blob: db857d07114f18240ac7d2deec2710f7b838cf1a [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# arch/arm/Makefile
3#
Paul Smith4f193362006-03-05 17:14:10 -05004# This file is included by the global makefile so that you can add your own
5# architecture-specific flags and dependencies.
6#
Linus Torvalds1da177e2005-04-16 15:20:36 -07007# This file is subject to the terms and conditions of the GNU General Public
8# License. See the file "COPYING" in the main directory of this archive
9# for more details.
10#
11# Copyright (C) 1995-2001 by Russell King
12
Nathan Chancellor091bb542019-01-05 19:35:25 +010013LDFLAGS_vmlinux := --no-undefined -X --pic-veneer
Catalin Marinas26584852009-05-30 14:00:18 +010014ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
15LDFLAGS_vmlinux += --be8
Cao jin336303a2017-10-09 15:11:45 +080016KBUILD_LDFLAGS_MODULE += --be8
Catalin Marinas26584852009-05-30 14:00:18 +010017endif
Sam Ravnborg51b563f2009-09-20 12:28:22 +020018
Ard Biesheuvel7d485f62014-11-24 16:54:35 +010019ifeq ($(CONFIG_ARM_MODULE_PLTS),y)
Masahiro Yamada10df0632019-08-15 01:06:22 +090020KBUILD_LDS_MODULE += $(srctree)/arch/arm/kernel/module.lds
Ard Biesheuvel7d485f62014-11-24 16:54:35 +010021endif
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023GZFLAGS :=-9
Sam Ravnborga0f97e02007-10-14 22:21:35 +020024#KBUILD_CFLAGS +=-pipe
Linus Torvalds1da177e2005-04-16 15:20:36 -070025
Michal Marekbd365592010-08-14 23:56:21 +010026# Never generate .eh_frame
27KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
28
Arnd Bergmann32872c02015-12-18 23:44:23 +010029# This should work on most of the modern platforms
30KBUILD_DEFCONFIG := multi_v7_defconfig
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
Uwe Kleine-Koenig3dbda772009-07-23 08:31:31 +020032# defines filename extension depending memory management type.
Hyok S. Choif8c07de2006-03-27 15:14:19 +010033ifeq ($(CONFIG_MMU),)
34MMUEXT := -nommu
Will Deacone91b36e2012-12-04 12:56:44 +010035KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access)
Hyok S. Choif8c07de2006-03-27 15:14:19 +010036endif
37
Linus Torvalds1da177e2005-04-16 15:20:36 -070038ifeq ($(CONFIG_FRAME_POINTER),y)
Nathan Huckleberry6dc5fd92019-08-22 21:26:53 +010039KBUILD_CFLAGS +=-fno-omit-frame-pointer
40ifeq ($(CONFIG_CC_IS_GCC),y)
41KBUILD_CFLAGS += -mapcs -mno-sched-prolog
42endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070043endif
44
45ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
Sam Ravnborg06c50402007-10-15 22:17:25 +020046KBUILD_CPPFLAGS += -mbig-endian
Luc Van Oostenryckff0c6ee2017-10-31 18:19:15 +010047CHECKFLAGS += -D__ARMEB__
Linus Torvalds1da177e2005-04-16 15:20:36 -070048AS += -EB
Masahiro Yamadad503ac52018-08-24 08:20:39 +090049KBUILD_LDFLAGS += -EB
Linus Torvalds1da177e2005-04-16 15:20:36 -070050else
Sam Ravnborg06c50402007-10-15 22:17:25 +020051KBUILD_CPPFLAGS += -mlittle-endian
Luc Van Oostenryckff0c6ee2017-10-31 18:19:15 +010052CHECKFLAGS += -D__ARMEL__
Linus Torvalds1da177e2005-04-16 15:20:36 -070053AS += -EL
Masahiro Yamadad503ac52018-08-24 08:20:39 +090054KBUILD_LDFLAGS += -EL
Linus Torvalds1da177e2005-04-16 15:20:36 -070055endif
56
Ard Biesheuvela0772242015-09-03 13:24:40 +010057#
58# The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and
59# later may result in code being generated that handles signed short and signed
60# char struct members incorrectly. So disable it.
61# (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932)
62#
63KBUILD_CFLAGS += $(call cc-option,-fno-ipa-sra)
64
Linus Torvalds1da177e2005-04-16 15:20:36 -070065# This selects which instruction set is used.
