help me, what is this witchcraft
This commit is contained in:
SaschaNes
442
Makefile
442
Makefile
@@ -5,16 +5,13 @@ SUBLEVEL = 30
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EXTRAVERSION =
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NAME = Hurr durr I'ma ninja sloth
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# *DOCUMENTATION*
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# To see a list of typical targets execute "make help"
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# More info can be located in ./README
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# Comments in this file are targeted only to the developer, do not
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# expect to learn how to build the kernel reading this file.
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ifeq ($(filter undefine,$(.FEATURES)),)
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$(error GNU Make >= 3.82 is required. Your Make version is $(MAKE_VERSION))
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endif
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$(if $(filter __%, $(MAKECMDGOALS)), \
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$(error targets prefixed with '__' are only for internal use))
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@@ -38,10 +35,6 @@ __all:
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# descending is started. They are now explicitly listed as the
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# prepare rule.
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this-makefile := $(lastword $(MAKEFILE_LIST))
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export abs_srctree := $(realpath $(dir $(this-makefile)))
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export abs_objtree := $(CURDIR)
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ifneq ($(sub_make_done),1)
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# Do not use make's built-in rules and variables
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@@ -60,21 +53,26 @@ unexport GREP_OPTIONS
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# Beautify output
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# ---------------------------------------------------------------------------
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#
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# Most of build commands in Kbuild start with "cmd_". You can optionally define
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# "quiet_cmd_*". If defined, the short log is printed. Otherwise, no log from
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# that command is printed by default.
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# Normally, we echo the whole command before executing it. By making
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# that echo $($(quiet)$(cmd)), we now have the possibility to set
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# $(quiet) to choose other forms of output instead, e.g.
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#
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# e.g.)
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# quiet_cmd_depmod = DEPMOD $(MODLIB)
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# cmd_depmod = $(srctree)/scripts/depmod.sh $(DEPMOD) $(KERNELRELEASE)
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# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
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# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
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#
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# If $(quiet) is empty, the whole command will be printed.
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# If it is set to "quiet_", only the short version will be printed.
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# If it is set to "silent_", nothing will be printed at all, since
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# the variable $(silent_cmd_cc_o_c) doesn't exist.
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#
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# A simple variant is to prefix commands with $(Q) - that's useful
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||||
# for commands that shall be hidden in non-verbose mode.
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#
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# $(Q)$(MAKE) $(build)=scripts/basic
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# $(Q)ln $@ :<
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#
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# If KBUILD_VERBOSE contains 1, the whole command is echoed.
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# If KBUILD_VERBOSE contains 2, the reason for rebuilding is printed.
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# If KBUILD_VERBOSE equals 0 then the above command will be hidden.
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# If KBUILD_VERBOSE equals 1 then the above command is displayed.
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# If KBUILD_VERBOSE equals 2 then give the reason why each target is rebuilt.
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#
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# To put more focus on warnings, be less verbose as default
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# Use 'make V=1' to see the full commands
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@@ -82,13 +80,16 @@ unexport GREP_OPTIONS
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ifeq ("$(origin V)", "command line")
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KBUILD_VERBOSE = $(V)
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endif
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ifndef KBUILD_VERBOSE
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KBUILD_VERBOSE = 0
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endif
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quiet = quiet_
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Q = @
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ifneq ($(findstring 1, $(KBUILD_VERBOSE)),)
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ifeq ($(KBUILD_VERBOSE),1)
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quiet =
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Q =
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else
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quiet=quiet_
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Q = @
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endif
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# If the user is running make -s (silent mode), suppress echoing of
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@@ -96,14 +97,14 @@ endif
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# make-4.0 (and later) keep single letter options in the 1st word of MAKEFLAGS.
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ifeq ($(filter 3.%,$(MAKE_VERSION)),)
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short-opts := $(firstword -$(MAKEFLAGS))
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silence:=$(findstring s,$(firstword -$(MAKEFLAGS)))
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else
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short-opts := $(filter-out --%,$(MAKEFLAGS))
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silence:=$(findstring s,$(filter-out --%,$(MAKEFLAGS)))
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endif
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ifneq ($(findstring s,$(short-opts)),)
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ifeq ($(silence),s)
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quiet=silent_
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override KBUILD_VERBOSE :=
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KBUILD_VERBOSE = 0
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endif
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export quiet Q KBUILD_VERBOSE
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@@ -207,12 +208,32 @@ $(if $(abs_objtree),, \
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# $(realpath ...) resolves symlinks
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abs_objtree := $(realpath $(abs_objtree))
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else
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abs_objtree := $(CURDIR)
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endif # ifneq ($(KBUILD_OUTPUT),)
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ifeq ($(abs_objtree),$(CURDIR))
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# Suppress "Entering directory ..." unless we are changing the work directory.
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MAKEFLAGS += --no-print-directory
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else
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need-sub-make := 1
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endif
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this-makefile := $(lastword $(MAKEFILE_LIST))
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abs_srctree := $(realpath $(dir $(this-makefile)))
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ifneq ($(words $(subst :, ,$(abs_srctree))), 1)
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$(error source directory cannot contain spaces or colons)
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endif
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ifneq ($(abs_srctree),$(abs_objtree))
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# Look for make include files relative to root of kernel src
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#
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# --included-dir is added for backward compatibility, but you should not rely on
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# it. Please add $(srctree)/ prefix to include Makefiles in the source tree.
