From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] Sparc Leon support in Buildroot
Date: Tue, 1 Jul 2014 20:22:06 +0200 [thread overview]
Message-ID: <20140701202206.153b2cf6@free-electrons.com> (raw)
Hello Konrad,
Back in 2010, you contributed a number of patches to Buildroot to
support the Sparc Leon processors. It turns out that today, those
processors are the only one still needing gcc 4.4.x:
prompt "GCC compiler Version"
default BR2_GCC_VERSION_4_4_X if BR2_sparc_sparchfleon || BR2_sparc_sparchfleonv8 || BR2_sparc_sparcsfleon || BR2_sparc_sparcsfleonv8
default BR2_GCC_VERSION_4_2_2_AVR32_2_1_5 if BR2_avr32
default BR2_GCC_VERSION_4_7_X if BR2_sparc
default BR2_GCC_VERSION_4_8_ARC if BR2_arc
default BR2_GCC_VERSION_4_9_X if BR2_microblaze || BR2_powerpc64le
default BR2_GCC_VERSION_4_5_X if BR2_bfin
default BR2_GCC_VERSION_4_8_X
Do you know if there's any reason to still keep gcc 4.4 for those
processors? Wasn't the support for Sparc Leon merged in upstream gcc?
From https://sourceware.org/ml/crossgcc/2011-12/msg00004.html, I see
that some patches were still needed for gcc 4.6, but according to
https://gcc.gnu.org/onlinedocs/gcc/SPARC-Options.html, Sparc Leon
processors seem to be supported.
According to https://gcc.gnu.org/gcc-4.6/changes.html, the Sparc Leon
supported was merged in gcc 4.6: "GCC now supports the LEON series of
SPARC V8 processors. The code generated by the compiler can either be
tuned to it by means of the --with-tune=leon configure option and
-mtune=leon compilation option, or the compiler can be built for the
sparc-leon-{elf,linux} and sparc-leon3-{elf,linux} targets directly.".
Could you update us on the Sparc Leon support, and maybe submit some
patches to Buildroot to make the relevant changes?
Thanks!
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next reply other threads:[~2014-07-01 18:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-01 18:22 Thomas Petazzoni [this message]
2014-08-20 11:01 ` [Buildroot] Sparc Leon support in Buildroot Andreas Larsson
2014-08-20 12:05 ` Thomas Petazzoni
2014-09-03 14:13 ` Andreas Larsson
2014-09-03 14:45 ` Thomas Petazzoni
2014-09-03 15:14 ` Andreas Larsson
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