diff options
Diffstat (limited to 'scripts/reference_discarded.pl')
-rw-r--r-- | scripts/reference_discarded.pl | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/scripts/reference_discarded.pl b/scripts/reference_discarded.pl deleted file mode 100644 index 4ee6ab2..0000000 --- a/scripts/reference_discarded.pl +++ /dev/null @@ -1,112 +0,0 @@ -#!/usr/bin/perl -w -# -# reference_discarded.pl (C) Keith Owens 2001 <kaos@ocs.com.au> -# -# Released under GPL V2. -# -# List dangling references to vmlinux discarded sections. - -use strict; -die($0 . " takes no arguments\n") if($#ARGV >= 0); - -my %object; -my $object; -my $line; -my $ignore; -my $errorcount; - -$| = 1; - -# printf("Finding objects, "); -open(OBJDUMP_LIST, "find . -name '*.o' | xargs objdump -h |") || die "getting objdump list failed"; -while (defined($line = <OBJDUMP_LIST>)) { - chomp($line); - if ($line =~ /:\s+file format/) { - ($object = $line) =~ s/:.*//; - $object{$object}->{'module'} = 0; - $object{$object}->{'size'} = 0; - $object{$object}->{'off'} = 0; - } - if ($line =~ /^\s*\d+\s+\.modinfo\s+/) { - $object{$object}->{'module'} = 1; - } - if ($line =~ /^\s*\d+\s+\.comment\s+/) { - ($object{$object}->{'size'}, $object{$object}->{'off'}) = (split(' ', $line))[2,5]; - } -} -close(OBJDUMP_LIST); -# printf("%d objects, ", scalar keys(%object)); -$ignore = 0; -foreach $object (keys(%object)) { - if ($object{$object}->{'module'}) { - ++$ignore; - delete($object{$object}); - } -} -# printf("ignoring %d module(s)\n", $ignore); - -# Ignore conglomerate objects, they have been built from multiple objects and we -# only care about the individual objects. If an object has more than one GCC: -# string in the comment section then it is conglomerate. This does not filter -# out conglomerates that consist of exactly one object, can't be helped. - -# printf("Finding conglomerates, "); -$ignore = 0; -foreach $object (keys(%object)) { - if (exists($object{$object}->{'off'})) { - my ($off, $size, $comment, $l); - $off = hex($object{$object}->{'off'}); - $size = hex($object{$object}->{'size'}); - open(OBJECT, "<$object") || die "cannot read $object"; - seek(OBJECT, $off, 0) || die "seek to $off in $object failed"; - $l = read(OBJECT, $comment, $size); - die "read $size bytes from $object .comment failed" if ($l != $size); - close(OBJECT); - if ($comment =~ /GCC\:.*GCC\:/m || $object =~ /built-in\.o/) { - ++$ignore; - delete($object{$object}); - } - } -} -# printf("ignoring %d conglomerate(s)\n", $ignore); - -# printf("Scanning objects\n"); - -# Keith Ownes <kaos@sgi.com> commented: -# For our future {in}sanity, add a comment that this is the ppc .opd -# section, not the ia64 .opd section. -# ia64 .opd should not point to discarded sections. -$errorcount = 0; -foreach $object (keys(%object)) { - my $from; - open(OBJDUMP, "objdump -r $object|") || die "cannot objdump -r $object"; - while (defined($line = <OBJDUMP>)) { - chomp($line); - if ($line =~ /RELOCATION RECORDS FOR /) { - ($from = $line) =~ s/.*\[([^]]*).*/$1/; - } - if (($line =~ /\.text\.exit$/ || - $line =~ /\.exit\.text$/ || - $line =~ /\.data\.exit$/ || - $line =~ /\.exit\.data$/ || - $line =~ /\.exitcall\.exit$/) && - ($from !~ /\.text\.exit$/ && - $from !~ /\.exit\.text$/ && - $from !~ /\.data\.exit$/ && - $from !~ /\.opd$/ && - $from !~ /\.exit\.data$/ && - $from !~ /\.altinstructions$/ && - $from !~ /\.pdr$/ && - $from !~ /\.debug_.*$/ && - $from !~ /\.exitcall\.exit$/ && - $from !~ /\.eh_frame$/ && - $from !~ /\.stab$/)) { - printf("Error: %s %s refers to %s\n", $object, $from, $line); - $errorcount = $errorcount + 1; - } - } - close(OBJDUMP); -} -# printf("Done\n"); - -exit(0); |