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d="scan'208";a="73044234" From: Anthony PERARD To: CC: Anthony PERARD , Andrew Cooper , George Dunlap , "Jan Beulich" , Julien Grall , "Stefano Stabellini" , Wei Liu Subject: [XEN PATCH 1/4] build: xen/include: use if_changed Date: Wed, 1 Jun 2022 17:59:06 +0100 Message-ID: <20220601165909.46588-2-anthony.perard@citrix.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220601165909.46588-1-anthony.perard@citrix.com> References: <20220601165909.46588-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1654102792502100003 Content-Type: text/plain; charset="utf-8" Use "define" for the headers*_chk commands as otherwise the "#" is interpreted as a comment and make can't find the end of $(foreach,). Adding several .PRECIOUS as without them `make` deletes the intermediate targets. This is an issue because the macro $(if_changed,) check if the target exist in order to decide whether to recreate the target. Removing the call to `mkdir` from the commands. Those aren't needed anymore because a rune in Rules.mk creates the directory for each $(targets). Remove "export PYTHON" as it is already exported. Signed-off-by: Anthony PERARD Acked-by: Jan Beulich Reported-by: Bertrand Marquis Reviewed-by: Bertrand Marquis --- xen/include/Makefile | 108 ++++++++++++++++++++++++++++++------------- 1 file changed, 76 insertions(+), 32 deletions(-) diff --git a/xen/include/Makefile b/xen/include/Makefile index 03baf10efb..6d9bcc19b0 100644 --- a/xen/include/Makefile +++ b/xen/include/Makefile @@ -45,38 +45,65 @@ public-$(CONFIG_ARM) :=3D $(wildcard $(srcdir)/public/a= rch-arm/*.h $(srcdir)/publi .PHONY: all all: $(addprefix $(obj)/,$(headers-y)) =20 -$(obj)/compat/%.h: $(obj)/compat/%.i $(srcdir)/Makefile $(srctree)/tools/c= ompat-build-header.py - $(PYTHON) $(srctree)/tools/compat-build-header.py <$< $(patsubst $(obj)/%= ,%,$@) >>$@.new; \ - mv -f $@.new $@ - -$(obj)/compat/%.i: $(obj)/compat/%.c $(srcdir)/Makefile - $(CPP) $(filter-out -Wa$(comma)% -include %/include/xen/config.h,$(XEN_CF= LAGS)) $(cppflags-y) -o $@ $< - -$(obj)/compat/%.c: $(src)/public/%.h $(srcdir)/xlat.lst $(srcdir)/Makefile= $(srctree)/tools/compat-build-source.py - mkdir -p $(@D) - $(PYTHON) $(srctree)/tools/compat-build-source.py $(srcdir)/xlat.lst <$< = >$@.new - mv -f $@.new $@ - -$(obj)/compat/.xlat/%.h: $(obj)/compat/%.h $(obj)/compat/.xlat/%.lst $(src= tree)/tools/get-fields.sh $(srcdir)/Makefile - export PYTHON=3D$(PYTHON); \ - while read what name; do \ - $(SHELL) $(srctree)/tools/get-fields.sh "$$what" compat_$$name $< || exi= t $$?; \ - done <$(patsubst $(obj)/compat/%,$(obj)/compat/.xlat/%,$(basename $<)).ls= t >$@.new - mv -f $@.new $@ +quiet_cmd_compat_h =3D GEN $@ +cmd_compat_h =3D \ + $(PYTHON) $(srctree)/tools/compat-build-header.py <$< $(patsubst $(obj= )/%,%,$@) >>$@.new; \ + mv -f $@.new $@ + +quiet_cmd_compat_i =3D CPP $@ +cmd_compat_i =3D $(CPP) $(filter-out -Wa$(comma)% -include %/include/xen/c= onfig.h,$(XEN_CFLAGS)) $(cppflags-y) -o $@ $< + +quiet_cmd_compat_c =3D GEN $@ +cmd_compat_c =3D \ + $(PYTHON) $(srctree)/tools/compat-build-source.py $(srcdir)/xlat.lst <$= < >$@.new; \ + mv -f $@.new $@ + +quiet_cmd_xlat_headers =3D GEN $@ +cmd_xlat_headers =3D \ + while read what name; do \ + $(SHELL) $(srctree)/tools/get-fields.sh "$$what" compat_$$name $< = || exit $$?; \ + done <$(patsubst $(obj)/compat/%,$(obj)/compat/.xlat/%,$(basename $<))= .lst >$@.new; \ + mv -f $@.new $@ + +targets +=3D $(headers-y) +$(obj)/compat/%.h: $(obj)/compat/%.i $(srctree)/tools/compat-build-header.= py FORCE + $(call if_changed,compat_h) + +.PRECIOUS: $(obj)/compat/%.i +targets +=3D $(patsubst %.h, %.i, $(headers-y)) +$(obj)/compat/%.i: $(obj)/compat/%.c FORCE + $(call if_changed,compat_i) + +.PRECIOUS: $(obj)/compat/%.c +targets +=3D $(patsubst %.h, %.c, $(headers-y)) +$(obj)/compat/%.c: $(src)/public/%.h $(srcdir)/xlat.lst $(srctree)/tools/c= ompat-build-source.py FORCE + $(call if_changed,compat_c) + +targets +=3D $(patsubst compat/%, compat/.xlat/%, $(headers-y)) +$(obj)/compat/.xlat/%.h: $(obj)/compat/%.h $(obj)/compat/.xlat/%.lst $(src= tree)/tools/get-fields.sh FORCE + $(call if_changed,xlat_headers) + +quiet_cmd_xlat_lst =3D GEN $@ +cmd_xlat_lst =3D \ + grep -v '^[[:blank:]]*$(pound)' $< | sed -ne 's,@arch@,$(compat-arch-y),g= ' -re 's,[[:blank:]]+$*\.h[[:blank:]]*$$,,p' >$@.new; \ + $(call move-if-changed,$@.new,$@) =20 .PRECIOUS: $(obj)/compat/.xlat/%.lst -$(obj)/compat/.xlat/%.lst: $(srcdir)/xlat.lst $(srcdir)/Makefile - mkdir -p $(@D) - grep -v '^[[:blank:]]*#' $< | sed -ne 's,@arch@,$(compat-arch-y),g' -re '= s,[[:blank:]]+$*\.h[[:blank:]]*$$,,p' >$@.new - $(call move-if-changed,$@.new,$@) +targets +=3D $(patsubst compat/%.h, compat/.xlat/%.lst, $(headers-y)) +$(obj)/compat/.xlat/%.lst: $(srcdir)/xlat.lst FORCE + $(call if_changed,xlat_lst) =20 xlat-y :=3D $(shell sed -ne 's,@arch@,$(compat-arch-y),g' -re 's,^[?!][[:b= lank:]]+[^[:blank:]]+[[:blank:]]+,,p' $(srcdir)/xlat.lst | uniq) xlat-y :=3D $(filter $(patsubst compat/%,%,$(headers-y)),$(xlat-y)) =20 -$(obj)/compat/xlat.h: $(addprefix $(obj)/compat/.xlat/,$(xlat-y)) $(obj)/c= onfig/auto.conf $(srcdir)/Makefile - cat $(filter %.h,$^) >$@.new +quiet_cmd_xlat_h =3D GEN $@ +cmd_xlat_h =3D \ + cat $(filter %.h,$^) >$@.new; \ mv -f $@.new $@ =20 +$(obj)/compat/xlat.h: $(addprefix $(obj)/compat/.xlat/,$(xlat-y)) $(obj)/c= onfig/auto.conf FORCE + $(call if_changed,xlat_h) + ifeq ($(XEN_TARGET_ARCH),$(XEN_COMPILE_ARCH)) =20 all: $(obj)/headers.chk $(obj)/headers99.chk $(obj)/headers++.chk @@ -102,27 +129,31 @@ PUBLIC_C99_HEADERS :=3D $(call public-filter-headers,= public-c99-headers) $(src)/public/io/9pfs.h-prereq :=3D string $(src)/public/io/pvcalls.h-prereq :=3D string =20 -$(obj)/headers.chk: $(PUBLIC_ANSI_HEADERS) $(srcdir)/Makefile +quiet_cmd_header_chk =3D CHK $@ +cmd_header_chk =3D \ for i in $(filter %.h,$^); do \ $(CC) -x c -ansi -Wall -Werror -include stdint.h \ -S -o /dev/null $$i || exit 1; \ echo $$i; \ - done >$@.new + done >$@.new; \ mv $@.new $@ =20 -$(obj)/headers99.chk: $(PUBLIC_C99_HEADERS) $(srcdir)/Makefile - rm -f $@.new +quiet_cmd_headers99_chk =3D CHK $@ +define cmd_headers99_chk + rm -f $@.new; \ $(foreach i, $(filter %.h,$^), \ echo "#include "\"$(i)\" \ | $(CC) -x c -std=3Dc99 -Wall -Werror \ -include stdint.h \ $(foreach j, $($(patsubst $(srctree)/%,%,$i)-prereq), -include $(j)= .h) \ -S -o /dev/null - \ - || exit $$?; echo $(i) >> $@.new;) + || exit $$?; echo $(i) >> $@.new;) \ mv $@.new $@ +endef =20 -$(obj)/headers++.chk: $(PUBLIC_HEADERS) $(srcdir)/Makefile - rm -f $@.new +quiet_cmd_headerscxx_chk =3D CHK $@ +define cmd_headerscxx_chk + rm -f $@.new; \ if ! $(CXX) -v >/dev/null 2>&1; then \ touch $@.new; \ exit 0; \ @@ -133,8 +164,21 @@ $(obj)/headers++.chk: $(PUBLIC_HEADERS) $(srcdir)/Make= file -include stdint.h -include $(srcdir)/public/xen.h \ $(foreach j, $($(patsubst $(srctree)/%,%,$i)-prereq), -include c$(j= )) \ -S -o /dev/null - \ - || exit $$?; echo $(i) >> $@.new;) + || exit $$?; echo $(i) >> $@.new;) \ mv $@.new $@ +endef + +targets +=3D headers.chk +$(obj)/headers.chk: $(PUBLIC_ANSI_HEADERS) FORCE + $(call if_changed,header_chk) + +targets +=3D headers99.chk +$(obj)/headers99.chk: $(PUBLIC_C99_HEADERS) FORCE + $(call if_changed,headers99_chk) + +targets +=3D headers++.chk +$(obj)/headers++.chk: $(PUBLIC_HEADERS) FORCE + $(call if_changed,headerscxx_chk) =20 endif =20 --=20 Anthony PERARD From nobody Sun May 19 08:30:54 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass(p=reject dis=none) header.from=citrix.com ARC-Seal: i=1; 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d="scan'208";a="72494142" From: Anthony PERARD To: CC: Anthony PERARD , Andrew Cooper , George Dunlap , "Jan Beulich" , Julien Grall , "Stefano Stabellini" , Wei Liu Subject: [XEN PATCH 2/4] build: set PERL Date: Wed, 1 Jun 2022 17:59:07 +0100 Message-ID: <20220601165909.46588-3-anthony.perard@citrix.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220601165909.46588-1-anthony.perard@citrix.com> References: <20220601165909.46588-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1654102796735100001 Content-Type: text/plain; charset="utf-8" We are going to use it in a moment. Signed-off-by: Anthony PERARD --- xen/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/xen/Makefile b/xen/Makefile index 82f5310b12..a6650a2acc 100644 --- a/xen/Makefile +++ b/xen/Makefile @@ -22,6 +22,7 @@ PYTHON_INTERPRETER :=3D $(word 1,$(shell which python3 py= thon python2 2>/dev/null) export PYTHON ?=3D $(PYTHON_INTERPRETER) =20 export CHECKPOLICY ?