source/libs/gmp/gmp-src/mpn/cpp-ccas

   1 #!/bin/sh
   2 #
   3 # A helper script for Makeasm.am .S.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: cpp-cc --cpp=CPP CC ... file.S ...
  35 #
  36 # Process file.S with the given CPP command plus any -D options in the
  37 # rest of the arguments, then assemble with the given CC plus all
  38 # arguments.
  39 #
  40 # The CPP command must be in a single --cpp= argument, and will be
  41 # split on whitespace.  It should include -I options required.
  42 #
  43 # When CC is invoked, file.S is replaced with a temporary .s file
  44 # which is the CPP output.
  45 #
  46 # Any lines starting with "#" are removed from the CPP output, usually
  47 # these will be #line and #file markers from CPP, but they might also
  48 # be comments from the .S.
  49 #
  50 # To allow parallel builds, the temp file name is based on the .S file
  51 # name, which will be the output object filename for all uses we put
  52 # this script to.
  53
  54 CPP=
  55 CPPDEFS=
  56 CC=
  57 S=
  58 SEEN_O=no
  59
  60 for i in "$@"; do
  61   case $i in
  62     --cpp=*)
  63       CPP=`echo "$i" | sed 's/^--cpp=//'`
  64       ;;
  65     -D*)
  66       CPPDEFS="$CPPDEFS $i"
  67       CC="$CC $i"
  68       ;;
  69     *.S)
  70       if test -n "$S"; then
  71         echo "Only one .S file permitted"
  72         exit 1
  73       fi
  74       BASENAME=`echo "$i" | sed -e 's/\.S$//' -e 's/^.*[\\/:]//'`
  75       S=$i
  76       TMP_I=tmp-$BASENAME.i
  77       TMP_S=tmp-$BASENAME.s
  78       CC="$CC $TMP_S"
  79       ;;
  80     -o)
  81       SEEN_O=yes
  82       CC="$CC $i"
  83       ;;
  84     *)
  85       CC="$CC $i"
  86       ;;
  87   esac
  88 done
  89
  90 if test -z "$CPP"; then
  91   echo "No --cpp specified"
  92   exit 1
  93 fi
  94
  95 if test -z "$S"; then
  96   echo "No .S specified"
  97   exit 1
  98 fi
  99
 100 # Libtool adds it's own -o when sending output to .libs/foo.o, but not
 101 # when just wanting foo.o in the current directory.  We need an
 102 # explicit -o in both cases since we're assembling tmp-foo.s.
 103 #
 104 if test $SEEN_O = no; then
 105   CC="$CC -o $BASENAME.o"
 106 fi
 107
 108 echo "$CPP $CPPDEFS $S >$TMP_I"
 109 $CPP $CPPDEFS $S >$TMP_I || exit
 110
 111 echo "grep -v '^#' $TMP_I >$TMP_S"
 112 grep -v '^#' $TMP_I >$TMP_S
 113
 114 echo "$CC"
 115 $CC || exit
 116
 117 # Comment this out to preserve .s intermediates
 118 rm -f $TMP