scripts/build/arch/powerpc.sh
author Yann Diorcet <diorcet.yann@gmail.com>
Fri Nov 16 15:25:57 2012 +0100 (2012-11-16)
changeset 3119 1c56c03b7ed5
parent 2675 7c288c777455
child 3169 9d0b37f08a10
permissions -rw-r--r--
scripts: add BUILD/HOST extra cflags/ldflags

On some hosts, and for certain toolchains (eg. toolchain targetting
the upcoming Darwin), it may be necessary to pass arbitrary CFLAGS
and/or LDFLAGS when building the components.

And necessary infrastructure:
- EXTRA_{CFLAGS,LDFLAGS}_FOR_{BUILD,HOST} as config options
- pass those extra flags to components

Fix-up a slight typo in elf2flt at the same time (misnamed cflags).

Signed-off-by: Yann Diorcet <diorcet.yann@gmail.com>
Message-Id: <d24043276c9243a35421.1353077450@macbook-smorlat.local>
Patchwork-Id: 199645
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# Compute powerpc-specific values
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CT_DoArchTupleValues () {
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    # The architecture part of the tuple, override only for 64-bit
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    if [ "${CT_ARCH_64}" = "y" ]; then
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        CT_TARGET_ARCH="powerpc64"
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    fi
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    # Only override values when ABI is not the default
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    case "${CT_ARCH_powerpc_ABI}" in
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        eabi)
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            # EABI is only for bare-metal, so libc ∈ [none,newlib]
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            CT_TARGET_SYS="eabi"
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            ;;
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        spe)
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            case "${CT_LIBC}" in
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                none|newlib)    CT_TARGET_SYS="spe";;
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                *glibc)         CT_TARGET_SYS="gnuspe";;
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                uClibc)         CT_TARGET_SYS="uclibcgnuspe";;
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            esac
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            ;;
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    esac
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    # Add extra flags for SPE if needed
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    if [ "${CT_ARCH_powerpc_ABI_SPE}" = "y" ]; then
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        CT_ARCH_TARGET_CFLAGS="-mabi=spe -mspe"
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        CT_ARCH_CC_CORE_EXTRA_CONFIG="--enable-e500_double"
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        CT_ARCH_CC_EXTRA_CONFIG="--enable-e500_double"
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    fi
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}