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Re: [PATCH v2] Makefile: Remove generated files when doing 'distclean' (


From: Thomas Huth
Subject: Re: [PATCH v2] Makefile: Remove generated files when doing 'distclean' (and 'clean')
Date: Tue, 8 Oct 2019 14:35:20 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0

On 08/10/2019 14.18, Aleksandar Markovic wrote:
> 
> 
> On Tuesday, October 8, 2019, Thomas Huth <address@hidden
> <mailto:address@hidden>> wrote:
> 
>     When running "make distclean" we currently leave a lot of generated
>     files in the build directory. These should be completely removed.
>     Some of the generated files are removed in the "clean" target (which
>     is a prerequisite for the "distclean" target), since binary files
>     should be removed in this step already.
> 
>     Signed-off-by: Thomas Huth <address@hidden <mailto:address@hidden>>
>     ---
>      v2:
>      - Remove tests/qemu-iotests/common.env in "distclean", not in "clean"
>      - Improved patch description
> 
>      Makefile               |  6 +++---
>      tests/Makefile.include | 12 +++++++++++-
>      2 files changed, 14 insertions(+), 4 deletions(-)
> 
>     diff --git a/Makefile b/Makefile
>     index 30f0abfb42..767b1ffb25 100644
>     --- a/Makefile
>     +++ b/Makefile
>     @@ -696,14 +696,14 @@ clean: recurse-clean
>                     -exec rm {} +
>             rm -f $(edk2-decompressed)
>             rm -f $(filter-out %.tlb,$(TOOLS)) $(HELPERS-y) TAGS
>     cscope.* *.pod *~ */*~
>     -       rm -f fsdev/*.pod scsi/*.pod
>     +       rm -f fsdev/*.pod scsi/*.pod docs/*.pod docs/*/*.pod
>     docs/*/.buildinfo
>             rm -f qemu-img-cmds.h
>             rm -f ui/shader/*-vert.h ui/shader/*-frag.h
>             @# May not be present in generated-files-y
>             rm -f trace/generated-tracers-dtrace.dtrace*
>             rm -f trace/generated-tracers-dtrace.h*
>             rm -f $(foreach f,$(generated-files-y),$(f) $(f)-timestamp)
>     -       rm -f qapi-gen-timestamp
>     +       rm -f qapi-gen-timestamp vhost-user-input
>             rm -rf qga/qapi-generated
>             rm -f config-all-devices.mak
> 
>     @@ -724,7 +724,7 @@ distclean: clean
>             rm -f tests/tcg/config-*.mak
>             rm -f config-all-devices.mak config-all-disas.mak config.status
>             rm -f $(SUBDIR_DEVICES_MAK)
>     -       rm -f po/*.mo tests/qemu-iotests/common.env
>     +       rm -f po/*.mo
>             rm -f roms/seabios/config.mak roms/vgabios/config.mak
>             rm -f qemu-doc.info <http://qemu-doc.info> qemu-doc.aux
>     qemu-doc.cp qemu-doc.cps
>             rm -f qemu-doc.fn qemu-doc.fns qemu-doc.info
>     <http://qemu-doc.info> qemu-doc.ky <http://qemu-doc.ky> qemu-doc.kys
>     diff --git a/tests/Makefile.include b/tests/Makefile.include
>     index 3543451ed3..694f193fb6 100644
>     --- a/tests/Makefile.include
>     +++ b/tests/Makefile.include
>     @@ -1176,11 +1176,21 @@ check: check-block check-qapi-schema
>     check-unit check-softfloat check-qtest chec
>      check-clean:
>             rm -rf $(check-unit-y) tests/*.o $(QEMU_IOTESTS_HELPERS-y)
>             rm -rf $(sort $(foreach target,$(SYSEMU_TARGET_LIST),
>     $(check-qtest-$(target)-y)) $(check-qtest-generic-y))
>     -       rm -f tests/test-qapi-gen-timestamp
>             rm -rf $(TESTS_VENV_DIR) $(TESTS_RESULTS_DIR)
>     +       rm -f tests/test-qapi-gen-timestamp tests/qht-bench$(EXESUF) \
>     +               tests/fp/fp-test tests/fp/*.out
>     tests/qapi-schema/*.test.*
> 
>      clean: check-clean
> 
>     +check-distclean:
>     +       rm -f tests/qemu-iotests/common.env tests/qemu-iotests/check.*
>     +       rm -f tests/test-qapi-types*.c tests/test-qapi-visit*.c \
>     +               tests/test-qapi-commands*.c tests/test-qapi-events*.c \
>     +               tests/test-qapi-emit-events.[ch]
>     tests/test-qapi-introspect.c \
>     +               tests/include/test-qapi-*.c
>     +
>     +distclean: check-distclean
>     +
> 
> 
> Sorry for bad email format, I have some difficultues with mail accounts
> and  mail clients.
> 
> Thomas,
> 
> If I remember well, QAPI-related c files are generated while doing
> 'make'. If that is true, these files should be deleted by 'make clean',
> shouldn't they?

I think that's a philosophical question. Should "make clean" delete all
files that have been generated by a Makefile (i.e. not by "configure"),
or rather mainly the binary files?

If you have a look at our main Makefile in the topmost directory, you
can see that we remove lots of files that are obviously generated by
"make" in the "distclean" target, so it seems we have no clear rule what
should be deleted in each step...

 Thomas



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