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Date: Tue, 23 Jun 2009 16:40:35 +0400
Message-ID: <aa09d86e0906230540u64c3bdb7i4168dc545376d0c2@mail.gmail.com>
Subject: Re: [gentoo-embedded] sparcv8 gcc
From: =?KOI8-R?B?88XSx8XKIO3J0s/Oz9c=?= <ierton@gmail.com>
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>> http://gcc.gnu.org/onlinedocs/gcc-4.4.0/gcc/SPARC-Options.html#SPARC-Options
>> You'll need to use -mno-fpu on the CFLAGS. And again, the -softfloat-
>> thing on the CHOST is gentoo-specific and only applies to ARM.
>>
>>
>
> Thanks! i'll try it as soon as i can.
Hi.
man gcc says about -mno-fpu in SPARC section that "... you need to
compile libgcc.a, the library that comes with GCC, with -msoft-float
in order for this to work". So i try that:
$ export CFLAGS="-msoft-float"
$ crossdev sparc-module2-linux-gnu
Unfortunately, binutils fails to build with link-time errors:
../bfd/.libs/libbfd.so: undefined reference to `__floatsidf'
../bfd/.libs/libbfd.so: undefined reference to `__adddf3'
../bfd/.libs/libbfd.so: undefined reference to `__divdf3'
I found, that these functions are gcc floating point implementation.
But binutils should be built before gcc... So i think, that i am
trying to do something wrong again. Could you help?
Note, that without export CFLAGS="-msoft-float", crossdev successfully
builds development tree, but i can't use -mno-fpu in it's CFLAGS (same
errors).
Thanks!
Sergey