1# -*- makefile -*- 2# Makefile for Sphinx documentation 3# 4 5# for cleaning 6subdir- := devicetree/bindings 7 8# Check for broken documentation file references 9ifeq ($(CONFIG_WARN_MISSING_DOCUMENTS),y) 10$(shell $(srctree)/scripts/documentation-file-ref-check --warn) 11endif 12 13# Check for broken ABI files 14ifeq ($(CONFIG_WARN_ABI_ERRORS),y) 15$(shell $(srctree)/scripts/get_abi.pl validate --dir $(srctree)/Documentation/ABI) 16endif 17 18# You can set these variables from the command line. 19SPHINXBUILD = sphinx-build 20SPHINXOPTS = 21SPHINXDIRS = . 22_SPHINXDIRS = $(sort $(patsubst $(srctree)/Documentation/%/index.rst,%,$(wildcard $(srctree)/Documentation/*/index.rst))) 23SPHINX_CONF = conf.py 24PAPER = 25BUILDDIR = $(obj)/output 26PDFLATEX = xelatex 27LATEXOPTS = -interaction=batchmode 28 29ifeq ($(KBUILD_VERBOSE),0) 30SPHINXOPTS += "-q" 31endif 32 33# User-friendly check for sphinx-build 34HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi) 35 36ifeq ($(HAVE_SPHINX),0) 37 38.DEFAULT: 39 $(warning The '$(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 '$(SPHINXBUILD)' executable.) 40 @echo 41 @$(srctree)/scripts/sphinx-pre-install 42 @echo " SKIP Sphinx $@ target." 43 44else # HAVE_SPHINX 45 46# User-friendly check for pdflatex and latexmk 47HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi) 48HAVE_LATEXMK := $(shell if which latexmk >/dev/null 2>&1; then echo 1; else echo 0; fi) 49 50ifeq ($(HAVE_LATEXMK),1) 51 PDFLATEX := latexmk -$(PDFLATEX) 52endif #HAVE_LATEXMK 53 54# Internal variables. 55PAPEROPT_a4 = -D latex_paper_size=a4 56PAPEROPT_letter = -D latex_paper_size=letter 57KERNELDOC = $(srctree)/scripts/kernel-doc 58KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC) 59ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) 60# the i18n builder cannot share the environment and doctrees with the others 61I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) . 62 63# commands; the 'cmd' from scripts/Kbuild.include is not *loopable* 64loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit; 65 66# $2 sphinx builder e.g. "html" 67# $3 name of the build subfolder / e.g. "userspace-api/media", used as: 68# * dest folder relative to $(BUILDDIR) and 69# * cache folder relative to $(BUILDDIR)/.doctrees 70# $4 dest subfolder e.g. "man" for man pages at userspace-api/media/man 71# $5 reST source folder relative to $(srctree)/$(src), 72# e.g. "userspace-api/media" for the linux-tv book-set at ./Documentation/userspace-api/media 73 74quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4) 75 cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media $2 && \ 76 PYTHONDONTWRITEBYTECODE=1 \ 77 BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \ 78 $(PYTHON3) $(srctree)/scripts/jobserver-exec \ 79 $(CONFIG_SHELL) $(srctree)/Documentation/sphinx/parallel-wrapper.sh \ 80 $(SPHINXBUILD) \ 81 -b $2 \ 82 -c $(abspath $(srctree)/$(src)) \ 83 -d $(abspath $(BUILDDIR)/.doctrees/$3) \ 84 -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \ 85 $(ALLSPHINXOPTS) \ 86 $(abspath $(srctree)/$(src)/$5) \ 87 $(abspath $(BUILDDIR)/$3/$4) 88 89htmldocs: 90 @$(srctree)/scripts/sphinx-pre-install --version-check 91 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var))) 92 93linkcheckdocs: 94 @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var))) 95 96latexdocs: 97 @$(srctree)/scripts/sphinx-pre-install --version-check 98 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var))) 99 100ifeq ($(HAVE_PDFLATEX),0) 101 102pdfdocs: 103 $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.) 104 @echo " SKIP Sphinx $@ target." 105 106else # HAVE_PDFLATEX 107 108pdfdocs: latexdocs 109 @$(srctree)/scripts/sphinx-pre-install --version-check 110 $(foreach var,$(SPHINXDIRS), \ 111 $(MAKE) PDFLATEX="$(PDFLATEX)" LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit; \ 112 mkdir -p $(BUILDDIR)/$(var)/pdf; \ 113 mv $(subst .tex,.pdf,$(wildcard $(BUILDDIR)/$(var)/latex/*.tex)) $(BUILDDIR)/$(var)/pdf/; \ 114 ) 115 116endif # HAVE_PDFLATEX 117 118epubdocs: 119 @$(srctree)/scripts/sphinx-pre-install --version-check 120 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var))) 121 122xmldocs: 123 @$(srctree)/scripts/sphinx-pre-install --version-check 124 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var))) 125 126endif # HAVE_SPHINX 127 128# The following targets are independent of HAVE_SPHINX, and the rules should 129# work or silently pass without Sphinx. 130 131refcheckdocs: 132 $(Q)cd $(srctree);scripts/documentation-file-ref-check 133 134cleandocs: 135 $(Q)rm -rf $(BUILDDIR) 136 $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media clean 137 138dochelp: 139 @echo ' Linux kernel internal documentation in different formats from ReST:' 140 @echo ' htmldocs - HTML' 141 @echo ' latexdocs - LaTeX' 142 @echo ' pdfdocs - PDF' 143 @echo ' epubdocs - EPUB' 144 @echo ' xmldocs - XML' 145 @echo ' linkcheckdocs - check for broken external links' 146 @echo ' (will connect to external hosts)' 147 @echo ' refcheckdocs - check for references to non-existing files under' 148 @echo ' Documentation' 149 @echo ' cleandocs - clean all generated files' 150 @echo 151 @echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2' 152 @echo ' valid values for SPHINXDIRS are: $(_SPHINXDIRS)' 153 @echo 154 @echo ' make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build' 155 @echo ' configuration. This is e.g. useful to build with nit-picking config.' 156 @echo 157 @echo ' Default location for the generated documents is Documentation/output' 158