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 = . 22DOCS_THEME = 23DOCS_CSS = 24_SPHINXDIRS = $(sort $(patsubst $(srctree)/Documentation/%/index.rst,%,$(wildcard $(srctree)/Documentation/*/index.rst))) 25SPHINX_CONF = conf.py 26PAPER = 27BUILDDIR = $(obj)/output 28PDFLATEX = xelatex 29LATEXOPTS = -interaction=batchmode -no-shell-escape 30 31ifeq ($(findstring 1, $(KBUILD_VERBOSE)),) 32SPHINXOPTS += "-q" 33endif 34 35# User-friendly check for sphinx-build 36HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi) 37 38ifeq ($(HAVE_SPHINX),0) 39 40.DEFAULT: 41 $(warning The '$(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 '$(SPHINXBUILD)' executable.) 42 @echo 43 @$(srctree)/scripts/sphinx-pre-install 44 @echo " SKIP Sphinx $@ target." 45 46else # HAVE_SPHINX 47 48# User-friendly check for pdflatex and latexmk 49HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi) 50HAVE_LATEXMK := $(shell if which latexmk >/dev/null 2>&1; then echo 1; else echo 0; fi) 51 52ifeq ($(HAVE_LATEXMK),1) 53 PDFLATEX := latexmk -$(PDFLATEX) 54endif #HAVE_LATEXMK 55 56# Internal variables. 57PAPEROPT_a4 = -D latex_paper_size=a4 58PAPEROPT_letter = -D latex_paper_size=letter 59KERNELDOC = $(srctree)/scripts/kernel-doc 60KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC) 61ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) 62ifneq ($(wildcard $(srctree)/.config),) 63ifeq ($(CONFIG_RUST),y) 64 # Let Sphinx know we will include rustdoc 65 ALLSPHINXOPTS += -t rustdoc 66endif 67endif 68# the i18n builder cannot share the environment and doctrees with the others 69I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) . 70 71# commands; the 'cmd' from scripts/Kbuild.include is not *loopable* 72loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit; 73 74# $2 sphinx builder e.g. "html" 75# $3 name of the build subfolder / e.g. "userspace-api/media", used as: 76# * dest folder relative to $(BUILDDIR) and 77# * cache folder relative to $(BUILDDIR)/.doctrees 78# $4 dest subfolder e.g. "man" for man pages at userspace-api/media/man 79# $5 reST source folder relative to $(srctree)/$(src), 80# e.g. "userspace-api/media" for the linux-tv book-set at ./Documentation/userspace-api/media 81 82quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4) 83 cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media $2 && \ 84 PYTHONDONTWRITEBYTECODE=1 \ 85 BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF)) \ 86 $(PYTHON3) $(srctree)/scripts/jobserver-exec \ 87 $(CONFIG_SHELL) $(srctree)/Documentation/sphinx/parallel-wrapper.sh \ 88 $(SPHINXBUILD) \ 89 -b $2 \ 90 -c $(abspath $(srctree)/$(src)) \ 91 -d $(abspath $(BUILDDIR)/.doctrees/$3) \ 92 -D version=$(KERNELVERSION) -D release=$(KERNELRELEASE) \ 93 $(ALLSPHINXOPTS) \ 94 $(abspath $(srctree)/$(src)/$5) \ 95 $(abspath $(BUILDDIR)/$3/$4) && \ 96 if [ "x$(DOCS_CSS)" != "x" ]; then \ 97 cp $(if $(patsubst /%,,$(DOCS_CSS)),$(abspath $(srctree)/$(DOCS_CSS)),$(DOCS_CSS)) $(BUILDDIR)/$3/_static/; \ 98 fi 99 100htmldocs: 101 @$(srctree)/scripts/sphinx-pre-install --version-check 102 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var))) 103 104# If Rust support is available and .config exists, add rustdoc generated contents. 105# If there are any, the errors from this make rustdoc will be displayed but 106# won't stop the execution of htmldocs 107 108ifneq ($(wildcard $(srctree)/.config),) 109ifeq ($(CONFIG_RUST),y) 110 $(Q)$(MAKE) rustdoc || true 111endif 112endif 113 114texinfodocs: 115 @$(srctree)/scripts/sphinx-pre-install --version-check 116 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,texinfo,$(var),texinfo,$(var))) 117 118# Note: the 'info' Make target is generated by sphinx itself when 119# running the texinfodocs target define above. 120infodocs: texinfodocs 121 $(MAKE) -C $(BUILDDIR)/texinfo info 122 123linkcheckdocs: 124 @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var))) 125 126latexdocs: 127 @$(srctree)/scripts/sphinx-pre-install --version-check 128 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var))) 129 130ifeq ($(HAVE_PDFLATEX),0) 131 132pdfdocs: 133 $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.) 134 @echo " SKIP Sphinx $@ target." 135 136else # HAVE_PDFLATEX 137 138pdfdocs: latexdocs 139 @$(srctree)/scripts/sphinx-pre-install --version-check 140 $(foreach var,$(SPHINXDIRS), \ 141 $(MAKE) PDFLATEX="$(PDFLATEX)" LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit; \ 142 mkdir -p $(BUILDDIR)/$(var)/pdf; \ 143 mv $(subst .tex,.pdf,$(wildcard $(BUILDDIR)/$(var)/latex/*.tex)) $(BUILDDIR)/$(var)/pdf/; \ 144 ) 145 146endif # HAVE_PDFLATEX 147 148epubdocs: 149 @$(srctree)/scripts/sphinx-pre-install --version-check 150 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var))) 151 152xmldocs: 153 @$(srctree)/scripts/sphinx-pre-install --version-check 154 @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var))) 155 156endif # HAVE_SPHINX 157 158# The following targets are independent of HAVE_SPHINX, and the rules should 159# work or silently pass without Sphinx. 160 161refcheckdocs: 162 $(Q)cd $(srctree);scripts/documentation-file-ref-check 163 164cleandocs: 165 $(Q)rm -rf $(BUILDDIR) 166 $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media clean 167 168dochelp: 169 @echo ' Linux kernel internal documentation in different formats from ReST:' 170 @echo ' htmldocs - HTML' 171 @echo ' texinfodocs - Texinfo' 172 @echo ' infodocs - Info' 173 @echo ' latexdocs - LaTeX' 174 @echo ' pdfdocs - PDF' 175 @echo ' epubdocs - EPUB' 176 @echo ' xmldocs - XML' 177 @echo ' linkcheckdocs - check for broken external links' 178 @echo ' (will connect to external hosts)' 179 @echo ' refcheckdocs - check for references to non-existing files under' 180 @echo ' Documentation' 181 @echo ' cleandocs - clean all generated files' 182 @echo 183 @echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2' 184 @echo ' valid values for SPHINXDIRS are: $(_SPHINXDIRS)' 185 @echo 186 @echo ' make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build' 187 @echo ' configuration. This is e.g. useful to build with nit-picking config.' 188 @echo 189 @echo ' make DOCS_THEME={sphinx-theme} selects a different Sphinx theme.' 190 @echo 191 @echo ' make DOCS_CSS={a .css file} adds a DOCS_CSS override file for html/epub output.' 192 @echo 193 @echo ' Default location for the generated documents is Documentation/output' 194