2005-09-26 06:04:21 +00:00
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies. Remember to do have actions
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# for "archclean" and "archdep" for cleaning up and making dependencies for
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# this architecture.
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1994 by Linus Torvalds
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# Changes for PPC by Gary Thomas
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# Rewritten by Cort Dougan and Paul Mackerras
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#
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HAS_BIARCH := $(call cc-option-yn, -m32)
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# Set default 32 bits cross compilers for vdso and boot wrapper
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CROSS32_COMPILE ?=
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ifeq ($(HAS_BIARCH),y)
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ifeq ($(CROSS32_COMPILE),)
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2018-05-30 12:19:19 +00:00
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ifdef CONFIG_PPC32
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# These options will be overridden by any -mcpu option that the CPU
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# or platform code sets later on the command line, but they are needed
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# to set a sane 32-bit cpu target for the 64-bit cross compiler which
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# may default to the wrong ISA.
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KBUILD_CFLAGS += -mcpu=powerpc
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KBUILD_AFLAGS += -mcpu=powerpc
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endif
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2005-09-26 06:04:21 +00:00
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endif
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endif
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2018-12-05 17:53:55 +00:00
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ifdef CONFIG_PPC_BOOK3S_32
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KBUILD_CFLAGS += -mcpu=powerpc
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endif
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2019-02-07 05:16:52 +00:00
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# If we're on a ppc/ppc64/ppc64le machine use that defconfig, otherwise just use
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# ppc64_defconfig because we have nothing better to go on.
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uname := $(shell uname -m)
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KBUILD_DEFCONFIG := $(if $(filter ppc%,$(uname)),$(uname),ppc64)_defconfig
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2005-11-18 05:39:08 +00:00
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2005-09-26 06:04:21 +00:00
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new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
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ifeq ($(new_nm),y)
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NM := $(NM) --synthetic
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endif
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2016-08-11 06:03:14 +00:00
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# BITS is used as extension for files which are available in a 32 bit
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# and a 64 bit version to simplify shared Makefiles.
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# e.g.: obj-y += foo_$(BITS).o
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export BITS
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ifdef CONFIG_PPC64
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BITS := 64
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else
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BITS := 32
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2005-09-26 06:04:21 +00:00
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endif
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2016-08-11 06:03:15 +00:00
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machine-y = ppc
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machine-$(CONFIG_PPC64) += 64
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machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le
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UTS_MACHINE := $(subst $(space),,$(machine-y))
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2005-10-13 06:14:15 +00:00
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2017-07-26 05:00:42 +00:00
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# XXX This needs to be before we override LD below
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ifdef CONFIG_PPC32
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KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
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else
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2019-08-14 16:06:22 +00:00
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KBUILD_LDS_MODULE += $(srctree)/arch/powerpc/kernel/module.lds
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2017-07-26 05:00:42 +00:00
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ifeq ($(call ld-ifversion, -ge, 225000000, y),y)
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# Have the linker provide sfpr if possible.
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# There is a corresponding test in arch/powerpc/lib/Makefile
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KBUILD_LDFLAGS_MODULE += --save-restore-funcs
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else
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KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
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endif
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endif
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2018-08-06 16:42:03 +00:00
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ifdef CONFIG_CPU_LITTLE_ENDIAN
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2018-05-30 12:19:21 +00:00
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KBUILD_CFLAGS += -mlittle-endian
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2018-08-23 23:20:39 +00:00
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KBUILD_LDFLAGS += -EL
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2013-09-23 02:05:11 +00:00
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LDEMULATION := lppc
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GNUTARGET := powerpcle
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MULTIPLEWORD := -mno-multiple
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2014-03-12 04:12:01 +00:00
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KBUILD_CFLAGS_MODULE += $(call cc-option,-mno-save-toc-indirect)
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2013-09-23 02:05:11 +00:00
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else
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2018-05-30 12:19:21 +00:00
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KBUILD_CFLAGS += $(call cc-option,-mbig-endian)
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2018-08-23 23:20:39 +00:00
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KBUILD_LDFLAGS += -EB
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2013-09-23 02:05:11 +00:00
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LDEMULATION := ppc
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GNUTARGET := powerpc
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MULTIPLEWORD := -mmultiple
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endif
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2016-11-27 02:46:20 +00:00
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ifdef CONFIG_PPC64
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cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
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cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
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aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
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aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
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endif
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2018-10-30 13:26:33 +00:00
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ifndef CONFIG_CC_IS_CLANG
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2016-08-09 12:43:46 +00:00
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cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align
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endif
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2018-05-30 12:19:21 +00:00
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cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian)
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cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian
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2016-08-09 12:43:46 +00:00
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aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mbig-endian)
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aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mlittle-endian
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2005-09-26 06:04:21 +00:00
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ifeq ($(HAS_BIARCH),y)
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2018-05-30 12:19:21 +00:00
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KBUILD_CFLAGS += -m$(BITS)
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KBUILD_AFLAGS += -m$(BITS) -Wl,-a$(BITS)
