FM / scripts

/usr/src/linux-headers-5.15.0-190/scripts/

/usr/src/linux-headers-5.15.0-190/scripts

Name	Size	Mode	Actions
atomic/	-	0755	rm
basic/	-	0755	rm
clang-tools/	-	0755	rm
coccinelle/	-	0755	rm
dtc/	-	0755	rm
dummy-tools/	-	0755	rm
gcc-plugins/	-	0755	rm
gdb/	-	0755	rm
genksyms/	-	0755	rm
kconfig/	-	0755	rm
ksymoops/	-	0755	rm
mod/	-	0755	rm
package/	-	0755	rm
selinux/	-	0755	rm
tracing/	-	0755	rm
.gitignore	160	0644	edit dl rm
adjust_autoksyms.sh	2122	0755	edit dl rm
as-version.sh	2081	0755	edit dl rm
asn1_compiler.c	36180	0644	edit dl rm
bin2c.c	743	0644	edit dl rm
bloat-o-meter	3445	0755	edit dl rm
bootgraph.pl	5780	0755	edit dl rm
bpf_doc.py	25582	0755	edit dl rm
cc-can-link.sh	166	0755	edit dl rm
cc-version.sh	1549	0755	edit dl rm
check-sysctl-docs	4472	0755	edit dl rm
checkdeclares.pl	1123	0755	edit dl rm
checkincludes.pl	1988	0755	edit dl rm
checkkconfigsymbols.py	16126	0755	edit dl rm
checkpatch.pl	229426	0755	edit dl rm
checkstack.pl	6001	0755	edit dl rm
checksyscalls.sh	7600	0755	edit dl rm
checkversion.pl	2211	0755	edit dl rm
check_extable.sh	5048	0755	edit dl rm
cleanfile	3542	0755	edit dl rm
cleanpatch	5182	0755	edit dl rm
coccicheck	8075	0755	edit dl rm
config	4899	0755	edit dl rm
const_structs.checkpatch	1009	0644	edit dl rm
decodecode	2952	0755	edit dl rm
decode_stacktrace.sh	7691	0755	edit dl rm
depmod.sh	1441	0755	edit dl rm
dev-needs.sh	6219	0755	edit dl rm
diffconfig	4222	0755	edit dl rm
documentation-file-ref-check	5687	0755	edit dl rm
export_report.pl	4605	0755	edit dl rm
extract-cert.c	3720	0644	edit dl rm
extract-ikconfig	1734	0755	edit dl rm
extract-module-sig.pl	3746	0755	edit dl rm
extract-sys-certs.pl	3836	0755	edit dl rm
extract-vmlinux	1695	0755	edit dl rm
extract_xc3028.pl	45686	0755	edit dl rm
faddr2line	8364	0755	edit dl rm
file-size.sh	86	0755	edit dl rm
find-unused-docs.sh	1304	0755	edit dl rm
gcc-goto.sh	511	0755	edit dl rm
gcc-ld	711	0755	edit dl rm
gcc-x86_32-has-stack-protector.sh	405	0755	edit dl rm
gcc-x86_64-has-stack-protector.sh	195	0755	edit dl rm
generate_initcall_order.pl	6090	0755	edit dl rm
gen_autoksyms.sh	1509	0755	edit dl rm
gen_ksymdeps.sh	556	0755	edit dl rm
get_abi.pl	15463	0755	edit dl rm
get_dvb_firmware	25128	0755	edit dl rm
get_feat.pl	14689	0755	edit dl rm
get_maintainer.pl	68744	0755	edit dl rm
gfp-translate	1732	0755	edit dl rm
headerdep.pl	3587	0755	edit dl rm
headers_check.pl	3819	0755	edit dl rm
headers_install.sh	3431	0755	edit dl rm
insert-sys-cert.c	13392	0644	edit dl rm
jobserver-exec	2213	0755	edit dl rm
kallsyms.c	18498	0644	edit dl rm
Kbuild.include	10392	0644	edit dl rm
Kconfig.include	2635	0644	edit dl rm
kernel-doc	70388	0755	edit dl rm
ld-version.sh	1864	0755	edit dl rm
leaking_addresses.pl	13112	0755	edit dl rm
Lindent	502	0755	edit dl rm
link-vmlinux.sh	11181	0755	edit dl rm
Makefile	1681	0644	edit dl rm
Makefile.asm-generic	1864	0644	edit dl rm
Makefile.build	20135	0644	edit dl rm
Makefile.clang	1602	0644	edit dl rm
Makefile.clean	2254	0644	edit dl rm
Makefile.compiler	2806	0644	edit dl rm
Makefile.dtbinst	1007	0644	edit dl rm
Makefile.extrawarn	3092	0644	edit dl rm
Makefile.gcc-plugins	2778	0644	edit dl rm
Makefile.headersinst	2950	0644	edit dl rm
Makefile.host	4743	0644	edit dl rm
Makefile.kasan	1715	0644	edit dl rm
Makefile.kcov	333	0644	edit dl rm
Makefile.kcsan	739	0644	edit dl rm
Makefile.lib	18455	0644	edit dl rm
Makefile.modfinal	2793	0644	edit dl rm
Makefile.modinst	2581	0644	edit dl rm
Makefile.modpost	4478	0644	edit dl rm
Makefile.package	6771	0644	edit dl rm
Makefile.ubsan	770	0644	edit dl rm
Makefile.userprogs	1607	0644	edit dl rm
makelst	808	0755	edit dl rm
markup_oops.pl	8110	0755	edit dl rm
min-tool-version.sh	558	0755	edit dl rm
mkcompile_h	2541	0755	edit dl rm
mksysmap	1369	0755	edit dl rm
mkuboot.sh	414	0755	edit dl rm
module.lds.S	1691	0644	edit dl rm
modules-check.sh	427	0755	edit dl rm
nsdeps	1765	0644	edit dl rm
objdiff	2905	0755	edit dl rm
pahole-flags.sh	749	0755	edit dl rm
pahole-version.sh	269	0755	edit dl rm
parse-maintainers.pl	4646	0755	edit dl rm
patch-kernel	10185	0755	edit dl rm
profile2linkerlist.pl	414	0755	edit dl rm
prune-kernel	708	0755	edit dl rm
recordmcount.c	17152	0644	edit dl rm
recordmcount.h	19832	0644	edit dl rm
recordmcount.pl	18049	0755	edit dl rm
remove-stale-files	1336	0755	edit dl rm
setlocalversion	3580	0755	edit dl rm
show_delta	3087	0755	edit dl rm
sign-file.c	10172	0644	edit dl rm
sorttable.c	8949	0644	edit dl rm
sorttable.h	10063	0644	edit dl rm
spdxcheck-test.sh	277	0644	edit dl rm
spdxcheck.py	10334	0755	edit dl rm
spelling.txt	32646	0644	edit dl rm
sphinx-pre-install	25035	0755	edit dl rm
split-man.pl	604	0755	edit dl rm
stackdelta	1887	0755	edit dl rm
stackusage	794	0755	edit dl rm
subarch.include	619	0644	edit dl rm
syscallhdr.sh	1935	0755	edit dl rm
syscallnr.sh	1485	0755	edit dl rm
syscalltbl.sh	1489	0755	edit dl rm
tags.sh	10110	0755	edit dl rm
tools-support-relr.sh	546	0755	edit dl rm
ubuntu-retpoline-extract-one	7434	0644	edit dl rm
unifdef.c	35637	0644	edit dl rm
ver_linux	2648	0755	edit dl rm
xen-hypercalls.sh	386	0755	edit dl rm
xz_wrap.sh	563	0755	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/scripts/Makefile.build (20135B)

