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From: Jakub Jelinek <jakub@redhat.com>
To: Benjamin Herrenschmidt <benh@au1.ibm.com>
Cc: Deepak Bhole <dbhole@redhat.com>,
	linuxppc-dev list <linuxppc-dev@ozlabs.org>,
	Andrew Haley <aph-gcc@littlepinkcloud.COM>,
	Paul Mackerras <paulus@samba.org>,
	Alan Modra <amodra@bigpond.net.au>
Subject: Re: [PATCH] powerpc: Fix 64 bits vDSO dwarf info for CR register
Date: Wed, 17 Oct 2007 09:50:55 -0400	[thread overview]
Message-ID: <20071017135055.GP5451@devserv.devel.redhat.com> (raw)
In-Reply-To: <1192595210.11899.149.camel@pasglop>

On Wed, Oct 17, 2007 at 02:26:50PM +1000, Benjamin Herrenschmidt wrote:
> Unfortunately, a bug in gcc cause it to not quite work either, but that
> is being fixed separately with something around the lines of:
> 
> linux-unwind.h:
> 
>      fs->regs.reg[R_CR2].loc.offset = (long) &regs->ccr - new_cfa;
> +    /* CR? regs are just 32-bit and PPC is big-endian.  */
> +    fs->regs.reg[R_CR2].loc.offset += sizeof (long) - 4;

Small correction.  If vdso is present, then fixing the vdso is all that is
needed, the above mentioned code is used only if the vdso is not present
(or if glibc doesn't support the vdso).

	Jakub

  reply	other threads:[~2007-10-17 13:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-17  4:26 [PATCH] powerpc: Fix 64 bits vDSO dwarf info for CR register Benjamin Herrenschmidt
2007-10-17 13:50 ` Jakub Jelinek [this message]
2007-10-17 14:00   ` Andrew Haley
  -- strict thread matches above, loose matches on Subject: below --
2007-10-17  4:23 Benjamin Herrenschmidt

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