diff options
author | Todd C. Miller <millert@cvs.openbsd.org> | 1999-04-29 22:42:18 +0000 |
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committer | Todd C. Miller <millert@cvs.openbsd.org> | 1999-04-29 22:42:18 +0000 |
commit | 37583d269f066aa8aa04ea18126b188d12257e6d (patch) | |
tree | bba3141cc21b941e00df1c922f6b91f28d81a28a /gnu/usr.bin/perl/ext/DynaLoader | |
parent | d8fdfa5c3dd1aecb5a53cab412e78ab3b5c9833c (diff) |
perl5.005_03
Diffstat (limited to 'gnu/usr.bin/perl/ext/DynaLoader')
-rw-r--r-- | gnu/usr.bin/perl/ext/DynaLoader/DynaLoader_pm.PL | 730 | ||||
-rw-r--r-- | gnu/usr.bin/perl/ext/DynaLoader/dl_beos.xs | 115 | ||||
-rw-r--r-- | gnu/usr.bin/perl/ext/DynaLoader/dl_mpeix.xs | 129 |
3 files changed, 974 insertions, 0 deletions
diff --git a/gnu/usr.bin/perl/ext/DynaLoader/DynaLoader_pm.PL b/gnu/usr.bin/perl/ext/DynaLoader/DynaLoader_pm.PL new file mode 100644 index 00000000000..cf7d7085bc8 --- /dev/null +++ b/gnu/usr.bin/perl/ext/DynaLoader/DynaLoader_pm.PL @@ -0,0 +1,730 @@ + +use Config; + +sub to_string { + my ($value) = @_; + $value =~ s/\\/\\\\'/g; + $value =~ s/'/\\'/g; + return "'$value'"; +} + +unlink "DynaLoader.pm" if -f "DynaLoader.pm"; +open OUT, ">DynaLoader.pm" or die $!; +print OUT <<'EOT'; + +# Generated from DynaLoader.pm.PL (resolved %Config::Config values) + +package DynaLoader; + +# And Gandalf said: 'Many folk like to know beforehand what is to +# be set on the table; but those who have laboured to prepare the +# feast like to keep their secret; for wonder makes the words of +# praise louder.' + +# (Quote from Tolkien sugested by Anno Siegel.) +# +# See pod text at end of file for documentation. +# See also ext/DynaLoader/README in source tree for other information. +# +# Tim.Bunce@ig.co.uk, August 1994 + +$VERSION = $VERSION = "1.03"; # avoid typo warning + +require AutoLoader; +*AUTOLOAD = \&AutoLoader::AUTOLOAD; + +# The following require can't be removed during maintenance +# releases, sadly, because of the risk of buggy code that does +# require Carp; Carp::croak "..."; without brackets dying +# if Carp hasn't been loaded in earlier compile time. :-( +# We'll let those bugs get found on the development track. +require Carp if $] < 5.00450; + + +# enable debug/trace messages from DynaLoader perl code +$dl_debug = $ENV{PERL_DL_DEBUG} || 0 unless defined $dl_debug; + +# +# Flags to alter dl_load_file behaviour. Assigned bits: +# 0x01 make symbols available for linking later dl_load_file's. +# (only known to work on Solaris 2 using dlopen(RTLD_GLOBAL)) +# (ignored under VMS; effect is built-in to image linking) +# +# This is called as a class method $module->dl_load_flags. The +# definition here will be inherited and result on "default" loading +# behaviour unless a sub-class of DynaLoader defines its own version. +# + +sub dl_load_flags { 0x00 } + +# ($dl_dlext, $dlsrc) +# = @Config::Config{'dlext', 'dlsrc'}; +EOT + +print OUT " (\$dl_dlext, \$dlsrc) = (", + to_string($Config::Config{'dlext'}), ",", + to_string($Config::Config{'dlsrc'}), ")\n;" ; + +print OUT <<'EOT'; + +# Some systems need special handling to expand file specifications +# (VMS support by Charles Bailey <bailey@HMIVAX.HUMGEN.UPENN.EDU>) +# See dl_expandspec() for more details. Should be harmless but +# inefficient to define on systems that don't need it. +$do_expand = $Is_VMS = $^O eq 'VMS'; + +@dl_require_symbols = (); # names of symbols we need +@dl_resolve_using = (); # names of files to link with +@dl_library_path = (); # path to look for files +@dl_librefs = (); # things we have loaded +@dl_modules = (); # Modules we have loaded + +# This is a fix to support DLD's unfortunate desire to relink -lc +@dl_resolve_using = dl_findfile('-lc') if $dlsrc eq "dl_dld.xs"; + +# Initialise @dl_library_path with the 'standard' library path +# for this platform as