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ports/138481: lang/tcc: tcc compiled executables segfault

From:gonebsd <gonebsd@gmail.com>
Date:Wed, 2 Sep 2009 12:33:26 GMT
Subject:lang/tcc: tcc compiled executables segfault
Send-pr version:www-3.1

Number:138481
Category:ports
Synopsis:lang/tcc: tcc compiled executables segfault
Severity:serious
Priority:medium
Responsible:dinoex@FreeBSD.org
State:analyzed
Class:sw-bug
Arrival-Date:Wed Sep 02 12:40:06 UTC 2009
Closed-Date:
Last-Modified:Sun Sep 06 10:31:16 CEST 2009
Originator:gonebsd
Release:FreeBSD 7.2-RELEASE-p3 i386

Organization:
 
Environment:
 
Description:
Every executable compiled using tcc segfaults. Interestingly,
if the "-run" is used, the program executes as expected. See
the "how to repeat the problem" below.

I tried tcc version 0.9.24 (via pkg_add) and 0.9.25 (via ports,
using gcc 4.2.1) with the same results.

This seems to be FreeBSD specific since I cannot reproduce this
on Linux (Arch, with gcc 4.4.1) at all.
How-To-Repeat:
echo 'main(){puts("hello");}' | tcc -o output - && ./output
Segmentation fault (core dumped)

And with "-run":
echo 'main(){puts("hello");}' | tcc -run -
hello
Fix:
Release-Note:
 
Audit-Trail:
Responsible Changed
From-To:freebsd-ports-bugs->dinoex
By:edwin
When:Wed Sep 2 12:40:16 UTC 2009
Why:Over to maintainer (via the GNATS Auto Assign Tool)

State Changed
From-To:open->analyzed
By:dinoex
When:Sun Sep 6 10:23:02 CEST 2009
Why:Verfied, the executables are not valid for FreeBSD 6 or FreeBSD 7
even ldd crashes on analyzing the executabe.
The problem is known upstream, but no patch availible:
http://www.mail-archive.com/tinycc-devel@nongnu.org/msg00129.html
---------
Sergey Lyubka
Sat, 23 Jul 2005 05:44:45 -0700
tcc builds ELF executable in the way not understood by FreeBSD.
There is no quick fix for that, afaik.
ELF executable linkage part of tcc must be adopted for
building native FreeBSD exe-s. However, building Linux executables and linking
them against /usr/compat/linux libraries might work.
I spent some time before, trying to make 'native linkage' work on FreeBSD,
but not finished the work yet. It is half-way complete. Simple programs do
execute, more complex ones coredump.
---------
Patches welcome.

Unformatted:
 
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