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2018-08-23 23:20:39 +00:00
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KBUILD_LDFLAGS += -m elf$(BITS)$(LDEMULATION)
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2005-09-26 06:04:21 +00:00
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endif
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2018-09-27 07:05:53 +00:00
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cflags-$(CONFIG_STACKPROTECTOR) += -mstack-protector-guard=tls
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2018-09-27 07:05:55 +00:00
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ifdef CONFIG_PPC64
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cflags-$(CONFIG_STACKPROTECTOR) += -mstack-protector-guard-reg=r13
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else
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2018-09-27 07:05:53 +00:00
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cflags-$(CONFIG_STACKPROTECTOR) += -mstack-protector-guard-reg=r2
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2018-09-27 07:05:55 +00:00
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endif
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2018-09-27 07:05:53 +00:00
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2011-12-14 22:58:12 +00:00
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LDFLAGS_vmlinux-y := -Bstatic
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LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie
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LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y)
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2017-05-11 17:40:40 +00:00
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LDFLAGS_vmlinux += $(call ld-option,--orphan-handling=warn)
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2005-09-26 06:04:21 +00:00
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2018-08-06 16:42:03 +00:00
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ifdef CONFIG_PPC64
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2012-11-26 17:41:08 +00:00
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ifeq ($(call cc-option-yn,-mcmodel=medium),y)
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# -mcmodel=medium breaks modules because it uses 32bit offsets from
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# the TOC pointer to create pointers where possible. Pointers into the
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# percpu data area are created by this method.
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#
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# The kernel module loader relocates the percpu data section from the
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# original location (starting with 0xd...) to somewhere in the base
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# kernel percpu data space (starting with 0xc...). We need a full
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# 64bit relocation for this to work, hence -mcmodel=large.
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KBUILD_CFLAGS_MODULE += -mcmodel=large
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else
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export NO_MINIMAL_TOC := -mno-minimal-toc
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endif
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endif
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2015-05-25 22:53:27 +00:00
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CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no)
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2018-08-06 16:42:03 +00:00
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ifdef CONFIG_CPU_LITTLE_ENDIAN
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2015-05-25 22:53:29 +00:00
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CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
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2014-03-10 10:06:12 +00:00
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AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
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else
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2016-11-27 02:46:20 +00:00
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CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
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2015-05-25 22:53:29 +00:00
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CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
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2016-11-27 02:46:20 +00:00
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AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
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2014-03-10 10:06:12 +00:00
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endif
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2015-05-25 22:53:29 +00:00
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CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
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2012-12-12 14:43:12 +00:00
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CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
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2018-03-01 01:02:49 +00:00
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2018-11-12 05:28:06 +00:00
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# Clang unconditionally reserves r2 on ppc32 and does not support the flag
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# https://bugs.llvm.org/show_bug.cgi?id=39555
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CFLAGS-$(CONFIG_PPC32) := $(call cc-option, -ffixed-r2)
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# Clang doesn't support -mmultiple / -mno-multiple
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# https://bugs.llvm.org/show_bug.cgi?id=39556
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CFLAGS-$(CONFIG_PPC32) += $(call cc-option, $(MULTIPLEWORD))
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2018-03-01 01:02:49 +00:00
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CFLAGS-$(CONFIG_PPC32) += $(call cc-option,-mno-readonly-in-sdata)
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2012-04-17 18:45:28 +00:00
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2018-08-06 16:42:03 +00:00
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ifdef CONFIG_PPC_BOOK3S_64
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ifdef CONFIG_CPU_LITTLE_ENDIAN
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2018-02-20 19:08:30 +00:00
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CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=power8
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2018-02-20 19:08:32 +00:00
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CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power9,-mtune=power8)
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2018-02-20 19:08:30 +00:00
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else
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2018-02-20 19:08:29 +00:00
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CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,$(call cc-option,-mtune=power5))
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CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mcpu=power5,-mcpu=power4)
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2018-02-20 19:08:30 +00:00
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endif
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2013-08-21 00:55:36 +00:00
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else
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CFLAGS-$(CONFIG_GENERIC_CPU) += -mcpu=powerpc64
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endif
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2018-09-14 05:08:53 +00:00
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ifdef CONFIG_FUNCTION_TRACER
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CC_FLAGS_FTRACE := -pg
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2016-03-03 04:27:00 +00:00
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ifdef CONFIG_MPROFILE_KERNEL
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2018-09-14 05:08:53 +00:00
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CC_FLAGS_FTRACE += -mprofile-kernel
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endif
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2018-09-14 05:08:54 +00:00
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# Work around gcc code-gen bugs with -pg / -fno-omit-frame-pointer in gcc <= 4.8
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44199
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52828
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2018-10-30 13:26:33 +00:00
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ifndef CONFIG_CC_IS_CLANG
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2018-09-14 05:08:54 +00:00
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CC_FLAGS_FTRACE += $(call cc-ifversion, -lt, 0409, -mno-sched-epilog)
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endif
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2016-03-03 04:27:00 +00:00
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endif
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2018-06-07 10:10:18 +00:00
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CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += $(call cc-option,-mcpu=$(CONFIG_TARGET_CPU))
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2012-04-17 18:45:28 +00:00
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2013-11-22 02:49:00 +00:00
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# Altivec option not allowed with e500mc64 in GCC.