# SPDX-License-Identifier: GPL-2.0
# ==========================================================================
# Building
# ==========================================================================

src := $(obj)

PHONY := __build
__build:

# Init all relevant variables used in kbuild files so
# 1) they have correct type
# 2) they do not inherit any value from the environment
obj-y :=
obj-m :=
lib-y :=
lib-m :=
always-y :=
always-m :=
targets :=
subdir-y :=
subdir-m :=
EXTRA_AFLAGS   :=
EXTRA_CFLAGS   :=
EXTRA_CPPFLAGS :=
EXTRA_LDFLAGS  :=
asflags-y  :=
ccflags-y  :=
cppflags-y :=
ldflags-y  :=

subdir-asflags-y :=
subdir-ccflags-y :=

# Read auto.conf if it exists, otherwise ignore
-include include/config/auto.conf

include $(srctree)/scripts/Kbuild.include
include $(srctree)/scripts/Makefile.compiler

# The filename Kbuild has precedence over Makefile
kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
include $(kbuild-file)

include $(srctree)/scripts/Makefile.lib

# Do not include hostprogs rules unless needed.
# $(sort ...) is used here to remove duplicated words and excessive spaces.
hostprogs := $(sort $(hostprogs))
ifneq ($(hostprogs),)
include $(srctree)/scripts/Makefile.host
endif

# Do not include userprogs rules unless needed.
# $(sort ...) is used here to remove duplicated words and excessive spaces.
userprogs := $(sort $(userprogs))
ifneq ($(userprogs),)
include $(srctree)/scripts/Makefile.userprogs
endif

ifndef obj
$(warning kbuild: Makefile.build is included improperly)
endif

ifeq ($(need-modorder),)
ifneq ($(obj-m),)
$(warning $(patsubst %.o,'%.ko',$(obj-m)) will not be built even though obj-m is specified.)
$(warning You cannot use subdir-y/m to visit a module Makefile. Use obj-y/m instead.)
endif
endif

# ===========================================================================

# subdir-builtin and subdir-modorder may contain duplications. Use $(sort ...)
subdir-builtin := $(sort $(filter %/built-in.a, $(real-obj-y)))
subdir-modorder := $(sort $(filter %/modules.order, $(obj-m)))

targets-for-builtin := $(extra-y)

ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),)
targets-for-builtin += $(obj)/lib.a
endif

ifdef need-builtin
targets-for-builtin += $(obj)/built-in.a
endif

targets-for-modules := $(patsubst %.o, %.mod, $(filter %.o, $(obj-m)))

ifdef CONFIG_LTO_CLANG
targets-for-modules += $(patsubst %.o, %.lto.o, $(filter %.o, $(obj-m)))
endif

ifdef need-modorder
targets-for-modules += $(obj)/modules.order
endif

targets += $(targets-for-builtin) $(targets-for-modules)

# Linus' kernel sanity checking tool
ifeq ($(KBUILD_CHECKSRC),1)
  quiet_cmd_checksrc       = CHECK   $<
        cmd_checksrc       = $(CHECK) $(CHECKFLAGS) $(c_flags) $<
else ifeq ($(KBUILD_CHECKSRC),2)
  quiet_cmd_force_checksrc = CHECK   $<
        cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $<
endif

ifneq ($(KBUILD_EXTRA_WARN),)
  cmd_checkdoc = $(srctree)/scripts/kernel-doc -none $<
endif

# Compile C sources (.c)
# ---------------------------------------------------------------------------

quiet_cmd_cc_s_c = CC $(quiet_modtag)  $@
      cmd_cc_s_c = $(CC) $(filter-out $(DEBUG_CFLAGS) $(CC_FLAGS_LTO), $(c_flags)) -fverbose-asm -S -o $@ $<

$(obj)/%.s: $(src)/%.c FORCE
	$(call if_changed_dep,cc_s_c)

quiet_cmd_cpp_i_c = CPP $(quiet_modtag) $@
cmd_cpp_i_c       = $(CPP) $(c_flags) -o $@ $<

$(obj)/%.i: $(src)/%.c FORCE
	$(call if_changed_dep,cpp_i_c)