66# Note that GCC does not numerically define an architecture version
67# macro, but instead defines a whole series of macros which makes
68# testing for a specific architecture or later rather impossible.
Russell King3c0c01a2013-06-29 11:44:43 +010069arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
Douglas Anderson1b213762013-06-27 04:32:06 +010070arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
71arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
Catalin Marinas23688e992007-05-08 22:45:26 +010072# Only override the compiler option if ARMv6. The ARMv6K extensions are
73# always available in ARMv7
74ifeq ($(CONFIG_CPU_32v6),y)
Douglas Anderson1b213762013-06-27 04:32:06 +010075arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
Catalin Marinas23688e992007-05-08 22:45:26 +010076endif
Douglas Anderson1b213762013-06-27 04:32:06 +010077arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
78arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t
79arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4
Jason A. Donenfeld8403bcb2018-10-02 15:01:24 +010080arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3m
Douglas Anderson1b213762013-06-27 04:32:06 +010081
82# Evaluate arch cc-option calls now
83arch-y := $(arch-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
85# This selects how we optimise for the processor.
Douglas Anderson1b213762013-06-27 04:32:06 +010086tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi
87tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi
88tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi
89tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi
90tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi
91tune-$(CONFIG_CPU_ARM946E) =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
92tune-$(CONFIG_CPU_ARM920T) =-mtune=arm9tdmi
93tune-$(CONFIG_CPU_ARM922T) =-mtune=arm9tdmi
94tune-$(CONFIG_CPU_ARM925T) =-mtune=arm9tdmi
95tune-$(CONFIG_CPU_ARM926T) =-mtune=arm9tdmi
96tune-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi
97tune-$(CONFIG_CPU_SA110) =-mtune=strongarm110
98tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100
99tune-$(CONFIG_CPU_XSCALE) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
100tune-$(CONFIG_CPU_XSC3) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
101tune-$(CONFIG_CPU_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale)
102tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
103tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
104
105# Evaluate tune cc-option calls now
106tune-y := $(tune-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000108ifeq ($(CONFIG_AEABI),y)
Stefan Agner22905a22018-05-08 22:49:49 +0100109CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfp
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000110else
Catalin Marinasc28a8142005-06-30 17:04:14 +0100111CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000112endif
113
Catalin Marinasadf8b372009-02-12 13:56:34 +0100114ifeq ($(CONFIG_ARM_UNWIND),y)
115CFLAGS_ABI +=-funwind-tables
116endif
117
Nathan Chancellorb0fe66c2019-09-04 01:13:15 +0100118ifeq ($(CONFIG_CC_IS_CLANG),y)
119CFLAGS_ABI += -meabi gnu
120endif
121
Nicolas Pitre75fea302017-11-29 07:52:52 +0100122# Accept old syntax despite ".syntax unified"
123AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
124
Catalin Marinas16c79652009-07-24 12:33:02 +0100125ifeq ($(CONFIG_THUMB2_KERNEL),y)
Russell Kingb752bb42019-05-15 23:17:17 +0100126CFLAGS_ISA :=-mthumb -Wa,-mimplicit-it=always $(AFLAGS_NOWARN)
Arnd Bergmann91802a82012-08-10 11:12:20 +0000127AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
Dave Martin6f685c52011-03-03 11:41:12 +0100128# Work around buggy relocation from gas if requested:
129ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
Cao jin336303a2017-10-09 15:11:45 +0800130KBUILD_CFLAGS_MODULE +=-fno-optimize-sibling-calls
Dave Martin6f685c52011-03-03 11:41:12 +0100131endif
Arnd Bergmann91802a82012-08-10 11:12:20 +0000132else
Nicolas Pitre75fea302017-11-29 07:52:52 +0100133CFLAGS_ISA :=$(call cc-option,-marm,) $(AFLAGS_NOWARN)
Arnd Bergmann91802a82012-08-10 11:12:20 +0000134AFLAGS_ISA :=$(CFLAGS_ISA)
Catalin Marinas16c79652009-07-24 12:33:02 +0100135endif
136
Nicolas Pitre704bdda2006-01-14 16:33:50 +0000137# Need -Uarm for gcc < 3.x
Arnd Bergmann91802a82012-08-10 11:12:20 +0000138KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
139KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140
Luc Van Oostenryck1f2f01b2018-05-30 22:48:38 +0200141CHECKFLAGS += -D__arm__
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142
143#Default value
Thomas Gleixner5290dc22012-05-03 09:02:50 +0000144head-y := arch/arm/kernel/head$(MMUEXT).o
Daniel Thompson10508b22014-07-08 13:50:50 +0100145
146# Text offset. This list is sorted numerically by address in order to
147# provide a means to avoid/resolve conflicts in multi-arch kernels.
