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m4-ccas revision 1.1 
      1 #!/bin/sh
      2 #
      3 # A helper script for Makeasm.am .asm.lo rule.
      4 
      5 # Copyright 2001 Free Software Foundation, Inc.
      6 #
      7 # This file is part of the GNU MP Library.
      8 #
      9 # The GNU MP Library is free software; you can redistribute it and/or modify
     10 # it under the terms of the GNU Lesser General Public License as published by
     11 # the Free Software Foundation; either version 3 of the License, or (at your
     12 # option) any later version.
     13 #
     14 # The GNU MP Library is distributed in the hope that it will be useful, but
     15 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     16 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
     17 # License for more details.
     18 #
     19 # You should have received a copy of the GNU Lesser General Public License
     20 # along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.
     21 
     22 
     23 # Usage: m4-ccas --m4=M4 CC ... file.asm ...
     24 #
     25 # Process file.asm with the given M4 plus any -D arguments, then
     26 # assemble with the given CC plus all arguments.
     27 #
     28 # The M4 command must be in a single --m4= argument, and will be split
     29 # on whitespace.  When CC is invoked file.asm is replaced with a
     30 # temporary .s file which is the M4 output.
     31 #
     32 # To allow parallel builds, the temp file name is based on the .asm
     33 # file name, which will be the output object filename for all uses we
     34 # put this script to.
     35 
     36 M4=
     37 CC=
     38 DEFS=
     39 ASM=
     40 SEEN_O=no
     41 
     42 for i in "$@"; do
     43   case $i in
     44     --m4=*)
     45       M4=`echo "$i" | sed 's/^--m4=//'`
     46       ;;
     47     -D*)
     48       DEFS="$DEFS $i"
     49       CC="$CC $i"
     50       ;;
     51     *.asm)
     52       if test -n "$ASM"; then
     53         echo "Only one .asm file permitted"
     54         exit 1
     55       fi
     56       BASENAME=`echo "$i" | sed -e 's/\.asm$//' -e 's/^.*[\\/:]//'`
     57       TMP=tmp-$BASENAME.s
     58       ASM=$i
     59       CC="$CC $TMP"
     60       ;;
     61     -o)
     62       SEEN_O=yes
     63       CC="$CC $i"
     64       ;;
     65     *)
     66       CC="$CC $i"
     67       ;;
     68   esac
     69 done
     70 
     71 if test -z "$M4"; then
     72   echo "No --m4 specified"
     73   exit 1
     74 fi
     75 
     76 if test -z "$ASM"; then
     77   echo "No .asm specified"
     78   exit 1
     79 fi
     80 
     81 # Libtool adds it's own -o when sending output to .libs/foo.o, but not
     82 # when just wanting foo.o in the current directory.  We need an
     83 # explicit -o in both cases since we're assembling tmp-foo.s.
     84 #
     85 if test $SEEN_O = no; then
     86   CC="$CC -o $BASENAME.o"
     87 fi
     88 
     89 echo "$M4 $DEFS $ASM >$TMP"
     90 $M4 $DEFS $ASM >$TMP || exit
     91 
     92 echo "$CC"
     93 $CC || exit
     94 
     95 # Comment this out to preserve .s intermediates
     96 rm -f $TMP
     97