From: "Jan Beulich" <JBeulich@suse.com> To: Volodymyr Babchuk <volodymyr_babchuk@epam.com> Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, George Dunlap <George.Dunlap@eu.citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>, Julien Grall <julien.grall@arm.com>, xen-devel <xen-devel@lists.xenproject.org>, "andrii_anisov@epam.com" <andrii_anisov@epam.com> Subject: Re: [PATCH v1 1/2] makefile: add support for *_defconfig targets Date: Thu, 16 May 2019 01:21:58 -0600 [thread overview] Message-ID: <5CDD0F96020000780022F740@prv1-mh.provo.novell.com> (raw) In-Reply-To: <87bm038rjn.fsf@epam.com> >>> On 15.05.19 at 21:07, <Volodymyr_Babchuk@epam.com> wrote: > Hello Jan, > > Jan Beulich writes: > >>>>> On 14.05.19 at 20:45, <Volodymyr_Babchuk@epam.com> wrote: >>> --- a/xen/Makefile >>> +++ b/xen/Makefile >>> @@ -269,6 +269,9 @@ kconfig := silentoldconfig oldconfig config menuconfig > defconfig \ >>> $(kconfig): >>> $(MAKE) -f $(BASEDIR)/tools/kconfig/Makefile.kconfig ARCH=$(ARCH) > SRCARCH=$(SRCARCH) HOSTCC="$(HOSTCC)" HOSTCXX="$(HOSTCXX)" $@ >> >> So the rule you add matches this one. Is there a reason ... >> >>> +%_defconfig: >> >> ... why you can't simply add this to the kconfig variable set a few >> lines up? Oh - newer make doesn't like mixing pattern and >> non-pattern rules. > Yes, my first intention was to add this rule to the kconfig variable. > Sadly make does not allows this > >> Perhaps worth a brief comment, to justify the >> redundancy? > Sure, will add in the next version. > >> Or alternatively, how about using $(wildcard ) >> instead of a pattern rule, thus rejecting invalid targets right away, >> rather than deferring to the recursive make to notice the error? > I considered this, but I can't see how $(wildcard ) can be used. > AFAIK, $(wildcard ) expects to find a file, matching the wildcard. > But %_defconfig is the phony rule, so I can't imagine how to use > $(wildcard ) in this case. > > On other hand, following rule checks the presence of required _defconfig > file: > > %_defconfig: arch/$(SRCARCH)/configs/%_defconfig And similarly I'd expect $(wildcard arch/$(SRCARCH)/configs/*_defconfig) to work as suggested (wrapped in $(notdir ...) to strip the path). Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
WARNING: multiple messages have this Message-ID (diff)
From: "Jan Beulich" <JBeulich@suse.com> To: "Volodymyr Babchuk" <volodymyr_babchuk@epam.com> Cc: Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wei.liu2@citrix.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, George Dunlap <George.Dunlap@eu.citrix.com>, Andrew Cooper <andrew.cooper3@citrix.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>, Julien Grall <julien.grall@arm.com>, xen-devel <xen-devel@lists.xenproject.org>, "andrii_anisov@epam.com" <andrii_anisov@epam.com> Subject: Re: [Xen-devel] [PATCH v1 1/2] makefile: add support for *_defconfig targets Date: Thu, 16 May 2019 01:21:58 -0600 [thread overview] Message-ID: <5CDD0F96020000780022F740@prv1-mh.provo.novell.com> (raw) Message-ID: <20190516072158.5c2c3PJMdceMh2aSChFmLekVFPqqrERWTt4zOHjmaH0@z> (raw) In-Reply-To: <87bm038rjn.fsf@epam.com> >>> On 15.05.19 at 21:07, <Volodymyr_Babchuk@epam.com> wrote: > Hello Jan, > > Jan Beulich writes: > >>>>> On 14.05.19 at 20:45, <Volodymyr_Babchuk@epam.com> wrote: >>> --- a/xen/Makefile >>> +++ b/xen/Makefile >>> @@ -269,6 +269,9 @@ kconfig := silentoldconfig oldconfig config menuconfig > defconfig \ >>> $(kconfig): >>> $(MAKE) -f $(BASEDIR)/tools/kconfig/Makefile.kconfig ARCH=$(ARCH) > SRCARCH=$(SRCARCH) HOSTCC="$(HOSTCC)" HOSTCXX="$(HOSTCXX)" $@ >> >> So the rule you add matches this one. Is there a reason ... >> >>> +%_defconfig: >> >> ... why you can't simply add this to the kconfig variable set a few >> lines up? Oh - newer make doesn't like mixing pattern and >> non-pattern rules. > Yes, my first intention was to add this rule to the kconfig variable. > Sadly make does not allows this > >> Perhaps worth a brief comment, to justify the >> redundancy? > Sure, will add in the next version. > >> Or alternatively, how about using $(wildcard ) >> instead of a pattern rule, thus rejecting invalid targets right away, >> rather than deferring to the recursive make to notice the error? > I considered this, but I can't see how $(wildcard ) can be used. > AFAIK, $(wildcard ) expects to find a file, matching the wildcard. > But %_defconfig is the phony rule, so I can't imagine how to use > $(wildcard ) in this case. > > On other hand, following rule checks the presence of required _defconfig > file: > > %_defconfig: arch/$(SRCARCH)/configs/%_defconfig And similarly I'd expect $(wildcard arch/$(SRCARCH)/configs/*_defconfig) to work as suggested (wrapped in $(notdir ...) to strip the path). Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
next prev parent reply other threads:[~2019-05-16 7:22 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-14 18:45 [PATCH v1 1/2] makefile: add support for *_defconfig targets Volodymyr Babchuk 2019-05-14 18:45 ` [Xen-devel] " Volodymyr Babchuk 2019-05-14 18:45 ` [PATCH v1 2/2] arm: rename tiny64.conf to tiny64_defconfig Volodymyr Babchuk 2019-05-14 18:45 ` [Xen-devel] " Volodymyr Babchuk 2019-05-15 7:24 ` [PATCH v1 1/2] makefile: add support for *_defconfig targets Jan Beulich 2019-05-15 7:24 ` [Xen-devel] " Jan Beulich 2019-05-15 19:07 ` Volodymyr Babchuk 2019-05-15 19:07 ` [Xen-devel] " Volodymyr Babchuk 2019-05-16 7:21 ` Jan Beulich [this message] 2019-05-16 7:21 ` Jan Beulich
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