mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 13:55:32 +00:00
![Linus Torvalds](/assets/img/avatar_default.png)
- Add powerpc qspinlock implementation optimised for large system scalability and paravirt. See the merge message for more details. - Enable objtool to be built on powerpc to generate mcount locations. - Use a temporary mm for code patching with the Radix MMU, so the writable mapping is restricted to the patching CPU. - Add an option to build the 64-bit big-endian kernel with the ELFv2 ABI. - Sanitise user registers on interrupt entry on 64-bit Book3S. - Many other small features and fixes. Thanks to: Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn Helgaas, Bo Liu, Chen Lifu, Christoph Hellwig, Christophe JAILLET, Christophe Leroy, Christopher M. Riedl, Colin Ian King, Deming Wang, Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven, Gustavo A. R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol Jain, Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan Lynch, Naveen N. Rao, Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Randy Dunlap, Rohan McLure, Russell Currey, Sathvika Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng, XueBing Chen, Yang Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu, Wolfram Sang. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEJFGtCPCthwEv2Y/bUevqPMjhpYAFAmOfrj8THG1wZUBlbGxl cm1hbi5pZC5hdQAKCRBR6+o8yOGlgIWtD/9mGF/ze2k+qFTo+30fb7bO8WJIDgsR dIASnZjXV7q/45elvymhUdkQv4R7xL3pzC40P1+ZKtWzGTNe+zWUQLoALNwRK85j 8CsxZbqefGNKE5Z6ZHo9s37wsu3+jJu9yEQpGFo1LINyzeclCn5St5oqfRam+Hd/ cPF+VfvREwZ0+YOKGBhJ2EgC+Gc9xsFY7DLQsoYlu71iZZr6Z6rgZW/EY5h3RMGS YKBoVwDsWaU0FpFWrr/rYTI6DqSr3AHr1+ftDg7ncCZMD6vQva6aMCCt94aLB1aE vC+DNdhZlA558bXGa5yA7Wr//7aUBUIwyC60DogOeZ6vw3kD9tdEd1fbH5hmqNKY K5bfqm28XU2959CTE8RDgsYYZvwDcfrjBIML14WZGdCQOTcGKpgOGp22o6yNb1Pq JKpHHnVpvu2PZ/p2XdKSm9+etr2yI6lXZAEVTS7ehdtMukButjSHEVbSCEZ8tlWz KokQt2J23BMHuSrXK6+67wWQBtdsLEk+LBOQmweiwarMocqvL/Zjz/5J7DR2DtH8 wlY3wOtB1+E5j7xZ+RgK3c3jNg5dH39ZwvFsSATWTI3P+iq6OK/bbk4q4LmZt2l9 ZIfH/CXPf9BvGCHzHa3AAd3UBbJLFwj17btMEv1wFVPS0T4LPUzkgTNTNUYeP6zL h1e5QfgUxvKPuQ== =7k3p -----END PGP SIGNATURE----- Merge tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: - Add powerpc qspinlock implementation optimised for large system scalability and paravirt. See the merge message for more details - Enable objtool to be built on powerpc to generate mcount locations - Use a temporary mm for code patching with the Radix MMU, so the writable mapping is restricted to the patching CPU - Add an option to build the 64-bit big-endian kernel with the ELFv2 ABI - Sanitise user registers on interrupt entry on 64-bit Book3S - Many other small features and fixes Thanks to Aboorva Devarajan, Angel Iglesias, Benjamin Gray, Bjorn Helgaas, Bo Liu, Chen Lifu, Christoph Hellwig, Christophe JAILLET, Christophe Leroy, Christopher M. Riedl, Colin Ian King, Deming Wang, Disha Goel, Dmitry Torokhov, Finn Thain, Geert Uytterhoeven, Gustavo A. R. Silva, Haowen Bai, Joel Stanley, Jordan Niethe, Julia Lawall, Kajol Jain, Laurent Dufour, Li zeming, Miaoqian Lin, Michael Jeanson, Nathan Lynch, Naveen N. Rao, Nayna Jain, Nicholas Miehlbradt, Nicholas Piggin, Pali Rohár, Randy Dunlap, Rohan McLure, Russell Currey, Sathvika Vasireddy, Shaomin Deng, Stephen Kitt, Stephen Rothwell, Thomas Weißschuh, Tiezhu Yang, Uwe Kleine-König, Xie Shaowen, Xiu Jianfeng, XueBing Chen, Yang Yingliang, Zhang Jiaming, ruanjinjie, Jessica Yu, and Wolfram Sang. * tag 'powerpc-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (181 commits) powerpc/code-patching: Fix oops with DEBUG_VM enabled powerpc/qspinlock: Fix 32-bit build powerpc/prom: Fix 32-bit build powerpc/rtas: mandate RTAS syscall filtering powerpc/rtas: define pr_fmt and convert printk call sites powerpc/rtas: clean up includes powerpc/rtas: clean up rtas_error_log_max initialization powerpc/pseries/eeh: use correct API for error log size powerpc/rtas: avoid scheduling in rtas_os_term() powerpc/rtas: avoid device tree lookups in rtas_os_term() powerpc/rtasd: use correct OF API for event scan rate powerpc/rtas: document rtas_call() powerpc/pseries: unregister VPA when hot unplugging a CPU powerpc/pseries: reset the RCU watchdogs after a LPM powerpc: Take in account addition CPU node when building kexec FDT powerpc: export the CPU node count powerpc/cpuidle: Set CPUIDLE_FLAG_POLLING for snooze state powerpc/dts/fsl: Fix pca954x i2c-mux node names cxl: Remove unnecessary cxl_pci_window_alignment() selftests/powerpc: Fix resource leaks ...
