[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / Documentation / DocBook / Makefile

###
# This makefile is used to generate the kernel documentation,
# primarily based on in-line comments in various source files.
# See Documentation/kernel-doc-nano-HOWTO.txt for instruction in how
# to ducument the SRC - and how to read it.
# To add a new book the only step required is to add the book to the
# list of DOCBOOKS.

DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \
	    kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
	    procfs-guide.xml writing_usb_driver.xml \
	    kernel-api.xml journal-api.xml lsm.xml usb.xml \
	    gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml

###
# The build process is as follows (targets):
#              (xmldocs)
# file.tmpl --> file.xml +--> file.ps   (psdocs)
#                        +--> file.pdf  (pdfdocs)
#                        +--> DIR=file  (htmldocs)
#                        +--> man/      (mandocs)


# for PDF and PS output you can choose between xmlto and docbook-utils tools
PDF_METHOD	= $(prefer-db2x)
PS_METHOD	= $(prefer-db2x)


###
# The targets that may be used.
PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs

BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
xmldocs: $(BOOKS)
sgmldocs: xmldocs

PS := $(patsubst %.xml, %.ps, $(BOOKS))
psdocs: $(PS)

PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
pdfdocs: $(PDF)

HTML := $(patsubst %.xml, %.html, $(BOOKS))
htmldocs: $(HTML)

MAN := $(patsubst %.xml, %.9, $(BOOKS))
mandocs: $(MAN)

installmandocs: mandocs
	mkdir -p /usr/local/man/man9/
	install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/

###
#External programs used
KERNELDOC = scripts/kernel-doc
DOCPROC   = scripts/basic/docproc

XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
#XMLTOFLAGS += --skip-validation

###
# DOCPROC is used for two purposes:
# 1) To generate a dependency list for a .tmpl file
# 2) To preprocess a .tmpl file and call kernel-doc with
#     appropriate parameters.
# The following rules are used to generate the .xml documentation
# required to generate the final targets. (ps, pdf, html).
quiet_cmd_docproc = DOCPROC $@
      cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
define rule_docproc
	set -e;								\
        $(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))';) 	\
        $(cmd_$(1)); 							\
        ( 								\
          echo 'cmd_$@ := $(cmd_$(1))'; 				\
          echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; 		\
        ) > $(dir $@).$(notdir $@).cmd
endef

%.xml: %.tmpl FORCE
	$(call if_changed_rule,docproc)

###
#Read in all saved dependency files 
cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd))

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

###
# Changes in kernel-doc force a rebuild of all documentation
$(BOOKS): $(KERNELDOC)

###
# procfs guide uses a .c file as example code.
# This requires an explicit dependency
C-procfs-example = procfs_example.xml
C-procfs-example2 = $(addprefix $(obj)/,$(C-procfs-example))
$(obj)/procfs-guide.xml: $(C-procfs-example2)

notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \
		   exit 1
db2xtemplate = db2TYPE -o $(dir $@) $<
xmltotemplate = xmlto TYPE $(XMLTOFLAGS) -o $(dir $@) $<

# determine which methods are available
ifeq ($(shell which db2ps >/dev/null 2>&1 && echo found),found)
	use-db2x = db2x
	prefer-db2x = db2x
else
	use-db2x = notfound
	prefer-db2x = $(use-xmlto)
endif
ifeq ($(shell which xmlto >/dev/null 2>&1 && echo found),found)
	use-xmlto = xmlto
	prefer-xmlto = xmlto
else
	use-xmlto = notfound
	prefer-xmlto = $(use-db2x)
endif

# the commands, generated from the chosen template
quiet_cmd_db2ps = PS      $@
      cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
%.ps : %.xml
	$(call cmd,db2ps)

quiet_cmd_db2pdf = PDF      $@
      cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
%.pdf : %.xml
	$(call cmd,db2pdf)

quiet_cmd_db2html = HTML   $@
      cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
		echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
         Goto $(patsubst %.html,%,$(notdir $@))</a><p>' > $@

