Mercurial > hg > index.cgi
annotate extra/as @ 122:2be2649841f8
Fixed embarrassing off by one in insn_rel length calculation
author | lost@l-w.ca |
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date | Wed, 10 Aug 2011 19:05:49 -0600 |
parents | 84eb35251849 |
children | f5a88f147fae |
rev | line source |
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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 -Qy) |
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103 # "identify in output" - ignore |
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104 true |
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105 ;; |
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106 -*) |
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107 echo "as (m6809): unrecognized option $arg" |
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108 exit 1 |
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109 ;; |
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110 *) |
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111 input_file=$arg |
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112 ;; |
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113 esac |
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114 done |
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115 |
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116 # Complain if no input files given. We don't support redirecting |
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117 # from standard input. |
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118 |
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119 if [ "x$input_file" = "x" ]; then |
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120 fatal_error "no input file specified" |
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121 fi |
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122 |
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123 # Invoke the real (lwasm) assembler. |
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124 # The -o option specifies the output file name |
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125 # --obj creates object files |
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126 # --pragma=undefextern causes undefined symbols to be assumed external |
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127 # --pragma=cescapes allows C escape syntax in strings |
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128 #echo lwasm -o "$output_file" $options --obj --pragma=undefextern --pragma=cescapes $input_file |
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129 lwasm -o "$output_file" $options --obj --pragma=undefextern --pragma=cescapes --pragma=importundefexport $input_file |
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130 rc=$? |
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131 |
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132 # OK, see if the assembler succeeded or not. |
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133 # If it failed, the source is copied to /tmp/as6809_error.s |
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134 # so that it can be inspected. GCC will normally delete any |
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135 # temporary .s files that it generates. This makes debugging |
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136 # the compiler easier. |
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137 # |
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138 # lwasm does not create an output file if it errors out but it also doesn't |
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139 # remove an existing file if it fails so we remove it anyway... |
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140 |
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141 if [ "$rc" != "0" ]; then |
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142 cp -p $input_file /tmp/as6809_error.s |
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143 rm -f $asoutput_file |
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144 exit $rc |
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145 fi |
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146 |
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147 # we don't need anything fancy here since lwasm supports specifying output |
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148 # file names.... |