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cfdbc2e1 VG |
1 | # |
2 | # Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | |
3 | # | |
4 | # This program is free software; you can redistribute it and/or modify | |
5 | # it under the terms of the GNU General Public License version 2 as | |
6 | # published by the Free Software Foundation. | |
7 | # | |
8 | ||
b7cc40c3 | 9 | KBUILD_DEFCONFIG := nsim_hs_defconfig |
cfdbc2e1 | 10 | |
74c11e30 | 11 | cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ |
40b8ad8f | 12 | cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7 |
00a99339 | 13 | cflags-$(CONFIG_ISA_ARCV2) += -mcpu=hs38 |
cfdbc2e1 | 14 | |
080c3747 VG |
15 | ifdef CONFIG_ARC_CURR_IN_REG |
16 | # For a global register defintion, make sure it gets passed to every file | |
17 | # We had a customer reported bug where some code built in kernel was NOT using | |
18 | # any kernel headers, and missing the r25 global register | |
8235703e | 19 | # Can't do unconditionally because of recursive include issues |
080c3747 VG |
20 | # due to <linux/thread_info.h> |
21 | LINUXINCLUDE += -include ${src}/arch/arc/include/asm/current.h | |
22 | endif | |
23 | ||
2b52e2a6 | 24 | cflags-y += -fsection-anchors |
cfdbc2e1 | 25 | |
76a08404 VG |
26 | cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock |
27 | cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape | |
28 | ||
d05a76ab AB |
29 | ifdef CONFIG_ISA_ARCV2 |
30 | ||
76551468 EP |
31 | ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS |
32 | cflags-y += -munaligned-access | |
33 | else | |
34 | cflags-y += -mno-unaligned-access | |
35 | endif | |
36 | ||
1f6ccfff | 37 | ifndef CONFIG_ARC_HAS_LL64 |
d05a76ab AB |
38 | cflags-y += -mno-ll64 |
39 | endif | |
40 | ||
41 | ifndef CONFIG_ARC_HAS_DIV_REM | |
42 | cflags-y += -mno-div-rem | |
43 | endif | |
44 | ||
1f6ccfff VG |
45 | endif |
46 | ||
5a205a32 VG |
47 | cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI) |
48 | cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi) | |
6716dbbd | 49 | |
cfdbc2e1 VG |
50 | ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE |
51 | # Generic build system uses -O2, we want -O3 | |
97709069 | 52 | # Note: No need to add to cflags-y as that happens anyways |
a76bcf55 AB |
53 | # |
54 | # Disable the false maybe-uninitialized warings gcc spits out at -O3 | |
55 | ARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,) | |
cfdbc2e1 VG |
56 | endif |
57 | ||
58 | # small data is default for elf32 tool-chain. If not usable, disable it | |
59 | # This also allows repurposing GP as scratch reg to gcc reg allocator | |
60 | disable_small_data := y | |
61 | cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp | |
62 | ||
63 | cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian | |
64 | ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB | |
65 | ||
40660f1f | 66 | LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name) |
cfdbc2e1 VG |
67 | |
68 | # Modules with short calls might break for calls into builtin-kernel | |
07fd7d4b | 69 | KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode |
cfdbc2e1 VG |
70 | |
71 | # Finally dump eveything into kernel build system | |
72 | KBUILD_CFLAGS += $(cflags-y) | |
73 | KBUILD_AFLAGS += $(KBUILD_CFLAGS) | |
d503ac53 | 74 | KBUILD_LDFLAGS += $(ldflags-y) |
cfdbc2e1 | 75 | |
cfdbc2e1 VG |
76 | head-y := arch/arc/kernel/head.o |
77 | ||
78 | # See arch/arc/Kbuild for content of core part of the kernel | |
79 | core-y += arch/arc/ | |
80 | ||
999159a5 VG |
81 | # w/o this dtb won't embed into kernel binary |
82 | core-y += arch/arc/boot/dts/ | |
83 | ||
33460f86 | 84 | core-y += arch/arc/plat-sim/ |
fd155792 | 85 | core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/ |
556cc1c5 | 86 | core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/ |
96665789 | 87 | core-$(CONFIG_ARC_PLAT_EZNPS) += arch/arc/plat-eznps/ |
a518d637 | 88 | core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/ |
96665789 NC |
89 | |
90 | ifdef CONFIG_ARC_PLAT_EZNPS | |
91 | KBUILD_CPPFLAGS += -I$(srctree)/arch/arc/plat-eznps/include | |
92 | endif | |
cfdbc2e1 | 93 | |
769bc1fd VG |
94 | drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/ |
95 | ||
cfdbc2e1 VG |
96 | libs-y += arch/arc/lib/ $(LIBGCC) |
97 | ||
fb0990bb VG |
98 | boot := arch/arc/boot |
99 | ||
2547476a | 100 | #default target for make without any arguments. |
5e40f0fd | 101 | KBUILD_IMAGE := $(boot)/bootpImage |
cfdbc2e1 | 102 | |
5e40f0fd | 103 | all: bootpImage |
cfdbc2e1 VG |
104 | bootpImage: vmlinux |
105 | ||
104058ed VG |
106 | boot_targets += uImage uImage.bin uImage.gz |
107 | ||
108 | $(boot_targets): vmlinux | |
cfdbc2e1 VG |
109 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
110 | ||
111 | archclean: | |
112 | $(Q)$(MAKE) $(clean)=$(boot) |