1 | #!/usr/local/bin/perl
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2 |
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3 | use Config;
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4 | use File::Basename qw(&basename &dirname);
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5 | use Cwd;
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6 | use subs qw(link);
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7 |
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8 | sub link { # This is a cut-down version of installperl:link().
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9 | my($from,$to) = @_;
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10 | my($success) = 0;
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11 |
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12 | eval {
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13 | CORE::link($from, $to)
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14 | ? $success++
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15 | : ($from =~ m#^/afs/# || $to =~ m#^/afs/#)
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16 | ? die "AFS" # okay inside eval {}
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17 | : die "Couldn't link $from to $to: $!\n";
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18 | };
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19 | if ($@) {
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20 | warn $@;
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21 | require File::Copy;
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22 | File::Copy::copy($from, $to)
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23 | ? $success++
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24 | : warn "Couldn't copy $from to $to: $!\n";
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25 | }
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26 | $success;
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27 | }
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28 |
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29 | # List explicitly here the variables you want Configure to
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30 | # generate. Metaconfig only looks for shell variables, so you
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31 | # have to mention them as if they were shell variables, not
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32 | # %Config entries. Thus you write
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33 | # $startperl
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34 | # to ensure Configure will look for $Config{startperl}.
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35 |
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36 | # This forces PL files to create target in same directory as PL file.
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37 | # This is so that make depend always knows where to find PL derivatives.
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38 | $origdir = cwd;
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39 | chdir dirname($0);
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40 | $file = basename($0, '.PL');
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41 | $file .= '.com' if $^O eq 'VMS';
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42 |
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43 | open OUT,">$file" or die "Can't create $file: $!";
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44 |
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45 | print "Extracting $file (with variable substitutions)\n";
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46 |
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47 | # In this section, perl variables will be expanded during extraction.
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48 | # You can use $Config{...} to use Configure variables.
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49 |
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50 | print OUT <<"!GROK!THIS!";
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51 | $Config{startperl}
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52 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
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53 | if \$running_under_some_shell;
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54 | !GROK!THIS!
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55 |
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56 | # In the following, perl variables are not expanded during extraction.
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57 |
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58 | print OUT <<'!NO!SUBS!';
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59 | #
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60 | #
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61 | # c2ph (aka pstruct)
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62 | # Tom Christiansen, <tchrist@convex.com>
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63 | #
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64 | # As pstruct, dump C structures as generated from 'cc -g -S' stabs.
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65 | # As c2ph, do this PLUS generate perl code for getting at the structures.
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66 | #
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67 | # See the usage message for more. If this isn't enough, read the code.
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68 | #
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69 |
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70 | =head1 NAME
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71 |
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72 | c2ph, pstruct - Dump C structures as generated from C<cc -g -S> stabs
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73 |
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74 | =head1 SYNOPSIS
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75 |
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76 | c2ph [-dpnP] [var=val] [files ...]
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77 |
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78 | =head2 OPTIONS
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79 |
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80 | Options:
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81 |
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82 | -w wide; short for: type_width=45 member_width=35 offset_width=8
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83 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04
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84 |
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85 | -n do not generate perl code (default when invoked as pstruct)
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86 | -p generate perl code (default when invoked as c2ph)
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87 | -v generate perl code, with C decls as comments
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88 |
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89 | -i do NOT recompute sizes for intrinsic datatypes
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90 | -a dump information on intrinsics also
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91 |
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92 | -t trace execution
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93 | -d spew reams of debugging output
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94 |
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95 | -slist give comma-separated list a structures to dump
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96 |
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97 | =head1 DESCRIPTION
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98 |
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99 | The following is the old c2ph.doc documentation by Tom Christiansen
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100 | <tchrist@perl.com>
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101 | Date: 25 Jul 91 08:10:21 GMT
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102 |
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103 | Once upon a time, I wrote a program called pstruct. It was a perl
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104 | program that tried to parse out C structures and display their member
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105 | offsets for you. This was especially useful for people looking at
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106 | binary dumps or poking around the kernel.
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107 |
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108 | Pstruct was not a pretty program. Neither was it particularly robust.
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109 | The problem, you see, was that the C compiler was much better at parsing
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110 | C than I could ever hope to be.
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111 |
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112 | So I got smart: I decided to be lazy and let the C compiler parse the C,
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113 | which would spit out debugger stabs for me to read. These were much
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114 | easier to parse. It's still not a pretty program, but at least it's more
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115 | robust.
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116 |
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117 | Pstruct takes any .c or .h files, or preferably .s ones, since that's
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118 | the format it is going to massage them into anyway, and spits out
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119 | listings like this:
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120 |
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121 | struct tty {
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122 | int tty.t_locker 000 4
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123 | int tty.t_mutex_index 004 4
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124 | struct tty * tty.t_tp_virt 008 4
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125 | struct clist tty.t_rawq 00c 20
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126 | int tty.t_rawq.c_cc 00c 4
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127 | int tty.t_rawq.c_cmax 010 4
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128 | int tty.t_rawq.c_cfx 014 4
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129 | int tty.t_rawq.c_clx 018 4
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130 | struct tty * tty.t_rawq.c_tp_cpu 01c 4
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131 | struct tty * tty.t_rawq.c_tp_iop 020 4
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132 | unsigned char * tty.t_rawq.c_buf_cpu 024 4
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133 | unsigned char * tty.t_rawq.c_buf_iop 028 4
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134 | struct clist tty.t_canq 02c 20
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135 | int tty.t_canq.c_cc 02c 4
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136 | int tty.t_canq.c_cmax 030 4
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137 | int tty.t_canq.c_cfx 034 4
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138 | int tty.t_canq.c_clx 038 4
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139 | struct tty * tty.t_canq.c_tp_cpu 03c 4
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140 | struct tty * tty.t_canq.c_tp_iop 040 4
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141 | unsigned char * tty.t_canq.c_buf_cpu 044 4
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142 | unsigned char * tty.t_canq.c_buf_iop 048 4
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143 | struct clist tty.t_outq 04c 20
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144 | int tty.t_outq.c_cc 04c 4
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145 | int tty.t_outq.c_cmax 050 4
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146 | int tty.t_outq.c_cfx 054 4
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147 | int tty.t_outq.c_clx 058 4
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148 | struct tty * tty.t_outq.c_tp_cpu 05c 4
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149 | struct tty * tty.t_outq.c_tp_iop 060 4
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150 | unsigned char * tty.t_outq.c_buf_cpu 064 4
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151 | unsigned char * tty.t_outq.c_buf_iop 068 4
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152 | (*int)() tty.t_oproc_cpu 06c 4
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153 | (*int)() tty.t_oproc_iop 070 4
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154 | (*int)() tty.t_stopproc_cpu 074 4
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155 | (*int)() tty.t_stopproc_iop 078 4
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156 | struct thread * tty.t_rsel 07c 4
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157 |
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158 | etc.
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159 |
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160 |
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161 | Actually, this was generated by a particular set of options. You can control
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162 | the formatting of each column, whether you prefer wide or fat, hex or decimal,
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163 | leading zeroes or whatever.
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164 |
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165 | All you need to be able to use this is a C compiler than generates
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166 | BSD/GCC-style stabs. The B<-g> option on native BSD compilers and GCC
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167 | should get this for you.
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168 |
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169 | To learn more, just type a bogus option, like B<-\?>, and a long usage message
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170 | will be provided. There are a fair number of possibilities.
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171 |
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172 | If you're only a C programmer, than this is the end of the message for you.
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173 | You can quit right now, and if you care to, save off the source and run it
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174 | when you feel like it. Or not.
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175 |
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176 |
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177 |
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178 | But if you're a perl programmer, then for you I have something much more
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179 | wondrous than just a structure offset printer.
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180 |
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181 | You see, if you call pstruct by its other incybernation, c2ph, you have a code
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182 | generator that translates C code into perl code! Well, structure and union
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183 | declarations at least, but that's quite a bit.
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184 |
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185 | Prior to this point, anyone programming in perl who wanted to interact
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186 | with C programs, like the kernel, was forced to guess the layouts of
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187 | the C structures, and then hardwire these into his program. Of course,
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188 | when you took your wonderfully crafted program to a system where the
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189 | sgtty structure was laid out differently, your program broke. Which is
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190 | a shame.
