From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932075AbbBFPAt (ORCPT ); Fri, 6 Feb 2015 10:00:49 -0500 Received: from cantor2.suse.de ([195.135.220.15]:47967 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755369AbbBFPAq (ORCPT ); Fri, 6 Feb 2015 10:00:46 -0500 Message-ID: <54D4D71B.40901@suse.com> Date: Fri, 06 Feb 2015 16:00:43 +0100 From: Juergen Gross User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: x86@kernel.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com CC: linux-kernel@vger.kernel.org, xen-devel@lists.xensource.com, konrad.wilk@oracle.com, david.vrabel@citrix.com, boris.ostrovsky@oracle.com, mmarek@suse.cz, linux-kbuild@vger.kernel.org Subject: Re: [RESEND Patch V2 1/4] xen: build infrastructure for generating hypercall depending symbols References: <1421826565-10826-1-git-send-email-jgross@suse.com> <1421826565-10826-2-git-send-email-jgross@suse.com> <54C86F97.1000907@suse.com> In-Reply-To: <54C86F97.1000907@suse.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hey, x86 maintainers! could you please comment? Juergen On 01/28/2015 06:11 AM, Juergen Gross wrote: > *Ping* > > David wants a comment from the x86 maintainers. > > > Juergen > > On 01/21/2015 08:49 AM, Juergen Gross wrote: >> Today there are several places in the kernel which build tables >> containing one entry for each possible Xen hypercall. Create an >> infrastructure to be able to generate these tables at build time. >> >> Based-on-patch-by: Jan Beulich >> Signed-off-by: Juergen Gross >> Reviewed-by: David Vrabel >> --- >> arch/x86/syscalls/Makefile | 9 +++++++++ >> scripts/xen-hypercalls.sh | 12 ++++++++++++ >> 2 files changed, 21 insertions(+) >> create mode 100644 scripts/xen-hypercalls.sh >> >> diff --git a/arch/x86/syscalls/Makefile b/arch/x86/syscalls/Makefile >> index 3323c27..a55abb9 100644 >> --- a/arch/x86/syscalls/Makefile >> +++ b/arch/x86/syscalls/Makefile >> @@ -19,6 +19,9 @@ quiet_cmd_syshdr = SYSHDR $@ >> quiet_cmd_systbl = SYSTBL $@ >> cmd_systbl = $(CONFIG_SHELL) '$(systbl)' $< $@ >> >> +quiet_cmd_hypercalls = HYPERCALLS $@ >> + cmd_hypercalls = $(CONFIG_SHELL) '$<' $@ $(filter-out $<,$^) >> + >> syshdr_abi_unistd_32 := i386 >> $(uapi)/unistd_32.h: $(syscall32) $(syshdr) >> $(call if_changed,syshdr) >> @@ -47,10 +50,16 @@ $(out)/syscalls_32.h: $(syscall32) $(systbl) >> $(out)/syscalls_64.h: $(syscall64) $(systbl) >> $(call if_changed,systbl) >> >> +$(out)/xen-hypercalls.h: $(srctree)/scripts/xen-hypercalls.sh >> + $(call if_changed,hypercalls) >> + >> +$(out)/xen-hypercalls.h: $(srctree)/include/xen/interface/xen*.h >> + >> uapisyshdr-y += unistd_32.h unistd_64.h unistd_x32.h >> syshdr-y += syscalls_32.h >> syshdr-$(CONFIG_X86_64) += unistd_32_ia32.h unistd_64_x32.h >> syshdr-$(CONFIG_X86_64) += syscalls_64.h >> +syshdr-$(CONFIG_XEN) += xen-hypercalls.h >> >> targets += $(uapisyshdr-y) $(syshdr-y) >> >> diff --git a/scripts/xen-hypercalls.sh b/scripts/xen-hypercalls.sh >> new file mode 100644 >> index 0000000..676d922 >> --- /dev/null >> +++ b/scripts/xen-hypercalls.sh >> @@ -0,0 +1,12 @@ >> +#!/bin/sh >> +out="$1" >> +shift >> +in="$@" >> + >> +for i in $in; do >> + eval $CPP $LINUXINCLUDE -dD -imacros "$i" -x c /dev/null >> +done | \ >> +awk '$1 == "#define" && $2 ~ /__HYPERVISOR_[a-z][a-z_0-9]*/ { v[$3] = >> $2 } >> + END { print "/* auto-generated by scripts/xen-hypercall.sh */" >> + for (i in v) if (!(v[i] in v)) >> + print "HYPERCALL("substr(v[i], 14)")"}' | sort -u >$out >> > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > >