7102838b49
This lets some code decide whether or not there's any mmu present to use. Also kernel VM will complain if it isn't set as an extra safety.
63 lines
1.5 KiB
Makefile
63 lines
1.5 KiB
Makefile
LOCAL_DIR := $(GET_LOCAL_DIR)
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MODULE := $(LOCAL_DIR)
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MODULE_SRCS += \
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$(LOCAL_DIR)/start.S \
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$(LOCAL_DIR)/arch.c \
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$(LOCAL_DIR)/asm.S \
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$(LOCAL_DIR)/exceptions.c \
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$(LOCAL_DIR)/thread.c \
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$(LOCAL_DIR)/cache-ops.c \
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$(LOCAL_DIR)/mmu.c \
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$(LOCAL_DIR)/faults.c
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GLOBAL_DEFINES += \
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SMP_MAX_CPUS=1
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# set the default toolchain to or1k elf and set a #define
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ifndef TOOLCHAIN_PREFIX
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TOOLCHAIN_PREFIX := or1k-elf-
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endif
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cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc /dev/null 2>&1`"; \
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then echo "$(2)"; else echo "$(3)"; fi ;)
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ARCH_OPTFLAGS := -O2
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ARCH_LDFLAGS += -relax
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LIBGCC := $(shell $(TOOLCHAIN_PREFIX)gcc $(GLOBAL_COMPILEFLAGS) $(ARCH_COMPILEFLAGS) -print-libgcc-file-name)
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$(info LIBGCC = $(LIBGCC))
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KERNEL_BASE ?= $(MEMBASE)
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KERNEL_LOAD_OFFSET ?= 0
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GLOBAL_DEFINES += \
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KERNEL_BASE=$(KERNEL_BASE) \
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KERNEL_LOAD_OFFSET=$(KERNEL_LOAD_OFFSET)
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GLOBAL_DEFINES += \
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MEMBASE=$(MEMBASE) \
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MEMSIZE=$(MEMSIZE)
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# we have an mmu
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WITH_KERNEL_VM=1
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GLOBAL_DEFINES += \
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ARCH_HAS_MMU=1
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# potentially generated files that should be cleaned out with clean make rule
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GENERATED += \
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$(BUILDDIR)/linker.ld
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# rules for generating the linker
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$(BUILDDIR)/linker.ld: $(LOCAL_DIR)/linker.ld $(wildcard arch/*.ld)
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@echo generating $@
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@$(MKDIR)
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$(NOECHO)sed "s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/;s/%KERNEL_BASE%/$(KERNEL_BASE)/;s/%KERNEL_LOAD_OFFSET%/$(KERNEL_LOAD_OFFSET)/" < $< > $@
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LINKER_SCRIPT += $(BUILDDIR)/linker.ld
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include make/module.mk
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