From: Pedro Alves <pedro@codesourcery.com>
To: gdb@sourceware.org
Cc: Yuri <yuri@rawbw.com>
Subject: Re: Why gdb-7.1 doesn't set hardware watchpoints on i7 CPU (amd64)?
Date: Fri, 01 Jul 2011 10:02:00 -0000 [thread overview]
Message-ID: <201107011102.09027.pedro@codesourcery.com> (raw)
In-Reply-To: <4E0D0957.6040003@rawbw.com>
On Friday 01 July 2011 00:40:07, Yuri wrote:
> This GDB was configured as "x86_64-unknown-freebsd8.2".
It doesn't looks like the x86-64/FreeBSD port knows about
hardware watchpoints. The 32-bit port seems to though:
$ grep i386_use_watchpoints *.c
amd64-linux-nat.c: i386_use_watchpoints (t);
go32-nat.c: i386_use_watchpoints (&go32_ops);
i386fbsd-nat.c: i386_use_watchpoints (t);
i386-linux-nat.c: i386_use_watchpoints (t);
i386-nat.c:i386_use_watchpoints (struct target_ops *t)
windows-nat.c: i386_use_watchpoints (&windows_ops);
The x86-64/FreeBSD target backend file is amd64fbsd-nat.c.
Try debugging gdb with itself, and put a breakpoint on
i386_use_watchpoints. If that isn't hit on gdb startup, then
the port definitely doesn't know about hardware watchpoints.
--
Pedro Alves
next prev parent reply other threads:[~2011-07-01 10:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-17 3:20 Yuri
2010-12-27 5:07 ` Paul Pluzhnikov
2011-06-30 22:31 ` Yuri
2011-06-30 22:50 ` Paul Pluzhnikov
2011-06-30 23:40 ` Yuri
2011-07-01 10:02 ` Pedro Alves [this message]
2011-06-30 22:27 ` Yuri
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