scripts/build/arch/sh.sh
author Johannes Stezenbach <js@sig21.net>
Thu Jul 29 19:47:16 2010 +0200 (2010-07-29)
changeset 2045 fdaa6c7f6dea
parent 964 0535f7bf1069
child 2760 b402a49734a3
permissions -rw-r--r--
cc/gcc: add option to compile against static libstdc++, for gcc-4.4 and newer

Idea and know-how taken from CodeSourcery build script.

Normal build:
$ ldd arm-unknown-linux-uclibcgnueabi-gcc
linux-gate.so.1 => (0xb77f3000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb76e8000)
libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb75a1000)
libm.so.6 => /lib/i686/cmov/libm.so.6 (0xb757a000)
/lib/ld-linux.so.2 (0xb77f4000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb755c000)

CC_STATIC_LIBSTDCXX=y:
$ ldd arm-unknown-linux-uclibcgnueabi-gcc
linux-gate.so.1 => (0xb7843000)
libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb76e6000)
/lib/ld-linux.so.2 (0xb7844000)

I made CC_STATIC_LIBSTDCXX default=y since I think
it is always desirable.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
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# Compute sh-specific values
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CT_DoArchTupleValues () {
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    # The architecture part of the tuple:
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    CT_TARGET_ARCH="${CT_ARCH_SH_VARIANT}${target_endian_eb}"
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    # gcc ./configure flags
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    CT_ARCH_WITH_ARCH=
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    CT_ARCH_WITH_ABI=
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    CT_ARCH_WITH_CPU=
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    CT_ARCH_WITH_TUNE=
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    CT_ARCH_WITH_FPU=
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    CT_ARCH_WITH_FLOAT=
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    # Endianness stuff
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    case "${CT_ARCH_BE},${CT_ARCH_LE}" in
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        y,) CT_ARCH_ENDIAN_CFLAG=-mb;;
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        ,y) CT_ARCH_ENDIAN_CFLAG=-ml;;
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    esac
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    # CFLAGS
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    case "${CT_ARCH_SH_VARIANT}" in
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        sh3)    CT_ARCH_ARCH_CFLAG=-m3;;
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        sh4*)
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            case "${CT_ARCH_FLOAT_HW},${CT_ARCH_FLOAT_SW}" in
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                y,) CT_ARCH_ARCH_CFLAG="-m4${CT_ARCH_SH_VARIANT##sh?}";;
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                ,y) CT_ARCH_ARCH_CFLAG="-m4${CT_ARCH_SH_VARIANT##sh?}-nofpu";;
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            esac
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            ;;
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    esac
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    CT_ARCH_FLOAT_CFLAG=
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}