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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 \ | |
10 | kernel-hacking.xml kernel-locking.xml via-audio.xml \ | |
11 | deviceiobook.xml procfs-guide.xml tulip-user.xml \ | |
12 | writing_usb_driver.xml scsidrivers.xml sis900.xml \ | |
13 | kernel-api.xml journal-api.xml lsm.xml usb.xml \ | |
14 | gadget.xml libata.xml mtdnand.xml librs.xml | |
15 | ||
16 | ### | |
17 | # The build process is as follows (targets): | |
18 | # (xmldocs) | |
19 | # file.tmpl --> file.xml +--> file.ps (psdocs) | |
20 | # +--> file.pdf (pdfdocs) | |
21 | # +--> DIR=file (htmldocs) | |
22 | # +--> man/ (mandocs) | |
23 | ||
24 | ### | |
25 | # The targets that may be used. | |
26 | .PHONY: xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs | |
27 | ||
28 | BOOKS := $(addprefix $(obj)/,$(DOCBOOKS)) | |
29 | xmldocs: $(BOOKS) | |
30 | sgmldocs: xmldocs | |
31 | ||
32 | PS := $(patsubst %.xml, %.ps, $(BOOKS)) | |
33 | psdocs: $(PS) | |
34 | ||
35 | PDF := $(patsubst %.xml, %.pdf, $(BOOKS)) | |
36 | pdfdocs: $(PDF) | |
37 | ||
38 | HTML := $(patsubst %.xml, %.html, $(BOOKS)) | |
39 | htmldocs: $(HTML) | |
40 | ||
41 | MAN := $(patsubst %.xml, %.9, $(BOOKS)) | |
42 | mandocs: $(MAN) | |
43 | ||
44 | installmandocs: mandocs | |
45 | $(MAKEMAN) install Documentation/DocBook/man | |
46 | ||
47 | ### | |
48 | #External programs used | |
49 | KERNELDOC = scripts/kernel-doc | |
50 | DOCPROC = scripts/basic/docproc | |
51 | SPLITMAN = $(PERL) $(srctree)/scripts/split-man | |
52 | MAKEMAN = $(PERL) $(srctree)/scripts/makeman | |
53 | ||
54 | ### | |
55 | # DOCPROC is used for two purposes: | |
56 | # 1) To generate a dependency list for a .tmpl file | |
57 | # 2) To preprocess a .tmpl file and call kernel-doc with | |
58 | # appropriate parameters. | |
59 | # The following rules are used to generate the .xml documentation | |
60 | # required to generate the final targets. (ps, pdf, html). | |
61 | quiet_cmd_docproc = DOCPROC $@ | |
62 | cmd_docproc = SRCTREE=$(srctree)/ $(DOCPROC) doc $< >$@ | |
63 | define rule_docproc | |
64 | set -e; \ | |
65 | $(if $($(quiet)cmd_$(1)),echo ' $($(quiet)cmd_$(1))';) \ | |
66 | $(cmd_$(1)); \ | |
67 | ( \ | |
68 | echo 'cmd_$@ := $(cmd_$(1))'; \ | |
69 | echo $@: `SRCTREE=$(srctree) $(DOCPROC) depend $<`; \ | |
70 | ) > $(dir $@).$(notdir $@).cmd | |
71 | endef | |
72 | ||
73 | %.xml: %.tmpl FORCE | |
74 | $(call if_changed_rule,docproc) | |
75 | ||
76 | ### | |
77 | #Read in all saved dependency files | |
78 | cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd)) | |
79 | ||
80 | ifneq ($(cmd_files),) | |
81 | include $(cmd_files) | |
82 | endif | |
83 | ||
84 | ### | |
85 | # Changes in kernel-doc force a rebuild of all documentation | |
86 | $(BOOKS): $(KERNELDOC) | |
87 | ||
88 | ### | |
89 | # procfs guide uses a .c file as example code. | |
90 | # This requires an explicit dependency | |
91 | C-procfs-example = procfs_example.xml | |
92 | C-procfs-example2 = $(addprefix $(obj)/,$(C-procfs-example)) | |
93 | $(obj)/procfs-guide.xml: $(C-procfs-example2) | |
94 | ||
95 | ### | |
96 | # Rules to generate postscript, PDF and HTML | |
97 | # db2html creates a directory. Generate a html file used for timestamp | |
98 | ||
99 | quiet_cmd_db2ps = DB2PS $@ | |
100 | cmd_db2ps = db2ps -o $(dir $@) $< | |
101 | %.ps : %.xml | |
102 | @(which db2ps > /dev/null 2>&1) || \ | |
103 | (echo "*** You need to install DocBook stylesheets ***"; \ | |
104 | exit 1) | |
105 | $(call cmd,db2ps) | |
106 | ||
107 | quiet_cmd_db2pdf = DB2PDF $@ | |
108 | cmd_db2pdf = db2pdf -o $(dir $@) $< | |
109 | %.pdf : %.xml | |
110 | @(which db2pdf > /dev/null 2>&1) || \ | |
111 | (echo "*** You need to install DocBook stylesheets ***"; \ | |
112 | exit 1) | |
113 | $(call cmd,db2pdf) | |
114 | ||
115 | quiet_cmd_db2html = DB2HTML $@ | |
116 | cmd_db2html = db2html -o $(patsubst %.html,%,$@) $< && \ | |
117 | echo '<a HREF="$(patsubst %.html,%,$(notdir $@))/book1.html"> \ | |
118 | Goto $(patsubst %.html,%,$(notdir $@))</a><p>' > $@ | |
119 | ||
120 | %.html: %.xml | |
121 | @(which db2html > /dev/null 2>&1) || \ | |
122 | (echo "*** You need to install DocBook stylesheets ***"; \ | |
123 | exit 1) | |
124 | @rm -rf $@ $(patsubst %.html,%,$@) | |
125 | $(call cmd,db2html) | |
126 | @if [ ! -z "$(PNG-$(basename $(notdir $@)))" ]; then \ | |
127 | cp $(PNG-$(basename $(notdir $@))) $(patsubst %.html,%,$@); fi | |
128 | ||
129 | ### | |
130 | # Rule to generate man files - output is placed in the man subdirectory | |
131 | ||
132 | %.9: %.xml | |
133 | ifneq ($(KBUILD_SRC),) | |
134 | $(Q)mkdir -p $(objtree)/Documentation/DocBook/man | |
135 | endif | |
136 | $(SPLITMAN) $< $(objtree)/Documentation/DocBook/man "$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)" | |
137 | $(MAKEMAN) convert $(objtree)/Documentation/DocBook/man $< | |
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/&/\\&/g" \ | |
167 | -e "s/</\\</g" \ | |
168 | -e "s/>/\\>/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/ |