This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: [musl] SH sigcontext ABI is broken
- From: Geert Uytterhoeven <geert at linux-m68k dot org>
- To: Rich Felker <dalias at libc dot org>
- Cc: Rob Landley <rob at landley dot net>, musl at lists dot openwall dot com, libc-alpha at sourceware dot org, Linux-sh list <linux-sh at vger dot kernel dot org>
- Date: Thu, 25 Jun 2015 08:24:17 +0200
- Subject: Re: [musl] SH sigcontext ABI is broken
- Authentication-results: sourceware.org; auth=none
- References: <20150619070912 dot GA15025 at brightrain dot aerifal dot cx> <20150620180644 dot GY1173 at brightrain dot aerifal dot cx> <558A3124 dot 30701 at landley dot net> <20150624045224 dot GO1173 at brightrain dot aerifal dot cx> <558A587A dot 2010400 at landley dot net> <20150624180301 dot GT1173 at brightrain dot aerifal dot cx> <558A6D12 dot 4010104 at landley dot net> <20150624213425 dot GW1173 at brightrain dot aerifal dot cx>
On Wed, Jun 24, 2015 at 11:34 PM, Rich Felker <dalias@libc.org> wrote:
>> I want musl to support sh2 but I _also_ want it to support coldfire and
>> h8300 and so on. If musl is the successor to uclibc (which needs to be
>> put out of its misery), it needs nommu support for several different
>> architectures. If you insist that every nommu architecture must also run
>> those nommu binaries on with-mmu sibling architectures, you're going to
>> be unifying coldfire and m68k next...
>
> If you look at the kernel I'm pretty sure that already works...
> Coldfire does not seem to be a separate arch/ABI as far as the kernel
> is concerned.
Off-topic, but:
1. While the Coldfire user mode instruction set is (more or less?) a subset
of the classic m68k user mode instruction set, there are larger differences
in the supervisor mode instruction sets.
2. Coldfire uses a different MMU than classic m68k.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds