Debian Bug report logs - #663711
Buggy integer parsing: 1UL recognised as unsigned int

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Vincent Lefevre <vincent@vinc17.net>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: tcc: Buggy left shift on x86_64

Date: Tue, 13 Mar 2012 15:13:56 +0100

Package: tcc
Version: 0.9.26~git20120104.83d57c0-4
Severity: important

On x86_64 (but not on i386), the left shift is buggy:

#include <stdio.h>
#include <limits.h>

#define SH (CHAR_BIT * sizeof(unsigned long) / 2)

int main (void)
{
  unsigned long m;
  int sh = SH;

  printf ("SH = %d\n", (int) SH);
  m = 1UL << SH;
  printf ("m = 0x%lx\n", m);
  m = 1UL << sh;
  printf ("m = 0x%lx\n", m);
  m = 1UL << (SH/2);
  m *= m;
  printf ("m = 0x%lx\n", m);

  return 0;
}

gives:

SH = 32
m = 0x0
m = 0x1
m = 0x100000000

The correct result (as obtained with gcc) is:

SH = 32
m = 0x100000000
m = 0x100000000
m = 0x100000000

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-2-amd64 (SMP w/8 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages tcc depends on:
ii  dpkg          1.16.1.2
ii  install-info  4.13a.dfsg.1-8
ii  libc6         2.13-27

Versions of packages tcc recommends:
ii  libc6-dev [libc-dev]  2.13-27

tcc suggests no packages.

-- no debconf information

Message #14 received at 663711@bugs.debian.org (full text, mbox, reply):

From: "Thomas Preud'homme" <robotux@celest.fr>

To: control@bugs.debian.org

Subject: tagging 663711, bug 663711 is forwarded to tinycc-devel@nongnu.org

Date: Tue, 13 Mar 2012 16:32:03 +0100

tags 663711 + upstream
forwarded 663711 tinycc-devel@nongnu.org
thanks

Thanks for the report and for forwarding it to the upstream mailing list. The
bug is not Debian specific so I hope they will fix it because I am quite busy
these days. If not, I will take a look at it as soon as possible.

Best regards.

Message #22 received at 663711@bugs.debian.org (full text, mbox, reply):

From: "Thomas Preud'homme" <robotux@celest.fr>

To: control@bugs.debian.org

Cc: 663711@bugs.debian.org

Subject: retitle 663711 to Buggy integer parsing: 1UL recognised as unsigned int

Date: Tue, 13 Mar 2012 18:23:32 +0100

retitle 663711 Buggy integer parsing: 1UL recognised as unsigned int
thanks

The bug is actually a bad parsing of integer constant: 1UL is recognised as
unsigned int.

Message #33 received at 663711-close@bugs.debian.org (full text, mbox, reply):

From: Thomas Preud'homme <robotux@celest.fr>

To: 663711-close@bugs.debian.org

Subject: Bug#663711: fixed in tcc 0.9.26~git20120104.83d57c0-5

Date: Wed, 21 Mar 2012 13:49:14 +0000

Source: tcc
Source-Version: 0.9.26~git20120104.83d57c0-5

We believe that the bug you reported is fixed in the latest version of
tcc, which is due to be installed in the Debian FTP archive:

libtcc-dev_0.9.26~git20120104.83d57c0-5_amd64.deb
  to main/t/tcc/libtcc-dev_0.9.26~git20120104.83d57c0-5_amd64.deb
tcc_0.9.26~git20120104.83d57c0-5.debian.tar.gz
  to main/t/tcc/tcc_0.9.26~git20120104.83d57c0-5.debian.tar.gz
tcc_0.9.26~git20120104.83d57c0-5.dsc
  to main/t/tcc/tcc_0.9.26~git20120104.83d57c0-5.dsc
tcc_0.9.26~git20120104.83d57c0-5_amd64.deb
  to main/t/tcc/tcc_0.9.26~git20120104.83d57c0-5_amd64.deb



A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 663711@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Thomas Preud'homme <robotux@celest.fr> (supplier of updated tcc package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.8
Date: Thu, 15 Mar 2012 00:39:47 +0100
Source: tcc
Binary: tcc libtcc-dev
Architecture: source amd64
Version: 0.9.26~git20120104.83d57c0-5
Distribution: unstable
Urgency: low
Maintainer: Aurélien GÉRÔME <ag@debian.org>
Changed-By: Thomas Preud'homme <robotux@celest.fr>
Description: 
 libtcc-dev - Fast library for dynamic code generation
 tcc        - Small ANSI C compiler
Closes: 663692 663693 663711
Changes: 
 tcc (0.9.26~git20120104.83d57c0-5) unstable; urgency=low
 .
   * Document that -b is only available on i386 (Closes: #663692).
   * Correctly parse unsigned long constants (ex: 1UL) on amd64
     (Closes: #663711).
   * Support arguments to linker options to be passed in separate linker
     options as in -Wl,-rpath -Wl,<somedir> (Closes: #663693).
Checksums-Sha1: 
 d2487f61e66ec8700e7ab4db912f39c7d98a01e6 2127 tcc_0.9.26~git20120104.83d57c0-5.dsc
 2417870d63165e998b63763e3cc95ce25d5880af 14884 tcc_0.9.26~git20120104.83d57c0-5.debian.tar.gz
 ee65afe0ed7595795fd95445f50ba7a9e14a6b87 155748 tcc_0.9.26~git20120104.83d57c0-5_amd64.deb
 99b7bb8d81d71ba9e4d30afa642353be23674539 135052 libtcc-dev_0.9.26~git20120104.83d57c0-5_amd64.deb
Checksums-Sha256: 
 34f69018bef2e29ddb06e9e31267706661bd669f9dda7d30a449cd63b7b98c9f 2127 tcc_0.9.26~git20120104.83d57c0-5.dsc
 ef51bb7bb7ccae4ca9bddab71940f455c3ead99bb7d72fb7ea27c3698198b2d4 14884 tcc_0.9.26~git20120104.83d57c0-5.debian.tar.gz
 a1f7e89c7815711f0cfc87fb7c0419dcd65a692d3ca854fc6fecb1590e02a234 155748 tcc_0.9.26~git20120104.83d57c0-5_amd64.deb
 ec3a27f64619dadd832d4b73258203b0d8b03c7a089171cd71ee910483b26115 135052 libtcc-dev_0.9.26~git20120104.83d57c0-5_amd64.deb
Files: 
 cd44b2e1b6404f00aee4025842a367b8 2127 devel optional tcc_0.9.26~git20120104.83d57c0-5.dsc
 f813ac97ebd2f51004f1d4437ff77986 14884 devel optional tcc_0.9.26~git20120104.83d57c0-5.debian.tar.gz
 05204d7d3e38661a944f0daf5d1d0648 155748 devel optional tcc_0.9.26~git20120104.83d57c0-5_amd64.deb
 969f84195ea25e4bd39d2cff817ce86b 135052 libdevel optional libtcc-dev_0.9.26~git20120104.83d57c0-5_amd64.deb

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