| 1 | #!perl -w
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| 2 | # mapsymw - mapsym wrapper Watcom map files
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| 3 |
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| 4 | # Copyright (c) 2007-2019 Steven Levine and Associates, Inc.
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| 5 | # All rights reserved.
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| 6 |
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| 7 | # This program is free software licensed under the terms of the GNU
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| 8 | # General Public License. The GPL Software License can be found in
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| 9 | # gnugpl2.txt or at http://www.gnu.org/licenses/licenses.html#GPL
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| 10 |
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| 11 | # 2007-07-02 SHL Baseline
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| 12 | # 2008-12-14 SHL Ensure symbols sorted by value - some apps care
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| 13 | # 2010-05-03 SHL Comments
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| 14 | # 2010-06-14 SHL Avoid missing C++ symbols
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| 15 | # 2012-03-19 SHL Segment names must be uppercase for pmdf
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| 16 | # 2014-06-13 SHL Correct typos
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| 17 | # 2014-11-01 SHL Generate ibm map files in watcom map file directory
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| 18 | # 2015-01-31 SHL Use unix slashes to keep kLIBC sh.exe happy
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| 19 | # 2019-03-02 SHL More C++ logic
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| 20 | # 2019-03-03 SHL Rework dup logic and sym length limiting
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| 21 |
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| 22 | # mapsym requires each segment to have at least 1 symbol
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| 23 | # mapsym requires 32 bit segments to have at least 1 symbol with offset > 65K
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| 24 | # we generate dummy symbols to enforce this
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| 25 | # mapsym does not understand segment 0
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| 26 | # we generate Imp flags to support this
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| 27 |
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| 28 | use strict;
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| 29 | use warnings;
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| 30 |
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| 31 | # use Package::Subpackage Options;
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| 32 | use POSIX qw(strftime);
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| 33 | use Getopt::Std;
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| 34 | use File::Basename;
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| 35 |
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| 36 | our $g_version = '0.4';
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| 37 |
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| 38 | our $g_cmdname;
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| 39 | our @g_mapfiles; # All map files
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| 40 | our $g_mapfile; # Current .map file name
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| 41 |
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| 42 | &initialize;
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| 43 |
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| 44 | our %g_opts;
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| 45 |
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| 46 | &scan_args;
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| 47 |
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| 48 | print "\n";
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| 49 |
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| 50 | foreach $g_mapfile (@g_mapfiles) {
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| 51 | $g_mapfile =~ tr|\\|/|; # 2015-01-31 SHL Unix slashes for sh.exe
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| 52 | &mapsym;
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| 53 | }
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| 54 |
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| 55 | exit;
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| 56 |
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| 57 | # end main
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| 58 |
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| 59 | #=== initialize() Initialize globals ===
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| 60 |
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| 61 | sub initialize {
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| 62 |
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| 63 | &set_cmd_name;
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| 64 |
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| 65 | } # initialize
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| 66 |
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| 67 | #=== mapsym() Generate work file, run mapsym on work file ===
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| 68 |
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| 69 | sub mapsym {
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| 70 |
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| 71 | # Isolate map file basename
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| 72 | my $mapid = basename($g_mapfile);
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| 73 | $mapid =~ s/\.[^.]*$//; # Strip ext
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| 74 | verbose_msg("\nProcessing $mapid");
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| 75 |
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| 76 | fatal("$g_mapfile does not exist.") if ! -f $g_mapfile;
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| 77 |
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| 78 | open MAPFILE, $g_mapfile or die "open $g_mapfile $!";
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| 79 |
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| 80 | my $g_wrkfile = $g_mapfile . '-ibm';
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| 81 | $g_wrkfile =~ s/-watcom-ibm$/-ibm/; # In case renamed from .map
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| 82 | unlink $g_wrkfile || die "unlink $g_wrkfile $!" if -f $g_wrkfile;
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| 83 | open WRKFILE, ">$g_wrkfile" or die "open $g_wrkfile $!";
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| 84 |
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| 85 | my $modname;
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| 86 | my $state = '';
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| 87 | my $segcnt = 0;
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| 88 | my $symcnt = 0;
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| 89 | my $is32bit;
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| 90 | my %segsinfo;
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| 91 | my %syms;
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| 92 | my $segnum;
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| 93 | my $offset;
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| 94 | my $segaddr;
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| 95 |
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| 96 | my $segfmt;
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| 97 | my $symfmt;
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| 98 |
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| 99 | while (<MAPFILE>) {
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| 100 |
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| 101 | chomp; # EOL
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| 102 |
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| 103 | if (/Executable Image: (\S+)\.\w+$/) {
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| 104 | $modname = $1;
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| 105 | print WRKFILE "Generated by $g_cmdname from $g_mapfile on ",
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| 106 | strftime('%A, %B %d, %Y at %I:%M %p', localtime), "\n\n";
