samples/powerpc-e500v2-linux-gnuspe/reported.by
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Sep 09 00:02:01 2009 +0200 (2009-09-09)
changeset 1525 4647e6fb994a
parent 935 e175e3538310
child 2139 983823b3b569
permissions -rw-r--r--
gcc: add patch to fix EABI for armv4t

As pointed out by Martin GUY, gcc incorrectly generates armv5t
instrcutions for EABI, even for cores that are an armv4t.
The new patch (for the 4.3 series) fixes the problem by downgrading
the default CPU for EABI to being an armv4t core.
     1 reporter_name="Nate CASE"
     2 reporter_url="http://sourceware.org/ml/crossgcc/2008-10/msg00016.html"
     3 reporter_comment="This is a sample config file for Freescale e500v2 processors (e.g.,
     4 MPC8548, MPC8572).  It uses eglibc (for e500/SPE patches) and a recent
     5 gcc (4.3.1, for e500v2 DPFP support) and will generate appropriate
     6 dual-precision floating point instructions by default.
     7 
     8 Note: If building a Linux kernel with this toolchain, you will want to
     9 make sure -mno-spe AND -mspe=no are passed to gcc to prevent SPE
    10 ABI/instructions from getting into the kernel (which is currently
    11 unsupported).  At this time, the kernel build system only passes
    12 -mno-spe by default (this should be fixed soon hopefully)."