diff options
Diffstat (limited to 'gcc-4.4.3/libstdc++-v3/scripts/make_exports.pl')
| -rw-r--r-- | gcc-4.4.3/libstdc++-v3/scripts/make_exports.pl | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/gcc-4.4.3/libstdc++-v3/scripts/make_exports.pl b/gcc-4.4.3/libstdc++-v3/scripts/make_exports.pl deleted file mode 100644 index 7c9e4e31d..000000000 --- a/gcc-4.4.3/libstdc++-v3/scripts/make_exports.pl +++ /dev/null @@ -1,144 +0,0 @@ -#!/usr/bin/perl -w - -# This script takes two arguments, a version script and a dynamic library -# (in that order), and prints a list of symbols to be exported from the -# library. -# It expects a 'nm' with the POSIX '-P' option, but everyone has one of -# those, right? It also expects that symbol names have a leading underscore, -# which is somewhat less likely. - -use File::Glob ':glob'; -use FileHandle; -use IPC::Open2; - -# The glob patterns that are to be applied to the demangled name -my @cxx_globs = (); -# The glob patterns that apply directly to the name in the .o files -my @globs = (); -# The patterns for local variables (usually just '*'). -my @ignored = (); - -########## -# Fill in the various glob arrays. - -# The next pattern will go into this array. -my $glob = \@globs; -my $symvers = shift; - -open F,$symvers or die $!; - -while (<F>) { - chomp; - # Lines of the form '} SOME_VERSION_NAME_1.0;' - if (/^[ \t]*\}[ \tA-Z0-9_.a-z]*;[ \t]*$/) { - $glob = \@globs; - next; - } - # Comment and blank lines - next if (/^[ \t]*\#/); - next if (/^[ \t]*$/); - # Lines of the form 'SOME_VERSION_NAME_1.1 {' - next if (/^[A-Z0-9_. \t]*{$/); - # Ignore 'global:' - next if (/^[ \t]*global:$/); - # After 'local:', globs should be ignored, they won't be exported. - if (/^[ \t]*local:$/) { - $glob = \@ignored; - next; - } - # After 'extern "C++"', globs are C++ patterns - if (/^[ \t]*extern \"C\+\+\"[ \t]*$/) { - $glob = \@cxx_globs; - next; - } - # Catch globs. Note that '{}' is not allowed in globs by this script, - # so only '*' and '[]' are available. - if (/^[ \t]*([^ \t;{}#]+);?[ \t]*$/) { - my $ptn = $1; - # Turn the glob into a regex by replacing '*' with '.*'. - $ptn =~ s/\*/\.\*/g; - push @$glob,$ptn; - next; - } - # Important sanity check. This script can't handle lots of formats - # that GNU ld can, so be sure to error out if one is seen! - die "strange line `$_'"; -} -close F; - -# Make 'if (1)' for debugging. -if (0) { - print "cxx:\n"; - (printf "%s\n",$_) foreach (@cxx_globs); - print "globs:\n"; - (printf "%s\n", $_) foreach (@globs); - print "ignored:\n"; - (printf "%s\n", $_) foreach (@ignored); -} - -########## -# Combine the arrays into single regular expressions -# This cuts the time required from about 30 seconds to about 0.5 seconds. - -my $glob_regex = '^_(' . (join '|',@globs) . ')$'; -my $cxx_regex = (join '|',@cxx_globs); - -########## -# Get all the symbols from the library, match them, and add them to a hash. - -my %export_hash = (); -my $nm = $ENV{'NM_FOR_TARGET'} || "nm"; -# Process each symbol. -print STDERR $nm.' -P '.(join ' ',@ARGV).'|'; -open NM,$nm.' -P '.(join ' ',@ARGV).'|' or die $!; -# Talk to c++filt through a pair of file descriptors. -open2(*FILTIN, *FILTOUT, "c++filt -_") or die $!; -NAME: while (<NM>) { - my $i; - chomp; - - # nm prints out stuff at the start, ignore it. - next if (/^$/); - next if (/:$/); - # Ignore undefined and local symbols. - next if (/^([^ ]+) [Ua-z] /); - - # $sym is the name of the symbol, $noeh_sym is the same thing with - # any '.eh' suffix removed. - die "unknown nm output $_" if (! /^([^ ]+) [A-Z] /); - my $sym = $1; - my $noeh_sym = $sym; - $noeh_sym =~ s/\.eh$//; - - # Maybe it matches one of the patterns based on the symbol in the .o file. - if ($noeh_sym =~ /$glob_regex/) { - $export_hash{$sym} = 1; - next NAME; - } - - # No? Well, maybe its demangled form matches one of those patterns. - printf FILTOUT "%s\n",$noeh_sym; - my $dem = <FILTIN>; - chomp $dem; - if ($dem =~ /$cxx_regex/) { - $export_hash{$sym} = 2; - next NAME; - } - - # No? Well, then ignore it. -} -close NM or die "nm error"; -close FILTOUT or die "c++filt error"; -close FILTIN or die "c++filt error"; - -########## -# Print out the export file - -# Print information about generating this file -print "# This is a generated file.\n"; -print "# It was generated by:\n"; -printf "# %s %s %s\n", $0, $symvers, (join ' ',@ARGV); - -foreach my $i (keys %export_hash) { - printf "%s\n",$i or die; -} |