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191 |
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192 | We've had Larry's h2ph translator, which helped, but that only works on
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193 | cpp symbols, not real C, which was also very much needed. What I offer
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194 | you is a symbolic way of getting at all the C structures. I've couched
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195 | them in terms of packages and functions. Consider the following program:
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196 |
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197 | #!/usr/local/bin/perl
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198 |
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199 | require 'syscall.ph';
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200 | require 'sys/time.ph';
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201 | require 'sys/resource.ph';
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202 |
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203 | $ru = "\0" x &rusage'sizeof();
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204 |
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205 | syscall(&SYS_getrusage, &RUSAGE_SELF, $ru) && die "getrusage: $!";
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206 |
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207 | @ru = unpack($t = &rusage'typedef(), $ru);
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208 |
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209 | $utime = $ru[ &rusage'ru_utime + &timeval'tv_sec ]
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210 | + ($ru[ &rusage'ru_utime + &timeval'tv_usec ]) / 1e6;
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211 |
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212 | $stime = $ru[ &rusage'ru_stime + &timeval'tv_sec ]
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213 | + ($ru[ &rusage'ru_stime + &timeval'tv_usec ]) / 1e6;
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214 |
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215 | printf "you have used %8.3fs+%8.3fu seconds.\n", $utime, $stime;
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216 |
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217 |
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218 | As you see, the name of the package is the name of the structure. Regular
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219 | fields are just their own names. Plus the following accessor functions are
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220 | provided for your convenience:
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221 |
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222 | struct This takes no arguments, and is merely the number of first-level
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223 | elements in the structure. You would use this for indexing
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224 | into arrays of structures, perhaps like this
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225 |
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226 |
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227 | $usec = $u[ &user'u_utimer
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228 | + (&ITIMER_VIRTUAL * &itimerval'struct)
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229 | + &itimerval'it_value
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230 | + &timeval'tv_usec
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231 | ];
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232 |
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233 | sizeof Returns the bytes in the structure, or the member if
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234 | you pass it an argument, such as
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235 |
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236 | &rusage'sizeof(&rusage'ru_utime)
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237 |
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238 | typedef This is the perl format definition for passing to pack and
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239 | unpack. If you ask for the typedef of a nothing, you get
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240 | the whole structure, otherwise you get that of the member
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241 | you ask for. Padding is taken care of, as is the magic to
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242 | guarantee that a union is unpacked into all its aliases.
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243 | Bitfields are not quite yet supported however.
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244 |
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245 | offsetof This function is the byte offset into the array of that
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246 | member. You may wish to use this for indexing directly
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247 | into the packed structure with vec() if you're too lazy
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248 | to unpack it.
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249 |
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250 | typeof Not to be confused with the typedef accessor function, this
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251 | one returns the C type of that field. This would allow
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252 | you to print out a nice structured pretty print of some
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253 | structure without knoning anything about it beforehand.
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254 | No args to this one is a noop. Someday I'll post such
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255 | a thing to dump out your u structure for you.
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256 |
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257 |
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258 | The way I see this being used is like basically this:
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259 |
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260 | % h2ph <some_include_file.h > /usr/lib/perl/tmp.ph
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261 | % c2ph some_include_file.h >> /usr/lib/perl/tmp.ph
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262 | % install
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263 |
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264 | It's a little tricker with c2ph because you have to get the includes right.
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265 | I can't know this for your system, but it's not usually too terribly difficult.
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266 |
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267 | The code isn't pretty as I mentioned -- I never thought it would be a 1000-
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268 | line program when I started, or I might not have begun. :-) But I would have
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269 | been less cavalier in how the parts of the program communicated with each
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270 | other, etc. It might also have helped if I didn't have to divine the makeup
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271 | of the stabs on the fly, and then account for micro differences between my
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272 | compiler and gcc.
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273 |
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274 | Anyway, here it is. Should run on perl v4 or greater. Maybe less.
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275 |
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276 |
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277 | --tom
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278 |
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279 | =cut
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280 |
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281 | $RCSID = '$Id: c2ph,v 1.7 95/10/28 10:41:47 tchrist Exp Locker: tchrist $';
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282 |
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283 | use File::Temp;
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284 |
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285 | ######################################################################
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286 |
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287 | # some handy data definitions. many of these can be reset later.
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288 |
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289 | $bitorder = 'b'; # ascending; set to B for descending bit fields
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290 |
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291 | %intrinsics =
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292 | %template = (
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293 | 'char', 'c',
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294 | 'unsigned char', 'C',
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295 | 'short', 's',
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296 | 'short int', 's',
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297 | 'unsigned short', 'S',
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298 | 'unsigned short int', 'S',
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299 | 'short unsigned int', 'S',
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300 | 'int', 'i',
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301 | 'unsigned int', 'I',
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302 | 'long', 'l',
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303 | 'long int', 'l',
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304 | 'unsigned long', 'L',
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305 | 'unsigned long', 'L',
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306 | 'long unsigned int', 'L',
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307 | 'unsigned long int', 'L',
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308 | 'long long', 'q',
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309 | 'long long int', 'q',
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310 | 'unsigned long long', 'Q',
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311 | 'unsigned long long int', 'Q',
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312 | 'float', 'f',
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313 | 'double', 'd',
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314 | 'pointer', 'p',
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315 | 'null', 'x',
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316 | 'neganull', 'X',
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317 | 'bit', $bitorder,
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318 | );
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319 |
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320 | &buildscrunchlist;
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321 | delete $intrinsics{'neganull'};
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322 | delete $intrinsics{'bit'};
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323 | delete $intrinsics{'null'};
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324 |
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325 | # use -s to recompute sizes
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326 | %sizeof = (
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327 | 'char', '1',
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328 | 'unsigned char', '1',
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329 | 'short', '2',
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330 | 'short int', '2',
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331 | 'unsigned short', '2',
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332 | 'unsigned short int', '2',
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333 | 'short unsigned int', '2',
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334 | 'int', '4',
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335 | 'unsigned int', '4',
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336 | 'long', '4',
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337 | 'long int', '4',
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338 | 'unsigned long', '4',
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339 | 'unsigned long int', '4',
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340 | 'long unsigned int', '4',
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341 | 'long long', '8',
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342 | 'long long int', '8',
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343 | 'unsigned long long', '8',
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344 | 'unsigned long long int', '8',
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345 | 'float', '4',
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346 | 'double', '8',
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347 | 'pointer', '4',
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348 | );
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349 |
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350 | ($type_width, $member_width, $offset_width, $size_width) = (20, 20, 6, 5);
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351 |
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352 | ($offset_fmt, $size_fmt) = ('d', 'd');
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353 |
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354 | $indent = 2;
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355 |
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356 | $CC = 'cc';
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357 | !NO!SUBS!
