ci: build and use libabigail 1.6

libabigail 1.2 (at least) reports changes in 'const' property as an ABI
breakage [1].
This was fixed upstream in libabigail 1.4 [2], and a bug has been opened
in launchpad [3].

But for now, build and use the last version 1.6 so that the ABI checks
can be kept.

1: https://travis-ci.com/DPDK/dpdk/jobs/287872118#L2242
2: https://sourceware.org/git/gitweb.cgi?p=libabigail.git;a=commitdiff;h=215b7eb4fe8b
3: https://bugs.launchpad.net/ubuntu/+source/libabigail/+bug/1863607

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Aaron Conole <aconole@redhat.com>

.ci/linux-build.sh

@@ -14,6 +14,20 @@ on_error() {
 }
 trap on_error EXIT
 
+install_libabigail() {
+    version=$1
+    instdir=$2
+
+    wget -q "http://mirrors.kernel.org/sourceware/libabigail/${version}.tar.gz"
+    tar -xf ${version}.tar.gz
+    cd $version && autoreconf -vfi && cd -
+    mkdir $version/build
+    cd $version/build && ../configure --prefix=$instdir && cd -
+    make -C $version/build all install
+    rm -rf $version
+    rm ${version}.tar.gz
+}
+
 if [ "$AARCH64" = "1" ]; then
     # convert the arch specifier
     OPTS="$OPTS --cross-file config/arm/arm64_armv8_linux_gcc"
@@ -38,6 +52,21 @@ if [ "$AARCH64" != "1" ]; then
 fi
 
 if [ "$ABI_CHECKS" = "1" ]; then
+    LIBABIGAIL_VERSION=${LIBABIGAIL_VERSION:-libabigail-1.6}
+
+    if [ "$(cat libabigail/VERSION 2>/dev/null)" != "$LIBABIGAIL_VERSION" ]; then
+        rm -rf libabigail
+        # if we change libabigail, invalidate existing abi cache
+        rm -rf reference
+    fi
+
+    if [ ! -d libabigail ]; then
+        install_libabigail $LIBABIGAIL_VERSION $(pwd)/libabigail
+        echo $LIBABIGAIL_VERSION > libabigail/VERSION
+    fi
+
+    export PATH=$(pwd)/libabigail/bin:$PATH
+
     REF_GIT_REPO=${REF_GIT_REPO:-https://dpdk.org/git/dpdk}
     REF_GIT_TAG=${REF_GIT_TAG:-v19.11}
 

.travis.yml

@@ -2,6 +2,7 @@ language: c
 cache:
   ccache: true
   directories:
+    - libabigail
     - reference
 compiler:
   - gcc
@@ -24,7 +25,10 @@ aarch64_packages: &aarch64_packages
 
 extra_packages: &extra_packages
   - *required_packages
-  - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4, abigail-tools]
+  - [libbsd-dev, libpcap-dev, libcrypto++-dev, libjansson4]
+
+libabigail_build_packages: &libabigail_build_packages
+  - [autoconf, automake, libtool, pkg-config, libxml2-dev, libdw-dev]
 
 build_32b_packages: &build_32b_packages
   - *required_packages
@@ -160,6 +164,7 @@ matrix:
       apt:
         packages:
           - *extra_packages
+          - *libabigail_build_packages
   - env: DEF_LIB="shared" EXTRA_PACKAGES=1 ABI_CHECKS=1
     arch: arm64
     compiler: gcc
@@ -167,5 +172,6 @@ matrix:
       apt:
         packages:
           - *extra_packages
+          - *libabigail_build_packages
 
 script: ./.ci/${TRAVIS_OS_NAME}-build.sh