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# Compute MIPS-specific values
CT_DoArchTupleValues() {
# The architecture part of the tuple
CT_TARGET_ARCH="${CT_ARCH}${target_bits_64}${CT_ARCH_SUFFIX:-${target_endian_el}}"
# Override CFLAGS for endianness:
case "${CT_ARCH_ENDIAN}" in
big) CT_ARCH_ENDIAN_CFLAG="-EB";;
little) CT_ARCH_ENDIAN_CFLAG="-EL";;
esac
# Override ABI flags
CT_ARCH_ABI_CFLAG="-mabi=${CT_ARCH_mips_ABI}"
CT_ARCH_WITH_ABI="--with-abi=${CT_ARCH_mips_ABI}"
}
CT_DoArchUClibcConfig() {
local cfg="${1}"
CT_DoArchUClibcSelectArch "${cfg}" "${CT_ARCH}"
CT_KconfigDisableOption "CONFIG_MIPS_O32_ABI" "${cfg}"
CT_KconfigDisableOption "CONFIG_MIPS_N32_ABI" "${cfg}"
CT_KconfigDisableOption "CONFIG_MIPS_N64_ABI" "${cfg}"
case "${CT_ARCH_mips_ABI}" in
32)
CT_KconfigEnableOption "CONFIG_MIPS_O32_ABI" "${cfg}"
;;
n32)
CT_KconfigEnableOption "CONFIG_MIPS_N32_ABI" "${cfg}"
;;
64)
CT_KconfigEnableOption "CONFIG_MIPS_N64_ABI" "${cfg}"
;;
esac
# FIXME: uClibc (!ng) allows to select ISA in the config; should
# match from the selected ARCH_ARCH level... For now, delete and
# fall back to default.
CT_KconfigDeleteOption "CONFIG_MIPS_ISA_1" "${cfg}"
CT_KconfigDeleteOption "CONFIG_MIPS_ISA_2" "${cfg}"
CT_KconfigDeleteOption "CONFIG_MIPS_ISA_3" "${cfg}"
CT_KconfigDeleteOption "CONFIG_MIPS_ISA_4" "${cfg}"
CT_KconfigDeleteOption "CONFIG_MIPS_ISA_MIPS32" "${cfg}"
CT_KconfigDeleteOption "CONFIG_MIPS_ISA_MIPS32R2" "${cfg}"
CT_KconfigDeleteOption "CONFIG_MIPS_ISA_MIPS64" "${cfg}"
CT_KconfigDeleteOption "CONFIG_MIPS_ISA_MIPS64R2" "${cfg}"
}
CT_DoArchUClibcCflags() {
local cfg="${1}"
local cflags="${2}"
local f
for f in ${cflags}; do
case "${f}" in
-mabi=*)
CT_KconfigDisableOption "CONFIG_MIPS_O32_ABI" "${cfg}"
CT_KconfigDisableOption "CONFIG_MIPS_N32_ABI" "${cfg}"
CT_KconfigDisableOption "CONFIG_MIPS_N64_ABI" "${cfg}"
case "${f#-mabi=}" in
32) CT_KconfigEnableOption "CONFIG_MIPS_O32_ABI" "${cfg}";;
n32) CT_KconfigEnableOption "CONFIG_MIPS_N32_ABI" "${cfg}";;
64) CT_KconfigEnableOption "CONFIG_MIPS_N64_ABI" "${cfg}";;
*) CT_Abort "Unsupported ABI: ${f#-mabi=}";;
esac
;;
esac
done
}
CT_DoArchMUSLPostInstall() {
# GDB and MUSL maintainers seem to disagree on whether <sgidefs.h>
# is to be provided as a part of C library. GDB guys think it is
# a C library responsibility, while MUSL authors think GDB should
# not be using <sgidefs.h>. Neither side is willing to reach out
# to the other and negotiate the needed changes, and I don't want
# to play the middle man. Hence, provide our own wrapper for
# for <sgidefs.h> - the only solution short of telling MUSL users
# stop using it. This is why MUSL is experimental in ct-ng and
# will likely remain in that status.
# References:
# http://www.openwall.com/lists/musl/2017/01/26/2
# https://sourceware.org/ml/gdb-patches/2017-01/msg00469.html
# https://www.sourceware.org/ml/libc-alpha/2004-11/msg00034.html
if [ ! -r "${CT_HEADERS_DIR}/sgidefs.h" ]; then
echo "#include <asm/sgidefs.h> // Redirected by ct-ng" > "${CT_HEADERS_DIR}/sgidefs.h"
fi
}
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