Russell King9d4f13e2006-01-03 17:28:33 +0000148textofs-y := 0x00008000
Vasily Khoruzhickc4761b62010-05-11 09:55:09 +0300149# We don't want the htc bootloader to corrupt kernel during resume
150textofs-$(CONFIG_PM_H1940) := 0x00108000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
Russell Kingb4175b82009-04-26 14:22:29 +0100152ifeq ($(CONFIG_ARCH_SA1100),y)
153textofs-$(CONFIG_SA1111) := 0x00208000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700154endif
Stephen Boyd9e775ad2011-08-12 00:14:28 +0100155textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
156textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
Martin Blumenstingld850f3e2017-09-17 18:45:21 +0200157textofs-$(CONFIG_ARCH_MESON) := 0x00208000
Anders Berg1d22924e2014-05-23 11:08:35 +0200158textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
Russell Kingb4175b82009-04-26 14:22:29 +0100159
160# Machine directory name. This list is sorted alphanumerically
161# by CONFIG_* macro name.
Andreas Färber6bb85362017-02-15 11:03:22 +0100162machine-$(CONFIG_ARCH_ACTIONS) += actions
Tsahee Zidenberg445d9b32015-03-12 13:53:00 +0200163machine-$(CONFIG_ARCH_ALPINE) += alpine
Lars Persson590b4602016-02-11 17:06:19 +0100164machine-$(CONFIG_ARCH_ARTPEC) += artpec
Joel Stanley87dfe492019-08-21 15:25:27 +0930165machine-$(CONFIG_ARCH_ASPEED) += aspeed
Rob Herring387798b2012-09-06 13:41:12 -0500166machine-$(CONFIG_ARCH_AT91) += at91
Anders Berg1d22924e2014-05-23 11:08:35 +0200167machine-$(CONFIG_ARCH_AXXIA) += axxia
Christian Daudt8ac49e02012-11-19 09:46:10 -0800168machine-$(CONFIG_ARCH_BCM) += bcm
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200169machine-$(CONFIG_ARCH_BERLIN) += berlin
Rob Herring387798b2012-09-06 13:41:12 -0500170machine-$(CONFIG_ARCH_CLPS711X) += clps711x
171machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
172machine-$(CONFIG_ARCH_DAVINCI) += davinci
Baruch Siach16083d42015-03-09 11:05:14 +0200173machine-$(CONFIG_ARCH_DIGICOLOR) += digicolor
Rob Herring387798b2012-09-06 13:41:12 -0500174machine-$(CONFIG_ARCH_DOVE) += dove
175machine-$(CONFIG_ARCH_EBSA110) += ebsa110
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100176machine-$(CONFIG_ARCH_EFM32) += efm32
Rob Herring387798b2012-09-06 13:41:12 -0500177machine-$(CONFIG_ARCH_EP93XX) += ep93xx
Russell King6eddaca2013-07-27 00:45:45 +0100178machine-$(CONFIG_ARCH_EXYNOS) += exynos
Uwe Kleine-Königc3c963e2014-09-24 09:01:19 +0100179machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge
Rob Herring387798b2012-09-06 13:41:12 -0500180machine-$(CONFIG_ARCH_GEMINI) += gemini
Rob Herring387798b2012-09-06 13:41:12 -0500181machine-$(CONFIG_ARCH_HIGHBANK) += highbank
Haojian Zhuang7685b122014-04-01 11:01:09 +0800182machine-$(CONFIG_ARCH_HISI) += hisi
Rob Herring387798b2012-09-06 13:41:12 -0500183machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
Rob Herring387798b2012-09-06 13:41:12 -0500184machine-$(CONFIG_ARCH_IOP32X) += iop32x
Rob Herring387798b2012-09-06 13:41:12 -0500185machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
Russell King6eddaca2013-07-27 00:45:45 +0100186machine-$(CONFIG_ARCH_KEYSTONE) += keystone
Joachim Eastwoode8d235d2015-05-12 00:00:47 +0200187machine-$(CONFIG_ARCH_LPC18XX) += lpc18xx
Rob Herring387798b2012-09-06 13:41:12 -0500188machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx
Carlo Caione3b8f5032014-09-10 22:16:59 +0200189machine-$(CONFIG_ARCH_MESON) += meson
Rob Herring387798b2012-09-06 13:41:12 -0500190machine-$(CONFIG_ARCH_MMP) += mmp
Vladimir Murzin18471192016-04-25 09:49:13 +0100191machine-$(CONFIG_ARCH_MPS2) += vexpress
Jonas Jensen17723fd32013-12-18 13:58:45 +0100192machine-$(CONFIG_ARCH_MOXART) += moxart
Rob Herring387798b2012-09-06 13:41:12 -0500193machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
Russell King6eddaca2013-07-27 00:45:45 +0100194machine-$(CONFIG_ARCH_MVEBU) += mvebu
Rob Herring387798b2012-09-06 13:41:12 -0500195machine-$(CONFIG_ARCH_MXC) += imx
Matthias Bruggerf682a212014-05-13 01:06:13 +0200196machine-$(CONFIG_ARCH_MEDIATEK) += mediatek
Sugaya Taichi9fb29c72019-02-27 13:52:33 +0900197machine-$(CONFIG_ARCH_MILBEAUT) += milbeaut
Rob Herring387798b2012-09-06 13:41:12 -0500198machine-$(CONFIG_ARCH_MXS) += mxs
Rob Herring387798b2012-09-06 13:41:12 -0500199machine-$(CONFIG_ARCH_NOMADIK) += nomadik
Brendan Higgins7bffa142017-08-16 12:18:39 -0700200machine-$(CONFIG_ARCH_NPCM) += npcm
Daniel Tang9851ca52013-06-11 18:40:17 +1000201machine-$(CONFIG_ARCH_NSPIRE) += nspire
Neil Armstronge330ea52016-09-09 12:23:45 +0200202machine-$(CONFIG_ARCH_OXNAS) += oxnas
Rob Herring387798b2012-09-06 13:41:12 -0500203machine-$(CONFIG_ARCH_OMAP1) += omap1
204machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
205machine-$(CONFIG_ARCH_ORION5X) += orion5x
206machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell
Rob Herring387798b2012-09-06 13:41:12 -0500207machine-$(CONFIG_ARCH_PXA) += pxa
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600208machine-$(CONFIG_ARCH_QCOM) += qcom
Andreas Färber78e3dbc12018-12-18 20:32:30 +0530209machine-$(CONFIG_ARCH_RDA) += rda
Rob Herring387798b2012-09-06 13:41:12 -0500210machine-$(CONFIG_ARCH_REALVIEW) += realview
Heiko Stuebnerd63dc0512013-06-02 23:09:41 +0200211machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip
Rob Herring387798b2012-09-06 13:41:12 -0500212machine-$(CONFIG_ARCH_RPC) += rpc
Kukjin Kimacf2d412013-01-21 15:39:09 -0800213machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx
Rob Herring387798b2012-09-06 13:41:12 -0500214machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx
Rob Herring387798b2012-09-06 13:41:12 -0500215machine-$(CONFIG_ARCH_S5PV210) += s5pv210
Rob Herring387798b2012-09-06 13:41:12 -0500216machine-$(CONFIG_ARCH_SA1100) += sa1100
Geert Uytterhoevend9be9ce2018-04-20 15:28:27 +0200217machine-$(CONFIG_ARCH_RENESAS) += shmobile
Russell King6eddaca2013-07-27 00:45:45 +0100218machine-$(CONFIG_ARCH_SIRF) += prima2
219machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
220machine-$(CONFIG_ARCH_STI) += sti
Maxime Coquelin9b799b72015-05-09 09:53:54 +0200221machine-$(CONFIG_ARCH_STM32) += stm32
Russell King6eddaca2013-07-27 00:45:45 +0100222machine-$(CONFIG_ARCH_SUNXI) += sunxi
Marc Gonzalezd6de5b02015-12-15 10:41:13 +0100223machine-$(CONFIG_ARCH_TANGO) += tango
Rob Herring387798b2012-09-06 13:41:12 -0500224machine-$(CONFIG_ARCH_TEGRA) += tegra
225machine-$(CONFIG_ARCH_U300) += u300
226machine-$(CONFIG_ARCH_U8500) += ux500
227machine-$(CONFIG_ARCH_VERSATILE) += versatile
228machine-$(CONFIG_ARCH_VEXPRESS) += vexpress
229machine-$(CONFIG_ARCH_VT8500) += vt8500
Jun Nieacede512015-04-28 17:18:05 +0800230machine-$(CONFIG_ARCH_ZX) += zx
Rob Herring387798b2012-09-06 13:41:12 -0500231machine-$(CONFIG_ARCH_ZYNQ) += zynq
Russell King6eddaca2013-07-27 00:45:45 +0100232machine-$(CONFIG_PLAT_SPEAR) += spear
Russell Kingb4175b82009-04-26 14:22:29 +0100233
234# Platform directory name. This list is sorted alphanumerically
235# by CONFIG_* macro name.
