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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Jan Beulich <jbeulich@suse.com>
Cc: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	George Dunlap <george.dunlap@citrix.com>,
	Ian Jackson <iwj@xenproject.org>, Julien Grall <julien@xen.org>,
	Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>
Subject: Re: [PATCH] build: centralize / unify asm-offsets generation
Date: Tue, 20 Apr 2021 17:29:34 +0200	[thread overview]
Message-ID: <YH7zXpPz03+kLzEr@Air-de-Roger> (raw)
In-Reply-To: <fa340caa-4ee1-a302-fbf1-1df400493d6b@suse.com>

On Thu, Apr 01, 2021 at 10:33:47AM +0200, Jan Beulich wrote:
> Except for an additional prereq Arm and x86 have the same needs here,
> and Arm can also benefit from the recent x86 side improvement. Recurse
> into arch/*/ only for a phony include target (doing nothing on Arm),
> and handle asm-offsets itself entirely locally to xen/Makefile.
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
> 
> --- a/.gitignore
> +++ b/.gitignore
> @@ -318,7 +318,6 @@
>  xen/arch/x86/efi/check.efi
>  xen/arch/x86/efi/mkreloc
>  xen/arch/*/xen.lds
> -xen/arch/*/asm-offsets.s
>  xen/arch/*/efi/boot.c
>  xen/arch/*/efi/compat.c
>  xen/arch/*/efi/ebmalloc.c
> @@ -325,6 +324,7 @@
>  xen/arch/*/efi/efi.h
>  xen/arch/*/efi/pe.c
>  xen/arch/*/efi/runtime.c
> +xen/asm-offsets.s
>  xen/common/config_data.S
>  xen/common/config.gz
>  xen/include/headers*.chk
> --- a/xen/Makefile
> +++ b/xen/Makefile
> @@ -341,7 +341,7 @@ _clean: delete-unfresh-files
>  	find . \( -name "*.o" -o -name ".*.d" -o -name ".*.d2" \
>  		-o -name "*.gcno" -o -name ".*.cmd" \) -exec rm -f {} \;
>  	rm -f include/asm $(TARGET) $(TARGET).gz $(TARGET).efi $(TARGET).efi.map $(TARGET)-syms $(TARGET)-syms.map *~ core
> -	rm -f include/asm-*/asm-offsets.h
> +	rm -f asm-offsets.s include/asm-*/asm-offsets.h
>  	rm -f .banner
>  
>  .PHONY: _distclean
> @@ -362,7 +362,7 @@ $(TARGET): delete-unfresh-files
>  		done; \
>  		true
>  	$(MAKE) -f $(BASEDIR)/Rules.mk -C include
> -	$(MAKE) -f $(BASEDIR)/Rules.mk -C arch/$(TARGET_ARCH) asm-offsets.s
> +	$(MAKE) -f $(BASEDIR)/Rules.mk -C arch/$(TARGET_ARCH) include
>  	$(MAKE) -f $(BASEDIR)/Rules.mk include/asm-$(TARGET_ARCH)/asm-offsets.h
>  	$(MAKE) -f $(BASEDIR)/Rules.mk -C arch/$(TARGET_ARCH) $@
>  
> @@ -399,7 +399,11 @@ include/xen/compile.h: include/xen/compi
>  	@sed -rf tools/process-banner.sed < .banner >> $@.new
>  	@mv -f $@.new $@
>  
> -include/asm-$(TARGET_ARCH)/asm-offsets.h: arch/$(TARGET_ARCH)/asm-offsets.s
> +asm-offsets.s: arch/$(TARGET_ARCH)/$(TARGET_SUBARCH)/asm-offsets.c
> +	$(CC) $(filter-out -Wa$(comma)% -flto,$(c_flags)) -S -g0 -o $@.new -MQ $@ $<
> +	$(call move-if-changed,$@.new,$@)

Won't it be more natural to keep the .s file in arch/$(TARGET_ARCH)?

Thanks, Roger.


  parent reply	other threads:[~2021-04-20 15:30 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01  8:33 Jan Beulich
2021-04-01 15:05 ` Julien Grall
2021-04-01 15:29   ` Jan Beulich
2021-04-15  9:50 ` Ping: " Jan Beulich
2021-04-20 15:29 ` Roger Pau Monné [this message]
2021-04-20 15:47   ` Jan Beulich
2021-04-20 16:20     ` Roger Pau Monné
2021-04-21 14:09       ` Jan Beulich
2021-04-27  9:05         ` Roger Pau Monné
2021-04-27 12:30           ` Jan Beulich
2021-04-27 13:31             ` Roger Pau Monné
2021-04-27 13:40               ` Jan Beulich
2021-04-27 14:13                 ` Roger Pau Monné
2021-04-29  9:18                   ` Ping: " Jan Beulich
2021-05-10 17:43                     ` Julien Grall

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