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 document the SRC - and how to read it.
6 # To add a new book the only step required is to add the book to the
9 DOCBOOKS := z8530book.xml device-drivers.xml \
10 kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
11 writing_usb_driver.xml networking.xml \
12 kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \
13 gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
14 genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
15 80211.xml debugobjects.xml sh.xml regulator.xml \
16 alsa-driver-api.xml writing-an-alsa-driver.xml \
17 tracepoint.xml drm.xml media_api.xml w1.xml \
18 writing_musb_glue_layer.xml crypto-API.xml
20 include Documentation/DocBook/media/Makefile
23 # The build process is as follows (targets):
24 # (xmldocs) [by docproc]
25 # file.tmpl --> file.xml +--> file.ps (psdocs) [by db2ps or xmlto]
26 # +--> file.pdf (pdfdocs) [by db2pdf or xmlto]
27 # +--> DIR=file (htmldocs) [by xmlto]
28 # +--> man/ (mandocs) [by xmlto]
31 # for PDF and PS output you can choose between xmlto and docbook-utils tools
32 PDF_METHOD = $(prefer-db2x)
33 PS_METHOD = $(prefer-db2x)
37 # The targets that may be used.
38 PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs
40 targets += $(DOCBOOKS)
41 BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
45 PS := $(patsubst %.xml, %.ps, $(BOOKS))
48 PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
51 HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS)))
53 $(call build_main_index)
55 $(call install_media_images)
57 MAN := $(patsubst %.xml, %.9, $(BOOKS))
59 find $(obj)/man -name '*.9' | xargs gzip -nf
61 installmandocs: mandocs
62 mkdir -p /usr/local/man/man9/
63 find $(obj)/man -name '*.9.gz' -printf '%h %f\n' | \
64 sort -k 2 -k 1 | uniq -f 1 | sed -e 's: :/:' | \
65 xargs install -m 644 -t /usr/local/man/man9/
68 #External programs used
69 KERNELDOC = $(srctree)/scripts/kernel-doc
70 DOCPROC = $(objtree)/scripts/docproc
72 XMLTOFLAGS = -m $(srctree)/$(src)/stylesheet.xsl
73 XMLTOFLAGS += --skip-validation
76 # DOCPROC is used for two purposes:
77 # 1) To generate a dependency list for a .tmpl file
78 # 2) To preprocess a .tmpl file and call kernel-doc with
79 # appropriate parameters.
80 # The following rules are used to generate the .xml documentation
81 # required to generate the final targets. (ps, pdf, html).
82 quiet_cmd_docproc = DOCPROC $@
83 cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
86 $(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))';) \
89 echo 'cmd_$@ := $(cmd_$(1))'; \
90 echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; \
91 ) > $(dir $@).$(notdir $@).cmd
94 %.xml: %.tmpl $(KERNELDOC) $(DOCPROC) FORCE
95 $(call if_changed_rule,docproc)
97 # Tell kbuild to always build the programs
98 always := $(hostprogs-y)
100 notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \
102 db2xtemplate = db2TYPE -o $(dir $@) $<
103 xmltotemplate = xmlto TYPE $(XMLTOFLAGS) -o $(dir $@) $<
105 # determine which methods are available
106 ifeq ($(shell which db2ps >/dev/null 2>&1 && echo found),found)
111 prefer-db2x = $(use-xmlto)
113 ifeq ($(shell which xmlto >/dev/null 2>&1 && echo found),found)
118 prefer-xmlto = $(use-db2x)
121 # the commands, generated from the chosen template
122 quiet_cmd_db2ps = PS $@
123 cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
127 quiet_cmd_db2pdf = PDF $@
128 cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
134 main_idx = $(obj)/$(index)
135 build_main_index = rm -rf $(main_idx); \
136 echo '<h1>Linux Kernel HTML Documentation</h1>' >> $(main_idx) && \
137 echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \
138 cat $(HTML) >> $(main_idx)
140 quiet_cmd_db2html = HTML $@
141 cmd_db2html = xmlto html $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
142 echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
143 $(patsubst %.html,%,$(notdir $@))</a><p>' > $@
146 @(which xmlto > /dev/null 2>&1) || \
147 (echo "*** You need to install xmlto ***"; \
149 @rm -rf $@ $(patsubst %.html,%,$@)
151 @if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
152 cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
154 quiet_cmd_db2man = MAN $@
155 cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man/$(*F) $< ; fi
157 @(which xmlto > /dev/null 2>&1) || \
158 (echo "*** You need to install xmlto ***"; \
160 $(Q)mkdir -p $(obj)/man/$(*F)
165 # Rules to generate postscripts and PNG images from .fig format files
166 quiet_cmd_fig2eps = FIG2EPS $@
167 cmd_fig2eps = fig2dev -Leps $< $@
170 @(which fig2dev > /dev/null 2>&1) || \
171 (echo "*** You need to install transfig ***"; \
175 quiet_cmd_fig2png = FIG2PNG $@
176 cmd_fig2png = fig2dev -Lpng $< $@
179 @(which fig2dev > /dev/null 2>&1) || \
180 (echo "*** You need to install transfig ***"; \
185 # Rule to convert a .c file to inline XML documentation
187 quiet_gen_xml = echo ' GEN $@'
192 echo "<programlisting>"; \
193 expand --tabs=8 < $< | \
194 sed -e "s/&/\\&/g" \
197 echo "</programlisting>") > $@
200 # Help targets as used by the top-level makefile
202 @echo ' Linux kernel internal documentation in different formats:'
203 @echo ' htmldocs - HTML'
204 @echo ' pdfdocs - PDF'
205 @echo ' psdocs - Postscript'
206 @echo ' xmldocs - XML DocBook'
207 @echo ' mandocs - man pages'
208 @echo ' installmandocs - install man pages generated by mandocs'
209 @echo ' cleandocs - clean all generated DocBook files'
212 # Temporary files left by various tools
213 clean-files := $(DOCBOOKS) \
214 $(patsubst %.xml, %.dvi, $(DOCBOOKS)) \
215 $(patsubst %.xml, %.aux, $(DOCBOOKS)) \
216 $(patsubst %.xml, %.tex, $(DOCBOOKS)) \
217 $(patsubst %.xml, %.log, $(DOCBOOKS)) \
218 $(patsubst %.xml, %.out, $(DOCBOOKS)) \
219 $(patsubst %.xml, %.ps, $(DOCBOOKS)) \
220 $(patsubst %.xml, %.pdf, $(DOCBOOKS)) \
221 $(patsubst %.xml, %.html, $(DOCBOOKS)) \
222 $(patsubst %.xml, %.9, $(DOCBOOKS)) \
225 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man
227 cleandocs: cleanmediadocs
228 $(Q)rm -f $(call objectify, $(clean-files))
229 $(Q)rm -rf $(call objectify, $(clean-dirs))
231 # Declare the contents of the .PHONY variable as phony. We keep that
232 # information in a variable se we can use it in if_changed and friends.