193 lines
5.2 KiB
Makefile
193 lines
5.2 KiB
Makefile
#
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# Select the object file format to substitute into the linker script.
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#
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ifdef CONFIG_CPU_LITTLE_ENDIAN
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32bit-emul = elf32ltsmip
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64bit-emul = elf64ltsmip
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else
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32bit-emul = elf32btsmip
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64bit-emul = elf64btsmip
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endif
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CPPFLAGS += -D__MIPS__ -fno-strict-aliasing -fno-merge-constants
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cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
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cflags-y += -Wall -Wmissing-prototypes -Wstrict-prototypes \
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-Wno-uninitialized -Wno-format -Wno-main
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ifdef CONFIG_32BIT
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ld-emul = $(32bit-emul)
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cflags-y += -mabi=32
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endif
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ifdef CONFIG_64BIT
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ld-emul = $(64bit-emul)
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cflags-y += -mabi=64
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endif
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undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
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undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
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predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
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predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
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ifdef CONFIG_CPU_BIG_ENDIAN
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cflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
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ldflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB )
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endif
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ifdef CONFIG_CPU_LITTLE_ENDIAN
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cflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
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ldflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL )
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endif
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LDFLAGS += $(ldflags-y) -m $(ld-emul)
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#
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# CPU-dependent compiler/assembler options for optimization.
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#
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cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) -Wa,-mips32 -Wa,--trap
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cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) -Wa,-mips32r2 -Wa,--trap
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cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) -Wa,-mips64 -Wa,--trap
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cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) -Wa,-mips64r2 -Wa,--trap
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cflags-$(CONFIG_CPU_LOONGSON1) += \
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$(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
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-Wa,-mips32r2 -Wa,--trap
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CPPFLAGS += -DTEXT_BASE=$(CONFIG_TEXT_BASE)
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ifndef CONFIG_MODULES
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# Add cleanup flags
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CPPFLAGS += -fdata-sections -ffunction-sections
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LDFLAGS_barebox += -static --gc-sections
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endif
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ifdef CONFIG_IMAGE_COMPRESSION
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KBUILD_BINARY := arch/mips/pbl/zbarebox.bin
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KBUILD_TARGET := zbarebox.bin
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$(KBUILD_BINARY): $(KBUILD_TARGET)
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else
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KBUILD_BINARY := barebox.bin
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KBUILD_TARGET := barebox.bin
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endif
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LDFLAGS_barebox += -nostdlib
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machine-$(CONFIG_MACH_MIPS_MALTA) := malta
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board-$(CONFIG_BOARD_QEMU_MALTA) := qemu-malta
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machine-$(CONFIG_MACH_MIPS_AR231X) := ar231x
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board-$(CONFIG_BOARD_NETGEAR_WG102) := netgear-wg102
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machine-$(CONFIG_MACH_MIPS_ATH79) := ath79
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board-$(CONFIG_BOARD_TPLINK_MR3020) := tplink-mr3020
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machine-$(CONFIG_MACH_MIPS_BCM47XX) := bcm47xx
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board-$(CONFIG_BOARD_DLINK_DIR320) := dlink-dir-320
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machine-$(CONFIG_MACH_MIPS_LOONGSON) := loongson
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board-$(CONFIG_BOARD_LOONGSON_TECH_LS1B) := loongson-ls1b
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machine-$(CONFIG_MACH_MIPS_XBURST) := xburst
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board-$(CONFIG_BOARD_RZX50) := ritmix-rzx50
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machdirs := $(patsubst %,arch/mips/mach-%/,$(machine-y))
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ifeq ($(KBUILD_SRC),)
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CPPFLAGS += $(patsubst %,-I%include,$(machdirs))
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else
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CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs))
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endif
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ifeq ($(incdir-y),)
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incdir-y := $(machine-y)
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endif
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INCDIR := arch-$(incdir-y)
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ifneq ($(board-y),)
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BOARD := arch/mips/boards/$(board-y)/
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else
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BOARD :=
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endif
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ifeq ($(KBUILD_SRC),)
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CPPFLAGS += -I$(BOARD)/include
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else
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CPPFLAGS += -I$(srctree)/$(BOARD)/include
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endif
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ifneq ($(machine-y),)
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MACH := arch/mips/mach-$(machine-y)/
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else
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MACH :=
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endif
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common-y += $(BOARD) $(MACH)
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common-y += arch/mips/lib/
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common-y += arch/mips/boot/
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common-$(CONFIG_BUILTIN_DTB) += arch/mips/dts/
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CPPFLAGS += $(cflags-y)
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CFLAGS += $(cflags-y)
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lds-$(CONFIG_GENERIC_LINKER_SCRIPT) := arch/mips/lib/barebox.lds
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CLEAN_FILES += arch/mips/lib/barebox.lds barebox.map barebox.S
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pbl := arch/mips/pbl
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zbarebox.S zbarebox.bin zbarebox: barebox.bin
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$(Q)$(MAKE) $(build)=$(pbl) $(pbl)/$@
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archclean:
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$(MAKE) $(clean)=$(pbl)
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dts := arch/mips/dts
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%.dtb: scripts
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$(Q)$(MAKE) $(build)=$(dts) $(dts)/$@
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KBUILD_IMAGE ?= $(KBUILD_BINARY)
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#####
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# Generate asm-offsets.h
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#
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offsets-file := include/generated/asm-offsets.h
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always += $(offsets-file)
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targets += $(offsets-file)
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targets += arch/$(SRCARCH)/lib/asm-offsets.s
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# Default sed regexp - multiline due to syntax constraints
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define sed-y
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"/^->/{s:->#\(.*\):/* \1 */:; \
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s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
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s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
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s:->::; p;}"
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endef
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quiet_cmd_offsets = GEN $@
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define cmd_offsets
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(set -e; \
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echo "#ifndef __ASM_OFFSETS_H__"; \
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echo "#define __ASM_OFFSETS_H__"; \
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echo "/*"; \
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echo " * DO NOT MODIFY."; \
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echo " *"; \
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echo " * This file was generated by Kbuild"; \
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echo " *"; \
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echo " */"; \
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echo ""; \
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sed -ne $(sed-y) $<; \
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echo ""; \
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echo "#endif" ) > $@
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endef
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# We use internal kbuild rules to avoid the "is up to date" message from make
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arch/$(SRCARCH)/lib/asm-offsets.s: arch/$(SRCARCH)/lib/asm-offsets.c FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cc_s_c)
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$(obj)/$(offsets-file): arch/$(SRCARCH)/lib/asm-offsets.s Makefile
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$(call cmd,offsets)
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