=3D checkpolicy +export PERL ?=3D perl =20 $(if $(filter __%, $(MAKECMDGOALS)), \ $(error targets prefixed with '__' are only for internal use)) --=20 Anthony PERARD From nobody Sun May 19 08:30:54 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; 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d="scan'208";a="72494147" From: Anthony PERARD To: CC: Anthony PERARD , Andrew Cooper , George Dunlap , "Jan Beulich" , Julien Grall , "Stefano Stabellini" , Wei Liu Subject: [XEN PATCH 3/4] build: replace get-fields.sh by a perl script Date: Wed, 1 Jun 2022 17:59:08 +0100 Message-ID: <20220601165909.46588-4-anthony.perard@citrix.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220601165909.46588-1-anthony.perard@citrix.com> References: <20220601165909.46588-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1654102806688100001 Content-Type: text/plain; charset="utf-8" The get-fields.sh which generate all the include/compat/.xlat/*.h headers is quite slow. It takes for example nearly 3 seconds to generate platform.h on a recent machine, or 2.3 seconds for memory.h. Since it's only text processing, rewriting the mix of shell/sed/python into a single perl script make the generation of those file a lot faster. I tried to keep a similar look for the code, to keep the code similar between the shell and perl, and to ease review. So some code in perl might look weird or could be written better. Signed-off-by: Anthony PERARD --- xen/include/Makefile | 6 +- xen/tools/compat-xlat-header | 539 +++++++++++++++++++++++++++++++++++ xen/tools/get-fields.sh | 528 ---------------------------------- 3 files changed, 541 insertions(+), 532 deletions(-) create mode 100755 xen/tools/compat-xlat-header delete mode 100644 xen/tools/get-fields.sh diff --git a/xen/include/Makefile b/xen/include/Makefile index 6d9bcc19b0..b7e7148665 100644 --- a/xen/include/Makefile +++ b/xen/include/Makefile @@ -60,9 +60,7 @@ cmd_compat_c =3D \ =20 quiet_cmd_xlat_headers =3D GEN $@ cmd_xlat_headers =3D \ - while read what name; do \ - $(SHELL) $(srctree)/tools/get-fields.sh "$$what" compat_$$name $< = || exit $$?; \ - done <$(patsubst $(obj)/compat/%,$(obj)/compat/.xlat/%,$(basename $<))= .lst >$@.new; \ + $(PERL) $(srctree)/tools/compat-xlat-header $< $(patsubst $(obj)/compa= t/%,$(obj)/compat/.xlat/%,$(basename $<)).lst > $@.new; \ mv -f $@.new $@ =20 targets +=3D $(headers-y) @@ -80,7 +78,7 @@ $(obj)/compat/%.c: $(src)/public/%.h $(srcdir)/xlat.lst $= (srctree)/tools/compat- $(call if_changed,compat_c) =20 targets +=3D $(patsubst compat/%, compat/.xlat/%, $(headers-y)) -$(obj)/compat/.xlat/%.h: $(obj)/compat/%.h $(obj)/compat/.xlat/%.lst $(src= tree)/tools/get-fields.sh FORCE +$(obj)/compat/.xlat/%.h: $(obj)/compat/%.h $(obj)/compat/.xlat/%.lst $(src= tree)/tools/compat-xlat-header FORCE $(call if_changed,xlat_headers) =20 quiet_cmd_xlat_lst =3D GEN $@ diff --git a/xen/tools/compat-xlat-header b/xen/tools/compat-xlat-header new file mode 100755 index 0000000000..f1f42a9dde --- /dev/null +++ b/xen/tools/compat-xlat-header @@ -0,0 +1,539 @@ +#!/usr/bin/perl -w + +use strict; +use warnings; + +open COMPAT_LIST, "<$ARGV[1]" or die "can't open $ARGV[1], $!"; +open HEADER, "<$ARGV[0]" or die "can't open $ARGV[0], $!"; + +my @typedefs; + +my @header_tokens; +while (
) { + next if m/^\s*#.*/; + s/([\]\[,;:{}])/ $1 /g; + s/^\s+//; + push(@header_tokens, split(/\s+/)); +} + +sub get_fields { + my ($looking_for) =3D @_; + my $level =3D 1; + my $aggr =3D 0; + my ($name, @fields); + + foreach (@header_tokens) { + if (/^(struct|union)$/) { + unless ($level !=3D 1) { + $aggr =3D 1; + @fields =3D (); + $name =3D ''; + } + } elsif ($_ eq '{') { + $level++; + } elsif ($_ eq '}') { + $level--; + if ($level =3D=3D 1 and $name eq $looking_for) { + push (@fields, $_); + return @fields; + } + } elsif (/^[a-zA-Z_].*/) { + unless ($aggr =3D=3D 0 or $name ne "") { + $name =3D $_; + } + } + unless ($aggr =3D=3D 0) { + push (@fields, $_); + } + } + return (); +} + +sub get_typedefs { + my $level =3D 1; + my $state =3D 0; + my @typedefs; + foreach (@_) { + if ($_ eq 'typedef') { + unless ($level !=3D 1) { + $state =3D 1; + } + } elsif (m/^COMPAT_HANDLE\(.*\)$/) { + unless ($level !=3D 1 or $state !