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build.sh
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build.sh
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#!/bin/sh -e
# This script runs one build with setup environment variables: CC, CMAKE and
# REMOTE.
: "${CC:=gcc}"
: "${CMAKE:=no}"
: "${REMOTE:=no}"
: "${LIBPCAP_TAINTED:=no}"
: "${MAKE_BIN:=make}"
. ./build_common.sh
# Install directory prefix
if [ -z "$PREFIX" ]; then
PREFIX=`mktempdir libpcap_build`
echo "PREFIX set to '$PREFIX'"
DELETE_PREFIX=yes
fi
print_cc_version
# The norm is to compile without any warnings, but libpcap builds on some OSes
# are not warning-free for one or another reason. If you manage to fix one of
# these cases, please remember to remove respective exemption below to help any
# later warnings in the same matrix subset trigger an error.
# shellcheck disable=SC2221,SC2222
case `cc_id`/`os_id` in
gcc-*/Linux-*)
# This warning is a bit odd. It is steadily present in Cirrus CI, but not
# in Buildbot. On my Linux system with the same exact distribution and GCC
# as Cirrus CI it reproduces only if GCC receives the "-g" flag:
# make CFLAGS=-g -- does not reproduce
# CFLAGS=-g make -- reproduces
# make -- reproduces
#
# pcap-linux.c:947:8: warning: ignoring return value of 'write', declared
# with attribute warn_unused_result [-Wunused-result]
#
# And even this way it does not make GCC exit with an error when it has
# reported the warning and has received the "-Werror" flag. So let's keep
# this block no-op for now.
;;
clang-*/NetBSD-*)
# pcap-bpf.c:1044:18: warning: implicit conversion loses integer precision:
# 'uint64_t' (aka 'unsigned long') to 'u_int' (aka 'unsigned int')
# [-Wshorten-64-to-32]
# pcap-bpf.c:1045:18: warning: implicit conversion loses integer precision:
# 'uint64_t' (aka 'unsigned long') to 'u_int' (aka 'unsigned int')
# [-Wshorten-64-to-32]
# pcap-bpf.c:1274:39: warning: implicit conversion loses integer precision:
# 'long' to 'suseconds_t' (aka 'int') [-Wshorten-64-to-32]
LIBPCAP_TAINTED=yes
;;
clang-15.*/*)
# grammar.c:1369:14: warning: variable 'pcap_nerrs' set but not used
# [-Wunused-but-set-variable]
LIBPCAP_TAINTED=yes
;;
clang-*/SunOS-5.11)
# (Solaris 11 and OpenIndiana)
# pcap-bpf.c:1044:18: warning: implicit conversion loses integer precision:
# 'uint64_t' (aka 'unsigned long') to 'u_int' (aka 'unsigned int')
# [-Wshorten-64-to-32]
# pcap-bpf.c:1045:18: warning: implicit conversion loses integer precision:
# 'uint64_t' (aka 'unsigned long') to 'u_int' (aka 'unsigned int')
# [-Wshorten-64-to-32]
# fad-getad.c:266:52: warning: implicit conversion loses integer precision:
# 'uint64_t'(aka 'unsigned long') to 'bpf_u_int32' (aka 'unsigned int')
# [-Wshorten-64-to-32]
# (Solaris 11)
# pcap-bpf.c:1843:22: warning: implicit conversion loses integer precision:
# 'long' to 'int' [-Wshorten-64-to-32]
# (OpenIndiana)
# rpcapd.c:393:18: warning: this function declaration is not a prototype
# [-Wstrict-prototypes]
[ "`uname -p`" = i386 ] && LIBPCAP_TAINTED=yes
;;
suncc-5.1[45]/SunOS-5.11)
# "scanner.l", line 257: warning: statement not reached
# (186 warnings for scanner.l)
#
# "./filtertest.c", line 259: warning: statement not reached
# "./filtertest.c", line 276: warning: statement not reached
# "./filtertest.c", line 281: warning: statement not reached
LIBPCAP_TAINTED=yes
;;
*/Haiku-*)
# (GCC 8.3.0 and later, Clang 9.0.1.)
# pcap-haiku.cpp:55:21: warning: unused variable 'handlep' [-Wunused-variable]
# pcap-haiku.cpp:50:37: warning: unused parameter 'maxPackets' [-Wunused-parameter]
# pcap-haiku.cpp:111:47: warning: unused parameter 'buffer' [-Wunused-parameter]
# pcap-haiku.cpp:111:59: warning: unused parameter 'size' [-Wunused-parameter]
# pcap-haiku.cpp:268:26: warning: unused parameter 'name' [-Wunused-parameter]
# pcap-haiku.cpp:274:26: warning: unused parameter 'name' [-Wunused-parameter]
# pcap-haiku.cpp:274:58: warning: unused parameter 'errbuf' [-Wunused-parameter]
#
# (The warnings below come from GCC and Clang in CMake builds after installing
# all system updates.)
# gencode.c:4143:9: warning: converting a packed 'struct in6_addr' pointer
# (alignment 1) to a 'uint32_t' {aka 'unsigned int'} pointer (alignment 4) may
# result in an unaligned pointer value [-Waddress-of-packed-member]
# gencode.c:4144:9: warning: converting a packed 'struct in6_addr' pointer
# (alignment 1) to a 'uint32_t' {aka 'unsigned int'} pointer (alignment 4) may
# result in an unaligned pointer value [-Waddress-of-packed-member]
# gencode.c:7189:9: warning: converting a packed 'struct in6_addr' pointer
# (alignment 1) to a 'uint32_t' {aka 'unsigned int'} pointer (alignment 4) may
# result in an unaligned pointer value [-Waddress-of-packed-member]
# gencode.c:7190:9: warning: converting a packed 'struct in6_addr' pointer
# (alignment 1) to a 'uint32_t' {aka 'unsigned int'} pointer (alignment 4) may
# result in an unaligned pointer value [-Waddress-of-packed-member]
LIBPCAP_TAINTED=yes
;;
esac
[ "$LIBPCAP_TAINTED" != yes ] && CFLAGS=`cc_werr_cflags`
if [ "$CMAKE" = no ]; then
run_after_echo ./configure --prefix="$PREFIX" --enable-remote="$REMOTE"
else
# Remove the leftovers from any earlier in-source builds, so this
# out-of-source build does not break because of that.
# https://gitlab.kitware.com/cmake/community/-/wikis/FAQ#what-is-an-out-of-source-build
# (The contents of build/ remaining after an earlier unsuccessful attempt
# can fail subsequent build attempts too, sometimes in non-obvious ways,
# so remove that directory as well.)
run_after_echo rm -rf CMakeFiles/ CMakeCache.txt build/
run_after_echo mkdir build
run_after_echo cd build
run_after_echo cmake ${CFLAGS:+-DEXTRA_CFLAGS="$CFLAGS"} \
-DCMAKE_INSTALL_PREFIX="$PREFIX" -DENABLE_REMOTE="$REMOTE" ..
fi
run_after_echo "$MAKE_BIN" -s clean
if [ "$CMAKE" = no ]; then
run_after_echo "$MAKE_BIN" -s ${CFLAGS:+CFLAGS="$CFLAGS"}
run_after_echo "$MAKE_BIN" -s testprogs ${CFLAGS:+CFLAGS="$CFLAGS"}
else
# The "-s" flag is a no-op and CFLAGS is set using -DEXTRA_CFLAGS above.
run_after_echo "$MAKE_BIN"
run_after_echo "$MAKE_BIN" testprogs
fi
run_after_echo "$MAKE_BIN" install
# VALGRIND_CMD is meant either to collapse or to expand.
# shellcheck disable=SC2086
if [ "$CMAKE" = no ]; then
run_after_echo $VALGRIND_CMD testprogs/findalldevstest
run_after_echo "$MAKE_BIN" releasetar
else
run_after_echo $VALGRIND_CMD run/findalldevstest
fi
handle_matrix_debug
if [ "$DELETE_PREFIX" = yes ]; then
run_after_echo rm -rf "$PREFIX"
fi
# vi: set tabstop=4 softtabstop=0 expandtab shiftwidth=4 smarttab autoindent :