2002-02-27 22:06:03

by James Curbo

[permalink] [raw]
Subject: (2.5.5-dj2) still getting .text.exit linker errors

[note: I am not subscribed, please cc: me in replies]

When compiling 2.5.5-dj2, I am still getting a .text.exit linker error:

drivers/net/net.o(.data+0x1274): undefined reference to `local symbols
in discarded section .text.exit'

I am using Debian unstable, binutils 2.11.93.0.2:

ii binutils 2.11.93.0.2-2

I can get it to link if I follow the directions that the Debian
maintainer has been giving out (deleting the .text.exit line from
vmlinux.lds) but that isn't the right solution, and I don't have the
abilities to actually fix it. My ver_linux output is appeneded at the
end. Thanks in advance.

James

Linux carthage 2.5.5-dj2 #1 Wed Feb 27 01:08:00 CST 2002 i686 unknown

Gnu C 2.95.4
Gnu make 3.79.1
util-linux 2.11n
mount 2.11n
modutils 2.4.13
e2fsprogs 1.26
Linux C Library 2.2.5
Dynamic linker (ldd) 2.2.5
Procps 2.0.7
Net-tools 1.60
Console-tools 0.2.3
Sh-utils 2.0.11
Modules Loaded emu10k1 ac97_codec sound

--
James Curbo <[email protected]> <[email protected]>
Undergraduate Computer Science, Henderson State University
PGP Keys at <http://reddie.henderson.edu/~curboj/>
Public Keys: PGP - 1024/0x76E2061B GNUPG - 1024D/0x3EEA7288


2002-02-27 22:43:03

by Dave Jones

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Subject: Re: (2.5.5-dj2) still getting .text.exit linker errors

On Wed, Feb 27, 2002 at 04:01:38PM -0600, James Curbo wrote:
> drivers/net/net.o(.data+0x1274): undefined reference to `local symbols
> in discarded section .text.exit'

Can you grab http://kernelnewbies.org/scripts/reference_discarded.pl
and post the output ?

--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs

2002-02-27 22:54:19

by Keith Owens

[permalink] [raw]
Subject: Re: (2.5.5-dj2) still getting .text.exit linker errors

On Wed, 27 Feb 2002 16:01:38 -0600,
James Curbo <[email protected]> wrote:
>[note: I am not subscribed, please cc: me in replies]
>
>When compiling 2.5.5-dj2, I am still getting a .text.exit linker error:
>
>drivers/net/net.o(.data+0x1274): undefined reference to `local symbols
>in discarded section .text.exit'

Run this script to identify the offending object in net.o then contact
the object maintainer.


#!/usr/bin/perl -w
#
# reference_discarded.pl (C) Keith Owens 2001 <[email protected]>
#
# 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;

$| = 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) {
++$ignore;
delete($object{$object});
}
}
}
printf("ignoring %d conglomerate(s)\n", $ignore);

printf("Scanning objects\n");
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$/ ||
$line =~ /\.data\.exit$/ ||
$line =~ /\.exitcall\.exit$/) &&
($from !~ /\.text\.exit$/ &&
$from !~ /\.data\.exit$/ &&
$from !~ /\.exitcall\.exit$/)) {
printf("Error: %s %s refers to %s\n", $object, $from, $line);
}
}
close(OBJDUMP);
}
printf("Done\n");

2002-02-28 00:46:36

by James Curbo

[permalink] [raw]
Subject: Re: (2.5.5-dj2) still getting .text.exit linker errors

OK, here it is:

Finding objects, 513 objects, ignoring 0 module(s)
Finding conglomerates, ignoring 53 conglomerate(s)
Scanning objects
Error: ./drivers/net/de2104x.o .data refers to 00000074 R_386_32
.text.exit
Done

On Feb 27, Dave Jones wrote:
> On Wed, Feb 27, 2002 at 04:01:38PM -0600, James Curbo wrote:
> > drivers/net/net.o(.data+0x1274): undefined reference to `local symbols
> > in discarded section .text.exit'
>
> Can you grab http://kernelnewbies.org/scripts/reference_discarded.pl
> and post the output ?
>
> --
> | Dave Jones. http://www.codemonkey.org.uk
> | SuSE Labs

--
James Curbo <[email protected]> <[email protected]>
Undergraduate Computer Science, Henderson State University
PGP Keys at <http://reddie.henderson.edu/~curboj/>
Public Keys: PGP - 1024/0x76E2061B GNUPG - 1024D/0x3EEA7288