1 | @rem = '--*-Perl-*--
|
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2 | @echo off
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3 | if "%OS%" == "Windows_NT" goto WinNT
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4 | perl -x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9
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5 | goto endofperl
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6 | :WinNT
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7 | perl -x -S %0 %*
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8 | if NOT "%COMSPEC%" == "%SystemRoot%\system32\cmd.exe" goto endofperl
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9 | if %errorlevel% == 9009 echo You do not have Perl in your PATH.
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10 | if errorlevel 1 goto script_failed_so_exit_with_non_zero_val 2>nul
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11 | goto endofperl
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12 | @rem ';
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13 | #!perl
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14 | #line 15
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15 | eval 'exec c:\shaoqunWu\perl\bin\perl.exe -S $0 ${1+"$@"}'
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16 | if $running_under_some_shell;
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17 | #
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18 | #
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19 | # c2ph (aka pstruct)
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20 | # Tom Christiansen, <[email protected]>
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21 | #
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22 | # As pstruct, dump C structures as generated from 'cc -g -S' stabs.
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23 | # As c2ph, do this PLUS generate perl code for getting at the structures.
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24 | #
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25 | # See the usage message for more. If this isn't enough, read the code.
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26 | #
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27 |
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28 | =head1 NAME
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29 |
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30 | c2ph, pstruct - Dump C structures as generated from C<cc -g -S> stabs
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31 |
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32 | =head1 SYNOPSIS
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33 |
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34 | c2ph [-dpnP] [var=val] [files ...]
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35 |
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36 | =head2 OPTIONS
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37 |
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38 | Options:
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39 |
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40 | -w wide; short for: type_width=45 member_width=35 offset_width=8
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41 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04
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42 |
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43 | -n do not generate perl code (default when invoked as pstruct)
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44 | -p generate perl code (default when invoked as c2ph)
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45 | -v generate perl code, with C decls as comments
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46 |
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47 | -i do NOT recompute sizes for intrinsic datatypes
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48 | -a dump information on intrinsics also
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49 |
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50 | -t trace execution
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51 | -d spew reams of debugging output
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52 |
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53 | -slist give comma-separated list a structures to dump
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54 |
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55 | =head1 DESCRIPTION
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56 |
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57 | The following is the old c2ph.doc documentation by Tom Christiansen
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58 | <[email protected]>
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59 | Date: 25 Jul 91 08:10:21 GMT
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60 |
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61 | Once upon a time, I wrote a program called pstruct. It was a perl
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62 | program that tried to parse out C structures and display their member
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63 | offsets for you. This was especially useful for people looking at
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64 | binary dumps or poking around the kernel.
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65 |
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66 | Pstruct was not a pretty program. Neither was it particularly robust.
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67 | The problem, you see, was that the C compiler was much better at parsing
|
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68 | C than I could ever hope to be.
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69 |
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70 | So I got smart: I decided to be lazy and let the C compiler parse the C,
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71 | which would spit out debugger stabs for me to read. These were much
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72 | easier to parse. It's still not a pretty program, but at least it's more
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73 | robust.
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74 |
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75 | Pstruct takes any .c or .h files, or preferably .s ones, since that's
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76 | the format it is going to massage them into anyway, and spits out
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77 | listings like this:
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78 |
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79 | struct tty {
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80 | int tty.t_locker 000 4
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81 | int tty.t_mutex_index 004 4
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82 | struct tty * tty.t_tp_virt 008 4
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83 | struct clist tty.t_rawq 00c 20
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84 | int tty.t_rawq.c_cc 00c 4
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85 | int tty.t_rawq.c_cmax 010 4
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86 | int tty.t_rawq.c_cfx 014 4
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87 | int tty.t_rawq.c_clx 018 4
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88 | struct tty * tty.t_rawq.c_tp_cpu 01c 4
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89 | struct tty * tty.t_rawq.c_tp_iop 020 4
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90 | unsigned char * tty.t_rawq.c_buf_cpu 024 4
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91 | unsigned char * tty.t_rawq.c_buf_iop 028 4
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92 | struct clist tty.t_canq 02c 20
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93 | int tty.t_canq.c_cc 02c 4
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94 | int tty.t_canq.c_cmax 030 4
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95 | int tty.t_canq.c_cfx 034 4
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96 | int tty.t_canq.c_clx 038 4
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97 | struct tty * tty.t_canq.c_tp_cpu 03c 4
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98 | struct tty * tty.t_canq.c_tp_iop 040 4
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99 | unsigned char * tty.t_canq.c_buf_cpu 044 4
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100 | unsigned char * tty.t_canq.c_buf_iop 048 4
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101 | struct clist tty.t_outq 04c 20
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102 | int tty.t_outq.c_cc 04c 4
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103 | int tty.t_outq.c_cmax 050 4
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104 | int tty.t_outq.c_cfx 054 4
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105 | int tty.t_outq.c_clx 058 4
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106 | struct tty * tty.t_outq.c_tp_cpu 05c 4
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107 | struct tty * tty.t_outq.c_tp_iop 060 4
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108 | unsigned char * tty.t_outq.c_buf_cpu 064 4
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109 | unsigned char * tty.t_outq.c_buf_iop 068 4
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110 | (*int)() tty.t_oproc_cpu 06c 4
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111 | (*int)() tty.t_oproc_iop 070 4
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112 | (*int)() tty.t_stopproc_cpu 074 4
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113 | (*int)() tty.t_stopproc_iop 078 4
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114 | struct thread * tty.t_rsel 07c 4
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115 |
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116 | etc.
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117 |
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118 |
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119 | Actually, this was generated by a particular set of options. You can control
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120 | the formatting of each column, whether you prefer wide or fat, hex or decimal,
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121 | leading zeroes or whatever.
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122 |
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123 | All you need to be able to use this is a C compiler than generates
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124 | BSD/GCC-style stabs. The B<-g> option on native BSD compilers and GCC
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125 | should get this for you.
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126 |
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127 | To learn more, just type a bogus option, like B<-\?>, and a long usage message
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128 | will be provided. There are a fair number of possibilities.
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129 |
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130 | If you're only a C programmer, than this is the end of the message for you.
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131 | You can quit right now, and if you care to, save off the source and run it
|
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132 | when you feel like it. Or not.
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133 |
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134 |
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135 |
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136 | But if you're a perl programmer, then for you I have something much more
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137 | wondrous than just a structure offset printer.
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138 |
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139 | You see, if you call pstruct by its other incybernation, c2ph, you have a code
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140 | generator that translates C code into perl code! Well, structure and union
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141 | declarations at least, but that's quite a bit.
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142 |
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143 | Prior to this point, anyone programming in perl who wanted to interact
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144 | with C programs, like the kernel, was forced to guess the layouts of
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145 | the C structures, and then hardwire these into his program. Of course,
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146 | when you took your wonderfully crafted program to a system where the
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147 | sgtty structure was laid out differently, your program broke. Which is
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148 | a shame.
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149 |
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150 | We've had Larry's h2ph translator, which helped, but that only works on
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151 | cpp symbols, not real C, which was also very much needed. What I offer
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152 | you is a symbolic way of getting at all the C structures. I've couched
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153 | them in terms of packages and functions. Consider the following program:
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154 |
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155 | #!/usr/local/bin/perl
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156 |
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157 | require 'syscall.ph';
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158 | require 'sys/time.ph';
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159 | require 'sys/resource.ph';
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160 |
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161 | $ru = "\0" x &rusage'sizeof();
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162 |
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163 | syscall(&SYS_getrusage, &RUSAGE_SELF, $ru) && die "getrusage: $!";
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164 |
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165 | @ru = unpack($t = &rusage'typedef(), $ru);
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166 |
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167 | $utime = $ru[ &rusage'ru_utime + &timeval'tv_sec ]
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168 | + ($ru[ &rusage'ru_utime + &timeval'tv_usec ]) / 1e6;
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169 |
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170 | $stime = $ru[ &rusage'ru_stime + &timeval'tv_sec ]
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171 | + ($ru[ &rusage'ru_stime + &timeval'tv_usec ]) / 1e6;
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172 |
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173 | printf "you have used %8.3fs+%8.3fu seconds.\n", $utime, $stime;
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174 |
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175 |
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176 | As you see, the name of the package is the name of the structure. Regular
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177 | fields are just their own names. Plus the following accessor functions are
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178 | provided for your convenience:
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179 |
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180 | struct This takes no arguments, and is merely the number of first-level
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181 | elements in the structure. You would use this for indexing
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182 | into arrays of structures, perhaps like this
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183 |
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184 |
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185 | $usec = $u[ &user'u_utimer
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186 | + (&ITIMER_VIRTUAL * &itimerval'struct)
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187 | + &itimerval'it_value
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188 | + &timeval'tv_usec
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189 | ];
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190 |
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191 | sizeof Returns the bytes in the structure, or the member if
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192 | you pass it an argument, such as
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193 |
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194 | &rusage'sizeof(&rusage'ru_utime)
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195 |
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196 | typedef This is the perl format definition for passing to pack and
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197 | unpack. If you ask for the typedef of a nothing, you get
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198 | the whole structure, otherwise you get that of the member
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199 | you ask for. Padding is taken care of, as is the magic to
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200 | guarantee that a union is unpacked into all its aliases.
