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m4-ccas revision 1.1.1.2 
      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 either:
     11 #
     12 #    * the GNU Lesser General Public License as published by the Free
     13 #      Software Foundation; either version 3 of the License, or (at your
     14 #      option) any later version.
     15 #
     16 #  or
     17 #
     18 #    * the GNU General Public License as published by the Free Software
     19 #      Foundation; either version 2 of the License, or (at your option) any
     20 #      later version.
     21 #
     22 #  or both in parallel, as here.
     23 #
     24 #  The GNU MP Library is distributed in the hope that it will be useful, but
     25 #  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     26 #  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
     27 #  for more details.
     28 #
     29 #  You should have received copies of the GNU General Public License and the
     30 #  GNU Lesser General Public License along with the GNU MP Library.  If not,
     31 #  see https://www.gnu.org/licenses/.
     32 
     33 
     34 # Usage: m4-ccas --m4=M4 CC ... file.asm ...
     35 #
     36 # Process file.asm with the given M4 plus any -D arguments, then
     37 # assemble with the given CC plus all arguments.
     38 #
     39 # The M4 command must be in a single --m4= argument, and will be split
     40 # on whitespace.  When CC is invoked file.asm is replaced with a
     41 # temporary .s file which is the M4 output.
     42 #
     43 # To allow parallel builds, the temp file name is based on the .asm
     44 # file name, which will be the output object filename for all uses we
     45 # put this script to.
     46 
     47 M4=
     48 CC=
     49 DEFS=
     50 ASM=
     51 SEEN_O=no
     52 
     53 for i in "$@"; do
     54   case $i in
     55     --m4=*)
     56       M4=`echo "$i" | sed 's/^--m4=//'`
     57       ;;
     58     -D*)
     59       DEFS="$DEFS $i"
     60       CC="$CC $i"
     61       ;;
     62     *.asm)
     63       if test -n "$ASM"; then
     64         echo "Only one .asm file permitted"
     65         exit 1
     66       fi
     67       BASENAME=`echo "$i" | sed -e 's/\.asm$//' -e 's/^.*[\\/:]//'`
     68       TMP=tmp-$BASENAME.s
     69       ASM=$i
     70       CC="$CC $TMP"
     71       ;;
     72     -o)
     73       SEEN_O=yes
     74       CC="$CC $i"
     75       ;;
     76     *)
     77       CC="$CC $i"
     78       ;;
     79   esac
     80 done
     81 
     82 if test -z "$M4"; then
     83   echo "No --m4 specified"
     84   exit 1
     85 fi
     86 
     87 if test -z "$ASM"; then
     88   echo "No .asm specified"
     89   exit 1
     90 fi
     91 
     92 # Libtool adds it's own -o when sending output to .libs/foo.o, but not
     93 # when just wanting foo.o in the current directory.  We need an
     94 # explicit -o in both cases since we're assembling tmp-foo.s.
     95 #
     96 if test $SEEN_O = no; then
     97   CC="$CC -o $BASENAME.o"
     98 fi
     99 
    100 echo "$M4 $DEFS $ASM >$TMP"
    101 $M4 $DEFS $ASM >$TMP || exit
    102 
    103 echo "$CC"
    104 $CC || exit
    105 
    106 # Comment this out to preserve .s intermediates
    107 rm -f $TMP
    108