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| 107 | print WRKFILE " $modname\n";
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| 108 | }
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| 109 |
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| 110 | $state = 'segments'
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| 111 | if /Segment Class Group Address Size/;
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| 112 |
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| 113 | $state = 'addresses' if /Address Symbol/;
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| 114 |
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| 115 | # Skip don't cares
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| 116 | next if /^=/;
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| 117 | next if /^ /;
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| 118 | next if /^$/;
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| 119 |
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| 120 | if ($state eq 'segments') {
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| 121 | # In
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| 122 | # Segment Class Group Address Size
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| 123 | # _TEXT16 CODE AUTO 0001:00000000 00000068
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| 124 | # Out
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| 125 | # 0 1 2 3 4 5 6
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| 126 | # 123456789012345678901234567890123456789012345678901234567890
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| 127 | # Start Length Name Class
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| 128 | # 0001:00000000 000000030H _MSGSEG32 CODE 32-bit
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| 129 |
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| 130 | if (/^(\w+)\s+(\w+)\s+\w+\s+([[:xdigit:]]+):([[:xdigit:]]+)\s+([[:xdigit:]]+)$/) {
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| 131 | my $segname = $1;
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| 132 | my $class = $2;
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| 133 | $segnum = $3; # Has leading 0's
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| 134 | $offset = $4;
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| 135 | my $seglen = $5;
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| 136 |
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| 137 | $segaddr = "$segnum:$offset";
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| 138 |
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| 139 | if (!$segcnt) {
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| 140 | # First segment - determine address size (16/32 bit)
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| 141 | $is32bit = length($offset) == 8;
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| 142 | # Output title
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| 143 | print WRKFILE "\n";
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| 144 | if ($is32bit) {
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| 145 | print WRKFILE " Start Length Name Class\n";
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| 146 | $segfmt = " %13s 0%8sH %-22s %s\n";
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| 147 | $symfmt = " %13s %3s %s\n";
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| 148 | } else {
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| 149 | print WRKFILE " Start Length Name Class\n";
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| 150 | $segfmt = " %9s 0%4sH %-22s %s\n";
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| 151 | $symfmt = " %9s %3s %s\n";
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| 152 | }
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| 153 | }
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| 154 |
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| 155 | $seglen = substr($5, -4) if !$is32bit;
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| 156 |
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| 157 | printf WRKFILE $segfmt, $segaddr, $seglen, $segname, $class;
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| 158 | $segcnt++;
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| 159 | }
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| 160 | } # if segments
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| 161 |
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| 162 | if ($state eq 'addresses') {
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| 163 | # In
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| 164 | # Address Symbol
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| 165 | # 0002:0004ae46+ ArcTextProc
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| 166 | # 0002:0d11+ void near IoctlAudioCapability( __2bd9g9REQPACKET far *, short unsigned )
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| 167 | # Out
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| 168 | # 0 1 2 3 4 5 6
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| 169 | # 123456789012345678901234567890123456789012345678901234567890
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| 170 | # Address Publics by Value
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| 171 | # 0000:00000000 Imp WinEmptyClipbrd (PMWIN.733)
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| 172 | # 0002:0001ED40 __towlower_dummy
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| 173 | if (/^([[:xdigit:]]+):([[:xdigit:]]+)[+*]?\s+(.+)$/) {
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| 174 | $segnum = $1;
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| 175 | $offset = $2;
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| 176 | my $sym = $3;
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| 177 |
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| 178 | my $seginfo;
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| 179 | if (defined($segsinfo{$segnum})) {
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| 180 | $seginfo = $segsinfo{$segnum};
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| 181 | } else {
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| 182 | $seginfo = {max_offset => 0,
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| 183 | symcnt => 0};
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| 184 | }
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| 185 |
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| 186 | my $n = hex $offset;
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| 187 | # Remember max symbol offset
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| 188 | $seginfo->{max_offset} = $n if $n > $seginfo->{max_offset};
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| 189 | $seginfo->{symcnt}++;
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| 190 |
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| 191 | $segsinfo{$segnum} = $seginfo;
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| 192 |
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| 193 | $segaddr = "$segnum:$offset";
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| 194 |
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| 195 | # Convert C++ symbols to something mapsym will accept
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| 196 | warn "\n$sym\n";
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| 197 |
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| 198 | $_ = $sym;
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| 199 |
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| 200 | s/\s+\(.*\)//; # Drop (...) comments preceeded by whitespace
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| 201 |
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| 202 | # Make C++ compatible with mapsym
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| 203 |
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| 204 | # Drop keywords and decorations
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| 205 | s/\b(near|int|short|unsigned|long|void|char|const|wchar_t)\b\s*[*&]?\s*//g;
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| 206 |
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| 207 | # s/<[^<>]+>//g; # Replace < > templates with nothing
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| 208 |
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| 209 | s/std::\s*/std/g; # Replace std:: with std
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| 210 | s/::~/__x/g; # Replace destructor ::~ with __x