=3D 1) { + $state =3D 2; + } + } elsif (m/^[\[\{]$/) { + $level++; + } elsif (m/^[\]\}]$/) { + $level--; + } elsif ($_ eq ';') { + unless ($level !=3D 1) { + $state =3D 0; + } + } elsif (m/^[a-zA-Z_].*$/) { + unless ($level !=3D 1 or $state !=3D 2) { + push (@typedefs, $_); + } + } + } + return @typedefs; +} + +sub build_enums { + my ($name, @tokens) =3D @_; + + my $level =3D 1; + my $kind =3D ''; + my $named =3D ''; + my (@fields, @members, $id); + + foreach (@tokens) { + if (m/^(struct|union)$/) { + unless ($level !=3D 2) { + @fields =3D (''); + } + $kind=3D"$_;$kind"; + } elsif ($_ eq '{') { + $level++; + } elsif ($_ eq '}') { + $level--; + if ($level =3D=3D 1) { + my $subkind =3D $kind; + $subkind =3D~ s/;.*//; + if ($subkind eq 'union') { + print "\nenum XLAT_$name {\n"; + foreach (@members) { + print " XLAT_${name}_$_,\n"; + } + print "};\n"; + } + return; + } elsif ($level =3D=3D 2) { + $named =3D '?'; + } + } elsif (/^[a-zA-Z_].*$/) { + $id =3D $_; + my $k =3D $kind; + $k =3D~ s/.*?;//; + if ($named ne '' and $k ne '') { + shift @fields if @fields > 0 and $fields[0] eq ''; + build_enums("${name}_$_", @fields); + $named =3D '!'; + } + } elsif ($_ eq ',') { + unless ($level !=3D 2) { + push (@members, $id); + } + } elsif ($_ eq ';') { + unless ($level !=3D 2) { + push (@members, $id); + } + unless ($named eq '') { + $kind =3D~ s/.*?;//; + } + $named =3D ''; + } + unless (@fields =3D=3D 0) { + push (@fields, $_); + } + } +} + +sub handle_field { + my ($prefix, $name, $id, $type, @fields) =3D @_; + + if (@fields =3D=3D 0) { + print " \\\n"; + if ($type eq '') { + print "$prefix\(_d_)->$id =3D (_s_)->$id;" + } else { + my $k =3D $id; + $k =3D~ s/\./_/g; + print "${prefix}XLAT_${name}_HNDL_${k}(_d_, _s_);"; + } + } elsif ("@fields" !~ m/[{}]/) { + my $tag =3D "@fields"; + $tag =3D~ s/\s*(struct|union)\s+(compat_)?(\w+)\s.*/$3/; + print " \\\n"; + print "${prefix}XLAT_$tag(&(_d_)->$id, &(_s_)->$id);" + } else { + my $func_id =3D $id; + my @func_tokens =3D @fields; + my $kind =3D ''; + my $array =3D ""; + my $level =3D 1; + my $arrlvl =3D 1; + my $array_type =3D ''; + my $id =3D ''; + my $type =3D ''; + @fields =3D (); + foreach (@func_tokens) { + if (/^(struct|union)$/) { + unless ($level !=3D 2) { + @fields =3D (''); + } + if ($level =3D=3D 1) { + $kind =3D $_; + if ($kind eq 'union') { + my $tmp =3D $func_id; + $tmp =3D~ s/\./_/g; + print " \\\n"; + print "${prefix}switch ($tmp) {" + } + } + } elsif ($_ eq '{') { + $level++; + $id =3D ''; + } elsif ($_ eq '}') { + $level--; + $id =3D ''; + if ($level =3D=3D 1 and $kind eq 'union') { + print " \\\n"; + print "$prefix}" + } + } elsif ($_ eq '[') { + if ($level !=3D 2 or $arrlvl !=3D 1) { + # skip + } elsif ($array eq '') { + $array =3D ' '; + } else { + $array =3D "$array;"; + } + $arrlvl++; + } elsif ($_ eq ']') { + $arrlvl--; + } elsif (m/^COMPAT_HANDLE\((.*)\)$/) { + if ($level =3D=3D 2 and $id eq '') { + $type =3D $1; + $type =3D~ s/^compat_//; + } + } elsif ($_ eq "compat_domain_handle_t") { + if ($level =3D=3D 2 and $id eq '') { + $array_type =3D $_; + } + } elsif (m/^[a-zA-Z_].*$/) { + if ($id eq '' and $type eq '' and $array_type eq '') { + foreach $id (@typedefs) { + unless ($id ne $_) { + $type =3D $id; + } + } + if ($type eq '') { + $id =3D $_; + } else { + $id =3D ''; + } + } else { + $id =3D $_; + } + } elsif (m/^[,;]$/) { + if ($level =3D=3D 2 and $id !~ /^_pad\d*$/) { + if ($kind eq 'union') { + my $tmp =3D "$func_id.$id"; + $tmp =3D~ s/\./_/g; + print " \\\n"; + print "${prefix}case XLAT_${name}_$tmp:"; + shift @fields if @fields > 0 and $fields[0] eq ''; + handle_field("$prefix ", $name, "$func_id.$id"= , $type, @fields); + } elsif ($array eq '' and $array_type eq '') { + shift @fields if @fields > 0 and $fields[0] eq ''; + handle_field($prefix, $name, "$func_id.$id", $type= , @fields); + } elsif ($array eq '') { + copy_array(" ", "$func_id.$id"); + } else { + $array =3D~ s/^.*?;//; + shift @fields if @fields > 0 and $fields[0] eq ''; + handle_array($prefix, $name, "$func_id.$id", $arra= y, $type, @fields); + } + unless ($_ ne ';') { + @fields =3D (); + $id =3D ''; + $type =3D ''; + } + $array =3D ''; + if ($kind eq 'union') { + print " \\\n"; + print "$prefix break;"; + } + } + } else { + if ($array ne '') { + $array =3D "$array $_"; + } + } + unless (@fields =3D=3D 0) { + push (@fields, $_); + } + } + } +} + +sub copy_array { + my ($prefix, $id) =3D @_; + + print " \\\n"; + print "${prefix}if ((_d_)->$id !