Ubuntu
clang package

clang -g dies with bogus assembler error: duplicate .debug_line sections

Bug #599485 reported by Anders Kaseorg on 2010-06-28

This bug affects 2 people

	Status	Importance	Assigned to
LLVM	Unknown	Unknown	llvm #6218
clang (Debian)	Fix Released	Unknown	debbugs #592012
clang (Ubuntu)	Fix Released	Medium	Unassigned

Bug Description

Binary package hint: binutils

$ echo 'int main(){}' > test.c
$ clang -g -c test.c
/tmp/cc-xPGs3W.s: Assembler messages:
/tmp/cc-xPGs3W.s:413: Fatal error: duplicate .debug_line sections
clang: error: assembler command failed with exit code 1 (use -v to see invocation)

http://llvm.org/bugs/show_bug.cgi?id=6218 says this is a binutils bug. (“… there's nothing wrong with having multiple .debug_line section directives in a single .s file. Compilers do this all the time.”) This assembler message does not exist in upstream binutils or in Debian; it was added by the Ubuntu patch binutils/debian/patches/214-binutils-group.patch.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: binutils 2.20.51.20100617-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-5.6-generic 2.6.35-rc3
Uname: Linux 2.6.35-5-generic x86_64
NonfreeKernelModules: openafs nvidia wl
Architecture: amd64
Date: Mon Jun 28 14:18:03 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release Candidate amd64 (20091020.3)
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: binutils

Tags:

Related branches

lp:debian/experimental/binutils

lp:ubuntu/maverick/clang

Revision history for this message

Anders Kaseorg (andersk) wrote on 2010-06-28:

Dependencies.txt Edit (567 bytes, text/plain; charset="utf-8")

Revision history for this message

Anders Kaseorg (andersk) wrote on 2010-06-28:

That Ubuntu patch (214-binutils-group.patch) was taken from http://sourceware.org/bugzilla/show_bug.cgi?id=10531 ; I’ve added a comment there.

Matthias Klose (doko) on 2010-07-10

Changed in binutils (Ubuntu):
importance:	Undecided → Medium
status:	New → In Progress

Revision history for this message

Launchpad Janitor (janitor) wrote on 2010-07-10:

This bug was fixed in the package binutils - 2.20.51.20100710-1ubuntu1

---------------
binutils (2.20.51.20100710-1ubuntu1) maverick; urgency=low

* Update HJ patches from binutils 2.20.51.0.10.

binutils (2.20.51.20100710-1) experimental; urgency=low

  * Snapshot, taken from the trunk 20100710.
    - Fix PR gas/10531. LP: #599485.
  * debian/rules: Introduce PF macros (Jim Heck). Closes: #588357.

  [ Marcin Juszkiewicz ]
  * Don't install documentation files in -cross packages. Closes: #586636.
  * Set sysroot to /usr/$(TARGET) for cross builds. LP: #598389.
-- Matthias Klose <email address hidden> Sat, 10 Jul 2010 11:42:27 +0200

Changed in binutils (Ubuntu):
status:	In Progress → Fix Released

Revision history for this message

Anders Kaseorg (andersk) wrote on 2010-07-10:

The problem is still there after upgrading to binutils 2.20.51.20100710-1ubuntu1. The upstreams for binutils and clang agree that this is a clang bug, so I’m reassigning to the clang package.

affects:	binutils (Ubuntu) → clang (Ubuntu)
Changed in clang (Ubuntu):
status:	Fix Released → New

Revision history for this message

Anton Korobeynikov (anton-korobeynikov) wrote on 2010-08-05:

The problem is fixed in clang mainline. So, it will definitely go into 2.8

Revision history for this message

Anders Kaseorg (andersk) wrote on 2010-08-06:

clang_2.7-0ubuntu2_lp599485.debdiff Edit (1.7 KiB, text/plain)

Here’s a debdiff with the patch from upstream. I’ve tested it in my PPA <https://launchpad.net/~anders-kaseorg/+archive/ppa> and it solves the problem.

Robert Sajdok (ris) on 2010-08-06

tags:

added: patch

Stefano Rivera (stefanor) on 2010-08-07

Changed in clang (Ubuntu):
status:	New → Fix Committed

Revision history for this message

Launchpad Janitor (janitor) wrote on 2010-08-07:

This bug was fixed in the package clang - 2.7-0ubuntu3

---------------
clang (2.7-0ubuntu3) maverick; urgency=low

  * debian/patches/0002-Dont-forward-any--g-options-to-gcc.patch: Take
    patch from upstream r110111 to fix “duplicate .debug_line sections”
    error with clang -g. (LP: #599485)
-- Anders Kaseorg <email address hidden> Fri, 06 Aug 2010 02:01:10 -0400