config FREETZ_GCC_ABI string default "aapcs-linux" if FREETZ_TARGET_ARCH_ARM default "32" if FREETZ_TARGET_ARCH_MIPS # # The following code is a trade-off between being absolutely correct on the one hand # and our wish to reduce the number of download toolchains to support on the other hand. # # Being correct means the GCC_TUNE value must be the same as the CPU_MODEL value. Being # a bit incorrect (we use a downward compatible value) allows us to use the same # download toolchain for different CPU_MODEL's. As of now our download toolchains # are only uClibc and kernel-version dependent but not GCC_TUNE value. Being absolutely # correct would require to make them also GCC_TUNE value dependent. # # TODO: Analyse performance loss (if any) resulting from using compatible values. # According to some sources on the net [1] there is no gain from using # values above 24kc. # # [1] http://lists.infradead.org/pipermail/lede-dev/2016-August/002351.html # # -march=% config FREETZ_GCC_ARCH string # default "armv7-a" if \ FREETZ_CPU_MODEL_ARM_cortex # # 4KEc CPUs are mips32r2, so the correct value is actually mips32r2 # s. https://github.com/gcc-mirror/gcc/blob/gcc-8_1_0-release/gcc/config/mips/mips-cpus.def#L107 # # For some reasons AVM uses mips32 for AR7-{SANGAM,OHIO} boxes and mips32r2 for UR8 boxes. # # TODO: check if we can use mips32r2 even though AVM uses mips32 # default "mips32" if \ FREETZ_CPU_MODEL_MIPS_4KEc # default "mips32r2" if \ FREETZ_CPU_MODEL_MIPS_24KEc || \ FREETZ_CPU_MODEL_MIPS_34Kc || \ FREETZ_CPU_MODEL_MIPS_74Kc || \ FREETZ_CPU_MODEL_MIPS_interAptiv # default "atom" if \ FREETZ_CPU_MODEL_X86_ATOM # -mcpu=%, -mtune=% config FREETZ_GCC_CPU string default "cortex-a9" if \ FREETZ_CPU_MODEL_ARM_cortex # # TODO: the correct value is "4kec", which would result in mips32r2 binaries instead of mips32 # default "4kc" if \ FREETZ_CPU_MODEL_MIPS_4KEc # # we use the same download toolchain for all uClibc-XXX / kernel-2.6.28..2.6.32 based boxes # # all mips BE boxes with kernel <= 2.6.32.X, i.e # - IKS - all Fritz!OS versions # - AR9 - all Fritz!OS versions # - AR934x - all Fritz!OS versions # - AR10 - all Fritz!OS versions # - VR9 - Fritz!OS versions < 6.5X # - QCA955x - all Fritz!OS versions # - QCA956x - all Fritz!OS versions default "24kc" if \ FREETZ_CPU_MODEL_MIPS_24KEc || \ (FREETZ_CPU_MODEL_MIPS_34Kc && FREETZ_KERNEL_VERSION_2_6_32_MAX) || \ FREETZ_CPU_MODEL_MIPS_74Kc # # we use the same download toolchain for all VR9/GRX5 / uClibc-XXX / kernel-3.10 based boxes # # all mips BE boxes with kernel >= 3.10.X, i.e. # - VR9 - Fritz!OS versions >= 6.5X # - GRX5 - Fritz!OS versions >= 6.5X # # @interAptiv: not sure if 34kc is the correct value, it's at least the value used by AVM. # AVM patches GRX5 kernel sources and sets 34kc instead of mips32r2 for CPU_MIPS32_R2 symbol. # default "34kc" if \ (FREETZ_CPU_MODEL_MIPS_34Kc && FREETZ_KERNEL_VERSION_3_10_MIN) || \ FREETZ_CPU_MODEL_MIPS_interAptiv # default "atom" if \ FREETZ_CPU_MODEL_X86_ATOM # -mfpu=% config FREETZ_GCC_FPU string default "neon" if FREETZ_TARGET_ARCH_ARM && FREETZ_CPU_MODEL_ARM_cortex # -mfloat-abi=% (ARM) / -m%-float (MIPS) config FREETZ_GCC_FLOAT_ABI string default "softfp" if FREETZ_TARGET_ARCH_ARM && FREETZ_CPU_MODEL_ARM_cortex default "soft" if FREETZ_TARGET_ARCH_MIPS # -mmode=% config FREETZ_GCC_MODE string default "arm" if FREETZ_TARGET_ARCH_ARM && FREETZ_CPU_MODEL_ARM_cortex