crosstool-ng/scripts/build/arch/sh.sh
Alexey Neyman 7c720ae394 Only decorate TARGET_ARCH if using specific CPU
Otherwise, binutils don't recognize it as a valid target - even though
GCC does.

Fixes #897.

Signed-off-by: Alexey Neyman <stilor@att.net>
2018-01-21 19:45:13 -08:00

234 lines
7.9 KiB
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# Compute sh-specific values
CT_DoArchTupleValues () {
# The architecture part of the tuple. Binutils do not accept specifications
# like 'sheb-unknown-elf' even though GCC does. So keep the tuple just sh-*-elf
# unless user wants something specific (either CPU or explicit suffix).
if [ "${CT_ARCH_SH_VARIANT}" != "sh" -o -n "${CT_ARCH_SUFFIX}" ]; then
CT_TARGET_ARCH="${CT_ARCH_SH_VARIANT}${CT_ARCH_SUFFIX:-${target_endian_eb}}"
fi
# Endianness stuff (uses non-standard CFLAGS). If both are compiled, let the
# compiler's default or multilib iterator be used.
case "${CT_ARCH_ENDIAN}" in
big) CT_ARCH_ENDIAN_CFLAG=-mb;;
little) CT_ARCH_ENDIAN_CFLAG=-ml;;
esac
# Instead of -m{soft,hard}-float, uses CPU type
CT_ARCH_FLOAT_CFLAG=
case "${CT_ARCH_SH_VARIANT}" in
sh3) CT_ARCH_ARCH_CFLAG=-m3;;
sh4*|sh2*)
# softfp is not possible for SuperH, no need to test for it.
case "${CT_ARCH_FLOAT}" in
hard)
CT_ARCH_ARCH_CFLAG="-m${CT_ARCH_SH_VARIANT##sh}"
;;
soft)
CT_ARCH_ARCH_CFLAG="-m${CT_ARCH_SH_VARIANT##sh}-nofpu"
;;
esac
;;
esac
}
CT_DoArchMultilibList() {
local save_ifs="${IFS}"
local new
local x
# In a configuration for SuperH, GCC list of multilibs shall not include
# the default CPU. E.g. if configuring for sh4-*-*, we need to remove
# "sh4" or "m4" from the multilib list. Otherwise, the resulting compiler
# will fail when that CPU is selected explicitly "sh4-multilib-linux-gnu-gcc -m4 ..."
# as it will fail to find the sysroot with that suffix. This applies to both
# the CPU type inferred from the target tuple (CT_ARCH_SH_VARIANT) as well as
# the default CPU configured with --with-cpu (CT_ARCH_CPU).
IFS=,
for x in ${CT_CC_GCC_MULTILIB_LIST}; do
if [ "${x}" = "${CT_ARCH_SH_VARIANT}" -o "sh${x#m}" = "${CT_ARCH_SH_VARIANT}" ]; then
CT_DoLog WARN "Ignoring '${x}' in multilib list: it is the default multilib"
continue
fi
if [ "${x}" = "${CT_ARCH_CPU}" -o "sh${x#m}" = "${CT_ARCH_CPU}" ]; then
CT_DoLog WARN "Ignoring '${x}' in multilib list: it is the default multilib"
continue
fi
new="${new:+${new},}${x}"
done
IFS="${save_ifs}"
CT_CC_GCC_MULTILIB_LIST="${new}"
CT_DoLog DEBUG "Adjusted CT_CC_GCC_MULTILIB_LIST to '${CT_CC_GCC_MULTILIB_LIST}'"
}
#------------------------------------------------------------------------------
# Get multilib architecture-specific target
# Usage: CT_DoArchMultilibTarget "target variable" "multilib flags"
CT_DoArchMultilibTarget ()
{
local target_var="${1}"; shift
local -a multi_flags=( "$@" )
local target_
local newcpu
for m in "${multi_flags[@]}"; do
case "${m}" in
-m4*) newcpu=sh4;;
-m3*) newcpu=sh3;;
-m2*) newcpu=sh2;;
-m1*) newcpu=sh1;;
esac
done
eval target_=\"\${${target_var}}\"
# Strip CPU name and append the new one if an option has been seen.
if [ -n "${newcpu}" ]; then
target_="${newcpu}-${target_#*-}"
fi
# Set the target variable
eval ${target_var}=\"${target_}\"
}
# Adjust target tuple for GLIBC
CT_DoArchGlibcAdjustTuple() {
local target_var="${1}"
local target_
eval target_=\"\${${target_var}}\"
case "${target_}" in
sh-*)
