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1 #!/bin/sh
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2 #
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3 # Copyright 2009 by William Astle <lost@l-w.ca>
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4 #
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5 #This file is part of LWASM.
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6 #
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7 #LWASM is free software: you can redistribute it and/or modify it under the
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8 #terms of the GNU General Public License as published by the Free Software
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9 #Foundation, either version 3 of the License, or (at your option) any later
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10 #version.
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11 #
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12 #This program is distributed in the hope that it will be useful, but WITHOUT
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13 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 #more details.
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16 #
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17 #You should have received a copy of the GNU General Public License along with
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18 #this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 # this was based somewhat on the "as" script from gcc6809
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21
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22 #echo "LWASM-as $0 $*"
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23
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24 show_version () {
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25 cat <<END
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26 LWASM (GNU assembler frontend) 2.3
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27 This program is free software; you may redistribute it under the terms of
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28 the GNU General Public License. This program has absolutely no warranty.
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29 END
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30 }
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31
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32 fatal_error () {
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33 echo $* 1>&2
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34 exit 1
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35 }
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36
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37 # Assume nothing.
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38
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39 input_file=
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40 output_file=
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41 list_file=
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42 options=
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43 list_file_enabled=n
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44
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45 # Parse the command-line options. See the GNU 'as' man page for
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46 # an explanation of all these options. Our goal is to translate
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47 # them into lwasm form.
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48
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49 while [ "$1" != "" ]; do
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50 arg=$1; shift
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51 case $arg in
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52 -m6809)
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53 true
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54 ;;
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55 -gn)
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56 # Generate NoICE debug symbols
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57 # ignored - no output formats support debugging symbols
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58 ;;
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59 -gs)
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60 # Generate SDCC debug symbols
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61 # ignored - no output formats supprt debugging symbols
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62 ;;
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63 # --globalize-symbols)
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64 # # Make all symbols global
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65 # # lwasm does not support globalizing everything by default
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66 # ;;
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67 -m*)
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68 fatal_error "invalid CPU option '$arg'"
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69 ;;
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70 --)
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71 fatal_error "standard input not supported"
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72 ;;
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73 # -a*)
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74 # options="${options}lc"
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75 # list_file_enabled=y
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76 # ;;
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77 -I*)
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78 #include_file=${arg#-I}
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79 #echo "warning: include path '$include_file' ignored"
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80 ;;
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81 -MD)
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82 fatal_error "assembler option '$arg' not supported"
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83 ;;
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84 -o)
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85 output_file=$1; shift
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86 ;;
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87 -v|-version)
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88 show_version
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89 ;;
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90 --version)
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91 show_version
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92 exit 0
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93 ;;
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94 -D|-f|-K|--traditional-format|-w|-x|-Z|-W|--no-warn)
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95 # These options are accepted but ignored by GNU as.
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96 true
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97 ;;
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98 # =*)
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99 # # Set the name of the listing file
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100 # list_file=${arg#=}
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101 # ;;
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102 -*)
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103 echo "as (m6809): unrecognized option $arg"
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104 exit 1
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105 ;;
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106 *)
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107 input_file=$arg
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108 ;;
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109 esac
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110 done
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111
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112 # Complain if no input files given. We don't support redirecting
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113 # from standard input.
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114
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115 if [ "x$input_file" = "x" ]; then
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116 fatal_error "no input file specified"
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117 fi
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118
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119 # Invoke the real (lwasm) assembler.
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120 # The -o option specifies the output file name
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121 # --obj creates object files
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122 # --pragma=undefextern causes undefined symbols to be assumed external
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123 # --pragma=cescapes allows C escape syntax in strings
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124 #echo lwasm -o "$output_file" $options --obj --pragma=undefextern --pragma=cescapes $input_file
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125 lwasm -o "$output_file" $options --obj --pragma=undefextern --pragma=cescapes $input_file
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126 rc=$?
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127
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128 # OK, see if the assembler succeeded or not.
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129 # If it failed, the source is copied to /tmp/as6809_error.s
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130 # so that it can be inspected. GCC will normally delete any
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131 # temporary .s files that it generates. This makes debugging
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132 # the compiler easier.
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133 #
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134 # lwasm does not create an output file if it errors out but it also doesn't
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135 # remove an existing file if it fails so we remove it anyway...
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136
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137 if [ "$rc" != "0" ]; then
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138 cp -p $input_file /tmp/as6809_error.s
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139 rm -f $asoutput_file
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140 exit $rc
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141 fi
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142
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143 # we don't need anything fancy here since lwasm supports specifying output
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144 # file names....
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