597 lines
22 KiB
Makefile
597 lines
22 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Backward compatibility
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asflags-y += $(EXTRA_AFLAGS)
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ccflags-y += $(EXTRA_CFLAGS)
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cppflags-y += $(EXTRA_CPPFLAGS)
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ldflags-y += $(EXTRA_LDFLAGS)
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# flags that take effect in current and sub directories
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KBUILD_AFLAGS += $(subdir-asflags-y)
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KBUILD_CFLAGS += $(subdir-ccflags-y)
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KBUILD_RUSTFLAGS += $(subdir-rustflags-y)
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# Figure out what we need to build from the various variables
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# ===========================================================================
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# When an object is listed to be built compiled-in and modular,
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# only build the compiled-in version
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obj-m := $(filter-out $(obj-y),$(obj-m))
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# Libraries are always collected in one lib file.
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# Filter out objects already built-in
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lib-y := $(filter-out $(obj-y), $(sort $(lib-y) $(lib-m)))
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# Subdirectories we need to descend into
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subdir-ym := $(sort $(subdir-y) $(subdir-m) \
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$(patsubst %/,%, $(filter %/, $(obj-y) $(obj-m))))
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# Handle objects in subdirs:
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# - If we encounter foo/ in $(obj-y), replace it by foo/built-in.a and
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# foo/modules.order
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# - If we encounter foo/ in $(obj-m), replace it by foo/modules.order
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#
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# Generate modules.order to determine modorder. Unfortunately, we don't have
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# information about ordering between -y and -m subdirs. Just put -y's first.
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ifdef need-modorder
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obj-m := $(patsubst %/,%/modules.order, $(filter %/, $(obj-y)) $(obj-m))
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else
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obj-m := $(filter-out %/, $(obj-m))
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endif
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ifdef need-builtin
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obj-y := $(patsubst %/, %/built-in.a, $(obj-y))
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else
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obj-y := $(filter-out %/, $(obj-y))
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endif
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# Expand $(foo-objs) $(foo-y) etc. by replacing their individuals
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suffix-search = $(strip $(foreach s, $3, $($(1:%$(strip $2)=%$s))))
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# List composite targets that are constructed by combining other targets
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multi-search = $(sort $(foreach m, $1, $(if $(call suffix-search, $m, $2, $3 -), $m)))
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# List primitive targets that are compiled from source files
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real-search = $(foreach m, $1, $(if $(call suffix-search, $m, $2, $3 -), $(call suffix-search, $m, $2, $3), $m))
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# If $(foo-objs), $(foo-y), $(foo-m), or $(foo-) exists, foo.o is a composite object
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multi-obj-y := $(call multi-search, $(obj-y), .o, -objs -y)
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multi-obj-m := $(call multi-search, $(obj-m), .o, -objs -y -m)
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multi-obj-ym := $(multi-obj-y) $(multi-obj-m)
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# Replace multi-part objects by their individual parts,
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# including built-in.a from subdirectories
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real-obj-y := $(call real-search, $(obj-y), .o, -objs -y)
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real-obj-m := $(call real-search, $(obj-m), .o, -objs -y -m)
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always-y += $(always-m)
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# hostprogs-always-y += foo
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# ... is a shorthand for
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# hostprogs += foo
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# always-y += foo
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hostprogs += $(hostprogs-always-y) $(hostprogs-always-m)
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always-y += $(hostprogs-always-y) $(hostprogs-always-m)
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# userprogs-always-y is likewise.