%.html:	%.xml
	@(which xmlto > /dev/null 2>&1) || \
	 (echo "*** You need to install xmlto ***"; \
	  exit 1)
	@rm -rf $@ $(patsubst %.html,%,$@)
	$(call cmd,db2html)
	@if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
            cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi

quiet_cmd_db2man = MAN     $@
      cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man $< ; gzip -f $(obj)/man/*.9; fi
%.9 : %.xml
	@(which xmlto > /dev/null 2>&1) || \
	 (echo "*** You need to install xmlto ***"; \
	  exit 1)
	$(call cmd,db2man)
	@touch $@

###
# Rules to generate postscripts and PNG imgages from .fig format files
quiet_cmd_fig2eps = FIG2EPS $@
      cmd_fig2eps = fig2dev -Leps $< $@

%.eps: %.fig
	@(which fig2dev > /dev/null 2>&1) || \
	 (echo "*** You need to install transfig ***"; \
	  exit 1)
	$(call cmd,fig2eps)

quiet_cmd_fig2png = FIG2PNG $@
      cmd_fig2png = fig2dev -Lpng $< $@

%.png: %.fig
	@(which fig2dev > /dev/null 2>&1) || \
	 (echo "*** You need to install transfig ***"; \
	  exit 1)
	$(call cmd,fig2png)

###
# Rule to convert a .c file to inline XML documentation
%.xml: %.c
	@echo '  GEN     $@'
	@(                            \
	   echo "<programlisting>";   \
	   expand --tabs=8 < $< |     \
	   sed -e "s/&/\\&amp;/g"     \
	       -e "s/</\\&lt;/g"      \
	       -e "s/>/\\&gt;/g";     \
	   echo "</programlisting>")  > $@

###
# Help targets as used by the top-level makefile
dochelp:
	@echo  '  Linux kernel internal documentation in different formats:'
	@echo  '  xmldocs (XML DocBook), psdocs (Postscript), pdfdocs (PDF)'
	@echo  '  htmldocs (HTML), mandocs (man pages, use installmandocs to install)'

###
# Temporary files left by various tools
clean-files := $(DOCBOOKS) \
	$(patsubst %.xml, %.dvi,  $(DOCBOOKS)) \
	$(patsubst %.xml, %.aux,  $(DOCBOOKS)) \
	$(patsubst %.xml, %.tex,  $(DOCBOOKS)) \
	$(patsubst %.xml, %.log,  $(DOCBOOKS)) \
	$(patsubst %.xml, %.out,  $(DOCBOOKS)) \
	$(patsubst %.xml, %.ps,   $(DOCBOOKS)) \
	$(patsubst %.xml, %.pdf,  $(DOCBOOKS)) \
	$(patsubst %.xml, %.html, $(DOCBOOKS)) \
	$(patsubst %.xml, %.9,    $(DOCBOOKS)) \
	$(C-procfs-example)

clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS))

#man put files in man subdir - traverse down
subdir- := man/


# Declare the contents of the .PHONY variable as phony.  We keep that
# information in a variable se we can use it in if_changed and friends.

