From 924f5c4604c93351c2bb957bf831dff8c16fd590 Mon Sep 17 00:00:00 2001 From: Adrien Mazarguil Date: Thu, 8 Sep 2016 14:25:11 +0200 Subject: [PATCH] scripts: check compilation of exported header files This script checks that header files in a given directory do not miss dependencies when included on their own, do not conflict and accept being compiled with the strictest possible flags. It is too slow at the moment to be automatically executed by test-build.sh and should be run voluntarily (like check-git-log.sh and friends) after making changes to exported header files. Signed-off-by: Adrien Mazarguil --- MAINTAINERS | 1 + scripts/check-includes.sh | 286 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 287 insertions(+) create mode 100755 scripts/check-includes.sh diff --git a/MAINTAINERS b/MAINTAINERS index bc9aa0223b..0e7894139d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -26,6 +26,7 @@ T: git://dpdk.org/dpdk F: MAINTAINERS F: scripts/check-maintainers.sh F: scripts/check-git-log.sh +F: scripts/check-includes.sh F: scripts/checkpatches.sh F: scripts/load-devel-config F: scripts/test-build.sh diff --git a/scripts/check-includes.sh b/scripts/check-includes.sh new file mode 100755 index 0000000000..d65adc6db3 --- /dev/null +++ b/scripts/check-includes.sh @@ -0,0 +1,286 @@ +#!/bin/sh -e +# +# BSD LICENSE +# +# Copyright 2016 6WIND S.A. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# * Neither the name of 6WIND S.A. nor the names of its +# contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +# This script checks that header files in a given directory do not miss +# dependencies when included on their own, do not conflict and accept being +# compiled with the strictest possible flags. +# +# Files are looked up in the directory provided as the first argument, +# otherwise build/include by default. +# +# Recognized environment variables: +# +# VERBOSE=1 is the same as -v. +# +# QUIET=1 is the same as -q. +# +# SUMMARY=1 is the same as -s. +# +# CC, CPPFLAGS, CFLAGS, EXTRA_CPPFLAGS, EXTRA_CFLAGS, CXX, CXXFLAGS and +# EXTRA_CXXFLAGS are taken into account. +# +# PEDANTIC_CFLAGS, PEDANTIC_CXXFLAGS and PEDANTIC_CPPFLAGS provide strict +# C/C++ compilation flags. +# +# IGNORE contains a list of shell patterns matching files (relative to the +# include directory) to avoid. It is set by default to known DPDK headers +# which must not be included on their own. +# +# IGNORE_CXX provides additional files for C++. + +while getopts hqvs arg; do + case $arg in + h) + cat < /dev/null + +[ "$VERBOSE" = 1 ] && +output () +{ + local CCV + local CXXV + + shift + CCV=$CC + CXXV=$CXX + CC="echo $CC" CXX="echo $CXX" "$@" + CC=$CCV + CXX=$CXXV + + "$@" +} || +output () +{ + + printf ' %s\n' "$1" + shift + "$@" +} + +trap 'rm -f "$temp_cc" "$temp_cxx"' EXIT + +compile_cc () +{ + ${CC} -I"$include_dir" \ + ${PEDANTIC_CPPFLAGS} ${CPPFLAGS} ${EXTRA_CPPFLAGS} \ + ${PEDANTIC_CFLAGS} ${CFLAGS} ${EXTRA_CFLAGS} \ + -c -o /dev/null "${temp_cc}" +} + +compile_cxx () +{ + ${CXX} -I"$include_dir" \ + ${PEDANTIC_CPPFLAGS} ${CPPFLAGS} ${EXTRA_CPPFLAGS} \ + ${PEDANTIC_CXXFLAGS} ${CXXFLAGS} ${EXTRA_CXXFLAGS} \ + -c -o /dev/null "${temp_cxx}" +} + +ignore () +{ + file="$1" + shift + while [ $# -ne 0 ]; do + case "$file" in + $1) + return 0 + ;; + esac + shift + done + return 1 +} + +# Check C/C++ compilation for each header file. + +while read -r path +do + file=${path#$include_dir} + file=${file##/} + if ignore "$file" $IGNORE; then + output "SKIP $file" : + continue + fi + if printf "\ +#include <%s> + +int main(void) +{ + return 0; +} +" "$file" > "$temp_cc" && + output "CC $file" compile_cc + then + pass_cc="$pass_cc $file" + else + failures_cc=$(($failures_cc + 1)) + fi + if ignore "$file" $IGNORE_CXX; then + output "SKIP CXX $file" : + continue + fi + if printf "\ +#include <%s> + +int main() +{ +} +" "$file" > "$temp_cxx" && + output "CXX $file" compile_cxx + then + pass_cxx="$pass_cxx $file" + else + failures_cxx=$(($failures_cxx + 1)) + fi +done < "$temp_cc" && +for file in $pass_cc; do + printf "\ +#include <%s> +" "$file" >> $temp_cc +done +if printf "\ +int main(void) +{ + return 0; +} +" >> "$temp_cc" && + output "CC (all includes that did not fail)" compile_cc +then + : +else + failures_cc=$(($failures_cc + 1)) +fi + +# Check C++ compilation with all includes. + +: > "$temp_cxx" && +for file in $pass_cxx; do + printf "\ +#include <%s> +" "$file" >> $temp_cxx +done +if printf "\ +int main() +{ +} +" >> "$temp_cxx" && + output "CXX (all includes that did not fail)" compile_cxx +then + : +else + failures_cxx=$(($failures_cxx + 1)) +fi + +# Report results. + +if [ "$SUMMARY" = 1 ]; then + printf "\ +Summary: + %u failure(s) for C using '%s'. + %u failure(s) for C++ using '%s'. +" $failures_cc "$CC" $failures_cxx "$CXX" 1>&2 +fi + +# Exit with nonzero status if there are failures. + +[ $failures_cc -eq 0 ] && +[ $failures_cxx -eq 0 ] -- 2.20.1