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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 | ||
59b9230c | 9 | KBUILD_DEFCONFIG := nsim_hs_defconfig |
cfdbc2e1 | 10 | |
dba837fe | 11 | cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__ |
40b8ad8f VG |
12 | cflags-$(CONFIG_ISA_ARCOMPACT) += -mA7 |
13 | cflags-$(CONFIG_ISA_ARCV2) += -mcpu=archs | |
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 | ||
5a45da02 VG |
24 | upto_gcc44 := $(call cc-ifversion, -le, 0404, y) |
25 | atleast_gcc44 := $(call cc-ifversion, -ge, 0404, y) | |
5a45da02 | 26 | |
cfdbc2e1 VG |
27 | cflags-$(atleast_gcc44) += -fsection-anchors |
28 | ||
76a08404 VG |
29 | cflags-$(CONFIG_ARC_HAS_LLSC) += -mlock |
30 | cflags-$(CONFIG_ARC_HAS_SWAPE) += -mswape | |
31 | ||
d05a76ab AB |
32 | ifdef CONFIG_ISA_ARCV2 |
33 | ||
1f6ccfff | 34 | ifndef CONFIG_ARC_HAS_LL64 |
d05a76ab AB |
35 | cflags-y += -mno-ll64 |
36 | endif | |
37 | ||
38 | ifndef CONFIG_ARC_HAS_DIV_REM | |
39 | cflags-y += -mno-div-rem | |
40 | endif | |
41 | ||
1f6ccfff VG |
42 | endif |
43 | ||
5a205a32 VG |
44 | cfi := $(call as-instr,.cfi_startproc\n.cfi_endproc,-DARC_DW2_UNWIND_AS_CFI) |
45 | cflags-$(CONFIG_ARC_DW2_UNWIND) += -fasynchronous-unwind-tables $(cfi) | |
6716dbbd | 46 | |
cfdbc2e1 VG |
47 | ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE |
48 | # Generic build system uses -O2, we want -O3 | |
97709069 | 49 | # Note: No need to add to cflags-y as that happens anyways |
a76bcf55 AB |
50 | # |
51 | # Disable the false maybe-uninitialized warings gcc spits out at -O3 | |
52 | ARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,) | |
cfdbc2e1 VG |
53 | endif |
54 | ||
55 | # small data is default for elf32 tool-chain. If not usable, disable it | |
56 | # This also allows repurposing GP as scratch reg to gcc reg allocator | |
57 | disable_small_data := y | |
58 | cflags-$(disable_small_data) += -mno-sdata -fcall-used-gp | |
59 | ||
60 | cflags-$(CONFIG_CPU_BIG_ENDIAN) += -mbig-endian | |
61 | ldflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB | |
62 | ||
5a45da02 | 63 | # STAR 9000518362: (fixed with binutils shipping with gcc 4.8) |
cfdbc2e1 | 64 | # arc-linux-uclibc-ld (buildroot) or arceb-elf32-ld (EZChip) don't accept |
5a45da02 VG |
65 | # --build-id w/o "-marclinux". Default arc-elf32-ld is OK |
66 | ldflags-$(upto_gcc44) += -marclinux | |
cfdbc2e1 | 67 | |
e6d44f55 | 68 | LIBGCC = $(shell $(CC) $(cflags-y) --print-libgcc-file-name) |
cfdbc2e1 VG |
69 | |
70 | # Modules with short calls might break for calls into builtin-kernel | |
07fd7d4b | 71 | KBUILD_CFLAGS_MODULE += -mlong-calls -mno-millicode |
cfdbc2e1 VG |
72 | |
73 | # Finally dump eveything into kernel build system | |
74 | KBUILD_CFLAGS += $(cflags-y) | |
75 | KBUILD_AFLAGS += $(KBUILD_CFLAGS) | |
76 | LDFLAGS += $(ldflags-y) | |
77 | ||
cfdbc2e1 VG |
78 | head-y := arch/arc/kernel/head.o |
79 | ||
80 | # See arch/arc/Kbuild for content of core part of the kernel | |
81 | core-y += arch/arc/ | |
82 | ||
999159a5 VG |
83 | # w/o this dtb won't embed into kernel binary |
84 | core-y += arch/arc/boot/dts/ | |
85 | ||
33460f86 | 86 | core-y += arch/arc/plat-sim/ |
fd155792 | 87 | core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/ |
556cc1c5 | 88 | core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/ |
96665789 | 89 | core-$(CONFIG_ARC_PLAT_EZNPS) += arch/arc/plat-eznps/ |
a518d637 | 90 | core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/ |
96665789 NC |
91 | |
92 | ifdef CONFIG_ARC_PLAT_EZNPS | |
93 | KBUILD_CPPFLAGS += -I$(srctree)/arch/arc/plat-eznps/include | |
94 | endif | |
cfdbc2e1 | 95 | |
769bc1fd VG |
96 | drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/ |
97 | ||
cfdbc2e1 VG |
98 | libs-y += arch/arc/lib/ $(LIBGCC) |
99 | ||
fb0990bb VG |
100 | boot := arch/arc/boot |
101 | ||
2547476a | 102 | #default target for make without any arguments. |
5e40f0fd | 103 | KBUILD_IMAGE := $(boot)/bootpImage |
cfdbc2e1 | 104 | |
5e40f0fd | 105 | all: bootpImage |
cfdbc2e1 VG |
106 | bootpImage: vmlinux |
107 | ||
104058ed VG |
108 | boot_targets += uImage uImage.bin uImage.gz |
109 | ||
110 | $(boot_targets): vmlinux | |
cfdbc2e1 VG |
111 | $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ |
112 | ||
999159a5 VG |
113 | %.dtb %.dtb.S %.dtb.o: scripts |
114 | $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ | |
115 | ||
116 | dtbs: scripts | |
10375ccc | 117 | $(Q)$(MAKE) $(build)=$(boot)/dts |
999159a5 | 118 | |
cfdbc2e1 VG |
119 | archclean: |
120 | $(Q)$(MAKE) $(clean)=$(boot) |