Documentation/DocBook/Makefile

   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 \
  10             kernel-hacking.xml kernel-locking.xml deviceiobook.xml \
  11             procfs-guide.xml writing_usb_driver.xml scsidrivers.xml \
  12             sis900.xml kernel-api.xml journal-api.xml lsm.xml usb.xml \
  13             gadget.xml libata.xml mtdnand.xml librs.xml
  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
  23 ###
  24 # The targets that may be used.
  25 .PHONY: xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs
  26
  27 BOOKS := $(addprefix $(obj)/,$(DOCBOOKS))
  28 xmldocs: $(BOOKS)
  29 sgmldocs: xmldocs
  30
  31 PS := $(patsubst %.xml, %.ps, $(BOOKS))
  32 psdocs: $(PS)
  33
  34 PDF := $(patsubst %.xml, %.pdf, $(BOOKS))
  35 pdfdocs: $(PDF)
  36
  37 HTML := $(patsubst %.xml, %.html, $(BOOKS))
  38 htmldocs: $(HTML)
  39
  40 MAN := $(patsubst %.xml, %.9, $(BOOKS))
  41 mandocs: $(MAN)
  42
  43 installmandocs: mandocs
  44         mkdir -p /usr/local/man/man9/
  45         install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/
  46
  47 ###
  48 #External programs used
  49 KERNELDOC = scripts/kernel-doc
  50 DOCPROC   = scripts/basic/docproc
  51
  52 XMLTOFLAGS = -m Documentation/DocBook/stylesheet.xsl
  53 #XMLTOFLAGS += --skip-validation
  54
  55 ###
  56 # DOCPROC is used for two purposes:
  57 # 1) To generate a dependency list for a .tmpl file
  58 # 2) To preprocess a .tmpl file and call kernel-doc with
  59 #     appropriate parameters.
  60 # The following rules are used to generate the .xml documentation
  61 # required to generate the final targets. (ps, pdf, html).
  62 quiet_cmd_docproc = DOCPROC $@
  63       cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@
  64 define rule_docproc
  65         set -e;                                                         \
  66         $(if $($(quiet)cmd_$(1)),echo '  $($(quiet)cmd_$(1))';)         \
  67         $(cmd_$(1));                                                    \
  68         (                                                               \
  69           echo 'cmd_$@ := $(cmd_$(1))';                                 \
  70           echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`;           \
  71         ) > $(dir $@).$(notdir $@).cmd
  72 endef
  73
  74 %.xml: %.tmpl FORCE
  75         $(call if_changed_rule,docproc)
  76
  77 ###
  78 #Read in all saved dependency files
  79 cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd))
  80
  81 ifneq ($(cmd_files),)
  82   include $(cmd_files)
  83 endif
  84
  85 ###
  86 # Changes in kernel-doc force a rebuild of all documentation
  87 $(BOOKS): $(KERNELDOC)
  88
  89 ###
  90 # procfs guide uses a .c file as example code.