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2018-08-06 16:42:03 +00:00
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ifdef CONFIG_ALTIVEC
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2013-11-22 02:49:00 +00:00
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E5500_CPU := -mcpu=powerpc64
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else
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2013-08-21 00:55:36 +00:00
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E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
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2013-11-22 02:49:00 +00:00
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endif
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2013-08-21 00:55:36 +00:00
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CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
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CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
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2018-08-06 16:42:03 +00:00
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ifdef CONFIG_PPC32
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ifdef CONFIG_PPC_E500MC
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2013-08-16 00:19:10 +00:00
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CFLAGS-y += $(call cc-option,-mcpu=e500mc,-mcpu=powerpc)
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else
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CFLAGS-$(CONFIG_E500) += $(call cc-option,-mcpu=8540 -msoft-float,-mcpu=powerpc)
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endif
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endif
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2014-05-15 16:33:42 +00:00
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asinstr := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1)
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2019-05-13 06:22:16 +00:00
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KBUILD_CPPFLAGS += -I $(srctree)/arch/$(ARCH) $(asinstr)
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2019-01-11 03:22:32 +00:00
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KBUILD_AFLAGS += $(AFLAGS-y)
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2015-05-25 22:53:27 +00:00
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KBUILD_CFLAGS += $(call cc-option,-msoft-float)
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2019-01-11 03:22:32 +00:00
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KBUILD_CFLAGS += -pipe $(CFLAGS-y)
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2007-10-14 20:21:35 +00:00
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CPP = $(CC) -E $(KBUILD_CFLAGS)
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2005-09-26 06:04:21 +00:00
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2016-08-11 06:03:14 +00:00
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CHECKFLAGS += -m$(BITS) -D__powerpc__ -D__powerpc$(BITS)__
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2016-07-12 00:54:51 +00:00
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ifdef CONFIG_CPU_BIG_ENDIAN
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CHECKFLAGS += -D__BIG_ENDIAN__
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else
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CHECKFLAGS += -D__LITTLE_ENDIAN__
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endif
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2005-09-26 06:04:21 +00:00
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2018-08-06 16:42:03 +00:00
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|
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ifdef CONFIG_476FPE_ERR46
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2014-02-24 07:00:56 +00:00
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KBUILD_LDFLAGS_MODULE += --ppc476-workaround \
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-T $(srctree)/arch/powerpc/platforms/44x/ppc476_modules.lds
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endif
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2012-04-17 18:45:28 +00:00
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# No AltiVec or VSX instructions when building kernel
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2007-10-14 20:21:35 +00:00
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KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
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2012-04-17 18:45:28 +00:00
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KBUILD_CFLAGS += $(call cc-option,-mno-vsx)
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2005-10-29 05:31:17 +00:00
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2007-10-18 21:53:19 +00:00
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# No SPE instruction when building kernel
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2008-09-01 14:23:02 +00:00
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# (We use all available options to help semi-broken compilers)
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2007-10-18 21:53:19 +00:00
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KBUILD_CFLAGS += $(call cc-option,-mno-spe)
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2008-09-01 14:23:02 +00:00
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KBUILD_CFLAGS += $(call cc-option,-mspe=no)
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2007-10-18 21:53:19 +00:00
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|
2010-02-02 22:40:02 +00:00
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# FIXME: the module load should be taught about the additional relocs
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# generated by this.
