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From: Jan Kratochvil <jan.kratochvil@redhat.com>
To: Pedro Alves <palves@redhat.com>
Cc: Tristan Gingold <gingold@adacore.com>,
	       "gdb-patches@sourceware.org ml"
	<gdb-patches@sourceware.org>
Subject: Re: RFA: Try to include libunwind-ia64.h in libunwind-frame.h
Date: Mon, 13 Feb 2012 19:03:00 -0000	[thread overview]
Message-ID: <20120213190223.GA8851@host2.jankratochvil.net> (raw)
In-Reply-To: <4F395D17.5070303@redhat.com>

On Mon, 13 Feb 2012 19:57:27 +0100, Pedro Alves wrote:
> I don't understand why we ever include "libunwind.h" though.

> libunwind is only ever used by ia64 currently.

It is required for ia64 but it can be used even with non-ia64 archs.

I do not have it tested, though.  I will test it before a check-in.


> If some other target wanting to use libunwind shows up, then we'll need to
> include libunwind-fooarch.h instead

For native configuration libunwind.h includes the right libunwind-fooarch.h
for us.
	/usr/include/libunwind.h
	#if defined __arm__
	# include "libunwind-arm.h"
	#elif defined __hppa__
	# include "libunwind-hppa.h"
	[...]

The cross-build does not work for ia64 well this way, though.  So libunwind
for non-ia64 works even in the non-cross mode.  This is the part I did not
want to start implementing as it may get all more complex.


> IOW, "libunwind.h" will always be conceptually wrong for gdb.

libunwind has pretty active development, I can imaging libunwind developers
/ enthusiasts would like to use it for GDB on x86*.


Thanks,
Jan


  reply	other threads:[~2012-02-13 19:03 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-02 16:32 Tristan Gingold
2012-02-10 12:31 ` Jan Kratochvil
2012-02-10 13:15   ` Tristan Gingold
2012-02-10 13:21     ` Jan Kratochvil
2012-02-10 13:27     ` Joel Brobecker
2012-02-10 13:45       ` Tristan Gingold
2012-02-10 14:04   ` Tristan Gingold
2012-02-10 14:09     ` Jan Kratochvil
2012-02-10 14:14       ` Tristan Gingold
2012-02-10 18:27 ` Jan Kratochvil
2012-02-10 18:34   ` Pedro Alves
2012-02-10 18:44     ` Jan Kratochvil
2012-02-10 18:59       ` Pedro Alves
2012-02-10 19:38         ` Jan Kratochvil
2012-02-11 14:10     ` Jan Kratochvil
2012-02-13  8:41       ` Tristan Gingold
2012-02-13 18:58       ` Pedro Alves
2012-02-13 19:03         ` Jan Kratochvil [this message]
2012-02-13 19:20           ` Pedro Alves
2012-02-13 19:27             ` Jan Kratochvil
2012-02-13 20:05               ` Pedro Alves
2012-02-14  7:28                 ` Jan Kratochvil
2012-02-14 12:14                   ` Pedro Alves
2012-02-14 14:36                     ` Jan Kratochvil
2012-02-14 14:53                       ` Pedro Alves
2012-02-20 20:54                         ` Jan Kratochvil
2012-02-20 22:30                           ` Pedro Alves
2012-02-20 22:37                             ` Joel Brobecker
2012-02-20 22:39                               ` Joel Brobecker
2012-02-20 22:57                               ` Pedro Alves
2012-02-20 23:20                                 ` Joel Brobecker
2012-02-21  6:48                             ` Jan Kratochvil
2012-02-21 13:36                               ` Pedro Alves
2012-02-21 19:10                                 ` Tom Tromey
2012-02-22  7:56                                   ` Tristan Gingold
2012-02-22 14:52                                     ` Jan Kratochvil
2012-02-21 20:18                                 ` Jan Kratochvil
2012-02-21 20:43                                   ` Pedro Alves

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