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MAKEFLAGS += --include-dir=$(abs_srctree)
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endif
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ifneq ($(filter 3.%,$(MAKE_VERSION)),)
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# 'MAKEFLAGS += -rR' does not immediately become effective for GNU Make 3.x
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# We need to invoke sub-make to avoid implicit rules in the top Makefile.
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@@ -221,25 +242,9 @@ need-sub-make := 1
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$(this-makefile): ;
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endif
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export abs_srctree abs_objtree
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export sub_make_done := 1
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endif # sub_make_done
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ifeq ($(abs_objtree),$(CURDIR))
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# Suppress "Entering directory ..." if we are at the final work directory.
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no-print-directory := --no-print-directory
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else
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# Recursion to show "Entering directory ..."
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need-sub-make := 1
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endif
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ifeq ($(filter --no-print-directory, $(MAKEFLAGS)),)
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# If --no-print-directory is unset, recurse once again to set it.
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||||
# You may end up recursing into __sub-make twice. This is needed due to the
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# behavior change in GNU Make 4.4.1.
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need-sub-make := 1
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endif
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ifeq ($(need-sub-make),1)
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PHONY += $(MAKECMDGOALS) __sub-make
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@@ -249,12 +254,18 @@ $(filter-out $(this-makefile), $(MAKECMDGOALS)) __all: __sub-make
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# Invoke a second make in the output directory, passing relevant variables
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__sub-make:
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$(Q)$(MAKE) $(no-print-directory) -C $(abs_objtree) \
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-f $(abs_srctree)/Makefile $(MAKECMDGOALS)
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$(Q)$(MAKE) -C $(abs_objtree) -f $(abs_srctree)/Makefile $(MAKECMDGOALS)
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else # need-sub-make
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endif # need-sub-make
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endif # sub_make_done
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||||
# We process the rest of the Makefile if this is the final invocation of make
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ifeq ($(need-sub-make),)
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||||
# Do not print "Entering directory ...",
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||||
# but we want to display it when entering to the output directory
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||||
# so that IDEs/editors are able to understand relative filenames.
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MAKEFLAGS += --no-print-directory
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ifeq ($(abs_srctree),$(abs_objtree))
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# building in the source tree
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@@ -298,10 +309,10 @@ no-dot-config-targets := $(clean-targets) \
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# Installation targets should not require compiler. Unfortunately, vdso_install
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# is an exception where build artifacts may be updated. This must be fixed.
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no-compiler-targets := $(no-dot-config-targets) install dtbs_install \
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headers_install modules_install modules_sign kernelrelease image_name
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no-sync-config-targets := $(no-dot-config-targets) %install modules_sign kernelrelease \
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headers_install modules_install kernelrelease image_name
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no-sync-config-targets := $(no-dot-config-targets) %install kernelrelease \
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image_name
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single-targets := %.a %.i %.ko %.lds %.ll %.lst %.mod %.o %.rsi %.s %.symtypes %/
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single-targets := %.a %.i %.rsi %.ko %.lds %.ll %.lst %.mod %.o %.s %.symtypes %/
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config-build :=
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mixed-build :=
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@@ -384,7 +395,7 @@ else # !mixed-build
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include $(srctree)/scripts/Kbuild.include
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# Read KERNELRELEASE from include/config/kernel.release (if it exists)
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KERNELRELEASE = $(call read-file, include/config/kernel.release)
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KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
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KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
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export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
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@@ -467,7 +478,8 @@ HOSTRUSTC = rustc
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HOSTPKG_CONFIG = pkg-config
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KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes \
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-O2 -fomit-frame-pointer -std=gnu11
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-O2 -fomit-frame-pointer -std=gnu11 \
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-Wdeclaration-after-statement
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KBUILD_USERCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(USERCFLAGS)
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KBUILD_USERLDFLAGS := $(USERLDFLAGS)
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@@ -485,7 +497,6 @@ export rust_common_flags := --edition=2021 \
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-Dclippy::let_unit_value -Dclippy::mut_mut \
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-Dclippy::needless_bitwise_bool \
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-Dclippy::needless_continue \
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-Dclippy::no_mangle_with_rust_abi \
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-Wclippy::dbg_macro
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KBUILD_HOSTCFLAGS := $(KBUILD_USERHOSTCFLAGS) $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
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@@ -528,6 +539,7 @@ LEX = flex
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YACC = bison
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AWK = awk
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INSTALLKERNEL := installkernel
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DEPMOD = depmod
