From: Daniel Jacobowitz <drow@false.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: cagney@gnu.org, gdb-patches@sources.redhat.com
Subject: Re: [patch/rfc] Eliminate TARGET_HAS_HARDWARE_WATCHPOINTS
Date: Thu, 09 Sep 2004 03:53:00 -0000 [thread overview]
Message-ID: <20040909035336.GA30215@nevyn.them.org> (raw)
In-Reply-To: <01c4961e$Blat.v2.2.2$d00fd3e0@zahav.net.il>
On Thu, Sep 09, 2004 at 06:39:52AM +0300, Eli Zaretskii wrote:
> > Date: Wed, 8 Sep 2004 11:23:15 -0400
> > From: Daniel Jacobowitz <drow@false.org>
> > Cc: Andrew Cagney <cagney@gnu.org>, gdb-patches@sources.redhat.com
> >
> > Why should the macro matter for remote targets? We should ask the
> > target whether watchpoints are available.
>
> So you are suggesting to replace a configure-time test and the macro
> with a run-time test?
There are already some runtime tests for this. I don't know how well
they all work, but I thought they did. I never implemented watchpoints
for gdbserver, so I never tried them.
>
> > For cross-compiled build, autoconf should work just fine. Compile
> > tests are still available and you shouldn't be using run tests for this
> > sort of thing anyway.
>
> I don't think this kind of test can be done by compiling a program,
> but if you have a specific test in mind, please describe it.
>
> In any case, if what you suggest works, I agree to replacing the macro
> with these alternatives.
There are two cases:
- If we enabled support, GDB could not be compiled. This is amenable
to compile tests.
- If we enabled support, it would not work at runtime. This is
amenable only to runtime tests - either run during configure or run
during execution. I strongly believe the former are wrong in all
but exceptional cases.
--
Daniel Jacobowitz
next prev parent reply other threads:[~2004-09-09 3:53 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-09-05 13:59 Andrew Cagney
2004-09-06 5:03 ` Eli Zaretskii
2004-09-06 14:05 ` Andrew Cagney
2004-09-06 18:47 ` Eli Zaretskii
2004-09-07 21:20 ` Andrew Cagney
2004-09-08 3:51 ` Eli Zaretskii
2004-09-08 14:28 ` Andrew Cagney
2004-09-08 15:18 ` Eli Zaretskii
2004-09-08 15:23 ` Daniel Jacobowitz
2004-09-09 3:41 ` Eli Zaretskii
2004-09-09 3:53 ` Daniel Jacobowitz [this message]
2004-09-09 4:04 ` Eli Zaretskii
2004-09-09 12:47 ` Daniel Jacobowitz
2004-09-09 18:52 ` Eli Zaretskii
2004-09-12 16:33 ` Andrew Cagney
2004-09-12 18:42 ` Eli Zaretskii
2004-09-13 14:30 ` Andrew Cagney
2004-09-13 19:43 ` Eli Zaretskii
2004-09-13 20:48 ` Andrew Cagney
2004-09-15 7:20 ` Eli Zaretskii
2004-09-15 16:11 ` Andrew Cagney
2004-09-16 10:53 ` Eli Zaretskii
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