Mail Archives: cygwin/1998/12/10/05:46:44
> -----Original Message-----
> From: Tim Harding [SMTP:tjh AT quadstone DOT com]
> Sent: Tuesday, December 08, 1998 14:37
> To: gnu-win32 AT cygnus DOT com
> Cc: felix AT laas DOT fr
> Subject: Re: b19 SIGSEGV in _size_of_stack_reserve
>
> > Trying to run a pgrm I compiled under b19, I am getting an error. Under
GDB,
> > it
> > get
> >
> > SIGSEGV
> > 0x100451 _size_of_stack_reserve
> >
> > It looks like a stack pb... any idea?
>
> Hi Felix
>
> I have a similar problem having compiled IVtools.
> I run the code and it falls over in
> _size_of_stack_reserve. Did you find an answer?
>
> I am compiling with b20 but linking with a
> the standard libX11 (X11R6.3) which was built
> with b19. Therefore it's loading the cygwin DLL twice (under different
> names), and I did wonder
> if that was causing problems.
Yes; it should be that which cause problems. The problem usually comes from
some memory block that get allocated by the malloc in one DLL and deallocated
by the malloc in the other one (you get exactly the same problem if your
program is for some reason using CRTDLL and MSVCRT, and for example you get
strdup() from one dll and free() from the other.
This bug is quite complicated, as the source code seems perfectly correct. To
find out if that's the problem try
cygcheck yourprogram.exe
or
objdump -p yourprogram.exe
If in the output you get references to two different cygwin DLLs or to CRTDLL
and MSVCRTxx, then most probably the problem is there...
BTW, when you have such a problem could anyone precise at least the version of
tools used and the flags passed to the compiler? it helps a lot understand the
problems.
Hope this helps,
Bernard
>
> -----
> See the original message at http://www.egroups.com/list/gnu-win32/?start=2370
> -
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------------------------------------------------------------------------------
Bernard Dautrevaux
Microprocess Ingéniérie
97 bis, rue de Colombes
92400 COURBEVOIE
FRANCE
Tel: +33 (0) 1 47 68 80 80
Fax: +33 (0) 1 47 88 97 85
e-mail: b. dautrevaux AT usa DOT net
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