Em Tue, 15 Apr 2025 11:19:26 +0300 Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> escreveu: > On Tue, Apr 15, 2025 at 11:17:12AM +0300, Andy Shevchenko wrote: > > On Tue, Apr 15, 2025 at 10:49:29AM +0300, Jani Nikula wrote: > > > On Tue, 15 Apr 2025, Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> wrote: > > > > On Tue, Apr 15, 2025 at 10:01:04AM +0300, Andy Shevchenko wrote: > > > >> On Mon, Apr 14, 2025 at 09:17:51AM -0600, Jonathan Corbet wrote: > > > >> > Andy Shevchenko <andriy.shevchenko@xxxxxxxxx> writes: > > > >> > > On Wed, Apr 09, 2025 at 12:30:00PM -0600, Jonathan Corbet wrote: > > > >> > >> Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> writes: > > > >> > >> > > > >> > >> > This changeset contains the kernel-doc.py script to replace the verable > > > >> > >> > kernel-doc originally written in Perl. It replaces the first version and the > > > >> > >> > second series I sent on the top of it. > > > >> > >> > > > >> > >> OK, I've applied it, looked at the (minimal) changes in output, and > > > >> > >> concluded that it's good - all this stuff is now in docs-next. Many > > > >> > >> thanks for doing this! > > > >> > >> > > > >> > >> I'm going to hold off on other documentation patches for a day or two > > > >> > >> just in case anything turns up. But it looks awfully good. > > > >> > > > > > >> > > This started well, until it becomes a scripts/lib/kdoc. > > > >> > > So, it makes the `make O=...` builds dirty *). Please make sure this doesn't leave > > > >> > > "disgusting turd" )as said by Linus) in the clean tree. > > > >> > > > > > >> > > *) it creates that __pycache__ disaster. And no, .gitignore IS NOT a solution. > > > >> > > > > >> > If nothing else, "make cleandocs" should clean it up, certainly. > > > >> > > > > >> > We can also tell CPython to not create that directory at all. I'll run > > > >> > some tests to see what the effect is on the documentation build times; > > > >> > I'm guessing it will not be huge... > > > >> > > > >> I do not build documentation at all, it's just a regular code build that leaves > > > >> tree dirty. > > > >> > > > >> $ python3 --version > > > >> Python 3.13.2 > > > >> > > > >> It's standard Debian testing distribution, no customisation in the code. > > > >> > > > >> To reproduce. > > > >> 1) I have just done a new build to reduce the churn, so, running make again does nothing; > > > >> 2) The following snippet in shell shows the issue > > > >> > > > >> $ git clean -xdf > > > >> $ git status --ignored > > > >> On branch ... > > > >> nothing to commit, working tree clean > > > >> > > > >> $ make LLVM=-19 O=.../out W=1 C=1 CF=-D__CHECK_ENDIAN__ -j64 > > > >> make[1]: Entering directory '...' > > > >> GEN Makefile > > > >> DESCEND objtool > > > >> CALL .../scripts/checksyscalls.sh > > > >> INSTALL libsubcmd_headers > > > >> .pylintrc: warning: ignored by one of the .gitignore files > > > >> Kernel: arch/x86/boot/bzImage is ready (#23) > > > >> make[1]: Leaving directory '...' > > > >> > > > >> $ touch drivers/gpio/gpiolib-acpi.c > > > >> > > > >> $ make LLVM=-19 O=.../out W=1 C=1 CF=-D__CHECK_ENDIAN__ -j64 > > > >> make[1]: Entering directory '...' > > > >> GEN Makefile > > > >> DESCEND objtool > > > >> CALL .../scripts/checksyscalls.sh > > > >> INSTALL libsubcmd_headers > > > >> ... > > > >> OBJCOPY arch/x86/boot/setup.bin > > > >> BUILD arch/x86/boot/bzImage > > > >> Kernel: arch/x86/boot/bzImage is ready (#24) > > > >> make[1]: Leaving directory '...' > > > >> > > > >> $ git status --ignored > > > >> On branch ... > > > >> Untracked files: > > > >> (use "git add <file>..." to include in what will be committed) > > > >> scripts/lib/kdoc/__pycache__/ > > > >> > > > >> nothing added to commit but untracked files present (use "git add" to track) > > > > > > > > FWIW, I repeated this with removing the O=.../out folder completely, so it's > > > > fully clean build. Still the same issue. > > > > > > > > And it appears at the very beginning of the build. You don't need to wait to > > > > have the kernel to be built actually. > > > > > > kernel-doc gets run on source files for W=1 builds. See Makefile.build. > > > > Thanks for the clarification, so we know that it runs and we know that it has > > an issue. > > Ideal solution what would I expect is that the cache folder should respect > the given O=... argument, or disabled at all (but I don't think the latter > is what we want as it may slow down the build). From: https://github.com/python/cpython/commit/b193fa996a746111252156f11fb14c12fd6267e6 and: https://peps.python.org/pep-3147/ It sounds that Python 3.8 and above have a way to specify the cache location, via PYTHONPYCACHEPREFIX env var, and via "-X pycache_prefix=path". As the current minimal Python version is 3.9, we can safely use it. So, maybe this would work: make O="../out" PYTHONPYCACHEPREFIX="../out" or a variant of it: PYTHONPYCACHEPREFIX="../out" make O="../out" If this works, we can adjust the building system to fill PYTHONPYCACHEPREFIX env var when O= is used. Regards, Mauro
