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|
KBUILD_DEFCONFIG := qemu-malta_defconfig
#
# Select the object file format to substitute into the linker script.
#
ifdef CONFIG_CPU_LITTLE_ENDIAN
32bit-emul = elf32ltsmip
64bit-emul = elf64ltsmip
else
32bit-emul = elf32btsmip
64bit-emul = elf64btsmip
endif
KBUILD_CPPFLAGS += -D__MIPS__ -fno-strict-aliasing -fno-merge-constants
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += -Wall -Wstrict-prototypes \
-Wno-uninitialized -Wno-format -Wno-main
ifdef CONFIG_32BIT
ld-emul = $(32bit-emul)
cflags-y += -mabi=32
endif
ifdef CONFIG_64BIT
ld-emul = $(64bit-emul)
cflags-y += -mabi=64
endif
undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
ifdef CONFIG_CPU_BIG_ENDIAN
cflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
mips-ldflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB )
endif
ifdef CONFIG_CPU_LITTLE_ENDIAN
cflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
mips-ldflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL )
endif
KBUILD_LDFLAGS += $(mips-ldflags-y) -m $(ld-emul)
LDFLAGS_barebox += $(mips-ldflags-y)
LDFLAGS_pbl += $(mips-ldflags-y)
#
# CPU-dependent compiler/assembler options for optimization.
#
cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) -Wa,-mips32 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) -Wa,-mips32r2 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) -Wa,-mips64 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) -Wa,-mips64r2 -Wa,--trap
cflags-$(CONFIG_CPU_GS232) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) -Wa,-mips32r2 -Wa,--trap
KBUILD_CPPFLAGS += -DTEXT_BASE=$(CONFIG_TEXT_BASE)
ifndef CONFIG_MODULES
# Add cleanup flags
KBUILD_CPPFLAGS += -fdata-sections -ffunction-sections
LDFLAGS_barebox += -static --gc-sections --emit-relocs
endif
ifdef CONFIG_IMAGE_COMPRESSION
KBUILD_BINARY := arch/mips/pbl/zbarebox.bin
KBUILD_TARGET := zbarebox.bin
$(KBUILD_BINARY): $(KBUILD_TARGET)
else
KBUILD_BINARY := barebox.bin
KBUILD_TARGET := barebox.bin
endif
LDFLAGS_barebox += -nostdlib
machine-$(CONFIG_MACH_MIPS_MALTA) := malta
machine-$(CONFIG_MACH_MIPS_AR231X) := ar231x
machine-$(CONFIG_MACH_MIPS_ATH79) := ath79
machine-$(CONFIG_MACH_MIPS_BCM47XX) := bcm47xx
machine-$(CONFIG_MACH_MIPS_LOONGSON) := loongson
machine-$(CONFIG_MACH_MIPS_XBURST) := xburst
machdirs := $(patsubst %,arch/mips/mach-%/,$(machine-y))
KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs))
ifneq ($(machine-y),)
MACH := arch/mips/mach-$(machine-y)/
else
MACH :=
endif
common-y += $(MACH)
common-y += arch/mips/lib/
common-y += arch/mips/boot/
common-y += arch/mips/boards/
KBUILD_CPPFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(cflags-y)
lds-$(CONFIG_GENERIC_LINKER_SCRIPT) := arch/mips/lib/barebox.lds
cmd_barebox__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_barebox) -o $@ \
-T $(BAREBOX_LDS) \
--whole-archive $(BAREBOX_OBJS) --no-whole-archive \
$(filter-out $(BAREBOX_LDS) $(BAREBOX_OBJS) FORCE ,$^); \
$(objtree)/scripts/mips-relocs $@
CLEAN_FILES += arch/mips/lib/barebox.lds barebox.map barebox.S
pbl := arch/mips/pbl
zbarebox.S zbarebox.bin zbarebox: barebox.bin
$(Q)$(MAKE) $(build)=$(pbl) $(pbl)/$@
archclean:
$(MAKE) $(clean)=$(pbl)
dts := arch/mips/dts
%.dtb: scripts
$(Q)$(MAKE) $(build)=$(dts) $(dts)/$@
common-$(CONFIG_OFTREE) += arch/mips/dts/
KBUILD_IMAGE ?= $(KBUILD_BINARY)
|