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201 | Bitfields are not quite yet supported however.
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202 |
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203 | offsetof This function is the byte offset into the array of that
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204 | member. You may wish to use this for indexing directly
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205 | into the packed structure with vec() if you're too lazy
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206 | to unpack it.
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207 |
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208 | typeof Not to be confused with the typedef accessor function, this
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209 | one returns the C type of that field. This would allow
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210 | you to print out a nice structured pretty print of some
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211 | structure without knoning anything about it beforehand.
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212 | No args to this one is a noop. Someday I'll post such
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213 | a thing to dump out your u structure for you.
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214 |
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215 |
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216 | The way I see this being used is like basically this:
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217 |
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218 | % h2ph <some_include_file.h > /usr/lib/perl/tmp.ph
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219 | % c2ph some_include_file.h >> /usr/lib/perl/tmp.ph
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220 | % install
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221 |
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222 | It's a little tricker with c2ph because you have to get the includes right.
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223 | I can't know this for your system, but it's not usually too terribly difficult.
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224 |
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225 | The code isn't pretty as I mentioned -- I never thought it would be a 1000-
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226 | line program when I started, or I might not have begun. :-) But I would have
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227 | been less cavalier in how the parts of the program communicated with each
|
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228 | other, etc. It might also have helped if I didn't have to divine the makeup
|
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229 | of the stabs on the fly, and then account for micro differences between my
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230 | compiler and gcc.
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231 |
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232 | Anyway, here it is. Should run on perl v4 or greater. Maybe less.
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233 |
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234 |
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235 | --tom
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236 |
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237 | =cut
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238 |
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239 | $RCSID = '$Id: c2ph,v 1.7 95/10/28 10:41:47 tchrist Exp Locker: tchrist $';
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240 |
|
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241 | use File::Temp;
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242 |
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243 | ######################################################################
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244 |
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245 | # some handy data definitions. many of these can be reset later.
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246 |
|
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247 | $bitorder = 'b'; # ascending; set to B for descending bit fields
|
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248 |
|
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249 | %intrinsics =
|
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250 | %template = (
|
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251 | 'char', 'c',
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252 | 'unsigned char', 'C',
|
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253 | 'short', 's',
|
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254 | 'short int', 's',
|
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255 | 'unsigned short', 'S',
|
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256 | 'unsigned short int', 'S',
|
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257 | 'short unsigned int', 'S',
|
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258 | 'int', 'i',
|
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259 | 'unsigned int', 'I',
|
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260 | 'long', 'l',
|
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261 | 'long int', 'l',
|
---|
262 | 'unsigned long', 'L',
|
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263 | 'unsigned long', 'L',
|
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264 | 'long unsigned int', 'L',
|
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265 | 'unsigned long int', 'L',
|
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266 | 'long long', 'q',
|
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267 | 'long long int', 'q',
|
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268 | 'unsigned long long', 'Q',
|
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269 | 'unsigned long long int', 'Q',
|
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270 | 'float', 'f',
|
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271 | 'double', 'd',
|
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272 | 'pointer', 'p',
|
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273 | 'null', 'x',
|
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274 | 'neganull', 'X',
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275 | 'bit', $bitorder,
|
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276 | );
|
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277 |
|
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278 | &buildscrunchlist;
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279 | delete $intrinsics{'neganull'};
|
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280 | delete $intrinsics{'bit'};
|
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281 | delete $intrinsics{'null'};
|
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282 |
|
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283 | # use -s to recompute sizes
|
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284 | %sizeof = (
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285 | 'char', '1',
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286 | 'unsigned char', '1',
|
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287 | 'short', '2',
|
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288 | 'short int', '2',
|
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289 | 'unsigned short', '2',
|
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290 | 'unsigned short int', '2',
|
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291 | 'short unsigned int', '2',
|
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292 | 'int', '4',
|
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293 | 'unsigned int', '4',
|
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294 | 'long', '4',
|
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295 | 'long int', '4',
|
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296 | 'unsigned long', '4',
|
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297 | 'unsigned long int', '4',
|
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298 | 'long unsigned int', '4',
|
---|
299 | 'long long', '8',
|
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300 | 'long long int', '8',
|
---|
301 | 'unsigned long long', '8',
|
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302 | 'unsigned long long int', '8',
|
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303 | 'float', '4',
|
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304 | 'double', '8',
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305 | 'pointer', '4',
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306 | );
|
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307 |
|
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308 | ($type_width, $member_width, $offset_width, $size_width) = (20, 20, 6, 5);
|
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309 |
|
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310 | ($offset_fmt, $size_fmt) = ('d', 'd');
|
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311 |
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312 | $indent = 2;
|
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313 |
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314 | $CC = 'cc';
|
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315 | $CFLAGS = '-g -S';
|
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316 | $DEFINES = '';
|
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317 |
|
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318 | $perl++ if $0 =~ m#/?c2ph$#;
|
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319 |
|
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320 | require 'getopts.pl';
|
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321 |
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322 | use File::Temp 'tempdir';
|
---|
323 |
|
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324 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift;
|
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325 |
|
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326 | &Getopts('aixdpvtnws:') || &usage(0);
|
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327 |
|
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328 | $opt_d && $debug++;
|
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329 | $opt_t && $trace++;
|
---|
330 | $opt_p && $perl++;
|
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331 | $opt_v && $verbose++;
|
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332 | $opt_n && ($perl = 0);
|
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333 |
|
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334 | if ($opt_w) {
|
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335 | ($type_width, $member_width, $offset_width) = (45, 35, 8);
|
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336 | }
|
---|
337 | if ($opt_x) {
|
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338 | ($offset_fmt, $offset_width, $size_fmt, $size_width) = ( 'x', '08', 'x', 04 );
|
---|
339 | }
|
---|
340 |
|
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341 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift;
|
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342 |
|
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343 | sub PLUMBER {
|
---|
344 | select(STDERR);
|
---|
345 | print "oops, apperent pager foulup\n";
|
---|
346 | $isatty++;
|
---|
347 | &usage(1);
|
---|
348 | }
|
---|
349 |
|
---|
350 | sub usage {
|
---|
351 | local($oops) = @_;
|
---|
352 | unless (-t STDOUT) {
|
---|
353 | select(STDERR);
|
---|
354 | } elsif (!$oops) {
|
---|
355 | $isatty++;
|
---|
356 | $| = 1;
|
---|
357 | print "hit <RETURN> for further explanation: ";
|
---|
358 | <STDIN>;
|
---|
359 | open (PIPE, "|". ($ENV{PAGER} || 'more'));
|
---|
360 | $SIG{PIPE} = PLUMBER;
|
---|
361 | select(PIPE);
|
---|
362 | }
|
---|
363 |
|
---|
364 | print "usage: $0 [-dpnP] [var=val] [files ...]\n";
|
---|
365 |
|
---|
366 | exit unless $isatty;
|
---|
367 |
|
---|
368 | print <<EOF;
|
---|
369 |
|
---|
370 | Options:
|
---|
371 |
|
---|
372 | -w wide; short for: type_width=45 member_width=35 offset_width=8
|
---|
373 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04
|
---|
374 |
|
---|
375 | -n do not generate perl code (default when invoked as pstruct)
|
---|
376 | -p generate perl code (default when invoked as c2ph)
|
---|
377 | -v generate perl code, with C decls as comments
|
---|
378 |
|
---|
379 | -i do NOT recompute sizes for intrinsic datatypes
|
---|
380 | -a dump information on intrinsics also
|
---|
381 |
|
---|
382 | -t trace execution
|
---|
383 | -d spew reams of debugging output
|
---|
384 |
|
---|
385 | -slist give comma-separated list a structures to dump
|
---|
386 |
|
---|
387 |
|
---|
388 | Var Name Default Value Meaning
|
---|
389 |
|
---|
390 | EOF
|
---|
391 |
|
---|
392 | &defvar('CC', 'which_compiler to call');
|
---|
393 | &defvar('CFLAGS', 'how to generate *.s files with stabs');
|
---|
394 | &defvar('DEFINES','any extra cflags or cpp defines, like -I, -D, -U');
|
---|
395 |
|
---|
396 | print "\n";
|
---|
397 |
|
---|
398 | &defvar('type_width', 'width of type field (column 1)');
|
---|
399 | &defvar('member_width', 'width of member field (column 2)');
|
---|
400 | &defvar('offset_width', 'width of offset field (column 3)');
|
---|
401 | &defvar('size_width', 'width of size field (column 4)');
|
---|
402 |
|
---|
403 | print "\n";
|
---|
404 |
|
---|
405 | &defvar('offset_fmt', 'sprintf format type for offset');
|
---|
406 | &defvar('size_fmt', 'sprintf format type for size');
|
---|
407 |
|
---|
408 | print "\n";
|
---|
409 |
|
---|
410 | &defvar('indent', 'how far to indent each nesting level');
|
---|
411 |
|
---|
412 | print <<'EOF';
|
---|
413 |
|
---|
414 | If any *.[ch] files are given, these will be catted together into
|
---|
415 | a temporary *.c file and sent through:
|
---|
416 | $CC $CFLAGS $DEFINES
|
---|
417 | and the resulting *.s groped for stab information. If no files are
|
---|
418 | supplied, then stdin is read directly with the assumption that it
|
---|
419 | contains stab information. All other lines will be ignored. At
|
---|
420 | most one *.s file should be supplied.