# These mirror gensymtypes_S and co below, keep them in synch.
cmd_gensymtypes_c =                                                         \
    $(CPP) -D__GENKSYMS__ $(c_flags) $< |                                   \
    scripts/genksyms/genksyms $(if $(1), -T $(2))                           \
     $(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS))                             \
     $(if $(KBUILD_PRESERVE),-p)                                            \
     -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))

quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@
cmd_cc_symtypes_c =                                                         \
    $(call cmd_gensymtypes_c,true,$@) >/dev/null;                           \
    test -s $@ || rm -f $@

$(obj)/%.symtypes : $(src)/%.c FORCE
	$(call cmd,cc_symtypes_c)

# LLVM assembly
# Generate .ll files from .c
quiet_cmd_cc_ll_c = CC $(quiet_modtag)  $@
      cmd_cc_ll_c = $(CC) $(c_flags) -emit-llvm -S -o $@ $<

$(obj)/%.ll: $(src)/%.c FORCE
	$(call if_changed_dep,cc_ll_c)

# C (.c) files
# The C file is compiled and updated dependency information is generated.
# (See cmd_cc_o_c + relevant part of rule_cc_o_c)

quiet_cmd_cc_o_c = CC $(quiet_modtag)  $@
      cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<

ifdef CONFIG_MODVERSIONS
# When module versioning is enabled the following steps are executed:
# o compile a <file>.o from <file>.c
# o if <file>.o doesn't contain a __ksymtab version, i.e. does
#   not export symbols, it's done.
# o otherwise, we calculate symbol versions using the good old
#   genksyms on the preprocessed source and postprocess them in a way
#   that they are usable as a linker script
# o generate .tmp_<file>.o from <file>.o using the linker to
#   replace the unresolved symbols __crc_exported_symbol with
#   the actual value of the checksum generated by genksyms
# o remove .tmp_<file>.o to <file>.o

ifdef CONFIG_LTO_CLANG
# Generate .o.symversions files for each .o with exported symbols, and link these
# to the kernel and/or modules at the end.
cmd_modversions_c =								\
	if $(NM) $@ 2>/dev/null | grep -q __ksymtab; then			\
		$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes))	\
		    > $@.symversions;						\
	else									\
		rm -f $@.symversions;						\
	fi;
else
cmd_modversions_c =								\
	if $(OBJDUMP) -h $@ | grep -q __ksymtab; then				\
		$(call cmd_gensymtypes_c,$(KBUILD_SYMTYPES),$(@:.o=.symtypes))	\
		    > $(@D)/.tmp_$(@F:.o=.ver);					\
										\
		$(LD) $(KBUILD_LDFLAGS) -r -o $(@D)/.tmp_$(@F) $@ 		\
			-T $(@D)/.tmp_$(@F:.o=.ver);				\
		mv -f $(@D)/.tmp_$(@F) $@;					\
		rm -f $(@D)/.tmp_$(@F:.o=.ver);					\
	fi
endif
endif

ifdef CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT
# compiler will not generate __mcount_loc use recordmcount or recordmcount.pl
ifdef BUILD_C_RECORDMCOUNT
ifeq ("$(origin RECORDMCOUNT_WARN)", "command line")
  RECORDMCOUNT_FLAGS = -w
endif
# Due to recursion, we must skip empty.o.
# The empty.o file is created in the make process in order to determine
# the target endianness and word size. It is made before all other C
# files, including recordmcount.
sub_cmd_record_mcount =					\
	if [ $(@) != "scripts/mod/empty.o" ]; then	\
		$(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)";	\
	fi;
recordmcount_source := $(srctree)/scripts/recordmcount.c \
		    $(srctree)/scripts/recordmcount.h
else
sub_cmd_record_mcount = perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \
	"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
	"$(if $(CONFIG_64BIT),64,32)" \
	"$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \
	"$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \
	"$(if $(part-of-module),1,0)" "$(@)";
recordmcount_source := $(srctree)/scripts/recordmcount.pl
endif # BUILD_C_RECORDMCOUNT
cmd_record_mcount = $(if $(findstring $(strip $(CC_FLAGS_FTRACE)),$(_c_flags)),	\
	$(sub_cmd_record_mcount))
endif # CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT