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userprogs += $(userprogs-always-y) $(userprogs-always-m)
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always-y += $(userprogs-always-y) $(userprogs-always-m)
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# DTB
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# If CONFIG_OF_ALL_DTBS is enabled, all DT blobs are built
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dtb-$(CONFIG_OF_ALL_DTBS) += $(dtb-)
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# Composite DTB (i.e. DTB constructed by overlay)
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multi-dtb-y := $(call multi-search, $(dtb-y), .dtb, -dtbs)
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# Primitive DTB compiled from *.dts
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real-dtb-y := $(call real-search, $(dtb-y), .dtb, -dtbs)
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# Base DTB that overlay is applied onto (each first word of $(*-dtbs) expansion)
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base-dtb-y := $(foreach m, $(multi-dtb-y), $(firstword $(call suffix-search, $m, .dtb, -dtbs)))
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always-y += $(dtb-y)
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# Add subdir path
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ifneq ($(obj),.)
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extra-y := $(addprefix $(obj)/,$(extra-y))
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always-y := $(addprefix $(obj)/,$(always-y))
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targets := $(addprefix $(obj)/,$(targets))
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obj-m := $(addprefix $(obj)/,$(obj-m))
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lib-y := $(addprefix $(obj)/,$(lib-y))
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real-obj-y := $(addprefix $(obj)/,$(real-obj-y))
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real-obj-m := $(addprefix $(obj)/,$(real-obj-m))
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multi-obj-m := $(addprefix $(obj)/, $(multi-obj-m))
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multi-dtb-y := $(addprefix $(obj)/, $(multi-dtb-y))
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real-dtb-y := $(addprefix $(obj)/, $(real-dtb-y))
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subdir-ym := $(addprefix $(obj)/,$(subdir-ym))
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endif
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# Finds the multi-part object the current object will be linked into.
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# If the object belongs to two or more multi-part objects, list them all.
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modname-multi = $(sort $(foreach m,$(multi-obj-ym),\
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$(if $(filter $*.o, $(call suffix-search, $m, .o, -objs -y -m)),$(m:.o=))))
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__modname = $(or $(modname-multi),$(basetarget))
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modname = $(subst $(space),:,$(__modname))
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modfile = $(addprefix $(obj)/,$(__modname))
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# target with $(obj)/ and its suffix stripped
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target-stem = $(basename $(patsubst $(obj)/%,%,$@))
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# These flags are needed for modversions and compiling, so we define them here
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# $(modname_flags) defines KBUILD_MODNAME as the name of the module it will
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# end up in (or would, if it gets compiled in)
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name-fix-token = $(subst $(comma),_,$(subst -,_,$1))
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name-fix = $(call stringify,$(call name-fix-token,$1))
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basename_flags = -DKBUILD_BASENAME=$(call name-fix,$(basetarget))
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modname_flags = -DKBUILD_MODNAME=$(call name-fix,$(modname)) \
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-D__KBUILD_MODNAME=kmod_$(call name-fix-token,$(modname))
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modfile_flags = -DKBUILD_MODFILE=$(call stringify,$(modfile))
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_c_flags = $(filter-out $(CFLAGS_REMOVE_$(target-stem).o), \
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$(filter-out $(ccflags-remove-y), \
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$(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) $(ccflags-y)) \
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$(CFLAGS_$(target-stem).o))
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_rust_flags = $(filter-out $(RUSTFLAGS_REMOVE_$(target-stem).o), \
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$(filter-out $(rustflags-remove-y), \
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$(KBUILD_RUSTFLAGS) $(rustflags-y)) \
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$(RUSTFLAGS_$(target-stem).o))
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_a_flags = $(filter-out $(AFLAGS_REMOVE_$(target-stem).o), \
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$(filter-out $(asflags-remove-y), \
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$(KBUILD_CPPFLAGS) $(KBUILD_AFLAGS) $(asflags-y)) \
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$(AFLAGS_$(target-stem).o))
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_cpp_flags = $(KBUILD_CPPFLAGS) $(cppflags-y) $(CPPFLAGS_$(target-stem).lds)