|
---|
421 |
|
---|
422 | EOF
|
---|
423 | close PIPE;
|
---|
424 | exit 1;
|
---|
425 | }
|
---|
426 |
|
---|
427 | sub defvar {
|
---|
428 | local($var, $msg) = @_;
|
---|
429 | printf "%-16s%-15s %s\n", $var, eval "\$$var", $msg;
|
---|
430 | }
|
---|
431 |
|
---|
432 | sub safedir {
|
---|
433 | $SAFEDIR = File::Temp::tempdir("c2ph.XXXXXX", TMPDIR => 1, CLEANUP => 1)
|
---|
434 | unless (defined($SAFEDIR));
|
---|
435 | }
|
---|
436 |
|
---|
437 | undef $SAFEDIR;
|
---|
438 |
|
---|
439 | $recurse = 1;
|
---|
440 |
|
---|
441 | if (@ARGV) {
|
---|
442 | if (grep(!/\.[csh]$/,@ARGV)) {
|
---|
443 | warn "Only *.[csh] files expected!\n";
|
---|
444 | &usage;
|
---|
445 | }
|
---|
446 | elsif (grep(/\.s$/,@ARGV)) {
|
---|
447 | if (@ARGV > 1) {
|
---|
448 | warn "Only one *.s file allowed!\n";
|
---|
449 | &usage;
|
---|
450 | }
|
---|
451 | }
|
---|
452 | elsif (@ARGV == 1 && $ARGV[0] =~ /\.c$/) {
|
---|
453 | local($dir, $file) = $ARGV[0] =~ m#(.*/)?(.*)$#;
|
---|
454 | $chdir = "cd $dir && " if $dir;
|
---|
455 | &system("$chdir$CC $CFLAGS $DEFINES $file") && exit 1;
|
---|
456 | $ARGV[0] =~ s/\.c$/.s/;
|
---|
457 | }
|
---|
458 | else {
|
---|
459 | &safedir;
|
---|
460 | $TMP = "$SAFEDIR/c2ph.$$.c";
|
---|
461 | &system("cat @ARGV > $TMP") && exit 1;
|
---|
462 | &system("cd $SAFEDIR && $CC $CFLAGS $DEFINES $TMP") && exit 1;
|
---|
463 | unlink $TMP;
|
---|
464 | $TMP =~ s/\.c$/.s/;
|
---|
465 | @ARGV = ($TMP);
|
---|
466 | }
|
---|
467 | }
|
---|
468 |
|
---|
469 | if ($opt_s) {
|
---|
470 | for (split(/[\s,]+/, $opt_s)) {
|
---|
471 | $interested{$_}++;
|
---|
472 | }
|
---|
473 | }
|
---|
474 |
|
---|
475 |
|
---|
476 | $| = 1 if $debug;
|
---|
477 |
|
---|
478 | main: {
|
---|
479 |
|
---|
480 | if ($trace) {
|
---|
481 | if (-t && !@ARGV) {
|
---|
482 | print STDERR "reading from your keyboard: ";
|
---|
483 | } else {
|
---|
484 | print STDERR "reading from " . (@ARGV ? "@ARGV" : "<STDIN>").": ";
|
---|
485 | }
|
---|
486 | }
|
---|
487 |
|
---|
488 | STAB: while (<>) {
|
---|
489 | if ($trace && !($. % 10)) {
|
---|
490 | $lineno = $..'';
|
---|
491 | print STDERR $lineno, "\b" x length($lineno);
|
---|
492 | }
|
---|
493 | next unless /^\s*\.stabs\s+/;
|
---|
494 | $line = $_;
|
---|
495 | s/^\s*\.stabs\s+//;
|
---|
496 | if (s/\\\\"[d,]+$//) {
|
---|
497 | $saveline .= $line;
|
---|
498 | $savebar = $_;
|
---|
499 | next STAB;
|
---|
500 | }
|
---|
501 | if ($saveline) {
|
---|
502 | s/^"//;
|
---|
503 | $_ = $savebar . $_;
|
---|
504 | $line = $saveline;
|
---|
505 | }
|
---|
506 | &stab;
|
---|
507 | $savebar = $saveline = undef;
|
---|
508 | }
|
---|
509 | print STDERR "$.\n" if $trace;
|
---|
510 | unlink $TMP if $TMP;
|
---|
511 |
|
---|
512 | &compute_intrinsics if $perl && !$opt_i;
|
---|
513 |
|
---|
514 | print STDERR "resolving types\n" if $trace;
|
---|
515 |
|
---|
516 | &resolve_types;
|
---|
517 | &adjust_start_addrs;
|
---|
518 |
|
---|
519 | $sum = 2 + $type_width + $member_width;
|
---|
520 | $pmask1 = "%-${type_width}s %-${member_width}s";
|
---|
521 | $pmask2 = "%-${sum}s %${offset_width}${offset_fmt}%s %${size_width}${size_fmt}%s";
|
---|
522 |
|
---|
523 |
|
---|
524 |
|
---|
525 | if ($perl) {
|
---|
526 | # resolve template -- should be in stab define order, but even this isn't enough.