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PERL = perl
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PYTHON3 = python3
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CHECK = sparse
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@@ -573,17 +585,14 @@ LINUXINCLUDE := \
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$(USERINCLUDE)
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KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-PIE
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KBUILD_CFLAGS :=
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KBUILD_CFLAGS += -std=gnu11
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KBUILD_CFLAGS += -fshort-wchar
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KBUILD_CFLAGS += -funsigned-char
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KBUILD_CFLAGS += -fno-common
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KBUILD_CFLAGS += -fno-PIE
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KBUILD_CFLAGS += -fno-strict-aliasing
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KBUILD_CFLAGS := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \
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-fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
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-Werror=implicit-function-declaration -Werror=implicit-int \
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-Werror=return-type -Wno-format-security \
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-std=gnu11
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KBUILD_CPPFLAGS := -D__KERNEL__
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KBUILD_RUSTFLAGS := $(rust_common_flags) \
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--target=$(objtree)/rust/target.json \
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-Cpanic=abort -Cembed-bitcode=n -Clto=n \
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||||
-Cforce-unwind-tables=n -Ccodegen-units=1 \
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-Csymbol-mangling-version=v0 \
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@@ -834,6 +843,10 @@ endif # may-sync-config
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endif # need-config
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KBUILD_CFLAGS += -fno-delete-null-pointer-checks
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KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,)
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KBUILD_CFLAGS += $(call cc-disable-warning, format-truncation)
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KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow)
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KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
|
||||
|
||||
ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE
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||||
KBUILD_CFLAGS += -O2
|
||||
@@ -864,15 +877,40 @@ ifdef CONFIG_READABLE_ASM
|
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KBUILD_CFLAGS += -fno-reorder-blocks -fno-ipa-cp-clone -fno-partial-inlining
|
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endif
|
||||
|
||||
ifneq ($(CONFIG_FRAME_WARN),0)
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KBUILD_CFLAGS += -Wframe-larger-than=$(CONFIG_FRAME_WARN)
|
||||
endif
|
||||
|
||||
stackp-flags-y := -fno-stack-protector
|
||||
stackp-flags-$(CONFIG_STACKPROTECTOR) := -fstack-protector
|
||||
stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) := -fstack-protector-strong
|
||||
|
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KBUILD_CFLAGS += $(stackp-flags-y)
|
||||
|
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KBUILD_CFLAGS-$(CONFIG_WERROR) += -Werror
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KBUILD_CFLAGS-$(CONFIG_CC_NO_ARRAY_BOUNDS) += -Wno-array-bounds
|
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KBUILD_RUSTFLAGS-$(CONFIG_WERROR) += -Dwarnings
|
||||
KBUILD_RUSTFLAGS += $(KBUILD_RUSTFLAGS-y)
|
||||
|
||||
ifdef CONFIG_CC_IS_CLANG
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KBUILD_CPPFLAGS += -Qunused-arguments
|
||||
# The kernel builds with '-std=gnu11' so use of GNU extensions is acceptable.
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||||
KBUILD_CFLAGS += -Wno-gnu
|
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else
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|
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# gcc inanely warns about local variables called 'main'
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KBUILD_CFLAGS += -Wno-main
|
||||
endif
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||||
|
||||
# These warnings generated too much noise in a regular build.
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||||
# Use make W=1 to enable them (see scripts/Makefile.extrawarn)
|
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KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
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KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)
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|
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# These result in bogus false positives
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KBUILD_CFLAGS += $(call cc-disable-warning, dangling-pointer)
|
||||
|
||||
ifdef CONFIG_FRAME_POINTER
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KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
|
||||
KBUILD_RUSTFLAGS += -Cforce-frame-pointers=y
|
||||
@@ -899,9 +937,7 @@ ifdef CONFIG_INIT_STACK_ALL_ZERO
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KBUILD_CFLAGS += -ftrivial-auto-var-init=zero
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ifdef CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_ENABLER
|
||||
# https://github.com/llvm/llvm-project/issues/44842
|
||||
CC_AUTO_VAR_INIT_ZERO_ENABLER := -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang
|
||||
export CC_AUTO_VAR_INIT_ZERO_ENABLER
|
||||
KBUILD_CFLAGS += $(CC_AUTO_VAR_INIT_ZERO_ENABLER)
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||||
KBUILD_CFLAGS += -enable-trivial-auto-var-init-zero-knowing-it-will-be-removed-from-clang
|
||||
endif
|
||||
endif
|
||||
|
||||
@@ -925,9 +961,7 @@ ifdef CONFIG_FTRACE_MCOUNT_USE_CC
|
||||
endif
|
||||
endif
|
||||
ifdef CONFIG_FTRACE_MCOUNT_USE_OBJTOOL
|
||||
ifdef CONFIG_HAVE_OBJTOOL_NOP_MCOUNT
|
||||
CC_FLAGS_USING += -DCC_USING_NOP_MCOUNT
|
||||
endif
|
||||
CC_FLAGS_USING += -DCC_USING_NOP_MCOUNT
|
||||
endif
|
||||
ifdef CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT
|
||||
ifdef CONFIG_HAVE_C_RECORDMCOUNT
|
||||
@@ -963,7 +997,6 @@ ifdef CONFIG_SHADOW_CALL_STACK
|
||||
ifndef CONFIG_DYNAMIC_SCS
|
||||
CC_FLAGS_SCS := -fsanitize=shadow-call-stack
|
||||
KBUILD_CFLAGS += $(CC_FLAGS_SCS)
|
||||
KBUILD_RUSTFLAGS += -Zsanitizer=shadow-call-stack
|
||||
endif
|
||||
export CC_FLAGS_SCS
|
||||
endif
|
||||
@@ -989,7 +1022,7 @@ KBUILD_LDFLAGS += -mllvm -import-instr-limit=5
|
||||
# Check for frame size exceeding threshold during prolog/epilog insertion
|
||||
# when using lld < 13.0.0.
|
||||
ifneq ($(CONFIG_FRAME_WARN),0)
|
||||
ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 130000),y)
|
||||
ifeq ($(shell test $(CONFIG_LLD_VERSION) -lt 130000; echo $$?),0)
|
||||
KBUILD_LDFLAGS += -plugin-opt=-warn-stack-size=$(CONFIG_FRAME_WARN)
|
||||
endif
|
||||
endif
|
||||
@@ -1002,35 +1035,59 @@ export CC_FLAGS_LTO
|
||||
endif
|
||||
|
||||
ifdef CONFIG_CFI_CLANG
|
||||
CC_FLAGS_CFI := -fsanitize=kcfi
|
||||
ifdef CONFIG_RUST
|
||||
# If Rust is enabled, this flag is required to support cross-language
|
||||
# integer types.
|
||||
# This addresses the problem that on e.g. i686, int != long, and Rust
|
||||
# maps both to i32.
|
||||
# See https://rcvalle.com/docs/rust-cfi-design-doc.pdf for details.
|
||||
$(error "Enabling Rust and CFI silently changes the KMI.")
