From: Steven Rostedt <rostedt@goodmis.org>
To: Roland McGrath <roland@redhat.com>
Cc: Jason Baron <jbaron@redhat.com>,
linux-kernel@vger.kernel.org, mingo@elte.hu,
mathieu.desnoyers@polymtl.ca, tglx@linutronix.de, ak@suse.de,
rth@redhat.com, mhiramat@redhat.com
Subject: Re: [PATCH 2/4] jump label - base patch
Date: Sat, 26 Sep 2009 06:21:26 -0400 [thread overview]
Message-ID: <1253960486.12145.108.camel@frodo> (raw)
In-Reply-To: <20090925004938.9D85BE06@magilla.sf.frob.com>
On Thu, 2009-09-24 at 17:49 -0700, Roland McGrath wrote:
> > +#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
> > +#define __HAVE_ARCH_JUMP_LABEL
> > +#endif
>
> Put this in linux/compiler-gcc4.h (there only test __GNUC_MINOR__).
> If icc/whoever adds asm goto they can define it too.
We need to be careful here. This code also depends on the text_poke
implementation that is not defined for every arch.
The code around DEFINE_TRACE can be updated to test for
__HAVE_ARCH_JUMP_LABEL as well the config to know if we have text_poke.
-- Steve
next prev parent reply other threads:[~2009-09-26 10:22 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-24 23:17 [PATCH 0/4] jump label patches Jason Baron
2009-09-24 23:17 ` [PATCH 1/4] jump label - make init_kernel_text() global Jason Baron
2009-10-01 11:20 ` Ingo Molnar
2009-10-01 12:58 ` Mathieu Desnoyers
2009-10-01 20:39 ` Jason Baron
2009-10-03 10:43 ` Ingo Molnar
2009-10-03 12:39 ` Mathieu Desnoyers
2009-10-07 1:54 ` Steven Rostedt
2009-10-07 2:32 ` Mathieu Desnoyers
2009-10-07 3:10 ` Masami Hiramatsu
2009-10-07 3:23 ` Mathieu Desnoyers
2009-10-07 3:29 ` Mathieu Desnoyers
2009-10-07 12:56 ` Steven Rostedt
2009-10-07 13:35 ` Mathieu Desnoyers
2009-09-24 23:17 ` [PATCH 2/4] jump label - base patch Jason Baron
2009-09-25 0:49 ` Roland McGrath
2009-09-26 10:21 ` Steven Rostedt [this message]
2009-10-01 11:36 ` Ingo Molnar
2009-09-24 23:17 ` [PATCH 3/4] jump label - add module support Jason Baron
2009-09-24 23:18 ` [PATCH 4/4] jump label - tracepoint implementation Jason Baron
2009-10-06 5:39 ` [PATCH 0/4] jump label patches Roland McGrath
2009-10-06 14:07 ` Jason Baron
2009-10-06 23:24 ` Richard Henderson
2009-10-07 0:14 ` Roland McGrath
2009-10-07 15:35 ` Richard Henderson
2009-10-06 6:04 ` Roland McGrath
2009-10-06 14:09 ` Steven Rostedt
2009-10-06 14:13 ` Masami Hiramatsu
2009-10-06 14:30 ` Mathieu Desnoyers
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