Makefile 3.23 KB
Newer Older
1 2 3 4 5 6
#
# This file is subject to the terms and conditions of the GNU General Public
# License.  See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 2001 - 2005  Tensilica Inc.
7
# Copyright (C) 2014 Cadence Design Systems Inc.
8 9 10 11 12 13 14
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture

# Core configuration.
15
# (Use VAR=<xtensa_config> to use another default compiler.)
16

17
variant-y := $(patsubst "%",%,$(CONFIG_XTENSA_VARIANT_NAME))
18

19 20
VARIANT = $(variant-y)
export VARIANT
21

22 23 24 25 26 27 28 29 30 31 32 33
# Test for cross compiling

ifneq ($(VARIANT),)
  COMPILE_ARCH = $(shell uname -m)

  ifneq ($(COMPILE_ARCH), xtensa)
    ifndef CROSS_COMPILE
      CROSS_COMPILE = xtensa_$(VARIANT)-
    endif
  endif
endif

34 35 36 37
# Platform configuration

platform-$(CONFIG_XTENSA_PLATFORM_XT2000)	:= xt2000
platform-$(CONFIG_XTENSA_PLATFORM_ISS)		:= iss
38
platform-$(CONFIG_XTENSA_PLATFORM_XTFPGA)	:= xtfpga
39 40 41 42

PLATFORM = $(platform-y)
export PLATFORM

43
# temporarily until string.h is fixed
Max Filippov's avatar
Max Filippov committed
44
KBUILD_CFLAGS += -ffreestanding -D__linux__
45
KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals
46
KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
47
KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,)
48

49 50
KBUILD_AFLAGS += -mlongcalls -mtext-section-literals

51
ifneq ($(CONFIG_LD_NO_RELAX),)
52
KBUILD_LDFLAGS := --no-relax
53 54
endif

55
ifeq ($(shell echo __XTENSA_EB__ | $(CC) -E - | grep -v "\#"),1)
56
CHECKFLAGS += -D__XTENSA_EB__
57
KBUILD_CPPFLAGS += -DCONFIG_CPU_BIG_ENDIAN
58
endif
59
ifeq ($(shell echo __XTENSA_EL__ | $(CC) -E - | grep -v "\#"),1)
60
CHECKFLAGS += -D__XTENSA_EL__
61
KBUILD_CPPFLAGS += -DCONFIG_CPU_LITTLE_ENDIAN
62 63
endif

64 65 66 67 68 69 70 71 72
vardirs := $(patsubst %,arch/xtensa/variants/%/,$(variant-y))
plfdirs := $(patsubst %,arch/xtensa/platforms/%/,$(platform-y))

ifeq ($(KBUILD_SRC),)
KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(vardirs) $(plfdirs))
else
KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
endif

73
KBUILD_DEFCONFIG := iss_defconfig
74

75 76
# Only build variant and/or platform if it includes a Makefile

77 78
buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
79 80

# Find libgcc.a
81

82
LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
83 84

head-y		:= arch/xtensa/kernel/head.o
85
core-y		+= arch/xtensa/kernel/ arch/xtensa/mm/
86 87
core-y		+= $(buildvar) $(buildplf)

88
libs-y		+= arch/xtensa/lib/ $(LIBGCC)
dann's avatar
dann committed
89
drivers-$(CONFIG_OPROFILE)	+= arch/xtensa/oprofile/
90

91
ifneq ($(CONFIG_BUILTIN_DTB),"")
92
core-$(CONFIG_OF) += arch/xtensa/boot/dts/
93 94
endif

95 96
boot		:= arch/xtensa/boot

97
all Image zImage uImage: vmlinux
98 99
	$(Q)$(MAKE) $(build)=$(boot) $@

100
%.dtb:
101
	$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
102

103 104 105
dtbs: scripts
	$(Q)$(MAKE) $(build)=$(boot)/dts

106
define archhelp
107
  @echo '* Image       - Kernel ELF image with reset vector'
108
  @echo '* zImage      - Compressed kernel image (arch/xtensa/boot/images/zImage.*)'
109
  @echo '* uImage      - U-Boot wrapped image'
110
  @echo '  dtbs        - Build device tree blobs for enabled boards'
111
endef