ifdef CONFIG_STACK_VALIDATION

objtool_args =								\
	$(if $(CONFIG_UNWINDER_ORC),orc generate,check)			\
	$(if $(part-of-module), --module)				\
	$(if $(CONFIG_FRAME_POINTER),, --no-fp)				\
	$(if $(CONFIG_GCOV_KERNEL)$(CONFIG_LTO_CLANG), --no-unreachable)\
	$(if $(CONFIG_RETPOLINE), --retpoline)				\
	$(if $(CONFIG_RETHUNK), --rethunk)				\
	$(if $(CONFIG_X86_SMAP), --uaccess)				\
	$(if $(CONFIG_FTRACE_MCOUNT_USE_OBJTOOL), --mcount)		\
	$(if $(CONFIG_SLS), --sls)

ifndef CONFIG_LTO_CLANG

__objtool_obj := $(objtree)/tools/objtool/objtool

# 'OBJECT_FILES_NON_STANDARD := y': skip objtool checking for a directory
# 'OBJECT_FILES_NON_STANDARD_foo.o := 'y': skip objtool checking for a file
# 'OBJECT_FILES_NON_STANDARD_foo.o := 'n': override directory skip for a file
cmd_objtool = $(if $(patsubst y%,, \
	$(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
	$(__objtool_obj) $(objtool_args) $@)
objtool_obj = $(if $(patsubst y%,, \
	$(OBJECT_FILES_NON_STANDARD_$(basetarget).o)$(OBJECT_FILES_NON_STANDARD)n), \
	$(__objtool_obj))

endif # CONFIG_LTO_CLANG
endif # CONFIG_STACK_VALIDATION

# Rebuild all objects when objtool changes, or is enabled/disabled.
objtool_dep = $(objtool_obj)					\
	      $(wildcard include/config/ORC_UNWINDER		\
			 include/config/STACK_VALIDATION)

ifdef CONFIG_TRIM_UNUSED_KSYMS
cmd_gen_ksymdeps = \
	$(CONFIG_SHELL) $(srctree)/scripts/gen_ksymdeps.sh $@ >> $(dot-target).cmd

# List module undefined symbols
undefined_syms = $(NM) $< | $(AWK) '$$1 == "U" { printf("%s%s", x++ ? " " : "", $$2) }';
endif

ifdef CONFIG_RETPOLINE
cmd_ubuntu_retpoline = $(CONFIG_SHELL) $(srctree)/scripts/ubuntu-retpoline-extract-one $(@) $(<) "$(filter -m16 %code16gcc.h,$(a_flags))";
else
cmd_ubuntu_retpoline =
endif

define rule_cc_o_c
	$(call cmd_and_fixdep,cc_o_c)
	$(call cmd,gen_ksymdeps)
	$(call cmd,checksrc)
	$(call cmd,checkdoc)
	$(call cmd,objtool)
	$(call cmd,modversions_c)
	$(call cmd,ubuntu-retpoline)
	$(call cmd,record_mcount)
endef

define rule_as_o_S
	$(call cmd_and_fixdep,as_o_S)
	$(call cmd,gen_ksymdeps)
	$(call cmd,objtool)
	$(call cmd,modversions_S)
	$(call cmd,ubuntu-retpoline)
endef

# Built-in and composite module parts
.SECONDEXPANSION:
$(obj)/%.o: $(src)/%.c $(recordmcount_source) $$(objtool_dep) FORCE
	$(call if_changed_rule,cc_o_c)
	$(call cmd,force_checksrc)

ifdef CONFIG_LTO_CLANG
# Module .o files may contain LLVM bitcode, compile them into native code
# before ELF processing
quiet_cmd_cc_lto_link_modules = LTO [M] $@
cmd_cc_lto_link_modules =						\
	$(LD) $(ld_flags) -r -o $@					\
		$(shell [ -s $(@:.lto.o=.o.symversions) ] &&		\
			echo -T $(@:.lto.o=.o.symversions))		\
		--whole-archive $(filter-out FORCE,$^)

ifdef CONFIG_STACK_VALIDATION
# objtool was skipped for LLVM bitcode, run it now that we have compiled
# modules into native code
cmd_cc_lto_link_modules += ;						\
	$(objtree)/tools/objtool/objtool $(objtool_args) --module $@
endif

