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https://github.com/crosstool-ng/crosstool-ng.git
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34ecc718d9
This code was abstracted out of Cody P Schafer's multilib patch. It doesn't seem right having architecture dependent code in a specific libc implementation script. So this patch breaks it out into scripts/build/arch/<arch>.sh in a function: multilib_target_to_build="$(CT_DoArchMultilibTarget 'multi_flags' 'target-in')" Note that this function gets called on each multilib variant with different sets of compiler flags supplied in 'multi_flags'. The caller will first filter the flags so that there is no conflicting flags (e.g., no '-m32 -m64') supplied. Changed by Alexey Neyman: - make option analysis check specific option rather than match global options string as a whole. Moreover, old code did not handle multiple options in the same multilib, e.g. '-m64 -mlittle'. - fixed substitutions in powerpc.sh (*le variants did not match the pattern in the shell parameter expansion) - make s390.sh actually apply the flags it gathered from the options. - straighten the spaghetti in x86.sh by setting two flags, arch & abi. Also, do not depend on "gnu" being the last part - we can have '*-uclibcx32', for example. Signed-off-by: Bryan Hundven <bryanhundven@gmail.com> Signed-off-by: Ray Donnelly <ray.donnelly@gmail.com> Signed-off-by: Alexey Neyman <stilor@att.net>
70 lines
2.2 KiB
Bash
70 lines
2.2 KiB
Bash
# Compute powerpc-specific values
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CT_DoArchTupleValues () {
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# The architecture part of the tuple
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CT_TARGET_ARCH="powerpc${target_bits_64}${target_endian_le}${CT_ARCH_SUFFIX}"
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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 [ "${CT_ARCH_powerpc_ABI_SPE}" = "y" ]; then
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CT_ARCH_TARGET_CFLAGS="-mabi=spe -mspe"
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CT_ARCH_CC_CORE_EXTRA_CONFIG="--enable-e500_double"
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CT_ARCH_CC_EXTRA_CONFIG="--enable-e500_double"
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fi
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}
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#------------------------------------------------------------------------------
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# Get multilib architecture-specific target
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# Usage: CT_DoArchMultilibTarget "multilib flags" "target tuple"
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CT_DoArchMultilibTarget ()
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{
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local target="${1}"; shift
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local -a multi_flags=( "$@" )
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local m32=false
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local m64=false
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local mlittle=false
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local mbig=false
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for m in "${multi_flags[@]}"; do
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case "$m" in
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-m32) m32=true ;;
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-m64) m64=true ;;
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-mbig) mbig=true ;;
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-mlittle) mlittle=true ;;
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esac
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done
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# Fix up bitness
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case "${target}" in
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powerpc-*) $m64 && target=${target/#powerpc-/powerpc64-} ;;
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powerpcle-*) $m64 && target=${target/#powerpcle-/powerpc64le-} ;;
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powerpc64-*) $m32 && target=${target/#powerpc64-/powerpc-} ;;
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powerpc64le-*) $m32 && target=${target/#powerpc64le-/powerpcle-} ;;
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esac
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# Fix up endianness
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case "${target}" in
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powerpc-*) $mlittle && target=${target/#powerpc-/powerpcle-} ;;
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powerpcle-*) $mbig && target=${target/#powerpcle-/powerpc-} ;;
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powerpc64-*) $mlittle && target=${target/#powerpc64-/powerpc64le-} ;;
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powerpc64le-*) $mbig && target=${target/#powerpc64le-/powerpc64-} ;;
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esac
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# return the target
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echo "${target}"
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}
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