=3D (_s_)->$id) \\\n"; + print "$prefix memcpy((_d_)->$id, (_s_)->$id, sizeof((_d_)->$id));= "; +} + +sub handle_array { + my ($prefix, $name, $id, $array, $type, @fields) =3D @_; + + my $i =3D $array; + $i =3D~ s/[^;]//g; + $i =3D length($i); + $i =3D "i$i"; + + print " \\\n"; + print "$prefix\{ \\\n"; + print "$prefix unsigned int $i; \\\n"; + my $tmp =3D $array; + $tmp =3D~ s/;.*$//; + $tmp =3D~ s/^\s*(.*)\s*$/$1/; + print "$prefix for ($i =3D 0; $i < $tmp; ++$i) {"; + if ($array !~ m/^.*?;/) { + handle_field("$prefix ", $name, "$id\[$i]", $type, @fields); + } else { + handle_array("$prefix " ,$name, "$id\[$i]", $', $type, @fie= lds); + } + print " \\\n"; + print "$prefix } \\\n"; + print "$prefix\}"; +} + +sub build_body { + my ($name, @tokens) =3D @_; + my $level =3D 1; + my $id =3D ''; + my $array =3D ''; + my $arrlvl =3D 1; + my $array_type =3D ''; + my $type =3D ''; + my @fields; + + printf "\n#define XLAT_$name(_d_, _s_) do {"; + + foreach (@tokens) { + if (/^(struct|union)$/) { + unless ($level !=3D 2) { + @fields =3D (''); + } + } elsif ($_ eq '{') { + $level++; + $id =3D ''; + } elsif ($_ eq '}') { + $level--; + $id =3D ''; + } elsif ($_ eq '[') { + if ($level !=3D 2 or $arrlvl !=3D 1) { + # skip + } elsif ($array eq '') { + $array =3D ' '; + } else { + $array =3D "$array;"; + } + $arrlvl++; + } elsif ($_ eq ']') { + $arrlvl--; + } elsif (m/^COMPAT_HANDLE\((.*)\)$/) { + if ($level =3D=3D 2 and $id eq '') { + $type =3D $1; + $type =3D~ s/^compat_//; + } + } elsif ($_ eq "compat_domain_handle_t") { + if ($level =3D=3D 2 and $id eq '') { + $array_type =3D $_; + } + } elsif (m/^[a-zA-Z_].*$/) { + if ($array ne '') { + $array =3D "$array $_"; + } elsif ($id eq '' and $type eq '' and $array_type eq '') { + foreach $id (@typedefs) { + unless ($id eq $_) { + $type =3D $id; + } + } + if ($type eq '') { + $id =3D $_; + } else { + $id =3D ''; + } + } else { + $id =3D $_; + } + } elsif (m/^[,;]$/) { + if ($level =3D=3D 2 and $id !~ /^_pad\d*$/) { + if ($array eq '' and $array_type eq '') { + shift @fields if @fields > 0 and $fields[0] eq ''; + handle_field(" ", $name, $id, $type, @fields); + } elsif ($array eq '') { + copy_array(" ", $id); + } else { + my $tmp =3D $array; + $tmp =3D~ s/^.*?;//; + shift @fields if @fields > 0 and $fields[0] eq ''; + handle_array(" ", $name, $id, $tmp, $type, @fields); + } + unless ($_ ne ';') { + @fields =3D (); + $id =3D ''; + $type =3D ''; + } + $array =3D ''; + } + } else { + if ($array ne '') { + $array =3D "$array $_"; + } + } + unless (@fields =3D=3D 0) { + push (@fields, $_); + } + } + print " \\\n} while (0)\n"; +} + +sub check_field { + my ($kind, $name, $field, @extrafields) =3D @_; + + if ("@extrafields" !~ m/[{}]/) { + print "; \\\n"; + if (@extrafields !=3D 0) { + foreach (@extrafields) { + if (m/^(struct|union)$/) { + # skip + } elsif (m/^[a-zA-Z_].*/) { + s/^xen_//; + print " CHECK_$_"; + last; + } else { + die "Malformed compound declaration: '$_'"; + } + } + } elsif ($field !~ m/\./) { + print " CHECK_FIELD_($kind, $name, $field)"; + } else { + my $n =3D $field =3D~ s/\./, /g; + print " CHECK_SUBFIELD_${n}_($kind, $name, $field)"; + } + } else { + my $level =3D 1; + my @fields =3D (); + my $id =3D ''; + + foreach (@extrafields) { + if (m/^(struct|union)$/) { + unless ($level !=3D 2) { + @fields =3D (''); + } + } elsif ($_ eq '{') { + $level++; + $id =3D ''; + } elsif ($_ eq '}') { + $level--; + $id =3D ''; + } elsif (/^compat_.*_t$/) { + if ($level =3D=3D 2) { + @fields =3D (''); + s/_t$//; + s/^compat_//; + } + } elsif (/^evtchn_.*_compat_t$/) { + if ($level =3D=3D 2 and $_ ne "evtchn_port_compat_t") { + @fields =3D (''); + s/_compat_t$//; + } + } elsif (/^[a-zA-Z_].*$/) { + $id =3D $_; + } elsif (/^[,;]$/) { + if ($level =3D=3D 2 and $id !~ /^_pad\d*$/) { + shift @fields if @fields > 0 and $fields[0] eq ''; + check_field($kind, $name, "$field.