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Re: [PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
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From:
Scott Wood <scottwood@...>
To: Olof Johansson <olof@...>
Cc: <linux-kernel@...>, <grundler@...>, <kyle@...>, <linuxppc-dev@...>, <lethal@...>, <akpm@...>
Subject:
Re: [PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
Date: Thursday, October 11, 2007 - 3:55 pm
On Thu, Oct 11, 2007 at 12:14:13PM -0500, Olof Johansson wrote:
quoted text
> Not using the ppc-specific WARN_ON/BUG_ON constructs actually saves about > 4K text on a ppc64_defconfig. The main reason seems to be that prepping > the arguments to the conditional trap instructions is more work than > just doing a compare and branch.
It'd be nice if we could get GCC to generate bug table entries for __builtin_trap(); that way we could use GCC's ability to put arbitrary conditions in the trap instruction. -Scott -
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Messages in current thread:
[PATCH 1/2] bug.h: Introduce HAVE_ARCH_WARN
, Olof Johansson
, (Thu Oct 11, 1:12 pm)
[PATCH v2] [1/2] bug.h: Remove HAVE_ARCH_BUG.* / HAVE_ARCH_W...
, Olof Johansson
, (Thu Oct 18, 10:03 pm)
Re: [PATCH 1/2] bug.h: Introduce HAVE_ARCH_WARN
, Andrew Morton
, (Thu Oct 18, 6:17 pm)
Re: [PATCH 1/2] bug.h: Introduce HAVE_ARCH_WARN
, Olof Johansson
, (Thu Oct 18, 6:34 pm)
Re: [PATCH 1/2] bug.h: Introduce HAVE_ARCH_WARN
, Paul Mundt
, (Thu Oct 11, 10:53 pm)
Re: [PATCH 1/2] bug.h: Introduce HAVE_ARCH_WARN
, Kyle McMartin
, (Thu Oct 11, 1:20 pm)
[PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
, Olof Johansson
, (Thu Oct 11, 1:14 pm)
[PATCH v2] [2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
, Olof Johansson
, (Thu Oct 18, 10:03 pm)
Re: [PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
, Paul Mackerras
, (Thu Oct 11, 9:23 pm)
Re: [PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
, Olof Johansson
, (Thu Oct 11, 10:40 pm)
Re: [PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
, Kyle McMartin
, (Thu Oct 11, 10:04 pm)
Re: [PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
, Olof Johansson
, (Thu Oct 11, 10:41 pm)
Re: [PATCH 2/2] powerpc: Switch to generic WARN_ON()/BUG_ON()
, Scott Wood
, (Thu Oct 11, 3:55 pm)
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