|
---|
527 | print STDERR "\nbuilding type templates: " if $trace;
|
---|
528 | for $i (reverse 0..$#type) {
|
---|
529 | next unless defined($name = $type[$i]);
|
---|
530 | next unless defined $struct{$name};
|
---|
531 | ($iname = $name) =~ s/\..*//;
|
---|
532 | $build_recursed = 0;
|
---|
533 | &build_template($name) unless defined $template{&psou($name)} ||
|
---|
534 | $opt_s && !$interested{$iname};
|
---|
535 | }
|
---|
536 | print STDERR "\n\n" if $trace;
|
---|
537 | }
|
---|
538 |
|
---|
539 | print STDERR "dumping structs: " if $trace;
|
---|
540 |
|
---|
541 | local($iam);
|
---|
542 |
|
---|
543 |
|
---|
544 |
|
---|
545 | foreach $name (sort keys %struct) {
|
---|
546 | ($iname = $name) =~ s/\..*//;
|
---|
547 | next if $opt_s && !$interested{$iname};
|
---|
548 | print STDERR "$name " if $trace;
|
---|
549 |
|
---|
550 | undef @sizeof;
|
---|
551 | undef @typedef;
|
---|
552 | undef @offsetof;
|
---|
553 | undef @indices;
|
---|
554 | undef @typeof;
|
---|
555 | undef @fieldnames;
|
---|
556 |
|
---|
557 | $mname = &munge($name);
|
---|
558 |
|
---|
559 | $fname = &psou($name);
|
---|
560 |
|
---|
561 | print "# " if $perl && $verbose;
|
---|
562 | $pcode = '';
|
---|
563 | print "$fname {\n" if !$perl || $verbose;
|
---|
564 | $template{$fname} = &scrunch($template{$fname}) if $perl;
|
---|
565 | &pstruct($name,$name,0);
|
---|
566 | print "# " if $perl && $verbose;
|
---|
567 | print "}\n" if !$perl || $verbose;
|
---|
568 | print "\n" if $perl && $verbose;
|
---|
569 |
|
---|
570 | if ($perl) {
|
---|
571 | print "$pcode";
|
---|
572 |
|
---|
573 | printf("\nsub %-32s { %4d; }\n\n", "${mname}'struct", $countof{$name});
|
---|
574 |
|
---|
575 | print <<EOF;
|
---|
576 | sub ${mname}'typedef {
|
---|
577 | local(\$${mname}'index) = shift;
|
---|
578 | defined \$${mname}'index
|
---|
579 | ? \$${mname}'typedef[\$${mname}'index]
|
---|
580 | : \$${mname}'typedef;
|
---|
581 | }
|
---|
582 | EOF
|
---|
583 |
|
---|
584 | print <<EOF;
|
---|
585 | sub ${mname}'sizeof {
|
---|
586 | local(\$${mname}'index) = shift;
|
---|
587 | defined \$${mname}'index
|
---|
588 | ? \$${mname}'sizeof[\$${mname}'index]
|
---|
589 | : \$${mname}'sizeof;
|
---|
590 | }
|
---|
591 | EOF
|
---|
592 |
|
---|
593 | print <<EOF;
|
---|
594 | sub ${mname}'offsetof {
|
---|
595 | local(\$${mname}'index) = shift;
|
---|
596 | defined \$${mname}index
|
---|
597 | ? \$${mname}'offsetof[\$${mname}'index]
|
---|
598 | : \$${mname}'sizeof;
|
---|
599 | }
|
---|
600 | EOF
|
---|
601 |
|
---|
602 | print <<EOF;
|
---|
603 | sub ${mname}'typeof {
|
---|
604 | local(\$${mname}'index) = shift;
|
---|
605 | defined \$${mname}index
|
---|
606 | ? \$${mname}'typeof[\$${mname}'index]
|
---|
607 | : '$name';
|
---|
608 | }
|
---|
609 | EOF
|
---|
610 |
|
---|
611 | print <<EOF;
|
---|
612 | sub ${mname}'fieldnames {
|
---|
613 | \@${mname}'fieldnames;
|
---|
614 | }
|
---|
615 | EOF
|
---|
616 |
|
---|
617 | $iam = ($isastruct{$name} && 's') || ($isaunion{$name} && 'u');
|
---|
618 |
|
---|
619 | print <<EOF;
|
---|
620 | sub ${mname}'isastruct {
|
---|
621 | '$iam';
|
---|
622 | }
|
---|
623 | EOF
|
---|
624 |
|
---|
625 | print "\$${mname}'typedef = '" . &scrunch($template{$fname})
|
---|
626 | . "';\n";
|
---|
627 |
|
---|
628 | print "\$${mname}'sizeof = $sizeof{$name};\n\n";
|
---|
629 |
|
---|
630 |
|
---|
631 | print "\@${mname}'indices = (", &squishseq(@indices), ");\n";
|
---|
632 |
|
---|
633 | print "\n";
|
---|
634 |
|
---|
635 | print "\@${mname}'typedef[\@${mname}'indices] = (",
|
---|
636 | join("\n\t", '', @typedef), "\n );\n\n";
|
---|
637 | print "\@${mname}'sizeof[\@${mname}'indices] = (",
|
---|
638 | join("\n\t", '', @sizeof), "\n );\n\n";
|
---|
639 | print "\@${mname}'offsetof[\@${mname}'indices] = (",
|
---|
640 | join("\n\t", '', @offsetof), "\n );\n\n";
|
---|
641 | print "\@${mname}'typeof[\@${mname}'indices] = (",
|
---|
642 | join("\n\t", '', @typeof), "\n );\n\n";
|
---|
643 | print "\@${mname}'fieldnames[\@${mname}'indices] = (",
|
---|
644 | join("\n\t", '', @fieldnames), "\n );\n\n";
|
---|
645 |
|
---|
646 | $template_printed{$fname}++;
|
---|
647 | $size_printed{$fname}++;
|
---|
648 | }
|
---|
649 | print "\n";
|
---|
650 | }
|
---|
651 |
|
---|
652 | print STDERR "\n" if $trace;
|
---|
653 |
|
---|
654 | unless ($perl && $opt_a) {
|
---|
655 | print "\n1;\n" if $perl;
|
---|
656 | exit;
|
---|
657 | }
|
---|
658 |
|
---|
659 |
|
---|
660 |
|
---|
661 | foreach $name (sort bysizevalue keys %intrinsics) {
|
---|
662 | next if $size_printed{$name};
|
---|
663 | print '$',&munge($name),"'sizeof = ", $sizeof{$name}, ";\n";
|
---|
664 | }
|
---|
665 |
|
---|
666 | print "\n";
|
---|
667 |
|
---|
668 | sub bysizevalue { $sizeof{$a} <=> $sizeof{$b}; }
|
---|
669 |
|
---|
670 |
|
---|
671 | foreach $name (sort keys %intrinsics) {
|
---|
672 | print '$',&munge($name),"'typedef = '", $template{$name}, "';\n";
|
---|
673 | }
|
---|
674 |
|
---|
675 | print "\n1;\n" if $perl;
|
---|
676 |
|
---|
677 | exit;
|
---|
678 | }
|
---|
679 |
|
---|
680 | ########################################################################################
|
---|
681 |
|
---|
682 |
|
---|
683 | sub stab {
|
---|
684 | next unless $continued || /:[\$\w]+(\(\d+,\d+\))?=[\*\$\w]+/; # (\d+,\d+) is for sun
|
---|
685 | s/"// || next;
|
---|
686 | s/",([x\d]+),([x\d]+),([x\d]+),.*// || next;
|
---|
687 |
|
---|
688 | next if /^\s*$/;
|
---|
689 |
|
---|
690 | $size = $3 if $3;
|
---|
691 | $_ = $continued . $_ if length($continued);
|
---|
692 | if (s/\\\\$//) {
|
---|
693 | # if last 2 chars of string are '\\' then stab is continued
|
---|
694 | # in next stab entry
|
---|
695 | chop;
|
---|
696 | $continued = $_;
|
---|
697 | next;
|
---|
698 | }
|
---|
699 | $continued = '';
|
---|
700 |
|
---|
701 |
|
---|
702 | $line = $_;
|
---|
703 |
|
---|
704 | if (($name, $pdecl) = /^([\$ \w]+):[tT]((\d+)(=[rufs*](\d+))+)$/) {
|
---|
705 | print "$name is a typedef for some funky pointers: $pdecl\n" if $debug;
|
---|
706 | &pdecl($pdecl);