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| 211 | s/::/__/g; # Replace :: with __
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| 212 |
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| 213 | s/[\[\]()<>,]/ /g; # Replace [ ] < > and , with spaces
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| 214 | s/\s+/_/g; # Replace whitespace with single _
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| 215 | s/__+/_/g; # Replace multiple _ with single _
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| 216 |
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| 217 | # Drop leading and trailing _ to match source code
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| 218 |
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| 219 | s/^_//; # Drop leading _ (cdecl)
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| 220 | s/_$//; # Drop trailing _ (watcall)
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| 221 |
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| 222 | $_ = substr($_, 0, 63) if length($_) > 63; # limit
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| 223 |
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| 224 | warn "\n$_\n";
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| 225 |
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| 226 | # Prune some libc symbols to avoid mapsym overflows
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| 227 | if ($mapid =~ /libc06/) {
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| 228 | # 0001:000b73e0 __ZNSt7codecvtIcc11__mbstate_tEC2Ej
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| 229 | # next if / [0-9A-F]{4}:[0-9A-F]{8} {7}S/;
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| 230 | next if /\b__Z/; # Prune libstdc++
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| 231 | }
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| 232 |
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| 233 | if (!$symcnt) {
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| 234 | # First symbol - output title
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| 235 | print WRKFILE "\n";
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| 236 | if ($is32bit) {
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| 237 | print WRKFILE " Address Publics by Value\n";
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| 238 | } else {
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| 239 | print WRKFILE " Address Publics by Value\n";
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| 240 | }
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| 241 | }
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| 242 |
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| 243 | $syms{$segaddr} = $_;
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| 244 |
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| 245 | $symcnt++;
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| 246 | }
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| 247 | } # if addresses
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| 248 |
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| 249 | } # while lines
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| 250 |
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| 251 | close MAPFILE;
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| 252 |
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| 253 | # Sort segments
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| 254 |
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| 255 | my @keys = sort keys %segsinfo;
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| 256 | if (@keys) {
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| 257 | my $maxseg = pop @keys;
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| 258 | @keys = '0000'..$maxseg;
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| 259 | }
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| 260 |
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| 261 | # Generate dummy symbols for 32-bit segments smaller than 64KB
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| 262 |
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| 263 | foreach $segnum (@keys) {
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| 264 | if ($segnum != 0) {
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| 265 | my $seginfo;
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| 266 | if (defined($segsinfo{$segnum})) {
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| 267 | $seginfo = $segsinfo{$segnum};
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| 268 | } else {
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| 269 | $seginfo = {max_offset => 0,
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| 270 | symcnt => 0};
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| 271 | }
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| 272 | if ($seginfo->{symcnt} == 0) {
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| 273 | warn "Segment $segnum has no symbols - generating dummy symbol\n";
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| 274 | $_ = "SEG${segnum}_dummy";
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| 275 | if ($is32bit) {
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| 276 | $segaddr = "$segnum:00010000";
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| 277 | } else {
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| 278 | $segaddr = "$segnum:0000";
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| 279 | }
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| 280 | $syms{$segaddr} = $_;
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| 281 | $symcnt++;
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| 282 | } elsif ($is32bit && $seginfo->{max_offset} < 0x10000) {
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| 283 | warn "32 bit segment $segnum is smaller than 64K - generating dummy symbol\n";
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| 284 | $_ = "SEG${segnum}_dummy";
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| 285 | $segaddr = "$segnum:00010000";
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| 286 | $syms{$segaddr} = $_;
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| 287 | $symcnt++;
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| 288 | }
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| 289 | }
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| 290 | } # foreach $segnum
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| 291 |
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| 292 | # Generate symbols by value listing
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| 293 | # FIXME to warn if may overflow 64K limit
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| 294 |
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| 295 | @keys = sort keys %syms;
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| 296 | my %used;
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| 297 | foreach $segaddr (@keys) {
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| 298 | my $sym = $syms{$segaddr};
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| 299 | my $imp = substr($segaddr, 0, 4) eq '0000' ? 'Imp' : '';
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| 300 | # Avoid dups
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| 301 | if (defined $used{$sym}) {
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| 302 | my $seq = $used{$sym};
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| 303 | $seq++;
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| 304 | $used{$sym} = $seq;
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| 305 | $sym = "${sym}_$seq";
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| 306 | } else {
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| 307 | $used{$sym} = 0;
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| 308 | }
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| 309 | printf WRKFILE $symfmt, $segaddr, $imp, $sym;
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| 310 | } # foreach
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| 311 |
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| 312 | close WRKFILE;
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| 313 |
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| 314 | die "Can not locate module name. $g_mapfile is probably not a Watcom map file\n" if !defined($modname);
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| 315 |
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| 316 | my $symfile = "$mapid.sym";
