### # 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 document 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 := z8530book.xml mcabook.xml device-drivers.xml \ kernel-hacking.xml kernel-locking.xml deviceiobook.xml \ writing_usb_driver.xml networking.xml \ kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \ gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \ genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ 80211.xml debugobjects.xml sh.xml regulator.xml \ alsa-driver-api.xml writing-an-alsa-driver.xml \ tracepoint.xml media.xml drm.xml ### # The build process is as follows (targets): # (xmldocs) [by docproc] # file.tmpl --> file.xml +--> file.ps (psdocs) [by db2ps or xmlto] # +--> file.pdf (pdfdocs) [by db2pdf or xmlto] # +--> DIR=file (htmldocs) [by xmlto] # +--> man/ (mandocs) [by xmlto] # 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 cleandocs xmldoclinks BOOKS := $(addprefix $(obj)/,$(DOCBOOKS)) xmldocs: $(BOOKS) sgmldocs: xmldocs PS := $(patsubst %.xml, %.ps, $(BOOKS)) psdocs: $(PS) PDF := $(patsubst %.xml, %.pdf, $(BOOKS)) pdfdocs: $(PDF) HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS))) htmldocs: $(HTML) xmldoclinks $(call build_main_index) $(call build_images) MAN := $(patsubst %.xml, %.9, $(BOOKS)) mandocs: $(MAN) build_images = mkdir -p $(objtree)/Documentation/DocBook/media/ && \ cp $(srctree)/Documentation/DocBook/dvb/*.png \ $(srctree)/Documentation/DocBook/v4l/*.gif \ $(srctree)/Documentation/DocBook/v4l/*.png \ $(objtree)/Documentation/DocBook/media/ xmldoclinks: ifneq ($(objtree),$(srctree)) for dep in dvb media-entities.tmpl media-indices.tmpl v4l; do \ rm -f $(objtree)/Documentation/DocBook/$$dep \ && ln -s $(srctree)/Documentation/DocBook/$$dep $(objtree)/Documentation/DocBook/ \ || exit; \ done endif installmandocs: mandocs mkdir -p /usr/local/man/man9/ install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/ ### #External programs used KERNELDOC = $(srctree)/scripts/kernel-doc DOCPROC = $(objtree)/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 xmldoclinks 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) # Tell kbuild to always build the programs always := $(hostprogs-y) 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 $(call cmd,db2pdf) index = index.html main_idx = Documentation/DocBook/$(index) build_main_index = rm -rf $(main_idx) && \ echo '
' > $@
%.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)
$(Q)mkdir -p $(obj)/man
$(call cmd,db2man)
@touch $@
###
# Rules to generate postscripts and PNG images 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
gen_xml = :
quiet_gen_xml = echo ' GEN $@'
silent_gen_xml = :
%.xml: %.c
@$($(quiet)gen_xml)
@( \
echo "