|
---|
707 | next;
|
---|
708 | }
|
---|
709 |
|
---|
710 |
|
---|
711 |
|
---|
712 | if (/(([ \w]+):t(\d+|\(\d+,\d+\)))=r?(\d+|\(\d+,\d+\))(;\d+;\d+;)?/) {
|
---|
713 | local($ident) = $2;
|
---|
714 | push(@intrinsics, $ident);
|
---|
715 | $typeno = &typeno($3);
|
---|
716 | $type[$typeno] = $ident;
|
---|
717 | print STDERR "intrinsic $ident in new type $typeno\n" if $debug;
|
---|
718 | next;
|
---|
719 | }
|
---|
720 |
|
---|
721 | if (($name, $typeordef, $typeno, $extra, $struct, $_)
|
---|
722 | = /^([\$ \w]+):([ustT])(\d+|\(\d+,\d+\))(=[rufs*](\d+))?(.*)$/)
|
---|
723 | {
|
---|
724 | $typeno = &typeno($typeno); # sun foolery
|
---|
725 | }
|
---|
726 | elsif (/^[\$\w]+:/) {
|
---|
727 | next; # variable
|
---|
728 | }
|
---|
729 | else {
|
---|
730 | warn "can't grok stab: <$_> in: $line " if $_;
|
---|
731 | next;
|
---|
732 | }
|
---|
733 |
|
---|
734 | #warn "got size $size for $name\n";
|
---|
735 | $sizeof{$name} = $size if $size;
|
---|
736 |
|
---|
737 | s/;[-\d]*;[-\d]*;$//; # we don't care about ranges
|
---|
738 |
|
---|
739 | $typenos{$name} = $typeno;
|
---|
740 |
|
---|
741 | unless (defined $type[$typeno]) {
|
---|
742 | &panic("type 0??") unless $typeno;
|
---|
743 | $type[$typeno] = $name unless defined $type[$typeno];
|
---|
744 | printf "new type $typeno is $name" if $debug;
|
---|
745 | if ($extra =~ /\*/ && defined $type[$struct]) {
|
---|
746 | print ", a typedef for a pointer to " , $type[$struct] if $debug;
|
---|
747 | }
|
---|
748 | } else {
|
---|
749 | printf "%s is type %d", $name, $typeno if $debug;
|
---|
750 | print ", a typedef for " , $type[$typeno] if $debug;
|
---|
751 | }
|
---|
752 | print "\n" if $debug;
|
---|
753 | #next unless $extra =~ /[su*]/;
|
---|
754 |
|
---|
755 | #$type[$struct] = $name;
|
---|
756 |
|
---|
757 | if ($extra =~ /[us*]/) {
|
---|
758 | &sou($name, $extra);
|
---|
759 | $_ = &sdecl($name, $_, 0);
|
---|
760 | }
|
---|
761 | elsif (/^=ar/) {
|
---|
762 | print "it's a bare array typedef -- that's pretty sick\n" if $debug;
|
---|
763 | $_ = "$typeno$_";
|
---|
764 | $scripts = '';
|
---|
765 | $_ = &adecl($_,1);
|
---|
766 |
|
---|
767 | }
|
---|
768 | elsif (s/((\w+):t(\d+|\(\d+,\d+\)))?=r?(;\d+;\d+;)?//) { # the ?'s are for gcc
|
---|
769 | push(@intrinsics, $2);
|
---|
770 | $typeno = &typeno($3);
|
---|
771 | $type[$typeno] = $2;
|
---|
772 | print STDERR "intrinsic $2 in new type $typeno\n" if $debug;
|
---|
773 | }
|
---|
774 | elsif (s/^=e//) { # blessed be thy compiler; mine won't do this
|
---|
775 | &edecl;
|
---|
776 | }
|
---|
777 | else {
|
---|
778 | warn "Funny remainder for $name on line $_ left in $line " if $_;
|
---|
779 | }
|
---|
780 | }
|
---|
781 |
|
---|
782 | sub typeno { # sun thinks types are (0,27) instead of just 27
|
---|
783 | local($_) = @_;
|
---|
784 | s/\(\d+,(\d+)\)/$1/;
|
---|
785 | $_;
|
---|
786 | }
|
---|
787 |
|
---|
788 | sub pstruct {
|
---|
789 | local($what,$prefix,$base) = @_;
|
---|
790 | local($field, $fieldname, $typeno, $count, $offset, $entry);
|
---|
791 | local($fieldtype);
|
---|
792 | local($type, $tname);
|
---|
793 | local($mytype, $mycount, $entry2);
|
---|
794 | local($struct_count) = 0;
|
---|
795 | local($pad, $revpad, $length, $prepad, $lastoffset, $lastlength, $fmt);
|
---|
796 | local($bits,$bytes);
|
---|
797 | local($template);
|
---|
798 |
|
---|
799 |
|
---|
800 | local($mname) = &munge($name);
|
---|
801 |
|
---|
802 | sub munge {
|
---|
803 | local($_) = @_;
|
---|
804 | s/[\s\$\.]/_/g;
|
---|
805 | $_;
|
---|
806 | }
|
---|
807 |
|
---|
808 | local($sname) = &psou($what);
|
---|
809 |
|
---|
810 | $nesting++;
|
---|
811 |
|
---|
812 | for $field (split(/;/, $struct{$what})) {
|
---|
813 | $pad = $prepad = 0;
|
---|
814 | $entry = '';
|
---|
815 | ($fieldname, $typeno, $count, $offset, $length) = split(/,/, $field);
|
---|
816 |
|
---|
817 | $type = $type[$typeno];
|
---|
818 |
|
---|
819 | $type =~ /([^[]*)(\[.*\])?/;
|
---|
820 | $mytype = $1;
|
---|
821 | $count .= $2;
|
---|
822 | $fieldtype = &psou($mytype);
|
---|
823 |
|
---|
824 | local($fname) = &psou($name);
|
---|
825 |
|
---|
826 | if ($build_templates) {
|
---|
827 |
|
---|
828 | $pad = ($offset - ($lastoffset + $lastlength))/8
|
---|
829 | if defined $lastoffset;
|
---|
830 |
|
---|
831 | if (! $finished_template{$sname}) {
|
---|
832 | if ($isaunion{$what}) {
|
---|
833 | $template{$sname} .= 'X' x $revpad . ' ' if $revpad;
|
---|
834 | } else {
|
---|
835 | $template{$sname} .= 'x' x $pad . ' ' if $pad;
|
---|
836 | }
|
---|
837 | }
|
---|
838 |
|
---|
839 | $template = &fetch_template($type);
|
---|
840 | &repeat_template($template,$count);
|
---|
841 |
|
---|
842 | if (! $finished_template{$sname}) {
|
---|
843 | $template{$sname} .= $template;
|
---|
844 | }
|
---|
845 |
|
---|
846 | $revpad = $length/8 if $isaunion{$what};
|
---|
847 |
|
---|
848 | ($lastoffset, $lastlength) = ($offset, $length);
|
---|
849 |
|
---|
850 | } else {
|
---|
851 | print '# ' if $perl && $verbose;
|
---|
852 | $entry = sprintf($pmask1,
|
---|
853 | ' ' x ($nesting * $indent) . $fieldtype,
|
---|
854 | "$prefix.$fieldname" . $count);
|
---|
855 |
|
---|
856 | $entry =~ s/(\*+)( )/$2$1/;
|
---|
857 |
|
---|
858 | printf $pmask2,
|
---|
859 | $entry,
|
---|
860 | ($base+$offset)/8,
|
---|
861 | ($bits = ($base+$offset)%8) ? ".$bits" : " ",
|
---|
862 | $length/8,
|
---|
863 | ($bits = $length % 8) ? ".$bits": ""
|
---|
864 | if !$perl || $verbose;
|
---|
865 |
|
---|
866 | if ($perl) {
|
---|
867 | $template = &fetch_template($type);
|
---|
868 | &repeat_template($template,$count);
|
---|
869 | }
|
---|
870 |
|
---|
871 | if ($perl && $nesting == 1) {
|
---|
872 |
|
---|
873 | push(@sizeof, int($length/8) .",\t# $fieldname");
|
---|
874 | push(@offsetof, int($offset/8) .",\t# $fieldname");
|
---|
875 | local($little) = &scrunch($template);
|
---|
876 | push(@typedef, "'$little', \t# $fieldname");
|
---|
877 | $type =~ s/(struct|union) //;
|
---|
878 | push(@typeof, "'$mytype" . ($count ? $count : '') .