Tomasz Figae245f962013-06-19 01:26:42 +0900236plat-$(CONFIG_ARCH_EXYNOS) += samsung
Rob Herring387798b2012-09-06 13:41:12 -0500237plat-$(CONFIG_ARCH_OMAP) += omap
238plat-$(CONFIG_ARCH_S3C64XX) += samsung
Tomasz Figaaa425872014-07-03 13:17:12 +0200239plat-$(CONFIG_ARCH_S5PV210) += samsung
Rob Herring387798b2012-09-06 13:41:12 -0500240plat-$(CONFIG_PLAT_ORION) += orion
241plat-$(CONFIG_PLAT_PXA) += pxa
Kukjin Kim09ec1d72013-01-31 16:54:38 -0800242plat-$(CONFIG_PLAT_S3C24XX) += samsung
Rob Herring387798b2012-09-06 13:41:12 -0500243plat-$(CONFIG_PLAT_VERSATILE) += versatile
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
245ifeq ($(CONFIG_ARCH_EBSA110),y)
246# This is what happens if you forget the IOCS16 line.
247# PCMCIA cards stop working.
248CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
249export CFLAGS_3c589_cs.o
250endif
251
Russell King9d4f13e2006-01-03 17:28:33 +0000252# The byte offset of the kernel image in RAM from the start of RAM.
253TEXT_OFFSET := $(textofs-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254
Russell Kingf44f82e2008-08-02 19:36:14 +0100255# The first directory contains additional information for the boot setup code
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256ifneq ($(machine-y),)
Russell Kingf44f82e2008-08-02 19:36:14 +0100257MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700258else
259MACHINE :=
260endif
Rob Herring387798b2012-09-06 13:41:12 -0500261ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
262MACHINE :=
263endif
Ben Dooksa21765a2007-02-11 18:31:01 +0100264
Russell Kingf44f82e2008-08-02 19:36:14 +0100265machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
Tomasz Figaaa425872014-07-03 13:17:12 +0200266platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y)))
Russell Kingf44f82e2008-08-02 19:36:14 +0100267
Rob Herring387798b2012-09-06 13:41:12 -0500268ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
Arnd Bergmannde8a06f2016-06-09 09:50:28 +0200269ifneq ($(CONFIG_ARM_SINGLE_ARMV7M),y)
Russell Kingf44f82e2008-08-02 19:36:14 +0100270KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
271endif
Rob Herring387798b2012-09-06 13:41:12 -0500272endif
Russell Kingf44f82e2008-08-02 19:36:14 +0100273
Hyok S. Choif8c07de2006-03-27 15:14:19 +0100274export TEXT_OFFSET GZFLAGS MMUEXT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
Masahiro Yamada3c868892019-07-11 04:07:56 +0100277# Put arch/arm/fastfpe/ to use this.
278core-$(CONFIG_FPE_FASTFPE) += $(patsubst $(srctree)/%,%,$(wildcard $(srctree)/arch/arm/fastfpe/))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279core-$(CONFIG_VFP) += arch/arm/vfp/
Stefano Stabellini4c071ee2012-09-14 13:53:39 +0000280core-$(CONFIG_XEN) += arch/arm/xen/
Christoffer Dall749cf76c2013-01-20 18:28:06 -0500281core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/
Nathan Lynche5b61de2015-03-25 19:16:05 +0100282core-$(CONFIG_VDSO) += arch/arm/vdso/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283
Nicolas Pitrec62d0f22010-09-01 09:37:05 -0400284# If we have a machine-specific directory, then include it in the build.
