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# Compute x86-specific values
# This one really needs a little love! :-(
CT_DoArchTupleValues() {
# Override the architecture part of the tuple:
if [ "${CT_ARCH_64}" = "y" ]; then
CT_TARGET_ARCH=x86_64
else
arch="${CT_ARCH_ARCH}"
[ -z "${arch}" ] && arch="${CT_ARCH_TUNE}"
case "${arch}" in
"") CT_TARGET_ARCH=i386;;
i386|i486|i586|i686) CT_TARGET_ARCH="${arch}";;
winchip*) CT_TARGET_ARCH=i486;;
pentium|pentium-mmx|c3*) CT_TARGET_ARCH=i586;;
pentiumpro|pentium*|athlon*) CT_TARGET_ARCH=i686;;
prescott) CT_TARGET_ARCH=i686;;
*) CT_TARGET_ARCH=i586;;
esac
fi
CT_TARGET_ARCH="${CT_TARGET_ARCH}${CT_ARCH_SUFFIX}"
# Shouldn't be possible to specify this (CT_TARGET_SYS is not specified by the user,
# it is computed by scripts/functions from libc choices). But trap if such invalid
# values ever come from the caller:
case "${CT_TARGET_ARCH}-${CT_TARGET_SYS}" in
i[34567]86-gnux32)
CT_DoLog ERROR "Invalid CT_TARGET: i[34567]86-<vendor>-<os>-gnux32 is invalid."
CT_DoLog ERROR "CT_TARGET: ${CT_TARGET}"
CT_Abort "Go read: https://wiki.debian.org/Multiarch/Tuples"
;;
esac
}
#------------------------------------------------------------------------------
# Get multilib architecture-specific target
# Usage: CT_DoArchMultilibTarget "multilib flags" "target tuple"
CT_DoArchMultilibTarget ()
{
local target="${1}"; shift
local -a multi_flags=( "$@" )
local bit32=false
local bit64=false
local abi_dflt=false
local abi_x32=false
for m in "${multi_flags[@]}"; do
case "$m" in
-m32) bit32=true; abi_dflt=true;;
-m64) bit64=true; abi_dflt=true;;
-mx32) bit64=true; abi_x32=true;;
esac
done
# Fix up architecture.
case "${target}" in
x86_64-*) $bit32 && target=${target/#x86_64-/i386-} ;;
i[34567]86-*) $bit64 && target=${target/#i[34567]86-/x86_64-} ;;
esac
# Fix up the ABI part.
case "${target}" in
*x32) $abi_dflt && target=${target/%x32} ;;
*) $abi_x32 && target=${target}x32 ;;
esac
echo "${target}"
}
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