$id", @fields); + unless ($_ ne ";") { + @fields =3D (); + $id =3D ''; + } + } + } + unless (@fields =3D=3D 0) { + push (@fields, $_); + } + } + } +} + +sub build_check { + my ($name, @tokens) =3D @_; + my $level =3D 1; + my (@fields, $kind, $id); + my $arrlvl =3D 1; + + print "\n"; + print "#define CHECK_$name \\\n"; + + foreach (@tokens) { + if (/^(struct|union)$/) { + if ($level =3D=3D 1) { + $kind =3D $_; + print " CHECK_SIZE_($kind, $name)"; + } elsif ($level =3D=3D 2) { + @fields =3D (''); + } + } elsif ($_ eq '{') { + $level++; + $id =3D ''; + } elsif ($_ eq '}') { + $level--; + $id =3D ''; + } elsif ($_ eq '[') { + $arrlvl++; + } elsif ($_ eq ']') { + $arrlvl--; + } elsif (/^compat_.*_t$/) { + if ($level =3D=3D 2 and $_ ne "compat_argo_port_t") { + @fields =3D (''); + s/_t$//; + s/^compat_//; + } + } elsif (/^[a-zA-Z_].*$/) { + unless ($level !=3D 2 or $arrlvl !=3D 1) { + $id =3D $_; + } + } elsif (/^[,;]$/) { + if ($level =3D=3D 2 and $id !~ /^_pad\d*$/) { + shift @fields if @fields > 0 and $fields[0] eq ''; + check_field($kind, $name, $id, @fields); + unless ($_ ne ";") { + @fields =3D (); + $id =3D ''; + } + } + } + + unless (@fields =3D=3D 0) { + push (@fields, $_); + } + } + print "\n"; +} + +@typedefs =3D get_typedefs(@header_tokens); + +while () { + my ($what, $name) =3D split(/\s+/, $_); + $name =3D~ s/^xen//; + + my @fields =3D get_fields("compat_$name"); + if (@fields =3D=3D 0) { + die "Fields of 'compat_$name' not found in '$ARGV[1]'"; + } + + if ($what eq "!") { + build_enums($name, @fields); + build_body($name, @fields); + } elsif ($what eq "?") { + build_check($name, @fields); + } else { + die "Invalid translation indicator: '$what'"; + } +} diff --git a/xen/tools/get-fields.sh b/xen/tools/get-fields.sh deleted file mode 100644 index 002db2093f..0000000000 --- a/xen/tools/get-fields.sh +++ /dev/null @@ -1,528 +0,0 @@ -test -n "$1" -a -n "$2" -a -n "$3" -set -ef - -SED=3Dsed -if test -x /usr/xpg4/bin/sed; then - SED=3D/usr/xpg4/bin/sed -fi -if test -z ${PYTHON}; then - PYTHON=3D`/usr/bin/env python` -fi -if test -z ${PYTHON}; then - echo "Python not found" - exit 1 -fi - -get_fields () -{ - local level=3D1 aggr=3D0 name=3D fields=3D - for token in $2 - do - case "$token" in - struct|union) - test $level !=3D 1 || aggr=3D1 fields=3D name=3D - ;; - "{") - level=3D$(expr $level + 1) - ;; - "}") - level=3D$(expr $level - 1) - if [ $level =3D 1 -a $name =3D $1 ] - then - echo "$fields }" - return 0 - fi - ;; - [a-zA-Z_]*) - test $aggr =3D 0 -o -n "$name" || name=3D"$token" - ;; - esac - test $aggr =3D 0 || fields=3D"$fields $token" - done -} - -get_typedefs () -{ - local level=3D1 state=3D - for token in $1 - do - case "$token" in - typedef) - test $level !=3D 1 || state=3D1 - ;; - COMPAT_HANDLE\(*\)) - test $level !=3D 1 -o "$state" !=3D 1 || state=3D2 - ;; - [\{\[]) - level=3D$(expr $level + 1) - ;; - [\}\]]) - level=3D$(expr $level - 1) - ;; - ";") - test $level !=3D 1 || state=3D - ;; - [a-zA-Z_]*) - test $level !=3D 1 -o "$state" !=3D 2 || echo "$token" - ;; - esac - done -} - -build_enums () -{ - local level=3D1 kind=3D fields=3D members=3D named=3D id=3D token - for token in $2 - do - case "$token" in - struct|union) - test $level !=3D 2 || fields=3D" " - kind=3D"$token;$kind" - ;; - "{") - level=3D$(expr $level + 1) - ;; - "}") - level=3D$(expr $level - 1) - if [ $level =3D 1 ] - then - if [ "${kind%%;*}" =3D union ] - then - echo - echo "enum XLAT_$1 {" - for m in $members - do - echo " XLAT_${1}_$m," - done - echo "};" - fi - return 0 - elif [ $level =3D 2 ] - then - named=3D'?' - fi - ;; - [a-zA-Z]*) - id=3D$token - if [ -n "$named" -a -n "${kind#*;}" ] - then - build_enums ${1}_$token "$fields" - named=3D'!' - fi - ;; - ",") - test $level !=3D 2 || members=3D"$members $id" - ;; - ";") - test $level !=3D 2 || members=3D"$members $id" - test -z "$named" || kind=3D${kind#*;} - named=3D - ;; - esac - test -z "$fields" || fields=3D"$fields $token" - done -} - -handle_field () -{ - if [ -z "$5" ] - then - echo " \\" - if [ -z "$4" ] - then - printf %s "$1(_d_)->$3 =3D (_s_)->$3;" - else - printf %s "$1XLAT_${2}_HNDL_$(echo $3 | $SED 's,\.,_,g')(_d_, _s_);" - fi - elif [ -z "$(echo "$5" | $SED 's,[^{}],,g')" ] - then - local tag=3D$(echo "$5" | ${PYTHON} -c ' -import re,sys -for line in sys.stdin.readlines(): - sys.stdout.write(re.subn(r"\s*(struct|union)\s+(compat_)?(\w+)\s.*", r= "\3", line)[0].rstrip() + "\n") -') - echo " \\" - printf %s "${1}XLAT_$tag(&(_d_)->$3, &(_s_)->$3);" - else - local level=3D1 kind=3D fields=3D id=3D array=3D arrlvl=3D1 array_type= =3D type=3D token - for token in $5 - do - case "$token" in - struct|union) - test $level !