Merge "headers_lib: rename Android.bp"

2 files changed, 55 insertions, 50 deletions

diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic
index e4d017d53819..95f7d8090152 100644
--- a/scripts/Makefile.asm-generic
+++ b/scripts/Makefile.asm-generic
@@ -15,7 +15,7 @@ _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
 
 # Stale wrappers when the corresponding files are removed from generic-y
 # need removing.
-generated-y   := $(generic-y) $(genhdr-y) $(generated-y)
+generated-y   := $(generic-y) $(generated-y)
 all-files     := $(patsubst %, $(obj)/%, $(generated-y))
 old-headers   := $(wildcard $(obj)/*.h)
 unwanted      := $(filter-out $(all-files),$(old-headers))
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 88aff66f88d8..82abf5a09e5d 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -1,33 +1,56 @@
 # ==========================================================================
 # Installing headers
 #
-# header-y  - list files to be installed. They are preprocessed
-#             to remove __KERNEL__ section of the file
-# genhdr-y  - Same as header-y but in a generated/ directory
+# All headers under include/uapi, include/generated/uapi,
+# arch/<arch>/include/uapi and arch/<arch>/include/generated/uapi are
+# exported.
+# They are preprocessed to remove __KERNEL__ section of the file.
 #
 # ==========================================================================
 
+PHONY := __headers
+__headers:
+
+include scripts/Kbuild.include
+
+srcdir        := $(srctree)/$(obj)
+subdirs       := $(patsubst $(srcdir)/%/.,%,$(wildcard $(srcdir)/*/.))
+# caller may set destination dir (when installing to asm/)
+_dst          := $(if $(dst),$(dst),$(obj))
+
+# Recursion
+__headers: $(subdirs)
+
+.PHONY: $(subdirs)
+$(subdirs):
+	$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
+
+# Skip header install/check for include/uapi and arch/$(hdr-arch)/include/uapi.
+# We have only sub-directories there.
+skip-inst := $(if $(filter %/uapi,$(obj)),1)
+
+ifeq ($(skip-inst),)
+
 # generated header directory
 gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
 
+# Kbuild file is optional
 kbuild-file := $(srctree)/$(obj)/Kbuild
-include $(kbuild-file)
-
-# called may set destination dir (when installing to asm/)
-_dst := $(if $(dst),$(dst),$(obj))
+-include $(kbuild-file)
 
 old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
 ifneq ($(wildcard $(old-kbuild-file)),)
 include $(old-kbuild-file)
 endif
 
-include scripts/Kbuild.include
-
 installdir    := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
 
-header-y      := $(sort $(header-y))
-subdirs       := $(patsubst %/,%,$(filter %/, $(header-y)))
-header-y      := $(filter-out %/, $(header-y))
+gendir        := $(objtree)/$(gen)
+header-files  := $(notdir $(wildcard $(srcdir)/*.h))
+header-files  += $(notdir $(wildcard $(srcdir)/*.agh))
+header-files  := $(filter-out $(no-export-headers), $(header-files))
+genhdr-files  := $(notdir $(wildcard $(gendir)/*.h))
+genhdr-files  := $(filter-out $(header-files), $(genhdr-files))
 
 # files used to track state of install/check
 install-file  := $(installdir)/.install
@@ -35,36 +58,22 @@ check-file    := $(installdir)/.check
 
 # generic-y list all files an architecture uses from asm-generic
 # Use this to build a list of headers which require a wrapper
-wrapper-files := $(filter $(header-y), $(generic-y))
-
-srcdir        := $(srctree)/$(obj)
-gendir        := $(objtree)/$(gen)
+generic-files := $(notdir $(wildcard $(srctree)/include/uapi/asm-generic/*.h))
+wrapper-files := $(filter $(generic-files), $(generic-y))
+wrapper-files := $(filter-out $(header-files), $(wrapper-files))
 
 oldsrcdir     := $(srctree)/$(subst /uapi,,$(obj))
 