|
---|
879 | "',\t# $fieldname");
|
---|
880 | push(@fieldnames, "'$fieldname',");
|
---|
881 | }
|
---|
882 |
|
---|
883 | print ' ', ' ' x $indent x $nesting, $template
|
---|
884 | if $perl && $verbose;
|
---|
885 |
|
---|
886 | print "\n" if !$perl || $verbose;
|
---|
887 |
|
---|
888 | }
|
---|
889 | if ($perl) {
|
---|
890 | local($mycount) = defined $struct{$mytype} ? $countof{$mytype} : 1;
|
---|
891 | $mycount *= &scripts2count($count) if $count;
|
---|
892 | if ($nesting==1 && !$build_templates) {
|
---|
893 | $pcode .= sprintf("sub %-32s { %4d; }\n",
|
---|
894 | "${mname}'${fieldname}", $struct_count);
|
---|
895 | push(@indices, $struct_count);
|
---|
896 | }
|
---|
897 | $struct_count += $mycount;
|
---|
898 | }
|
---|
899 |
|
---|
900 |
|
---|
901 | &pstruct($type, "$prefix.$fieldname", $base+$offset)
|
---|
902 | if $recurse && defined $struct{$type};
|
---|
903 | }
|
---|
904 |
|
---|
905 | $countof{$what} = $struct_count unless defined $countof{$whati};
|
---|
906 |
|
---|
907 | $template{$sname} .= '$' if $build_templates;
|
---|
908 | $finished_template{$sname}++;
|
---|
909 |
|
---|
910 | if ($build_templates && !defined $sizeof{$name}) {
|
---|
911 | local($fmt) = &scrunch($template{$sname});
|
---|
912 | print STDERR "no size for $name, punting with $fmt..." if $debug;
|
---|
913 | eval '$sizeof{$name} = length(pack($fmt, ()))';
|
---|
914 | if ($@) {
|
---|
915 | chop $@;
|
---|
916 | warn "couldn't get size for \$name: $@";
|
---|
917 | } else {
|
---|
918 | print STDERR $sizeof{$name}, "\n" if $debUg;
|
---|
919 | }
|
---|
920 | }
|
---|
921 |
|
---|
922 | --$nesting;
|
---|
923 | }
|
---|
924 |
|
---|
925 |
|
---|
926 | sub psize {
|
---|
927 | local($me) = @_;
|
---|
928 | local($amstruct) = $struct{$me} ? 'struct ' : '';
|
---|
929 |
|
---|
930 | print '$sizeof{\'', $amstruct, $me, '\'} = ';
|
---|
931 | printf "%d;\n", $sizeof{$me};
|
---|
932 | }
|
---|
933 |
|
---|
934 | sub pdecl {
|
---|
935 | local($pdecl) = @_;
|
---|
936 | local(@pdecls);
|
---|
937 | local($tname);
|
---|
938 |
|
---|
939 | warn "pdecl: $pdecl\n" if $debug;
|
---|
940 |
|
---|
941 | $pdecl =~ s/\(\d+,(\d+)\)/$1/g;
|
---|
942 | $pdecl =~ s/\*//g;
|
---|
943 | @pdecls = split(/=/, $pdecl);
|
---|
944 | $typeno = $pdecls[0];
|
---|
945 | $tname = pop @pdecls;
|
---|
946 |
|
---|
947 | if ($tname =~ s/^f//) { $tname = "$tname&"; }
|
---|
948 | #else { $tname = "$tname*"; }
|
---|
949 |
|
---|
950 | for (reverse @pdecls) {
|
---|
951 | $tname .= s/^f// ? "&" : "*";
|
---|
952 | #$tname =~ s/^f(.*)/$1&/;
|
---|
953 | print "type[$_] is $tname\n" if $debug;
|
---|
954 | $type[$_] = $tname unless defined $type[$_];
|
---|
955 | }
|
---|
956 | }
|
---|
957 |
|
---|
958 |
|
---|
959 |
|
---|
960 | sub adecl {
|
---|
961 | ($arraytype, $unknown, $lower, $upper) = ();
|
---|
962 | #local($typeno);
|
---|
963 | # global $typeno, @type
|
---|
964 | local($_, $typedef) = @_;
|
---|
965 |
|
---|
966 | while (s/^((\d+|\(\d+,\d+\))=)?ar(\d+|\(\d+,\d+\));//) {
|
---|
967 | ($arraytype, $unknown) = ($2, $3);
|
---|
968 | $arraytype = &typeno($arraytype);
|
---|
969 | $unknown = &typeno($unknown);
|
---|
970 | if (s/^(\d+);(\d+);//) {
|
---|
971 | ($lower, $upper) = ($1, $2);
|
---|
972 | $scripts .= '[' . ($upper+1) . ']';
|
---|
973 | } else {
|
---|
974 | warn "can't find array bounds: $_";
|
---|
975 | }
|
---|
976 | }
|
---|
977 | if (s/^([(,)\d*f=]*),(\d+),(\d+);//) {
|
---|
978 | ($start, $length) = ($2, $3);
|
---|
979 | $whatis = $1;
|
---|
980 | if ($whatis =~ /^(\d+|\(\d+,\d+\))=/) {
|
---|
981 | $typeno = &typeno($1);
|
---|
982 | &pdecl($whatis);
|
---|
983 | } else {
|
---|
984 | $typeno = &typeno($whatis);
|
---|
985 | }
|
---|
986 | } elsif (s/^(\d+)(=[*suf]\d*)//) {
|
---|
987 | local($whatis) = $2;
|
---|
988 |
|
---|
989 | if ($whatis =~ /[f*]/) {
|
---|
990 | &pdecl($whatis);
|
---|
991 | } elsif ($whatis =~ /[su]/) { #
|
---|
992 | print "$prefix.$fieldname is an array$scripts anon structs; disgusting\n"
|
---|
993 | if $debug;
|
---|
994 | #$type[$typeno] = $name unless defined $type[$typeno];
|
---|
995 | ##printf "new type $typeno is $name" if $debug;
|
---|
996 | $typeno = $1;
|
---|
997 | $type[$typeno] = "$prefix.$fieldname";
|
---|
998 | local($name) = $type[$typeno];
|
---|
999 | &sou($name, $whatis);
|
---|
1000 | $_ = &sdecl($name, $_, $start+$offset);
|
---|
1001 | 1;
|
---|
1002 | $start = $start{$name};
|
---|
1003 | $offset = $sizeof{$name};
|
---|
1004 | $length = $offset;
|
---|
1005 | } else {
|
---|
1006 | warn "what's this? $whatis in $line ";
|
---|
1007 | }
|
---|
1008 | } elsif (/^\d+$/) {
|
---|
1009 | $typeno = $_;
|
---|
1010 | } else {
|
---|
1011 | warn "bad array stab: $_ in $line ";
|
---|
1012 | next STAB;
|
---|
1013 | }
|
---|
1014 | #local($wasdef) = defined($type[$typeno]) && $debug;
|
---|
1015 | #if ($typedef) {
|
---|
1016 | #print "redefining $type[$typeno] to " if $wasdef;
|
---|
1017 | #$type[$typeno] = "$whatis$scripts"; # unless defined $type[$typeno];
|
---|
1018 | #print "$type[$typeno]\n" if $wasdef;
|
---|
1019 | #} else {
|
---|
1020 | #$type[$arraytype] = $type[$typeno] unless defined $type[$arraytype];
|
---|
1021 | #}
|
---|
1022 | $type[$arraytype] = "$type[$typeno]$scripts" if defined $type[$typeno];
|
---|
1023 | print "type[$arraytype] is $type[$arraytype]\n" if $debug;
|
---|
1024 | print "$prefix.$fieldname is an array of $type[$arraytype]\n" if $debug;
|
---|
1025 | $_;
|
---|
1026 | }
|
---|
1027 |
|
---|
1028 |
|
---|
1029 |
|
---|
1030 | sub sdecl {
|
---|
1031 | local($prefix, $_, $offset) = @_;
|
---|
1032 |
|
---|
1033 | local($fieldname, $scripts, $type, $arraytype, $unknown,
|
---|
1034 | $whatis, $pdecl, $upper,$lower, $start,$length) = ();
|
---|
1035 | local($typeno,$sou);
|
---|
1036 |
|
---|
1037 |
|
---|
1038 | SFIELD:
|
---|
1039 | while (/^([^;]+);/) {
|
---|
1040 | $scripts = '';
|
---|
1041 | warn "sdecl $_\n" if $debug;
