From 6735434917ab4af24063078b72d9ebd3b214b5de Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Thu, 16 Apr 2020 10:54:14 -0400 Subject: [PATCH] devtools: remove old ABI validation script Since we've moved away from our initial validate-abi.sh script, in favor of check-abi.sh, which uses libabigail, remove the old script from the tree, and update the docs accordingly. Signed-off-by: Neil Horman Signed-off-by: Thomas Monjalon --- MAINTAINERS | 1 - devtools/validate-abi.sh | 251 --------------------- doc/guides/contributing/abi_versioning.rst | 43 +--- doc/guides/contributing/patches.rst | 2 + 4 files changed, 11 insertions(+), 286 deletions(-) delete mode 100755 devtools/validate-abi.sh diff --git a/MAINTAINERS b/MAINTAINERS index 1616951d7f..d2b286701d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -150,7 +150,6 @@ F: devtools/gen-abi.sh F: devtools/libabigail.abignore F: devtools/update-abi.sh F: devtools/update_version_map_abi.py -F: devtools/validate-abi.sh F: buildtools/check-symbols.sh F: buildtools/map-list-symbol.sh F: drivers/*/*/*.map diff --git a/devtools/validate-abi.sh b/devtools/validate-abi.sh deleted file mode 100755 index f64e19d38f..0000000000 --- a/devtools/validate-abi.sh +++ /dev/null @@ -1,251 +0,0 @@ -#!/usr/bin/env bash -# SPDX-License-Identifier: BSD-3-Clause -# Copyright(c) 2015 Neil Horman. All rights reserved. -# Copyright(c) 2017 6WIND S.A. -# All rights reserved - -set -e - -abicheck=abi-compliance-checker -abidump=abi-dumper -default_dst=abi-check -default_target=x86_64-native-linuxapp-gcc - -# trap on error -err_report() { - echo "$0: error at line $1" -} -trap 'err_report $LINENO' ERR - -print_usage () { - cat <<- END_OF_HELP - $(basename $0) [options] - - This script compares the ABI of 2 git revisions of the current - workspace. The output is a html report and a compilation log. - - The objective is to make sure that applications built against - DSOs from the first revision can still run when executed using - the DSOs built from the second revision. - - and are git commit id or tags. - - Options: - -h show this help - -j enable parallel compilation with threads - -v show compilation logs on the console - -d change working directory (default is ${default_dst}) - -t the dpdk target to use (default is ${default_target}) - -f overwrite existing files in destination directory - - The script returns 0 on success, or the value of last failing - call of ${abicheck} (incompatible abi or the tool has run with errors). - The errors returned by ${abidump} are ignored. - - END_OF_HELP -} - -# log in the file, and on stdout if verbose -# $1: level string -# $2: string to be logged -log() { - echo "$1: $2" - if [ "${verbose}" != "true" ]; then - echo "$1: $2" >&3 - fi -} - -# launch a command and log it, taking care of surrounding spaces with quotes -cmd() { - local i s whitespace ret - s="" - whitespace="[[:space:]]" - for i in "$@"; do - if [[ $i =~ $whitespace ]]; then - i=\"$i\" - fi - if [ -z "$s" ]; then - s="$i" - else - s="$s $i" - fi - done - - ret=0 - log "CMD" "$s" - "$@" || ret=$? - if [ "$ret" != "0" ]; then - log "CMD" "previous command returned $ret" - fi - - return $ret -} - -# redirect or copy stderr/stdout to a file -# the syntax is unfamiliar, but it makes the rest of the -# code easier to read, avoiding the use of pipes -set_log_file() { - # save original stdout and