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#
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# Enable gcov profiling flags for a file, directory or for all files depending
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# on variables GCOV_PROFILE_obj.o, GCOV_PROFILE and CONFIG_GCOV_PROFILE_ALL
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# (in this order)
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#
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ifeq ($(CONFIG_GCOV_KERNEL),y)
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_c_flags += $(if $(patsubst n%,, \
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$(GCOV_PROFILE_$(basetarget).o)$(GCOV_PROFILE)$(CONFIG_GCOV_PROFILE_ALL)), \
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$(CFLAGS_GCOV))
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endif
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#
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# Enable address sanitizer flags for kernel except some files or directories
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# we don't want to check (depends on variables KASAN_SANITIZE_obj.o, KASAN_SANITIZE)
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#
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ifeq ($(CONFIG_KASAN),y)
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ifneq ($(CONFIG_KASAN_HW_TAGS),y)
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_c_flags += $(if $(patsubst n%,, \
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$(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
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$(CFLAGS_KASAN), $(CFLAGS_KASAN_NOSANITIZE))
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endif
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endif
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ifeq ($(CONFIG_KMSAN),y)
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_c_flags += $(if $(patsubst n%,, \
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$(KMSAN_SANITIZE_$(basetarget).o)$(KMSAN_SANITIZE)y), \
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$(CFLAGS_KMSAN))
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_c_flags += $(if $(patsubst n%,, \
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$(KMSAN_ENABLE_CHECKS_$(basetarget).o)$(KMSAN_ENABLE_CHECKS)y), \
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, -mllvm -msan-disable-checks=1)
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endif
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ifeq ($(CONFIG_UBSAN),y)
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_c_flags += $(if $(patsubst n%,, \
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$(UBSAN_SANITIZE_$(basetarget).o)$(UBSAN_SANITIZE)$(CONFIG_UBSAN_SANITIZE_ALL)), \
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$(CFLAGS_UBSAN))
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endif
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ifeq ($(CONFIG_KCOV),y)
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_c_flags += $(if $(patsubst n%,, \
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$(KCOV_INSTRUMENT_$(basetarget).o)$(KCOV_INSTRUMENT)$(CONFIG_KCOV_INSTRUMENT_ALL)), \
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$(CFLAGS_KCOV))
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endif
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#
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# Enable KCSAN flags except some files or directories we don't want to check
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# (depends on variables KCSAN_SANITIZE_obj.o, KCSAN_SANITIZE)
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#
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ifeq ($(CONFIG_KCSAN),y)
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_c_flags += $(if $(patsubst n%,, \
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$(KCSAN_SANITIZE_$(basetarget).o)$(KCSAN_SANITIZE)y), \
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$(CFLAGS_KCSAN))
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# Some uninstrumented files provide implied barriers required to avoid false
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# positives: set KCSAN_INSTRUMENT_BARRIERS for barrier instrumentation only.
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_c_flags += $(if $(patsubst n%,, \
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$(KCSAN_INSTRUMENT_BARRIERS_$(basetarget).o)$(KCSAN_INSTRUMENT_BARRIERS)n), \
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-D__KCSAN_INSTRUMENT_BARRIERS__)
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endif
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# $(srctree)/$(src) for including checkin headers from generated source files
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# $(objtree)/$(obj) for including generated headers from checkin source files
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ifeq ($(KBUILD_EXTMOD),)
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ifdef building_out_of_srctree
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_c_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
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_a_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
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_cpp_flags += -I $(srctree)/$(src) -I $(objtree)/$(obj)
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endif
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endif
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part-of-module = $(if $(filter $(basename $@).o, $(real-obj-m)),y)
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quiet_modtag = $(if $(part-of-module),[M], )
