Generating man files currently requires running a separate
script. The target also doesn't appear at the docs Makefile.
Add support for mandocs at the Makefile, adding the build
logic inside sphinx-build-wrapper, updating documentation
and dropping the ancillary script.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
Documentation/Makefile | 3 +-
Documentation/doc-guide/kernel-doc.rst | 29 ++++-----
Makefile | 2 +-
scripts/split-man.pl | 28 ---------
tools/docs/sphinx-build-wrapper | 81 ++++++++++++++++++++++++--
5 files changed, 95 insertions(+), 48 deletions(-)
delete mode 100755 scripts/split-man.pl
diff --git a/Documentation/Makefile b/Documentation/Makefile
index 05397b9d844d..aa42b2cb7030 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -53,7 +53,7 @@ ifeq ($(HAVE_SPHINX),0)
else # HAVE_SPHINX
# Common documentation targets
-infodocs texinfodocs latexdocs epubdocs xmldocs pdfdocs linkcheckdocs:
+mandocs infodocs texinfodocs latexdocs epubdocs xmldocs pdfdocs linkcheckdocs:
$(Q)@$(srctree)/tools/docs/sphinx-pre-install --version-check
+$(Q)$(PYTHON3) $(BUILD_WRAPPER) $@ \
--sphinxdirs="$(SPHINXDIRS)" --conf="$(SPHINX_CONF)" \
@@ -104,6 +104,7 @@ dochelp:
@echo ' htmldocs - HTML'
@echo ' texinfodocs - Texinfo'
@echo ' infodocs - Info'
+ @echo ' mandocs - Man pages'
@echo ' latexdocs - LaTeX'
@echo ' pdfdocs - PDF'
@echo ' epubdocs - EPUB'
diff --git a/Documentation/doc-guide/kernel-doc.rst b/Documentation/doc-guide/kernel-doc.rst
index af9697e60165..4370cc8fbcf5 100644
--- a/Documentation/doc-guide/kernel-doc.rst
+++ b/Documentation/doc-guide/kernel-doc.rst
@@ -579,20 +579,23 @@ source.
How to use kernel-doc to generate man pages
-------------------------------------------
-If you just want to use kernel-doc to generate man pages you can do this
-from the kernel git tree::
+To generate man pages for all files that contain kernel-doc markups, run::
- $ scripts/kernel-doc -man \
- $(git grep -l '/\*\*' -- :^Documentation :^tools) \
- | scripts/split-man.pl /tmp/man
+ $ make mandocs
-Some older versions of git do not support some of the variants of syntax for
-path exclusion. One of the following commands may work for those versions::
+Or calling ``script-build-wrapper`` directly::
- $ scripts/kernel-doc -man \
- $(git grep -l '/\*\*' -- . ':!Documentation' ':!tools') \
- | scripts/split-man.pl /tmp/man
+ $ ./tools/docs/sphinx-build-wrapper mandocs
- $ scripts/kernel-doc -man \
- $(git grep -l '/\*\*' -- . ":(exclude)Documentation" ":(exclude)tools") \
- | scripts/split-man.pl /tmp/man
+The output will be at ``/man`` directory inside the output directory
+(by default: ``Documentation/output``).
+
+Optionally, it is possible to generate a partial set of man pages by
+using SPHINXDIRS:
+
+ $ make SPHINXDIRS=driver-api/media mandocs
+
+.. note::
+
+ When SPHINXDIRS={subdir} is used, it will only generate man pages for
+ the files explicitly inside a ``Documentation/{subdir}/.../*.rst`` file.
diff --git a/Makefile b/Makefile
index 6bfe776bf3c5..9bd44afeda26 100644
--- a/Makefile
+++ b/Makefile
@@ -1800,7 +1800,7 @@ $(help-board-dirs): help-%:
# Documentation targets
# ---------------------------------------------------------------------------
DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
- linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
+ linkcheckdocs dochelp refcheckdocs texinfodocs infodocs mandocs
PHONY += $(DOC_TARGETS)
$(DOC_TARGETS):
$(Q)$(MAKE) $(build)=Documentation $@
diff --git a/scripts/split-man.pl b/scripts/split-man.pl
deleted file mode 100755
index 96bd99dc977a..000000000000
--- a/scripts/split-man.pl
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env perl
-# SPDX-License-Identifier: GPL-2.0
-#
-# Author: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
-#
-# Produce manpages from kernel-doc.