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# revert to pre-gcc-4.4 behaviour of .eh_frame
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|
KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
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|
2007-03-22 06:23:44 +00:00
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# Never use string load/store instructions as they are
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|
|
# often slow when they are implemented at all
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2015-05-25 22:53:27 +00:00
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|
|
KBUILD_CFLAGS += $(call cc-option,-mno-string)
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2005-09-26 06:04:21 +00:00
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cpu-as-$(CONFIG_4xx) += -Wa,-m405
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2015-11-25 23:45:49 +00:00
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|
|
cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec)
|
2005-09-26 06:04:21 +00:00
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|
|
cpu-as-$(CONFIG_E200) += -Wa,-me200
|
2018-07-12 21:41:49 +00:00
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|
|
cpu-as-$(CONFIG_E500) += -Wa,-me500
|
powerpc/Makefile: Fix PPC_BOOK3S_64 ASFLAGS
Ever since commit 15a3204d24a3 ("powerpc/64s: Set assembler machine type
to POWER4") we force -mpower4 to be passed to the assembler
irrespective of the CFLAGS used (for Book3s 64).
When building a powerpc64 kernel with clang, clang will not add -many
to the assembler flags, so any instructions that the compiler has
generated that are not available on power4 will cause an error:
/usr/bin/as -a64 -mppc64 -mlittle-endian -mpower8 \
-I ./arch/powerpc/include -I ./arch/powerpc/include/generated \
-I ./include -I ./arch/powerpc/include/uapi \
-I ./arch/powerpc/include/generated/uapi -I ./include/uapi \
-I ./include/generated/uapi -I arch/powerpc -I arch/powerpc \
-maltivec -mpower4 -o init/do_mounts.o /tmp/do_mounts-3b0a3d.s
/tmp/do_mounts-51ce54.s:748: Error: unrecognized opcode: `isel'
GCC does include -many, so the GCC driven gas call will succeed:
as -v -I ./arch/powerpc/include -I ./arch/powerpc/include/generated -I
./include -I ./arch/powerpc/include/uapi
-I ./arch/powerpc/include/generated/uapi -I ./include/uapi
-I ./include/generated/uapi -I arch/powerpc -I arch/powerpc
-a64 -mpower8 -many -mlittle -maltivec -mpower4 -o init/do_mounts.o
Note that isel is power7 and above for IBM CPUs. GCC only generates it
for Power9 and above, but the above test was run against the clang
generated assembly.
Peter Bergner explains:
When using -many -mpower4, gas will first try and find a matching
power4 mnemonic and failing that, it will then allow any valid
mnemonic that gas knows about. GCC's use of -many predates me
though.
IIRC, Alan looked at trying to remove it, but I forget why he
didn't. Could be either a gcc or gas issue at the time. I'm not sure
whether issue still exists or not. He and I have modified how gas
works internally a fair amount since he tried removing gcc use of
-many.
I will also note that when using -many, gas will choose the first
mnemonic that matches in the mnemonic table and we have (mostly)
sorted the table so that server mnemonics show up earlier in the
table than other mnemonics, so they'll be seen/chosen first.
By explicitly setting -many we can build with Clang and GCC while
retaining the -mpower4 option.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-11 02:43:03 +00:00
