| # Settings for Raspberry Pi. |
| ifeq ($(TARGET),rpi) |
| # Default to the architecture used on the Pi Two/Three (ArmV7), but override this |
| # with TARGET_ARCH=armv6 to build for the Pi Zero or One. |
| TARGET_ARCH := armv7l |
| |
| ifeq ($(TARGET_ARCH), armv7l) |
| TARGET_TOOLCHAIN_PREFIX := arm-linux-gnueabihf- |
| CXXFLAGS += \ |
| -march=armv7-a \ |
| -mfpu=neon-vfpv4 \ |
| -funsafe-math-optimizations \ |
| -ftree-vectorize \ |
| -fPIC |
| |
| CFLAGS += \ |
| -march=armv7-a \ |
| -mfpu=neon-vfpv4 \ |
| -funsafe-math-optimizations \ |
| -ftree-vectorize \ |
| -fPIC |
| |
| LDFLAGS := \ |
| -Wl,--no-export-dynamic \ |
| -Wl,--exclude-libs,ALL \ |
| -Wl,--gc-sections \ |
| -Wl,--as-needed |
| |
| BUILD_WITH_RUY := true |
| endif |
| |
| # TODO(petewarden) In the future, we'll want to use OpenBLAS as a faster |
| # alternative to Eigen on non-NEON ARM hardware like armv6. |
| ifeq ($(TARGET_ARCH), armv6) |
| TARGET_TOOLCHAIN_PREFIX := arm-linux-gnueabi- |
| CXXFLAGS += \ |
| -march=armv6 \ |
| -mfpu=vfp \ |
| -funsafe-math-optimizations \ |
| -ftree-vectorize \ |
| -fPIC |
| |
| CFLAGS += \ |
| -march=armv6 \ |
| -mfpu=vfp \ |
| -funsafe-math-optimizations \ |
| -ftree-vectorize \ |
| -fPIC |
| |
| LDFLAGS := \ |
| -Wl,--no-export-dynamic \ |
| -Wl,--exclude-libs,ALL \ |
| -Wl,--gc-sections \ |
| -Wl,--as-needed |
| endif |
| |
| LIBS := \ |
| -latomic \ |
| -lstdc++ \ |
| -lpthread \ |
| -lm \ |
| -ldl |
| |
| endif |