$(obj)/%.lto.o: $(obj)/%.o FORCE
	$(call if_changed,cc_lto_link_modules)
endif

cmd_mod = { \
	echo $(if $($*-objs)$($*-y)$($*-m), $(addprefix $(obj)/, $($*-objs) $($*-y) $($*-m)), $(@:.mod=.o)); \
	$(undefined_syms) echo; \
	} > $@

$(obj)/%.mod: $(obj)/%$(mod-prelink-ext).o FORCE
	$(call if_changed,mod)

quiet_cmd_cc_lst_c = MKLST   $@
      cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \
		     $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \
				     System.map $(OBJDUMP) > $@

$(obj)/%.lst: $(src)/%.c FORCE
	$(call if_changed_dep,cc_lst_c)

# Compile assembler sources (.S)
# ---------------------------------------------------------------------------

# .S file exports must have their C prototypes defined in asm/asm-prototypes.h
# or a file that it includes, in order to get versioned symbols. We build a
# dummy C file that includes asm-prototypes and the EXPORT_SYMBOL lines from
# the .S file (with trailing ';'), and run genksyms on that, to extract vers.
#
# This is convoluted. The .S file must first be preprocessed to run guards and
# expand names, then the resulting exports must be constructed into plain
# EXPORT_SYMBOL(symbol); to build our dummy C file, and that gets preprocessed
# to make the genksyms input.
#
# These mirror gensymtypes_c and co above, keep them in synch.
cmd_gensymtypes_S =                                                         \
   { echo "\#include <linux/kernel.h>" ;                                    \
     echo "\#include <asm/asm-prototypes.h>" ;                              \
    $(CPP) $(a_flags) $< |                                                  \
     grep "\<___EXPORT_SYMBOL\>" |                                          \
     sed 's/.*___EXPORT_SYMBOL[[:space:]]*$[a-zA-Z0-9_]*$[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ; } | \
    $(CPP) -D__GENKSYMS__ $(c_flags) -xc - |                                \
    scripts/genksyms/genksyms $(if $(1), -T $(2))                           \
     $(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS))                             \
     $(if $(KBUILD_PRESERVE),-p)                                            \
     -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null))

quiet_cmd_cc_symtypes_S = SYM $(quiet_modtag) $@
cmd_cc_symtypes_S =                                                         \
    $(call cmd_gensymtypes_S,true,$@) >/dev/null;                           \
    test -s $@ || rm -f $@

$(obj)/%.symtypes : $(src)/%.S FORCE
	$(call cmd,cc_symtypes_S)

quiet_cmd_cpp_s_S = CPP $(quiet_modtag) $@
cmd_cpp_s_S       = $(CPP) $(a_flags) -o $@ $<

$(obj)/%.s: $(src)/%.S FORCE
	$(call if_changed_dep,cpp_s_S)

quiet_cmd_as_o_S = AS $(quiet_modtag)  $@
      cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<

ifdef CONFIG_ASM_MODVERSIONS

# versioning matches the C process described above, with difference that
# we parse asm-prototypes.h C header to get function definitions.

cmd_modversions_S =								\
	if $(OBJDUMP) -h $@ | grep -q __ksymtab; then				\
		$(call cmd_gensymtypes_S,$(KBUILD_SYMTYPES),$(@:.o=.symtypes))	\
		    > $(@D)/.tmp_$(@F:.o=.ver);					\
										\
		$(LD) $(KBUILD_LDFLAGS) -r -o $(@D)/.tmp_$(@F) $@ 		\
			-T $(@D)/.tmp_$(@F:.o=.ver);				\
		mv -f $(@D)/.tmp_$(@F) $@;					\
		rm -f $(@D)/.tmp_$(@F:.o=.ver);					\
	fi
endif

