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 4ee6ab2135b3..000000000000 --- a/scripts/reference_discarded.pl +++ /dev/null | |||
| @@ -1,112 +0,0 @@ | |||
| 1 | #!/usr/bin/perl -w | ||
| 2 | # | ||
| 3 | # reference_discarded.pl (C) Keith Owens 2001 <kaos@ocs.com.au> | ||
| 4 | # | ||
| 5 | # Released under GPL V2. | ||
| 6 | # | ||
| 7 | # List dangling references to vmlinux discarded sections. | ||
| 8 | |||
| 9 | use strict; | ||
| 10 | die($0 . " takes no arguments\n") if($#ARGV >= 0); | ||
| 11 | |||
| 12 | my %object; | ||
| 13 | my $object; | ||
| 14 | my $line; | ||
| 15 | my $ignore; | ||
| 16 | my $errorcount; | ||
| 17 | |||
| 18 | $| = 1; | ||
| 19 | |||
| 20 | # printf("Finding objects, "); | ||
| 21 | open(OBJDUMP_LIST, "find . -name '*.o' | xargs objdump -h |") || die "getting objdump list failed"; | ||
| 22 | while (defined($line = <OBJDUMP_LIST>)) { | ||
| 23 | chomp($line); | ||
| 24 | if ($line =~ /:\s+file format/) { | ||
| 25 | ($object = $line) =~ s/:.*//; | ||
| 26 | $object{$object}->{'module'} = 0; | ||
| 27 | $object{$object}->{'size'} = 0; | ||
| 28 | $object{$object}->{'off'} = 0; | ||
| 29 | } | ||
| 30 | if ($line =~ /^\s*\d+\s+\.modinfo\s+/) { | ||
| 31 | $object{$object}->{'module'} = 1; | ||
| 32 | } | ||
| 33 | if ($line =~ /^\s*\d+\s+\.comment\s+/) { | ||
| 34 | ($object{$object}->{'size'}, $object{$object}->{'off'}) = (split(' ', $line))[2,5]; | ||
| 35 | } | ||
| 36 | } | ||
| 37 | close(OBJDUMP_LIST); | ||
| 38 | # printf("%d objects, ", scalar keys(%object)); | ||
| 39 | $ignore = 0; | ||
| 40 | foreach $object (keys(%object)) { | ||
| 41 | if ($object{$object}->{'module'}) { | ||
| 42 | ++$ignore; | ||
| 43 | delete($object{$object}); | ||
| 44 | } | ||
| 45 | } | ||
| 46 | # printf("ignoring %d module(s)\n", $ignore); | ||
| 47 | |||
| 48 | # Ignore conglomerate objects, they have been built from multiple objects and we | ||
| 49 | # only care about the individual objects. If an object has more than one GCC: | ||
| 50 | # string in the comment section then it is conglomerate. This does not filter | ||
| 51 | # out conglomerates that consist of exactly one object, can't be helped. | ||
| 52 | |||
| 53 | # printf("Finding conglomerates, "); | ||
| 54 | $ignore = 0; | ||
| 55 | foreach $object (keys(%object)) { | ||
| 56 | if (exists($object{$object}->{'off'})) { | ||
| 57 | my ($off, $size, $comment, $l); | ||
| 58 | $off = hex($object{$object}->{'off'}); | ||
| 59 | $size = hex($object{$object}->{'size'}); | ||
| 60 | open(OBJECT, "<$object") || die "cannot read $object"; | ||
| 61 | seek(OBJECT, $off, 0) || die "seek to $off in $object failed"; | ||
| 62 | $l = read(OBJECT, $comment, $size); | ||
| 63 | die "read $size bytes from $object .comment failed" if ($l != $size); | ||
| 64 | close(OBJECT); | ||
| 65 | if ($comment =~ /GCC\:.*GCC\:/m || $object =~ /built-in\.o/) { | ||
| 66 | ++$ignore; | ||
| 67 | delete($object{$object}); | ||
| 68 | } | ||
| 69 | } | ||
| 70 | } | ||
| 71 | # printf("ignoring %d conglomerate(s)\n", $ignore); | ||
| 72 | |||
| 73 | # printf("Scanning objects\n"); | ||
| 74 | |||
| 75 | # Keith Ownes <kaos@sgi.com> commented: | ||
| 76 | # For our future {in}sanity, add a comment that this is the ppc .opd | ||
| 77 | # section, not the ia64 .opd section. | ||
| 78 | # ia64 .opd should not point to discarded sections. | ||
| 79 | $errorcount = 0; | ||
| 80 | foreach $object (keys(%object)) { | ||
| 81 | my $from; | ||
| 82 | open(OBJDUMP, "objdump -r $object|") || die "cannot objdump -r $object"; | ||
| 83 | while (defined($line = <OBJDUMP>)) { | ||
| 84 | chomp($line); | ||
| 85 | if ($line =~ /RELOCATION RECORDS FOR /) { | ||
| 86 | ($from = $line) =~ s/.*\[([^]]*).*/$1/; | ||
| 87 | } | ||
| 88 | if (($line =~ /\.text\.exit$/ || | ||
| 89 | $line =~ /\.exit\.text$/ || | ||
| 90 | $line =~ /\.data\.exit$/ || | ||
| 91 | $line =~ /\.exit\.data$/ || | ||
| 92 | $line =~ /\.exitcall\.exit$/) && | ||
| 93 | ($from !~ /\.text\.exit$/ && | ||
| 94 | $from !~ /\.exit\.text$/ && | ||
| 95 | $from !~ /\.data\.exit$/ && | ||
| 96 | $from !~ /\.opd$/ && | ||
| 97 | $from !~ /\.exit\.data$/ && | ||
| 98 | $from !~ /\.altinstructions$/ && | ||
| 99 | $from !~ /\.pdr$/ && | ||
| 100 | $from !~ /\.debug_.*$/ && | ||
| 101 | $from !~ /\.exitcall\.exit$/ && | ||
| 102 | $from !~ /\.eh_frame$/ && | ||
| 103 | $from !~ /\.stab$/)) { | ||
| 104 | printf("Error: %s %s refers to %s\n", $object, $from, $line); | ||
| 105 | $errorcount = $errorcount + 1; | ||
| 106 | } | ||
| 107 | } | ||
| 108 | close(OBJDUMP); | ||
| 109 | } | ||
| 110 | # printf("Done\n"); | ||
| 111 | |||
| 112 | exit(0); | ||
