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scripts/build/arch/sh.sh
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
parent 2760 b402a49734a3
child 3169 9d0b37f08a10
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 # Compute sh-specific values

     2 

     3 CT_DoArchTupleValues () {

     4     # The architecture part of the tuple:

     5     CT_TARGET_ARCH="${CT_ARCH_SH_VARIANT}${target_endian_eb}"

     6 

     7     # gcc ./configure flags

     8     CT_ARCH_WITH_ARCH=

     9     CT_ARCH_WITH_ABI=

    10     CT_ARCH_WITH_CPU=

    11     CT_ARCH_WITH_TUNE=

    12     CT_ARCH_WITH_FPU=

    13     CT_ARCH_WITH_FLOAT=

    14 

    15     # Endianness stuff

    16     case "${CT_ARCH_ENDIAN}" in

    17         big)    CT_ARCH_ENDIAN_CFLAG=-mb;;

    18         little) CT_ARCH_ENDIAN_CFLAG=-ml;;

    19     esac

    20 

    21     # CFLAGS

    22     case "${CT_ARCH_SH_VARIANT}" in

    23         sh3)    CT_ARCH_ARCH_CFLAG=-m3;;

    24         sh4*)

    25             # softfp is not possible for SuperH, no need to test for it.

    26             case "${CT_ARCH_FLOAT}" in

    27                 hard)

    28                     CT_ARCH_ARCH_CFLAG="-m4${CT_ARCH_SH_VARIANT##sh?}"

    29                     ;;

    30                 soft)

    31                     CT_ARCH_ARCH_CFLAG="-m4${CT_ARCH_SH_VARIANT##sh?}-nofpu"

    32                     ;;

    33             esac

    34             ;;

    35     esac

    36     CT_ARCH_FLOAT_CFLAG=

    37 }
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