|
||||
CC_FLAGS_CFI += -fsanitize-cfi-icall-experimental-normalize-integers
|
||||
RS_FLAGS_CFI := -Zsanitizer=kcfi -Zsanitizer-cfi-normalize-integers
|
||||
KBUILD_RUSTFLAGS += $(RS_FLAGS_CFI)
|
||||
export RS_FLAGS_CFI
|
||||
endif
|
||||
KBUILD_CFLAGS += $(CC_FLAGS_CFI)
|
||||
CC_FLAGS_CFI := -fsanitize=kcfi
|
||||
KBUILD_CFLAGS += $(CC_FLAGS_CFI)
|
||||
export CC_FLAGS_CFI
|
||||
endif
|
||||
|
||||
ifneq ($(CONFIG_FUNCTION_ALIGNMENT),0)
|
||||
KBUILD_CFLAGS += -falign-functions=$(CONFIG_FUNCTION_ALIGNMENT)
|
||||
ifdef CONFIG_DEBUG_FORCE_FUNCTION_ALIGN_64B
|
||||
KBUILD_CFLAGS += -falign-functions=64
|
||||
endif
|
||||
|
||||
# arch Makefile may override CC so keep this after arch Makefile is included
|
||||
NOSTDINC_FLAGS += -nostdinc
|
||||
|
||||
# To gain proper coverage for CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE,
|
||||
# the kernel uses only C99 flexible arrays for dynamically sized trailing
|
||||
# arrays. Enforce this for everything that may examine structure sizes and
|
||||
# perform bounds checking.
|
||||
KBUILD_CFLAGS += $(call cc-option, -fstrict-flex-arrays=3)
|
||||
# warn about C99 declaration after statement
|
||||
KBUILD_CFLAGS += -Wdeclaration-after-statement
|
||||
|
||||
# Variable Length Arrays (VLAs) should not be used anywhere in the kernel
|
||||
KBUILD_CFLAGS += -Wvla
|
||||
|
||||
# disable pointer signed / unsigned warnings in gcc 4.0
|
||||
KBUILD_CFLAGS += -Wno-pointer-sign
|
||||
|
||||
# In order to make sure new function cast mismatches are not introduced
|
||||
# in the kernel (to avoid tripping CFI checking), the kernel should be
|
||||
# globally built with -Wcast-function-type.
|
||||
KBUILD_CFLAGS += $(call cc-option, -Wcast-function-type)
|
||||
|
||||
# disable stringop warnings in gcc 8+
|
||||
KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
|
||||
|
||||
# We'll want to enable this eventually, but it's not going away for 5.7 at least
|
||||
KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
|
||||
|
||||
# Another good warning that we'll want to enable eventually
|
||||
KBUILD_CFLAGS += $(call cc-disable-warning, restrict)
|
||||
|
||||
# Enabled with W=2, disabled by default as noisy
|
||||
ifdef CONFIG_CC_IS_GCC
|
||||
KBUILD_CFLAGS += -Wno-maybe-uninitialized
|
||||
endif
|
||||
|
||||
# The allocators already balk at large sizes, so silence the compiler
|
||||
# warnings for bounds checks involving those possible values. While
|
||||
# -Wno-alloc-size-larger-than would normally be used here, earlier versions
|
||||
# of gcc (<9.1) weirdly don't handle the option correctly when _other_
|
||||
# warnings are produced (?!). Using -Walloc-size-larger-than=SIZE_MAX
|
||||
# doesn't work (as it is documented to), silently resolving to "0" prior to
|
||||
# version 9.1 (and producing an error more recently). Numeric values larger
|
||||
# than PTRDIFF_MAX also don't work prior to version 9.1, which are silently
|
||||
# ignored, continuing to default to PTRDIFF_MAX. So, left with no other
|
||||
# choice, we must perform a versioned check to disable this warning.
|
||||
# https://lore.kernel.org/lkml/20210824115859.187f272f@canb.auug.org.au
|
||||
KBUILD_CFLAGS-$(call gcc-min-version, 90100) += -Wno-alloc-size-larger-than
|
||||
KBUILD_CFLAGS += $(KBUILD_CFLAGS-y) $(CONFIG_CC_IMPLICIT_FALLTHROUGH)
|
||||
|
||||
# disable invalid "can't wrap" optimizations for signed / pointers
|
||||
KBUILD_CFLAGS += -fno-strict-overflow
|
||||
@@ -1043,6 +1100,15 @@ ifdef CONFIG_CC_IS_GCC
|
||||
KBUILD_CFLAGS += -fconserve-stack
|
||||
endif
|
||||
|
||||
# Prohibit date/time macros, which would make the build non-deterministic
|
||||
KBUILD_CFLAGS += -Werror=date-time
|
||||
|
||||
# enforce correct pointer usage
|
||||
KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types)
|
||||
|
||||
# Require designated initializers for all marked structures
|
||||
KBUILD_CFLAGS += $(call cc-option,-Werror=designated-init)
|
||||
|
||||
# change __FILE__ to the relative path from the srctree
|
||||
KBUILD_CPPFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
|
||||
|
||||
@@ -1082,14 +1148,13 @@ LDFLAGS_vmlinux += -X
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_RELR),y)