|
|
|
|
|
|
|
# When using '-many -mpower4' gas will first try and find a matching power4
|
|
|
|
# mnemonic and failing that it will allow any valid mnemonic that GAS knows
|
|
|
|
# about. GCC will pass -many to GAS when assembling, clang does not.
|
|
|
|
cpu-as-$(CONFIG_PPC_BOOK3S_64) += -Wa,-mpower4 -Wa,-many
|
2018-06-14 15:27:42 +00:00
|
|
|
cpu-as-$(CONFIG_PPC_E500MC) += $(call as-option,-Wa$(comma)-me500mc)
|
2005-09-26 06:04:21 +00:00
|
|
|
|
2007-10-15 19:59:31 +00:00
|
|
|
KBUILD_AFLAGS += $(cpu-as-y)
|
2007-10-14 20:21:35 +00:00
|
|
|
KBUILD_CFLAGS += $(cpu-as-y)
|
2005-09-26 06:04:21 +00:00
|
|
|
|
2016-08-09 12:43:46 +00:00
|
|
|
KBUILD_AFLAGS += $(aflags-y)
|
|
|
|
KBUILD_CFLAGS += $(cflags-y)
|
|
|
|
|
2016-08-11 06:03:14 +00:00
|
|
|
head-y := arch/powerpc/kernel/head_$(BITS).o
|
2017-08-08 11:58:54 +00:00
|
|
|
head-$(CONFIG_PPC_8xx) := arch/powerpc/kernel/head_8xx.o
|
2007-08-20 12:27:07 +00:00
|
|
|
head-$(CONFIG_40x) := arch/powerpc/kernel/head_40x.o
|
2005-09-26 06:04:21 +00:00
|
|
|
head-$(CONFIG_44x) := arch/powerpc/kernel/head_44x.o
|
|
|
|
head-$(CONFIG_FSL_BOOKE) := arch/powerpc/kernel/head_fsl_booke.o
|
|
|
|
|
2005-10-10 12:36:14 +00:00
|
|
|
head-$(CONFIG_PPC64) += arch/powerpc/kernel/entry_64.o
|
2005-09-26 06:04:21 +00:00
|
|
|
head-$(CONFIG_PPC_FPU) += arch/powerpc/kernel/fpu.o
|
2009-06-02 21:17:37 +00:00
|
|
|
head-$(CONFIG_ALTIVEC) += arch/powerpc/kernel/vector.o
|
2012-11-26 17:39:03 +00:00
|
|
|
head-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += arch/powerpc/kernel/prom_init.o
|
2005-09-26 06:04:21 +00:00
|
|
|
|
2018-10-10 05:13:05 +00:00
|
|
|
# See arch/powerpc/Kbuild for content of core part of the kernel
|
|
|
|
core-y += arch/powerpc/
|
2005-09-26 06:04:21 +00:00
|
|
|
|
|
|
|
drivers-$(CONFIG_OPROFILE) += arch/powerpc/oprofile/
|
|
|
|
|
2006-01-12 23:55:58 +00:00
|
|
|
# Default to zImage, override when needed
|
2008-02-06 18:18:34 +00:00
|
|
|
all: zImage
|
2005-09-26 06:04:21 +00:00
|
|
|
|
2010-08-02 20:47:48 +00:00
|
|
|
# With make 3.82 we cannot mix normal and wildcard targets
|
2010-08-15 22:26:56 +00:00
|
|
|
BOOT_TARGETS1 := zImage zImage.initrd uImage
|
2011-12-01 19:35:08 +00:00
|
|
|
BOOT_TARGETS2 := zImage% dtbImage% treeImage.% cuImage.% simpleImage.% uImage.%
|
2005-09-30 06:16:52 +00:00
|
|
|
|
2010-08-02 20:47:48 +00:00
|
|
|
PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2)
|
2005-09-30 06:16:52 +00:00
|
|
|
|
2005-11-16 02:38:21 +00:00
|
|
|
boot := arch/$(ARCH)/boot
|
2005-09-26 06:04:21 +00:00
|
|
|
|
2010-08-02 20:47:48 +00:00
|
|
|
$(BOOT_TARGETS1): vmlinux
|
powerpc: Stop passing ARCH=ppc64 to boot Makefile
Back in 2005 when the ppc/ppc64 merge started, we used to build the
kernel code in arch/powerpc but use the boot code from arch/ppc or
arch/ppc64 depending on whether we were building for 32 or 64-bit.
Originally we called the boot Makefile passing ARCH=$(OLDARCH), where
OLDARCH was ppc or ppc64.
In commit 20f629549b30 ("powerpc: Make building the boot image work for
both 32-bit and 64-bit") (2005-10-11) we split the call for 32/64-bit
using an ifeq check, because the two Makefiles took different targets,
and explicitly passed ARCH=ppc64 for the 64-bit case and ARCH=ppc for
the 32-bit case.
Then in commit 94b212c29f68 ("powerpc: Move ppc64 boot wrapper code over
to arch/powerpc") (2005-11-16) we moved the boot code into arch/powerpc
and dropped the ppc case, but kept passing ARCH=ppc64 to
arch/powerpc/boot/Makefile.
Since then there have been several more boot targets added, all of which
have copied the ARCH=ppc64 setting, such that now we have four targets
using it.
Currently it seems that nothing actually uses the ARCH value, but that's
basically just luck, and in particular it prevents us from using the
generic cpp_lds_S rule. It's also clearly wrong, ARCH=ppc64 is dead,
buried and cremated.
Fix it by dropping the setting of ARCH completely, the correct value is
exported by the top level Makefile.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-21 10:14:33 +00:00
|
|
|
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
|
2010-08-02 20:47:48 +00:00
|
|
|
$(BOOT_TARGETS2): vmlinux
|
powerpc: Stop passing ARCH=ppc64 to boot Makefile
Back in 2005 when the ppc/ppc64 merge started, we used to build the
kernel code in arch/powerpc but use the boot code from arch/ppc or
arch/ppc64 depending on whether we were building for 32 or 64-bit.
Originally we called the boot Makefile passing ARCH=$(OLDARCH), where
OLDARCH was ppc or ppc64.
