Documentation / Makefile


Based on kernel version 5.14. Page generated on 2021-08-31 10:40 EST.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157
# -*- 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 \
	$(CONFIG_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'