[10723] | 1 | # minimod.PL writes the contents of miniperlmain.c into the module |
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| 2 | # ExtUtils::Miniperl for later perusal (when the perl source is |
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| 3 | # deleted) |
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| 4 | # |
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| 5 | # It also writes the subroutine writemain(), which takes as its |
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| 6 | # arguments module names that shall be statically linked into perl. |
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| 7 | # |
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| 8 | # Authors: Andreas Koenig <k@franz.ww.TU-Berlin.DE>, Tim Bunce |
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| 9 | # <Tim.Bunce@ig.co.uk> |
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| 10 | # |
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| 11 | # Version 1.0, Feb 2nd 1995 by Andreas Koenig |
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| 12 | |
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| 13 | print <<'END'; |
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| 14 | # This File keeps the contents of miniperlmain.c. |
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| 15 | # |
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| 16 | # It was generated automatically by minimod.PL from the contents |
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| 17 | # of miniperlmain.c. Don't edit this file! |
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| 18 | # |
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| 19 | # ANY CHANGES MADE HERE WILL BE LOST! |
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| 20 | # |
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| 21 | |
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| 22 | |
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| 23 | package ExtUtils::Miniperl; |
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| 24 | require Exporter; |
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| 25 | @ISA = qw(Exporter); |
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| 26 | @EXPORT = qw(&writemain); |
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| 27 | |
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| 28 | $head= <<'EOF!HEAD'; |
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| 29 | END |
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| 30 | |
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| 31 | open MINI, "miniperlmain.c"; |
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| 32 | while (<MINI>) { |
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| 33 | last if /Do not delete this line--writemain depends on it/; |
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| 34 | print; |
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| 35 | } |
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| 36 | |
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| 37 | print <<'END'; |
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| 38 | EOF!HEAD |
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| 39 | $tail=<<'EOF!TAIL'; |
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| 40 | END |
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| 41 | |
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| 42 | while (<MINI>) { |
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| 43 | print unless /dXSUB_SYS/; |
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| 44 | } |
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| 45 | close MINI; |
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| 46 | |
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| 47 | print <<'END'; |
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| 48 | EOF!TAIL |
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| 49 | |
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| 50 | sub writemain{ |
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| 51 | my(@exts) = @_; |
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| 52 | |
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| 53 | my($pname); |
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| 54 | my($dl) = canon('/','DynaLoader'); |
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| 55 | print $head; |
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| 56 | |
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| 57 | foreach $_ (@exts){ |
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| 58 | my($pname) = canon('/', $_); |
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| 59 | my($mname, $cname); |
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| 60 | ($mname = $pname) =~ s!/!::!g; |
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| 61 | ($cname = $pname) =~ s!/!__!g; |
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[14544] | 62 | print "EXTERN_C void boot_${cname} (CV* cv);\n"; |
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[10723] | 63 | } |
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| 64 | |
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| 65 | my ($tail1,$tail2) = ( $tail =~ /\A(.*\n)(\s*\}.*)\Z/s ); |
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| 66 | print $tail1; |
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| 67 | |
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| 68 | print "\tchar *file = __FILE__;\n"; |
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| 69 | print "\tdXSUB_SYS;\n" if $] > 5.002; |
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| 70 | |
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| 71 | foreach $_ (@exts){ |
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| 72 | my($pname) = canon('/', $_); |
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| 73 | my($mname, $cname, $ccode); |
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| 74 | ($mname = $pname) =~ s!/!::!g; |
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| 75 | ($cname = $pname) =~ s!/!__!g; |
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| 76 | print "\t{\n"; |
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| 77 | if ($pname eq $dl){ |
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| 78 | # Must NOT install 'DynaLoader::boot_DynaLoader' as 'bootstrap'! |
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| 79 | # boot_DynaLoader is called directly in DynaLoader.pm |
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| 80 | $ccode = "\t/* DynaLoader is a special case */\n |
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| 81 | \tnewXS(\"${mname}::boot_${cname}\", boot_${cname}, file);\n"; |
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| 82 | print $ccode unless $SEEN{$ccode}++; |
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| 83 | } else { |
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| 84 | $ccode = "\tnewXS(\"${mname}::bootstrap\", boot_${cname}, file);\n"; |
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| 85 | print $ccode unless $SEEN{$ccode}++; |
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| 86 | } |
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| 87 | print "\t}\n"; |
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| 88 | } |
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| 89 | print $tail2; |
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| 90 | } |
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| 91 | |
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| 92 | sub canon{ |
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| 93 | my($as, @ext) = @_; |
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| 94 | foreach(@ext){ |
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| 95 | # might be X::Y or lib/auto/X/Y/Y.a |
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| 96 | next if s!::!/!g; |
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| 97 | s:^(lib|ext)/(auto/)?::; |
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| 98 | s:/\w+\.\w+$::; |
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| 99 | } |
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| 100 | grep(s:/:$as:, @ext) if ($as ne '/'); |
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| 101 | @ext; |
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| 102 | } |
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| 103 | |
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| 104 | 1; |
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| 105 | __END__ |
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| 106 | |
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| 107 | =head1 NAME |
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| 108 | |
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| 109 | ExtUtils::Miniperl, writemain - write the C code for perlmain.c |
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| 110 | |
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| 111 | =head1 SYNOPSIS |
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| 112 | |
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| 113 | C<use ExtUtils::Miniperl;> |
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| 114 | |
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| 115 | C<writemain(@directories);> |
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| 116 | |
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| 117 | =head1 DESCRIPTION |
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| 118 | |
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| 119 | This whole module is written when perl itself is built from a script |
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| 120 | called minimod.PL. In case you want to patch it, please patch |
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| 121 | minimod.PL in the perl distribution instead. |
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| 122 | |
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| 123 | writemain() takes an argument list of directories containing archive |
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| 124 | libraries that relate to perl modules and should be linked into a new |
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| 125 | perl binary. It writes to STDOUT a corresponding perlmain.c file that |
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| 126 | is a plain C file containing all the bootstrap code to make the |
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| 127 | modules associated with the libraries available from within perl. |
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| 128 | |
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| 129 | The typical usage is from within a Makefile generated by |
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| 130 | ExtUtils::MakeMaker. So under normal circumstances you won't have to |
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| 131 | deal with this module directly. |
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| 132 | |
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| 133 | =head1 SEE ALSO |
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| 134 | |
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| 135 | L<ExtUtils::MakeMaker> |
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| 136 | |
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| 137 | =cut |
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| 138 | |
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| 139 | END |
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