In commit 20f629549b30 ("powerpc: Make building the boot image work for
both 32-bit and 64-bit") (2005-10-11) we split the call for 32/64-bit
using an ifeq check, because the two Makefiles took different targets,
and explicitly passed ARCH=ppc64 for the 64-bit case and ARCH=ppc for
the 32-bit case.
Then in commit 94b212c29f68 ("powerpc: Move ppc64 boot wrapper code over
to arch/powerpc") (2005-11-16) we moved the boot code into arch/powerpc
and dropped the ppc case, but kept passing ARCH=ppc64 to
arch/powerpc/boot/Makefile.
Since then there have been several more boot targets added, all of which
have copied the ARCH=ppc64 setting, such that now we have four targets
using it.
Currently it seems that nothing actually uses the ARCH value, but that's
basically just luck, and in particular it prevents us from using the
generic cpp_lds_S rule. It's also clearly wrong, ARCH=ppc64 is dead,
buried and cremated.
Fix it by dropping the setting of ARCH completely, the correct value is
exported by the top level Makefile.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-21 10:14:33 +00:00
|
|
|
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
|
2010-08-02 20:47:48 +00:00
|
|
|
|
|
|
|
|
|
|
|
bootwrapper_install:
|
powerpc: Stop passing ARCH=ppc64 to boot Makefile
Back in 2005 when the ppc/ppc64 merge started, we used to build the
kernel code in arch/powerpc but use the boot code from arch/ppc or
arch/ppc64 depending on whether we were building for 32 or 64-bit.
Originally we called the boot Makefile passing ARCH=$(OLDARCH), where
OLDARCH was ppc or ppc64.
In commit 20f629549b30 ("powerpc: Make building the boot image work for
both 32-bit and 64-bit") (2005-10-11) we split the call for 32/64-bit
using an ifeq check, because the two Makefiles took different targets,
and explicitly passed ARCH=ppc64 for the 64-bit case and ARCH=ppc for
the 32-bit case.
Then in commit 94b212c29f68 ("powerpc: Move ppc64 boot wrapper code over
to arch/powerpc") (2005-11-16) we moved the boot code into arch/powerpc
and dropped the ppc case, but kept passing ARCH=ppc64 to
arch/powerpc/boot/Makefile.
Since then there have been several more boot targets added, all of which
have copied the ARCH=ppc64 setting, such that now we have four targets
using it.
Currently it seems that nothing actually uses the ARCH value, but that's
basically just luck, and in particular it prevents us from using the
generic cpp_lds_S rule. It's also clearly wrong, ARCH=ppc64 is dead,
buried and cremated.
Fix it by dropping the setting of ARCH completely, the correct value is
exported by the top level Makefile.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-21 10:14:33 +00:00
|
|
|
$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
|
2007-12-03 02:56:58 +00:00
|
|
|
|
2015-05-26 01:36:57 +00:00
|
|
|
# Used to create 'merged defconfigs'
|
|
|
|
# To use it $(call) it with the first argument as the base defconfig
|
|
|
|
# and the second argument as a space separated list of .config files to merge,
|
|
|
|
# without the .config suffix.
|
|
|
|
define merge_into_defconfig
|
|
|
|
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
|
|
|
|
-m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/$(1) \
|
|
|
|
$(foreach config,$(2),$(srctree)/arch/$(ARCH)/configs/$(config).config)
|
|
|
|
+$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
|
|
|
|
endef
|
|
|
|
|
|
|
|
PHONY += pseries_le_defconfig