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modkern_cflags = \
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$(if $(part-of-module), \
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$(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \
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$(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL) $(modfile_flags))
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modkern_rustflags = \
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$(if $(part-of-module), \
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$(KBUILD_RUSTFLAGS_MODULE) $(RUSTFLAGS_MODULE), \
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$(KBUILD_RUSTFLAGS_KERNEL) $(RUSTFLAGS_KERNEL))
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modkern_aflags = $(if $(part-of-module), \
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$(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE), \
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$(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL))
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c_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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-include $(srctree)/include/linux/compiler_types.h \
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$(_c_flags) $(modkern_cflags) \
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$(basename_flags) $(modname_flags)
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rust_flags = $(_rust_flags) $(modkern_rustflags) @$(objtree)/include/generated/rustc_cfg
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a_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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$(_a_flags) $(modkern_aflags)
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cpp_flags = -Wp,-MMD,$(depfile) $(NOSTDINC_FLAGS) $(LINUXINCLUDE) \
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$(_cpp_flags)
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ld_flags = $(KBUILD_LDFLAGS) $(ldflags-y) $(LDFLAGS_$(@F))
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DTC_INCLUDE := $(srctree)/scripts/dtc/include-prefixes
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dtc_cpp_flags = -Wp,-MMD,$(depfile).pre.tmp -nostdinc \
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$(addprefix -I,$(DTC_INCLUDE)) \
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-undef -D__DTS__
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ifdef CONFIG_OBJTOOL
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objtool := $(objtree)/tools/objtool/objtool
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objtool-args-$(CONFIG_HAVE_JUMP_LABEL_HACK) += --hacks=jump_label
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objtool-args-$(CONFIG_HAVE_NOINSTR_HACK) += --hacks=noinstr
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objtool-args-$(CONFIG_CALL_DEPTH_TRACKING) += --hacks=skylake
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objtool-args-$(CONFIG_X86_KERNEL_IBT) += --ibt
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objtool-args-$(CONFIG_FINEIBT) += --cfi
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objtool-args-$(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL) += --mcount
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ifdef CONFIG_FTRACE_MCOUNT_USE_OBJTOOL
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objtool-args-$(CONFIG_HAVE_OBJTOOL_NOP_MCOUNT) += --mnop
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endif
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objtool-args-$(CONFIG_UNWINDER_ORC) += --orc
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objtool-args-$(CONFIG_RETPOLINE) += --retpoline
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objtool-args-$(CONFIG_RETHUNK) += --rethunk
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objtool-args-$(CONFIG_SLS) += --sls
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objtool-args-$(CONFIG_STACK_VALIDATION) += --stackval
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objtool-args-$(CONFIG_HAVE_STATIC_CALL_INLINE) += --static-call
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objtool-args-$(CONFIG_HAVE_UACCESS_VALIDATION) += --uaccess
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objtool-args-$(CONFIG_GCOV_KERNEL) += --no-unreachable
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objtool-args-$(CONFIG_PREFIX_SYMBOLS) += --prefix=$(CONFIG_FUNCTION_PADDING_BYTES)
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objtool-args = $(objtool-args-y) \
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$(if $(delay-objtool), --link) \
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$(if $(part-of-module), --module)
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delay-objtool := $(or $(CONFIG_LTO_CLANG),$(CONFIG_X86_KERNEL_IBT))
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cmd_objtool = $(if $(objtool-enabled), ; $(objtool) $(objtool-args) $@)
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cmd_gen_objtooldep = $(if $(objtool-enabled), { echo ; echo '$@: $$(wildcard $(objtool))' ; } >> $(dot-target).cmd)
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endif # CONFIG_OBJTOOL
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# Useful for describing the dependency of composite objects
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# Usage:
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# $(call multi_depend, multi_used_targets, suffix_to_remove, suffix_to_add)
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define multi_depend
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$(foreach m, $1, \
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$(eval $m: \