.PHONY: $(PHONY)
Commit	Line	Data
1da177e4 LT	1	###
	2	# This makefile is used to generate the kernel documentation,
	3	# primarily based on in-line comments in various source files.
	4	# See Documentation/kernel-doc-nano-HOWTO.txt for instruction in how
	5	# to ducument the SRC - and how to read it.
	6	# To add a new book the only step required is to add the book to the
	7	# list of DOCBOOKS.
	8
	9	DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \
ac9296f9	10	kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
ad34ea2c	11	procfs-guide.xml writing_usb_driver.xml \
c3cf560e	12	kernel-api.xml journal-api.xml lsm.xml usb.xml \
394b701c	13	gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml
1da177e4 LT	14
	15	###
	16	# The build process is as follows (targets):
	17	# (xmldocs)
	18	# file.tmpl --> file.xml +--> file.ps (psdocs)
	19	# +--> file.pdf (pdfdocs)
	20	# +--> DIR=file (htmldocs)
	21	# +--> man/ (mandocs)
	22
71f95cfb MW	23
	24	# for PDF and PS output you can choose between xmlto and docbook-utils tools
	25	PDF_METHOD = $(prefer-db2x)
	26	PS_METHOD = $(prefer-db2x)
	27
	28
1da177e4 LT	29	###
1da177e4 LT	30	# The targets that may be used.
4f193362	31	PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs
1da177e4 LT	32
	33	BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
	34	xmldocs: $(BOOKS)
	35	sgmldocs: xmldocs
	36
	37	PS := $(patsubst %.xml, %.ps, $(BOOKS))
	38	psdocs: $(PS)
	39
	40	PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
	41	pdfdocs: $(PDF)
	42
	43	HTML := $(patsubst %.xml, %.html, $(BOOKS))
	44	htmldocs: $(HTML)
	45
	46	MAN := $(patsubst %.xml, %.9, $(BOOKS))
	47	mandocs: $(MAN)
	48
	49	installmandocs: mandocs
8b0c2d98 MW	50	mkdir -p /usr/local/man/man9/
8b0c2d98 MW	51	install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/
1da177e4 LT	52
	53	###
	54	#External programs used
	55	KERNELDOC = scripts/kernel-doc
	56	DOCPROC = scripts/basic/docproc
8b0c2d98	57
597f6eea	58	XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
2948e57d	59	#XMLTOFLAGS += --skip-validation
1da177e4 LT	60
	61	###
	62	# DOCPROC is used for two purposes:
	63	# 1) To generate a dependency list for a .tmpl file
	64	# 2) To preprocess a .tmpl file and call kernel-doc with
	65	# appropriate parameters.
	66	# The following rules are used to generate the .xml documentation
	67	# required to generate the final targets. (ps, pdf, html).
	68	quiet_cmd_docproc = DOCPROC $@
	69	cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
	70	define rule_docproc
	71	set -e; \
	72	$(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))';) \
	73	$(cmd_$(1)); \
	74	( \
	75	echo 'cmd_$@ := $(cmd_$(1))'; \
	76	echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; \
	77	) > $(dir $@).$(notdir $@).cmd
	78	endef
	79
	80	%.xml: %.tmpl FORCE
	81	$(call if_changed_rule,docproc)
	82
	83	###
	84	#Read in all saved dependency files
	85	cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd))
	86
	87	ifneq ($(cmd_files),)
	88	include $(cmd_files)
	89	endif
	90
	91	###
	92	# Changes in kernel-doc force a rebuild of all documentation
	93	$(BOOKS): $(KERNELDOC)
	94
	95	###
	96	# procfs guide uses a .c file as example code.
	97	# This requires an explicit dependency
	98	C-procfs-example = procfs_example.xml
	99	C-procfs-example2 = $(addprefix $(obj)/,$(C-procfs-example))
	100	$(obj)/procfs-guide.xml: $(C-procfs-example2)
	101
71f95cfb MW	102	notfoundtemplate = echo "* You have to install docbook-utils or xmlto *"; \
	103	exit 1
	104	db2xtemplate = db2TYPE -o $(dir $@) $<
	105	xmltotemplate = xmlto TYPE $(XMLTOFLAGS) -o $(dir $@) $<
	106
	107	# determine which methods are available
	108	ifeq ($(shell which db2ps >/dev/null 2>&1 && echo found),found)
