| LOCAL_DIR := $(GET_LOCAL_DIR) |
| |
| # can override this in local.mk |
| ENABLE_THUMB?=true |
| |
| DEFINES += \ |
| ARM_CPU_$(ARM_CPU)=1 |
| |
| # do set some options based on the cpu core |
| HANDLED_CORE := false |
| ifeq ($(ARM_CPU),cortex-a8) |
| DEFINES += \ |
| ARM_WITH_CP15=1 \ |
| ARM_WITH_MMU=1 \ |
| ARM_ISA_ARMv7=1 \ |
| ARM_WITH_VFP=1 \ |
| ARM_WITH_NEON=1 \ |
| ARM_WITH_THUMB=1 \ |
| ARM_WITH_THUMB2=1 \ |
| ARM_WITH_CACHE=1 \ |
| ARM_WITH_L2=1 |
| CFLAGS += -mcpu=$(ARM_CPU) |
| #CFLAGS += -mcpu=arm1136jf-s # compiler doesn't understand cortex yet |
| HANDLED_CORE := true |
| #CFLAGS += -mfpu=vfp -mfloat-abi=softfp |
| endif |
| ifeq ($(ARM_CPU),arm1136j-s) |
| DEFINES += \ |
| ARM_WITH_CP15=1 \ |
| ARM_WITH_MMU=1 \ |
| ARM_ISA_ARMv6=1 \ |
| ARM_WITH_THUMB=1 \ |
| ARM_WITH_CACHE=1 \ |
| ARM_CPU_ARM1136=1 |
| CFLAGS += -mcpu=$(ARM_CPU) |
| HANDLED_CORE := true |
| endif |
| ifeq ($(ARM_CPU),arm1176jzf-s) |
| DEFINES += \ |
| ARM_WITH_CP15=1 \ |
| ARM_WITH_MMU=1 \ |
| ARM_ISA_ARMv6=1 \ |
| ARM_WITH_VFP=1 \ |
| ARM_WITH_THUMB=1 \ |
| ARM_WITH_CACHE=1 \ |
| ARM_CPU_ARM1136=1 |
| CFLAGS += -mcpu=$(ARM_CPU) |
| HANDLED_CORE := true |
| endif |
| ifeq ($(ARM_CPU),arm926ej-s) |
| DEFINES += \ |
| ARM_WITH_CP15=1 \ |
| ARM_WITH_MMU=1 \ |
| ARM_ISA_ARMv5E=1 \ |
| ARM_WITH_THUMB=1 \ |
| ARM_WITH_CACHE=1 \ |
| ARM_CPU_ARM9=1 \ |
| ARM_CPU_ARM926=1 |
| CFLAGS += -mcpu=$(ARM_CPU) |
| HANDLED_CORE := true |
| endif |
| ifeq ($(ARM_CPU),arm7tdmi) |
| DEFINES += \ |
| ARM_ISA_ARMv4=1 \ |
| ARM_WITH_THUMB=1 \ |
| ARM_CPU_ARM7=1 |
| CFLAGS += -mcpu=$(ARM_CPU) |
| HANDLED_CORE := true |
| endif |
| |
| ifneq ($(HANDLED_CORE),true) |
| $(warning $(LOCAL_DIR)/rules.mk doesnt have logic for arm core $(ARM_CPU)) |
| $(warning this is likely to be broken) |
| endif |
| |
| THUMBCFLAGS := |
| THUMBINTERWORK := |
| ifeq ($(ENABLE_THUMB),true) |
| THUMBCFLAGS := -mthumb -D__thumb__ |
| THUMBINTERWORK := -mthumb-interwork |
| endif |
| |
| INCLUDES += \ |
| -I$(LOCAL_DIR)/include |
| |
| BOOTOBJS += \ |
| $(LOCAL_DIR)/crt0.o |
| |
| OBJS += \ |
| $(LOCAL_DIR)/arch.Ao \ |
| $(LOCAL_DIR)/asm.o \ |
| $(LOCAL_DIR)/cache.o \ |
| $(LOCAL_DIR)/cache-ops.o \ |
| $(LOCAL_DIR)/ops.o \ |
| $(LOCAL_DIR)/exceptions.o \ |
| $(LOCAL_DIR)/faults.o \ |
| $(LOCAL_DIR)/mmu.o \ |
| $(LOCAL_DIR)/thread.o \ |
| $(LOCAL_DIR)/dcc.o |
| |
| # set the default toolchain to arm eabi and set a #define |
| TOOLCHAIN_PREFIX ?= arm-eabi- |
| ifeq ($(TOOLCHAIN_PREFIX),arm-none-linux-gnueabi-) |
| # XXX test for EABI better than this |
| # eabi compilers dont need this |
| THUMBINTERWORK:= |
| endif |
| |
| CFLAGS += $(THUMBINTERWORK) |
| |
| # make sure some bits were set up |
| MEMVARS_SET := 0 |
| ifneq ($(MEMBASE),) |
| MEMVARS_SET := 1 |
| endif |
| ifneq ($(MEMSIZE),) |
| MEMVARS_SET := 1 |
| endif |
| ifeq ($(MEMVARS_SET),0) |
| $(error missing MEMBASE or MEMSIZE variable, please set in target rules.mk) |
| endif |
| |
| LIBGCC := $(shell $(TOOLCHAIN_PREFIX)gcc $(CFLAGS) $(THUMBCFLAGS) -print-libgcc-file-name) |
| #$(info LIBGCC = $(LIBGCC)) |
| |
| # potentially generated files that should be cleaned out with clean make rule |
| GENERATED += \ |
| $(BUILDDIR)/system-onesegment.ld \ |
| $(BUILDDIR)/system-twosegment.ld |
| |
| # rules for generating the linker scripts |
| |
| $(BUILDDIR)/system-onesegment.ld: $(LOCAL_DIR)/system-onesegment.ld |
| @echo generating $@ |
| @$(MKDIR) |
| $(NOECHO)sed "s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/" < $< > $@ |
| |
| $(BUILDDIR)/system-twosegment.ld: $(LOCAL_DIR)/system-twosegment.ld |
| @echo generating $@ |
| @$(MKDIR) |
| $(NOECHO)sed "s/%ROMBASE%/$(ROMBASE)/;s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/" < $< > $@ |
| |