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3ebc5d0c1e
This step was only used in uClibc. However, with upcoming multilib, the config management will have to be done for each variant differently, anyway. uClibc was the only user of libc_check_config step, as well as CT_CONFIG_DIR directory. Retire these. Two other clean-ups in uClibc.sh: - KERNEL_HEADERS check seems to be bogus, this config option is not present even in 0.9.30 - which is not supported already. - SHARED_LIB_LOADER_PREFIX was renamed to MULTILIB_DIR in 0.9.31, according to ChangeLog - and MULTILIB_DIR is passed from command line instead. Signed-off-by: Alexey Neyman <stilor@att.net>
64 lines
2.2 KiB
Bash
64 lines
2.2 KiB
Bash
# Compute sparc-specific values
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CT_DoArchTupleValues() {
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# That's the only thing to override
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CT_TARGET_ARCH="sparc${target_bits_64}${CT_ARCH_SUFFIX}"
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# By default, sparc64-*-linux is configured with -mcpu=v9. However,
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# according to https://sourceware.org/ml/libc-alpha/2005-12/msg00027.html,
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# "There is no Linux sparc64 port that runs on non-UltraSPARC-I+ ISA CPUs."
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# There is a patch that would change the default to -mcpu=ultrasparc for
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# sparc64-*-linux configuration: https://patchwork.ozlabs.org/patch/409424/
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# but that patch has not been integrated (yet). One concern raised about
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# this patch was that -mcpu=ultrasparc can suboptimally schedule instructions
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# for newer SPARC CPUs. So, override to -mcpu=ultrasparc and warn the user.
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if [ "${CT_KERNEL}" = "linux" -a "${CT_ARCH_64}" = "y" -a -z "${CT_ARCH_CPU}" ]; then
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CT_DoLog WARN "Setting CPU to UltraSPARC-I for sparc64-linux. Set CT_ARCH_CPU if a different CPU is desired."
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CT_ARCH_WITH_CPU="--with-cpu=ultrasparc"
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fi
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}
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#------------------------------------------------------------------------------
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# Get multilib architecture-specific target
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# Usage: CT_DoArchMultilibTarget "multilib flags" "target tuple"
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CT_DoArchMultilibTarget ()
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{
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local target="${1}"; shift
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local -a multi_flags=( "$@" )
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local m32=false
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local m64=false
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for m in "${multi_flags[@]}"; do
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case "$m" in
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-m32) m32=true ;;
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-m64) m64=true ;;
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esac
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done
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# Fix up bitness
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case "${target}" in
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sparc-*) $m64 && target=${target/#sparc-/sparc64-} ;;
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sparc64-*) $m32 && target=${target/#sparc64-/sparc-} ;;
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esac
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echo "${target}"
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}
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# Special tuple adjustment for glibc.
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CT_DoArchGlibcAdjustTuple() {
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local target="${1}"
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case "${target}" in
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# SPARC quirk: glibc 2.23 and newer dropped support for SPARCv8 and
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# earlier (corresponding pthread barrier code is missing). Until this
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# support is reintroduced, configure as sparcv9.
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sparc-*)
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if [ "${CT_LIBC_GLIBC_2_23_or_later}" = y ]; then
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target=${target/#sparc-/sparcv9-}
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fi
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;;
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esac
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echo "${target}"
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}
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