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$(addprefix $(obj)/, $(call suffix-search, $(patsubst $(obj)/%,%,$m), $2, $3))))
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endef
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# Copy a file
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# ===========================================================================
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# 'cp' preserves permissions. If you use it to copy a file in read-only srctree,
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# the copy would be read-only as well, leading to an error when executing the
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# rule next time. Use 'cat' instead in order to generate a writable file.
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quiet_cmd_copy = COPY $@
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cmd_copy = cat $< > $@
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$(obj)/%: $(src)/%_shipped
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$(call cmd,copy)
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# Commands useful for building a boot image
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# ===========================================================================
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#
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|
# Use as following:
|
|
#
|
|
# target: source(s) FORCE
|
|
# $(if_changed,ld/objcopy/gzip)
|
|
#
|
|
# and add target to 'targets' so that we know we have to
|
|
# read in the saved command line
|
|
|
|
# Linking
|
|
# ---------------------------------------------------------------------------
|
|
|
|
quiet_cmd_ld = LD $@
|
|
cmd_ld = $(LD) $(ld_flags) $(real-prereqs) -o $@
|
|
|
|
# Archive
|
|
# ---------------------------------------------------------------------------
|
|
|
|
quiet_cmd_ar = AR $@
|
|
cmd_ar = rm -f $@; $(AR) cDPrsT $@ $(real-prereqs)
|
|
|
|
# Objcopy
|
|
# ---------------------------------------------------------------------------
|
|
|
|
quiet_cmd_objcopy = OBJCOPY $@
|
|
cmd_objcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
|
|
|
|
# Gzip
|
|
# ---------------------------------------------------------------------------
|
|
|
|
quiet_cmd_gzip = GZIP $@
|
|
cmd_gzip = cat $(real-prereqs) | $(KGZIP) -n -f -9 > $@
|
|
|
|
# DTC
|
|
# ---------------------------------------------------------------------------
|
|
DTC ?= $(objtree)/scripts/dtc/dtc
|
|
DTC_FLAGS += -Wno-interrupt_provider \
|
|
-Wno-unique_unit_address
|
|
|
|
# Disable noisy checks by default
|
|
ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
|
|
DTC_FLAGS += -Wno-unit_address_vs_reg \
|
|
-Wno-avoid_unnecessary_addr_size \
|
|
-Wno-alias_paths \
|
|
-Wno-graph_child_address \
|
|
-Wno-simple_bus_reg
|
|
else
|
|
DTC_FLAGS += \
|
|
-Wunique_unit_address_if_enabled
|
|
endif
|
|
|
|
ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),)
|
|
DTC_FLAGS += -Wnode_name_chars_strict \
|
|
-Wproperty_name_chars_strict \
|
|
-Winterrupt_provider \
|
|
-Wunique_unit_address
|
|
endif
|
|
|
|
DTC_FLAGS += $(DTC_FLAGS_$(basetarget))
|
|
|
|
# Set -@ if the target is a base DTB that overlay is applied onto
|
|
DTC_FLAGS += $(if $(filter $(patsubst $(obj)/%,%,$@), $(base-dtb-y)), -@)
|
|
|
|
# Generate an assembly file to wrap the output of the device tree compiler
|
|
quiet_cmd_dt_S_dtb= DTBS $@
|
|
cmd_dt_S_dtb= \
|
|
{ \
|
|
echo '\#include <asm-generic/vmlinux.lds.h>'; \
|
|
echo '.section .dtb.init.rodata,"a"'; \
|
|
echo '.balign STRUCT_ALIGNMENT'; \
|
|
echo '.global __dtb_$(subst -,_,$(*F))_begin'; \
|
|
echo '__dtb_$(subst -,_,$(*F))_begin:'; \
|
|
echo '.incbin "$<" '; \
|
|
echo '__dtb_$(subst -,_,$(*F))_end:'; \
|
|
echo '.global __dtb_$(subst -,_,$(*F))_end'; \
|
|
echo '.balign STRUCT_ALIGNMENT'; \
|
|
} > $@
|
|
|
|
$(obj)/%.dtb.S: $(obj)/%.dtb FORCE
|
|
$(call if_changed,dt_S_dtb)
|
|
|
|
# Generate an assembly file to wrap the output of the device tree compiler
|
|
quiet_cmd_dt_S_dtbo= DTBOS $@
|
|
cmd_dt_S_dtbo= \
|
|
{ \
|
|
echo '\#include <asm-generic/vmlinux.lds.h>'; \
|
|
echo '.section .dtb.init.rodata,"a"'; \
|
|
echo '.balign STRUCT_ALIGNMENT'; \
|
|
echo '.global __dtbo_$(subst -,_,$(*F))_begin'; \
|
|
echo '__dtbo_$(subst -,_,$(*F))_begin:'; \
|
|
echo '.incbin "$<" '; \
|
|
echo '__dtbo_$(subst -,_,$(*F))_end:'; \
|
|
echo '.global __dtbo_$(subst -,_,$(*F))_end'; \
|
|
echo '.balign STRUCT_ALIGNMENT'; \
|
|
} > $@
|
|
|
|
$(obj)/%.dtbo.S: $(obj)/%.dtbo FORCE
|
|
$(call if_changed,dt_S_dtbo)
|
|
|
|
quiet_cmd_dtc = DTC $@
|
|
cmd_dtc = $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
|
|
$(DTC) -o $@ -b 0 \
|
|
$(addprefix -i,$(dir $<) $(DTC_INCLUDE)) $(DTC_FLAGS) \
|
|
-d $(depfile).dtc.tmp $(dtc-tmp) ; \
|
|
cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
|
|
|
|
quiet_cmd_fdtoverlay = DTOVL $@
|
|
cmd_fdtoverlay = $(objtree)/scripts/dtc/fdtoverlay -o $@ -i $(real-prereqs)
|
|
|
|
$(multi-dtb-y): FORCE
|
|
$(call if_changed,fdtoverlay)
|
|
$(call multi_depend, $(multi-dtb-y), .dtb, -dtbs)
|
|
|
|
ifneq ($(CHECK_DTBS)$(CHECK_DT_BINDING),)
|
|
DT_CHECKER ?= dt-validate
|
|
DT_CHECKER_FLAGS ?= $(if $(DT_SCHEMA_FILES),-l $(DT_SCHEMA_FILES),-m)
|
|
DT_BINDING_DIR := Documentation/devicetree/bindings
|
|
DT_TMP_SCHEMA := $(objtree)/$(DT_BINDING_DIR)/processed-schema.json
|
|
|
|
quiet_cmd_dtb = DTC_CHK $@
|
|
cmd_dtb = $(cmd_dtc) ; $(DT_CHECKER) $(DT_CHECKER_FLAGS) -u $(srctree)/$(DT_BINDING_DIR) -p $(DT_TMP_SCHEMA) $@ || true
|
|
else
|
|
quiet_cmd_dtb = $(quiet_cmd_dtc)
|
|
cmd_dtb = $(cmd_dtc)
|
|
endif
|
|
|
|
$(obj)/%.dtb: $(src)/%.dts $(DTC) $(DT_TMP_SCHEMA) FORCE
|
|
$(call if_changed_dep,dtb)
|
|
|
|
$(obj)/%.dtbo: $(src)/%.dts $(DTC) FORCE
|
|
$(call if_changed_dep,dtc)
|
|
|
|
$(obj)/%.dtbo: $(src)/%.dtso $(DTC) FORCE
|
|
$(call if_changed_dep,dtc)
