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 := wanbook.xml z8530book.xml mcabook.xml videobook.xml \
10 kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
11 procfs-guide.xml writing_usb_driver.xml \
12 kernel-api.xml journal-api.xml lsm.xml usb.xml \
13 gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
17 # The build process is as follows (targets):
19 # file.tmpl --> file.xml +--> file.ps (psdocs)
20 # +--> file.pdf (pdfdocs)
21 # +--> DIR=file (htmldocs)
25 # for PDF and PS output you can choose between xmlto and docbook-utils tools
26 PDF_METHOD = $(prefer-db2x)
27 PS_METHOD = $(prefer-db2x)
31 # The targets that may be used.
32 PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs
34 BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
38 PS := $(patsubst %.xml, %.ps, $(BOOKS))
41 PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
44 HTML := $(patsubst %.xml, %.html, $(BOOKS))
47 MAN := $(patsubst %.xml, %.9, $(BOOKS))
50 installmandocs: mandocs
51 mkdir -p /usr/local/man/man9/
52 install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/
55 #External programs used
56 KERNELDOC = scripts/kernel-doc
57 DOCPROC = scripts/basic/docproc
59 XMLTOFLAGS = -m $(srctree)/Documentation/DocBook/stylesheet.xsl
60 #XMLTOFLAGS += --skip-validation
63 # DOCPROC is used for two purposes:
64 # 1) To generate a dependency list for a .tmpl file
65 # 2) To preprocess a .tmpl file and call kernel-doc with
66 # appropriate parameters.
67 # The following rules are used to generate the .xml documentation
68 # required to generate the final targets. (ps, pdf, html).
69 quiet_cmd_docproc = DOCPROC $@
70 cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
73 $(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))';) \
76 echo 'cmd_$@ := $(cmd_$(1))'; \
77 echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; \
78 ) > $(dir $@).$(notdir $@).cmd
82 $(call if_changed_rule,docproc)
85 #Read in all saved dependency files
86 cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd))
93 # Changes in kernel-doc force a rebuild of all documentation
94 $(BOOKS): $(KERNELDOC)
97 # procfs guide uses a .c file as example code.
98 # This requires an explicit dependency
99 C-procfs-example = procfs_example.xml
100 C-procfs-example2 = $(addprefix $(obj)/,$(C-procfs-example))
101 $(obj)/procfs-guide.xml: $(C-procfs-example2)
103 notfoundtemplate = echo "*** You have to install docbook-utils or xmlto ***"; \
105 db2xtemplate = db2TYPE -o $(dir $@) $<
106 xmltotemplate = xmlto TYPE $(XMLTOFLAGS) -o $(dir $@) $<
108 # determine which methods are available
109 ifeq ($(shell which db2ps >/dev/null 2>&1 && echo found),found)
114 prefer-db2x = $(use-xmlto)
116 ifeq ($(shell which xmlto >/dev/null 2>&1 && echo found),found)
121 prefer-xmlto = $(use-db2x)
124 # the commands, generated from the chosen template
125 quiet_cmd_db2ps = PS $@
126 cmd_db2ps = $(subst TYPE,ps, $($(PS_METHOD)template))
130 quiet_cmd_db2pdf = PDF $@
131 cmd_db2pdf = $(subst TYPE,pdf, $($(PDF_METHOD)template))
135 quiet_cmd_db2html = HTML $@
136 cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
137 echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
138 Goto $(patsubst %.html,%,$(notdir $@))</a><p>' > $@
141 @(which xmlto > /dev/null 2>&1) || \
142 (echo "*** You need to install xmlto ***"; \
144 @rm -rf $@ $(patsubst %.html,%,$@)
146 @if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
147 cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
149 quiet_cmd_db2man = MAN $@
150 cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man $< ; gzip -f $(obj)/man/*.9; fi
152 @(which xmlto > /dev/null 2>&1) || \
153 (echo "*** You need to install xmlto ***"; \
159 # Rules to generate postscripts and PNG imgages from .fig format files
160 quiet_cmd_fig2eps = FIG2EPS $@
161 cmd_fig2eps = fig2dev -Leps $< $@
164 @(which fig2dev > /dev/null 2>&1) || \
165 (echo "*** You need to install transfig ***"; \
169 quiet_cmd_fig2png = FIG2PNG $@
170 cmd_fig2png = fig2dev -Lpng $< $@
173 @(which fig2dev > /dev/null 2>&1) || \
174 (echo "*** You need to install transfig ***"; \
179 # Rule to convert a .c file to inline XML documentation
183 echo "<programlisting>"; \
184 expand --tabs=8 < $< | \
185 sed -e "s/&/\\&/g" \
188 echo "</programlisting>") > $@
191 # Help targets as used by the top-level makefile
193 @echo ' Linux kernel internal documentation in different formats:'
194 @echo ' xmldocs (XML DocBook), psdocs (Postscript), pdfdocs (PDF)'
195 @echo ' htmldocs (HTML), mandocs (man pages, use installmandocs to install)'
198 # Temporary files left by various tools
199 clean-files := $(DOCBOOKS) \
200 $(patsubst %.xml, %.dvi, $(DOCBOOKS)) \
201 $(patsubst %.xml, %.aux, $(DOCBOOKS)) \
202 $(patsubst %.xml, %.tex, $(DOCBOOKS)) \
203 $(patsubst %.xml, %.log, $(DOCBOOKS)) \
204 $(patsubst %.xml, %.out, $(DOCBOOKS)) \
205 $(patsubst %.xml, %.ps, $(DOCBOOKS)) \
206 $(patsubst %.xml, %.pdf, $(DOCBOOKS)) \
207 $(patsubst %.xml, %.html, $(DOCBOOKS)) \
208 $(patsubst %.xml, %.9, $(DOCBOOKS)) \
211 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS))
213 #man put files in man subdir - traverse down
217 # Declare the contents of the .PHONY variable as phony. We keep that
218 # information in a variable se we can use it in if_changed and friends.