-# See Documentation/doc-guide/kernel-doc.rst for instructions
-
-if ($#ARGV < 0) {
- die "where do I put the results?\n";
-}
-
-mkdir $ARGV[0],0777;
-$state = 0;
-while (<STDIN>) {
- if (/^\.TH \"[^\"]*\" 9 \"([^\"]*)\"/) {
- if ($state == 1) { close OUT }
- $state = 1;
- $fn = "$ARGV[0]/$1.9";
- print STDERR "Creating $fn\n";
- open OUT, ">$fn" or die "can't open $fn: $!\n";
- print OUT $_;
- } elsif ($state != 0) {
- print OUT $_;
- }
-}
-
-close OUT;
diff --git a/tools/docs/sphinx-build-wrapper b/tools/docs/sphinx-build-wrapper
index 8d1f77c4a880..7a6eb41837e6 100755
--- a/tools/docs/sphinx-build-wrapper
+++ b/tools/docs/sphinx-build-wrapper
@@ -47,12 +47,14 @@ the newer version.
import argparse
import locale
import os
+import re
import shlex
import shutil
import subprocess
import sys
from concurrent import futures
+from glob import glob
from lib.python_version import PythonVersion
from lib.latex_fonts import LatexFontChecker
@@ -77,6 +79,7 @@ TARGETS = {
"epubdocs": { "builder": "epub", "out_dir": "epub" },
"texinfodocs": { "builder": "texinfo", "out_dir": "texinfo" },
"infodocs": { "builder": "texinfo", "out_dir": "texinfo" },
+ "mandocs": { "builder": "man", "out_dir": "man" },
"latexdocs": { "builder": "latex", "out_dir": "latex" },
"pdfdocs": { "builder": "latex", "out_dir": "latex" },
"xmldocs": { "builder": "xml", "out_dir": "xml" },
@@ -503,6 +506,71 @@ class SphinxBuilder:
except subprocess.CalledProcessError as e:
sys.exit(f"Error generating info docs: {e}")
+ def handle_man(self, kerneldoc, docs_dir, src_dir, output_dir):
+ """
+ Create man pages from kernel-doc output
+ """
+
+ re_kernel_doc = re.compile(r"^\.\.\s+kernel-doc::\s*(\S+)")
+ re_man = re.compile(r'^\.TH "[^"]*" (\d+) "([^"]*)"')
+
+ if docs_dir == src_dir:
+ #
+ # Pick the entire set of kernel-doc markups from the entire tree
+ #
+ kdoc_files = set([self.srctree])
+ else:
+ kdoc_files = set()
+
+ for fname in glob(os.path.join(src_dir, "**"), recursive=True):
+ if os.path.isfile(fname) and fname.endswith(".rst"):
+ with open(fname, "r", encoding="utf-8") as in_fp:
+ data = in_fp.read()
+
+ for line in data.split("\n"):
+ match = re_kernel_doc.match(line)
+ if match:
+ if os.path.isfile(match.group(1)):
+ kdoc_files.add(match.group(1))
+
+ if not kdoc_files:
+ sys.exit(f"Directory {src_dir} doesn't contain kernel-doc tags")
+
+ cmd = [ kerneldoc, "-m" ] + sorted(kdoc_files)
+ try:
+ if self.verbose:
+ print(" ".join(cmd))
+
+ result = subprocess.run(cmd, stdout=subprocess.PIPE, text= True)
+
+ if result.returncode:
+ print(f"Warning: kernel-doc returned {result.returncode} warnings")
+
+ except (OSError, ValueError, subprocess.SubprocessError) as e:
+ sys.exit(f"Failed to create man pages for {src_dir}: {repr(e)}")
+
+ fp = None
+ try:
+ for line in result.stdout.split("\n"):
+ match = re_man.match(line)
+ if not match:
+ if fp:
+ fp.write(line + '\n')
+ continue
+
+ if fp:
+ fp.close()
+
+ fname = f"{output_dir}/{match.group(2)}.{match.group(1)}"
+
+ if self.verbose:
+ print(f"Creating {fname}")
+ fp = open(fname, "w", encoding="utf-8")
+ fp.write(line + '\n')
+ finally:
+ if fp:
+ fp.close()
+
def cleandocs(self, builder): # pylint: disable=W0613
"""Remove documentation output directory"""
shutil.rmtree(self.builddir, ignore_errors=True)
@@ -531,7 +599,7 @@ class SphinxBuilder:
# Other targets require sphinx-build, so check if it exists
#
sphinxbuild = shutil.which(self.sphinxbuild, path=self.env["PATH"])