  91 # This requires an explicit dependency
  92 C-procfs-example = procfs_example.xml
  93 C-procfs-example2 = $(addprefix $(obj)/,$(C-procfs-example))
  94 $(obj)/procfs-guide.xml: $(C-procfs-example2)
  95
  96 ###
  97 # Rules to generate postscript, PDF and HTML
  98 # db2html creates a directory. Generate a html file used for timestamp
  99
 100 quiet_cmd_db2ps = XMLTO    $@
 101       cmd_db2ps = xmlto ps $(XMLTOFLAGS) -o $(dir $@) $<
 102 %.ps : %.xml
 103         @(which xmlto > /dev/null 2>&1) || \
 104          (echo "*** You need to install xmlto ***"; \
 105           exit 1)
 106         $(call cmd,db2ps)
 107
 108 quiet_cmd_db2pdf = XMLTO   $@
 109       cmd_db2pdf = xmlto pdf $(XMLTOFLAGS) -o $(dir $@) $<
 110 %.pdf : %.xml
 111         @(which xmlto > /dev/null 2>&1) || \
 112          (echo "*** You need to install xmlto ***"; \
 113           exit 1)
 114         $(call cmd,db2pdf)
 115
 116 quiet_cmd_db2html = XMLTO  $@
 117       cmd_db2html = xmlto xhtml $(XMLTOFLAGS) -o $(patsubst %.html,%,$@) $< && \
 118                 echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/index.html"> \
 119          Goto $(patsubst %.html,%,$(notdir $@))</a><p>' > $@
 120
 121 %.html: %.xml
 122         @(which xmlto > /dev/null 2>&1) || \
 123          (echo "*** You need to install xmlto ***"; \
 124           exit 1)
 125         @rm -rf $@ $(patsubst %.html,%,$@)
 126         $(call cmd,db2html)
 127         @if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \
 128             cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi
 129
 130 quiet_cmd_db2man = XMLTO   $@
 131       cmd_db2man = if grep -q refentry $<; then xmlto man $(XMLTOFLAGS) -o $(obj)/man $< ; gzip -f $(obj)/man/*.9; fi
 132 %.9 : %.xml
 133         @(which xmlto > /dev/null 2>&1) || \
 134          (echo "*** You need to install xmlto ***"; \
 135           exit 1)
 136         $(call cmd,db2man)
 137         @touch $@
 138
 139 ###
 140 # Rules to generate postscripts and PNG imgages from .fig format files
 141 quiet_cmd_fig2eps = FIG2EPS $@
 142       cmd_fig2eps = fig2dev -Leps $< $@
 143
 144 %.eps: %.fig
 145         @(which fig2dev > /dev/null 2>&1) || \
 146          (echo "*** You need to install transfig ***"; \
 147           exit 1)
 148         $(call cmd,fig2eps)
 149
 150 quiet_cmd_fig2png = FIG2PNG $@
 151       cmd_fig2png = fig2dev -Lpng $< $@
 152
 153 %.png: %.fig
 154         @(which fig2dev > /dev/null 2>&1) || \
 155          (echo "*** You need to install transfig ***"; \
 156           exit 1)
 157         $(call cmd,fig2png)
 158
 159 ###
 160 # Rule to convert a .c file to inline XML documentation
 161 %.xml: %.c
 162         @echo '  GEN     $@'
 163         @(                            \
 164            echo "<programlisting>";   \
 165            expand --tabs=8 < $< |     \
 166            sed -e "s/&/\\&amp;/g"     \
 167                -e "s/</\\&lt;/g"      \
 168                -e "s/>/\\&gt;/g";     \
 169            echo "</programlisting>")  > $@
 170
 171 ###
 172 # Help targets as used by the top-level makefile
 173 dochelp:
 174         @echo  '  Linux kernel internal documentation in different formats:'
 175         @echo  '  xmldocs (XML DocBook), psdocs (Postscript), pdfdocs (PDF)'
 176         @echo  '  htmldocs (HTML), mandocs (man pages, use installmandocs to install)'
 177
 178 ###
 179 # Temporary files left by various tools
 180 clean-files := $(DOCBOOKS) \
 181         $(patsubst %.xml, %.dvi,  $(DOCBOOKS)) \
 182         $(patsubst %.xml, %.aux,  $(DOCBOOKS)) \
 183         $(patsubst %.xml, %.tex,  $(DOCBOOKS)) \
 184         $(patsubst %.xml, %.log,  $(DOCBOOKS)) \
 185         $(patsubst %.xml, %.out,  $(DOCBOOKS)) \
 186         $(patsubst %.xml, %.ps,   $(DOCBOOKS)) \
 187         $(patsubst %.xml, %.pdf,  $(DOCBOOKS)) \
 188         $(patsubst %.xml, %.html, $(DOCBOOKS)) \
 189         $(patsubst %.xml, %.9,    $(DOCBOOKS)) \
 190         $(C-procfs-example)
 191
 192 clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS))
 193
 194 #man put files in man subdir - traverse down
 195 subdir- := man/