$(obj)/%.o: $(src)/%.S $$(objtool_dep) FORCE
	$(call if_changed_rule,as_o_S)

targets += $(filter-out $(subdir-builtin), $(real-obj-y))
targets += $(filter-out $(subdir-modorder), $(real-obj-m))
targets += $(real-dtb-y) $(lib-y) $(always-y) $(MAKECMDGOALS)

# Linker scripts preprocessor (.lds.S -> .lds)
# ---------------------------------------------------------------------------
quiet_cmd_cpp_lds_S = LDS     $@
      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \
	                     -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<

$(obj)/%.lds: $(src)/%.lds.S FORCE
	$(call if_changed_dep,cpp_lds_S)

# ASN.1 grammar
# ---------------------------------------------------------------------------
quiet_cmd_asn1_compiler = ASN.1   $(basename $@).[ch]
      cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \
				$(basename $@).c $(basename $@).h

$(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
	$(call cmd,asn1_compiler)

# Build the compiled-in targets
# ---------------------------------------------------------------------------

# To build objects in subdirs, we need to descend into the directories
$(subdir-builtin): $(obj)/%/built-in.a: $(obj)/% ;
$(subdir-modorder): $(obj)/%/modules.order: $(obj)/% ;

# combine symversions for later processing
ifeq ($(CONFIG_LTO_CLANG) $(CONFIG_MODVERSIONS),y y)
      cmd_update_lto_symversions =					\
	rm -f $@.symversions						\
	$(foreach n, $(filter-out FORCE,$^),				\
		$(if $(shell test -s $(n).symversions && echo y),	\
			; cat $(n).symversions >> $@.symversions))
else
      cmd_update_lto_symversions = echo >/dev/null
endif

#
# Rule to compile a set of .o files into one .a file (without symbol table)
#

quiet_cmd_ar_builtin = AR      $@
      cmd_ar_builtin = rm -f $@; $(AR) cDPrST $@ $(real-prereqs)

quiet_cmd_ar_and_symver = AR      $@
      cmd_ar_and_symver = $(cmd_update_lto_symversions); $(cmd_ar_builtin)

$(obj)/built-in.a: $(real-obj-y) FORCE
	$(call if_changed,ar_and_symver)

#
# Rule to create modules.order file
#
# Create commands to either record .ko file or cat modules.order from
# a subdirectory
# Add $(obj-m) as the prerequisite to avoid updating the timestamp of
# modules.order unless contained modules are updated.

cmd_modules_order = { $(foreach m, $(real-prereqs), \
	$(if $(filter %/modules.order, $m), cat $m, echo $(patsubst %.o,%.ko,$m));) :; } \
	| $(AWK) '!x[$$0]++' - > $@

$(obj)/modules.order: $(obj-m) FORCE
	$(call if_changed,modules_order)

#
# Rule to compile a set of .o files into one .a file (with symbol table)
#
quiet_cmd_ar_lib = AR      $@
      cmd_ar_lib = $(cmd_update_lto_symversions); $(cmd_ar)

$(obj)/lib.a: $(lib-y) FORCE
	$(call if_changed,ar_lib)

# NOTE:
# Do not replace $(filter %.o,^) with $(real-prereqs). When a single object
# module is turned into a multi object module, $^ will contain header file
# dependencies recorded in the .*.cmd file.
ifdef CONFIG_LTO_CLANG
quiet_cmd_link_multi-m = AR [M]  $@
cmd_link_multi-m =						\
	$(cmd_update_lto_symversions);				\
	rm -f $@; 						\
	$(AR) cDPrsT $@ $(filter %.o,$^)
else
quiet_cmd_link_multi-m = LD [M]  $@
      cmd_link_multi-m = $(LD) $(ld_flags) -r -o $@ $(filter %.o,$^)
endif

