From: Andreas Schwab <schwab@suse.de>
To: Steven Munroe <munroesj@us.ibm.com>
Cc: libc-hacker@sources.redhat.com, Alan Modra <amodra@bigpond.net.au>
Subject: Re: [PATCH] PPC32 cfi update part3
Date: Sun, 13 Aug 2006 08:15:00 -0000 [thread overview]
Message-ID: <je8xltm4qg.fsf@sykes.suse.de> (raw)
In-Reply-To: <43BC618A.1000006@us.ibm.com> (Steven Munroe's message of "Wed, 04 Jan 2006 18:00:10 -0600")
Steven Munroe <munroesj@us.ibm.com> writes:
> * sysdeps/powerpc/powerpc32/dl-trampoline.S (_dl_runtime_resolve,
> _dl_profile_resolve): Add CFI directives for stack and LR save.
> Save LR in LRSAVE of previous frame per ABI.
This breaks profiling. The caller of _mcount is supposed to store LR in
LRSAVE, and _mcount restores it from there, but LRSAVE gets clobbered by
the trampoline.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2006-08-13 8:15 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-04 23:53 Steven Munroe
2006-01-07 3:58 ` Ulrich Drepper
2006-08-13 8:15 ` Andreas Schwab [this message]
2006-08-13 9:43 ` Andreas Schwab
2006-08-14 22:20 ` Ulrich Drepper
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