# Glibc does not build unless configured with 'shX-*' tuple.
# Since we ended up here, no architecture variant has been
# specified, so the only source of default is CT_ARCH_CPU.
# GCC defaults to sh1, but this Glibc cannot compile for it.
if [ -n "${CT_ARCH_CPU}" ]; then
target_=${target_/#sh-/${CT_ARCH_CPU}-}
CT_DoLog DEBUG "Adjusted target tuple ${target_}"
else
CT_Abort "GNU C library cannot build for sh1 (GCC default). " \
"Specify architecture variant or the default CPU type."
fi
;;
esac
# Set the target variable
eval ${target_var}=\"${target_}\"
}
# Multilib: Adjust configure arguments for GLIBC
# Usage: CT_DoArchGlibcAdjustConfigure <configure-args-array-name> <cflags>
CT_DoArchGlibcAdjustConfigure() {
local -a add_args
local array="${1}"
local cflags="${2}"
local opt
for opt in ${cflags}; do
case "${opt}" in
-m[1-5]*-nofpu)
add_args+=( "--without-fp" )
;;
-m[1-5]*)
add_args+=( "--with-fp" )
;;
esac
done
# If architecture variant was specified, we'd have CT_ARCH_ARCH_CFLAG
# and it would've been handled above. Our last resort: CT_ARCH_CPU
if [ "${#add_args[@]}" = 0 ]; then
case "${CT_ARCH_CPU}" in
sh[34]*-nofpu)
add_args+=( "--without-fp" )
;;
sh[34]*)
add_args+=( "--with-fp" )
;;
esac
fi
eval "${array}+=( \"\${add_args[@]}\" )"
}
CT_DoArchUClibcConfig() {
local cfg="${1}"
CT_DoArchUClibcSelectArch "${cfg}" "sh"
CT_KconfigDisableOption "CONFIG_SH2" "${cfg}"
CT_KconfigDisableOption "CONFIG_SH2A" "${cfg}"
CT_KconfigDisableOption "CONFIG_SH3" "${cfg}"
CT_KconfigDisableOption "CONFIG_SH4" "${cfg}"
CT_KconfigDisableOption "CONFIG_SH4A" "${cfg}"
case "${CT_ARCH_SH_VARIANT}" in
sh2) CT_KconfigEnableOption "CONFIG_SH2" "${cfg}";;
sh2a) CT_KconfigEnableOption "CONFIG_SH2A" "${cfg}";;
sh3) CT_KconfigEnableOption "CONFIG_SH3" "${cfg}";;
sh4) CT_KconfigEnableOption "CONFIG_SH4" "${cfg}";;
sh4a) CT_KconfigEnableOption "CONFIG_SH4A" "${cfg}";;
esac
}
CT_DoArchUClibcCflags() {
local cfg="${1}"
local cflags="${2}"
local f
for f in ${cflags}; do
case "${f}" in
-ml)
CT_KconfigDisableOption "ARCH_BIG_ENDIAN" "${dst}"
CT_KconfigDisableOption "ARCH_WANTS_BIG_ENDIAN" "${dst}"
CT_KconfigEnableOption "ARCH_LITTLE_ENDIAN" "${dst}"
CT_KconfigEnableOption "ARCH_WANTS_LITTLE_ENDIAN" "${dst}"
;;
-mb)
CT_KconfigEnableOption "ARCH_BIG_ENDIAN" "${dst}"
CT_KconfigEnableOption "ARCH_WANTS_BIG_ENDIAN" "${dst}"
CT_KconfigDisableOption "ARCH_LITTLE_ENDIAN" "${dst}"
CT_KconfigDisableOption "ARCH_WANTS_LITTLE_ENDIAN" "${dst}"
;;
-m2|-m2a|-m2a-nofpu|-m3|-m4|-m4-nofpu|-m4a|-m4a-nofpu)
CT_KconfigDisableOption "CONFIG_SH2" "${cfg}"
CT_KconfigDisableOption "CONFIG_SH2A" "${cfg}"
CT_KconfigDisableOption "CONFIG_SH3" "${cfg}"
CT_KconfigDisableOption "CONFIG_SH4" "${cfg}"
CT_KconfigDisableOption "CONFIG_SH4A" "${cfg}"
CT_KconfigDisableOption "UCLIBC_HAS_FPU" "${cfg}"
case "${f}" in
-m2)
CT_KconfigEnableOption "CONFIG_SH2" "${cfg}"
;;
-m2a)
CT_KconfigEnableOption "CONFIG_SH2A" "${cfg}"
CT_KconfigEnableOption "UCLIBC_HAS_FPU" "${cfg}"
;;
-m2a-nofpu)
CT_KconfigEnableOption "CONFIG_SH2A" "${cfg}"
;;
-m3)
CT_KconfigEnableOption "CONFIG_SH3" "${cfg}"
;;
-m4)
CT_KconfigEnableOption "CONFIG_SH4" "${cfg}"
CT_KconfigEnableOption "UCLIBC_HAS_FPU" "${cfg}"
;;
-m4-nofpu)
CT_KconfigEnableOption "CONFIG_SH4" "${cfg}"
;;
-m4a)
CT_KconfigEnableOption "CONFIG_SH4A" "${cfg}"
CT_KconfigEnableOption "UCLIBC_HAS_FPU" "${cfg}"
;;
-m4a-nofpu)
CT_KconfigEnableOption "CONFIG_SH4A" "${cfg}"
;;
esac
;;
esac
done
}