| Travis Geiselbrecht | 1d0df69 | 2008-09-01 02:26:09 -0700 | [diff] [blame^] | 1 | LOCAL_DIR := $(GET_LOCAL_DIR) |
| 2 | |
| 3 | TOOLCHAIN_PREFIX ?= arm-elf- |
| 4 | |
| 5 | ENABLE_THUMB ?= true |
| 6 | |
| 7 | CFLAGS += -finline |
| 8 | |
| 9 | DEFINES += \ |
| 10 | ARM_CPU_$(ARM_CPU)=1 |
| 11 | |
| 12 | # do set some options based on the cpu core |
| 13 | HANDLED_CORE := false |
| 14 | ifeq ($(ARM_CPU),cortex-a8) |
| 15 | DEFINES += \ |
| 16 | ARM_WITH_CP15=1 \ |
| 17 | ARM_WITH_MMU=1 \ |
| 18 | ARM_ISA_ARMv7=1 \ |
| 19 | ARM_WITH_VFP=1 \ |
| 20 | ARM_WITH_NEON=1 \ |
| 21 | ARM_WITH_THUMB=1 \ |
| 22 | ARM_WITH_THUMB2=1 \ |
| 23 | ARM_WITH_CACHE=1 \ |
| 24 | ARM_WITH_L2=1 |
| 25 | #CFLAGS += -mcpu=$(ARM_CPU) |
| 26 | CFLAGS += -mcpu=arm1136jf-s # compiler doesn't understand cortex yet |
| 27 | HANDLED_CORE := true |
| 28 | #CFLAGS += -mfpu=vfp -mfloat-abi=softfp |
| 29 | endif |
| 30 | ifeq ($(ARM_CPU),arm1176jzf-s) |
| 31 | DEFINES += \ |
| 32 | ARM_WITH_CP15=1 \ |
| 33 | ARM_WITH_MMU=1 \ |
| 34 | ARM_ISA_ARMv6=1 \ |
| 35 | ARM_WITH_VFP=1 \ |
| 36 | ARM_WITH_THUMB=1 \ |
| 37 | ARM_WITH_CACHE=1 \ |
| 38 | ARM_CPU_ARM1136=1 |
| 39 | CFLAGS += -mcpu=$(ARM_CPU) |
| 40 | HANDLED_CORE := true |
| 41 | endif |
| 42 | ifeq ($(ARM_CPU),arm926ej-s) |
| 43 | DEFINES += \ |
| 44 | ARM_WITH_CP15=1 \ |
| 45 | ARM_WITH_MMU=1 \ |
| 46 | ARM_ISA_ARMv5E=1 \ |
| 47 | ARM_WITH_THUMB=1 \ |
| 48 | ARM_WITH_CACHE=1 \ |
| 49 | ARM_CPU_ARM9=1 \ |
| 50 | ARM_CPU_ARM926=1 |
| 51 | CFLAGS += -mcpu=$(ARM_CPU) |
| 52 | HANDLED_CORE := true |
| 53 | endif |
| 54 | ifeq ($(ARM_CPU),arm7tdmi) |
| 55 | DEFINES += \ |
| 56 | ARM_ISA_ARMv4=1 \ |
| 57 | ARM_WITH_THUMB=1 \ |
| 58 | ARM_CPU_ARM7=1 |
| 59 | CFLAGS += -mcpu=$(ARM_CPU) |
| 60 | HANDLED_CORE := true |
| 61 | endif |
| 62 | |
| 63 | ifneq ($(HANDLED_CORE),true) |
| 64 | $(warning $(LOCAL_DIR)/rules.mk doesnt have logic for arm core $(ARM_CPU)) |
| 65 | $(warning this is likely to be broken) |
| 66 | endif |
| 67 | |
| 68 | THUMBCFLAGS := |
| 69 | THUMBINTERWORK := |
| 70 | ifeq ($(ENABLE_THUMB),true) |
| 71 | THUMBCFLAGS := -mthumb -D__thumb__ |
| 72 | THUMBINTERWORK := -mthumb-interwork |
| 73 | endif |
| 74 | |
| 75 | CFLAGS += $(THUMBINTERWORK) |
| 76 | |
| 77 | INCLUDES += \ |
| 78 | -I$(LOCAL_DIR)/include |
| 79 | |
| 80 | BOOTOBJS += \ |
| 81 | $(LOCAL_DIR)/crt0.o |
| 82 | |
| 83 | OBJS += \ |
| 84 | $(LOCAL_DIR)/arch.Ao \ |
| 85 | $(LOCAL_DIR)/asm.o \ |
| 86 | $(LOCAL_DIR)/cache.o \ |
| 87 | $(LOCAL_DIR)/cache-ops.o \ |
| 88 | $(LOCAL_DIR)/ops.o \ |
| 89 | $(LOCAL_DIR)/exceptions.o \ |
| 90 | $(LOCAL_DIR)/faults.o \ |
| 91 | $(LOCAL_DIR)/mmu.o \ |
| 92 | $(LOCAL_DIR)/thread.o |
| 93 | |
| 94 | # make sure some bits were set up |
| 95 | MEMVARS_SET := 0 |
| 96 | ifneq ($(MEMBASE),) |
| 97 | MEMVARS_SET := 1 |
| 98 | endif |
| 99 | ifneq ($(MEMSIZE),) |
| 100 | MEMVARS_SET := 1 |
| 101 | endif |
| 102 | ifeq ($(MEMVARS_SET),0) |
| 103 | $(error missing MEMBASE or MEMSIZE variable, please set in target rules.mk) |
| 104 | endif |
| 105 | |
| 106 | LIBGCC := $(shell $(TOOLCHAIN_PREFIX)gcc $(CFLAGS) $(THUMBCFLAGS) -print-libgcc-file-name) |
| 107 | #$(info LIBGCC = $(LIBGCC)) |
| 108 | |
| 109 | # potentially generated files that should be cleaned out with clean make rule |
| 110 | GENERATED += \ |
| 111 | $(BUILDDIR)/system-onesegment.ld \ |
| 112 | $(BUILDDIR)/system-twosegment.ld |
| 113 | |
| 114 | # rules for generating the linker scripts |
| 115 | |
| 116 | $(BUILDDIR)/system-onesegment.ld: $(LOCAL_DIR)/system-onesegment.ld |
| 117 | @echo generating $@ |
| 118 | @$(MKDIR) |
| 119 | $(NOECHO)sed "s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/" < $< > $@ |
| 120 | |
| 121 | $(BUILDDIR)/system-twosegment.ld: $(LOCAL_DIR)/system-twosegment.ld |
| 122 | @echo generating $@ |
| 123 | @$(MKDIR) |
| 124 | $(NOECHO)sed "s/%ROMBASE%/$(ROMBASE)/;s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/" < $< > $@ |
| 125 | |