linux-yocto/Documentation/Makefile

-- makefile --

Makefile for Sphinx documentation

for cleaning

subdir- := devicetree/bindings

Check for broken documentation file references

ifeq ($(CONFIG_WARN_MISSING_DOCUMENTS),y) $(shell $(srctree)/scripts/documentation-file-ref-check --warn) endif

Check for broken ABI files

ifeq ($(CONFIG_WARN_ABI_ERRORS),y) $(shell $(srctree)/scripts/get_abi.pl validate --dir $(srctree)/Documentation/ABI) endif

You can set these variables from the command line.

SPHINXBUILD = sphinx-build SPHINXOPTS = SPHINXDIRS = . _SPHINXDIRS = $(sort $(patsubst $(srctree)/Documentation/%/index.rst,%,$(wildcard $(srctree)/Documentation/*/index.rst))) SPHINX_CONF = conf.py PAPER = BUILDDIR = $(obj)/output PDFLATEX = xelatex LATEXOPTS = -interaction=batchmode

ifeq ($(KBUILD_VERBOSE),0) SPHINXOPTS += "-q" endif

User-friendly check for sphinx-build

HAVE_SPHINX := $(shell if which $(SPHINXBUILD) >/dev/null 2>&1; then echo 1; else echo 0; fi)

ifeq ($(HAVE_SPHINX),0)

.DEFAULT: $(warning The '$(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 '$(SPHINXBUILD)' executable.) @echo @$(srctree)/scripts/sphinx-pre-install @echo " SKIP Sphinx $@ target."

else # HAVE_SPHINX

User-friendly check for pdflatex and latexmk

HAVE_PDFLATEX := $(shell if which $(PDFLATEX) >/dev/null 2>&1; then echo 1; else echo 0; fi) HAVE_LATEXMK := $(shell if which latexmk >/dev/null 2>&1; then echo 1; else echo 0; fi)

ifeq ($(HAVE_LATEXMK),1) PDFLATEX := latexmk -$(PDFLATEX) endif #HAVE_LATEXMK

Internal variables.

PAPEROPT_a4 = -D latex_paper_size=a4 PAPEROPT_letter = -D latex_paper_size=letter KERNELDOC = $(srctree)/scripts/kernel-doc KERNELDOC_CONF = -D kerneldoc_srctree=$(srctree) -D kerneldoc_bin=$(KERNELDOC) ALLSPHINXOPTS = $(KERNELDOC_CONF) $(PAPEROPT_$(PAPER)) $(SPHINXOPTS)

the i18n builder cannot share the environment and doctrees with the others

I18NSPHINXOPTS = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) .

commands; the 'cmd' from scripts/Kbuild.include is not loopable

loop_cmd = $(echo-cmd) $(cmd_$(1)) || exit;

$2 sphinx builder e.g. "html"

$3 name of the build subfolder / e.g. "userspace-api/media", used as:

* dest folder relative to $(BUILDDIR) and

* cache folder relative to $(BUILDDIR)/.doctrees

$4 dest subfolder e.g. "man" for man pages at userspace-api/media/man

$5 reST source folder relative to $(srctree)/$(src),

e.g. "userspace-api/media" for the linux-tv book-set at ./Documentation/userspace-api/media

quiet_cmd_sphinx = SPHINX $@ --> file://$(abspath $(BUILDDIR)/$3/$4) cmd_sphinx = $(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media $2 &&
PYTHONDONTWRITEBYTECODE=1
BUILDDIR=$(abspath $(BUILDDIR)) SPHINX_CONF=$(abspath $(srctree)/$(src)/$5/$(SPHINX_CONF))
$(PYTHON3) $(srctree)/scripts/jobserver-exec
$(SHELL) $(srctree)/Documentation/sphinx/parallel-wrapper.sh
$(SPHINXBUILD)
-b $2
-c $(abspath $(srctree)/$(src))
-d $(abspath $(BUILDDIR)/.doctrees/$3)
-D version=$(KERNELVERSION) -D release=$(KERNELRELEASE)
$(ALLSPHINXOPTS)
$(abspath $(srctree)/$(src)/$5)
$(abspath $(BUILDDIR)/$3/$4)

htmldocs: @$(srctree)/scripts/sphinx-pre-install --version-check @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,html,$(var),,$(var)))

linkcheckdocs: @$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,linkcheck,$(var),,$(var)))

latexdocs: @$(srctree)/scripts/sphinx-pre-install --version-check @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,latex,$(var),latex,$(var)))

ifeq ($(HAVE_PDFLATEX),0)

pdfdocs: $(warning The '$(PDFLATEX)' command was not found. Make sure you have it installed and in PATH to produce PDF output.) @echo " SKIP Sphinx $@ target."

else # HAVE_PDFLATEX

pdfdocs: latexdocs @$(srctree)/scripts/sphinx-pre-install --version-check $(foreach var,$(SPHINXDIRS),
$(MAKE) PDFLATEX="$(PDFLATEX)" LATEXOPTS="$(LATEXOPTS)" -C $(BUILDDIR)/$(var)/latex || exit;
mkdir -p $(BUILDDIR)/$(var)/pdf;
mv $(subst .tex,.pdf,$(wildcard $(BUILDDIR)/$(var)/latex/*.tex)) $(BUILDDIR)/$(var)/pdf/;
)

endif # HAVE_PDFLATEX

epubdocs: @$(srctree)/scripts/sphinx-pre-install --version-check @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,epub,$(var),epub,$(var)))

xmldocs: @$(srctree)/scripts/sphinx-pre-install --version-check @+$(foreach var,$(SPHINXDIRS),$(call loop_cmd,sphinx,xml,$(var),xml,$(var)))

endif # HAVE_SPHINX

The following targets are independent of HAVE_SPHINX, and the rules should

work or silently pass without Sphinx.

refcheckdocs: $(Q)cd $(srctree);scripts/documentation-file-ref-check

cleandocs: $(Q)rm -rf $(BUILDDIR) $(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/userspace-api/media clean

dochelp: @echo ' Linux kernel internal documentation in different formats from ReST:' @echo ' htmldocs - HTML' @echo ' latexdocs - LaTeX' @echo ' pdfdocs - PDF' @echo ' epubdocs - EPUB' @echo ' xmldocs - XML' @echo ' linkcheckdocs - check for broken external links' @echo ' (will connect to external hosts)' @echo ' refcheckdocs - check for references to non-existing files under' @echo ' Documentation' @echo ' cleandocs - clean all generated files' @echo @echo ' make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2' @echo ' valid values for SPHINXDIRS are: $(_SPHINXDIRS)' @echo @echo ' make SPHINX_CONF={conf-file} [target] use additional sphinx-build' @echo ' configuration. This is e.g. useful to build with nit-picking config.' @echo @echo ' Default location for the generated documents is Documentation/output'