|
---|
1042 | if (s/^([\$\w]+)://) {
|
---|
1043 | $fieldname = $1;
|
---|
1044 | } elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { #
|
---|
1045 | $typeno = &typeno($1);
|
---|
1046 | $type[$typeno] = "$prefix.$fieldname";
|
---|
1047 | local($name) = "$prefix.$fieldname";
|
---|
1048 | &sou($name,$2);
|
---|
1049 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset);
|
---|
1050 | $start = $start{$name};
|
---|
1051 | $offset += $sizeof{$name};
|
---|
1052 | #print "done with anon, start is $start, offset is $offset\n";
|
---|
1053 | #next SFIELD;
|
---|
1054 | } else {
|
---|
1055 | warn "weird field $_ of $line" if $debug;
|
---|
1056 | next STAB;
|
---|
1057 | #$fieldname = &gensym;
|
---|
1058 | #$_ = &sdecl("$prefix.$fieldname", $_, $start+$offset);
|
---|
1059 | }
|
---|
1060 |
|
---|
1061 | if (/^(\d+|\(\d+,\d+\))=ar/) {
|
---|
1062 | $_ = &adecl($_);
|
---|
1063 | }
|
---|
1064 | elsif (s/^(\d+|\(\d+,\d+\))?,(\d+),(\d+);//) {
|
---|
1065 | ($start, $length) = ($2, $3);
|
---|
1066 | &panic("no length?") unless $length;
|
---|
1067 | $typeno = &typeno($1) if $1;
|
---|
1068 | }
|
---|
1069 | elsif (s/^(\d+)=xs\w+:,(\d+),(\d+);//) {
|
---|
1070 | ($start, $length) = ($2, $3);
|
---|
1071 | &panic("no length?") unless $length;
|
---|
1072 | $typeno = &typeno($1) if $1;
|
---|
1073 | }
|
---|
1074 | elsif (s/^((\d+|\(\d+,\d+\))(=[*f](\d+|\(\d+,\d+\)))+),(\d+),(\d+);//) {
|
---|
1075 | ($pdecl, $start, $length) = ($1,$5,$6);
|
---|
1076 | &pdecl($pdecl);
|
---|
1077 | }
|
---|
1078 | elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # the dratted anon struct
|
---|
1079 | ($typeno, $sou) = ($1, $2);
|
---|
1080 | $typeno = &typeno($typeno);
|
---|
1081 | if (defined($type[$typeno])) {
|
---|
1082 | warn "now how did we get type $1 in $fieldname of $line?";
|
---|
1083 | } else {
|
---|
1084 | print "anon type $typeno is $prefix.$fieldname\n" if $debug;
|
---|
1085 | $type[$typeno] = "$prefix.$fieldname" unless defined $type[$typeno];
|
---|
1086 | };
|
---|
1087 | local($name) = "$prefix.$fieldname";
|
---|
1088 | &sou($name,$sou);
|
---|
1089 | print "anon ".($isastruct{$name}) ? "struct":"union"." for $prefix.$fieldname\n" if $debug;
|
---|
1090 | $type[$typeno] = "$prefix.$fieldname";
|
---|
1091 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset);
|
---|
1092 | $start = $start{$name};
|
---|
1093 | $length = $sizeof{$name};
|
---|
1094 | }
|
---|
1095 | else {
|
---|
1096 | warn "can't grok stab for $name ($_) in line $line ";
|
---|
1097 | next STAB;
|
---|
1098 | }
|
---|
1099 |
|
---|
1100 | &panic("no length for $prefix.$fieldname") unless $length;
|
---|
1101 | $struct{$name} .= join(',', $fieldname, $typeno, $scripts, $start, $length) . ';';
|
---|
1102 | }
|
---|
1103 | if (s/;\d*,(\d+),(\d+);//) {
|
---|
1104 | local($start, $size) = ($1, $2);
|
---|
1105 | $sizeof{$prefix} = $size;
|
---|
1106 | print "start of $prefix is $start, size of $sizeof{$prefix}\n" if $debug;
|
---|
1107 | $start{$prefix} = $start;
|
---|
1108 | }
|
---|
1109 | $_;
|
---|
1110 | }
|
---|
1111 |
|
---|
1112 | sub edecl {
|
---|
1113 | s/;$//;
|
---|
1114 | $enum{$name} = $_;
|
---|
1115 | $_ = '';
|
---|
1116 | }
|
---|
1117 |
|
---|
1118 | sub resolve_types {
|
---|
1119 | local($sou);
|
---|
1120 | for $i (0 .. $#type) {
|
---|
1121 | next unless defined $type[$i];
|
---|
1122 | $_ = $type[$i];
|
---|
1123 | unless (/\d/) {
|
---|
1124 | print "type[$i] $type[$i]\n" if $debug;
|
---|
1125 | next;
|
---|
1126 | }
|
---|
1127 | print "type[$i] $_ ==> " if $debug;
|
---|
1128 | s/^(\d+)(\**)\&\*(\**)/"$2($3".&type($1) . ')()'/e;
|
---|
1129 | s/^(\d+)\&/&type($1)/e;
|
---|
1130 | s/^(\d+)/&type($1)/e;
|
---|
1131 | s/(\*+)([^*]+)(\*+)/$1$3$2/;
|
---|
1132 | s/\((\*+)(\w+)(\*+)\)/$3($1$2)/;
|
---|
1133 | s/^(\d+)([\*\[].*)/&type($1).$2/e;
|
---|
1134 | #s/(\d+)(\*|(\[[\[\]\d\*]+]\])+)/&type($1).$2/ge;
|
---|
1135 | $type[$i] = $_;
|
---|
1136 | print "$_\n" if $debug;
|
---|
1137 | }
|
---|
1138 | }
|
---|
1139 | sub type { &psou($type[$_[0]] || "<UNDEFINED>"); }
|
---|
1140 |
|
---|
1141 | sub adjust_start_addrs {
|
---|
1142 | for (sort keys %start) {
|
---|
1143 | ($basename = $_) =~ s/\.[^.]+$//;
|
---|
1144 | $start{$_} += $start{$basename};
|
---|
1145 | print "start: $_ @ $start{$_}\n" if $debug;
|
---|
1146 | }
|
---|
1147 | }
|
---|
1148 |
|
---|
1149 | sub sou {
|
---|
1150 | local($what, $_) = @_;
|
---|
1151 | /u/ && $isaunion{$what}++;
|
---|
1152 | /s/ && $isastruct{$what}++;
|
---|
1153 | }
|
---|
1154 |
|
---|
1155 | sub psou {
|
---|
1156 | local($what) = @_;
|
---|
1157 | local($prefix) = '';
|
---|
1158 | if ($isaunion{$what}) {
|
---|
1159 | $prefix = 'union ';
|
---|
1160 | } elsif ($isastruct{$what}) {
|
---|
1161 | $prefix = 'struct ';
|
---|
1162 | }
|
---|
1163 | $prefix . $what;
|
---|
1164 | }
|
---|
1165 |
|
---|
1166 | sub scrunch {
|
---|
1167 | local($_) = @_;
|
---|
1168 |
|
---|
1169 | return '' if $_ eq '';
|
---|
1170 |
|
---|
1171 | study;
|
---|
1172 |
|
---|
1173 | s/\$//g;
|
---|
1174 | s/ / /g;
|
---|
1175 | 1 while s/(\w) \1/$1$1/g;
|
---|
1176 |
|
---|
1177 | # i wanna say this, but perl resists my efforts:
|
---|
1178 | # s/(\w)(\1+)/$2 . length($1)/ge;
|
---|
1179 |
|
---|
1180 | &quick_scrunch;
|
---|
1181 |
|
---|
1182 | s/ $//;
|
---|
1183 |
|
---|
1184 | $_;
|
---|
1185 | }
|
---|
1186 |
|
---|
1187 | sub buildscrunchlist {
|
---|
1188 | $scrunch_code = "sub quick_scrunch {\n";
|
---|
1189 | for (values %intrinsics) {
|
---|
1190 | $scrunch_code .= "\ts/(${_}{2,})/'$_' . length(\$1)/ge;\n";
|
---|
1191 | }
|
---|
1192 | $scrunch_code .= "}\n";
|
---|
1193 | print "$scrunch_code" if $debug;
|
---|
1194 | eval $scrunch_code;
|
---|
1195 | &panic("can't eval scrunch_code $@ \nscrunch_code") if $@;
|
---|
1196 | }
|
---|
1197 |
|
---|
1198 | sub fetch_template {
|
---|
1199 | local($mytype) = @_;
|
---|
1200 | local($fmt);