determined by Configure + +# push(@dl_library_path, split(' ', $Config::Config{'libpth'}); +EOT + +print OUT "push(\@dl_library_path, split(' ', ", + to_string($Config::Config{'libpth'}), "));\n"; + +print OUT <<'EOT'; + +# Add to @dl_library_path any extra directories we can gather from +# environment variables. So far LD_LIBRARY_PATH is the only known +# variable used for this purpose. Others may be added later. +push(@dl_library_path, split(/:/, $ENV{LD_LIBRARY_PATH})) + if $ENV{LD_LIBRARY_PATH}; + + +# No prizes for guessing why we don't say 'bootstrap DynaLoader;' here. +boot_DynaLoader('DynaLoader') if defined(&boot_DynaLoader) && + !defined(&dl_load_file); + + +if ($dl_debug) { + print STDERR "DynaLoader.pm loaded (@INC, @dl_library_path)\n"; + print STDERR "DynaLoader not linked into this perl\n" + unless defined(&boot_DynaLoader); +} + +1; # End of main code + + +sub croak { require Carp; Carp::croak(@_) } + +# The bootstrap function cannot be autoloaded (without complications) +# so we define it here: + +sub bootstrap { + # use local vars to enable $module.bs script to edit values + local(@args) = @_; + local($module) = $args[0]; + local(@dirs, $file); + + unless ($module) { + require Carp; + Carp::confess("Usage: DynaLoader::bootstrap(module)"); + } + + # A common error on platforms which don't support dynamic loading. + # Since it's fatal and potentially confusing we give a detailed message. + croak("Can't load module $module, dynamic loading not available in this perl.\n". + " (You may need to build a new perl executable which either supports\n". + " dynamic loading or has the $module module statically linked into it.)\n") + unless defined(&dl_load_file); + + my @modparts = split(/::/,$module); + my $modfname = $modparts[-1]; + + # Some systems have restrictions on files names for DLL's etc. + # mod2fname returns appropriate file base name (typically truncated) + # It may also edit @modparts if required. + $modfname = &mod2fname(\@modparts) if defined &mod2fname; + + my $modpname = join('/',@modparts); + + print STDERR "DynaLoader::bootstrap for $module ", + "(auto/$modpname/$modfname.$dl_dlext)\n" if $dl_debug; + + foreach (@INC) { + chop($_ = VMS::Filespec::unixpath($_)) if $Is_VMS; + my $dir = "$_/auto/$modpname"; + next unless -d $dir; # skip over uninteresting directories + + # check for common cases to avoid autoload of dl_findfile + my $try = "$dir/$modfname.$dl_dlext"; + last if $file = ($do_expand) ? dl_expandspec($try) : (-f $try && $try); + + # no luck here, save dir for possible later dl_findfile search + push @dirs, $dir; + } + # last resort, let dl_findfile have a go in all known locations + $file = dl_findfile(map("-L$_",@dirs,@INC), $modfname) unless $file; + + croak("Can't locate loadable object for module $module in \@INC (\@INC contains: @INC)") + unless $file; # wording similar to error from 'require' + + my $bootname = "boot_$module"; + $bootname =~ s/\W/_/g; + @dl_require_symbols = ($bootname); + + # Execute optional '.bootstrap' perl script for this module. + # The .bs file can be used to configure @dl_resolve_using etc to + # match the needs of the individual module on this architecture. + my $bs = $file; + $bs =~ s/(\.\w+)?$/\.bs/; # look for .bs 'beside' the library + if (-s $bs) { # only read file if it's not empty + print STDERR "BS: $bs ($^O, $dlsrc)\n" if $dl_debug; + eval { do $bs; }; + warn "$bs: $@\n" if $@; + } + + # Many dynamic extension loading problems will appear to come from + # this section of code: XYZ failed at line 123 of DynaLoader.pm. + # Often these errors are actually occurring in the initialisation + # C code of the extension XS file. Perl reports the error as being + # in this perl code simply because this was the last perl code + # it executed. + + my $libref = dl_load_file($file, $module->dl_load_flags) or + croak("Can't load '$file' for module $module: ".dl_error()."