=3D 2 || fields=3D" " - if [ $level =3D 1 ] - then - kind=3D$token - if [ $kind =3D union ] - then - echo " \\" - printf %s "${1}switch ($(echo $3 | $SED 's,\.,_,g')) {" - fi - fi - ;; - "{") - level=3D$(expr $level + 1) id=3D - ;; - "}") - level=3D$(expr $level - 1) id=3D - if [ $level =3D 1 -a $kind =3D union ] - then - echo " \\" - printf %s "$1}" - fi - ;; - "[") - if [ $level !=3D 2 -o $arrlvl !=3D 1 ] - then - : - elif [ -z "$array" ] - then - array=3D" " - else - array=3D"$array;" - fi - arrlvl=3D$(expr $arrlvl + 1) - ;; - "]") - arrlvl=3D$(expr $arrlvl - 1) - ;; - COMPAT_HANDLE\(*\)) - if [ $level =3D 2 -a -z "$id" ] - then - type=3D${token#COMPAT_HANDLE?} - type=3D${type%?} - type=3D${type#compat_} - fi - ;; - compat_domain_handle_t) - if [ $level =3D 2 -a -z "$id" ] - then - array_type=3D$token - fi - ;; - [a-zA-Z]*) - if [ -z "$id" -a -z "$type" -a -z "$array_type" ] - then - for id in $typedefs - do - test $id !=3D "$token" || type=3D$id - done - if [ -z "$type" ] - then - id=3D$token - else - id=3D - fi - else - id=3D$token - fi - ;; - [\,\;]) - if [ $level =3D 2 -a -n "$(echo $id | $SED 's,^_pad[[:digit:]]*,,')" ] - then - if [ $kind =3D union ] - then - echo " \\" - printf %s "${1}case XLAT_${2}_$(echo $3.$id | $SED 's,\.,_,g'):" - handle_field "$1 " $2 $3.$id "$type" "$fields" - elif [ -z "$array" -a -z "$array_type" ] - then - handle_field "$1" $2 $3.$id "$type" "$fields" - elif [ -z "$array" ] - then - copy_array " " $3.$id - else - handle_array "$1" $2 $3.$id "${array#*;}" "$type" "$fields" - fi - test "$token" !=3D ";" || fields=3D id=3D type=3D - array=3D - if [ $kind =3D union ] - then - echo " \\" - printf %s "$1 break;" - fi - fi - ;; - *) - if [ -n "$array" ] - then - array=3D"$array $token" - fi - ;; - esac - test -z "$fields" || fields=3D"$fields $token" - done - fi -} - -copy_array () -{ - echo " \\" - echo "${1}if ((_d_)->$2 !=3D (_s_)->$2) \\" - printf %s "$1 memcpy((_d_)->$2, (_s_)->$2, sizeof((_d_)->$2));" -} - -handle_array () -{ - local i=3D"i$(echo $4 | $SED 's,[^;], ,g' | wc -w | $SED 's,[[:space:]]*,= ,g')" - echo " \\" - echo "$1{ \\" - echo "$1 unsigned int $i; \\" - printf %s "$1 for ($i =3D 0; $i < "${4%%;*}"; ++$i) {" - if [ "$4" =3D "${4#*;}" ] - then - handle_field "$1 " $2 $3[$i] "$5" "$6" - else - handle_array "$1 " $2 $3[$i] "${4#*;}" "$5" "$6" - fi - echo " \\" - echo "$1 } \\" - printf %s "$1}" -} - -build_body () -{ - echo - printf %s "#define XLAT_$1(_d_, _s_) do {" - local level=3D1 fields=3D id=3D array=3D arrlvl=3D1 array_type=3D type=3D= token - for token in $2 - do - case "$token" in - struct|union) - test $level !=3D 2 || fields=3D" " - ;; - "{") - level=3D$(expr $level + 1) id=3D - ;; - "}") - level=3D$(expr $level - 1) id=3D - ;; - "[") - if [ $level !=3D 2 -o $arrlvl !=3D 1 ] - then - : - elif [ -z "$array" ] - then - array=3D" " - else - array=3D"$array;" - fi - arrlvl=3D$(expr $arrlvl + 1) - ;; - "]") - arrlvl=3D$(expr $arrlvl - 1) - ;; - COMPAT_HANDLE\(*\)) - if [ $level =3D 2 -a -z "$id" ] - then - type=3D${token#COMPAT_HANDLE?} - type=3D${type%?} - type=3D${type#compat_} - fi - ;; - compat_domain_handle_t) - if [ $level =3D 2 -a -z "$id" ] - then - array_type=3D$token - fi - ;; - [a-zA-Z_]*) - if [ -n "$array" ] - then - array=3D"$array $token" - elif [ -z "$id" -a -z "$type" -a -z "$array_type" ] - then - for id in $typedefs - do - test $id !=3D "$token" || type=3D$id - done - if [ -z "$type" ] - then - id=3D$token - else - id=3D - fi - else - id=3D$token - fi - ;; - [\,\;]) - if [ $level =3D 2 -a -n "$(echo $id | $SED 's,^_pad[[:digit:]]*,,')" ] - then - if [ -z "$array" -a -z "$array_type" ] - then - handle_field " " $1 $id "$type" "$fields" - elif [ -z "$array" ] - then - copy_array " " $id - else - handle_array " " $1 $id "${array#*;}" "$type" "$fields" - fi - test "$token" !=3D ";" || fields=3D id=3D type=3D - array=3D - fi - ;; - *) - if [ -n "$array" ] - then - array=3D"$array $token" - fi - ;; - esac - test -z "$fields" || fields=3D"$fields $token" - done - echo " \\" - echo "} while (0)" -} - -check_field () -{ - if [ -z "$(echo "$4" | $SED 's,[^{}],,g')" ] - then - echo "; \\" - local n=3D$(echo $3 | $SED 's,[^.], ,g' | wc -w | $SED 's,[[:space:]]*,,= g') - if [ -n "$4" ] - then - for n in $4 - do - case $n in - struct|union) - ;; - [a-zA-Z_]*) - printf %s " CHECK_${n#xen_}" - break - ;; - *) - echo "Malformed compound declaration: '$n'" >&2 - exit 1 - ;; - esac - done - elif [ $n =3D 0 ] - then - printf %s " CHECK_FIELD_($1, $2, $3)" - else - printf %s " CHECK_SUBFIELD_${n}_($1, $2, $(echo $3 | $SED 's!