|
||||
# ld.lld before 15 did not support -z pack-relative-relocs.
|
||||
LDFLAGS_vmlinux += $(call ld-option,--pack-dyn-relocs=relr,-z pack-relative-relocs)
|
||||
LDFLAGS_vmlinux += --pack-dyn-relocs=relr --use-android-relr-tags
|
||||
endif
|
||||
|
||||
# We never want expected sections to be placed heuristically by the
|
||||
# linker. All sections should be explicitly named in the linker script.
|
||||
ifdef CONFIG_LD_ORPHAN_WARN
|
||||
LDFLAGS_vmlinux += --orphan-handling=$(CONFIG_LD_ORPHAN_WARN_LEVEL)
|
||||
LDFLAGS_vmlinux += --orphan-handling=warn
|
||||
endif
|
||||
|
||||
# Align the bit size of userspace programs with the kernel
|
||||
@@ -1144,6 +1209,10 @@ export MODULES_NSDEPS := $(extmod_prefix)modules.nsdeps
|
||||
|
||||
PHONY += headers
|
||||
|
||||
ext-mod-dir := ../sm8650-modules
|
||||
ext-mod-dirs := $(ext-mod-dir)/qcom/opensource/audio-kernel $(ext-mod-dir)/qcom/opensource/dataipa/drivers/platform/msm $(ext-mod-dir)/qcom/opensource/display-drivers $(ext-mod-dir)/qcom/opensource/video-kernel $(ext-mod-dir)/nxp/opensource/driver
|
||||
ext-mod-dirs := $(subst $(srctree)/,,$(ext-mod-dirs))
|
||||
|
||||
#Default location for installed headers
|
||||
ifeq ($(KBUILD_EXTMOD),)
|
||||
PHONY += archheaders archscripts
|
||||
@@ -1172,6 +1241,9 @@ ifeq ($(KBUILD_EXTMOD),)
|
||||
endif
|
||||
$(Q)$(MAKE) $(hdr-inst)=$(hdr-prefix)include/uapi
|
||||
$(Q)$(MAKE) $(hdr-inst)=$(hdr-prefix)arch/$(SRCARCH)/include/uapi
|
||||
$(Q)for d in $(ext-mod-dirs); do \
|
||||
$(MAKE) $(hdr-inst)=$$d/include/uapi; \
|
||||
done
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# Devicetree files
|
||||
@@ -1251,12 +1323,28 @@ endif
|
||||
export KBUILD_VMLINUX_LIBS
|
||||
export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
|
||||
|
||||
# Recurse until adjust_autoksyms.sh is satisfied
|
||||
PHONY += autoksyms_recursive
|
||||
ifdef CONFIG_TRIM_UNUSED_KSYMS
|
||||
# For the kernel to actually contain only the needed exported symbols,
|
||||
# we have to build modules as well to determine what those symbols are.
|
||||
# (this can be evaluated only once include/config/auto.conf has been included)
|
||||
KBUILD_MODULES := 1
|
||||
|
||||
autoksyms_recursive: $(build-dir) modules.order
|
||||
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
|
||||
"$(MAKE) -f $(srctree)/Makefile autoksyms_recursive"
|
||||
endif
|
||||
|
||||
autoksyms_h := $(if $(CONFIG_TRIM_UNUSED_KSYMS), include/generated/autoksyms.h)
|
||||
|
||||
quiet_cmd_autoksyms_h = GEN $@
|
||||
cmd_autoksyms_h = mkdir -p $(dir $@); \
|
||||
$(CONFIG_SHELL) $(srctree)/scripts/gen_autoksyms.sh $@
|
||||
|
||||
$(autoksyms_h):
|
||||
$(call cmd,autoksyms_h)
|
||||
|
||||
# '$(AR) mPi' needs 'T' to workaround the bug of llvm-ar <= 14
|
||||
quiet_cmd_ar_vmlinux.a = AR $@
|
||||
cmd_ar_vmlinux.a = \
|
||||
@@ -1265,7 +1353,7 @@ quiet_cmd_ar_vmlinux.a = AR $@
|
||||
$(AR) mPiT $$($(AR) t $@ | sed -n 1p) $@ $$($(AR) t $@ | grep -F -f $(srctree)/scripts/head-object-list.txt)
|
||||
|
||||
targets += vmlinux.a
|
||||
vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt FORCE
|
||||
vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE
|
||||
$(call if_changed,ar_vmlinux.a)
|
||||
|
||||
ifndef KBUILD_MIXED_TREE
|
||||
@@ -1297,13 +1385,9 @@ endif
|
||||
# make sure no implicit rule kicks in
|
||||
$(sort $(KBUILD_LDS) $(KBUILD_VMLINUX_OBJS) $(KBUILD_VMLINUX_LIBS)): . ;
|
||||
|
||||
-include $(srctree)/scripts/sec_env.mk
|
||||
|
||||
ifeq ($(origin KERNELRELEASE),file)
|
||||
filechk_kernel.release = $(srctree)/scripts/setlocalversion $(srctree)
|
||||
else
|
||||
filechk_kernel.release = echo $(KERNELRELEASE)
|
||||
endif
|
||||
filechk_kernel.release = \
|
||||
echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion \
|
||||
$(srctree) $(BRANCH) $(KMI_GENERATION))"
|
||||
|
||||
# Store (new) KERNELRELEASE string in include/config/kernel.release
|
||||
include/config/kernel.release: FORCE
|
||||
@@ -1325,7 +1409,7 @@ scripts: scripts_basic scripts_dtc
|
||||
PHONY += prepare archprepare
|
||||
|
||||
