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From: "Henderson, Stuart" <Stuart.Henderson@analog.com>
To: Ian Lance Taylor <iant@google.com>
Cc: "gcc-help@gcc.gnu.org" <gcc-help@gcc.gnu.org>
Subject: RE: Problem cross-compiling trunk for bfin
Date: Thu, 17 Feb 2011 11:37:00 -0000	[thread overview]
Message-ID: <05E9E85E39C35B4D96ED3A3190E35A109CAEF87A0F@LIMKCMBX1.ad.analog.com> (raw)
In-Reply-To: <mcrmxlv1t6x.fsf@google.com>

Bug 47779 has been added to the database

Thanks Ian.

Stu

-----Original Message-----
From: Ian Lance Taylor [mailto:iant@google.com]
Sent: 16 February 2011 23:00
To: Henderson, Stuart
Cc: gcc-help@gcc.gnu.org
Subject: Re: Problem cross-compiling trunk for bfin

"Henderson, Stuart" <Stuart.Henderson@analog.com> writes:

> r160579 | rsandifo | 2010-06-10 21:23:43 +0100 (Thu, 10 Jun 2010) | 7 lines
> gcc/
>     * configure.ac (tm_include_list): Add insn-constants.h.
>     * configure: Regenerate.
>     * Makefile.in (GTM_H): Move insn-constants.h here from...
>     (TM_H): ...here.
>     * mkconfig.sh: Remove special handling for insn-constants.h.
>
> The change moves the inclusion of "insn-constants.h" from being conditional on:
> #if defined IN_GCC && !defined GENERATOR_FILE && !defined USED_FOR_TARGET
> to just:
> #if defined IN_GCC
>
> This causes insn-constants.h to be included here which defines various register macros that can then clash with the enum (of registers in the gregset_t array) in uClibc's sys/ucontext.h.
>
> Although I've only hit this with bfin, it seems like it could easily hit other architectures.  Not having a deep enough understanding of the gcc ecosystem nor why the change was made, I was hoping someone could explain the best way to resolve this?

I doubt there is a clean way to solve this.  Probably the simplest way
is to rename the conflicting constants in gcc/config/bfin/*.

Please open a bug report about this.  See http://gcc.gnu.org/bugs/ .
Thanks.

Ian

      reply	other threads:[~2011-02-17 10:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-16 20:09 Henderson, Stuart
2011-02-16 23:02 ` Ian Lance Taylor
2011-02-17 11:37   ` Henderson, Stuart [this message]

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