# mamprobe - generate MAM cc probe info
# this script is written to make it through all sh variants
# Glenn Fowler <gsf@research.att.com>
case $-:$BASH_VERSION in
*x*:[0123456789]*) : bash set -x is broken :; set +ex ;;
esac
command=mamprobe
# check the options
opt=
case `(getopts '[-][123:xyz]' opt --xyz; echo 0$opt) 2>/dev/null` in
0123) USAGE=$'
[-?
@(#)$Id: mamprobe (AT&T Labs Research) 2007-04-11 $
]
[+NAME?mamprobe - generate MAM cc probe info]
[+DESCRIPTION?\bmamprobe\b generates MAM (make abstract machine) \bcc\b(1)
probe information for use by \bmamake\b(1). \acc-path\a is the
absolute path of the probed compiler and \ainfo-file\a is where
the information is placed. \ainfo-file\a is usually
\b$INSTALLROOT/lib/probe/C/mam/\b\ahash\a, where \ahash\a is a hash
of \acc-path\a. Any \ainfo-file\a directories are created if needed.
If \ainfo-file\a is \b-\b then the probe information is written to
the standard output.]
[+?\bmamprobe\b and \bmamake\b are used in the bootstrap phase of
\bpackage\b(1) installation before \bnmake\b(1) is built. The
probed variable names are the \bnmake\b(1) names with a \bmam_\b
prefix, \bCC\b converted to \bcc\b, and \b.\b converted to \b_\b.
Additional variables are:]{
[+_hosttype_?the \bpackage\b(1) host type]
[+mam_cc_L?\b-L\b\adir\a supported]
[+STDCAT?command to execute for \bcat\b(1); prefixed by
\bexecrate\b(1) on \b.exe\b challenged systems]
[+STDCHMOD?command to execute for \bchmod\b(1); prefixed by
\bexecrate\b(1) on \b.exe\b challenged systems]
[+STDCMP?command to execute for \bcmp\b(1); prefixed by
\bexecrate\b(1) on \b.exe\b challenged systems]
[+STDCP?command to execute for \bcp\b(1); prefixed by
\bexecrate\b(1) on \b.exe\b challenged systems]
[+STDED?command to execute for \bed\b(1) or \bex\b(1)]
[+STDEDFLAGS?flags for \bSTDED\b]
[+STDLN?command to execute for \bln\b(1); prefixed by
\bexecrate\b(1) on \b.exe\b challenged systems]
[+STDMV?command to execute for \bmv\b(1); prefixed by
\bexecrate\b(1) on \b.exe\b challenged systems]
[+STDRM?command to execute for \brm\b(1); prefixed by
\bexecrate\b(1) on \b.exe\b challenged systems]
}
[d:debug?Enable probe script debug trace.]
info-file cc-path
[+SEE ALSO?\bexecrate\b(1), \bpackage\b(1), \bmamake\b(1), \bnmake\b(1),
\bprobe\b(1)]
'
while getopts -a "$command" "$USAGE" OPT
do case $OPT in
d) opt=-d ;;
esac
done
shift `expr $OPTIND - 1`
;;
*) while :
do case $# in
0) break ;;
esac
case $1 in
--) shift
break
;;
-) break
;;
-d) opt=-d
;;
-*) echo $command: $1: unknown option >&2
;;
*) break
;;
esac
set ''
break
done
;;
esac
# check the args
case $1 in
-) ;;
/*) ;;
*) set '' ;;
esac
case $2 in
/*) ;;
*) set '' ;;
esac
case $# in
0|1) echo "Usage: $command info-file cc-path" >&2; exit 2 ;;
esac
info=$1
shift
cc=$*
# find the make probe script
ifs=${IFS-'
'}
IFS=:
set $PATH
IFS=$ifs
script=lib/probe/C/make/probe
while :
do case $# in
0) echo "$0: ../$script: probe script not found on PATH" >&2
exit 1
;;
esac
case $1 in
'') continue ;;
esac
makeprobe=`echo $1 | sed 's,[^/]*$,'$script,`
if test -x $makeprobe
then break
fi
shift
done
# create the info dir if necessary
case $info in
/*) i=X$info
ifs=${IFS-'
'}
IFS=/
set $i
IFS=$ifs
while :
do i=$1
shift
case $i in
X) break ;;
esac
done
case $info in
//*) path=/ ;;
*) path= ;;
esac
while :
do case $# in
0|1) break ;;
esac
comp=$1
shift
case $comp in
'') continue ;;
esac
path=$path/$comp
if test ! -d $path
then mkdir $path || exit
fi
done
;;
esac
# generate info in a tmp file and rename when finished
case $info in
-) ;;
*) tmp=/tmp/mam$$
trap "exec >/dev/null; rm -f $tmp" 0 1 2 3 15
exec > $tmp
echo "probing C language processor $cc for mam information" >&2
;;
esac
echo "note generated by $0 for $cc"
(
set '' $opt $cc
shift
. $makeprobe "$@"
case " $CC_DIALECT " in
*" -L "*) echo "CC.L = 1" ;;
esac
) | sed \
-e '/^CC\./!d' \
-e 's/^CC./setv mam_cc_/' \
-e 's/^\([^=.]*\)\./\1_/' \
-e 's/^\([^=.]*\)\./\1_/' \
-e 's/ =//' \
-e 's/\$("\([^"]*\)")/\1/g' \
-e 's/\$(\([^)]*\))/${\1}/g' \
-e 's/\${CC\./${mam_cc_}/g'
echo 'setv _hosttype_ ${mam_cc_HOSTTYPE}'
# STD* are standard commands/flags with possible execrate(1)
if (
ed <<!
q
!
) < /dev/null > /dev/null 2>&1
then STDED=ed
else STDED=ex
fi
STDEDFLAGS=-
set STDCAT cat STDCHMOD chmod STDCMP cmp STDCP cp STDLN ln STDMV mv STDRM rm
while :
do case $# in
0|1) break ;;
esac
p=$2
for d in /bin /usr/bin /usr/sbin
do if test -x $d/$p
then p=$d/$p
break
fi
done
eval $1=\$p
shift
shift
done
if execrate
then for n in STDCAT STDCHMOD STDCMP STDCP STDLN STDMV STDRM
do eval $n=\"execrate \$$n\"
done
fi
for n in STDCAT STDCHMOD STDCMP STDCP STDED STDEDFLAGS STDLN STDMV STDRM
do eval echo setv \$n \$$n
done
# all done
case $info in
-) ;;
*) exec >/dev/null
test -f $info && rm -f $info
cp $tmp $info
chmod -w $info
;;
esac