285core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
Wang Nanfca08f32015-01-09 10:19:49 +0800286core-y += arch/arm/probes/
Mircea Gherzanddecdfc2012-03-16 13:37:12 +0100287core-y += arch/arm/net/
David McCulloughf0be44f2012-09-07 04:17:02 +0800288core-y += arch/arm/crypto/
Nicolas Pitrec62d0f22010-09-01 09:37:05 -0400289core-y += $(machdirs) $(platdirs)
290
Masahiro Yamada2a58e142019-07-18 17:35:23 +0100291# For cleaning
292core- += $(patsubst %,arch/arm/mach-%/, $(machine-))
293core- += $(patsubst %,arch/arm/plat-%/, $(plat-))
294
Linus Torvalds1da177e2005-04-16 15:20:36 -0700295drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296
Nicolas Pitre30c2f90b2005-11-04 17:17:30 +0000297libs-y := arch/arm/lib/ $(libs-y)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
299# Default target when executing plain make
Michal Marek152e6742016-11-22 22:34:30 +0100300boot := arch/arm/boot
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301ifeq ($(CONFIG_XIP_KERNEL),y)
Michal Marek152e6742016-11-22 22:34:30 +0100302KBUILD_IMAGE := $(boot)/xipImage
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303else
Michal Marek152e6742016-11-22 22:34:30 +0100304KBUILD_IMAGE := $(boot)/zImage
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305endif
306
Ard Biesheuvel189af462018-12-06 09:32:57 +0100307ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y)
308prepare: stack_protector_prepare
309stack_protector_prepare: prepare0
310 $(eval KBUILD_CFLAGS += \
311 -fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell \
312 awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\
313 include/generated/asm-offsets.h) \
314 -fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \
315 awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\
316 include/generated/asm-offsets.h))
317endif
318
Rob Herring37c8a5f2018-01-10 15:19:37 -0600319all: $(notdir $(KBUILD_IMAGE))
Russell King51342d72006-10-29 12:51:05 +0000320
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321
Russell King96a8fae2016-10-18 19:57:01 +0100322archheaders:
323 $(Q)$(MAKE) $(build)=arch/arm/tools uapi
324
Sam Ravnborg66206532009-04-20 19:59:58 +0200325archprepare:
Russell King4e2648db2016-10-18 20:11:23 +0100326 $(Q)$(MAKE) $(build)=arch/arm/tools kapi
Linus Torvalds1da177e2005-04-16 15:20:36 -0700327
328# Convert bzImage to zImage
329bzImage: zImage
330
Robert Richter19514fc2013-07-17 18:05:06 +0200331BOOT_TARGETS = zImage Image xipImage bootpImage uImage
332INSTALL_TARGETS = zinstall uinstall install
333
334PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
335
Masahiro Yamada3939f332015-08-17 04:03:33 +0100336bootpImage uImage: zImage
337zImage: Image
338
Robert Richter19514fc2013-07-17 18:05:06 +0200339$(BOOT_TARGETS): vmlinux
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
Masahiro Yamadac6bbfbb72016-05-30 03:01:23 +0100341 @$(kecho) ' Kernel: $(boot)/$@ is ready'
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
Robert Richter19514fc2013-07-17 18:05:06 +0200343$(INSTALL_TARGETS):
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
345
Nathan Lynche5b61de2015-03-25 19:16:05 +0100346PHONY += vdso_install
347vdso_install:
348ifeq ($(CONFIG_VDSO),y)
349 $(Q)$(MAKE) $(build)=arch/arm/vdso $@
350endif
351
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352# We use MRPROPER_FILES and CLEAN_FILES now
353archclean:
354 $(Q)$(MAKE) $(clean)=$(boot)
355
356# My testing targets (bypasses dependencies)
357bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359
360define archhelp
361 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
362 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
363 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
Uwe Kleine-Königa4f14ba2008-03-06 16:22:17 +0100364 echo ' uImage - U-Boot wrapped zImage'
Daniel Tangc01c5a52013-05-03 08:13:55 +0100365 echo ' bootpImage - Combined zImage and initial RAM disk'
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366 echo ' (supply initrd image via make variable INITRD=<path>)'
367 echo ' install - Install uncompressed kernel'
368 echo ' zinstall - Install compressed kernel'
Russell Kinga65d2922011-01-08 16:18:51 +0000369 echo ' uinstall - Install U-Boot wrapped compressed kernel'
Sam Ravnborgcaa27b62009-07-20 21:37:11 +0200370 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
371 echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 echo ' install to $$(INSTALL_PATH) and run lilo'
Nathan Lynche5b61de2015-03-25 19:16:05 +0100373 echo ' vdso_install - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso'
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374endef