$(multi-obj-m): FORCE
	$(call if_changed,link_multi-m)
$(call multi_depend, $(multi-obj-m), .o, -objs -y -m)

targets += $(multi-obj-m)
targets := $(filter-out $(PHONY), $(targets))

# Add intermediate targets:
# When building objects with specific suffix patterns, add intermediate
# targets that the final targets are derived from.
intermediate_targets = $(foreach sfx, $(2), \
				$(patsubst %$(strip $(1)),%$(sfx), \
					$(filter %$(strip $(1)), $(targets))))
# %.asn1.o <- %.asn1.[ch] <- %.asn1
# %.dtb.o <- %.dtb.S <- %.dtb <- %.dts
# %.lex.o <- %.lex.c <- %.l
# %.tab.o <- %.tab.[ch] <- %.y
targets += $(call intermediate_targets, .asn1.o, .asn1.c .asn1.h) \
	   $(call intermediate_targets, .dtb.o, .dtb.S .dtb) \
	   $(call intermediate_targets, .lex.o, .lex.c) \
	   $(call intermediate_targets, .tab.o, .tab.c .tab.h)

# Build
# ---------------------------------------------------------------------------

ifdef single-build

KBUILD_SINGLE_TARGETS := $(filter $(obj)/%, $(KBUILD_SINGLE_TARGETS))

curdir-single := $(sort $(foreach x, $(KBUILD_SINGLE_TARGETS), \
			$(if $(filter $(x) $(basename $(x)).o, $(targets)), $(x))))

# Handle single targets without any rule: show "Nothing to be done for ..." or
# "No rule to make target ..." depending on whether the target exists.
unknown-single := $(filter-out $(addsuffix /%, $(subdir-ym)), \
			$(filter-out $(curdir-single), $(KBUILD_SINGLE_TARGETS)))

single-subdirs := $(foreach d, $(subdir-ym), \
			$(if $(filter $(d)/%, $(KBUILD_SINGLE_TARGETS)), $(d)))

__build: $(curdir-single) $(single-subdirs)
ifneq ($(unknown-single),)
	$(Q)$(MAKE) -f /dev/null $(unknown-single)
endif
	@:

ifeq ($(curdir-single),)
# Nothing to do in this directory. Do not include any .*.cmd file for speed-up
targets :=
else
targets += $(curdir-single)
endif

else

__build: $(if $(KBUILD_BUILTIN), $(targets-for-builtin)) \
	 $(if $(KBUILD_MODULES), $(targets-for-modules)) \
	 $(subdir-ym) $(always-y)
	@:

endif

# Descending
# ---------------------------------------------------------------------------

PHONY += $(subdir-ym)
$(subdir-ym):
	$(Q)$(MAKE) $(build)=$@ \
	$(if $(filter $@/, $(KBUILD_SINGLE_TARGETS)),single-build=) \
	need-builtin=$(if $(filter $@/built-in.a, $(subdir-builtin)),1) \
	need-modorder=$(if $(filter $@/modules.order, $(subdir-modorder)),1)

# Add FORCE to the prequisites of a target to force it to be always rebuilt.
# ---------------------------------------------------------------------------

PHONY += FORCE

FORCE:

# Read all saved command lines and dependencies for the $(targets) we
# may be building above, using $(if_changed{,_dep}). As an
# optimization, we don't need to read them if the target does not
# exist, we will rebuild anyway in that case.

existing-targets := $(wildcard $(sort $(targets)))

-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)

# Create directories for object files if they do not exist
obj-dirs := $(sort $(patsubst %/,%, $(dir $(targets))))
# If targets exist, their directories apparently exist. Skip mkdir.
existing-dirs := $(sort $(patsubst %/,%, $(dir $(existing-targets))))
obj-dirs := $(strip $(filter-out $(existing-dirs), $(obj-dirs)))
ifneq ($(obj-dirs),)
$(shell mkdir -p $(obj-dirs))
endif

.PHONY: $(PHONY)

cmd: