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|
#
# 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
CPPFLAGS += -D__MIPS__ -fno-strict-aliasing -fno-merge-constants
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += -Wall -Wmissing-prototypes -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))
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))
ldflags-y += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL )
endif
LDFLAGS += $(ldflags-y) -m $(ld-emul)
#
# CPU-dependent compiler/assembler options for optimization.
#
cflags-$(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_LOONGSON1) += \
$(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
-Wa,-mips32r2 -Wa,--trap
CPPFLAGS += -DTEXT_BASE=$(CONFIG_TEXT_BASE)
ifndef CONFIG_MODULES
# Add cleanup flags
CPPFLAGS += -fdata-sections -ffunction-sections
LDFLAGS_barebox += -static --gc-sections
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
board-$(CONFIG_BOARD_QEMU_MALTA) := qemu-malta
machine-$(CONFIG_MACH_MIPS_AR231X) := ar231x
board-$(CONFIG_BOARD_NETGEAR_WG102) := netgear-wg102
machine-$(CONFIG_MACH_MIPS_ATH79) := ath79
board-$(CONFIG_BOARD_TPLINK_MR3020) := tplink-mr3020
machine-$(CONFIG_MACH_MIPS_BCM47XX) := bcm47xx
board-$(CONFIG_BOARD_DLINK_DIR320) := dlink-dir-320
machine-$(CONFIG_MACH_MIPS_LOONGSON) := loongson
board-$(CONFIG_BOARD_LOONGSON_TECH_LS1B) := loongson-ls1b
machine-$(CONFIG_MACH_MIPS_XBURST) := xburst
board-$(CONFIG_BOARD_RZX50) := ritmix-rzx50
machdirs := $(patsubst %,arch/mips/mach-%/,$(machine-y))
ifeq ($(KBUILD_SRC),)
CPPFLAGS += $(patsubst %,-I%include,$(machdirs))
else
CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs))
endif
ifeq ($(incdir-y),)
incdir-y := $(machine-y)
endif
INCDIR := arch-$(incdir-y)
ifneq ($(board-y),)
BOARD := arch/mips/boards/$(board-y)/
else
BOARD :=
endif
ifeq ($(KBUILD_SRC),)
CPPFLAGS += -I$(BOARD)/include
else
CPPFLAGS += -I$(srctree)/$(BOARD)/include
endif
ifneq ($(machine-y),)
MACH := arch/mips/mach-$(machine-y)/
else
MACH :=
endif
common-y += $(BOARD) $(MACH)
common-y += arch/mips/lib/
common-y += arch/mips/boot/
common-$(CONFIG_BUILTIN_DTB) += arch/mips/dts/
CPPFLAGS += $(cflags-y)
CFLAGS += $(cflags-y)
lds-$(CONFIG_GENERIC_LINKER_SCRIPT) := arch/mips/lib/barebox.lds
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) $(dts)/$@
KBUILD_IMAGE ?= $(KBUILD_BINARY)
#####
# Generate asm-offsets.h
#
offsets-file := include/generated/asm-offsets.h
always += $(offsets-file)
targets += $(offsets-file)
targets += arch/$(SRCARCH)/lib/asm-offsets.s
# Default sed regexp - multiline due to syntax constraints
define sed-y
"/^->/{s:->#\(.*\):/* \1 */:; \
s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
s:->::; p;}"
endef
quiet_cmd_offsets = GEN $@
define cmd_offsets
(set -e; \
echo "#ifndef __ASM_OFFSETS_H__"; \
echo "#define __ASM_OFFSETS_H__"; \
echo "/*"; \
echo " * DO NOT MODIFY."; \
echo " *"; \
echo " * This file was generated by Kbuild"; \
echo " *"; \
echo " */"; \
echo ""; \
sed -ne $(sed-y) $<; \
echo ""; \
echo "#endif" ) > $@
endef
# We use internal kbuild rules to avoid the "is up to date" message from make
arch/$(SRCARCH)/lib/asm-offsets.s: arch/$(SRCARCH)/lib/asm-offsets.c FORCE
$(Q)mkdir -p $(dir $@)
$(call if_changed_dep,cc_s_c)
$(obj)/$(offsets-file): arch/$(SRCARCH)/lib/asm-offsets.s Makefile
$(call cmd,offsets)
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