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| 317 | unlink $symfile || die "unlink $symfile $!" if -f $symfile;
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| 318 |
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| 319 | warn "Processed $segcnt segments and $symcnt symbols for $modname\n";
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| 320 |
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| 321 | system("mapsym $g_wrkfile");
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| 322 |
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| 323 | } # mapsym
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| 324 |
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| 325 | #=== scan_args(cmdLine) Scan command line ===
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| 326 |
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| 327 | sub scan_args {
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| 328 |
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| 329 | getopts('dhtvV', \%g_opts) || &usage;
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| 330 |
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| 331 | &help if $g_opts{h};
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| 332 |
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| 333 | if ($g_opts{V}) {
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| 334 | print "$g_cmdname v$g_version";
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| 335 | exit;
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| 336 | }
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| 337 |
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| 338 | my $arg;
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| 339 |
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| 340 | for $arg (@ARGV) {
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| 341 | my @maps = glob($arg);
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| 342 | usage("File $arg not found") if @maps == 0;
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| 343 | push @g_mapfiles, @maps;
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| 344 | } # for arg
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| 345 |
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| 346 | } # scan_args
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| 347 |
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| 348 | #=== help() Display scan_args usage help exit routine ===
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| 349 |
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| 350 | sub help {
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| 351 |
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| 352 | print <<EOD;
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| 353 | Generate .sym file for Watcom map files.
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| 354 | Generates temporary map file reformatted for mapsym and
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| 355 | invokes mapsym to process this map file.
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| 356 |
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| 357 | Usage: $g_cmdname [-d] [-h] [-v] [-V] mapfile...
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| 358 | -d Display debug messages
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| 359 | -h Display this message
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| 360 | -v Display progress messages
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| 361 | -V Display version
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| 362 |
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| 363 | mapfile List of map files to process
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| 364 | EOD
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| 365 |
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| 366 | exit 255;
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| 367 |
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| 368 | } # help
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| 369 |
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| 370 | #=== usage(message) Report Scanargs usage error exit routine ===
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| 371 |
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| 372 | sub usage {
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| 373 |
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| 374 | my $msg = shift;
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| 375 | print "\n$msg\n" if $msg;
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| 376 | print <<EOD;
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| 377 |
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| 378 | Usage: $g_cmdname [-d] [-h] [-v] [-V] mapfile...
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| 379 | EOD
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| 380 | exit 255;
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| 381 |
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| 382 | } # usage
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| 383 |
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| 384 | #==========================================================================
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| 385 | #=== SkelFunc standards - Delete unused - Move modified above this mark ===
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| 386 | #==========================================================================
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| 387 |
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| 388 | #=== verbose_msg(message) Display message if verbose ===
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| 389 |
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| 390 | sub verbose_msg {
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| 391 | if ($g_opts{v}) {
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| 392 | my $msg = shift;
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| 393 | if (defined $msg) {
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| 394 | print STDOUT "$msg\n";
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| 395 | } else {
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| 396 | print STDOUT "\n";
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| 397 | }
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| 398 | }
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| 399 | } # verbose_msg
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| 400 |
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| 401 | #==========================================================================
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| 402 | #=== SkelPerl standards - Delete unused - Move modified above this mark ===
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| 403 | #==========================================================================
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| 404 |
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| 405 | #=== fatal(message) Report fatal error and exit ===
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| 406 |
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| 407 | sub fatal {
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| 408 | my $msg = shift;
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| 409 | print "\n";
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| 410 | print STDERR "$g_cmdname: $msg\a\n";
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| 411 | exit 254;
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| 412 |
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| 413 | } # fatal
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| 414 |
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| 415 | #=== set_cmd_name() Set $g_cmdname to script name less path and extension ===
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| 416 |
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| 417 | sub set_cmd_name {
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| 418 | $g_cmdname = $0;
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| 419 | $g_cmdname = basename($g_cmdname);
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| 420 | $g_cmdname =~ s/\.[^.]*$//; # Chop ext
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| 421 |
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| 422 | } # set_cmd_name
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| 423 |
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| 424 | # The end
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