crosstool-ng: samples/powerpc-e500v2-linux-gnuspe/reported.by@aa934ec4b4ee

cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

     1 reporter_name="Anthony Foiani <anthony.foiani@gmail.com>"

     2 reporter_url="http://sourceware.org/ml/crossgcc/2010-09/msg00100.html"

     3 reporter_comment="This is a sample config file for Freescale e500v2 processors (e.g., MPC8548,

     4 MPC8572). It uses eglibc (for e500/SPE patches) and a recent gcc (4.6.0,

     5 for e500v2 DPFP support) and will generate appropriate dual-precision

     6 floating point instructions by default.

     8 Note: If building a Linux kernel with this toolchain, you will want to make

     9 sure -mno-spe AND -mspe=no are passed to gcc to prevent SPE ABI/instructions

    10 from getting into the kernel (which is currently unsupported). At this time,

    11 the kernel build system properly passes those two options, but older kernels

    12 were only passing -mno-spe by default."

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892	aa934ec4b4ee
parent 2290	ba82eb173bd4
permissions	-rw-r--r--