Commit | Line | Data |
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d2912cb1 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
cfdbc2e1 VG |
2 | # |
3 | # Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | |
4 | # | |
cfdbc2e1 | 5 | |
1681baa7 | 6 | KBUILD_DEFCONFIG := haps_hs_smp_defconfig |
cfdbc2e1 | 7 | |
2bc42bfb AB |
8 | ifeq ($(CROSS_COMPILE),) |
9 | CROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux-) | |
10 | endif | |
11 | ||
74c11e30 | 12 | cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ |
0bdd6e74 | 13 | |
040ece2a | 14 | tune-mcpu-def-$(CONFIG_ISA_ARCOMPACT) := -mcpu=arc700 |
0bdd6e74 EP |
15 | tune-mcpu-def-$(CONFIG_ISA_ARCV2) := -mcpu=hs38 |
16 | ||
17 | ifeq ($(CONFIG_ARC_TUNE_MCPU),"") | |
18 | cflags-y += $(tune-mcpu-def-y) | |
19 | else | |
20 | tune-mcpu := $(shell echo $(CONFIG_ARC_TUNE_MCPU)) | |
21 | tune-mcpu-ok := $(call cc-option-yn, $(tune-mcpu)) | |
22 | ifeq ($(tune-mcpu-ok),y) | |
23 | cflags-y += $(tune-mcpu) | |
24 | else | |
25 | # The flag provided by 'CONFIG_ARC_TUNE_MCPU' option isn't known by this compiler | |
26 | # (probably the compiler is too old). Use ISA default mcpu flag instead as a safe option. | |
27 | $(warning ** WARNING ** CONFIG_ARC_TUNE_MCPU flag '$(tune-mcpu)' is unknown, fallback to '$(tune-mcpu-def-y)') | |
28 | cflags-y += $(tune-mcpu-def-y) | |
29 | endif | |
30 | endif | |
31 | ||
cfdbc2e1 | 32 | |
080c3747 VG |
33 | ifdef CONFIG_ARC_CURR_IN_REG |
34 | # For a global register defintion, make sure it gets passed to every file | |
35 | # We had a customer reported bug where some code built in kernel was NOT using | |
36 | # any kernel headers, and missing the r25 global register | |
8235703e | 37 | # Can't do unconditionally because of recursive include issues |
080c3747 | 38 | # due to <linux/thread_info.h> |
75dd4747 | 39 | LINUXINCLUDE += -include $(srctree)/arch/arc/include/asm/current.h |
080c3747 VG |
40 | endif |
41 | ||
2b52e2a6 | 42 | cflags-y += -fsection-anchors |
cfdbc2e1 | 43 | |
76a08404 VG |
44 | cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock |
45 | cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape | |
46 | ||
d05a76ab AB |
47 | ifdef CONFIG_ISA_ARCV2 |
48 | ||
76551468 EP |
49 | ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS |
50 | cflags-y += -munaligned-access | |
51 | else | |
52 | cflags-y += -mno-unaligned-access | |
53 | endif | |
54 | ||
1f6ccfff | 55 | ifndef CONFIG_ARC_HAS_LL64 |
d05a76ab AB |
56 | cflags-y += -mno-ll64 |
57 | endif | |
58 | ||
59 | ifndef CONFIG_ARC_HAS_DIV_REM | |
60 | cflags-y += -mno-div-rem | |
61 | endif | |
62 | ||
1f6ccfff VG |
63 | endif |
64 | ||
5a205a32 VG |
65 | cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI) |
66 | cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi) | |
6716dbbd | 67 | |
cfdbc2e1 VG |
68 | # small data is default for elf32 tool-chain. If not usable, disable it |
69 | # This also allows repurposing GP as scratch reg to gcc reg allocator | |
70 | disable_small_data := y | |
71 | cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp | |
72 | ||
73 | cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian | |
74 | ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB | |
75 | ||
40660f1f | 76 | LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name) |
cfdbc2e1 VG |
77 | |
78 | # Modules with short calls might break for calls into builtin-kernel | |
07fd7d4b | 79 | KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode |
cfdbc2e1 VG |
80 | |
81 | # Finally dump eveything into kernel build system | |
82 | KBUILD_CFLAGS += $(cflags-y) | |
83 | KBUILD_AFLAGS += $(KBUILD_CFLAGS) | |
d503ac53 | 84 | KBUILD_LDFLAGS += $(ldflags-y) |
cfdbc2e1 | 85 | |
cfdbc2e1 VG |
86 | head-y := arch/arc/kernel/head.o |
87 | ||
88 | # See arch/arc/Kbuild for content of core part of the kernel | |
89 | core-y += arch/arc/ | |
90 | ||
999159a5 VG |
91 | # w/o this dtb won't embed into kernel binary |
92 | core-y += arch/arc/boot/dts/ | |
93 | ||
33460f86 | 94 | core-y += arch/arc/plat-sim/ |
fd155792 | 95 | core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/ |
556cc1c5 | 96 | core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/ |
a518d637 | 97 | core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/ |
96665789 | 98 | |
769bc1fd VG |
99 | drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/ |
100 | ||
cfdbc2e1 VG |
101 | libs-y += arch/arc/lib/ $(LIBGCC) |
102 | ||
fb0990bb VG |
103 | boot := arch/arc/boot |
104 | ||
2547476a | 105 | #default target for make without any arguments. |
5e40f0fd | 106 | KBUILD_IMAGE := $(boot)/bootpImage |
cfdbc2e1 | 107 | |
5e40f0fd | 108 | all: bootpImage |
cfdbc2e1 VG |
109 | bootpImage: vmlinux |
110 | ||
104058ed VG |
111 | boot_targets += uImage uImage.bin uImage.gz |
112 | ||
113 | $(boot_targets): vmlinux | |
cfdbc2e1 VG |
114 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
115 | ||
116 | archclean: | |
117 | $(Q)$(MAKE) $(clean)=$(boot) |