From: Sebastian Huber <sebastian.huber@embedded-brains.de>
To: Jeff Johnston <jjohnstn@redhat.com>
Cc: Newlib <newlib@sourceware.org>
Subject: Re: [PATCH] powerpc/setjmp: Add 64-bit support
Date: Fri, 23 Sep 2022 21:02:34 +0200 [thread overview]
Message-ID: <ae1394cd-c5dc-0ae6-df41-6a6c3f898f96@embedded-brains.de> (raw)
In-Reply-To: <CAOox84tmW03+JtS66Rdx_c=X5SF1=dW3eXV-zzA+qMfMpwzODQ@mail.gmail.com>
Hello Jeff,
On 23/09/2022 20:04, Jeff Johnston wrote:
> Just a couple of questions/issues:
>
> 1. How did you arrive at 70 doubles and 43 doubles length values?
the 70 is the final offset 432 + 16 + 96 == 544 plus 16 for the
alignment divided by 8 (size of double). I checked this also with the
debugger.
The 43 is the final offset 232 + 8 + 96 == 336 plus 8 for the alignment
divided by 8.
> 2. It appears that __SPE__ is not accounted for in setjmp.h
The SPE is only used in 32-bit processors without a FPU or Altivec unit.
So, 256 bytes for the jmp_buf are enough.
--
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next prev parent reply other threads:[~2022-09-23 19:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-23 11:37 Sebastian Huber
2022-09-23 18:04 ` Jeff Johnston
2022-09-23 19:02 ` Sebastian Huber [this message]
2022-09-23 19:29 ` Jeff Johnston
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