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      1 #!/usr/bin/perl 
      2 #*
      3 #*******************************************************************************
      4 #*   Copyright (C) 2001-2010, International Business Machines
      5 #*   Corporation and others.  All Rights Reserved.
      6 #*******************************************************************************
      7 #*
      8 #*   file name:  genren.pl
      9 #*   encoding:   US-ASCII
     10 #*   tab size:   8 (not used)
     11 #*   indentation:4
     12 #*
     13 #*   Created by: Vladimir Weinstein
     14 #*   07/19/2001
     15 #*
     16 #*  Used to generate renaming headers.
     17 #*  Run on UNIX platforms (linux) in order to catch all the exports
     18 
     19 use POSIX qw(strftime);
     20 
     21 $headername = 'urename.h';
     22 
     23 $path = substr($0, 0, rindex($0, "/")+1)."../../common/unicode/uversion.h";
     24 
     25 $nmopts = '-Cg -f s';
     26 $post = '';
     27 
     28 $mode = 'POSIX';
     29 
     30 (-e $path) || die "Cannot find uversion.h";
     31 
     32 open(UVERSION, $path);
     33 
     34 while(<UVERSION>) {
     35     if(/\#define U_ICU_VERSION_SUFFIX/) {
     36         chop;
     37         s/\#define U_ICU_VERSION_SUFFIX //;
     38         $U_ICU_VERSION_SUFFIX = "$_";
     39         last;
     40     }
     41 }
     42 
     43 while($ARGV[0] =~ /^-/) { # detects whether there are any arguments
     44     $_ = shift @ARGV;      # extracts the argument for processing
     45     /^-v/ && ($VERBOSE++, next);                      # verbose
     46     /^-h/ && (&printHelpMsgAndExit, next);               # help
     47     /^-o/ && (($headername = shift (@ARGV)), next);   # output file
     48     /^-n/ && (($nmopts = shift (@ARGV)), next);   # nm opts
     49     /^-p/ && (($post = shift (@ARGV)), next);   # nm opts
     50     /^-x/ && (($mode = shift (@ARGV)), next);   # nm opts
     51     /^-S/ && (($U_ICU_VERSION_SUFFIX = shift(@ARGV)), next); # pick the suffix
     52     warn("Invalid option $_\n");
     53     &printHelpMsgAndExit;
     54 }
     55 
     56 unless(@ARGV > 0) {
     57     warn "No libraries, exiting...\n";
     58     &printHelpMsgAndExit;
     59 }
     60 
     61 #$headername = "uren".substr($ARGV[0], 6, index(".", $ARGV[0])-7).".h";
     62     
     63 $HEADERDEF = uc($headername);  # this is building the constant for #define
     64 $HEADERDEF =~ s/\./_/;
     65 
     66     
     67     open HEADER, ">$headername"; # opening a header file
     68 
     69 #We will print our copyright here + warnings
     70 
     71 $YEAR = strftime "%Y",localtime;
     72 
     73 print HEADER <<"EndOfHeaderComment";
     74 /*
     75 *******************************************************************************
     76 *   Copyright (C) 2002-$YEAR, International Business Machines
     77 *   Corporation and others.  All Rights Reserved.
     78 *******************************************************************************
     79 *
     80 *   file name:  $headername
     81 *   encoding:   US-ASCII
     82 *   tab size:   8 (not used)
     83 *   indentation:4
     84 *
     85 *   Created by: Perl script written by Vladimir Weinstein
     86 *
     87 *  Contains data for renaming ICU exports.
     88 *  Gets included by umachine.h
     89 *
     90 *  THIS FILE IS MACHINE-GENERATED, DON'T PLAY WITH IT IF YOU DON'T KNOW WHAT
     91 *  YOU ARE DOING, OTHERWISE VERY BAD THINGS WILL HAPPEN!
