2 # Makefile for Sphinx documentation
6 subdir- := devicetree/bindings
8 # Check for broken documentation file references
9 ifeq ($(CONFIG_WARN_MISSING_DOCUMENTS),y)
10 $(shell $(srctree)/scripts/documentation-file-ref-check --warn)
13 # You can set these variables from the command line.
14 SPHINXBUILD = sphinx-build
17 _SPHINXDIRS = $(sort $(patsubst $(srctree)/Documentation/%/index.rst,%,$(wildcard $(srctree)/Documentation/*/index.rst)))
20 BUILDDIR = $(obj)/output
22 LATEXOPTS = -interaction=batchmode
24 # User-friendly check for sphinx-build
25 HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)
27 ifeq ($(HAVE_SPHINX),0)
30 $(warning The '$(SPHINXBUILD)' command was not found. Make sure you have Sphinx installed and in PATH, or set the SPHINXBUILD make variable to point to the full path of the '$(SPHINXBUILD)' executable.)
32 @$(srctree)/scripts/sphinx-pre-install
33 @echo " SKIP Sphinx $@ target."
37 # User-friendly check for pdflatex and latexmk
38 HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi)
39 HAVE_LATEXMK := $(shell if which latexmk >/dev/null 2>&1; then echo 1; else echo 0; fi)
41 ifeq ($(HAVE_LATEXMK),1)
42 PDFLATEX := latexmk -$(PDFLATEX)
46 PAPEROPT_a4 = -D latex_paper_size=a4
47 PAPEROPT_letter = -D latex_paper_size=letter
48 KERNELDOC = $(srctree)/scripts/kernel-doc
49 KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC)
50 ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)
51 # the i18n builder cannot share the environment and doctrees with the others
52 I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .
54 # commands; the 'cmd' from scripts/Kbuild.include is not *loopable*
55 loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit;
57 # $2 sphinx builder e.g. "html"
58 # $3 name of the build subfolder / e.g. "media", used as:
59 # * dest folder relative to $(BUILDDIR) and
60 # * cache folder relative to $(BUILDDIR)/.doctrees
61 # $4 dest subfolder e.g. "man" for man pages at media/man
62 # $5 reST source folder relative to $(srctree)/$(src),
63 # e.g. "media" for the linux-tv book-set at ./Documentation/media
65 quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4)
66 cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media $2 && \
67 PYTHONDONTWRITEBYTECODE=1 \
68 BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \
69 $(PYTHON) $(srctree)/scripts/jobserver-exec \
70 $(SHELL) $(srctree)/Documentation/sphinx/parallel-wrapper.sh \
73 -c $(abspath $(srctree)/$(src)) \
74 -d $(abspath $(BUILDDIR)/.doctrees/$3) \
75 -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \
77 $(abspath $(srctree)/$(src)/$5) \
78 $(abspath $(BUILDDIR)/$3/$4)
81 @$(srctree)/scripts/sphinx-pre-install --version-check
82 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))
85 @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))
88 @$(srctree)/scripts/sphinx-pre-install --version-check
89 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var)))
91 ifeq ($(HAVE_PDFLATEX),0)
94 $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.)
95 @echo " SKIP Sphinx $@ target."
100 @$(srctree)/scripts/sphinx-pre-install --version-check
101 $(foreach var,$(SPHINXDIRS), $(MAKE) PDFLATEX="$(PDFLATEX)" LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit;)
103 endif # HAVE_PDFLATEX
106 @$(srctree)/scripts/sphinx-pre-install --version-check
107 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var)))
110 @$(srctree)/scripts/sphinx-pre-install --version-check
111 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var)))
115 # The following targets are independent of HAVE_SPHINX, and the rules should
116 # work or silently pass without Sphinx.
119 $(Q)cd $(srctree);scripts/documentation-file-ref-check
122 $(Q)rm -rf $(BUILDDIR)
123 $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media clean
126 @echo ' Linux kernel internal documentation in different formats from ReST:'
127 @echo ' htmldocs - HTML'
128 @echo ' latexdocs - LaTeX'
129 @echo ' pdfdocs - PDF'
130 @echo ' epubdocs - EPUB'
131 @echo ' xmldocs - XML'
132 @echo ' linkcheckdocs - check for broken external links'
133 @echo ' (will connect to external hosts)'
134 @echo ' refcheckdocs - check for references to non-existing files under'
135 @echo ' Documentation'
136 @echo ' cleandocs - clean all generated files'
138 @echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2'
139 @echo ' valid values for SPHINXDIRS are: $(_SPHINXDIRS)'
141 @echo ' make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build'
142 @echo ' configuration. This is e.g. useful to build with nit-picking config.'
144 @echo ' Default location for the generated documents is Documentation/output'