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bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile
From: |
Stefan Monnier |
Subject: |
bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking |
Date: |
Thu, 28 Jan 2021 10:44:09 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
>> - I'd guess that the bus error is due to alignment restrictions.
>> What hardware is this running on?
> See the Subject: it's SPARC64.
I mean the actual hardware, not the architecture.
[ I know most RISC processors started with a restriction that they only
allowed aligned memory accesses, but AFAIK they've changed stance
since (IIUC the extra hardware can be very little, sometimes even less
than the hardware that would be needed to implement the ad-hoc
"support instructions" used to do the unaligned access as a sequence
of instructions).
It's one of the RISC simplifications that just didn't pan out. ]
>> - AFAICT from the backtrace, `ptr` points to a plain normal ELisp
>> string's content, yet these are supposed to be aligned, so what's
>> going on here
> I wondered that myself.
And what did you conclude? ;-)
Stef
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Ahmed Khanzada, 2021/01/26
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Ahmed Khanzada, 2021/01/26
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Eli Zaretskii, 2021/01/26
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Ahmed Khanzada, 2021/01/27
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Eli Zaretskii, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Stefan Monnier, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Eli Zaretskii, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking,
Stefan Monnier <=
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Stefan Monnier, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Stefan Monnier, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Andreas Schwab, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Eli Zaretskii, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Stefan Monnier, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Andreas Schwab, 2021/01/28
- bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Stefan Monnier, 2021/01/28
bug#46111: Reverting fns.c hash function due to OpenBSD/SPARC64 compile breaking, Philipp Stephani, 2021/01/26