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Date: Thu, 22 Feb 2018 15:19:54 -0600
From: "A. Wilcox" <>
Subject: Re: [PATCH] powerpc: make ucontext_t API match glibc

On 02/22/18 12:28, Rich Felker wrote:
> Basically, what seems to have happened is that very early powerpc
> kernels ignored the fact that ucontext_t/mcontext_t are permanent ABI
> with userspace and made the definition of mcontext_t model-specific.

Conjecture, but if you are correct, that could be because the earliest
PowerPC kernels were MkLinux.  The goal was making it work on Power Macs
that didn't have OpenFirmware *and* IBM RS/6000 machines, so that could
have been a purposeful design decision that wasn't thought through enough.


A. Wilcox (awilfox)
Project Lead, Adélie Linux

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