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From: Andrew Cagney <ac131313@cygnus.com>
To: Christopher Faylor <cgf@redhat.com>
Cc: gdb-patches@sources.redhat.com
Subject: Re: [RFC] sigsetjmp/siglongjmp on cygwin -- problem tracked down
Date: Mon, 13 Aug 2001 19:40:00 -0000	[thread overview]
Message-ID: <3B788F78.8050005@cygnus.com> (raw)
In-Reply-To: <20010813222037.A20589@redhat.com>

> So, with the above buggy code, we'll eventually derefernce *catch_return[36]
> when we should be dereferencing (*catch_return)[36].
> 
> I'll fix cygwin.  How do we want to fix gdb?
> 
> I could add a define in setjmp.h like this:
> 
> #define WORKING_SETJMP 1


The BSD way of doing it was:

	#include <sys/param.h>
	#if BSD >= 199506
	... was this from the last bsd release ever ...
	#endf

While it leads to pretty obscure tests (like the above) it did make it 
possible to test for anything constrained to a specific release.

It may be easier to just tweek GDB so that:

    (NORETURN void) SIGLONGJMP (*catch_return, (int) reason);

is written more robustly as:

	SIGLONGJMP ((*catch_return), ((int) reason));

If CYGWIN has this bug, chance has it that some other OS will as well. 
Hmm, Macro's are (er never mind :-).

	Andrew


  parent reply	other threads:[~2001-08-13 19:40 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-08-01 14:01 [RFC] sigsetjmp/siglongjmp on cygwin Keith Seitz
     [not found] ` <s3iae1jjso2.fsf@soliton.wins.uva.nl>
2001-08-01 16:03   ` Keith Seitz
2001-08-01 23:57     ` Eli Zaretskii
2001-08-02 10:25       ` Andrew Cagney
2001-08-02 13:15         ` Mark Kettenis
2001-08-13 14:46           ` Jim Blandy
2001-08-13 15:12             ` Keith Seitz
2001-08-13 15:37               ` Andrew Cagney
2001-08-13 15:43                 ` Keith Seitz
2001-08-13 15:52                   ` Andrew Cagney
2001-08-13 16:27                     ` Keith Seitz
2001-08-13 16:32                       ` Christopher Faylor
     [not found]                         ` <20010813222037.A20589@redhat.com>
2001-08-13 19:40                           ` Andrew Cagney [this message]
2001-08-13 19:55                             ` [RFC] sigsetjmp/siglongjmp on cygwin -- problem tracked down Christopher Faylor
2001-08-13 20:10                               ` Daniel Jacobowitz
2001-08-13 20:18                                 ` [RFA] work around sigsetjmp/siglongjmp macro problems Christopher Faylor
2001-08-14  0:06                                   ` Eli Zaretskii
2001-08-14  7:40                                     ` Christopher Faylor
2001-08-14  9:34                                   ` Keith Seitz
2001-08-14 13:01                                     ` Elena Zannoni
2001-08-14 13:08                                       ` Christopher Faylor
2001-08-14 23:52                                         ` Eli Zaretskii
2001-08-14 23:49                                       ` Eli Zaretskii
2001-08-13 17:11                       ` [RFC] sigsetjmp/siglongjmp on cygwin Andrew Cagney
2001-08-13 17:23                         ` Keith Seitz
2001-08-03  1:33         ` Eli Zaretskii
2001-08-10  0:16           ` Andrew Cagney
2001-08-01 16:16   ` Andrew Cagney
2001-08-02 13:51     ` Christopher Faylor
2001-08-10  0:27 ` Andrew Cagney
2001-08-12 15:49   ` Ben Elliston
2001-08-13  2:03     ` Eli Zaretskii
2001-08-13 15:42       ` Andrew Cagney

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