64-linux-gnu-gcc \
+                --prefix=$(pwd)/numa_bin
+    make install # install numa
+    cd ..
+    cp numactl/numa_bin/include/numa*.h "${ARM64_TOOL}/aarch64-linux-gnu/libc/usr/include/"
+    cp numactl/numa_bin/lib/libnuma.* "${ARM64_TOOL}/aarch64-linux-gnu/lib64/"
+    cp numactl/numa_bin/lib/libnuma.* "${ARM64_TOOL}/lib/"
+fi
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 000000000..f296d6914
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,159 @@ 
+language: c
+compiler:
+  - gcc
+  - clang
+
+os:
+  - linux
+
+addons:
+  apt:
+    sources:
+      - deadsnakes #source for python 3.5
+      - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+    packages:
+      - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+
+before_install: ./.ci/${TRAVIS_OS_NAME}-setup.sh
+
+sudo: false
+
+env:
+  - SHARED=1
+  - KERNEL=1
+  - SHARED=1 KERNEL=1
+  - NINJABUILD=1
+  - NINJABUILD=1 SHARED=1
+  - NINJABUILD=1 KERNEL=1
+  - NINJABUILD=1 SHARED=1 KERNEL=1
+
+matrix:
+  include:
+  - env: SHARED=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: KERNEL=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: SHARED=1 KERNEL=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: SHARED=1
+    compiler: clang
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: KERNEL=1
+    compiler: clang
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: SHARED=1 KERNEL=1
+    compiler: clang
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: ARM64=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), libtool, python3.5, python3-pip]
+  - env: ARM64=1 NINJABUILD=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [linux-headers-$(uname -r), libtool, python3.5, python3-pip, ninja-build]
+  - env: NINJABUILD=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: NINJABUILD=1 SHARED=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: NINJABUILD=1 KERNEL=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+  - env: NINJABUILD=1 SHARED=1 KERNEL=1
+    compiler: gcc
+    addons:
+      apt:
+        sources:
+          - deadsnakes #source for python 3.5
+          - sourceline: 'ppa:mstipicevic/ninja-build-1-7-2'
+        packages:
+          - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+          - [libnuma-dev, linux-headers-$(uname -r), python3.5, python3-pip, ninja-build]
+
+
+script: ./.ci/${TRAVIS_OS_NAME}-build.sh
+
+notifications:
+  email:
+    recipients:
+      - test-report@dpdk.org
diff --git a/MAINTAINERS b/MAINTAINERS
index 66104405e..634afc41d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -119,6 +119,13 @@  F: config/rte_config.h
 F: buildtools/gen-pmdinfo-cfile.sh
 F: buildtools/symlink-drivers-solibs.sh
 
+Public CI
+M: Aaron Conole <aconole@redhat.com>
+M: Michael Santana <msantana@redhat.com>
+F: .travis.yml
+F: .ci/
+F: meson_cross_aarch64_gcc.txt
+
 ABI versioning
 M: Neil Horman <nhorman@tuxdriver.com>
 F: lib/librte_compat/
diff --git a/doc/guides/contributing/patches.rst b/doc/guides/contributing/patches.rst
index a64bb0368..49e930cbb 100644
--- a/doc/guides/contributing/patches.rst
+++ b/doc/guides/contributing/patches.rst
@@ -32,6 +32,10 @@  The mailing list for DPDK development is `dev@dpdk.org <http://mails.dpdk.org/ar
 Contributors will need to `register for the mailing list <http://mails.dpdk.org/listinfo/dev>`_ in order to submit patches.
 It is also worth registering for the DPDK `Patchwork <http://patches.dpdk.org/project/dpdk/list/>`_
 
+If you are using the GitHub service, you can link your repository to
+the ``travis-ci.org`` build service.  When you push patches to your GitHub
+repository, the travis service will automatically build your changes.
+
 The development process requires some familiarity with the ``git`` version control system.
 Refer to the `Pro Git Book <http://www.git-scm.com/book/>`_ for further information.
 
diff --git a/meson_cross_aarch64_gcc.txt b/meson_cross_aarch64_gcc.txt
new file mode 100644
index 000000000..aee167d13
--- /dev/null
+++ b/meson_cross_aarch64_gcc.txt
@@ -0,0 +1,12 @@ 
+[binaries]
+c = 'aarch64-linux-gnu-gcc'
+cpp = 'aarch64-linux-gnu-g++'
+ar = 'aarch64-linux-gnu-gcc-ar'
+strip = 'aarch64-linux-gnu-strip'
+pkgconfig = 'aarch64-linux-gnu-pkg-config'
+
+[host_machine]
+system = 'linux'
+cpu_family = 'aarch64'
+cpu = 'aarch64'
+endian = 'little'