From:	earnie_boyd AT yahoo DOT com (Earnie Boyd)
Subject:	Re: B19: gdb on NT - cannot hit breakpoints on other threads
20 Apr 1998 19:02:19 -0700 :
Message-ID:	<19980420110950.13903.rocketmail.cygnus.gnu-win32@send1b.yahoomail.com>
Reply-To:	earnie_boyd AT yahoo DOT com
Mime-Version:	1.0
To:	gwpilz AT pobox DOT com
Cc:	gw32 <gnu-win32 AT cygnus DOT com>

The cygwinb19.dll is not Thread Safe.  If you wish to use thread you
need to go get the Mingw32 gcc compiler which uses the native
CRTDLL.DLL which is thread safe.  You can find the Mingw32 gcc
compiler via Colin Peters' page.  URL is listed below.

---"Gilbert W. Pilz Jr" <gwpilz AT pobox DOT com> wrote:
>
> Has anyone else seen this problem ?
> 
> I'm trying to debug a simple program that creates multiple threads
using
> CreateThread(). I find that I can set breakpoints on the starting
routines
> of the sub-threads, but that when I hit them I get a SIGTRAP instead
of
> normal breakpoint behavior. Attempting to continue after the SIGTRAP
always
> results in a segmentation violation.
> 
> Is this a problem with gdb or something I'm doing wrong ?
> 
> 
> 
> 
> Gilbert W. Pilz Jr.
> Systems Software Consultant
> gwpilz AT pobox DOT com
> www.scruz.net/~gwpilz/

-        \\||//
---o0O0--Earnie--0O0o----
--earnie_boyd AT yahoo DOT com--
------ooo0O--O0ooo-------

Check out these great gnu-win32 related sites:
ftp://ftp.cygnus.com/pub/gnu-win32/latest/                  (ftp site)
http://www.cygnus.com/pubs/gnupro/                    (Comercial Page)
http://www.cygnus.com/misc/gnu-win32/                   (Project Page)
http://www.cygnus.com/ml/gnu-win32                     (Mail Archives)
http://www.itribe.net/virtunix/winhelp-man-pages/     (HTML Man Pages)
http://www.lexa.ru/sos                               (Sergey Okhapkin)
ftp://www.lexa.ru/pub/domestic/sos/                (Sergey's ftp site)
http://www.fu.is.saga-u.ac.jp/~colin/gcc.html (Colin Peters - Mingw32)
http://www.xraylith.wisc.edu/~khan/software/gnu-win32/    (Mumit Khan)
http://gnu-win32.paranoia.ru                   (Chuck Bogorad's ports)
http://www.bestweb.net/~aka/gnu-win32/  (GNU-Win32 Bash Configuration)
http://rcw.home.ml.org/                  (Rob Warner - software ports)
http://www.wenet.net/~garbanzo/gnuwin32/     (more - software portals)
http://www.wenet.net/~garbanzo/gnuwin32/rpm   (Redhat Package Manager)
http://www.parallax.co.uk/~andyp/index_text.html  (Andy Piper - ports)
http://www.tiac.net/users/cgf     (Christopher Faylor - package ports)
ftp://ftp.franken.de/pub/win32/develop/gnuwin32/       (German mirror)
http://www.dol.ru/users/valtul      (Valery Tulnikov - software ports)

Help for Win32 Beginners: 
 http://www.relisoft.com
 http://www.program.com/resources/win32.html

DISCLAIMER: These links or links from these pages to other sites do
not constitute an endorsement of any entities, advertisers, products 
or services therein. I am not responsible for and do not control or 
monitor the content of these sites or the accuracy of information 
found therein.

-------------------- IMPORTANT UPGRADE NOTICE ------------------------
You should get the following to update your cygwinb19 package:

Sergey Okhapkin's coolview package which contains an updated 
cygwinb19.dll.  (Yes, even if you've already downloaded the b19.1 
update from the Cygnus Site).

Mumit Khan's compilation of EGCS for the cygwinb19.dll; especially if 
your using the C++ compiler.  The current version of the compiler that 
comes with the tools have lots of problems that have been fixed with 
the EGCS version.  This is a drop-in replacement for the GCC toolset.

URL's are listed above.
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