|
|
|
|
dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
|
|
|
|
# Bzip2
|
|
# ---------------------------------------------------------------------------
|
|
|
|
# Bzip2 and LZMA do not include size in file... so we have to fake that;
|
|
# append the size as a 32-bit littleendian number as gzip does.
|
|
size_append = printf $(shell \
|
|
dec_size=0; \
|
|
for F in $(real-prereqs); do \
|
|
fsize=$$($(CONFIG_SHELL) $(srctree)/scripts/file-size.sh $$F); \
|
|
dec_size=$$(expr $$dec_size + $$fsize); \
|
|
done; \
|
|
printf "%08x\n" $$dec_size | \
|
|
sed 's/\(..\)/\1 /g' | { \
|
|
read ch0 ch1 ch2 ch3; \
|
|
for ch in $$ch3 $$ch2 $$ch1 $$ch0; do \
|
|
printf '%s%03o' '\\' $$((0x$$ch)); \
|
|
done; \
|
|
} \
|
|
)
|
|
|
|
quiet_cmd_file_size = GEN $@
|
|
cmd_file_size = $(size_append) > $@
|
|
|
|
quiet_cmd_bzip2 = BZIP2 $@
|
|
cmd_bzip2 = cat $(real-prereqs) | $(KBZIP2) -9 > $@
|
|
|
|
quiet_cmd_bzip2_with_size = BZIP2 $@
|
|
cmd_bzip2_with_size = { cat $(real-prereqs) | $(KBZIP2) -9; $(size_append); } > $@
|
|
|
|
# Lzma
|
|
# ---------------------------------------------------------------------------
|
|
|
|
quiet_cmd_lzma = LZMA $@
|
|
cmd_lzma = cat $(real-prereqs) | $(LZMA) -9 > $@
|
|
|
|
quiet_cmd_lzma_with_size = LZMA $@
|
|
cmd_lzma_with_size = { cat $(real-prereqs) | $(LZMA) -9; $(size_append); } > $@
|
|
|
|
quiet_cmd_lzo = LZO $@
|
|
cmd_lzo = cat $(real-prereqs) | $(KLZOP) -9 > $@
|
|
|
|
quiet_cmd_lzo_with_size = LZO $@
|
|
cmd_lzo_with_size = { cat $(real-prereqs) | $(KLZOP) -9; $(size_append); } > $@
|
|
|
|
quiet_cmd_lz4 = LZ4 $@
|
|
cmd_lz4 = cat $(real-prereqs) | $(LZ4) -l -c1 stdin stdout > $@
|
|
|
|
quiet_cmd_lz4_with_size = LZ4 $@
|
|
cmd_lz4_with_size = { cat $(real-prereqs) | $(LZ4) -l -c1 stdin stdout; \
|
|
$(size_append); } > $@
|
|
|
|
# U-Boot mkimage
|
|
# ---------------------------------------------------------------------------
|
|
|
|
MKIMAGE := $(srctree)/scripts/mkuboot.sh
|
|
|
|
# SRCARCH just happens to match slightly more than ARCH (on sparc), so reduces
|
|
# the number of overrides in arch makefiles
|
|
UIMAGE_ARCH ?= $(SRCARCH)
|
|
UIMAGE_COMPRESSION ?= $(or $(2),none)
|
|
UIMAGE_OPTS-y ?=
|
|
UIMAGE_TYPE ?= kernel
|
|
UIMAGE_LOADADDR ?= arch_must_set_this
|
|
UIMAGE_ENTRYADDR ?= $(UIMAGE_LOADADDR)
|
|
UIMAGE_NAME ?= 'Linux-$(KERNELRELEASE)'
|
|
|
|
quiet_cmd_uimage = UIMAGE $@
|
|
cmd_uimage = $(BASH) $(MKIMAGE) -A $(UIMAGE_ARCH) -O linux \
|
|
-C $(UIMAGE_COMPRESSION) $(UIMAGE_OPTS-y) \
|
|
-T $(UIMAGE_TYPE) \
|
|
-a $(UIMAGE_LOADADDR) -e $(UIMAGE_ENTRYADDR) \
|
|
-n $(UIMAGE_NAME) -d $< $@
|
|
|
|
# XZ
|
|
# ---------------------------------------------------------------------------
|
|
# Use xzkern to compress the kernel image and xzmisc to compress other things.
|
|
#
|
|
# xzkern uses a big LZMA2 dictionary since it doesn't increase memory usage
|
|
# of the kernel decompressor. A BCJ filter is used if it is available for
|
|
# the target architecture. xzkern also appends uncompressed size of the data
|
|
# using size_append. The .xz format has the size information available at
|
|
# the end of the file too, but it's in more complex format and it's good to
|
|
# avoid changing the part of the boot code that reads the uncompressed size.
|
|
# Note that the bytes added by size_append will make the xz tool think that
|
|
# the file is corrupt. This is expected.
|
|
#
|
|
# xzmisc doesn't use size_append, so it can be used to create normal .xz
|
|
# files. xzmisc uses smaller LZMA2 dictionary than xzkern, because a very
|
|
# big dictionary would increase the memory usage too much in the multi-call
|
|
# decompression mode. A BCJ filter isn't used either.
|
|
quiet_cmd_xzkern = XZKERN $@
|
|
cmd_xzkern = cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh > $@
|
|
|
|
quiet_cmd_xzkern_with_size = XZKERN $@
|
|
cmd_xzkern_with_size = { cat $(real-prereqs) | sh $(srctree)/scripts/xz_wrap.sh; \
|
|
$(size_append); } > $@
|
|
|
|
quiet_cmd_xzmisc = XZMISC $@
|
|
cmd_xzmisc = cat $(real-prereqs) | $(XZ) --check=crc32 --lzma2=dict=1MiB > $@
|
|
|
|
# ZSTD
|
|
# ---------------------------------------------------------------------------
|
|
# Appends the uncompressed size of the data using size_append. The .zst
|
|
# format has the size information available at the beginning of the file too,
|
|
# but it's in a more complex format and it's good to avoid changing the part
|
|
# of the boot code that reads the uncompressed size.
|
|
#
|
|
# Note that the bytes added by size_append will make the zstd tool think that
|
|
# the file is corrupt. This is expected.
|
|
#
|
|
# zstd uses a maximum window size of 8 MB. zstd22 uses a maximum window size of
|
|
# 128 MB. zstd22 is used for kernel compression because it is decompressed in a
|
|
# single pass, so zstd doesn't need to allocate a window buffer. When streaming
|
|
# decompression is used, like initramfs decompression, zstd22 should likely not
|
|
# be used because it would require zstd to allocate a 128 MB buffer.
|
|
|
|
quiet_cmd_zstd = ZSTD $@
|
|
cmd_zstd = cat $(real-prereqs) | $(ZSTD) -19 > $@
|
|
|
|
quiet_cmd_zstd22 = ZSTD22 $@
|
|
cmd_zstd22 = cat $(real-prereqs) | $(ZSTD) -22 --ultra > $@
|
|
|
|
quiet_cmd_zstd22_with_size = ZSTD22 $@
|
|
cmd_zstd22_with_size = { cat $(real-prereqs) | $(ZSTD) -22 --ultra; $(size_append); } > $@
|
|
|
|
# ASM offsets
|
|
# ---------------------------------------------------------------------------
|
|
|
|
# Default sed regexp - multiline due to syntax constraints
|
|
#
|
|
# Use [:space:] because LLVM's integrated assembler inserts <tab> around
|
|
# the .ascii directive whereas GCC keeps the <space> as-is.
|
|
define sed-offsets
|
|
's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; \
|
|
/^->/{s:->#\(.*\):/* \1 */:; \
|
|
s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
|
|
s:->::; p;}'
|
|
endef
|
|
|
|
# Use filechk to avoid rebuilds when a header changes, but the resulting file
|
|
# does not
|
|
define filechk_offsets
|
|
echo "#ifndef $2"; \
|
|
echo "#define $2"; \
|
|
echo "/*"; \
|
|
echo " * DO NOT MODIFY."; \
|
|
echo " *"; \
|
|
echo " * This file was generated by Kbuild"; \
|
|
echo " */"; \
|
|
echo ""; \
|
|
sed -ne $(sed-offsets) < $<; \
|
|
echo ""; \
|
|
echo "#endif"
|
|
endef
|