archprepare: outputmakefile archheaders archscripts scripts include/config/kernel.release \
|
||||
asm-generic $(version_h) include/generated/utsrelease.h \
|
||||
asm-generic $(version_h) $(autoksyms_h) include/generated/utsrelease.h \
|
||||
include/generated/compile.h include/generated/autoconf.h remove-stale-files
|
||||
|
||||
prepare0: archprepare
|
||||
@@ -1504,10 +1588,7 @@ dtbs_prepare: include/config/kernel.release scripts_dtc
|
||||
|
||||
ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),)
|
||||
export CHECK_DTBS=y
|
||||
endif
|
||||
|
||||
ifneq ($(CHECK_DTBS),)
|
||||
dtbs_prepare: dt_binding_check
|
||||
dtbs: dt_binding_check
|
||||
endif
|
||||
|
||||
dtbs_check: dtbs
|
||||
@@ -1556,7 +1637,7 @@ endif
|
||||
# Build modules
|
||||
#
|
||||
|
||||
# *.ko are usually independent of vmlinux, but CONFIG_DEBUG_INFO_BTF_MODULES
|
||||
# *.ko are usually independent of vmlinux, but CONFIG_DEBUG_INFOBTF_MODULES
|
||||
# is an exception.
|
||||
ifdef CONFIG_DEBUG_INFO_BTF_MODULES
|
||||
KBUILD_BUILTIN := 1
|
||||
@@ -1569,6 +1650,40 @@ modules: modules_prepare
|
||||
modules_prepare: prepare
|
||||
$(Q)$(MAKE) $(build)=scripts scripts/module.lds
|
||||
|
||||
export modules_sign_only :=
|
||||
|
||||
ifeq ($(CONFIG_MODULE_SIG),y)
|
||||
PHONY += modules_sign
|
||||
modules_sign: modules_install
|
||||
@:
|
||||
|
||||
# modules_sign is a subset of modules_install.
|
||||
# 'make modules_install modules_sign' is equivalent to 'make modules_install'.
|
||||
ifeq ($(filter modules_install,$(MAKECMDGOALS)),)
|
||||
modules_sign_only := y
|
||||
endif
|
||||
endif
|
||||
|
||||
modinst_pre :=
|
||||
ifneq ($(filter modules_install,$(MAKECMDGOALS)),)
|
||||
modinst_pre := __modinst_pre
|
||||
endif
|
||||
|
||||
modules_install: $(modinst_pre)
|
||||
PHONY += __modinst_pre
|
||||
__modinst_pre:
|
||||
@rm -rf $(MODLIB)/kernel
|
||||
@rm -f $(MODLIB)/source
|
||||
@mkdir -p $(MODLIB)/kernel
|
||||
@ln -s $(abspath $(srctree)) $(MODLIB)/source
|
||||
@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
|
||||
rm -f $(MODLIB)/build ; \
|
||||
ln -s $(CURDIR) $(MODLIB)/build ; \
|
||||
fi
|
||||
@sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order
|
||||
@cp -f $(mixed-build-prefix)modules.builtin $(MODLIB)/
|
||||
@cp -f $(or $(mixed-build-prefix),$(objtree)/)modules.builtin.modinfo $(MODLIB)/
|
||||
|
||||
endif # CONFIG_MODULES
|
||||
|
||||
###
|
||||
@@ -1579,10 +1694,10 @@ endif # CONFIG_MODULES
|
||||
# make distclean Remove editor backup files, patch leftover files and the like
|
||||
|
||||
# Directories & files removed with 'make clean'
|
||||
CLEAN_FILES += vmlinux.symvers modules-only.symvers \
|
||||
CLEAN_FILES += include/ksym vmlinux.symvers modules-only.symvers \
|
||||
modules.builtin modules.builtin.modinfo modules.nsdeps \
|
||||
compile_commands.json .thinlto-cache rust/test \
|
||||
rust-project.json .vmlinux.objs .vmlinux.export.c
|
||||
compile_commands.json .thinlto-cache rust/test rust/doc \
|
||||
.vmlinux.objs .vmlinux.export.c
|
||||
|
||||
# Directories & files removed with 'make mrproper'
|
||||
MRPROPER_FILES += include/config include/generated \
|
||||
@@ -1593,8 +1708,8 @@ MRPROPER_FILES += include/config include/generated \
|
||||
certs/signing_key.pem \
|
||||
certs/x509.genkey \
|
||||
vmlinux-gdb.py \
|
||||
kernel.spec rpmbuild \
|
||||
rust/libmacros.so
|
||||
*.spec \
|
||||
rust/target.json rust/libmacros.so
|
||||
|
||||
# clean - Delete most, but leave enough to build external modules
|
||||
#
|
||||
@@ -1606,9 +1721,6 @@ vmlinuxclean:
|
||||
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
|
||||
$(Q)$(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) clean)
|
||||
|
||||
legoclean:
|
||||
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/lego/kclean.sh $(srctree)/.legofile
|
||||
|
||||
clean: archclean vmlinuxclean resolve_btfids_clean
|
||||
|
||||
# mrproper - Delete all generated files, including .config
|
||||
@@ -1663,6 +1775,7 @@ help:
|
||||
@echo ' mrproper - Remove all generated files + config + various backup files'
|
||||
@echo ' distclean - mrproper + remove editor backup and patch files'
