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scripts/build/binutils/elf2flt.sh
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
parent 2466 b7df125a1c78
child 2923 60f5ceb1b413
permissions -rw-r--r--
arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 # This file adds functions to build elf2flt

     2 # Copyright 2009 John Williams

     3 # Copyright 2007 Yann E. MORIN

     4 # Licensed under the GPL v2. See COPYING in the root of this package

     5 

     6 # Default: do nothing

     7 do_elf2flt_get()     { :; }

     8 do_elf2flt_extract() { :; }

     9 do_elf2flt()         { :; }

    10 

    11 if [ -n "${CT_ARCH_BINFMT_FLAT}" ]; then

    12 

    13 # Download elf2flt

    14 do_elf2flt_get() {

    15     CT_GetCVS "elf2flt-cvs-${CT_ELF2FLT_VERSION}"           \

    16               ":pserver:anonymous@cvs.uclinux.org:/var/cvs" \

    17               "elf2flt"                                     \

    18               "" \

    19               "elf2flt-cvs-${CT_ELF2FLT_VERSION}"

    20 }

    21 

    22 # Extract elf2flt

    23 do_elf2flt_extract() {

    24     CT_Extract "elf2flt-cvs-${CT_ELF2FLT_VERSION}"

    25     CT_Patch "elf2flt-cvs" "${CT_ELF2FLT_VERSION}"

    26 }

    27 

    28 # Build elf2flt

    29 do_elf2flt() {

    30     mkdir -p "${CT_BUILD_DIR}/build-elf2flt"

    31     cd "${CT_BUILD_DIR}/build-elf2flt"

    32 

    33     CT_DoStep INFO "Installing elf2flt"

    34 

    35     elf2flt_opts=

    36     binutils_bld=${CT_BUILD_DIR}/build-binutils

    37     binutils_src=${CT_SRC_DIR}/binutils-${CT_BINUTILS_VERSION}

    38 

    39     CT_DoLog EXTRA "Configuring elf2flt"

    40     CT_DoExecLog CFG                                            \

    41     CFLAGS="${CT_CFLAGS_FOR_HOST}"                              \

    42     "${CT_SRC_DIR}/elf2flt-cvs-${CT_ELF2FLT_VERSION}/configure" \

    43         --build=${CT_BUILD}                                     \

    44         --host=${CT_HOST}                                       \

    45         --target=${CT_TARGET}                                   \

    46         --prefix=${CT_PREFIX_DIR}                               \

    47         --with-bfd-include-dir=${binutils_bld}/bfd              \

    48         --with-binutils-include-dir=${binutils_src}/include     \

    49         --with-libbfd=${binutils_bld}/bfd/libbfd.a              \

    50         --with-libiberty=${binutils_bld}/libiberty/libiberty.a  \

    51         ${elf2flt_opts}                                         \

    52         "${CT_ELF2FLT_EXTRA_CONFIG_ARRAY[@]}"

    53 

    54     CT_DoLog EXTRA "Building elf2flt"

    55     CT_DoExecLog ALL make ${JOBSFLAGS}

    56 

    57     CT_DoLog EXTRA "Installing elf2flt"

    58     CT_DoExecLog ALL make install

    59 

    60     # Make those new tools available to the core C compilers to come.

    61     # Note: some components want the ${TARGET}-{ar,as,ld,strip} commands as

    62     # well. Create that.

    63     mkdir -p "${CT_CC_CORE_STATIC_PREFIX_DIR}/${CT_TARGET}/bin"

    64     mkdir -p "${CT_CC_CORE_STATIC_PREFIX_DIR}/bin"

    65     mkdir -p "${CT_CC_CORE_SHARED_PREFIX_DIR}/${CT_TARGET}/bin"

    66     mkdir -p "${CT_CC_CORE_SHARED_PREFIX_DIR}/bin"

    67     for t in elf2flt flthdr; do

    68         ln -sv "${CT_PREFIX_DIR}/bin/${CT_TARGET}-${t}" "${CT_CC_CORE_STATIC_PREFIX_DIR}/${CT_TARGET}/bin/${t}"

    69         ln -sv "${CT_PREFIX_DIR}/bin/${CT_TARGET}-${t}" "${CT_CC_CORE_STATIC_PREFIX_DIR}/bin/${CT_TARGET}-${t}"

    70         ln -sv "${CT_PREFIX_DIR}/bin/${CT_TARGET}-${t}" "${CT_CC_CORE_SHARED_PREFIX_DIR}/${CT_TARGET}/bin/${t}"

    71         ln -sv "${CT_PREFIX_DIR}/bin/${CT_TARGET}-${t}" "${CT_CC_CORE_SHARED_PREFIX_DIR}/bin/${CT_TARGET}-${t}"

    72     done 2>&1 |CT_DoLog ALL

    73 

    74     CT_EndStep

    75 }

    76 

    77 fi # CT_ARCH_BINFMT_FLAT
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