Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) # SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) ###
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) # Main build makefile.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #  Lots of this code have been borrowed or heavily inspired from parts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #  of kbuild code, which is not credited, but mostly developed by:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #  Copyright (C) Sam Ravnborg <sam@mars.ravnborg.org>, 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #  Copyright (C) Linus Torvalds <torvalds@linux-foundation.org>, 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) PHONY := __build
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) __build:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) ifeq ($(V),1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)   quiet =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)   Q =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)   quiet=quiet_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20)   Q=@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) ifneq ($(findstring s,$(filter-out --%,$(MAKEFLAGS))),)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)   quiet=silent_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) build-dir := $(srctree)/tools/build
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) # Define $(fixdep) for dep-cmd function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) ifeq ($(OUTPUT),)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31)   fixdep := $(build-dir)/fixdep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33)   fixdep := $(OUTPUT)/fixdep
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) # Generic definitions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) include $(build-dir)/Build.include
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) # do not force detected configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) -include $(OUTPUT).config-detected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) # Init all relevant variables used in build files so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) # 1) they have correct type
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) # 2) they do not inherit any value from the environment
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) subdir-y     :=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) obj-y        :=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) subdir-y     :=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) subdir-obj-y :=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) # Build definitions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) build-file := $(dir)/Build
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) -include $(build-file)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) quiet_cmd_flex  = FLEX     $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) quiet_cmd_bison = BISON    $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) # Create directory unless it exists
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) quiet_cmd_mkdir = MKDIR    $(dir $@)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59)       cmd_mkdir = mkdir -p $(dir $@)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60)      rule_mkdir = $(if $(wildcard $(dir $@)),,@$(call echo-cmd,mkdir) $(cmd_mkdir))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) # Compile command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) quiet_cmd_cc_o_c = CC       $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64)       cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) quiet_cmd_host_cc_o_c = HOSTCC   $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)       cmd_host_cc_o_c = $(HOSTCC) $(host_c_flags) -c -o $@ $<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) quiet_cmd_cxx_o_c = CXX      $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70)       cmd_cxx_o_c = $(CXX) $(cxx_flags) -c -o $@ $<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) quiet_cmd_cpp_i_c = CPP      $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73)       cmd_cpp_i_c = $(CC) $(c_flags) -E -o $@ $<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) quiet_cmd_cc_s_c = AS       $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76)       cmd_cc_s_c = $(CC) $(c_flags) -S -o $@ $<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) quiet_cmd_gen = GEN      $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) # Link agregate command
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) # If there's nothing to link, create empty $@ object.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) quiet_cmd_ld_multi = LD       $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83)       cmd_ld_multi = $(if $(strip $(obj-y)),\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84)                      $(LD) -r -o $@  $(filter $(obj-y),$^),rm -f $@; $(AR) rcs $@)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) quiet_cmd_host_ld_multi = HOSTLD   $@
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87)       cmd_host_ld_multi = $(if $(strip $(obj-y)),\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88)                           $(HOSTLD) -r -o $@  $(filter $(obj-y),$^),rm -f $@; $(HOSTAR) rcs $@)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) ifneq ($(filter $(obj),$(hostprogs)),)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91)   host = host_
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) # Build rules
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) $(OUTPUT)%.o: %.c FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	$(call rule_mkdir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	$(call if_changed_dep,$(host)cc_o_c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) $(OUTPUT)%.o: %.cpp FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	$(call rule_mkdir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	$(call if_changed_dep,cxx_o_c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) $(OUTPUT)%.o: %.S FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	$(call rule_mkdir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	$(call if_changed_dep,$(host)cc_o_c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) $(OUTPUT)%.i: %.c FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	$(call rule_mkdir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	$(call if_changed_dep,cpp_i_c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) $(OUTPUT)%.s: %.S FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	$(call rule_mkdir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	$(call if_changed_dep,cpp_i_c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) $(OUTPUT)%.s: %.c FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	$(call rule_mkdir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	$(call if_changed_dep,cc_s_c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) # Gather build data:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #   obj-y        - list of build objects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #   subdir-y     - list of directories to nest
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #   subdir-obj-y - list of directories objects 'dir/$(obj)-in.o'
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) obj-y        := $($(obj)-y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) subdir-y     := $(patsubst %/,%,$(filter %/, $(obj-y)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) obj-y        := $(patsubst %/, %/$(obj)-in.o, $(obj-y))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) subdir-obj-y := $(filter %/$(obj)-in.o, $(obj-y))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) # '$(OUTPUT)/dir' prefix to all objects
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) objprefix    := $(subst ./,,$(OUTPUT)$(dir)/)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) obj-y        := $(addprefix $(objprefix),$(obj-y))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) subdir-obj-y := $(addprefix $(objprefix),$(subdir-obj-y))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) # Final '$(obj)-in.o' object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) in-target := $(objprefix)$(obj)-in.o
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) PHONY += $(subdir-y)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) $(subdir-y):
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	$(Q)$(MAKE) -f $(build-dir)/Makefile.build dir=$(dir)/$@ obj=$(obj)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) $(sort $(subdir-obj-y)): $(subdir-y) ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) $(in-target): $(obj-y) FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	$(call rule_mkdir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	$(call if_changed,$(host)ld_multi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) __build: $(in-target)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	@:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) PHONY += FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) FORCE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) # Include all cmd files to get all the dependency rules
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) # for all objects included
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) targets   := $(wildcard $(sort $(obj-y) $(in-target) $(MAKECMDGOALS)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) ifneq ($(cmd_files),)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)   include $(cmd_files)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) .PHONY: $(PHONY)