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358 |
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359 | if (($Config{gccversion} || '') =~ /^(\d+)\.(\d+)/
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360 | and ($1 > 3 or ($1 == 3 and $2 >= 2))) {
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361 | print OUT q/$CFLAGS = '-gstabs -S';/;
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362 | } else {
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363 | print OUT q/$CFLAGS = '-g -S';/;
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364 | }
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365 |
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366 | print OUT <<'!NO!SUBS!';
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367 |
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368 | $DEFINES = '';
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369 |
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370 | $perl++ if $0 =~ m#/?c2ph$#;
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371 |
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372 | require 'getopts.pl';
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373 |
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374 | use File::Temp 'tempdir';
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375 |
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376 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift;
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377 |
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378 | &Getopts('aixdpvtnws:') || &usage(0);
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379 |
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380 | $opt_d && $debug++;
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381 | $opt_t && $trace++;
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382 | $opt_p && $perl++;
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383 | $opt_v && $verbose++;
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384 | $opt_n && ($perl = 0);
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385 |
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386 | if ($opt_w) {
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387 | ($type_width, $member_width, $offset_width) = (45, 35, 8);
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388 | }
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389 | if ($opt_x) {
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390 | ($offset_fmt, $offset_width, $size_fmt, $size_width) = ( 'x', '08', 'x', 04 );
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391 | }
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392 |
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393 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift;
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394 |
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395 | sub PLUMBER {
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396 | select(STDERR);
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397 | print "oops, apperent pager foulup\n";
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398 | $isatty++;
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399 | &usage(1);
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400 | }
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401 |
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402 | sub usage {
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403 | local($oops) = @_;
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404 | unless (-t STDOUT) {
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405 | select(STDERR);
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406 | } elsif (!$oops) {
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407 | $isatty++;
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408 | $| = 1;
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409 | print "hit <RETURN> for further explanation: ";
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410 | <STDIN>;
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411 | open (PIPE, "|". ($ENV{PAGER} || 'more'));
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412 | $SIG{PIPE} = PLUMBER;
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413 | select(PIPE);
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414 | }
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415 |
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416 | print "usage: $0 [-dpnP] [var=val] [files ...]\n";
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417 |
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418 | exit unless $isatty;
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419 |
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420 | print <<EOF;
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421 |
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422 | Options:
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423 |
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424 | -w wide; short for: type_width=45 member_width=35 offset_width=8
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425 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04
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426 |
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427 | -n do not generate perl code (default when invoked as pstruct)
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428 | -p generate perl code (default when invoked as c2ph)
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429 | -v generate perl code, with C decls as comments
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430 |
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431 | -i do NOT recompute sizes for intrinsic datatypes
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432 | -a dump information on intrinsics also
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433 |
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434 | -t trace execution
|
---|
435 | -d spew reams of debugging output
|
---|
436 |
|
---|
437 | -slist give comma-separated list a structures to dump
|
---|
438 |
|
---|
439 |
|
---|
440 | Var Name Default Value Meaning
|
---|
441 |
|
---|
442 | EOF
|
---|
443 |
|
---|
444 | &defvar('CC', 'which_compiler to call');
|
---|
445 | &defvar('CFLAGS', 'how to generate *.s files with stabs');
|
---|
446 | &defvar('DEFINES','any extra cflags or cpp defines, like -I, -D, -U');
|
---|
447 |
|
---|
448 | print "\n";
|
---|
449 |
|
---|
450 | &defvar('type_width', 'width of type field (column 1)');
|
---|
451 | &defvar('member_width', 'width of member field (column 2)');
|
---|
452 | &defvar('offset_width', 'width of offset field (column 3)');
|
---|
453 | &defvar('size_width', 'width of size field (column 4)');
|
---|
454 |
|
---|
455 | print "\n";
|
---|
456 |
|
---|
457 | &defvar('offset_fmt', 'sprintf format type for offset');
|
---|
458 | &defvar('size_fmt', 'sprintf format type for size');
|
---|
459 |
|
---|
460 | print "\n";
|
---|
461 |
|
---|
462 | &defvar('indent', 'how far to indent each nesting level');
|
---|
463 |
|
---|
464 | print <<'EOF';
|
---|
465 |
|
---|
466 | If any *.[ch] files are given, these will be catted together into
|
---|
467 | a temporary *.c file and sent through:
|
---|
468 | $CC $CFLAGS $DEFINES
|
---|
469 | and the resulting *.s groped for stab information. If no files are
|
---|
470 | supplied, then stdin is read directly with the assumption that it
|
---|
471 | contains stab information. All other lines will be ignored. At
|
---|
472 | most one *.s file should be supplied.
|
---|
473 |
|
---|
474 | EOF
|
---|
475 | close PIPE;
|
---|
476 | exit 1;
|
---|
477 | }
|
---|
478 |
|
---|
479 | sub defvar {
|
---|
480 | local($var, $msg) = @_;
|
---|
481 | printf "%-16s%-15s %s\n", $var, eval "\$$var", $msg;
|
---|
482 | }
|
---|
483 |
|
---|
484 | sub safedir {
|
---|
485 | $SAFEDIR = File::Temp::tempdir("c2ph.XXXXXX", TMPDIR => 1, CLEANUP => 1)
|
---|
486 | unless (defined($SAFEDIR));
|
---|
487 | }
|
---|
488 |
|
---|
489 | undef $SAFEDIR;
|
---|
490 |
|
---|
491 | $recurse = 1;
|
---|
492 |
|
---|
493 | if (@ARGV) {
|
---|
494 | if (grep(!/\.[csh]$/,@ARGV)) {
|
---|
495 | warn "Only *.[csh] files expected!\n";
|
---|
496 | &usage;
|
---|
497 | }
|
---|
498 | elsif (grep(/\.s$/,@ARGV)) {
|
---|
499 | if (@ARGV > 1) {
|
---|
500 | warn "Only one *.s file allowed!\n";
|
---|
501 | &usage;
|
---|
502 | }
|
---|
503 | }
|
---|
504 | elsif (@ARGV == 1 && $ARGV[0] =~ /\.c$/) {
|
---|
505 | local($dir, $file) = $ARGV[0] =~ m#(.*/)?(.*)$#;
|
---|
506 | $chdir = "cd $dir && " if $dir;
|
---|
507 | &system("$chdir$CC $CFLAGS $DEFINES $file") && exit 1;
|
---|
508 | $ARGV[0] =~ s/\.c$/.s/;
|
---|
509 | }
|
---|
510 | else {
|
---|
511 | &safedir;
|
---|
512 | $TMP = "$SAFEDIR/c2ph.$$.c";
|
---|
513 | &system("cat @ARGV > $TMP") && exit 1;
|
---|
514 | &system("cd $SAFEDIR && $CC $CFLAGS $DEFINES $TMP") && exit 1;
|
---|
515 | unlink $TMP;
|
---|
516 | $TMP =~ s/\.c$/.s/;
|
---|
517 | @ARGV = ($TMP);
|
---|
518 | }
|
---|
519 | }
|
---|
520 |
|
---|
521 | if ($opt_s) {
|
---|
522 | for (split(/[\s,]+/, $opt_s)) {
|
---|
523 | $interested{$_}++;
|
---|
524 | }
|
---|
525 | }
|
---|
526 |
|
---|
527 |
|
---|
528 | $| = 1 if $debug;
|
---|
529 |
|
---|
530 | main: {
|
---|
531 |
|
---|
532 | if ($trace) {
|
---|
533 | if (-t && !@ARGV) {
|
---|
534 | print STDERR "reading from your keyboard: ";
|
---|
535 | } else {
|
---|
536 | print STDERR "reading from " . (@ARGV ? "@ARGV" : "<STDIN>").": ";
|
---|
537 | }
|
---|
538 | }
|
---|
539 |
|
---|
540 | STAB: while (<>) {
|
---|
541 | if ($trace && !($. % 10)) {
|
---|
542 | $lineno = $..'';
|
---|
543 | print STDERR $lineno, "\b" x length($lineno);
|
---|
544 | }
|
---|
545 | next unless /^\s*\.stabs\s+/;
|
---|
546 | $line = $_;
|
---|
547 | s/^\s*\.stabs\s+//;
|
---|
548 | if (s/\\\\"[d,]+$//) {
|
---|
549 | $saveline .= $line;
|
---|
550 | $savebar = $_;
|
---|
551 | next STAB;
|
---|
552 | }
|
---|
553 | if ($saveline) {
|
---|
554 | s/^"//;
|
---|
555 | $_ = $savebar . $_;
|
---|
556 | $line = $saveline;
|
---|
557 | }
|
---|
558 | &stab;
|
---|
559 | $savebar = $saveline = undef;
|
---|
560 | }
|
---|
561 | print STDERR "$.\n" if $trace;
|
---|
562 | unlink $TMP if $TMP;
|
---|
563 |
|
---|
564 | &compute_intrinsics if $perl && !$opt_i;
|
---|
565 |
|
---|
566 | print STDERR "resolving types\n" if $trace;
|
---|
567 |
|
---|
568 | &resolve_types;
|
---|
569 | &adjust_start_addrs;
|
---|
570 |
|
---|
571 | $sum = 2 + $type_width + $member_width;
|
---|
572 | $pmask1 = "%-${type_width}s %-${member_width}s";
|
---|
573 | $pmask2 = "%-${sum}s %${offset_width}${offset_fmt}%s %${size_width}${size_fmt}%s";
|
---|
574 |
|
---|
575 |
|
---|
576 |
|
---|
577 | if ($perl) {
|
---|
578 | # resolve template -- should be in stab define order, but even this isn't enough.
|
---|
579 | print STDERR "\nbuilding type templates: " if $trace;
|
---|
580 | for $i (reverse 0..$#type) {
|
---|
581 | next unless defined($name = $type[$i]);
|
---|
582 | next unless defined $struct{$name};
|
---|
583 | ($iname = $name) =~ s/\..*//;
|
---|
584 | $build_recursed = 0;
|
---|
585 | &build_template($name) unless defined $template{&psou($name)} ||
|
---|
586 | $opt_s && !$interested{$iname};
|
---|
587 | }
|
---|
588 | print STDERR "\n\n" if $trace;
|
---|
589 | }
|
---|
590 |
|
---|
591 | print STDERR "dumping structs: " if $trace;
|
---|
592 |
|
---|
593 | local($iam);
|
---|
594 |
|
---|
595 |
|
---|
596 |
|
---|
597 | foreach $name (sort keys %struct) {
|
---|
598 | ($iname = $name) =~ s/\..*//;
|
---|
599 | next if $opt_s && !$interested{$iname};
|
---|
600 | print STDERR "$name " if $trace;
|
---|
601 |
|
---|
602 | undef @sizeof;
|
---|
603 | undef @typedef;
|
---|
604 | undef @offsetof;
|
---|
605 | undef @indices;
|
---|
606 | undef @typeof;
|
---|
607 | undef @fieldnames;
|
---|
608 |
|
---|
609 | $mname = &munge($name);
|
---|
610 |
|
---|
611 | $fname = &psou($name);
|
---|
612 |
|
---|
613 | print "# " if $perl && $verbose;
|
---|
614 | $pcode = '';
|
---|
615 | print "$fname {\n" if !$perl || $verbose;
|
---|
616 | $template{$fname} = &scrunch($template{$fname}) if $perl;
|
---|
617 | &pstruct($name,$name,0);
|
---|
618 | print "# " if $perl && $verbose;
|
---|
619 | print "}\n" if !$perl || $verbose;
|
---|
620 | print "\n" if $perl && $verbose;
|
---|
621 |
|
---|
622 | if ($perl) {
|
---|
623 | print "$pcode";
|
---|
624 |
|
---|
625 | printf("\nsub %-32s { %4d; }\n\n", "${mname}'struct", $countof{$name});
|
---|
626 |
|
---|
627 | print <<EOF;
|
---|
628 | sub ${mname}'typedef {
|
---|
629 | local(\$${mname}'index) = shift;
|
---|
630 | defined \$${mname}'index
|
---|
631 | ? \$${mname}'typedef[\$${mname}'index]
|
---|
632 | : \$${mname}'typedef;
|
---|
633 | }
|
---|
634 | EOF
|
---|
635 |
|
---|
636 | print <<EOF;
|
---|
637 | sub ${mname}'sizeof {
|
---|
638 | local(\$${mname}'index) = shift;
|
---|
639 | defined \$${mname}'index
|
---|
640 | ? \$${mname}'sizeof[\$${mname}'index]
|
---|
641 | : \$${mname}'sizeof;
|
---|
642 | }
|
---|
643 | EOF
|
---|
644 |
|
---|
645 | print <<EOF;
|
---|
646 | sub ${mname}'offsetof {
|
---|
647 | local(\$${mname}'index) = shift;
|
---|
648 | defined \$${mname}index
|
---|
649 | ? \$${mname}'offsetof[\$${mname}'index]
|
---|
650 | : \$${mname}'sizeof;
|
---|
651 | }
|
---|
652 | EOF
|
---|
653 |
|
---|
654 | print <<EOF;
|
---|
655 | sub ${mname}'typeof {
|
---|
656 | local(\$${mname}'index) = shift;
|
---|
657 | defined \$${mname}index
|
---|
658 | ? \$${mname}'typeof[\$${mname}'index]
|
---|
659 | : '$name';
|
---|
660 | }
|
---|
661 | EOF
|
---|
662 |
|
---|
663 | print <<EOF;
|
---|
664 | sub ${mname}'fieldnames {
|
---|
665 | \@${mname}'fieldnames;
|
---|
666 | }
|
---|
667 | EOF
|
---|
668 |
|
---|
669 | $iam = ($isastruct{$name} && 's') || ($isaunion{$name} && 'u');
|
---|
670 |
|
---|
671 | print <<EOF;
|
---|
672 | sub ${mname}'isastruct {
|
---|
673 | '$iam';
|
---|
674 | }
|
---|
675 | EOF
|
---|
676 |
|
---|
677 | print "\$${mname}'typedef = '" . &scrunch($template{$fname})
|
---|
678 | . "';\n";
|
---|
679 |
|
---|
680 | print "\$${mname}'sizeof = $sizeof{$name};\n\n";
|
---|
681 |
|
---|
682 |
|
---|
683 | print "\@${mname}'indices = (", &squishseq(@indices), ");\n";
|
---|
684 |
|
---|
685 | print "\n";
|
---|
686 |
|
---|
687 | print "\@${mname}'typedef[\@${mname}'indices] = (",
|
---|
688 | join("\n\t", '', @typedef), "\n );\n\n";
|
---|
689 | print "\@${mname}'sizeof[\@${mname}'indices] = (",
|
---|
690 | join("\n\t", '', @sizeof), "\n );\n\n";
|
---|
691 | print "\@${mname}'offsetof[\@${mname}'indices] = (",
|
---|
692 | join("\n\t", '', @offsetof), "\n );\n\n";
|
---|
693 | print "\@${mname}'typeof[\@${mname}'indices] = (",
|
---|
694 | join("\n\t", '', @typeof), "\n );\n\n";
|
---|
695 | print "\@${mname}'fieldnames[\@${mname}'indices] = (",
|
---|
696 | join("\n\t", '', @fieldnames), "\n );\n\n";
|
---|
697 |
|
---|
698 | $template_printed{$fname}++;
|
---|
699 | $size_printed{$fname}++;
|
---|
700 | }
|
---|
701 | print "\n";
|
---|
702 | }
|
---|
703 |
|
---|
704 | print STDERR "\n" if $trace;
|
---|
705 |
|
---|
706 | unless ($perl && $opt_a) {
|
---|
707 | print "\n1;\n" if $perl;
|
---|
708 | exit;
|
---|
709 | }
|
---|
710 |
|
---|
711 |
|
---|
712 |
|
---|
713 | foreach $name (sort bysizevalue keys %intrinsics) {
|
---|
714 | next if $size_printed{$name};
|
---|
715 | print '$',&munge($name),"'sizeof = ", $sizeof{$name}, ";\n";
|
---|
716 | }
|
---|
717 |
|
---|
718 | print "\n";
|
---|
719 |
|
---|
720 | sub bysizevalue { $sizeof{$a} <=> $sizeof{$b}; }
|
---|
721 |
|
---|
722 |
|
---|
723 | foreach $name (sort keys %intrinsics) {
|
---|
724 | print '$',&munge($name),"'typedef = '", $template{$name}, "';\n";
|
---|
725 | }
|
---|
726 |
|
---|
727 | print "\n1;\n" if $perl;
|
---|
728 |
|
---|
729 | exit;
|
---|
730 | }
|
---|
731 |
|
---|
732 | ########################################################################################
|
---|
733 |
|
---|
734 |
|
---|
735 | sub stab {
|
---|
736 | next unless $continued || /:[\$\w]+(\(\d+,\d+\))?=[\*\$\w]+/; # (\d+,\d+) is for sun
|
---|
737 | s/"// || next;
|
---|
738 | s/",([x\d]+),([x\d]+),([x\d]+),.*// || next;
|
---|
739 |
|
---|
740 | next if /^\s*$/;
|
---|
741 |
|
---|
742 | $size = $3 if $3;
|
---|
743 | $_ = $continued . $_ if length($continued);
|
---|
744 | if (s/\\\\$//) {
|
---|
745 | # if last 2 chars of string are '\\' then stab is continued
|
---|
746 | # in next stab entry
|
---|
747 | chop;
|
---|
748 | $continued = $_;
|
---|
749 | next;
|
---|
750 | }
|
---|
751 | $continued = '';
|
---|
752 |
|
---|
753 |
|
---|
754 | $line = $_;
|
---|
755 |
|
---|
756 | if (($name, $pdecl) = /^([\$ \w]+):[tT]((\d+)(=[rufs*](\d+))+)$/) {
|
---|
757 | print "$name is a typedef for some funky pointers: $pdecl\n" if $debug;
|
---|
758 | &pdecl($pdecl);
|
---|
759 | next;
|
---|
760 | }
|
---|
761 |
|
---|
762 |
|
---|
763 |
|
---|
764 | if (/(([ \w]+):t(\d+|\(\d+,\d+\)))=r?(\d+|\(\d+,\d+\))(;\d+;\d+;)?/) {
|
---|
765 | local($ident) = $2;
|
---|
766 | push(@intrinsics, $ident);
|
---|
767 | $typeno = &typeno($3);
|
---|
768 | $type[$typeno] = $ident;
|
---|
769 | print STDERR "intrinsic $ident in new type $typeno\n" if $debug;
|
---|
770 | next;
|
---|
771 | }
|
---|
772 |
|
---|
773 | if (($name, $typeordef, $typeno, $extra, $struct, $_)
|
---|
774 | = /^([\$ \w]+):([ustT])(\d+|\(\d+,\d+\))(=[rufs*](\d+))?(.*)$/)
|
---|
775 | {
|
---|
776 | $typeno = &typeno($typeno); # sun foolery
|
---|
777 | }
|
---|
778 | elsif (/^[\$\w]+:/) {
|
---|
779 | next; # variable
|
---|
780 | }
|
---|
781 | else {
|
---|
782 | warn "can't grok stab: <$_> in: $line " if $_;
|
---|
783 | next;
|
---|
784 | }
|
---|
785 |
|
---|
786 | #warn "got size $size for $name\n";
|
---|
787 | $sizeof{$name} = $size if $size;
|
---|
788 |
|
---|
789 | s/;[-\d]*;[-\d]*;$//; # we don't care about ranges
|
---|
790 |
|
---|
791 | $typenos{$name} = $typeno;
|
---|
792 |
|
---|
793 | unless (defined $type[$typeno]) {
|
---|
794 | &panic("type 0??") unless $typeno;
|
---|
795 | $type[$typeno] = $name unless defined $type[$typeno];
|
---|
796 | printf "new type $typeno is $name" if $debug;
|
---|
797 | if ($extra =~ /\*/ && defined $type[$struct]) {
|
---|
798 | print ", a typedef for a pointer to " , $type[$struct] if $debug;
|
---|
799 | }
|
---|
800 | } else {
|
---|
801 | printf "%s is type %d", $name, $typeno if $debug;
|
---|
802 | print ", a typedef for " , $type[$typeno] if $debug;
|
---|
803 | }
|
---|
804 | print "\n" if $debug;
|
---|
805 | #next unless $extra =~ /[su*]/;
|
---|
806 |
|
---|
807 | #$type[$struct] = $name;
|
---|
808 |
|
---|
809 | if ($extra =~ /[us*]/) {
|
---|
810 | &sou($name, $extra);
|
---|
811 | $_ = &sdecl($name, $_, 0);
|
---|
812 | }
|
---|
813 | elsif (/^=ar/) {
|
---|
814 | print "it's a bare array typedef -- that's pretty sick\n" if $debug;
|
---|
815 | $_ = "$typeno$_";
|
---|
816 | $scripts = '';
|
---|
817 | $_ = &adecl($_,1);
|
---|
818 |
|
---|
819 | }
|
---|
820 | elsif (s/((\w+):t(\d+|\(\d+,\d+\)))?=r?(;\d+;\d+;)?//) { # the ?'s are for gcc
|
---|
821 | push(@intrinsics, $2);
|
---|
822 | $typeno = &typeno($3);
|
---|
823 | $type[$typeno] = $2;
|
---|
824 | print STDERR "intrinsic $2 in new type $typeno\n" if $debug;
|
---|
825 | }
|
---|
826 | elsif (s/^=e//) { # blessed be thy compiler; mine won't do this
|
---|
827 | &edecl;
|
---|
828 | }
|
---|
829 | else {
|
---|
830 | warn "Funny remainder for $name on line $_ left in $line " if $_;
|
---|
831 | }
|
---|
832 | }
|
---|
833 |
|
---|
834 | sub typeno { # sun thinks types are (0,27) instead of just 27
|
---|
835 | local($_) = @_;
|
---|
836 | s/\(\d+,(\d+)\)/$1/;
|
---|
837 | $_;
|
---|
838 | }
|
---|
839 |
|
---|
840 | sub pstruct {
|
---|
841 | local($what,$prefix,$base) = @_;
|
---|
842 | local($field, $fieldname, $typeno, $count, $offset, $entry);
|
---|
843 | local($fieldtype);
|
---|
844 | local($type, $tname);
|
---|
845 | local($mytype, $mycount, $entry2);
|
---|
846 | local($struct_count) = 0;
|
---|
847 | local($pad, $revpad, $length, $prepad, $lastoffset, $lastlength, $fmt);
|
---|
848 | local($bits,$bytes);
|
---|
849 | local($template);
|
---|
850 |
|
---|
851 |
|
---|
852 | local($mname) = &munge($name);
|
---|
853 |
|
---|
854 | sub munge {
|
---|
855 | local($_) = @_;
|
---|
856 | s/[\s\$\.]/_/g;
|
---|
857 | $_;
|
---|
858 | }
|
---|
859 |
|
---|
860 | local($sname) = &psou($what);
|
---|
861 |
|
---|
862 | $nesting++;
|
---|
863 |
|
---|
864 | for $field (split(/;/, $struct{$what})) {
|
---|
865 | $pad = $prepad = 0;
|
---|
866 | $entry = '';
|
---|
867 | ($fieldname, $typeno, $count, $offset, $length) = split(/,/, $field);
|
---|
868 |
|
---|
869 | $type = $type[$typeno];
|
---|
870 |
|
---|
871 | $type =~ /([^[]*)(\[.*\])?/;
|
---|
872 | $mytype = $1;
|
---|
873 | $count .= $2;
|
---|
874 | $fieldtype = &psou($mytype);
|
---|
875 |
|
---|
876 | local($fname) = &psou($name);
|
---|
877 |
|
---|
878 | if ($build_templates) {
|
---|
879 |
|
---|
880 | $pad = ($offset - ($lastoffset + $lastlength))/8
|
---|
881 | if defined $lastoffset;
|
---|
882 |
|
---|
883 | if (! $finished_template{$sname}) {
|
---|
884 | if ($isaunion{$what}) {
|
---|
885 | $template{$sname} .= 'X' x $revpad . ' ' if $revpad;
|
---|
886 | } else {
|
---|
887 | $template{$sname} .= 'x' x $pad . ' ' if $pad;
|
---|
888 | }
|
---|
889 | }
|
---|
890 |
|
---|
891 | $template = &fetch_template($type);
|
---|
892 | &repeat_template($template,$count);
|
---|
893 |
|
---|
894 | if (! $finished_template{$sname}) {
|
---|
895 | $template{$sname} .= $template;
|
---|
896 | }
|
---|
897 |
|
---|
898 | $revpad = $length/8 if $isaunion{$what};
|
---|
899 |
|
---|
900 | ($lastoffset, $lastlength) = ($offset, $length);
|
---|
901 |
|
---|
902 | } else {
|
---|
903 | print '# ' if $perl && $verbose;
|
---|
904 | $entry = sprintf($pmask1,
|
---|
905 | ' ' x ($nesting * $indent) . $fieldtype,
|
---|
906 | "$prefix.$fieldname" . $count);
|
---|
907 |
|
---|
908 | $entry =~ s/(\*+)( )/$2$1/;
|
---|
909 |
|
---|
910 | printf $pmask2,
|
---|
911 | $entry,
|
---|
912 | ($base+$offset)/8,
|
---|
913 | ($bits = ($base+$offset)%8) ? ".$bits" : " ",
|
---|
914 | $length/8,
|
---|
915 | ($bits = $length % 8) ? ".$bits": ""
|
---|
916 | if !$perl || $verbose;
|
---|
917 |
|
---|
918 | if ($perl) {
|
---|
919 | $template = &fetch_template($type);
|
---|
920 | &repeat_template($template,$count);
|
---|
921 | }
|
---|
922 |
|
---|
923 | if ($perl && $nesting == 1) {
|
---|
924 |
|
---|
925 | push(@sizeof, int($length/8) .",\t# $fieldname");
|
---|
926 | push(@offsetof, int($offset/8) .",\t# $fieldname");
|
---|
927 | local($little) = &scrunch($template);
|
---|
928 | push(@typedef, "'$little', \t# $fieldname");
|
---|
929 | $type =~ s/(struct|union) //;
|
---|
930 | push(@typeof, "'$mytype" . ($count ? $count : '') .
|
---|
931 | "',\t# $fieldname");
|
---|
932 | push(@fieldnames, "'$fieldname',");
|
---|
933 | }
|
---|
934 |
|
---|
935 | print ' ', ' ' x $indent x $nesting, $template
|
---|
936 | if $perl && $verbose;
|
---|
937 |
|
---|
938 | print "\n" if !$perl || $verbose;
|
---|
939 |
|
---|
940 | }
|
---|
941 | if ($perl) {
|
---|
942 | local($mycount) = defined $struct{$mytype} ? $countof{$mytype} : 1;
|
---|
943 | $mycount *= &scripts2count($count) if $count;
|
---|
944 | if ($nesting==1 && !$build_templates) {
|
---|
945 | $pcode .= sprintf("sub %-32s { %4d; }\n",
|
---|
946 | "${mname}'${fieldname}", $struct_count);
|
---|
947 | push(@indices, $struct_count);
|
---|
948 | }
|
---|
949 | $struct_count += $mycount;
|
---|
950 | }
|
---|
951 |
|
---|
952 |
|
---|
953 | &pstruct($type, "$prefix.$fieldname", $base+$offset)
|
---|
954 | if $recurse && defined $struct{$type};
|
---|
955 | }
|
---|
956 |
|
---|
957 | $countof{$what} = $struct_count unless defined $countof{$whati};
|
---|
958 |
|
---|
959 | $template{$sname} .= '$' if $build_templates;
|
---|
960 | $finished_template{$sname}++;
|
---|
961 |
|
---|
962 | if ($build_templates && !defined $sizeof{$name}) {
|
---|
963 | local($fmt) = &scrunch($template{$sname});
|
---|
964 | print STDERR "no size for $name, punting with $fmt..." if $debug;
|
---|
965 | eval '$sizeof{$name} = length(pack($fmt, ()))';
|
---|
966 | if ($@) {
|
---|
967 | chop $@;
|
---|
968 | warn "couldn't get size for \$name: $@";
|
---|
969 | } else {
|
---|
970 | print STDERR $sizeof{$name}, "\n" if $debUg;
|
---|
971 | }
|
---|
972 | }
|
---|
973 |
|
---|
974 | --$nesting;
|
---|
975 | }
|
---|
976 |
|
---|
977 |
|
---|
978 | sub psize {
|
---|
979 | local($me) = @_;
|
---|
980 | local($amstruct) = $struct{$me} ? 'struct ' : '';
|
---|
981 |
|
---|
982 | print '$sizeof{\'', $amstruct, $me, '\'} = ';
|
---|
983 | printf "%d;\n", $sizeof{$me};
|
---|
984 | }
|
---|
985 |
|
---|
986 | sub pdecl {
|
---|
987 | local($pdecl) = @_;
|
---|
988 | local(@pdecls);
|
---|
989 | local($tname);
|
---|
990 |
|
---|
991 | warn "pdecl: $pdecl\n" if $debug;
|
---|
992 |
|
---|
993 | $pdecl =~ s/\(\d+,(\d+)\)/$1/g;
|
---|
994 | $pdecl =~ s/\*//g;
|
---|
995 | @pdecls = split(/=/, $pdecl);
|
---|
996 | $typeno = $pdecls[0];
|
---|
997 | $tname = pop @pdecls;
|
---|
998 |
|
---|
999 | if ($tname =~ s/^f//) { $tname = "$tname&"; }
|
---|
1000 | #else { $tname = "$tname*"; }
|
---|
1001 |
|
---|
1002 | for (reverse @pdecls) {
|
---|
1003 | $tname .= s/^f// ? "&" : "*";
|
---|
1004 | #$tname =~ s/^f(.*)/$1&/;
|
---|
1005 | print "type[$_] is $tname\n" if $debug;
|
---|
1006 | $type[$_] = $tname unless defined $type[$_];
|
---|
1007 | }
|
---|
1008 | }
|
---|
1009 |
|
---|
1010 |
|
---|
1011 |
|
---|
1012 | sub adecl {
|
---|
1013 | ($arraytype, $unknown, $lower, $upper) = ();
|
---|
1014 | #local($typeno);
|
---|
1015 | # global $typeno, @type
|
---|
1016 | local($_, $typedef) = @_;
|
---|
1017 |
|
---|
1018 | while (s/^((\d+|\(\d+,\d+\))=)?ar(\d+|\(\d+,\d+\));//) {
|
---|
1019 | ($arraytype, $unknown) = ($2, $3);
|
---|
1020 | $arraytype = &typeno($arraytype);
|
---|
1021 | $unknown = &typeno($unknown);
|
---|
1022 | if (s/^(\d+);(\d+);//) {
|
---|
1023 | ($lower, $upper) = ($1, $2);
|
---|
1024 | $scripts .= '[' . ($upper+1) . ']';
|
---|
1025 | } else {
|
---|
1026 | warn "can't find array bounds: $_";
|
---|
1027 | }
|
---|
1028 | }
|
---|
1029 | if (s/^([(,)\d*f=]*),(\d+),(\d+);//) {
|
---|
1030 | ($start, $length) = ($2, $3);
|
---|
1031 | $whatis = $1;
|
---|
1032 | if ($whatis =~ /^(\d+|\(\d+,\d+\))=/) {
|
---|
1033 | $typeno = &typeno($1);
|
---|
1034 | &pdecl($whatis);
|
---|
1035 | } else {
|
---|
1036 | $typeno = &typeno($whatis);
|
---|
1037 | }
|
---|
1038 | } elsif (s/^(\d+)(=[*suf]\d*)//) {
|
---|
1039 | local($whatis) = $2;
|
---|
1040 |
|
---|
1041 | if ($whatis =~ /[f*]/) {
|
---|
1042 | &pdecl($whatis);
|
---|
1043 | } elsif ($whatis =~ /[su]/) { #
|
---|
1044 | print "$prefix.$fieldname is an array$scripts anon structs; disgusting\n"
|
---|
1045 | if $debug;
|
---|
1046 | #$type[$typeno] = $name unless defined $type[$typeno];
|
---|
1047 | ##printf "new type $typeno is $name" if $debug;
|
---|
1048 | $typeno = $1;
|
---|
1049 | $type[$typeno] = "$prefix.$fieldname";
|
---|
1050 | local($name) = $type[$typeno];
|
---|
1051 | &sou($name, $whatis);
|
---|
1052 | $_ = &sdecl($name, $_, $start+$offset);
|
---|
1053 | 1;
|
---|
1054 | $start = $start{$name};
|
---|
1055 | $offset = $sizeof{$name};
|
---|
1056 | $length = $offset;
|
---|
1057 | } else {
|
---|
1058 | warn "what's this? $whatis in $line ";
|
---|
1059 | }
|
---|
1060 | } elsif (/^\d+$/) {
|
---|
1061 | $typeno = $_;
|
---|
1062 | } else {
|
---|
1063 | warn "bad array stab: $_ in $line ";
|
---|
1064 | next STAB;
|
---|
1065 | }
|
---|
1066 | #local($wasdef) = defined($type[$typeno]) && $debug;
|
---|
1067 | #if ($typedef) {
|
---|
1068 | #print "redefining $type[$typeno] to " if $wasdef;
|
---|
1069 | #$type[$typeno] = "$whatis$scripts"; # unless defined $type[$typeno];
|
---|
1070 | #print "$type[$typeno]\n" if $wasdef;
|
---|
1071 | #} else {
|
---|
1072 | #$type[$arraytype] = $type[$typeno] unless defined $type[$arraytype];
|
---|
1073 | #}
|
---|
1074 | $type[$arraytype] = "$type[$typeno]$scripts" if defined $type[$typeno];
|
---|
1075 | print "type[$arraytype] is $type[$arraytype]\n" if $debug;
|
---|
1076 | print "$prefix.$fieldname is an array of $type[$arraytype]\n" if $debug;
|
---|
1077 | $_;
|
---|
1078 | }
|
---|
1079 |
|
---|
1080 |
|
---|
1081 |
|
---|
1082 | sub sdecl {
|
---|
1083 | local($prefix, $_, $offset) = @_;
|
---|
1084 |
|
---|
1085 | local($fieldname, $scripts, $type, $arraytype, $unknown,
|
---|
1086 | $whatis, $pdecl, $upper,$lower, $start,$length) = ();
|
---|
1087 | local($typeno,$sou);
|
---|
1088 |
|
---|
1089 |
|
---|
1090 | SFIELD:
|
---|
1091 | while (/^([^;]+);/) {
|
---|
1092 | $scripts = '';
|
---|
1093 | warn "sdecl $_\n" if $debug;
|
---|
1094 | if (s/^([\$\w]+)://) {
|
---|
1095 | $fieldname = $1;
|
---|
1096 | } elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { #
|
---|
1097 | $typeno = &typeno($1);
|
---|
1098 | $type[$typeno] = "$prefix.$fieldname";
|
---|
1099 | local($name) = "$prefix.$fieldname";
|
---|
1100 | &sou($name,$2);
|
---|
1101 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset);
|
---|
1102 | $start = $start{$name};
|
---|
1103 | $offset += $sizeof{$name};
|
---|
1104 | #print "done with anon, start is $start, offset is $offset\n";
|
---|
1105 | #next SFIELD;
|
---|
1106 | } else {
|
---|
1107 | warn "weird field $_ of $line" if $debug;
|
---|
1108 | next STAB;
|
---|
1109 | #$fieldname = &gensym;
|
---|
1110 | #$_ = &sdecl("$prefix.$fieldname", $_, $start+$offset);
|
---|
1111 | }
|
---|
1112 |
|
---|
1113 | if (/^(\d+|\(\d+,\d+\))=ar/) {
|
---|
1114 | $_ = &adecl($_);
|
---|
1115 | }
|
---|
1116 | elsif (s/^(\d+|\(\d+,\d+\))?,(\d+),(\d+);//) {
|
---|
1117 | ($start, $length) = ($2, $3);
|
---|
1118 | &panic("no length?") unless $length;
|
---|
1119 | $typeno = &typeno($1) if $1;
|
---|
1120 | }
|
---|
1121 | elsif (s/^(\d+)=xs\w+:,(\d+),(\d+);//) {
|
---|
1122 | ($start, $length) = ($2, $3);
|
---|
1123 | &panic("no length?") unless $length;
|
---|
1124 | $typeno = &typeno($1) if $1;
|
---|
1125 | }
|
---|
1126 | elsif (s/^((\d+|\(\d+,\d+\))(=[*f](\d+|\(\d+,\d+\)))+),(\d+),(\d+);//) {
|
---|
1127 | ($pdecl, $start, $length) = ($1,$5,$6);
|
---|
1128 | &pdecl($pdecl);
|
---|
1129 | }
|
---|
1130 | elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # the dratted anon struct
|
---|
1131 | ($typeno, $sou) = ($1, $2);
|
---|
1132 | $typeno = &typeno($typeno);
|
---|
1133 | if (defined($type[$typeno])) {
|
---|
1134 | warn "now how did we get type $1 in $fieldname of $line?";
|
---|
1135 | } else {
|
---|
1136 | print "anon type $typeno is $prefix.$fieldname\n" if $debug;
|
---|
1137 | $type[$typeno] = "$prefix.$fieldname" unless defined $type[$typeno];
|
---|
1138 | };
|
---|
1139 | local($name) = "$prefix.$fieldname";
|
---|
1140 | &sou($name,$sou);
|
---|
1141 | print "anon ".($isastruct{$name}) ? "struct":"union"." for $prefix.$fieldname\n" if $debug;
|
---|
1142 | $type[$typeno] = "$prefix.$fieldname";
|
---|
1143 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset);
|
---|
1144 | $start = $start{$name};
|
---|
1145 | $length = $sizeof{$name};
|
---|
1146 | }
|
---|
1147 | else {
|
---|
1148 | warn "can't grok stab for $name ($_) in line $line ";
|
---|
1149 | next STAB;
|
---|
1150 | }
|
---|
1151 |
|
---|
1152 | &panic("no length for $prefix.$fieldname") unless $length;
|
---|
1153 | $struct{$name} .= join(',', $fieldname, $typeno, $scripts, $start, $length) . ';';
|
---|
1154 | }
|
---|
1155 | if (s/;\d*,(\d+),(\d+);//) {
|
---|
1156 | local($start, $size) = ($1, $2);
|
---|
1157 | $sizeof{$prefix} = $size;
|
---|
1158 | print "start of $prefix is $start, size of $sizeof{$prefix}\n" if $debug;
|
---|
1159 | $start{$prefix} = $start;
|
---|
1160 | }
|
---|
1161 | $_;
|
---|
1162 | }
|
---|
1163 |
|
---|
1164 | sub edecl {
|
---|
1165 | s/;$//;
|
---|
1166 | $enum{$name} = $_;
|
---|
1167 | $_ = '';
|
---|
1168 | }
|
---|
1169 |
|
---|
1170 | sub resolve_types {
|
---|
1171 | local($sou);
|
---|
1172 | for $i (0 .. $#type) {
|
---|
1173 | next unless defined $type[$i];
|
---|
1174 | $_ = $type[$i];
|
---|
1175 | unless (/\d/) {
|
---|
1176 | print "type[$i] $type[$i]\n" if $debug;
|
---|
1177 | next;
|
---|
1178 | }
|
---|
1179 | print "type[$i] $_ ==> " if $debug;
|
---|
1180 | s/^(\d+)(\**)\&\*(\**)/"$2($3".&type($1) . ')()'/e;
|
---|
1181 | s/^(\d+)\&/&type($1)/e;
|
---|
1182 | s/^(\d+)/&type($1)/e;
|
---|
1183 | s/(\*+)([^*]+)(\*+)/$1$3$2/;
|
---|
1184 | s/\((\*+)(\w+)(\*+)\)/$3($1$2)/;
|
---|
1185 | s/^(\d+)([\*\[].*)/&type($1).$2/e;
|
---|
1186 | #s/(\d+)(\*|(\[[\[\]\d\*]+]\])+)/&type($1).$2/ge;
|
---|
1187 | $type[$i] = $_;
|
---|
1188 | print "$_\n" if $debug;
|
---|
1189 | }
|
---|
1190 | }
|
---|
1191 | sub type { &psou($type[$_[0]] || "<UNDEFINED>"); }
|
---|
1192 |
|
---|
1193 | sub adjust_start_addrs {
|
---|
1194 | for (sort keys %start) {
|
---|
1195 | ($basename = $_) =~ s/\.[^.]+$//;
|
---|
1196 | $start{$_} += $start{$basename};
|
---|
1197 | print "start: $_ @ $start{$_}\n" if $debug;
|
---|
1198 | }
|
---|
1199 | }
|
---|
1200 |
|
---|
1201 | sub sou {
|
---|
1202 | local($what, $_) = @_;
|
---|
1203 | /u/ && $isaunion{$what}++;
|
---|
1204 | /s/ && $isastruct{$what}++;
|
---|
1205 | }
|
---|
1206 |
|
---|
1207 | sub psou {
|
---|
1208 | local($what) = @_;
|
---|
1209 | local($prefix) = '';
|
---|
1210 | if ($isaunion{$what}) {
|
---|
1211 | $prefix = 'union ';
|
---|
1212 | } elsif ($isastruct{$what}) {
|
---|
1213 | $prefix = 'struct ';
|
---|
1214 | }
|
---|
1215 | $prefix . $what;
|
---|
1216 | }
|
---|
1217 |
|
---|
1218 | sub scrunch {
|
---|
1219 | local($_) = @_;
|
---|
1220 |
|
---|
1221 | return '' if $_ eq '';
|
---|
1222 |
|
---|
1223 | study;
|
---|
1224 |
|
---|
1225 | s/\$//g;
|
---|
1226 | s/ / /g;
|
---|
1227 | 1 while s/(\w) \1/$1$1/g;
|
---|
1228 |
|
---|
1229 | # i wanna say this, but perl resists my efforts:
|
---|
1230 | # s/(\w)(\1+)/$2 . length($1)/ge;
|
---|
1231 |
|
---|
1232 | &quick_scrunch;
|
---|
1233 |
|
---|
1234 | s/ $//;
|
---|
1235 |
|
---|
1236 | $_;
|
---|
1237 | }
|
---|
1238 |
|
---|
1239 | sub buildscrunchlist {
|
---|
1240 | $scrunch_code = "sub quick_scrunch {\n";
|
---|
1241 | for (values %intrinsics) {
|
---|
1242 | $scrunch_code .= "\ts/(${_}{2,})/'$_' . length(\$1)/ge;\n";
|
---|
1243 | }
|
---|
1244 | $scrunch_code .= "}\n";
|
---|
1245 | print "$scrunch_code" if $debug;
|
---|
1246 | eval $scrunch_code;
|
---|
1247 | &panic("can't eval scrunch_code $@ \nscrunch_code") if $@;
|
---|
1248 | }
|
---|
1249 |
|
---|
1250 | sub fetch_template {
|
---|
1251 | local($mytype) = @_;
|
---|
1252 | local($fmt);
|
---|
1253 | local($count) = 1;
|
---|
1254 |
|
---|
1255 | &panic("why do you care?") unless $perl;
|
---|
1256 |
|
---|
1257 | if ($mytype =~ s/(\[\d+\])+$//) {
|
---|
1258 | $count .= $1;
|
---|
1259 | }
|
---|
1260 |
|
---|
1261 | if ($mytype =~ /\*/) {
|
---|
1262 | $fmt = $template{'pointer'};
|
---|
1263 | }
|
---|
1264 | elsif (defined $template{$mytype}) {
|
---|
1265 | $fmt = $template{$mytype};
|
---|
1266 | }
|
---|
1267 | elsif (defined $struct{$mytype}) {
|
---|
1268 | if (!defined $template{&psou($mytype)}) {
|
---|
1269 | &build_template($mytype) unless $mytype eq $name;
|
---|
1270 | }
|
---|
1271 | elsif ($template{&psou($mytype)} !~ /\$$/) {
|
---|
1272 | #warn "incomplete template for $mytype\n";
|
---|
1273 | }
|
---|
1274 | $fmt = $template{&psou($mytype)} || '?';
|
---|
1275 | }
|
---|
1276 | else {
|
---|
1277 | warn "unknown fmt for $mytype\n";
|
---|
1278 | $fmt = '?';
|
---|
1279 | }
|
---|
1280 |
|
---|
1281 | $fmt x $count . ' ';
|
---|
1282 | }
|
---|
1283 |
|
---|
1284 | sub compute_intrinsics {
|
---|
1285 | &safedir;
|
---|
1286 | local($TMP) = "$SAFEDIR/c2ph-i.$$.c";
|
---|
1287 | open (TMP, ">$TMP") || die "can't open $TMP: $!";
|
---|
1288 | select(TMP);
|
---|
1289 |
|
---|
1290 | print STDERR "computing intrinsic sizes: " if $trace;
|
---|
1291 |
|
---|
1292 | undef %intrinsics;
|
---|
1293 |
|
---|
1294 | print <<'EOF';
|
---|
1295 | main() {
|
---|
1296 | char *mask = "%d %s\n";
|
---|
1297 | EOF
|
---|
1298 |
|
---|
1299 | for $type (@intrinsics) {
|
---|
1300 | next if !$type || $type eq 'void' || $type =~ /complex/; # sun stuff
|
---|
1301 | print <<"EOF";
|
---|
1302 | printf(mask,sizeof($type), "$type");
|
---|
1303 | EOF
|
---|
1304 | }
|
---|
1305 |
|
---|
1306 | print <<'EOF';
|
---|
1307 | printf(mask,sizeof(char *), "pointer");
|
---|
1308 | exit(0);
|
---|
1309 | }
|
---|
1310 | EOF
|
---|
1311 | close TMP;
|
---|
1312 |
|
---|
1313 | select(STDOUT);
|
---|
1314 | open(PIPE, "cd $SAFEDIR && $CC $TMP && $SAFEDIR/a.out|");
|
---|
1315 | while (<PIPE>) {
|
---|
1316 | chop;
|
---|
1317 | split(' ',$_,2);;
|
---|
1318 | print "intrinsic $_[1] is size $_[0]\n" if $debug;
|
---|
1319 | $sizeof{$_[1]} = $_[0];
|
---|
1320 | $intrinsics{$_[1]} = $template{$_[0]};
|
---|
1321 | }
|
---|
1322 | close(PIPE) || die "couldn't read intrinsics!";
|
---|
1323 | unlink($TMP, '$SAFEDIR/a.out');
|
---|
1324 | print STDERR "done\n" if $trace;
|
---|
1325 | }
|
---|
1326 |
|
---|
1327 | sub scripts2count {
|
---|
1328 | local($_) = @_;
|
---|
1329 |
|
---|
1330 | s/^\[//;
|
---|
1331 | s/\]$//;
|
---|
1332 | s/\]\[/*/g;
|
---|
1333 | $_ = eval;
|
---|
1334 | &panic("$_: $@") if $@;
|
---|
1335 | $_;
|
---|
1336 | }
|
---|
1337 |
|
---|
1338 | sub system {
|
---|
1339 | print STDERR "@_\n" if $trace;
|
---|
1340 | system @_;
|
---|
1341 | }
|
---|
1342 |
|
---|
1343 | sub build_template {
|
---|
1344 | local($name) = @_;
|
---|
1345 |
|
---|
1346 | &panic("already got a template for $name") if defined $template{$name};
|
---|
1347 |
|
---|
1348 | local($build_templates) = 1;
|
---|
1349 |
|
---|
1350 | local($lparen) = '(' x $build_recursed;
|
---|
1351 | local($rparen) = ')' x $build_recursed;
|
---|
1352 |
|
---|
1353 | print STDERR "$lparen$name$rparen " if $trace;
|
---|
1354 | $build_recursed++;
|
---|
1355 | &pstruct($name,$name,0);
|
---|
1356 | print STDERR "TEMPLATE for $name is ", $template{&psou($name)}, "\n" if $debug;
|
---|
1357 | --$build_recursed;
|
---|
1358 | }
|
---|
1359 |
|
---|
1360 |
|
---|
1361 | sub panic {
|
---|
1362 |
|
---|
1363 | select(STDERR);
|
---|
1364 |
|
---|
1365 | print "\npanic: @_\n";
|
---|
1366 |
|
---|
1367 | exit 1 if $] <= 4.003; # caller broken
|
---|
1368 |
|
---|
1369 | local($i,$_);
|
---|
1370 | local($p,$f,$l,$s,$h,$a,@a,@sub);
|
---|
1371 | for ($i = 0; ($p,$f,$l,$s,$h,$w) = caller($i); $i++) {
|
---|
1372 | @a = @DB'args;
|
---|
1373 | for (@a) {
|
---|
1374 | if (/^StB\000/ && length($_) == length($_main{'_main'})) {
|
---|
1375 | $_ = sprintf("%s",$_);
|
---|
1376 | }
|
---|
1377 | else {
|
---|
1378 | s/'/\\'/g;
|
---|
1379 | s/([^\0]*)/'$1'/ unless /^-?[\d.]+$/;
|
---|
1380 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg;
|
---|
1381 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg;
|
---|
1382 | }
|
---|
1383 | }
|
---|
1384 | $w = $w ? '@ = ' : '$ = ';
|
---|
1385 | $a = $h ? '(' . join(', ', @a) . ')' : '';
|
---|
1386 | push(@sub, "$w&$s$a from file $f line $l\n");
|
---|
1387 | last if $signal;
|
---|
1388 | }
|
---|
1389 | for ($i=0; $i <= $#sub; $i++) {
|
---|
1390 | last if $signal;
|
---|
1391 | print $sub[$i];
|
---|
1392 | }
|
---|
1393 | exit 1;
|
---|
1394 | }
|
---|
1395 |
|
---|
1396 | sub squishseq {
|
---|
1397 | local($num);
|
---|
1398 | local($last) = -1e8;
|
---|
1399 | local($string);
|
---|
1400 | local($seq) = '..';
|
---|
1401 |
|
---|
1402 | while (defined($num = shift)) {
|
---|
1403 | if ($num == ($last + 1)) {
|
---|
1404 | $string .= $seq unless $inseq++;
|
---|
1405 | $last = $num;
|
---|
1406 | next;
|
---|
1407 | } elsif ($inseq) {
|
---|
1408 | $string .= $last unless $last == -1e8;
|
---|
1409 | }
|
---|
1410 |
|
---|
1411 | $string .= ',' if defined $string;
|
---|
1412 | $string .= $num;
|
---|
1413 | $last = $num;
|
---|
1414 | $inseq = 0;
|
---|
1415 | }
|
---|
1416 | $string .= $last if $inseq && $last != -e18;
|
---|
1417 | $string;
|
---|
1418 | }
|
---|
1419 |
|
---|
1420 | sub repeat_template {
|
---|
1421 | # local($template, $scripts) = @_; have to change caller's values
|
---|
1422 |
|
---|
1423 | if ( $_[1] ) {
|
---|
1424 | local($ncount) = &scripts2count($_[1]);
|
---|
1425 | if ($_[0] =~ /^\s*c\s*$/i) {
|
---|
1426 | $_[0] = "A$ncount ";
|
---|
1427 | $_[1] = '';
|
---|
1428 | } else {
|
---|
1429 | $_[0] = $template x $ncount;
|
---|
1430 | }
|
---|
1431 | }
|
---|
1432 | }
|
---|
1433 | !NO!SUBS!
|
---|
1434 |
|
---|
1435 | close OUT or die "Can't close $file: $!";
|
---|
1436 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
|
---|
1437 | unlink 'pstruct';
|
---|
1438 | print "Linking c2ph to pstruct.\n";
|
---|
1439 | if (defined $Config{d_link}) {
|
---|
1440 | link 'c2ph', 'pstruct';
|
---|
1441 | } else {
|
---|
1442 | unshift @INC, '../lib';
|
---|
1443 | require File::Copy;
|
---|
1444 | File::Copy::syscopy('c2ph', 'pstruct');
|
---|
1445 | }
|
---|
1446 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
|
---|
1447 | chdir $origdir;
|
---|