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feature	-	Open
tests	-	Open
Build.include	4.71 MB	View DL Edit
fixdep.c	3.72 MB	View DL Edit
Makefile	1.2 MB	View DL Edit
Makefile.build	4.51 MB	View DL Edit
Makefile.feature	10.14 MB	View DL Edit
Makefile.include	500 B	View DL Edit

Edit file: /usr/src/kernels/5.14.0-611.34.1.el9_7.x86_64/tools/build/Makefile.build

# SPDX-License-Identifier: GPL-2.0
###
# Main build makefile.
#
#  Lots of this code have been borrowed or heavily inspired from parts
#  of kbuild code, which is not credited, but mostly developed by:
#
#  Copyright (C) Sam Ravnborg <sam@mars.ravnborg.org>, 2015
#  Copyright (C) Linus Torvalds <torvalds@linux-foundation.org>, 2015
#

PHONY := __build
__build:

ifeq ($(V),1)
  quiet =
  Q =
else
  quiet=quiet_
  Q=@
endif

# If the user is running make -s (silent mode), suppress echoing of commands
# make-4.0 (and later) keep single letter options in the 1st word of MAKEFLAGS.
ifeq ($(filter 3.%,$(MAKE_VERSION)),)
short-opts := $(firstword -$(MAKEFLAGS))
else
short-opts := $(filter-out --%,$(MAKEFLAGS))
endif

ifneq ($(findstring s,$(short-opts)),)
  quiet=silent_
endif

build-dir := $(srctree)/tools/build

# Define $(fixdep) for dep-cmd function
ifeq ($(OUTPUT),)
  fixdep := $(build-dir)/fixdep
else
  fixdep := $(OUTPUT)/fixdep
endif

# Generic definitions
include $(build-dir)/Build.include

# do not force detected configuration
-include $(OUTPUT).config-detected

# Init all relevant variables used in build files so
# 1) they have correct type
# 2) they do not inherit any value from the environment
subdir-y     :=
obj-y        :=
subdir-y     :=
subdir-obj-y :=

# Build definitions
build-file := $(dir)/Build
-include $(build-file)

quiet_cmd_flex  = FLEX    $@
quiet_cmd_bison = BISON   $@
quiet_cmd_test  = TEST    $@

# Create directory unless it exists
quiet_cmd_mkdir = MKDIR   $(dir $@)
      cmd_mkdir = mkdir -p $(dir $@)
     rule_mkdir = $(if $(wildcard $(dir $@)),,@$(call echo-cmd,mkdir) $(cmd_mkdir))

# Compile command
quiet_cmd_cc_o_c = CC      $@
      cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<

quiet_cmd_host_cc_o_c = HOSTCC  $@
      cmd_host_cc_o_c = $(HOSTCC) $(host_c_flags) -c -o $@ $<

quiet_cmd_cxx_o_c = CXX     $@
      cmd_cxx_o_c = $(CXX) $(cxx_flags) -c -o $@ $<

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

quiet_cmd_cc_s_c = AS      $@
      cmd_cc_s_c = $(CC) $(c_flags) -S -o $@ $<

quiet_cmd_gen = GEN     $@

# Link agregate command
# If there's nothing to link, create empty $@ object.
quiet_cmd_ld_multi = LD      $@
      cmd_ld_multi = $(if $(strip $(obj-y)),\
                     $(LD) -r -o $@  $(filter $(obj-y),$^),rm -f $@; $(AR) rcs $@)

quiet_cmd_host_ld_multi = HOSTLD  $@
      cmd_host_ld_multi = $(if $(strip $(obj-y)),\
                          $(HOSTLD) -r -o $@  $(filter $(obj-y),$^),rm -f $@; $(HOSTAR) rcs $@)

ifneq ($(filter $(obj),$(hostprogs)),)
  host = host_
endif

# Build rules
$(OUTPUT)%.o: %.c FORCE
	$(call rule_mkdir)
	$(call if_changed_dep,$(host)cc_o_c)

$(OUTPUT)%.o: %.cpp FORCE
	$(call rule_mkdir)
	$(call if_changed_dep,cxx_o_c)

$(OUTPUT)%.o: %.S FORCE
	$(call rule_mkdir)
	$(call if_changed_dep,$(host)cc_o_c)

$(OUTPUT)%.i: %.c FORCE
	$(call rule_mkdir)
	$(call if_changed_dep,cpp_i_c)

$(OUTPUT)%.s: %.S FORCE
	$(call rule_mkdir)
	$(call if_changed_dep,cpp_i_c)

$(OUTPUT)%.s: %.c FORCE
	$(call rule_mkdir)
	$(call if_changed_dep,cc_s_c)

# bison and flex files are generated in the OUTPUT directory
# so it needs a separate rule to depend on them properly
$(OUTPUT)%-bison.o: $(OUTPUT)%-bison.c FORCE
	$(call rule_mkdir)
	$(call if_changed_dep,$(host)cc_o_c)

$(OUTPUT)%-flex.o: $(OUTPUT)%-flex.c FORCE
	$(call rule_mkdir)
	$(call if_changed_dep,$(host)cc_o_c)

# Gather build data:
#   obj-y        - list of build objects
#   subdir-y     - list of directories to nest
#   subdir-obj-y - list of directories objects 'dir/$(obj)-in.o'
obj-y        := $($(obj)-y)
subdir-y     := $(patsubst %/,%,$(filter %/, $(obj-y)))
obj-y        := $(patsubst %/, %/$(obj)-in.o, $(obj-y))
subdir-obj-y := $(filter %/$(obj)-in.o, $(obj-y))

# '$(OUTPUT)/dir' prefix to all objects
objprefix    := $(subst ./,,$(OUTPUT)$(dir)/)
obj-y        := $(addprefix $(objprefix),$(obj-y))
subdir-obj-y := $(addprefix $(objprefix),$(subdir-obj-y))

# Final '$(obj)-in.o' object
in-target := $(objprefix)$(obj)-in.o

PHONY += $(subdir-y)

$(subdir-y):
	$(Q)$(MAKE) -f $(build-dir)/Makefile.build dir=$(dir)/$@ obj=$(obj)

$(sort $(subdir-obj-y)): $(subdir-y) ;

$(in-target): $(obj-y) FORCE
	$(call rule_mkdir)
	$(call if_changed,$(host)ld_multi)

__build: $(in-target)
	@:

PHONY += FORCE
FORCE:

# Include all cmd files to get all the dependency rules
# for all objects included
targets   := $(wildcard $(sort $(obj-y) $(in-target) $(MAKECMDGOALS)))
cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))

ifneq ($(cmd_files),)
  include $(cmd_files)
endif

.PHONY: $(PHONY)

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