- if not sphinxbuild:
+ if not sphinxbuild and target != "mandocs":
sys.exit(f"Error: {self.sphinxbuild} not found in PATH.\n")
if builder == "latex":
@@ -619,10 +687,13 @@ class SphinxBuilder:
output_dir,
]
- try:
- self.run_sphinx(sphinxbuild, build_args, env=self.env)
- except (OSError, ValueError, subprocess.SubprocessError) as e:
- sys.exit(f"Build failed: {repr(e)}")
+ if target == "mandocs":
+ self.handle_man(kerneldoc, docs_dir, src_dir, output_dir)
+ else:
+ try:
+ self.run_sphinx(sphinxbuild, build_args, env=self.env)
+ except (OSError, ValueError, subprocess.SubprocessError) as e:
+ sys.exit(f"Build failed: {repr(e)}")
#
# Ensure that each html/epub output will have needed static files
--
2.51.0Please note that @kernel.org receipients are still not addressed
correctly:
> Date: Thu, 18 Sep 2025 13:54:53 +0200
> From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> To: Linux Doc Mailing List <linux-doc@vger.kernel.org>, Jonathan Corbet <corbet@lwn.net>
> Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>, Akira Yokosawa <akiyks@gmail.com>,
> Mauro Carvalho Chehab <mchehab+huawei@kernel.org>, Thomas Weißschuh <thomas.weissschuh@linutronix.de>,
> Alice Ryhl <aliceryhl@google.com>, Masahiro Yamada <mchehab+huawei@kernel.org>,
> Miguel Ojeda <mchehab+huawei@kernel.org>, Nathan Chancellor <mchehab+huawei@kernel.org>,
> Nicolas Schier <nicolas.schier@linux.dev>, Randy Dunlap <rdunlap@infradead.org>,
> Tamir Duberstein <tamird@gmail.com>, linux-kbuild@vger.kernel.org,
> linux-kernel@vger.kernel.org
On Thu, Sep 18, 2025 at 01:54:53PM +0200, Mauro Carvalho Chehab wrote:
> Generating man files currently requires running a separate
> script. The target also doesn't appear at the docs Makefile.
>
> Add support for mandocs at the Makefile, adding the build
> logic inside sphinx-build-wrapper, updating documentation
> and dropping the ancillary script.
>
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> ---
> Documentation/Makefile | 3 +-
> Documentation/doc-guide/kernel-doc.rst | 29 ++++-----
> Makefile | 2 +-
> scripts/split-man.pl | 28 ---------
> tools/docs/sphinx-build-wrapper | 81 ++++++++++++++++++++++++--
> 5 files changed, 95 insertions(+), 48 deletions(-)
> delete mode 100755 scripts/split-man.pl
>
> diff --git a/Documentation/Makefile b/Documentation/Makefile
> index 05397b9d844d..aa42b2cb7030 100644
> --- a/Documentation/Makefile
> +++ b/Documentation/Makefile
> @@ -53,7 +53,7 @@ ifeq ($(HAVE_SPHINX),0)
> else # HAVE_SPHINX
>
> # Common documentation targets
> -infodocs texinfodocs latexdocs epubdocs xmldocs pdfdocs linkcheckdocs:
> +mandocs infodocs texinfodocs latexdocs epubdocs xmldocs pdfdocs linkcheckdocs:
> $(Q)@$(srctree)/tools/docs/sphinx-pre-install --version-check
> +$(Q)$(PYTHON3) $(BUILD_WRAPPER) $@ \
> --sphinxdirs="$(SPHINXDIRS)" --conf="$(SPHINX_CONF)" \
> @@ -104,6 +104,7 @@ dochelp:
> @echo ' htmldocs - HTML'
> @echo ' texinfodocs - Texinfo'
> @echo ' infodocs - Info'
> + @echo ' mandocs - Man pages'
> @echo ' latexdocs - LaTeX'
> @echo ' pdfdocs - PDF'
> @echo ' epubdocs - EPUB'
> diff --git a/Documentation/doc-guide/kernel-doc.rst b/Documentation/doc-guide/kernel-doc.rst
> index af9697e60165..4370cc8fbcf5 100644
> --- a/Documentation/doc-guide/kernel-doc.rst
> +++ b/Documentation/doc-guide/kernel-doc.rst
> @@ -579,20 +579,23 @@ source.
> How to use kernel-doc to generate man pages
> -------------------------------------------
>
> -If you just want to use kernel-doc to generate man pages you can do this
> -from the kernel git tree::
> +To generate man pages for all files that contain kernel-doc markups, run::
>
> - $ scripts/kernel-doc -man \
> - $(git grep -l '/\*\*' -- :^Documentation :^tools) \
> - | scripts/split-man.pl /tmp/man
> + $ make mandocs
>
> -Some older versions of git do not support some of the variants of syntax for
> -path exclusion. One of the following commands may work for those versions::
> +Or calling ``script-build-wrapper`` directly::
For this very patch, there is no 'scripts-build-wrapper' but
'sphinx-build-wrapper'. Or am I missing something?
>
> - $ scripts/kernel-doc -man \
> - $(git grep -l '/\*\*' -- . ':!Documentation' ':!tools') \
> - | scripts/split-man.pl /tmp/man
> + $ ./tools/docs/sphinx-build-wrapper mandocs
>
> - $ scripts/kernel-doc -man \
> - $(git grep -l '/\*\*' -- . ":(exclude)Documentation" ":(exclude)tools") \
> - | scripts/split-man.pl /tmp/man
> +The output will be at ``/man`` directory inside the output directory
> +(by default: ``Documentation/output``).
> +
> +Optionally, it is possible to generate a partial set of man pages by
> +using SPHINXDIRS:
> +
> + $ make SPHINXDIRS=driver-api/media mandocs
> +
> +.. note::
> +
> + When SPHINXDIRS={subdir} is used, it will only generate man pages for
> + the files explicitly inside a ``Documentation/{subdir}/.../*.rst`` file.
> diff --git a/Makefile b/Makefile
> index 6bfe776bf3c5..9bd44afeda26 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1800,7 +1800,7 @@ $(help-board-dirs): help-%:
> # Documentation targets
> # ---------------------------------------------------------------------------
> DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
> - linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
> + linkcheckdocs dochelp refcheckdocs texinfodocs infodocs mandocs
> PHONY += $(DOC_TARGETS)
> $(DOC_TARGETS):
> $(Q)$(MAKE) $(build)=Documentation $@
Acked-by: Nicolas Schier <nsc@kernel.org>
Em Sat, 27 Sep 2025 22:35:00 +0200
Nicolas Schier <nsc@kernel.org> escreveu:
> Please note that @kernel.org receipients are still not addressed
> correctly:
>
> > Date: Thu, 18 Sep 2025 13:54:53 +0200
> > From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> > To: Linux Doc Mailing List <linux-doc@vger.kernel.org>, Jonathan Corbet <corbet@lwn.net>
> > Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>, Akira Yokosawa <akiyks@gmail.com>,
> > Mauro Carvalho Chehab <mchehab+huawei@kernel.org>, Thomas Weißschuh <thomas.weissschuh@linutronix.de>,
> > Alice Ryhl <aliceryhl@google.com>, Masahiro Yamada <mchehab+huawei@kernel.org>,
> > Miguel Ojeda <mchehab+huawei@kernel.org>, Nathan Chancellor <mchehab+huawei@kernel.org>,
> > Nicolas Schier <nicolas.schier@linux.dev>, Randy Dunlap <rdunlap@infradead.org>,
> > Tamir Duberstein <tamird@gmail.com>, linux-kbuild@vger.kernel.org,
> > linux-kernel@vger.kernel.org
Just Found the issue: the problem were on a rewrite rule
on my emailer which I added ages ago. Dropped it. It should
be ok next time.
> On Thu, Sep 18, 2025 at 01:54:53PM +0200, Mauro Carvalho Chehab wrote:
> > Generating man files currently requires running a separate
> > script. The target also doesn't appear at the docs Makefile.
> >
> > Add support for mandocs at the Makefile, adding the build
> > logic inside sphinx-build-wrapper, updating documentation
> > and dropping the ancillary script.
> >
> > Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> > ---
> > Documentation/Makefile | 3 +-
> > Documentation/doc-guide/kernel-doc.rst | 29 ++++-----
> > Makefile | 2 +-
> > scripts/split-man.pl | 28 ---------
> > tools/docs/sphinx-build-wrapper | 81 ++++++++++++++++++++++++--
> > 5 files changed, 95 insertions(+), 48 deletions(-)
> > delete mode 100755 scripts/split-man.pl
> >
> > diff --git a/Documentation/Makefile b/Documentation/Makefile
> > index 05397b9d844d..aa42b2cb7030 100644
> > --- a/Documentation/Makefile
> > +++ b/Documentation/Makefile
> > @@ -53,7 +53,7 @@ ifeq ($(HAVE_SPHINX),0)
> > else # HAVE_SPHINX
> >
> > # Common documentation targets
> > -infodocs texinfodocs latexdocs epubdocs xmldocs pdfdocs linkcheckdocs:
> > +mandocs infodocs texinfodocs latexdocs epubdocs xmldocs pdfdocs linkcheckdocs:
> > $(Q)@$(srctree)/tools/docs/sphinx-pre-install --version-check
> > +$(Q)$(PYTHON3) $(BUILD_WRAPPER) $@ \
> > --sphinxdirs="$(SPHINXDIRS)" --conf="$(SPHINX_CONF)" \
> > @@ -104,6 +104,7 @@ dochelp:
> > @echo ' htmldocs - HTML'
> > @echo ' texinfodocs - Texinfo'
> > @echo ' infodocs - Info'
> > + @echo ' mandocs - Man pages'
> > @echo ' latexdocs - LaTeX'
> > @echo ' pdfdocs - PDF'
> > @echo ' epubdocs - EPUB'
> > diff --git a/Documentation/doc-guide/kernel-doc.rst b/Documentation/doc-guide/kernel-doc.rst
> > index af9697e60165..4370cc8fbcf5 100644
> > --- a/Documentation/doc-guide/kernel-doc.rst
> > +++ b/Documentation/doc-guide/kernel-doc.rst
> > @@ -579,20 +579,23 @@ source.
> > How to use kernel-doc to generate man pages
> > -------------------------------------------
> >
> > -If you just want to use kernel-doc to generate man pages you can do this
> > -from the kernel git tree::
> > +To generate man pages for all files that contain kernel-doc markups, run::
> >
> > - $ scripts/kernel-doc -man \
> > - $(git grep -l '/\*\*' -- :^Documentation :^tools) \
> > - | scripts/split-man.pl /tmp/man
> > + $ make mandocs
> >
> > -Some older versions of git do not support some of the variants of syntax for
> > -path exclusion. One of the following commands may work for those versions::
> > +Or calling ``script-build-wrapper`` directly::
>
> For this very patch, there is no 'scripts-build-wrapper' but
> 'sphinx-build-wrapper'. Or am I missing something?
Sorry! yes, sphinx-build-wrapper is the right name.
>
> >
> > - $ scripts/kernel-doc -man \
> > - $(git grep -l '/\*\*' -- . ':!Documentation' ':!tools') \
> > - | scripts/split-man.pl /tmp/man
> > + $ ./tools/docs/sphinx-build-wrapper mandocs
> >
> > - $ scripts/kernel-doc -man \
> > - $(git grep -l '/\*\*' -- . ":(exclude)Documentation" ":(exclude)tools") \
> > - | scripts/split-man.pl /tmp/man
> > +The output will be at ``/man`` directory inside the output directory
> > +(by default: ``Documentation/output``).
> > +
> > +Optionally, it is possible to generate a partial set of man pages by
> > +using SPHINXDIRS:
> > +
> > + $ make SPHINXDIRS=driver-api/media mandocs
> > +
> > +.. note::
> > +
> > + When SPHINXDIRS={subdir} is used, it will only generate man pages for
> > + the files explicitly inside a ``Documentation/{subdir}/.../*.rst`` file.
> > diff --git a/Makefile b/Makefile
> > index 6bfe776bf3c5..9bd44afeda26 100644
> > --- a/Makefile
> > +++ b/Makefile
> > @@ -1800,7 +1800,7 @@ $(help-board-dirs): help-%:
> > # Documentation targets
> > # ---------------------------------------------------------------------------
> > DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
> > - linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
> > + linkcheckdocs dochelp refcheckdocs texinfodocs infodocs mandocs
> > PHONY += $(DOC_TARGETS)
> > $(DOC_TARGETS):
> > $(Q)$(MAKE) $(build)=Documentation $@
>
> Acked-by: Nicolas Schier <nsc@kernel.org>
Thanks!
Mauro
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