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kbuild: Update documentation of clean-files and clean-dirs

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Commit a16c5f99 (kbuild: Fix removal of the debian/ directory) slightly
changed the processing of the clean-files and clean-dirs variables.
Also, use a current real-world example of clean-files usage.

Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Michal Marek 2015-01-08 14:45:50 +01:00
parent d9f711db83
commit 976591810f
1 changed files with 5 additions and 6 deletions
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11
Documentation/kbuild/makefiles.txt
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@ -751,12 +751,12 @@ generated by kbuild are deleted all over the kernel src tree when
Additional files can be specified in kbuild makefiles by use of $(clean-files). Additional files can be specified in kbuild makefiles by use of $(clean-files).
Example: Example:
#drivers/pci/Makefile #lib/Makefile
clean-files := devlist.h classlist.h clean-files := crc32table.h
When executing "make clean", the two files "devlist.h classlist.h" will be When executing "make clean", the two files "devlist.h classlist.h" will be
deleted. Kbuild will assume files to be in the same relative directory as the deleted. Kbuild will assume files to be in the same relative directory as the
Makefile except if an absolute path is specified (path starting with '/'). Makefile, except if prefixed with $(objtree).
To delete a directory hierarchy use: To delete a directory hierarchy use:
@ -764,9 +764,8 @@ To delete a directory hierarchy use:
#scripts/package/Makefile #scripts/package/Makefile
clean-dirs := $(objtree)/debian/ clean-dirs := $(objtree)/debian/
This will delete the directory debian, including all subdirectories. This will delete the directory debian in the toplevel directory, including all
Kbuild will assume the directories to be in the same relative path as the subdirectories.
Makefile if no absolute path is specified (path does not start with '/').
To exclude certain files from make clean, use the $(no-clean-files) variable. To exclude certain files from make clean, use the $(no-clean-files) variable.
This is only a special case used in the top level Kbuild file: This is only a special case used in the top level Kbuild file: