Changes in jobserver-exec

28019885a3fff013a3e3d0b4d2cd9df41e95658a - scripts/jobserver-exec: propagate child exit status

Wed, 27 May 2026 21:32:18 +0200

scripts/jobserver-exec: propagate child exit statusmain() called JobserverExec().run() and discarded its return value,then the script exited with the implicit status 0. As a result, anyMakefile that wired a build step through jobserver-exec saw the stepsilently succeed even when the wrapped command had failed.Two in-tree callers were affected: Documentation/devicetree/bindings/Makefile cmd_chk_style runs a python checker via jobserver-exec and uses "&& touch $@ || true" so failures leave the stamp file untouched and the next make rerun reports them again. The swallowed exit code made the stamp file get created even on failure, caching the failed run and hiding the reported issues until the inputs change. scripts/Makefile.vmlinux_o cmd_gen_initcalls_lds runs scripts/generate_initcall_order.pl via jobserver-exec; a perl failure was masked by the wrapper.Return the subprocess exit code from main() and pass it to sys.exit()so the wrapped command's status reaches make.Signed-off-by: Daniel Golle Reviewed-by: Krzysztof Kozlowski Link: https://patch.msgid.link/660368ca16e2d3845577a9fd157d2f37f0e09e85.1779908995.git.daniel@makrotopia.orgSigned-off-by: Rob Herring (Arm) List of files: /linux/scripts/jobserver-exec

778b8ebe5192e7a7f00563a7456517dfa63e1d90 - docs: Move the python libraries to tools/lib/python

Mon, 10 Nov 2025 23:04:29 +0100

docs: Move the python libraries to tools/lib/python"scripts/lib" was always a bit of an awkward place for Python modules. Wealready have tools/lib; create a tools/lib/python, move the librariesthere, and update the users accordingly.While at it, move the contents of tools/docs/lib. Rather than make anotherdirectory, just put these documentation-oriented modules under "kdoc".Signed-off-by: Jonathan Corbet Message-ID: <20251110220430.726665-2-corbet@lwn.net> List of files: /linux/scripts/jobserver-exec

a84a5d0b5a184551eeded75b8df6440bd81e84f4 - scripts/jobserver-exec: add a help message

Thu, 18 Sep 2025 13:54:37 +0200

scripts/jobserver-exec: add a help messageCurrently, calling it without an argument shows an ugly errormessage. Instead, print a message using pythondoc as description.Signed-off-by: Mauro Carvalho Chehab Message-ID: <64b0339eac54ac0f2b3de3667a7f4f5becb1c6ae.1758196090.git.mchehab+huawei@kernel.org>Signed-off-by: Jonathan Corbet List of files: /linux/scripts/jobserver-exec

fce6df7e7384ba82ea718b14974f33c1b697cf18 - scripts/jobserver-exec: move its class to the lib directory

Thu, 18 Sep 2025 13:54:36 +0200

scripts/jobserver-exec: move its class to the lib directoryTo make it easier to be re-used, move the JobserverExec classto the library directory.Signed-off-by: Mauro Carvalho Chehab Message-ID: <6be7b161b6c005a9807162ebfd239af6a4e6fa47.1758196090.git.mchehab+huawei@kernel.org>Signed-off-by: Jonathan Corbet List of files: /linux/scripts/jobserver-exec

2a14f021210fcbc271591d4c592eb4adca6bf127 - scripts/jobserver-exec: move the code to a class

Thu, 18 Sep 2025 13:54:35 +0200

scripts/jobserver-exec: move the code to a classConvert the code inside jobserver-exec to a class andproperly document it.Using a class allows reusing the jobserver logic on otherscripts.While the main code remains unchanged, being compatible withPython 2.6 and 3.0+, its coding style now follows a moremodern standard, having tabs replaced by a 4-spacesindent, passing autopep8, black and pylint.The code allows using a pythonic way to enter/exit a pythoncode, e.g. it now supports: with JobserverExec() as jobserver: jobserver.run(sys.argv[1:])With the new code, the __exit__() function should ensurethat the jobserver slot will be closed at the end, even ifsomething bad happens somewhere.Signed-off-by: Mauro Carvalho Chehab Message-ID: <4749921b75d4e0bd85a25d4d94aa2c940fad084e.1758196090.git.mchehab+huawei@kernel.org>Signed-off-by: Jonathan Corbet List of files: /linux/scripts/jobserver-exec

8c0089882a62da2d75fb655e781cc33cc1351f6a - scripts: support GNU make 4.4 in jobserver-exec

Mon, 16 Jan 2023 11:45:33 +0100

scripts: support GNU make 4.4 in jobserver-execStarting with GNU make 4.4, --jobserver-auth newly uses namedpipe (fifo) instead of part of opened file descriptors:https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.htmlSupport also the new format.Signed-off-by: Martin Liska Signed-off-by: Masahiro Yamada List of files: /linux/scripts/jobserver-exec

f8f4dc7685c72c8ef86420566a38a4f786613851 - scripts/jobserver-exec: parse the last --jobserver-auth= option

Mon, 14 Nov 2022 19:10:55 +0100

scripts/jobserver-exec: parse the last --jobserver-auth= optionIn the GNU Make manual, the section "Sharing Job Slots with GNU make"says: Be aware that the MAKEFLAGS variable may contain multiple instances of the --jobserver-auth= option. Only the last instance is relevant.Take the last element of the array, not the first.Link: https://www.gnu.org/software/make/manual/html_node/Job-Slots.htmlSigned-off-by: Masahiro Yamada Reviewed-by: Nicolas Schier List of files: /linux/scripts/jobserver-exec

98a499a11ecdd8cb91d03dd5c034aaf7422f2deb - scripts/jobserver-exec: Fix a typo ("envirnoment")

Thu, 13 May 2021 18:24:02 +0200

scripts/jobserver-exec: Fix a typo ("envirnoment")Signed-off-by: Jonathan Neuschäfer Signed-off-by: Masahiro Yamada List of files: /linux/scripts/jobserver-exec

d8d2d38275c1b2d3936c0d809e0559e88912fbb5 - kbuild: remove PYTHON variable

Mon, 01 Feb 2021 02:00:24 +0100

kbuild: remove PYTHON variablePython retired in 2020, and some distributions do not provide the'python' command any more.As in commit 51839e29cb59 ("scripts: switch explicitly to Python 3"),we need to use more specific 'python3' to invoke scripts even if theyare written in a way compatible with both Python 2 and 3.This commit removes the variable 'PYTHON', and switches the existingusers to 'PYTHON3'.BTW, PEP 394 (https://www.python.org/dev/peps/pep-0394/) is a helpfulmaterial.Signed-off-by: Masahiro Yamada List of files: /linux/scripts/jobserver-exec

51e46c7a4007d271b2d42dbc2df953ab968577a7 - docs, parallelism: Rearrange how jobserver reservations are made

Thu, 21 Nov 2019 21:59:29 +0100

docs, parallelism: Rearrange how jobserver reservations are madeRasmus correctly observed that the existing jobserver reservation onlyworked if no other build targets were specified. The correct approachis to hold the jobserver slots until sphinx has finished. To fix this,the following changes are made:- refactor (and rename) scripts/jobserver-exec to set an environment variable for the maximally reserved jobserver slots and exec a child, to release the slots on exit.- create Documentation/scripts/parallel-wrapper.sh which examines both $PARALLELISM and the detected "-jauto" logic from Documentation/Makefile to decide sphinx's final -j argument.- chain these together in Documentation/MakefileSuggested-by: Rasmus Villemoes Link: https://lore.kernel.org/lkml/eb25959a-9ec4-3530-2031-d9d716b40b20@rasmusvillemoes.dkSigned-off-by: Kees Cook Link: https://lore.kernel.org/r/20191121205929.40371-4-keescook@chromium.orgSigned-off-by: Jonathan Corbet List of files: /linux/scripts/jobserver-exec