     92 */
     93 
     94 #ifndef $HEADERDEF
     95 #define $HEADERDEF
     96 
     97 /* Uncomment the following line to disable renaming on platforms
     98    that do not use Autoconf. */
     99 /* #define U_DISABLE_RENAMING 1 */
    100 
    101 #if !U_DISABLE_RENAMING
    102 
    103 /* We need the U_ICU_ENTRY_POINT_RENAME definition. There's a default one in unicode/uvernum.h we can use, but we will give
    104    the platform a chance to define it first.
    105    Normally (if utypes.h or umachine.h was included first) this will not be necessary as it will already be defined.
    106  */
    107 #ifndef U_ICU_ENTRY_POINT_RENAME
    108 #include "unicode/umachine.h"
    109 #endif
    110 
    111 /* If we still don't have U_ICU_ENTRY_POINT_RENAME use the default. */
    112 #ifndef U_ICU_ENTRY_POINT_RENAME
    113 #include "unicode/uvernum.h"
    114 #endif
    115 
    116 /* Error out before the following defines cause very strange and unexpected code breakage */
    117 #ifndef U_ICU_ENTRY_POINT_RENAME
    118 #error U_ICU_ENTRY_POINT_RENAME is not defined - cannot continue. Consider defining U_DISABLE_RENAMING if renaming should not be used.
    119 #endif
    120 
    121 EndOfHeaderComment
    122 
    123 $fileCount = 0;
    124 $itemCount = 0;
    125 $symbolCount = 0;
    126 
    127 for(;@ARGV; shift(@ARGV)) {
    128     $fileCount++;
    129     @NMRESULT = `nm $nmopts $ARGV[0] $post`;
    130     if($?) {
    131         warn "Couldn't do 'nm' for $ARGV[0], continuing...\n";
    132         next; # Couldn't do nm for the file
    133     }
    134     if($mode =~ /POSIX/) {
    135         splice @NMRESULT, 0, 6;
    136     } elsif ($mode =~ /Mach-O/) {
    137 #        splice @NMRESULT, 0, 10;
    138     }
    139     foreach (@NMRESULT) { # Process every line of result and stuff it in $_
    140         $itemCount++;
    141         if($mode =~ /POSIX/) {
    142             ($_, $address, $type) = split(/\|/);
    143         } elsif ($mode =~ /Mach-O/) {
    144             if(/^(?:[0-9a-fA-F]){8} ([A-Z]) (?:_)?(.*)$/) {
    145                 ($_, $type) = ($2, $1);
    146             } else {
    147                 next;
    148             }
    149         } else {
    150             die "Unknown mode $mode";
    151         }
    152         &verbose( "type: \"$type\" ");
    153         if(!($type =~ /[UAwW?]/)) {
    154             if(/@@/) { # These would be imports
    155                 &verbose( "Import: $_ \"$type\"\n");
    156                 &verbose( "C++ method: $_\n");
    157             } elsif (/^[^\(]*::/) { # C++ methods, stuff class name in associative array
    158 	        ##  DON'T match    ...  (   foo::bar ...   want :: to be to the left of paren
    159                 ## icu_2_0::CharString::~CharString(void) -> CharString
    160                 @CppName = split(/::/); ## remove scope stuff
    161                 if(@CppName>1) {
    162                     ## MessageFormat virtual table -> MessageFormat
    163                     @CppName = split(/ /, $CppName[1]); ## remove debug stuff
    164                 }
    165                 ## ures_getUnicodeStringByIndex(UResourceBundle -> ures_getUnicodeStringByIndex
    166                 @CppName = split(/\(/, $CppName[0]); ## remove function args
    167                 if($CppName[0] =~ /^operator/) {
    168                     &verbose ("Skipping C++ function: $_\n");
