2d567e437d
Require the platform or arch to provide it. The default was pretty obsolete, assuming a 32bit arch with a split 50/50 mapping. May as well make it a forced arch thing so that it's known to be correct. Had to define it for OR1K, it was already defined for all the other (known) architectures.
74 lines
1.8 KiB
Makefile
74 lines
1.8 KiB
Makefile
LOCAL_DIR := $(GET_LOCAL_DIR)
|
|
|
|
MODULE := $(LOCAL_DIR)
|
|
|
|
MODULE_SRCS += \
|
|
$(LOCAL_DIR)/start.S \
|
|
$(LOCAL_DIR)/arch.c \
|
|
$(LOCAL_DIR)/asm.S \
|
|
$(LOCAL_DIR)/exceptions.c \
|
|
$(LOCAL_DIR)/thread.c \
|
|
$(LOCAL_DIR)/cache-ops.c \
|
|
$(LOCAL_DIR)/mmu.c \
|
|
$(LOCAL_DIR)/faults.c
|
|
|
|
GLOBAL_DEFINES += \
|
|
SMP_MAX_CPUS=1
|
|
|
|
# set the default toolchain to or1k elf and set a #define
|
|
ifndef TOOLCHAIN_PREFIX
|
|
TOOLCHAIN_PREFIX := or1k-elf-
|
|
endif
|
|
|
|
cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc /dev/null 2>&1`"; \
|
|
then echo "$(2)"; else echo "$(3)"; fi ;)
|
|
|
|
ARCH_OPTFLAGS := -O2
|
|
|
|
ARCH_LDFLAGS += -relax
|
|
|
|
LIBGCC := $(shell $(TOOLCHAIN_PREFIX)gcc $(GLOBAL_COMPILEFLAGS) $(ARCH_COMPILEFLAGS) -print-libgcc-file-name)
|
|
$(info LIBGCC = $(LIBGCC))
|
|
|
|
KERNEL_BASE ?= $(MEMBASE)
|
|
KERNEL_LOAD_OFFSET ?= 0
|
|
|
|
GLOBAL_DEFINES += \
|
|
KERNEL_BASE=$(KERNEL_BASE) \
|
|
KERNEL_LOAD_OFFSET=$(KERNEL_LOAD_OFFSET)
|
|
|
|
GLOBAL_DEFINES += \
|
|
MEMBASE=$(MEMBASE) \
|
|
MEMSIZE=$(MEMSIZE)
|
|
|
|
# we have an mmu
|
|
WITH_KERNEL_VM=1
|
|
|
|
# kernel address space definitions
|
|
# TODO: are these correct?
|
|
KERNEL_ASPACE_BASE := 0x80000000
|
|
KERNEL_ASPACE_SIZE := 0x80000000
|
|
USER_ASPACE_BASE := 0x01000000
|
|
USER_ASPACE_SIZE := 0x7e000000
|
|
|
|
GLOBAL_DEFINES += \
|
|
ARCH_HAS_MMU=1 \
|
|
KERNEL_ASPACE_BASE=$(KERNEL_ASPACE_BASE) \
|
|
KERNEL_ASPACE_SIZE=$(KERNEL_ASPACE_SIZE) \
|
|
USER_ASPACE_BASE=$(USER_ASPACE_BASE) \
|
|
USER_ASPACE_SIZE=$(USER_ASPACE_SIZE)
|
|
|
|
# potentially generated files that should be cleaned out with clean make rule
|
|
GENERATED += \
|
|
$(BUILDDIR)/linker.ld
|
|
|
|
# rules for generating the linker
|
|
$(BUILDDIR)/linker.ld: $(LOCAL_DIR)/linker.ld $(wildcard arch/*.ld)
|
|
@echo generating $@
|
|
@$(MKDIR)
|
|
$(NOECHO)sed "s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/;s/%KERNEL_BASE%/$(KERNEL_BASE)/;s/%KERNEL_LOAD_OFFSET%/$(KERNEL_LOAD_OFFSET)/" < $< > $@
|
|
|
|
LINKER_SCRIPT += $(BUILDDIR)/linker.ld
|
|
|
|
include make/module.mk
|