arch/csky/Makefile

Source file repositories/reference/linux-study-clean/arch/csky/Makefile

File Facts

System
Linux kernel
Corpus path
arch/csky/Makefile
Extension
[no extension]
Size
1530 bytes
Lines
79
Domain
Architecture Layer
Bucket
arch/csky
Inferred role
Architecture Layer: build/configuration rule
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0-only
OBJCOPYFLAGS		:=-O binary
GZFLAGS			:=-9

ifdef CONFIG_CPU_HAS_FPU
FPUEXT = f
endif

ifdef CONFIG_CPU_HAS_VDSP
VDSPEXT = v
endif

ifdef CONFIG_CPU_HAS_TEE
TEEEXT = t
endif

ifdef CONFIG_CPU_CK610
CPUTYPE	= ck610
CSKYABI	= abiv1
endif

ifdef CONFIG_CPU_CK810
CPUTYPE = ck810
CSKYABI	= abiv2
endif

ifdef CONFIG_CPU_CK807
CPUTYPE = ck807
CSKYABI	= abiv2
endif

ifdef CONFIG_CPU_CK860
CPUTYPE = ck860
CSKYABI	= abiv2
endif

ifneq ($(CSKYABI),)
MCPU_STR = $(CPUTYPE)$(FPUEXT)$(VDSPEXT)$(TEEEXT)
KBUILD_CFLAGS += -mcpu=$(CPUTYPE) -Wa,-mcpu=$(MCPU_STR)
KBUILD_CFLAGS += -DCSKYCPU_DEF_NAME=\"$(MCPU_STR)\"
KBUILD_CFLAGS += -msoft-float -mdiv
KBUILD_CFLAGS += -fno-tree-vectorize
endif

KBUILD_CFLAGS += -pipe
ifeq ($(CSKYABI),abiv2)
KBUILD_CFLAGS += -mno-stack-size
endif

ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS += -mbacktrace
endif

abidirs := $(patsubst %,arch/csky/%/,$(CSKYABI))
KBUILD_CFLAGS += $(patsubst %,-I$(srctree)/%inc,$(abidirs))

KBUILD_CPPFLAGS += -mlittle-endian
LDFLAGS += -EL

KBUILD_AFLAGS += $(KBUILD_CFLAGS)

core-y += arch/csky/$(CSKYABI)/

libs-y += arch/csky/lib/ \
	$(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name)

boot := arch/csky/boot

all: zImage

Annotation

Implementation Notes