On Thu, Mar 07, 2019 at 10:05:30PM +0300, Arseny Maslennikov wrote: > On Fri, Mar 08, 2019 at 12:32:11AM +0900, Masahiro Yamada wrote: > > On Fri, Feb 22, 2019 at 7:19 AM Arseny Maslennikov <ar@xxxxxxxxx> wrote: > > > > > > It is widely known that one can build a kernel without a .config in the > > > source tree > > > > "without a .config in the source file" means > > KCONFIG_CONFIG will probably contain '..' or absolute path. > > > > > > > > ex1) KCONFIG_CONFIG=../my_dir/.config > > > > ex2) KCONFIG_CONFIG=/absolute/pass/to/my/.config > > > > Hmm, I did not consider that; my bad, sorry. > > > > > > > > > > > > by setting KCONFIG_CONFIG equal to the actual configuration > > > file path. > > > > > > When making a *-pkg target, make(1) prepares a source tarball and tries > > > to pack `.config' in there regardless of the value of KCONFIG_CONFIG, > > > failing spectacularly if .config is absent and packing the wrong config > > > if it exists. > > > Let's fix that. > > > > > > Did you notice the log 'Removing leading ...' from tar > > for case ex1), ex2) ? > > > > > > masahiro@grover:~/ref/linux$ make -j8 KCONFIG_CONFIG=../.config deb-pkg > > make clean > > /bin/bash ./scripts/package/mkdebian > > TAR linux-5.0.0+.tar.gz > > tar: Removing leading `../' from member names > > Yes, I know tar does that. I mostly use KCONFIG_CONFIG with a bunch of > config files in the source tree, so did not experience this while making > sure the change makes sense. > > > ... > > > > > > Even if I apply 3/3, it will produce a broken source package > > since the tar will rip off the leading directory path, > > then it mismatches to KCONFIG_CONFIG recorded in debian/rules. > > > > A simple case like KCONFIG_CONFIG=my.config will work, > > but I am not convinced with 3/3. > > > > So instead of this one and 3/3 we could ensure the source tarball > contains a .config equal to the contents of KCONFIG_CONFIG provided to > make(1), so the source package is fixed and its users are not confused. > > If the following is ok, I'll send a v2. > A quick look at the generated orig tarball tells me it ought to work > well. > > Something like this: > > diff --git a/scripts/package/Makefile b/scripts/package/Makefile > index 100a0d28ad25..8530fe267a76 100644 > --- a/scripts/package/Makefile > +++ b/scripts/package/Makefile > @@ -44,6 +44,7 @@ if test "$(objtree)" != "$(srctree)"; then \ > fi ; \ > $(srctree)/scripts/setlocalversion --save-scmversion; \ > tar -cz $(RCS_TAR_IGNORE) -f $(2).tar.gz \ > + --absolute-names --transform 's:^$(KCONFIG_CONFIG):.config:S' \ GNU tar seems to trim the paths of archive members first and only then consider the --transform rules, so it does not work with KCONFIG_CONFIG=../../my.config and the likes if -P/--absolute-names is not provided. > --transform 's:^:$(2)/:S' $(TAR_CONTENT) $(3); \ > rm -f $(objtree)/.scmversion >
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