# To make CI scripts maintenance simpler, copies of this file in the
# libpcap, tcpdump and tcpslice git repositories should be identical.
# Please mind that Solaris /bin/sh before 11 does not support the $()
-# command substitution syntax, hence the SC2006 directives.
+# command substitution syntax, hence the "-e SC2006" flag in Makefile.
# A poor man's mktemp(1) for OSes that don't have one (e.g. AIX 7, Solaris 9).
mktempdir_diy() {
while true; do
# /bin/sh implements $RANDOM in AIX 7, but not in Solaris before 11,
# thus use dd and od instead.
- # shellcheck disable=SC2006
- mktempdir_diy_suffix=`dd if=/dev/urandom bs=1 count=4 2>/dev/null | od -t x -A n | head -1 | tr -d '\t '`
+ mktempdir_diy_suffix=`dd if=/dev/urandom bs=4 count=1 2>/dev/null | od -t x -A n | head -1 | tr -d '\t '`
[ -z "$mktempdir_diy_suffix" ] && return 1
mktempdir_diy_path="${TMPDIR:-/tmp}/${1:?}.${mktempdir_diy_suffix}"
# "test -e" would be more appropriate, but it is not available in
echo "$mktempdir_diy_path"
break
fi
- # Try again (AIX /dev/urandom returns zeroes quite often).
+ # Try again (very unlikely, just in case).
done
}
mktempdir() {
mktempdir_prefix=${1:-tmp}
- # shellcheck disable=SC2006
case `os_id` in
Darwin-*|FreeBSD-*|NetBSD-*)
# In these operating systems mktemp(1) always appends an implicit
mktempdir_diy "$mktempdir_prefix"
;;
*)
- # At least Linux and OpenBSD implementations require explicit trailing
- # X'es in the template, so make it the same suffix as above.
+ # At least Haiku, Linux and OpenBSD implementations require explicit
+ # trailing X'es in the template, so make it the same suffix as above.
+ # XXX - is MSYS2 GNU-based, so that it would be like Linux?
mktemp -d -t "${mktempdir_prefix}.XXXXXXXX"
;;
esac
# Try to make the current C compiler print its version information (usually
# multi-line) to stdout.
-# shellcheck disable=SC2006
cc_version_nocache() {
: "${CC:?}"
case `basename "$CC"` in
- gcc*|egcc*|clang*)
+ gcc*|egcc*|clang*|tcc*)
# GCC and Clang recognize --version, print to stdout and exit with 0.
"$CC" --version
;;
;;
esac
;;
+ cl)
+ # Visual Studio's compiler doesn't have a "print the compiler
+ # version" option, but we can get version information by
+ # running it with no options, sending its standard error to
+ # the standard output, and throwing out the usage message;
+ # as we have MSYS2, we can just "head" it out.
+ #
+ # XXX - does it exit with an error?
+ "$CC" 2>&1 | head -2
+ ;;
*)
"$CC" --version || "$CC" -V || :
;;
esac
}
-# shellcheck disable=SC2006
cc_version() {
echo "${cc_version_cached:=`cc_version_nocache`}"
}
# For the current C compiler try to print a short and uniform identification
# string (such as "gcc-9.3.0") that is convenient to use in a case statement.
-# shellcheck disable=SC2006
cc_id_nocache() {
cc_id_firstline=`cc_version | head -1`
: "${cc_id_firstline:?}"
return
fi
- cc_id_guessed=`echo "$cc_id_firstline" | sed 's/^.* (.*) \([0-9\.]*\)$/gcc-\1/'`
+ cc_id_guessed=`echo "$cc_id_firstline" | sed 's/^Microsoft (R) C\/C++ Optimizing Compiler Version \([0-9\.]*\) .*$/msvc-\1/'`
+ if [ "$cc_id_firstline" != "$cc_id_guessed" ]; then
+ echo "$cc_id_guessed"
+ return
+ fi
+
+ # Examples of installed packages:
+ # "tcc version 0.9.27 (x86_64 Linux)"
+ # "tcc version 0.9.27 2023-07-05 mob@5b28165 (x86_64 OpenBSD)"
+ # Example of a development version:
+ # "tcc version 0.9.28rc 2024-04-28 mob@0aca8611 (x86_64 Linux)"
+ cc_id_guessed=`echo "$cc_id_firstline" | sed 's/^.*tcc version \([0-9\.rc]*\).*$/tcc-\1/'`
+ if [ "$cc_id_firstline" != "$cc_id_guessed" ]; then
+ echo "$cc_id_guessed"
+ return
+ fi
+
+ # OpenBSD default GCC:
+ # "gcc (GCC) 4.2.1 20070719"
+ # RedHat GCC:
+ # "gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2)"
+ # "gcc (GCC) 10.3.1 20210422 (Red Hat 10.3.1-1)"
+ # other GCC packages:
+ # "sparc-sun-solaris2.9-gcc (GCC) 4.2.0 (gccfss)"
+ # "gcc (GCC) 5.5.0"
+ # "gcc (nb4 20200810) 7.5.0"
+ # "gcc (OpenIndiana 7.5.0-il-0) 7.5.0"
+ # "gcc (Debian 8.3.0-6) 8.3.0"
+ # "gcc (Raspbian 8.3.0-6+rpi1) 8.3.0"
+ # "egcc (GCC) 8.4.0"
+ # "gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0"
+ # "gcc (FreeBSD Ports Collection) 10.3.0"
+ cc_id_guessed=`echo "$cc_id_firstline" | sed 's/^.* (.*) \([0-9\.]*\).*$/gcc-\1/'`
if [ "$cc_id_firstline" != "$cc_id_guessed" ]; then
echo "$cc_id_guessed"
return
fi
}
-# shellcheck disable=SC2006
cc_id() {
echo "${cc_id_cached:=`cc_id_nocache`}"
}
# For the current C compiler try to print CFLAGS value that tells to treat
# warnings as errors.
-# shellcheck disable=SC2006
cc_werr_cflags() {
case `cc_id` in
- gcc-*|clang-*)
+ gcc-*|clang-*|tcc-*)
echo '-Werror'
;;
xlc-*)
echo '-qhalt=w'
;;
suncc-*)
- echo '-errwarn=%all'
+ # GCC and Clang print an identification for every warning, which is
+ # useful for root cause analysis and bug fixing. Sun C does not do it
+ # by default, but an additional option makes the style more consistent.
+ echo '-errwarn=%all -errtags=yes'
+ ;;
+ msvc-*)
+ # XXX - what?
+ echo ''
;;
esac
}
# Tell whether "gcc" is a symlink to Clang (this is the case on macOS).
-# shellcheck disable=SC2006
gcc_is_clang_in_disguise() {
case `cc_id`/`basename "${CC:?}"` in
clang-*/gcc)
return 1
}
-# shellcheck disable=SC2006
os_id() {
# OS does not change between builds or in the middle of a build, so it is
# fine to cache uname output.
: "${os_id_version:=`uname -v`}"
echo "${os_id_version}.${os_id_release}"
;;
- Darwin|NetBSD|OpenBSD|SunOS)
+ Darwin|GNU|OpenBSD|SunOS)
echo "$os_id_release"
;;
- FreeBSD|Linux)
+ FreeBSD|NetBSD|Linux)
# Meaningful version is usually the substring before the first dash.
+ # Or the first underscore.
echo "$os_id_release" | sed 's/^\([0-9\.]*\).*$/\1/'
;;
+ Haiku)
+ # The complete version is a substring before the first space, e.g.:
+ # * "hrevNNNNN" for a release without updates, e.g. hrev56578 for
+ # R1/beta4, also for a clean build of master branch;
+ # * "hrevNNNNN+MM" for a release with updates;
+ # * "hrevNNNNN-MM" for a build of a branch that is ahead of the master
+ # branch;
+ # * "hrevNNNNN_MMMM_KK" for a CI build of a Gerrit review;
+ # * something else for a build of a working copy with the changes not
+ # yet committed.
+ # With this system it is not clear which version components would be
+ # meaningful to relate with the build result, so let's return the
+ # complete version and leave any interpretation to the user.
+ : "${os_id_version:=`uname -v`}"
+ echo "$os_id_version" | sed -E 's/^(hrev[^ ]+).+$/\1/'
+ ;;
+ MSYS*)
+ # uname -s produces "MSYS_NT-{NT version?}-{build?}
+ # uname -r produces MSYS2 version?
+ echo "$os_id_version", MSYS "$os_id_release"
+ ;;
*)
echo 'UNKNOWN'
;;
increment() {
# No arithmetic expansion in Solaris /bin/sh before 11.
- echo "${1:?} + 1" | bc
+ # shellcheck disable=SC2003
+ expr "${1:?}" + 1
}
# Display text in magenta.
}
print_so_deps() {
- # shellcheck disable=SC2006
case `os_id` in
Darwin-*)
run_after_echo otool -L "${1:?}"
;;
+ Haiku-*)
+ run_after_echo objdump -p "${1:?}"
+ ;;
+ MSYS*)
+ run_after_echo dumpbin /dependents "${1:?}"
+ ;;
*)
run_after_echo ldd "${1:?}"
;;
}
purge_directory() {
- # shellcheck disable=SC2006
if [ "`os_id`" = SunOS-5.11 ]; then
# In Solaris 11 /bin/sh the pathname expansion of "*" always includes
# "." and "..", so the straightforward rm would always fail.
projects / tcpdump / blobdiff