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From: Andreas Schwab <schwab@suse.de>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: gdb@sourceware.org
Subject: Re: How to avoid stepping inside libpthread
Date: Wed, 11 Jul 2007 09:00:00 -0000	[thread overview]
Message-ID: <jelkdnfh81.fsf@sykes.suse.de> (raw)
In-Reply-To: <20070711.151820.55513191.nemoto@toshiba-tops.co.jp> (Atsushi 	Nemoto's message of "Wed\, 11 Jul 2007 15\:18\:20 +0900 \(JST\)")

Atsushi Nemoto <anemo@mba.ocn.ne.jp> writes:

> There is a LL/SC loop (atomic_decrement_and_test(&__nptl_nthreads))
> after the 0x2ab0ae88 in start_thread(), so it is not wonder the single
> stepping never ends (SC always fail due to a breakpoint exception).
>
>
> Are there any way to avoid falling into such situations?

See deal_with_atomic_sequence in rs6000-tdep.c, which tries to solve the
same issue.

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."


  reply	other threads:[~2007-07-11  9:00 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-11  6:18 Atsushi Nemoto
2007-07-11  9:00 ` Andreas Schwab [this message]
2007-07-12  2:15   ` Atsushi Nemoto
2007-07-12  6:31     ` Atsushi Nemoto
2007-07-12 11:10       ` Daniel Jacobowitz
2007-07-13  7:04         ` Atsushi Nemoto
2007-09-26 21:06           ` Daniel Jacobowitz
2007-07-11 11:40 ` Daniel Jacobowitz

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