\n"); + + push(@dl_librefs,$libref); # record loaded object + + my @unresolved = dl_undef_symbols(); + if (@unresolved) { + require Carp; + Carp::carp("Undefined symbols present after loading $file: @unresolved\n"); + } + + my $boot_symbol_ref = dl_find_symbol($libref, $bootname) or + croak("Can't find '$bootname' symbol in $file\n"); + + my $xs = dl_install_xsub("${module}::bootstrap", $boot_symbol_ref, $file); + + push(@dl_modules, $module); # record loaded module + + # See comment block above + &$xs(@args); +} + + +#sub _check_file { # private utility to handle dl_expandspec vs -f tests +# my($file) = @_; +# return $file if (!$do_expand && -f $file); # the common case +# return $file if ( $do_expand && ($file=dl_expandspec($file))); +# return undef; +#} + + +# Let autosplit and the autoloader deal with these functions: +__END__ + + +sub dl_findfile { + # Read ext/DynaLoader/DynaLoader.doc for detailed information. + # This function does not automatically consider the architecture + # or the perl library auto directories. + my (@args) = @_; + my (@dirs, $dir); # which directories to search + my (@found); # full paths to real files we have found +EOT + +print OUT ' my $dl_ext= ' . to_string($Config::Config{'dlext'}) . + "; # \$Config::Config{'dlext'} suffix for perl extensions\n"; +print OUT ' my $dl_so = ' . to_string($Config::Config{'so'}) . + "; # \$Config::Config{'so'} suffix for shared libraries\n"; + +print OUT <<'EOT'; + + print STDERR "dl_findfile(@args)\n" if $dl_debug; + + # accumulate directories but process files as they appear + arg: foreach(@args) { + # Special fast case: full filepath requires no search + if ($Is_VMS && m%[:>/\]]% && -f $_) { + push(@found,dl_expandspec(VMS::Filespec::vmsify($_))); + last arg unless wantarray; + next; + } + elsif (m:/: && -f $_ && !$do_expand) { + push(@found,$_); + last arg unless wantarray; + next; + } + + # Deal with directories first: + # Using a -L prefix is the preferred option (faster and more robust) + if (m:^-L:) { s/^-L//; push(@dirs, $_); next; } + + # Otherwise we try to try to spot directories by a heuristic + # (this is a more complicated issue than it first appears) + if (m:/: && -d $_) { push(@dirs, $_); next; } + + # VMS: we may be using native VMS directry syntax instead of + # Unix emulation, so check this as well + if ($Is_VMS && /[:>\]]/ && -d $_) { push(@dirs, $_); next; } + + # Only files should get this far... + my(@names, $name); # what filenames to look for + if (m:-l: ) { # convert -lname to appropriate library name + s/-l//; + push(@names,"lib$_.$dl_so"); + push(@names,"lib$_.a"); + } else { # Umm, a bare name. Try various alternatives: + # these should be ordered with the most likely first + push(@names,"$_.$dl_ext") unless m/\.$dl_ext$/o; + push(@names,"$_.$dl_so") unless m/\.$dl_so$/o; + push(@names,"lib$_.$dl_so") unless m:/:; + push(@names,"$_.a") if !m/\.a$/ and $dlsrc eq "dl_dld.xs"; + push(@names, $_); + } + foreach $dir (@dirs, @dl_library_path) { + next unless -d $dir; + chop($dir = VMS::Filespec::unixpath($dir)) if $Is_VMS; + foreach $name (@names) { + my($file) = "$dir/$name"; + print STDERR " checking in $dir for $name\n" if $dl_debug; + $file = ($do_expand) ? dl_expandspec($file) : (-f $file && $file); + #$file = _check_file($file); + if ($file) { + push(@found, $file); + next arg; # no need to look any further + } + } + } + } + if ($dl_debug) { + foreach(@dirs) { + print STDERR " dl_findfile ignored non-existent directory: $_\n" unless -d $_; + } + print STDERR "dl_findfile found: @found\n"; + } + return $found[0] unless wantarray; + @found; +} + + +sub dl_expandspec { + my($spec) = @_; + # Optional function invoked if DynaLoader.pm sets $do_expand. + # Most systems do not require or use this function. + # Some systems may implement it in the dl_*.xs file in which case + # this autoload version will not be called but is harmless. + + # This function is designed to deal with systems which treat some + # 'filenames' in a special way. For example VMS 'Logical Names' + # (something like unix environment variables - but different). + # This function should recognise such names and expand them into + # full file paths. + # Must return undef if $spec is invalid or file does not exist. + + my $file = $spec; # default output to input + + if ($Is_VMS) { # dl_expandspec should be defined in dl_vms.xs + require Carp; + Carp::croak("dl_expandspec: should be defined in XS file!\n"); + } else { + return undef unless -f $file; + } + print STDERR "dl_expandspec($spec) => $file\n" if $dl_debug; + $file; +} + +sub dl_find_symbol_anywhere +{ + my $sym = shift; + my $libref; + foreach $libref (@dl_librefs) { + my $symref = dl_find_symbol($libref,$sym); + return $symref if $symref; + } + return undef; +} + +=head1 NAME + +DynaLoader - Dynamically load C libraries into Perl code + +dl_error(), dl_findfile(), dl_expandspec(), dl_load_file(), dl_find_symbol(), dl_find_symbol_anywhere(), dl_undef_symbols(), dl_install_xsub(), dl_load_flags(), bootstrap() - routines used by DynaLoader modules + +=head1 SYNOPSIS + + package YourPackage; + require DynaLoader; + @ISA = qw(... DynaLoader ...); + bootstrap YourPackage; + + # optional method for 'global' loading + sub dl_load_flags { 0x01 } + + +=head1 DESCRIPTION + +This document defines a standard generic interface to the dynamic +linking mechanisms available on many platforms. Its primary purpose is +to implement automatic dynamic loading of Perl modules. + +This document serves as both a specification for anyone wishing to +implement the DynaLoader for a new platform and as a guide for +anyone wishing to use the DynaLoader directly in an application. + +The DynaLoader is designed to be a very simple high-level +interface that is sufficiently general to cover the requirements +of SunOS, HP-UX, NeXT, Linux, VMS and other platforms. + +It is also hoped that the interface will cover the needs of OS/2, NT +etc and also allow pseudo-dynamic linking (using C<ld -A> at runtime). + +It must be stressed that the DynaLoader, by itself, is practically +useless for accessing non-Perl libraries because it provides almost no +Perl-to-C 'glue'. There is, for example, no mechanism for calling a C +library function or supplying arguments. A C::DynaLib module +is available from CPAN sites which performs that function for some +common system types. + +DynaLoader Interface Summary + + @dl_library_path + @dl_resolve_using + @dl_require_symbols + $dl_debug + @dl_librefs + @dl_modules + Implemented in: + bootstrap($modulename) Perl + @filepaths = dl_findfile(@names) Perl + $flags = $modulename->dl_load_flags Perl + $symref = dl_find_symbol_anywhere($symbol) Perl + + $libref = dl_load_file($filename, $flags) C + $symref = dl_find_symbol($libref, $symbol) C + @symbols = dl_undef_symbols() C + dl_install_xsub($name, $symref [, $filename]) C + $message = dl_error C + +=over 4 + +=item @dl_library_path + +The standard/default list of directories in which dl_findfile() will +search for libraries etc. Directories are searched in order: +$dl_library_path[0], [1], ... etc + +@dl_library_path is initialised to hold the list of 'normal' directories +(F</usr/lib>, etc) determined by B<Configure> (C<$Config{'libpth'}>). This should +ensure portability across a wide range of platforms. + +@dl_library_path should also be initialised with any other directories +that can be determined from the environment at runtime (such as +LD_LIBRARY_PATH for SunOS). + +After initialisation @dl_library_path can be manipulated by an +application using push and unshift before calling dl_findfile(). +Unshift can be