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d="scan'208";a="113786839" From: Anthony PERARD To: CC: Anthony PERARD , Jason Andryuk , Andrew Cooper , "George Dunlap" , Jan Beulich , "Julien Grall" , Stefano Stabellini , Wei Liu Subject: [XEN PATCH v2 1/5] build: define ARCH and SRCARCH later Date: Thu, 22 Jun 2023 16:30:01 +0100 Message-ID: <20230622153005.31604-2-anthony.perard@citrix.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230622153005.31604-1-anthony.perard@citrix.com> References: <20230622153005.31604-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1687447995769100001 Content-Type: text/plain; charset="utf-8" Defining ARCH and SRCARCH later in xen/Makefile allows to switch to immediate evaluation variable type. ARCH and SRCARCH depends on value defined in Config.mk and aren't used TARGET_SUBARCH or TARGET_ARCH, and not before it's needed in a sub-make or a rule. This will help reduce the number of times the shell rune is been run. With GNU make 4.4, the number of execution of the command present in these $(shell ) increased greatly. This is probably because as of make 4.4, exported variable are also added to the environment of $(shell ) construct. Also, `make -d` shows a lot of these: Makefile:39: not recursively expanding SRCARCH to export to shell funct= ion Makefile:38: not recursively expanding ARCH to export to shell function Reported-by: Jason Andryuk Signed-off-by: Anthony PERARD Tested-by: Jason Andryuk Reviewed-by: Jan Beulich --- Notes: v2: - change quoting style - change identation xen/Makefile | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/xen/Makefile b/xen/Makefile index e89fc461fc..78d176f04e 100644 --- a/xen/Makefile +++ b/xen/Makefile @@ -35,12 +35,6 @@ MAKEFLAGS +=3D -rR =20 EFI_MOUNTPOINT ?=3D $(BOOT_DIR)/efi =20 -ARCH=3D$(XEN_TARGET_ARCH) -SRCARCH=3D$(shell echo $(ARCH) | \ - sed -e 's/x86.*/x86/' -e s'/arm\(32\|64\)/arm/g' \ - -e s'/riscv.*/riscv/g') -export ARCH SRCARCH - # Allow someone to change their config file export KCONFIG_CONFIG ?=3D .config =20 @@ -241,6 +235,13 @@ include scripts/Kbuild.include include $(XEN_ROOT)/Config.mk =20 # Set ARCH/SUBARCH appropriately. + +ARCH :=3D $(XEN_TARGET_ARCH) +SRCARCH :=3D $(shell echo $(ARCH) | \ + sed -e 's/x86.*/x86/' -e 's/arm\(32\|64\)/arm/g' \ + -e 's/riscv.*/riscv/g') +export ARCH SRCARCH + export TARGET_SUBARCH :=3D $(XEN_TARGET_ARCH) export TARGET_ARCH :=3D $(shell echo $(XEN_TARGET_ARCH) | \ sed -e 's/x86.*/x86/' -e s'/arm\(32\|64\)/arm/= g' \ --=20 Anthony PERARD From nobody Mon May 13 05:16:33 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="116317366" From: Anthony PERARD To: CC: Anthony PERARD , Andrew Cooper , George Dunlap , "Jan Beulich" , Julien Grall , "Stefano Stabellini" , Wei Liu Subject: [XEN PATCH v2 2/5] build: remove TARGET_SUBARCH, a duplicate of ARCH Date: Thu, 22 Jun 2023 16:30:02 +0100 Message-ID: <20230622153005.31604-3-anthony.perard@citrix.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230622153005.31604-1-anthony.perard@citrix.com> References: <20230622153005.31604-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1687448003557100001 Content-Type: text/plain; charset="utf-8" Signed-off-by: Anthony PERARD Reviewed-by: Jan Beulich Tested-by: Jason Andryuk --- Notes: v2: - new patch xen/Makefile | 3 +-- xen/build.mk | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/xen/Makefile b/xen/Makefile index 78d176f04e..bc639a1f80 100644 --- a/xen/Makefile +++ b/xen/Makefile @@ -234,7 +234,7 @@ include scripts/Kbuild.include # we need XEN_TARGET_ARCH to generate the proper config include $(XEN_ROOT)/Config.mk =20 -# Set ARCH/SUBARCH appropriately. +# Set ARCH/SRCARCH appropriately. =20 ARCH :=3D $(XEN_TARGET_ARCH) SRCARCH :=3D $(shell echo $(ARCH) | \ @@ -242,7 +242,6 @@ SRCARCH :=3D $(shell echo $(ARCH) | \ -e 's/riscv.