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config/arch/mips.in.2
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
permissions -rw-r--r--
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 # MIPS specific config options

     2 

     3 choice

     4     bool

     5     prompt "ABI"

     6 

     7 config ARCH_mips_o32

     8     bool

     9     prompt "o32"

    10     depends on ARCH_32

    11     help

    12       This is the -mabi=32 gcc option.

    13 

    14 config ARCH_mips_n32

    15     bool

    16     prompt "n32"

    17     depends on ARCH_64

    18     help

    19       This is the -mabi=n32 gcc option.

    20 

    21 config ARCH_mips_n64

    22     bool

    23     prompt "n64"

    24     depends on ARCH_64

    25     help

    26       This is the -mabi=64 gcc option.

    27 

    28 # Not supported on Linux:

    29 # o64   : seems related to *BSD

    30 # eabi  : seems related to bare-metal

    31 

    32 endchoice

    33 

    34 config ARCH_mips_ABI

    35     string

    36     default "32"    if ARCH_mips_o32

    37     default "n32"   if ARCH_mips_n32

    38     default "64"    if ARCH_mips_n64
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