|
|
|
|
pseries_le_defconfig:
|
|
|
|
$(call merge_into_defconfig,pseries_defconfig,le)
|
|
|
|
|
2015-09-23 05:40:35 +00:00
|
|
|
PHONY += ppc64le_defconfig
|
|
|
|
ppc64le_defconfig:
|
|
|
|
$(call merge_into_defconfig,ppc64_defconfig,le)
|
|
|
|
|
2018-11-15 06:49:50 +00:00
|
|
|
PHONY += ppc64le_guest_defconfig
|
|
|
|
ppc64le_guest_defconfig:
|
|
|
|
$(call merge_into_defconfig,ppc64_defconfig,le guest)
|
|
|
|
|
|
|
|
PHONY += ppc64_guest_defconfig
|
|
|
|
ppc64_guest_defconfig:
|
|
|
|
$(call merge_into_defconfig,ppc64_defconfig,be guest)
|
|
|
|
|
2017-07-24 12:50:45 +00:00
|
|
|
PHONY += powernv_be_defconfig
|
|
|
|
powernv_be_defconfig:
|
|
|
|
$(call merge_into_defconfig,powernv_defconfig,be)
|
|
|
|
|
2015-07-29 23:14:04 +00:00
|
|
|
PHONY += mpc85xx_defconfig
|
|
|
|
mpc85xx_defconfig:
|
|
|
|
$(call merge_into_defconfig,mpc85xx_basic_defconfig,\
|
|
|
|
85xx-32bit 85xx-hw fsl-emb-nonhw)
|
|
|
|
|
|
|
|
PHONY += mpc85xx_smp_defconfig
|
|
|
|
mpc85xx_smp_defconfig:
|
|
|
|
$(call merge_into_defconfig,mpc85xx_basic_defconfig,\
|
|
|
|
85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw)
|
|
|
|
|
|
|
|
PHONY += corenet32_smp_defconfig
|
|
|
|
corenet32_smp_defconfig:
|
|
|
|
$(call merge_into_defconfig,corenet_basic_defconfig,\
|
2016-09-22 15:04:12 +00:00
|
|
|
85xx-32bit 85xx-smp 85xx-hw fsl-emb-nonhw dpaa)
|
2015-07-29 23:14:04 +00:00
|
|
|
|
|
|
|
PHONY += corenet64_smp_defconfig
|
|
|
|
corenet64_smp_defconfig:
|
|
|
|
$(call merge_into_defconfig,corenet_basic_defconfig,\
|
2016-09-22 15:04:12 +00:00
|
|
|
85xx-64bit 85xx-smp altivec 85xx-hw fsl-emb-nonhw dpaa)
|
2015-07-29 23:14:04 +00:00
|
|
|
|
2016-02-22 09:26:14 +00:00
|
|
|
PHONY += mpc86xx_defconfig
|
|
|
|
mpc86xx_defconfig:
|
|
|
|
$(call merge_into_defconfig,mpc86xx_basic_defconfig,\
|
|
|
|
86xx-hw fsl-emb-nonhw)
|
|
|
|
|
|
|
|
PHONY += mpc86xx_smp_defconfig
|
|
|
|
mpc86xx_smp_defconfig:
|
|
|
|
$(call merge_into_defconfig,mpc86xx_basic_defconfig,\
|
|
|
|
86xx-smp 86xx-hw fsl-emb-nonhw)
|
|
|
|
|
2018-07-09 14:24:25 +00:00
|
|
|
PHONY += ppc32_allmodconfig
|
|
|
|
ppc32_allmodconfig:
|
|
|
|
$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/book3s_32.config \
|
|
|
|
-f $(srctree)/Makefile allmodconfig
|
|
|
|
|
2019-02-07 05:16:51 +00:00
|
|
|
PHONY += ppc_defconfig
|
|
|
|
ppc_defconfig:
|
|
|
|
$(call merge_into_defconfig,book3s_32.config,)
|
|
|
|
|
2018-07-09 14:24:26 +00:00
|
|
|
PHONY += ppc64le_allmodconfig
|
|
|
|
ppc64le_allmodconfig:
|
|
|
|
$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/le.config \
|
|
|
|
-f $(srctree)/Makefile allmodconfig
|
|
|
|
|
|
|
|
PHONY += ppc64_book3e_allmodconfig
|
|
|
|
ppc64_book3e_allmodconfig:
|
|
|
|
$(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctree)/arch/powerpc/configs/85xx-64bit.config \
|
|
|
|
-f $(srctree)/Makefile allmodconfig
|
|
|
|
|
2005-09-26 06:04:21 +00:00
|
|
|
define archhelp
|
2008-06-25 20:14:36 +00:00
|
|
|
@echo '* zImage - Build default images selected by kernel config'
|
|
|
|
@echo ' zImage.* - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
|
|
|
|
@echo ' uImage - U-Boot native image format'
|
|
|
|
@echo ' cuImage.<dt> - Backwards compatible U-Boot image for older'
|
|
|
|
@echo ' versions which do not support device trees'
|
|
|
|
@echo ' dtbImage.<dt> - zImage with an embedded device tree blob'
|
|
|
|
@echo ' simpleImage.<dt> - Firmware independent image.'