 # all headers files for this dir
-header-y      := $(filter-out $(generic-y), $(header-y))
-all-files     := $(header-y) $(genhdr-y) $(wrapper-files)
+all-files     := $(header-files) $(genhdr-files) $(wrapper-files)
 output-files  := $(addprefix $(installdir)/, $(all-files))
 
-input-files1  := $(foreach hdr, $(header-y), \
-		   $(if $(wildcard $(srcdir)/$(hdr)), \
-			$(wildcard $(srcdir)/$(hdr))) \
-		   )
-input-files1-name := $(notdir $(input-files1))
-input-files2  := $(foreach hdr, $(header-y), \
-		   $(if  $(wildcard $(srcdir)/$(hdr)),, \
-			$(if $(wildcard $(oldsrcdir)/$(hdr)), \
-				$(wildcard $(oldsrcdir)/$(hdr)), \
-				$(error Missing UAPI file $(srcdir)/$(hdr))) \
-		   ))
-input-files2-name := $(notdir $(input-files2))
-input-files3  := $(foreach hdr, $(genhdr-y), \
-		   $(if	$(wildcard $(gendir)/$(hdr)), \
-			$(wildcard $(gendir)/$(hdr)), \
-			$(error Missing generated UAPI file $(gendir)/$(hdr)) \
-		   ))
-input-files3-name := $(notdir $(input-files3))
+ifneq ($(mandatory-y),)
+missing       := $(filter-out $(all-files),$(mandatory-y))
+ifneq ($(missing),)
+$(error Some mandatory headers ($(missing)) are missing in $(obj))
+endif
+endif
 
 # Work out what needs to be removed
 oldheaders    := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
@@ -78,9 +87,8 @@ printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
 quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
                             file$(if $(word 2, $(all-files)),s))
       cmd_install = \
-        $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(input-files1-name); \
-        $(CONFIG_SHELL) $< $(installdir) $(oldsrcdir) $(input-files2-name); \
-        $(CONFIG_SHELL) $< $(installdir) $(gendir) $(input-files3-name); \
+	$(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \
+	$(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \
         for F in $(wrapper-files); do                                   \
                 echo "\#include <asm-generic/$$F>" > $(installdir)/$$F;    \
         done;                                                           \
@@ -98,21 +106,21 @@ quiet_cmd_check = CHECK   $(printdir) ($(words $(all-files)) files)
                   $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
 	          touch $@
 
-PHONY += __headersinst __headerscheck
-
 ifndef HDRCHECK
 # Rules for installing headers
-__headersinst: $(subdirs) $(install-file)
+__headers: $(install-file)
 	@:
 
 targets += $(install-file)
-$(install-file): scripts/headers_install.sh $(input-files1) $(input-files2) $(input-files3) FORCE
+$(install-file): scripts/headers_install.sh \
+		$(addprefix $(srcdir)/,$(header-files)) \
+		$(addprefix $(gendir)/,$(genhdr-files)) FORCE
 	$(if $(unwanted),$(call cmd,remove),)
 	$(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
 	$(call if_changed,install)
 
 else
-__headerscheck: $(subdirs) $(check-file)
+__headers: $(check-file)
 	@:
 
 targets += $(check-file)
@@ -121,11 +129,6 @@ $(check-file): scripts/headers_check.pl $(output-files) FORCE
 
 endif
 
-# Recursion
-.PHONY: $(subdirs)
-$(subdirs):
-	$(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$(subst drivers/staging,usr/include/linux/staging,$@)
-
 targets := $(wildcard $(sort $(targets)))
 cmd_files := $(wildcard \
              $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
@@ -134,6 +137,8 @@ ifneq ($(cmd_files),)
 	include $(cmd_files)
 endif
 
+endif # skip-inst
+
 .PHONY: $(PHONY)
 PHONY += FORCE
 FORCE: ;