	109	use-db2x = db2x
	110	prefer-db2x = db2x
	111	else
	112	use-db2x = notfound
	113	prefer-db2x = $(use-xmlto)
	114	endif
	115	ifeq ($(shell which xmlto >/dev/null 2>&1 && echo found),found)
	116	use-xmlto = xmlto
	117	prefer-xmlto = xmlto
	118	else
	119	use-xmlto = notfound
	120	prefer-xmlto = $(use-db2x)
	121	endif
1da177e4	122
71f95cfb MW	123	# the commands, generated from the chosen template
	124	quiet_cmd_db2ps = PS $@
	125	cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
1da177e4	126	%.ps : %.xml
1da177e4 LT	127	$(call cmd,db2ps)
1da177e4 LT	128
71f95cfb MW	129	quiet_cmd_db2pdf = PDF $@
71f95cfb MW	130	cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
1da177e4	131	%.pdf : %.xml
1da177e4 LT	132	$(call cmd,db2pdf)
1da177e4 LT	133
71f95cfb	134	quiet_cmd_db2html = HTML $@
8b0c2d98	135	cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
4fa35166	136	echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
1da177e4 LT	137	Goto $(patsubst %.html,%,$(notdir $@))</a><p>' > $@
	138
	139	%.html: %.xml
8b0c2d98	140	@(which xmlto > /dev/null 2>&1) \|\| \
fd4a3244	141	(echo "* You need to install xmlto *"; \
1da177e4 LT	142	exit 1)
	143	@rm -rf $@ $(patsubst %.html,%,$@)
	144	$(call cmd,db2html)
	145	@if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
	146	cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
	147
71f95cfb	148	quiet_cmd_db2man = MAN $@
8b0c2d98 MW	149	cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man $< ; gzip -f $(obj)/man/*.9; fi
	150	%.9 : %.xml
	151	@(which xmlto > /dev/null 2>&1) \|\| \
fd4a3244	152	(echo "* You need to install xmlto *"; \
8b0c2d98 MW	153	exit 1)
	154	$(call cmd,db2man)
	155	@touch $@
1da177e4 LT	156
	157	###
	158	# Rules to generate postscripts and PNG imgages from .fig format files
	159	quiet_cmd_fig2eps = FIG2EPS $@
	160	cmd_fig2eps = fig2dev -Leps $< $@
	161
	162	%.eps: %.fig
	163	@(which fig2dev > /dev/null 2>&1) \|\| \
	164	(echo "* You need to install transfig *"; \
	165	exit 1)
	166	$(call cmd,fig2eps)
	167
	168	quiet_cmd_fig2png = FIG2PNG $@
	169	cmd_fig2png = fig2dev -Lpng $< $@
	170
	171	%.png: %.fig
	172	@(which fig2dev > /dev/null 2>&1) \|\| \
	173	(echo "* You need to install transfig *"; \
	174	exit 1)
	175	$(call cmd,fig2png)
	176
	177	###
	178	# Rule to convert a .c file to inline XML documentation
	179	%.xml: %.c
	180	@echo ' GEN $@'
	181	@( \
	182	echo "<programlisting>"; \
	183	expand --tabs=8 < $< \| \
	184	sed -e "s/&/\\&/g" \
	185	-e "s/</\\</g" \
	186	-e "s/>/\\>/g"; \
	187	echo "</programlisting>") > $@
	188
	189	###
	190	# Help targets as used by the top-level makefile
	191	dochelp:
	192	@echo ' Linux kernel internal documentation in different formats:'
	193	@echo ' xmldocs (XML DocBook), psdocs (Postscript), pdfdocs (PDF)'
	194	@echo ' htmldocs (HTML), mandocs (man pages, use installmandocs to install)'
	195
	196	###
	197	# Temporary files left by various tools
	198	clean-files := $(DOCBOOKS) \
	199	$(patsubst %.xml, %.dvi, $(DOCBOOKS)) \
	200	$(patsubst %.xml, %.aux, $(DOCBOOKS)) \
	201	$(patsubst %.xml, %.tex, $(DOCBOOKS)) \
	202	$(patsubst %.xml, %.log, $(DOCBOOKS)) \
	203	$(patsubst %.xml, %.out, $(DOCBOOKS)) \
	204	$(patsubst %.xml, %.ps, $(DOCBOOKS)) \
	205	$(patsubst %.xml, %.pdf, $(DOCBOOKS)) \
	206	$(patsubst %.xml, %.html, $(DOCBOOKS)) \
	207	$(patsubst %.xml, %.9, $(DOCBOOKS)) \
	208	$(C-procfs-example)
	209
	210	clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS))
	211
	212	#man put files in man subdir - traverse down
	213	subdir- := man/
4f193362 PS	214
	215
	216	# Declare the contents of the .PHONY variable as phony. We keep that
	217	# information in a variable se we can use it in if_changed and friends.
	218
	219	.PHONY: $(PHONY)