|
|
|
|
@echo ' treeImage.<dt> - Support for older IBM 4xx firmware (not U-Boot)'
|
2005-09-26 06:04:21 +00:00
|
|
|
@echo ' install - Install kernel using'
|
2009-07-20 19:37:11 +00:00
|
|
|
@echo ' (your) ~/bin/$(INSTALLKERNEL) or'
|
|
|
|
@echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
|
2005-09-26 06:04:21 +00:00
|
|
|
@echo ' install to $$(INSTALL_PATH) and run lilo'
|
2005-11-18 04:43:34 +00:00
|
|
|
@echo ' *_defconfig - Select default config from arch/$(ARCH)/configs'
|
2008-06-25 20:14:36 +00:00
|
|
|
@echo ''
|
|
|
|
@echo ' Targets with <dt> embed a device tree blob inside the image'
|
|
|
|
@echo ' These targets support board with firmware that does not'
|
|
|
|
@echo ' support passing a device tree directly. Replace <dt> with the'
|
|
|
|
@echo ' name of a dts file from the arch/$(ARCH)/boot/dts/ directory'
|
|
|
|
@echo ' (minus the .dts extension).'
|
2005-09-26 06:04:21 +00:00
|
|
|
endef
|
|
|
|
|
2008-02-16 11:36:10 +00:00
|
|
|
install:
|
2008-02-06 18:18:34 +00:00
|
|
|
$(Q)$(MAKE) $(build)=$(boot) install
|
2007-04-10 11:05:31 +00:00
|
|
|
|
2007-10-02 20:30:04 +00:00
|
|
|
vdso_install:
|
2018-08-06 16:42:03 +00:00
|
|
|
ifdef CONFIG_PPC64
|
2007-10-02 20:30:04 +00:00
|
|
|
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso64 $@
|
|
|
|
endif
|
2019-03-22 04:24:37 +00:00
|
|
|
ifdef CONFIG_VDSO32
|
2007-10-02 20:30:04 +00:00
|
|
|
$(Q)$(MAKE) $(build)=arch/$(ARCH)/kernel/vdso32 $@
|
2019-03-22 04:24:37 +00:00
|
|
|
endif
|
2007-10-02 20:30:04 +00:00
|
|
|
|
2005-09-26 06:04:21 +00:00
|
|
|
archclean:
|
2005-09-28 05:53:36 +00:00
|
|
|
$(Q)$(MAKE) $(clean)=$(boot)
|
2006-02-10 09:51:07 +00:00
|
|
|
|
2005-09-26 06:04:21 +00:00
|
|
|
archprepare: checkbin
|
|
|
|
|
2018-12-17 10:40:36 +00:00
|
|
|
archheaders:
|
|
|
|
$(Q)$(MAKE) $(build)=arch/powerpc/kernel/syscalls all
|
|
|
|
|
2018-09-27 07:05:53 +00:00
|
|
|
ifdef CONFIG_STACKPROTECTOR
|
|
|
|
prepare: stack_protector_prepare
|
2005-09-26 06:04:21 +00:00
|
|
|
|
2018-09-27 07:05:53 +00:00
|
|
|
stack_protector_prepare: prepare0
|
2018-09-27 07:05:55 +00:00
|
|
|
ifdef CONFIG_PPC64
|
|
|
|
$(eval KBUILD_CFLAGS += -mstack-protector-guard-offset=$(shell awk '{if ($$2 == "PACA_CANARY") print $$3;}' include/generated/asm-offsets.h))
|
|
|
|
else
|
2018-09-27 07:05:53 +00:00
|
|
|
$(eval KBUILD_CFLAGS += -mstack-protector-guard-offset=$(shell awk '{if ($$2 == "TASK_CANARY") print $$3;}' include/generated/asm-offsets.h))
|
|
|
|
endif
|
2018-09-27 07:05:55 +00:00
|
|
|
endif
|
2018-09-27 07:05:53 +00:00
|
|
|
|
2019-01-31 10:08:58 +00:00
|
|
|
ifdef CONFIG_SMP
|
|
|
|
prepare: task_cpu_prepare
|
|
|
|
|
|
|
|
task_cpu_prepare: prepare0
|
2019-01-31 10:09:04 +00:00
|
|
|
$(eval KBUILD_CFLAGS += -D_TASK_CPU=$(shell awk '{if ($$2 == "TASK_CPU") print $$3;}' include/generated/asm-offsets.h))
|
2019-01-31 10:08:58 +00:00
|
|
|
endif
|
|
|
|
|
2018-09-14 05:08:52 +00:00
|
|
|
# Check toolchain versions:
|
|
|
|
# - gcc-4.6 is the minimum kernel-wide version so nothing required.
|
2005-09-26 06:04:21 +00:00
|
|
|
checkbin:
|
2015-04-23 07:27:12 +00:00
|
|
|
@if test "x${CONFIG_CPU_LITTLE_ENDIAN}" = "xy" \
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&& $(LD) --version | head -1 | grep ' 2\.24$$' >/dev/null ; then \
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echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \
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echo 'in some circumstances.' ; \
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echo -n '*** Please use a different binutils version.' ; \
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false ; \
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fi
|