used to add directories to the front of the search order +either to save search time or to override libraries with the same name +in the 'normal' directories. + +The load function that dl_load_file() calls may require an absolute +pathname. The dl_findfile() function and @dl_library_path can be +used to search for and return the absolute pathname for the +library/object that you wish to load. + +=item @dl_resolve_using + +A list of additional libraries or other shared objects which can be +used to resolve any undefined symbols that might be generated by a +later call to load_file(). + +This is only required on some platforms which do not handle dependent +libraries automatically. For example the Socket Perl extension +library (F<auto/Socket/Socket.so>) contains references to many socket +functions which need to be resolved when it's loaded. Most platforms +will automatically know where to find the 'dependent' library (e.g., +F</usr/lib/libsocket.so>). A few platforms need to be told the +location of the dependent library explicitly. Use @dl_resolve_using +for this. + +Example usage: + + @dl_resolve_using = dl_findfile('-lsocket'); + +=item @dl_require_symbols + +A list of one or more symbol names that are in the library/object file +to be dynamically loaded. This is only required on some platforms. + +=item @dl_librefs + +An array of the handles returned by successful calls to dl_load_file(), +made by bootstrap, in the order in which they were loaded. +Can be used with dl_find_symbol() to look for a symbol in any of +the loaded files. + +=item @dl_modules + +An array of module (package) names that have been bootstrap'ed. + +=item dl_error() + +Syntax: + + $message = dl_error(); + +Error message text from the last failed DynaLoader function. Note +that, similar to errno in unix, a successful function call does not +reset this message. + +Implementations should detect the error as soon as it occurs in any of +the other functions and save the corresponding message for later +retrieval. This will avoid problems on some platforms (such as SunOS) +where the error message is very temporary (e.g., dlerror()). + +=item $dl_debug + +Internal debugging messages are enabled when $dl_debug is set true. +Currently setting $dl_debug only affects the Perl side of the +DynaLoader. These messages should help an application developer to +resolve any DynaLoader usage problems. + +$dl_debug is set to C<$ENV{'PERL_DL_DEBUG'}> if defined. + +For the DynaLoader developer/porter there is a similar debugging +variable added to the C code (see dlutils.c) and enabled if Perl was +built with the B<-DDEBUGGING> flag. This can also be set via the +PERL_DL_DEBUG environment variable. Set to 1 for minimal information or +higher for more. + +=item dl_findfile() + +Syntax: + + @filepaths = dl_findfile(@names) + +Determine the full paths (including file suffix) of one or more +loadable files given their generic names and optionally one or more +directories. Searches directories in @dl_library_path by default and +returns an empty list if no files were found. + +Names can be specified in a variety of platform independent forms. Any +names in the form B<-lname> are converted into F<libname.*>, where F<.*> is +an appropriate suffix for the platform. + +If a name does not already have a suitable prefix and/or suffix then +the corresponding file will be searched for by trying combinations of +prefix and suffix appropriate to the platform: "$name.o", "lib$name.