From: Alan Modra <amodra@bigpond.net.au>
To: Richard Henderson <rth@redhat.com>
Cc: binutils@sources.redhat.com, mostrows@watson.ibm.com
Subject: Re: powerpc64-linux hack
Date: Tue, 12 Aug 2003 00:27:00 -0000 [thread overview]
Message-ID: <20030812002416.GB27145@bubble.sa.bigpond.net.au> (raw)
In-Reply-To: <20030811185734.GB24357@redhat.com>
On Mon, Aug 11, 2003 at 11:57:34AM -0700, Richard Henderson wrote:
> On Mon, Aug 11, 2003 at 08:59:52PM +0930, Alan Modra wrote:
> > + && strcmp (h->root.root.string,
> > + ".__libc_start_main") == 0)
>
> You really should use a special branch relocation instead.
> This could be used elsewhere as well, no doubt.
Yeah, well, it didn't seem worth it. The "right" fix in this instance
is to simply add a nop after the "bl .__libc_start_main" call in crt1.o.
It's not that the nop is needed as a placeholder to restore r2 because
we never return, but that the bl,nop sequence is used for extern calls
and is recognized by the linker.
--
Alan Modra
IBM OzLabs - Linux Technology Centre
prev parent reply other threads:[~2003-08-12 0:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-11 11:29 Alan Modra
2003-08-11 18:11 ` Ulrich Drepper
2003-08-12 0:25 ` Alan Modra
2003-08-11 18:57 ` Richard Henderson
2003-08-12 0:27 ` Alan Modra [this message]
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