ee6d1184c2b1b557fef8bef69a1ae9cf2c90daa3
[sfrench/cifs-2.6.git] / arch / arc / Makefile
1 # SPDX-License-Identifier: GPL-2.0-only
2 #
3 # Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
4 #
5
6 KBUILD_DEFCONFIG := nsim_hs_defconfig
7
8 ifeq ($(CROSS_COMPILE),)
9 CROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux-)
10 endif
11
12 cflags-y        += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
13 cflags-$(CONFIG_ISA_ARCOMPACT)  += -mA7
14 cflags-$(CONFIG_ISA_ARCV2)      += -mcpu=hs38
15
16 ifdef CONFIG_ARC_CURR_IN_REG
17 # For a global register defintion, make sure it gets passed to every file
18 # We had a customer reported bug where some code built in kernel was NOT using
19 # any kernel headers, and missing the r25 global register
20 # Can't do unconditionally because of recursive include issues
21 # due to <linux/thread_info.h>
22 LINUXINCLUDE    +=  -include $(srctree)/arch/arc/include/asm/current.h
23 endif
24
25 cflags-y                                += -fsection-anchors
26
27 cflags-$(CONFIG_ARC_HAS_LLSC)           += -mlock
28 cflags-$(CONFIG_ARC_HAS_SWAPE)          += -mswape
29
30 ifdef CONFIG_ISA_ARCV2
31
32 ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
33 cflags-y                                += -munaligned-access
34 else
35 cflags-y                                += -mno-unaligned-access
36 endif
37
38 ifndef CONFIG_ARC_HAS_LL64
39 cflags-y                                += -mno-ll64
40 endif
41
42 ifndef CONFIG_ARC_HAS_DIV_REM
43 cflags-y                                += -mno-div-rem
44 endif
45
46 endif
47
48 cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI)
49 cflags-$(CONFIG_ARC_DW2_UNWIND)         += -fasynchronous-unwind-tables $(cfi)
50
51 ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
52 # Generic build system uses -O2, we want -O3
53 # Note: No need to add to cflags-y as that happens anyways
54 #
55 # Disable the false maybe-uninitialized warings gcc spits out at -O3
56 ARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,)
57 endif
58
59 # small data is default for elf32 tool-chain. If not usable, disable it
60 # This also allows repurposing GP as scratch reg to gcc reg allocator
61 disable_small_data := y
62 cflags-$(disable_small_data)            += -mno-sdata -fcall-used-gp
63
64 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -mbig-endian
65 ldflags-$(CONFIG_CPU_BIG_ENDIAN)        += -EB
66
67 LIBGCC  = $(shell $(CC) $(cflags-y) --print-libgcc-file-name)
68
69 # Modules with short calls might break for calls into builtin-kernel
70 KBUILD_CFLAGS_MODULE    += -mlong-calls -mno-millicode
71
72 # Finally dump eveything into kernel build system
73 KBUILD_CFLAGS   += $(cflags-y)
74 KBUILD_AFLAGS   += $(KBUILD_CFLAGS)
75 KBUILD_LDFLAGS  += $(ldflags-y)
76
77 head-y          := arch/arc/kernel/head.o
78
79 # See arch/arc/Kbuild for content of core part of the kernel
80 core-y          += arch/arc/
81
82 # w/o this dtb won't embed into kernel binary
83 core-y          += arch/arc/boot/dts/
84
85 core-y                          += arch/arc/plat-sim/
86 core-$(CONFIG_ARC_PLAT_TB10X)   += arch/arc/plat-tb10x/
87 core-$(CONFIG_ARC_PLAT_AXS10X)  += arch/arc/plat-axs10x/
88 core-$(CONFIG_ARC_PLAT_EZNPS)   += arch/arc/plat-eznps/
89 core-$(CONFIG_ARC_SOC_HSDK)     += arch/arc/plat-hsdk/
90
91 ifdef CONFIG_ARC_PLAT_EZNPS
92 KBUILD_CPPFLAGS += -I$(srctree)/arch/arc/plat-eznps/include
93 endif
94
95 drivers-$(CONFIG_OPROFILE)      += arch/arc/oprofile/
96
97 libs-y          += arch/arc/lib/ $(LIBGCC)
98
99 boot            := arch/arc/boot
100
101 #default target for make without any arguments.
102 KBUILD_IMAGE    := $(boot)/bootpImage
103
104 all:    bootpImage
105 bootpImage: vmlinux
106
107 boot_targets += uImage uImage.bin uImage.gz
108
109 $(boot_targets): vmlinux
110         $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
111
112 archclean:
113         $(Q)$(MAKE) $(clean)=$(boot)