stderr in fd 3 and 4 - exec 3>&1 - exec 4>&2 - # create a new fd 5 that send to a file - exec 5> >(cat > $1) - # send stdout and stderr to fd 5 - if [ "${verbose}" = "true" ]; then - exec 1> >(tee /dev/fd/5 >&3) - exec 2> >(tee /dev/fd/5 >&4) - else - exec 1>&5 - exec 2>&5 - fi -} - -# Make sure we configure SHARED libraries -# Also turn off IGB and KNI as those require kernel headers to build -fixup_config() { - local conf=config/defconfig_$target - cmd sed -i -e"$ a\CONFIG_RTE_BUILD_SHARED_LIB=y" $conf - cmd sed -i -e"$ a\CONFIG_RTE_NEXT_ABI=n" $conf - cmd sed -i -e"$ a\CONFIG_RTE_EAL_IGB_UIO=n" $conf - cmd sed -i -e"$ a\CONFIG_RTE_LIBRTE_KNI=n" $conf - cmd sed -i -e"$ a\CONFIG_RTE_KNI_KMOD=n" $conf -} - -# build dpdk for the given tag and dump abi -# $1: hash of the revision -gen_abi() { - local i - - cmd git clone ${dpdkroot} ${dst}/${1} - cmd cd ${dst}/${1} - - log "INFO" "Checking out version ${1} of the dpdk" - # Move to the old version of the tree - cmd git checkout ${1} - - fixup_config - - # Now configure the build - log "INFO" "Configuring DPDK ${1}" - cmd make config T=$target O=$target - - # Checking abi compliance relies on using the dwarf information in - # the shared objects. Build with -g to include them. - log "INFO" "Building DPDK ${1}. This might take a moment" - cmd make -j$parallel O=$target V=1 EXTRA_CFLAGS="-g -Og -Wno-error" \ - EXTRA_LDFLAGS="-g" || log "INFO" "The build failed" - - # Move to the lib directory - cmd cd ${PWD}/$target/lib - log "INFO" "Collecting ABI information for ${1}" - for i in *.so; do - [ -e "$i" ] || break - cmd $abidump ${i} -o $dst/${1}/${i}.dump -lver ${1} || true - # hack to ignore empty SymbolsInfo section (no public ABI) - if grep -q "'SymbolInfo' => {}," $dst/${1}/${i}.dump \ - 2> /dev/null; then - log "INFO" "${i} has no public ABI, remove dump file" - cmd rm -f $dst/${1}/${i}.dump - fi - done -} - -verbose=false -parallel=1 -dst=${default_dst} -target=${default_target} -force=0 -while getopts j:vd:t:fh ARG ; do - case $ARG in - j ) parallel=$OPTARG ;; - v ) verbose=true ;; - d ) dst=$OPTARG ;; - t ) target=$OPTARG ;; - f ) force=1 ;; - h ) print_usage ; exit 0 ;; - ? ) print_usage ; exit 1 ;; - esac -done -shift $(($OPTIND - 1)) - -if [ $# != 2 ]; then - print_usage - exit 1 -fi - -tag1=$1 -tag2=$2 - -# convert path to absolute -case "${dst}" in - /*) ;; - *) dst=${PWD}/${dst} ;; -esac -dpdkroot=$(readlink -f $(dirname $0)/..) - -if [ -e "${dst}" -a "$force" = 0 ]; then - echo "The ${dst} directory is not empty. Remove it, use another" - echo "one (-d ), or force overriding (-f)" - exit 1 -fi - -rm -rf ${dst} -mkdir -p ${dst} -set_log_file ${dst}/abi-check.log -log "INFO" "Logs available in ${dst}/abi-check.log" - -command -v ${abicheck} || log "INFO" "Can't find ${abicheck} utility" -command -v ${abidump} || log "INFO" "Can't find ${abidump} utility" - -hash1=$(git show -s --format=%h "$tag1" -- 2> /dev/null | tail -1) -hash2=$(git show -s --format=%h "$tag2" -- 2> /dev/null | tail -1) - -# Make hashes available in output for non-local reference -tag1="$tag1 ($hash1)" -tag2="$tag2 ($hash2)" - -if [ "$hash1" = "$hash2" ]; then - log "ERROR" "$tag1 and $tag2 are the same revisions" - exit 1 -fi - -cmd mkdir -p ${dst} - -# dump abi for each revision -gen_abi ${hash1} -gen_abi ${hash2} - -# compare the abi dumps -cmd cd ${dst} -ret=0 -list="" -for i in ${hash2}/*.dump; do - name=`basename $i` - libname=${name%.dump} - - if [ ! -f ${hash1}/$name ]; then - log "INFO" "$NAME does not exist in $tag1. skipping..." - continue - fi - - local_ret=0 - cmd $abicheck -l $libname \ - -old ${hash1}/$name -new ${hash2}/$name || local_ret=$? - if [ $local_ret != 0 ]; then - log "NOTICE" "$abicheck returned $local_ret" - ret=$local_ret - list="$list $libname" - fi -done - -if [ $ret != 0 ]; then - log "NOTICE" "ABI may be incompatible, check reports/logs for details." - log "NOTICE" "Incompatible list: $list" -else - log "NOTICE" "No error detected, ABI is compatible." -fi - -log "INFO" "Logs are in ${dst}/abi-check.log" -log "INFO" "HTML reports are in ${dst}/compat_reports directory" - -exit $ret diff --git a/doc/guides/contributing/abi_versioning.rst b/doc/guides/contributing/abi_versioning.rst index f4a9273afc..e96fde340f 100644 --- a/doc/guides/contributing/abi_versioning.rst +++ b/doc/guides/contributing/abi_versioning.rst @@ -682,41 +682,16 @@ Running the ABI Validator ------------------------- The ``devtools`` directory in the DPDK source tree contains a utility program, -``validate-abi.sh``, for validating the DPDK ABI based on the Linux `ABI -Compliance Checker -`_. +``check-abi.sh``, for validating the DPDK ABI based on the libabigail +`abidiff utility `_. -This has a dependency on the ``abi-compliance-checker`` and ``and abi-dumper`` -utilities which can be installed via a package manager. For example:: +The syntax of the ``check-abi.sh`` utility is:: - sudo yum install abi-compliance-checker - sudo yum install abi-dumper + devtools/check-abi.sh -The syntax of the ``validate-abi.sh`` utility is:: +Where specifies the directory housing the reference build of DPDK, +and specifies the DPDK build directory to check the ABI of. - ./devtools/validate-abi.sh - -Where ``REV1`` and ``REV2`` are valid gitrevisions(7) -https://www.kernel.org/pub/software/scm/git/docs/gitrevisions.html -on the local repo. - -For example:: - - # Check between the previous and latest commit: - ./devtools/validate-abi.sh HEAD~1 HEAD - - # Check on a specific compilation target: - ./devtools/validate-abi.sh -t x86_64-native-linux-gcc HEAD~1 HEAD - - # Check between two tags: - ./devtools/validate-abi.sh v2.0.0 v2.1.0 - - # Check between git master and local topic-branch "vhost-hacking": - ./devtools/validate-abi.sh master vhost-hacking - -After the validation script completes (it can take a while since it need to -compile both tags) it will create compatibility reports in the -``./abi-check/compat_report`` directory. Listed incompatibilities can be found -as follows:: - - grep -lr Incompatible abi-check/compat_reports/ +The ABI compatibility is automatically verified when using a build script +from ``devtools``, if the variable ``DPDK_ABI_REF_VERSION`` is set with a tag, +as described in :ref:`ABI check recommendations`. diff --git a/doc/guides/contributing/patches.rst b/doc/guides/contributing/patches.rst index 59442824a1..e6a934846e 100644 --- a/doc/guides/contributing/patches.rst +++ b/doc/guides/contributing/patches.rst @@ -513,6 +513,8 @@ in a single subfolder called "__builds" created in the current directory. Setting ``DPDK_BUILD_TEST_DIR`` to an absolute directory path e.g. ``/tmp`` is also supported. +.. _integrated_abi_check: + Checking ABI compatibility -------------------------- -- 2.20.1