    169                 } elsif($CppName[0] =~ /^~/) {
    170                     &verbose ("Skipping C++ destructor: $_\n");
    171                 } else {
    172 		    &verbose( " Class: '$CppName[0]': $_ \n");
    173                     $CppClasses{$CppName[0]}++;
    174 		    $symbolCount++;
    175                 }
    176 	    } elsif ( my ($cfn) = m/^([A-Za-z0-9_]*)\(.*/ ) {
    177 		&verbose ( "$ARGV[0]:  got global C++ function  $cfn with '$_'\n" );
    178                 $CFuncs{$cfn}++;
    179 		$symbolCount++;
    180             } elsif ( /\(/) { # These are strange functions
    181                 print STDERR "$ARGV[0]: Not sure what to do with '$_'\n";
    182 	    } elsif ( /^_init/ ) {
    183 		&verbose( "$ARGV[0]: Skipped initializer $_\n" );
    184 	    } elsif ( /^_fini/ ) {
    185 		&verbose( "$ARGV[0]: Skipped finilizer $_\n" );
    186             } elsif ( /icu_/) {
    187                 print STDERR "$ARGV[0]: Skipped strange mangled function $_\n";
    188             } elsif ( /^vtable for /) {
    189                 print STDERR "$ARGV[0]: Skipped vtable $_\n";
    190             } elsif ( /^typeinfo for /) {
    191                 print STDERR "$ARGV[0]: Skipped typeinfo $_\n";
    192             } elsif ( /operator\+/ ) {
    193                 print STDERR "$ARGV[0]: Skipped ignored function $_\n";
    194             } else { # This is regular C function 
    195                 &verbose( "C func: $_\n");
    196                 @funcname = split(/[\(\s+]/);
    197                 $CFuncs{$funcname[0]}++;
    198 		$symbolCount++;
    199             }
    200         } else {
    201             &verbose( "Skipped: $_ $1\n");
    202         }
    203     }
    204 }
    205 
    206 if( $fileCount == 0 ) {
    207   die "Error: $itemCount lines from $fileCount files processed, but $symbolCount symbols were found.\n";
    208 }
    209 
    210 if( $symbolCount == 0 ) {
    211   die "Error: $itemCount lines from $fileCount files processed, but $symbolCount symbols were found.\n";
    212 }
    213 
    214 print " Loaded $symbolCount symbols from $itemCount lines in $fileCount files.\n";
    215 
    216 print HEADER "\n/* C exports renaming data */\n\n";
    217 foreach(sort keys(%CFuncs)) {
    218     print HEADER "#define $_ U_ICU_ENTRY_POINT_RENAME($_)\n";
    219 #    print HEADER "#define $_ $_$U_ICU_VERSION_SUFFIX\n";
    220 }
    221 
    222 print HEADER "\n\n";
    223 print HEADER "/* C++ class names renaming defines */\n\n";
    224 print HEADER "#ifdef XP_CPLUSPLUS\n";
    225 print HEADER "#if !U_HAVE_NAMESPACE\n\n";
    226 foreach(sort keys(%CppClasses)) {
    227     print HEADER "#define $_ U_ICU_ENTRY_POINT_RENAME($_)\n";
    228 }
    229 print HEADER "\n#endif\n";
    230 print HEADER "#endif\n";
    231 print HEADER "\n#endif\n";
    232 print HEADER "\n#endif\n";
    233 
    234 close HEADER;
    235 
    236 sub verbose {
    237     if($VERBOSE) {
    238         print STDERR @_;
    239     }
    240 }
    241 
    242 
    243 sub printHelpMsgAndExit {
    244     print STDERR <<"EndHelpText";
    245 Usage: $0 [OPTIONS] LIBRARY_FILES
    246   Options: 
    247     -v - verbose
    248     -h - help
    249     -o - output file name (defaults to 'urename.h'
    250     -S - suffix (defaults to _MAJOR_MINOR of current ICU version)
    251 Will produce a renaming .h file
    252 
    253 EndHelpText
    254 
    255     exit 0;
    256 
    257 }
    258 
    259