|
||||
@echo ''
|
||||
@echo 'Configuration targets:'
|
||||
@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
|
||||
@echo ''
|
||||
@echo 'Other generic targets:'
|
||||
@@ -1761,9 +1874,8 @@ help:
|
||||
printf " %-16s - Show all of the above\\n" help-boards; \
|
||||
echo '')
|
||||
|
||||
@echo ' make V=n [targets] 1: verbose build'
|
||||
@echo ' 2: give reason for rebuild of target'
|
||||
@echo ' V=1 and V=2 can be combined with V=12'
|
||||
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
|
||||
@echo ' make V=2 [targets] 2 => give reason for rebuild of target'
|
||||
@echo ' make O=dir [targets] Locate all output files in "dir", including .config'
|
||||
@echo ' make C=1 [targets] Check re-compiled c source with $$CHECK'
|
||||
@echo ' (sparse by default)'
|
||||
@@ -1775,10 +1887,6 @@ help:
|
||||
@echo ' 3: more obscure warnings, can most likely be ignored'
|
||||
@echo ' e: warnings are being treated as errors'
|
||||
@echo ' Multiple levels can be combined with W=12 or W=123'
|
||||
@$(if $(dtstree), \
|
||||
echo ' make CHECK_DTBS=1 [targets] Check all generated dtb files against schema'; \
|
||||
echo ' This can be applied both to "dtbs" and to individual "foo.dtb" targets' ; \
|
||||
)
|
||||
@echo ''
|
||||
@echo 'Execute "make" or "make all" to build all targets marked with [*] '
|
||||
@echo 'For further info see the ./README file'
|
||||
@@ -1801,7 +1909,7 @@ $(help-board-dirs): help-%:
|
||||
# Documentation targets
|
||||
# ---------------------------------------------------------------------------
|
||||
DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
|
||||
linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
|
||||
linkcheckdocs dochelp refcheckdocs
|
||||
PHONY += $(DOC_TARGETS)
|
||||
$(DOC_TARGETS):
|
||||
$(Q)$(MAKE) $(build)=Documentation $@
|
||||
@@ -1847,15 +1955,14 @@ rustfmt:
|
||||
rustfmtcheck: rustfmt_flags = --check
|
||||
rustfmtcheck: rustfmt
|
||||
|
||||
# IDE support targets
|
||||
PHONY += rust-analyzer
|
||||
rust-analyzer:
|
||||
$(Q)$(MAKE) $(build)=rust $@
|
||||
|
||||
# Misc
|
||||
# ---------------------------------------------------------------------------
|
||||
|
||||
PHONY += misc-check
|
||||
misc-check:
|
||||
$(Q)$(srctree)/scripts/misc-check
|
||||
|
||||
all: misc-check
|
||||
|
||||
PHONY += scripts_gdb
|
||||
scripts_gdb: prepare0
|
||||
$(Q)$(MAKE) $(build)=scripts/gdb
|
||||
@@ -1867,8 +1974,6 @@ endif
|
||||
|
||||
else # KBUILD_EXTMOD
|
||||
|
||||
filechk_kernel.release = echo $(KERNELRELEASE)
|
||||
|
||||
###
|
||||
# External module support.
|
||||
# When building external modules the kernel used as basis is considered
|
||||
@@ -1909,42 +2014,14 @@ help:
|
||||
@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'
|
||||
@echo ' (default: $(abspath $(INSTALL_HDR_PATH)))'
|
||||
@echo ' clean - remove generated files in module directory only'
|
||||
@echo ' rust-analyzer - generate rust-project.json rust-analyzer support file'
|
||||
@echo ''
|
||||
|
||||
ifndef CONFIG_MODULES
|
||||
modules modules_install: __external_modules_error
|
||||
__external_modules_error:
|
||||
@echo >&2 '***'
|
||||
@echo >&2 '*** The present kernel disabled CONFIG_MODULES.'
|
||||
@echo >&2 '*** You cannot build or install external modules.'
|
||||
@echo >&2 '***'
|
||||
@false
|
||||
endif
|
||||
|
||||
endif # KBUILD_EXTMOD
|
||||
|
||||
# ---------------------------------------------------------------------------
|
||||
# Modules
|
||||
|
||||
PHONY += modules modules_install modules_sign modules_prepare
|
||||
|
||||
modules_install:
|
||||
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst \
|
||||
sign-only=$(if $(filter modules_install,$(MAKECMDGOALS)),,y)
|
||||
|
||||
ifeq ($(CONFIG_MODULE_SIG),y)
|
||||
# modules_sign is a subset of modules_install.
|
||||
# 'make modules_install modules_sign' is equivalent to 'make modules_install'.
|
||||
modules_sign: modules_install
|
||||
@:
|
||||
else
|
||||
modules_sign:
|
||||
@echo >&2 '***'
|
||||
@echo >&2 '*** CONFIG_MODULE_SIG is disabled. You cannot sign modules.'
