1# SPDX-License-Identifier: GPL-2.0 2# ========================================================================== 3# Generating modules.builtin 4# ========================================================================== 5 6src := $(obj) 7 8PHONY := __modbuiltin 9__modbuiltin: 10 11-include include/config/auto.conf 12# tristate.conf sets tristate variables to uppercase 'Y' or 'M' 13# That way, we get the list of built-in modules in obj-Y 14-include include/config/tristate.conf 15 16include scripts/Kbuild.include 17 18ifneq ($(KBUILD_SRC),) 19# Create output directory if not already present 20_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj)) 21endif 22 23# The filename Kbuild has precedence over Makefile 24kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) 25kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile) 26include $(kbuild-file) 27 28include scripts/Makefile.lib 29__subdir-Y := $(patsubst %/,%,$(filter %/, $(obj-Y))) 30subdir-Y += $(__subdir-Y) 31subdir-ym := $(sort $(subdir-y) $(subdir-Y) $(subdir-m)) 32subdir-ym := $(addprefix $(obj)/,$(subdir-ym)) 33obj-Y := $(addprefix $(obj)/,$(obj-Y)) 34 35modbuiltin-subdirs := $(patsubst %,%/modules.builtin, $(subdir-ym)) 36modbuiltin-mods := $(filter %.ko, $(obj-Y:.o=.ko)) 37modbuiltin-target := $(obj)/modules.builtin 38 39__modbuiltin: $(modbuiltin-target) $(subdir-ym) 40 @: 41 42$(modbuiltin-target): $(subdir-ym) FORCE 43 $(Q)(for m in $(modbuiltin-mods); do echo kernel/$$m; done; \ 44 cat /dev/null $(modbuiltin-subdirs)) > $@ 45 46PHONY += FORCE 47 48FORCE: 49 50# Descending 51# --------------------------------------------------------------------------- 52 53PHONY += $(subdir-ym) 54$(subdir-ym): 55 $(Q)$(MAKE) $(modbuiltin)=$@ 56 57 58# Declare the contents of the .PHONY variable as phony. We keep that 59# information in a variable se we can use it in if_changed and friends. 60 61.PHONY: $(PHONY) 62