|
---|
1201 | local($count) = 1;
|
---|
1202 |
|
---|
1203 | &panic("why do you care?") unless $perl;
|
---|
1204 |
|
---|
1205 | if ($mytype =~ s/(\[\d+\])+$//) {
|
---|
1206 | $count .= $1;
|
---|
1207 | }
|
---|
1208 |
|
---|
1209 | if ($mytype =~ /\*/) {
|
---|
1210 | $fmt = $template{'pointer'};
|
---|
1211 | }
|
---|
1212 | elsif (defined $template{$mytype}) {
|
---|
1213 | $fmt = $template{$mytype};
|
---|
1214 | }
|
---|
1215 | elsif (defined $struct{$mytype}) {
|
---|
1216 | if (!defined $template{&psou($mytype)}) {
|
---|
1217 | &build_template($mytype) unless $mytype eq $name;
|
---|
1218 | }
|
---|
1219 | elsif ($template{&psou($mytype)} !~ /\$$/) {
|
---|
1220 | #warn "incomplete template for $mytype\n";
|
---|
1221 | }
|
---|
1222 | $fmt = $template{&psou($mytype)} || '?';
|
---|
1223 | }
|
---|
1224 | else {
|
---|
1225 | warn "unknown fmt for $mytype\n";
|
---|
1226 | $fmt = '?';
|
---|
1227 | }
|
---|
1228 |
|
---|
1229 | $fmt x $count . ' ';
|
---|
1230 | }
|
---|
1231 |
|
---|
1232 | sub compute_intrinsics {
|
---|
1233 | &safedir;
|
---|
1234 | local($TMP) = "$SAFEDIR/c2ph-i.$$.c";
|
---|
1235 | open (TMP, ">$TMP") || die "can't open $TMP: $!";
|
---|
1236 | select(TMP);
|
---|
1237 |
|
---|
1238 | print STDERR "computing intrinsic sizes: " if $trace;
|
---|
1239 |
|
---|
1240 | undef %intrinsics;
|
---|
1241 |
|
---|
1242 | print <<'EOF';
|
---|
1243 | main() {
|
---|
1244 | char *mask = "%d %s\n";
|
---|
1245 | EOF
|
---|
1246 |
|
---|
1247 | for $type (@intrinsics) {
|
---|
1248 | next if !$type || $type eq 'void' || $type =~ /complex/; # sun stuff
|
---|
1249 | print <<"EOF";
|
---|
1250 | printf(mask,sizeof($type), "$type");
|
---|
1251 | EOF
|
---|
1252 | }
|
---|
1253 |
|
---|
1254 | print <<'EOF';
|
---|
1255 | printf(mask,sizeof(char *), "pointer");
|
---|
1256 | exit(0);
|
---|
1257 | }
|
---|
1258 | EOF
|
---|
1259 | close TMP;
|
---|
1260 |
|
---|
1261 | select(STDOUT);
|
---|
1262 | open(PIPE, "cd $SAFEDIR && $CC $TMP && $SAFEDIR/a.out|");
|
---|
1263 | while (<PIPE>) {
|
---|
1264 | chop;
|
---|
1265 | split(' ',$_,2);;
|
---|
1266 | print "intrinsic $_[1] is size $_[0]\n" if $debug;
|
---|
1267 | $sizeof{$_[1]} = $_[0];
|
---|
1268 | $intrinsics{$_[1]} = $template{$_[0]};
|
---|
1269 | }
|
---|
1270 | close(PIPE) || die "couldn't read intrinsics!";
|
---|
1271 | unlink($TMP, '$SAFEDIR/a.out');
|
---|
1272 | print STDERR "done\n" if $trace;
|
---|
1273 | }
|
---|
1274 |
|
---|
1275 | sub scripts2count {
|
---|
1276 | local($_) = @_;
|
---|
1277 |
|
---|
1278 | s/^\[//;
|
---|
1279 | s/\]$//;
|
---|
1280 | s/\]\[/*/g;
|
---|
1281 | $_ = eval;
|
---|
1282 | &panic("$_: $@") if $@;
|
---|
1283 | $_;
|
---|
1284 | }
|
---|
1285 |
|
---|
1286 | sub system {
|
---|
1287 | print STDERR "@_\n" if $trace;
|
---|
1288 | system @_;
|
---|
1289 | }
|
---|
1290 |
|
---|
1291 | sub build_template {
|
---|
1292 | local($name) = @_;
|
---|
1293 |
|
---|
1294 | &panic("already got a template for $name") if defined $template{$name};
|
---|
1295 |
|
---|
1296 | local($build_templates) = 1;
|
---|
1297 |
|
---|
1298 | local($lparen) = '(' x $build_recursed;
|
---|
1299 | local($rparen) = ')' x $build_recursed;
|
---|
1300 |
|
---|
1301 | print STDERR "$lparen$name$rparen " if $trace;
|
---|
1302 | $build_recursed++;
|
---|
1303 | &pstruct($name,$name,0);
|
---|
1304 | print STDERR "TEMPLATE for $name is ", $template{&psou($name)}, "\n" if $debug;
|
---|
1305 | --$build_recursed;
|
---|
1306 | }
|
---|
1307 |
|
---|
1308 |
|
---|
1309 | sub panic {
|
---|
1310 |
|
---|
1311 | select(STDERR);
|
---|
1312 |
|
---|
1313 | print "\npanic: @_\n";
|
---|
1314 |
|
---|
1315 | exit 1 if $] <= 4.003; # caller broken
|
---|
1316 |
|
---|
1317 | local($i,$_);
|
---|
1318 | local($p,$f,$l,$s,$h,$a,@a,@sub);
|
---|
1319 | for ($i = 0; ($p,$f,$l,$s,$h,$w) = caller($i); $i++) {
|
---|
1320 | @a = @DB'args;
|
---|
1321 | for (@a) {
|
---|
1322 | if (/^StB\000/ && length($_) == length($_main{'_main'})) {
|
---|
1323 | $_ = sprintf("%s",$_);
|
---|
1324 | }
|
---|
1325 | else {
|
---|
1326 | s/'/\\'/g;
|
---|
1327 | s/([^\0]*)/'$1'/ unless /^-?[\d.]+$/;
|
---|
1328 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg;
|
---|
1329 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg;
|
---|
1330 | }
|
---|
1331 | }
|
---|
1332 | $w = $w ? '@ = ' : '$ = ';
|
---|
1333 | $a = $h ? '(' . join(', ', @a) . ')' : '';
|
---|
1334 | push(@sub, "$w&$s$a from file $f line $l\n");
|
---|
1335 | last if $signal;
|
---|
1336 | }
|
---|
1337 | for ($i=0; $i <= $#sub; $i++) {
|
---|
1338 | last if $signal;
|
---|
1339 | print $sub[$i];
|
---|
1340 | }
|
---|
1341 | exit 1;
|
---|
1342 | }
|
---|
1343 |
|
---|
1344 | sub squishseq {
|
---|
1345 | local($num);
|
---|
1346 | local($last) = -1e8;
|
---|
1347 | local($string);
|
---|
1348 | local($seq) = '..';
|
---|
1349 |
|
---|
1350 | while (defined($num = shift)) {
|
---|
1351 | if ($num == ($last + 1)) {
|
---|
1352 | $string .= $seq unless $inseq++;
|
---|
1353 | $last = $num;
|
---|
1354 | next;
|
---|
1355 | } elsif ($inseq) {
|
---|
1356 | $string .= $last unless $last == -1e8;
|
---|
1357 | }
|
---|
1358 |
|
---|
1359 | $string .= ',' if defined $string;
|
---|
1360 | $string .= $num;
|
---|
1361 | $last = $num;
|
---|
1362 | $inseq = 0;
|
---|
1363 | }
|
---|
1364 | $string .= $last if $inseq && $last != -e18;
|
---|
1365 | $string;
|
---|
1366 | }
|
---|
1367 |
|
---|
1368 | sub repeat_template {
|
---|
1369 | # local($template, $scripts) = @_; have to change caller's values
|
---|
1370 |
|
---|
1371 | if ( $_[1] ) {
|
---|
1372 | local($ncount) = &scripts2count($_[1]);
|
---|
1373 | if ($_[0] =~ /^\s*c\s*$/i) {
|
---|
1374 | $_[0] = "A$ncount ";
|
---|
1375 | $_[1] = '';
|
---|
1376 | } else {
|
---|
1377 | $_[0] = $template x $ncount;
|
---|
1378 | }
|
---|
1379 | }
|
---|
1380 | }
|
---|
1381 |
|
---|
1382 | __END__
|
---|
1383 | :endofperl
|
---|