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config/arch/powerpc.in.2
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Dec 31 18:47:37 2011 +0100 (2011-12-31)
changeset 2829 0c3c95f911ec
parent 2484 d1a8c2ae7946
permissions -rw-r--r--
docs: credit Konrad EISELE for the initial multilib support

Konrad submitted an initial patch adding multlib support:
http://sourceware.org/ml/crossgcc/2011-11/msg00040.html

The patch was full of good ideas, but had a few issues, so
I (Yann E. MORIN) started it all from scatch, re-using part
of the original patch. This got implemented in this series:
hg log -r 446a17b5dd1e:e47d17391ae3

As I forgot to credit Konrad in these changelogs, update the
docs so that the work by Konrad gets credited. Without his
initial effort, we would probably not have had multlib support
so soon. Thank you Konrad!

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 # powerpc specific configuration file

     2 

     3 config ARCH_powerpc_ABI

     4     string

     5     default ""     if ARCH_powerpc_ABI_DEFAULT

     6     default "eabi" if ARCH_powerpc_ABI_EABI

     7     default "spe"  if ARCH_powerpc_ABI_SPE

     8 

     9 choice

    10     bool

    11     prompt "ABI"

    12     default ARCH_powerpc_ABI_DEFAULT

    13 

    14 config ARCH_powerpc_ABI_DEFAULT

    15     bool

    16     prompt "default"

    17     help

    18       The default ABI (System V.4).

    19 

    20 config ARCH_powerpc_ABI_EABI

    21     bool

    22     prompt "EABI"

    23     depends on BARE_METAL

    24     help

    25       The Embedded ABI (stack alignment of 8 bytes, etc).

    26 

    27 config ARCH_powerpc_ABI_SPE

    28     bool

    29     prompt "SPE"

    30     help

    31       Add support for the Signal Processing Engine.  This will set up

    32       the toolchain so that it supports the SPE ABI extensions. This

    33       mainly targets Freescale e500 processors.

    34       

    35       Setting this option will append "spe" to the end of your target

    36       tuple name (e.g., powerpc-e500v2-linux-gnuspe) so that the gcc

    37       configure/build system will know to include SPE ABI support. It

    38       will also automatically add "-mabi=spe -mspe" to your TARGET_CFLAGS,

    39       and "--enable-e500_double" to your CC_EXTRA_CONFIG_ARRAY, so you

    40       do not need to explicitly add them.

    41 

    42 endchoice
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