*" +and "$name". + +If any directories are included in @names they are searched before +@dl_library_path. Directories may be specified as B<-Ldir>. Any other +names are treated as filenames to be searched for. + +Using arguments of the form C<-Ldir> and C<-lname> is recommended. + +Example: + + @dl_resolve_using = dl_findfile(qw(-L/usr/5lib -lposix)); + + +=item dl_expandspec() + +Syntax: + + $filepath = dl_expandspec($spec) + +Some unusual systems, such as VMS, require special filename handling in +order to deal with symbolic names for files (i.e., VMS's Logical Names). + +To support these systems a dl_expandspec() function can be implemented +either in the F<dl_*.xs> file or code can be added to the autoloadable +dl_expandspec() function in F<DynaLoader.pm>. See F<DynaLoader.pm> for +more information. + +=item dl_load_file() + +Syntax: + + $libref = dl_load_file($filename, $flags) + +Dynamically load $filename, which must be the path to a shared object +or library. An opaque 'library reference' is returned as a handle for +the loaded object. Returns undef on error. + +The $flags argument to alters dl_load_file behaviour. +Assigned bits: + + 0x01 make symbols available for linking later dl_load_file's. + (only known to work on Solaris 2 using dlopen(RTLD_GLOBAL)) + (ignored under VMS; this is a normal part of image linking) + +(On systems that provide a handle for the loaded object such as SunOS +and HPUX, $libref will be that handle. On other systems $libref will +typically be $filename or a pointer to a buffer containing $filename. +The application should not examine or alter $libref in any way.) + +This is the function that does the real work. It should use the +current values of @dl_require_symbols and @dl_resolve_using if required. + + SunOS: dlopen($filename) + HP-UX: shl_load($filename) + Linux: dld_create_reference(@dl_require_symbols); dld_link($filename) + NeXT: rld_load($filename, @dl_resolve_using) + VMS: lib$find_image_symbol($filename,$dl_require_symbols[0]) + +(The dlopen() function is also used by Solaris and some versions of +Linux, and is a common choice when providing a "wrapper" on other +mechanisms as is done in the OS/2 port.) + +=item dl_loadflags() + +Syntax: + + $flags = dl_loadflags $modulename; + +Designed to be a method call, and to be overridden by a derived class +(i.e. a class which has DynaLoader in its @ISA). The definition in +DynaLoader itself returns 0, which produces standard behavior from +dl_load_file(). + +=item dl_find_symbol() + +Syntax: + + $symref = dl_find_symbol($libref, $symbol) + +Return the address of the symbol $symbol or C<undef> if not found. If the +target system has separate functions to search for symbols of different +types then dl_find_symbol() should search for function symbols first and +then other types. + +The exact manner in which the address is returned in $symref is not +currently defined. The only initial requirement is that $symref can +be passed to, and understood by, dl_install_xsub(). + + SunOS: dlsym($libref, $symbol) + HP-UX: shl_findsym($libref, $symbol) + Linux: dld_get_func($symbol) and/or dld_get_symbol($symbol) + NeXT: rld_lookup("_$symbol") + VMS: lib$find_image_symbol($libref,$symbol) + + +=item dl_find_symbol_anywhere() + +Syntax: + + $symref = dl_find_symbol_anywhere($symbol) + +Applies dl_find_symbol() to the members of @dl_librefs and returns +the first match found. + +=item dl_undef_symbols() + +Example + + @symbols = dl_undef_symbols() + +Return a list of symbol names which remain undefined after load_file(). +Returns C<()> if not known. Don't worry if your platform does not provide +a mechanism for this. Most do not need it and hence do not provide it, +they just return an empty list. + + +=item dl_install_xsub() + +Syntax: + + dl_install_xsub($perl_name, $symref [, $filename]) + +Create a new Perl external subroutine named $perl_name using $symref as +a pointer to the function which implements the routine. This is simply +a direct call to newXSUB(). Returns a reference to the installed +function. + +The $filename parameter is used by Perl to identify the source file for +the function if required by die(), caller() or the debugger. If +$filename is not defined then "DynaLoader" will be used. + + +=item bootstrap() + +Syntax: + +bootstrap($module) + +This is the normal entry point for automatic dynamic loading in Perl. + +It performs the following actions: + +=over 8 + +=item * + +locates an auto/$module directory by searching @INC + +=item * + +uses dl_findfile() to determine the filename to load + +=item * + +sets @dl_require_symbols to C<("boot_$module")> + +=item * + +executes an F<auto/$module/$module.bs> file if it exists +(typically used to add to @dl_resolve_using any files which +are required to load the module on the current platform) + +=item * + +calls dl_load_flags() to determine how to load the file. + +=item * + +calls dl_load_file() to load the file + +=item * + +calls dl_undef_symbols() and warns if any symbols are undefined + +=item * + +calls dl_find_symbol() for "boot_$module" + +=item * + +calls dl_install_xsub() to install it as "${module}::bootstrap" + +=item * + +calls &{"${module}::bootstrap"} to bootstrap the module (actually +it uses the function reference returned by dl_install_xsub for speed) + +=back + +=back + + +=head1 AUTHOR + +Tim Bunce, 11 August 1994. + +This interface is based on the work and comments of (in no particular +order): Larry Wall, Robert Sanders, Dean Roehrich, Jeff Okamoto, Anno +Siegel, Thomas Neumann, Paul Marquess, Charles Bailey, myself and others. + +Larry Wall designed the elegant inherited bootstrap mechanism and +implemented the first Perl 5 dynamic loader using it. + +Solaris global loading added by Nick Ing-Simmons with design/coding +assistance from Tim Bunce, January 1996. + +=cut +EOT + +close OUT or die $!; + diff --git a/gnu/usr.bin/perl/ext/DynaLoader/dl_beos.xs b/gnu/usr.bin/perl/ext/DynaLoader/dl_beos.xs new file mode 100644 index 00000000000..42a27cb1f17 --- /dev/null +++ b/gnu/usr.bin/perl/ext/DynaLoader/dl_beos.xs @@ -0,0 +1,115 @@ +/* + * dl_beos.xs, by Tom Spindler + * based on dl_dlopen.xs, by Paul Marquess + * $Id:$ + */ + +#include "EXTERN.h" +#include "perl.h" +#include "XSUB.h" + +#include <be/kernel/image.h> +#include <OS.h> +#include <stdlib.h> +#include <limits.h> + +#define dlerror() strerror(errno) + +#include "dlutils.c" /* SaveError() etc */ + +static void +dl_private_init() +{ + (void)dl_generic_private_init(); +} + +MODULE = DynaLoader PACKAGE = DynaLoader + +BOOT: + (void)dl_private_init(); + + +void * +dl_load_file(filename, flags=0) + char * filename + int flags + CODE: +{ image_id bogo; + char *path; + path = malloc(PATH_MAX); + if (*filename != '/') { + getcwd(path, PATH_MAX); + strcat(path, "/"); + strcat(path, filename); + } else { + strcpy(path, filename); + } + + DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "dl_load_file(%s,%x):\n", path, flags)); + bogo = load_add_on(path); + DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), " libref=%lx\n", (unsigned long) RETVAL)); + ST(0) = sv_newmortal() ; + if (bogo < 0) { + SaveError("%s", strerror(bogo)); + PerlIO_printf(PerlIO_stderr(), "load_add_on(%s) : %d (%s)\n", path, bogo, strerror(bogo)); + } else { + RETVAL = (void *) bogo; + sv_setiv( ST(0), (IV)RETVAL); + } + free(path); +} + +void * +dl_find_symbol(libhandle, symbolname) + void * libhandle + char * symbolname + CODE: + status_t retcode; + void *adr = 0; +#ifdef DLSYM_NEEDS_UNDERSCORE + symbolname = form("_%s", symbolname); +#endif + RETVAL = NULL; + DLDEBUG(2, PerlIO_printf(PerlIO_stderr(), + "dl_find_symbol(handle=%lx, symbol=%s)\n", + (unsigned long) libhandle, symbolname)); + retcode = get_image_symbol((image_id) libhandle, symbolname, + B_SYMBOL_TYPE_TEXT, (void **) &adr); + RETVAL = adr; + DLDEBUG(2, PerlIO_printf(PerlIO_stderr(), + " symbolref = %lx\n", (unsigned long) RETVAL)); + ST(0) = sv_newmortal() ; + if (RETVAL == NULL) { + SaveError("%s", strerror(retcode)) ; + PerlIO_printf(PerlIO_stderr(), "retcode = %p (%s)\n", retcode, strerror(retcode)); + } else + sv_setiv( ST(0), (IV)RETVAL); + + +void +dl_undef_symbols() + PPCODE: + + + +# These functions should not need changing on any platform: + +void +dl_install_xsub(perl_name, symref, filename="$Package") + char * perl_name + void * symref + char * filename + CODE: + DLDEBUG(2,PerlIO_printf(PerlIO_stderr(), "dl_install_xsub(name=%s, symref=%lx)\n", + perl_name, (unsigned long) symref)); + ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)_((CV *)))symref, filename))); + + +char * +dl_error() + CODE: + RETVAL = LastError ; + OUTPUT: + RETVAL + +# end. diff --git a/gnu/usr.bin/perl/ext/DynaLoader/dl_mpeix.xs b/gnu/usr.bin/perl/ext/DynaLoader/dl_mpeix.xs new file mode 100644 index 00000000000..4cc07ec4c3c --- /dev/null +++ b/gnu/usr.bin/perl/ext/DynaLoader/dl_mpeix.xs @@ -0,0 +1,129 @@ +/* + * Author: Mark Klein (mklein@dis.com) + * Version: 2.1, 1996/07/25 + * Version: 2.2, 1997/09/25 Mark Bixby (markb@cccd.edu) + * Version: 2.3, 1998/11/19 Mark Bixby (markb@cccd.edu) + */ + +#include "EXTERN.h" +#include "perl.h" +#include "XSUB.h" + +#ifdef __GNUC__ +extern void HPGETPROCPLABEL( int parms, + char * procname, + int * plabel, + int * status, + char * firstfile, + int casesensitive, + int symboltype, + int * datasize, + int position, + int searchpath, + int binding); +#else +#pragma intrinsic HPGETPROCPLABEL +#endif +#include "dlutils.c" /* for SaveError() etc */ + +typedef struct { + char filename[PATH_MAX + 3]; + } t_mpe_dld, *p_mpe_dld; + +static AV *dl_resolve_using = Nullav; + +static void +dl_private_init() +{ + (void)dl_generic_private_init(); + dl_resolve_using = perl_get_av("DynaLoader::dl_resolve_using", 0x4); +} + +MODULE = DynaLoader PACKAGE = DynaLoader + +BOOT: + (void)dl_private_init(); + +void * +dl_load_file(filename, flags=0) + char * filename + int flags + PREINIT: + char buf[PATH_MAX + 3]; + p_mpe_dld obj = NULL; + int i; + CODE: + DLDEBUG(1,PerlIO_printf(PerlIO_stderr(), "dl_load_file(%s,%x):\n", filename, +flags)); + if (flags & 0x01) + warn("Can't make loaded symbols global on this platform while loading %s +",filename); + obj = (p_mpe_dld) safemalloc(sizeof(t_mpe_dld)); + memzero(obj, sizeof(t_mpe_dld)); + if (filename[0] != '/') + { + getcwd(buf,sizeof(buf)); + sprintf(obj->filename," %s/%s ",buf,filename); + } + else + sprintf(obj->filename," %s ",filename); + + DLDEBUG(2,PerlIO_printf(PerlIO_stderr()," libref=%x\n", obj)); + + ST(0) = sv_newmortal() ; + if (obj == NULL) + SaveError("%s",Strerror(errno)); + else + sv_setiv( ST(0), (IV)obj); + +void * +dl_find_symbol(libhandle, symbolname) + void * libhandle + char * symbolname + CODE: + int datalen; + p_mpe_dld obj = (p_mpe_dld) libhandle; + char symname[PATH_MAX + 3]; + void * symaddr = NULL; + int status; + DLDEBUG(2,PerlIO_printf(PerlIO_stderr(),"dl_find_symbol(handle=%x, symbol=%s)\n", + libhandle, symbolname)); + ST(0) = sv_newmortal() ; + errno = 0; + + sprintf(symname, " %s ", symbolname); + HPGETPROCPLABEL(8, symname, &symaddr, &status, obj->filename, 1, + 0, &datalen, 1, 0, 0); + + DLDEBUG(2,PerlIO_printf(PerlIO_stderr()," symbolref(PROCEDURE) = %x, status=%x\n", symaddr, status)); + + if (status != 0) { + SaveError("%s",(errno) ? Strerror(errno) : "Symbol not found") ; + } else { + sv_setiv( ST(0), (IV)symaddr); + } + +void +dl_undef_symbols() + PPCODE: + +# These functions should not need changing on any platform: + +void +dl_install_xsub(perl_name, symref, filename="$Package") + char * perl_name + void * symref + char * filename + CODE: + DLDEBUG(2,PerlIO_printf(PerlIO_stderr(),"dl_install_xsub(name=%s, symref=%x)\n", + perl_name, symref)); + ST(0)=sv_2mortal(newRV((SV*)newXS(perl_name, (void(*)())symref, filename))); + +char * +dl_error() + CODE: + RETVAL = LastError ; + OUTPUT: + RETVAL + +# end. |