linux-kernel - Re: [PATCH v1 1/1] MIPS: TXx9: Convert SPI platform data to software nodes

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Message-ID: <CAMuHMdXiLk+b2RtS+9xOfurVF2ajac92i_L48UAF_9B3Let0jQ@mail.gmail.com>
Date:   Tue, 18 Jan 2022 21:37:44 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     "Maciej W. Rozycki" <macro@...am.me.uk>
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Arnd Bergmann <arnd@...db.de>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 1/1] MIPS: TXx9: Convert SPI platform data to software nodes

Hi Maciej,

On Tue, Jan 18, 2022 at 8:59 PM Maciej W. Rozycki <macro@...am.me.uk> wrote:
> > Took me a bit to test proper operation, as contemporary cross-toolchains
> > create userland binaries that can no longer run on MIPS-II/III CPUs,
> > and native development is slow and memory-constrained (dpkg OOM)...
>
>  You mean cross-toolchains included with (some) distributions, right?

Yep, the MIPS cross-toolchain that comes with Ubuntu.

>  I do hope so or otherwise I'd be very concerned.  Myself I've been using
> a self-built MIPS cross-compiler, running on POWER9, which builds MIPS I
> binaries just fine, e.g.:
>
> $ file install/usr/sysroot/{lib/ld-2.32.9000.so,usr/bin/gdbserver}
> install/usr/sysroot/lib/ld-2.32.9000.so: ELF 32-bit LSB pie executable, MIPS, MIPS-I version 1 (SYSV), dynamically linked, with debug_info, not stripped
> install/usr/sysroot/usr/bin/gdbserver: ELF 32-bit LSB executable, MIPS, MIPS-I version 1 (GNU/Linux), dynamically linked, interpreter /lib/ld.so.1, for GNU/Linux 3.2.0, not stripped

Debian raised the minimum requirements for MIPS, hence mine are
ELF 32-bit MSB shared object, MIPS, MIPS32 rel2 version 1 (SYSV)

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-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