|
||||
@echo >&2 '***'
|
||||
@false
|
||||
endif
|
||||
PHONY += modules modules_install modules_prepare
|
||||
|
||||
ifdef CONFIG_MODULES
|
||||
|
||||
@@ -1962,10 +2039,28 @@ PHONY += modules_check
|
||||
modules_check: $(MODORDER)
|
||||
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/modules-check.sh $<
|
||||
|
||||
quiet_cmd_depmod = DEPMOD $(MODLIB)
|
||||
cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
|
||||
$(KERNELRELEASE) $(mixed-build-prefix)
|
||||
|
||||
modules_install:
|
||||
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
|
||||
ifndef modules_sign_only
|
||||
$(call cmd,depmod)
|
||||
endif
|
||||
|
||||
else # CONFIG_MODULES
|
||||
|
||||
modules:
|
||||
@:
|
||||
# Modules not configured
|
||||
# ---------------------------------------------------------------------------
|
||||
|
||||
modules modules_install:
|
||||
@echo >&2 '***'
|
||||
@echo >&2 '*** The present kernel configuration has modules disabled.'
|
||||
@echo >&2 '*** To use the module feature, please run "make menuconfig" etc.'
|
||||
@echo >&2 '*** to enable CONFIG_MODULES.'
|
||||
@echo >&2 '***'
|
||||
@exit 1
|
||||
|
||||
KBUILD_MODULES :=
|
||||
|
||||
@@ -2003,7 +2098,7 @@ $(single-no-ko): $(build-dir)
|
||||
# Remove MODORDER when done because it is not the real one.
|
||||
PHONY += single_modules
|
||||
single_modules: $(single-no-ko) modules_prepare
|
||||
$(Q){ $(foreach m, $(single-ko), echo $(extmod_prefix)$(m:%.ko=%.o);) } > $(MODORDER)
|
||||
$(Q){ $(foreach m, $(single-ko), echo $(extmod_prefix)$m;) } > $(MODORDER)
|
||||
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
|
||||
ifneq ($(KBUILD_MODPOST_NOFINAL),1)
|
||||
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modfinal
|
||||
@@ -2036,21 +2131,18 @@ clean: $(clean-dirs)
|
||||
$(RCS_FIND_IGNORE) \
|
||||
\( -name '*.[aios]' -o -name '*.rsi' -o -name '*.ko' -o -name '.*.cmd' \
|
||||
-o -name '*.ko.*' \
|
||||
-o -name '*.dtb' -o -name '*.dtbo' \
|
||||
-o -name '*.dtb.S' -o -name '*.dtbo.S' \
|
||||
-o -name '*.dt.yaml' \
|
||||
-o -name '*.dtb' -o -name '*.dtbo' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
|
||||
-o -name '*.dwo' -o -name '*.lst' \
|
||||
-o -name '*.su' -o -name '*.mod' \
|
||||
-o -name '*.su' -o -name '*.mod' -o -name '*.usyms' \
|
||||
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
|
||||
-o -name '*.lex.c' -o -name '*.tab.[ch]' \
|
||||
-o -name '*.asn1.[ch]' \
|
||||
-o -name '*.symtypes' -o -name 'modules.order' \
|
||||
-o -name '.tmp_*' \
|
||||
-o -name '*.c.[012]*.*' \
|
||||
-o -name '*.ll' \
|
||||
-o -name '*.gcno' \
|
||||
-o -name '*.*.symversions' \) -type f -print \
|
||||
-o -name '.tmp_*' -print \
|
||||
| xargs rm -rf
|
||||
-o -name '*.*.symversions' \) -type f -print | xargs rm -f
|
||||
|
||||
# Generate tags for editors
|
||||
# ---------------------------------------------------------------------------
|
||||
@@ -2060,11 +2152,6 @@ quiet_cmd_tags = GEN $@
|
||||
tags TAGS cscope gtags: FORCE
|
||||
$(call cmd,tags)
|
||||
|
||||
# IDE support targets
|
||||
PHONY += rust-analyzer
|
||||
rust-analyzer:
|
||||
$(Q)$(MAKE) $(build)=rust $@
|
||||
|
||||
# Script to generate missing namespace dependencies
|
||||
# ---------------------------------------------------------------------------
|
||||
|
||||
@@ -2137,7 +2224,8 @@ checkstack:
|
||||
$(PERL) $(srctree)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
|
||||
|
||||
kernelrelease:
|
||||
@$(filechk_kernel.release)
|
||||
@echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion \
|
||||
$(srctree) $(BRANCH) $(KMI_GENERATION))"
|
||||
|
||||
kernelversion:
|
||||
@echo $(KERNELVERSION)
|
||||
@@ -2145,10 +2233,6 @@ kernelversion:
|
||||
image_name:
|
||||
@echo $(KBUILD_IMAGE)
|
||||
|
||||
PHONY += run-command
|
||||
run-command:
|
||||
$(Q)$(KBUILD_RUN_COMMAND)
|
||||
|
||||
quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
|
||||
cmd_rmfiles = rm -rf $(rm-files)
|
||||
|
||||
|
||||
Reference in New Issue
Block a user