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RFC ARM: VFP: Save / restore VFP state on the signal handler path

Jamie Lokier linux-arm-kernel 1 version New

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  1. v5 RFC Latest0 of 2 patches 0 repliesNew

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Cover letter [RFC PATCH v5 0/2] ARM: VFP: Save / restore VFP state on the signal handler path
Quoted 7 lines · imre.deak at nokia.com

From: Imre Deak <[email protected]>

Changes since v4:
- Do not add the packed attribute to user_vfp or user_vfp_exc. I added packed to these structs to prevent the extra padding in vfp_sigframe. But actually the padding is in accordance with the ARM ABI.

EABI, OABI or both?

In general it's a really good idea, if you know there will be padding, to insert dummy fields where the padding goes so that it doesn't make any difference what compiler, ABI and settings are used.

-- Jamie

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