\.!, !g= '))" - fi - else - local level=3D1 fields=3D id=3D token - for token in $4 - do - case "$token" in - struct|union) - test $level !=3D 2 || fields=3D" " - ;; - "{") - level=3D$(expr $level + 1) id=3D - ;; - "}") - level=3D$(expr $level - 1) id=3D - ;; - compat_*_t) - if [ $level =3D 2 ] - then - fields=3D" " - token=3D"${token%_t}" - token=3D"${token#compat_}" - fi - ;; - evtchn_*_compat_t) - if [ $level =3D 2 -a $token !=3D evtchn_port_compat_t ] - then - fields=3D" " - token=3D"${token%_compat_t}" - fi - ;; - [a-zA-Z]*) - id=3D$token - ;; - [\,\;]) - if [ $level =3D 2 -a -n "$(echo $id | $SED 's,^_pad[[:digit:]]*,,')" ] - then - check_field $1 $2 $3.$id "$fields" - test "$token" !=3D ";" || fields=3D id=3D - fi - ;; - esac - test -z "$fields" || fields=3D"$fields $token" - done - fi -} - -build_check () -{ - echo - echo "#define CHECK_$1 \\" - local level=3D1 fields=3D kind=3D id=3D arrlvl=3D1 token - for token in $2 - do - case "$token" in - struct|union) - if [ $level =3D 1 ] - then - kind=3D$token - printf %s " CHECK_SIZE_($kind, $1)" - elif [ $level =3D 2 ] - then - fields=3D" " - fi - ;; - "{") - level=3D$(expr $level + 1) id=3D - ;; - "}") - level=3D$(expr $level - 1) id=3D - ;; - "[") - arrlvl=3D$(expr $arrlvl + 1) - ;; - "]") - arrlvl=3D$(expr $arrlvl - 1) - ;; - compat_*_t) - if [ $level =3D 2 -a $token !=3D compat_argo_port_t ] - then - fields=3D" " - token=3D"${token%_t}" - token=3D"${token#compat_}" - fi - ;; - [a-zA-Z_]*) - test $level !=3D 2 -o $arrlvl !=3D 1 || id=3D$token - ;; - [\,\;]) - if [ $level =3D 2 -a -n "$(echo $id | $SED 's,^_pad[[:digit:]]*,,')" ] - then - check_field $kind $1 $id "$fields" - test "$token" !=3D ";" || fields=3D id=3D - fi - ;; - esac - test -z "$fields" || fields=3D"$fields $token" - done - echo "" -} - -list=3D"$($SED -e 's,^[[:space:]]#.*,,' -e 's!\([]\[,;:{}]\)! \1 !g' $3)" -fields=3D"$(get_fields $(echo $2 | $SED 's,^compat_xen,compat_,') "$list")" -if [ -z "$fields" ] -then - echo "Fields of '$2' not found in '$3'" >&2 - exit 1 -fi -name=3D${2#compat_} -name=3D${name#xen} -case "$1" in -"!") - typedefs=3D"$(get_typedefs "$list")" - build_enums $name "$fields" - build_body $name "$fields" - ;; -"?") - build_check $name "$fields" - ;; -*) - echo "Invalid translation indicator: '$1'" >&2 - exit 1 - ;; -esac --=20 Anthony PERARD From nobody Sun May 19 08:30:54 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; 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d="scan'208";a="72647996" From: Anthony PERARD To: CC: Anthony PERARD , Andrew Cooper , George Dunlap , "Jan Beulich" , Julien Grall , "Stefano Stabellini" , Wei Liu Subject: [XEN PATCH 4/4] build: remove auto.conf prerequisite from compat/xlat.h target Date: Wed, 1 Jun 2022 17:59:09 +0100 Message-ID: <20220601165909.46588-5-anthony.perard@citrix.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220601165909.46588-1-anthony.perard@citrix.com> References: <20220601165909.46588-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1654102794514100005 Content-Type: text/plain; charset="utf-8" Now that the command line generating "xlat.h" is check on rebuild, the header will be regenerated whenever the list of xlat headers changes due to change in ".config". We don't need to force a regeneration for every changes in ".config". Signed-off-by: Anthony PERARD Acked-by: Jan Beulich --- xen/include/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/include/Makefile b/xen/include/Makefile index b7e7148665..937a8bc884 100644 --- a/xen/include/Makefile +++ b/xen/include/Makefile @@ -99,7 +99,7 @@ cmd_xlat_h =3D \ cat $(filter %.h,$^) >$@.new; \ mv -f $@.new $@ =20 -$(obj)/compat/xlat.h: $(addprefix $(obj)/compat/.xlat/,$(xlat-y)) $(obj)/c= onfig/auto.conf FORCE +$(obj)/compat/xlat.h: $(addprefix $(obj)/compat/.xlat/,$(xlat-y)) FORCE $(call if_changed,xlat_h) =20 ifeq ($(XEN_TARGET_ARCH),$(XEN_COMPILE_ARCH)) --=20 Anthony PERARD