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Guard against single operand multiplication when detecting like terms This *shouldn't* happen, but it apparently does in some pathological cases so guard against a single operand multiplication to prevent a crash.
author William Astle <lost@l-w.ca>
date Mon, 04 Nov 2024 23:48:23 -0700
parents a3711f5ac569
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/bin/sh
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2 #
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3 #
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4 # Copyright 2009 by William Astle <lost@l-w.ca>
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5 #
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6 #This file is part of LWTOOLS.
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7 #
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8 #LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 #terms of the GNU General Public License as published by the Free Software
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10 #Foundation, either version 3 of the License, or (at your option) any later
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11 #version.
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12 #
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13 #This program is distributed in the hope that it will be useful, but WITHOUT
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14 #ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 #FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 #more details.
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17 #
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18 #You should have received a copy of the GNU General Public License along with
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19 #this program. If not, see <http://www.gnu.org/licenses/>.
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20
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21 # this was based somewhat on the "as" script from gcc6809
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22
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23 #echo "LWTOOLS-ld $0 $*"
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24 path_to_lwlink=lwlink
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25
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26 # Set defaults. Some are based on the target type, which is
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27 # determined by the name by which the program was invoked.
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28 output_file=a.out
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29 libpaths=
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30 libs=
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31 stdlibpaths="-L=/usr/local/lib -L=/usr/lib -L=/lib"
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32 verbose=
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33
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34 if [ "$verbose" = 1 ]; then
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35 echo "$0 $@"
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36 fi
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37
72
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38 case $0 in
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39 *m6809-coco-*)
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40 options="--format=decb"
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41 # options="-b .text=0x2000 -b .data=0x7000 -b .bss=0x7C00 -b .ctors=0x7F00 -b .dtors=0x7F80 -b vector=0x7FF0"
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42 # aslink_options="-nwxst"
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43 # exe_suffix=.bin
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44 ;;
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45 *)
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46 options="--format=raw"
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47 # options="-b .text=0x8000 -b .data=0x1000 -b .bss=0x0100 -b .ctors=0xFD00 -b .dtors=0xFE00 -b vector=0xFFF0"
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48 # aslink_options="-nwxso"
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49 # exe_suffix=.s19
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50 ;;
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51 esac
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52
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53
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54 while [ "$*" != "" ]; do
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55 arg=$1; shift
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56 case $arg in
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57 -d|-dc|-dp)
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58 # force allocation of space to common symbols
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59 # even if relocatable output file is specified
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60 # not supported by targets
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61 ;;
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62 -X)
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63 # strip unneeded stuff
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64 # ignored - really just a no-op
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65 ;;
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66 -gn)
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67 # Generate NoICE debug file
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68 # ignored because debugging not supported by targets
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69 ;;
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70 -gs)
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71 # Generate SDCC debug file
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72 # ignored because debugging not supported by targets
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73 ;;
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74 -o)
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75 output_file=$1; shift
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76 ;;
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77 --oformat=*)
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78 arg=${arg#--oformat=};
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79 options="$options --format=$arg"
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80 ;;
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81 -L*)
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82 arg=${arg#-L}
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83 libpaths="$libpaths --library-path=$arg"
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84 ;;
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85 -l*)
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86 arg=${arg#-l}
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87 libs="$libs --library=$arg"
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88 ;;
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89 --section-start)
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90 section_value=$1; shift
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91 options="$options --section-base=$section_value"
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92 ;;
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93
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94 -Map=*)
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95 arg=${arg#-Map=};
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96 options="$options --map=$arg"
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97 ;;
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98
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99 --script=*)
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100 options="$options $arg"
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101 ;;
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102 -T)
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103 options="$options --script=$1"; shift
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104 ;;
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105 -Tbss)
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106 options="$options --section-base=.bss=$1"; shift
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107 ;;
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108 -Tdata)
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109 options="$options --section-base=.data=$1"; shift
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110 ;;
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111 -Ttext|-Tcode)
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112 options="$options --section-base=.text=$1"; shift
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113 ;;
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114 -v|--verbose)
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115 verbose=1
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116 ;;
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117 *crt0.o)
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118 startup_files=$arg
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119 ;;
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120 -g)
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121 # Ignored by GNU ld; we should do the same
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122 ;;
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123 -h|--help)
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124 echo "ld (m6809)"
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125 exit 0
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126 ;;
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127 --format-lwex)
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128 options="$options --format=lwex"
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129 ;;
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130
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131 --sysroot=*)
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132 options="$options $arg"
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133 ;;
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134
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135 -nostdlib)
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136 stdlibpaths=
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137 ;;
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138
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139 -e)
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140 options="$options --entry=$1"
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141 shift
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142 ;;
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143
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144 --entry)
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145 options="$options $arg"
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146 ;;
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147
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148 --relax)
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149 ;;
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150 --start-group)
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151 ;;
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152 --end-group)
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153 ;;
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154 --gc-sections)
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155 ;;
72
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156 -*)
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157 echo "ld (m6809): unknown option $arg"
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158 exit 1
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159 ;;
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160 *)
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161 input_files="$input_files $arg"
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162 ;;
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163 esac
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164 done
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165
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166 options="$options -o $output_file"
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167
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168 if [ "$verbose" = "1" ]; then
179
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169 echo "$path_to_lwlink $options $input_files $startup_files $libpaths $stdlibpaths $libs"
72
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170 fi
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171
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172 $path_to_lwlink $options $input_files $startup_files $libpaths $libs
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173 rc=$?
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174
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175 if [ "$rc" != "0" ]; then
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176 rm -f $output_file
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177 exit $rc
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178 fi