2 # This file is subject to the terms and conditions of the GNU General Public
3 # License. See the file "COPYING" in the main directory of this archive
6 # Copyright (C) 2001 - 2005 Tensilica Inc.
7 # Copyright (C) 2014 Cadence Design Systems Inc.
9 # This file is included by the global makefile so that you can add your own
10 # architecture-specific flags and dependencies. Remember to do have actions
11 # for "archclean" and "archdep" for cleaning up and making dependencies for
15 # (Use VAR=<xtensa_config> to use another default compiler.)
17 variant-y
:= $(patsubst "%",%,$(CONFIG_XTENSA_VARIANT_NAME
))
19 VARIANT
= $(variant-y
)
24 CROSS_COMPILE
= xtensa_
$(VARIANT
)-
29 # Platform configuration
31 platform-
$(CONFIG_XTENSA_PLATFORM_XT2000
) := xt2000
32 platform-
$(CONFIG_XTENSA_PLATFORM_ISS
) := iss
33 platform-
$(CONFIG_XTENSA_PLATFORM_XTFPGA
) := xtfpga
35 PLATFORM
= $(platform-y
)
37 # temporarily until string.h is fixed
38 KBUILD_CFLAGS
+= -ffreestanding
-D__linux__
39 KBUILD_CFLAGS
+= -pipe
-mlongcalls
-mtext-section-literals
40 KBUILD_CFLAGS
+= $(call cc-option
,-mforce-no-pic
,)
41 KBUILD_CFLAGS
+= $(call cc-option
,-mno-serialize-volatile
,)
43 KBUILD_AFLAGS
+= -mlongcalls
-mtext-section-literals
45 ifneq ($(CONFIG_LD_NO_RELAX
),)
46 KBUILD_LDFLAGS
:= --no-relax
49 CHECKFLAGS
+= -D
$(if
$(CONFIG_CPU_BIG_ENDIAN
),__XTENSA_EB__
,__XTENSA_EL__
)
51 vardirs
:= $(patsubst %,arch
/xtensa
/variants
/%/,$(variant-y
))
52 plfdirs
:= $(patsubst %,arch
/xtensa
/platforms
/%/,$(platform-y
))
54 KBUILD_CPPFLAGS
+= $(patsubst %,-I
$(srctree
)/%include,$(vardirs
) $(plfdirs
))
56 KBUILD_DEFCONFIG
:= iss_defconfig
58 # Only build variant and/or platform if it includes a Makefile
60 buildvar
:= $(shell test -e
$(srctree
)/arch
/xtensa
/variants
/$(VARIANT
)/Makefile
&& echo arch
/xtensa
/variants
/$(VARIANT
)/)
61 buildplf
:= $(shell test -e
$(srctree
)/arch
/xtensa
/platforms
/$(PLATFORM
)/Makefile
&& echo arch
/xtensa
/platforms
/$(PLATFORM
)/)
65 LIBGCC
:= $(shell $(CC
) $(KBUILD_CFLAGS
) -print-libgcc-file-name
)
67 head-y
:= arch
/xtensa
/kernel
/head.o
68 core-y
+= arch
/xtensa
/kernel
/ arch
/xtensa
/mm
/
69 core-y
+= $(buildvar
) $(buildplf
)
70 core-y
+= arch
/xtensa
/boot
/dts
/
72 libs-y
+= arch
/xtensa
/lib
/ $(LIBGCC
)
74 boot
:= arch
/xtensa
/boot
76 all Image zImage uImage xipImage
: vmlinux
77 $(Q
)$(MAKE
) $(build
)=$(boot
) $@
80 $(Q
)$(MAKE
) $(build
)=arch
/xtensa
/kernel
/syscalls
all
83 @echo
'* Image - Kernel ELF image with reset vector'
84 @echo
'* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
85 @echo
'* uImage - U-Boot wrapped image'
86 @echo
' xipImage - XIP image'