*/riscv/g') export ARCH SRCARCH =20 -export TARGET_SUBARCH :=3D $(XEN_TARGET_ARCH) export TARGET_ARCH :=3D $(shell echo $(XEN_TARGET_ARCH) | \ sed -e 's/x86.*/x86/' -e s'/arm\(32\|64\)/arm/= g' \ -e s'/riscv.*/riscv/g') diff --git a/xen/build.mk b/xen/build.mk index 30d74d4772..7e33e710fd 100644 --- a/xen/build.mk +++ b/xen/build.mk @@ -41,7 +41,7 @@ include/xen/compile.h: include/xen/compile.h.in .banner F= ORCE targets +=3D include/xen/compile.h =20 -include $(wildcard .asm-offsets.s.d) -asm-offsets.s: arch/$(TARGET_ARCH)/$(TARGET_SUBARCH)/asm-offsets.c +asm-offsets.s: arch/$(TARGET_ARCH)/$(ARCH)/asm-offsets.c $(CC) $(call cpp_flags,$(c_flags)) -S -g0 -o $@.new -MQ $@ $< $(call move-if-changed,$@.new,$@) =20 --=20 Anthony PERARD From nobody Mon May 13 05:16:33 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="112500242" From: Anthony PERARD To: CC: Anthony PERARD , Andrew Cooper , George Dunlap , "Jan Beulich" , Julien Grall , "Stefano Stabellini" , Wei Liu , Bob Eshleman , Alistair Francis , Connor Davis Subject: [XEN PATCH v2 3/5] build: remove TARGET_ARCH, a duplicates of SRCARCH Date: Thu, 22 Jun 2023 16:30:03 +0100 Message-ID: <20230622153005.31604-4-anthony.perard@citrix.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230622153005.31604-1-anthony.perard@citrix.com> References: <20230622153005.31604-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1687448004293100003 Content-Type: text/plain; charset="utf-8" The same command is used to generate the value of both $(TARGET_ARCH) and $(SRCARCH), as $(ARCH) is an alias for $(XEN_TARGET_ARCH). Signed-off-by: Anthony PERARD Reviewed-by: Jan Beulich Tested-by: Jason Andryuk --- Notes: v2: - new patch xen/Makefile | 18 +++++++----------- xen/Rules.mk | 2 +- xen/arch/riscv/arch.mk | 2 +- xen/build.mk | 6 +++--- 4 files changed, 12 insertions(+), 16 deletions(-) diff --git a/xen/Makefile b/xen/Makefile index bc639a1f80..ac2765050b 100644 --- a/xen/Makefile +++ b/xen/Makefile @@ -242,10 +242,6 @@ SRCARCH :=3D $(shell echo $(ARCH) | \ -e 's/riscv.*/riscv/g') export ARCH SRCARCH =20 -export TARGET_ARCH :=3D $(shell echo $(XEN_TARGET_ARCH) | \ - sed -e 's/x86.*/x86/' -e s'/arm\(32\|64\)/arm/= g' \ - -e s'/riscv.*/riscv/g') - export CONFIG_SHELL :=3D $(SHELL) export CC CXX LD NM OBJCOPY OBJDUMP ADDR2LINE export YACC =3D $(if $(BISON),$(BISON),bison) @@ -262,7 +258,7 @@ export XEN_TREEWIDE_CFLAGS :=3D $(CFLAGS) ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) CLANG_FLAGS :=3D =20 -ifeq ($(TARGET_ARCH),x86) +ifeq ($(SRCARCH),x86) # The tests to select whether the integrated assembler is usable need to h= appen # before testing any assembler features, or else the result of the tests w= ould # be stale if the integrated assembler is not used. @@ -430,22 +426,22 @@ endif =20 ifdef building_out_of_srctree CFLAGS +=3D -I$(objtree)/include - CFLAGS +=3D -I$(objtree)/arch/$(TARGET_ARCH)/include + CFLAGS +=3D -I$(objtree)/arch/$(SRCARCH)/include endif CFLAGS +=3D -I$(srctree)/include -CFLAGS +=3D -I$(srctree)/arch/$(TARGET_ARCH)/include +CFLAGS +=3D -I$(srctree)/arch/$(SRCARCH)/include =20 # Note that link order matters! ALL_OBJS-y :=3D common/built_in.o ALL_OBJS-y +=3D drivers/built_in.o ALL_OBJS-y +=3D lib/built_in.o ALL_OBJS-y +=3D xsm/built_in.o -ALL_OBJS-y +=3D arch/$(TARGET_ARCH)/built_in.o +ALL_OBJS-y +=3D arch/$(SRCARCH)/built_in.o ALL_OBJS-$(CONFIG_CRYPTO) +=3D crypto/built_in.o =20 ALL_LIBS-y :=3D lib/lib.a =20 -include $(srctree)/arch/$(TARGET_ARCH)/arch.mk +include $(srctree)/arch/$(SRCARCH)/arch.mk =20 # define new variables to avoid the ones defined in Config.mk export XEN_CFLAGS :=3D $(CFLAGS) @@ -588,8 +584,8 @@ $(TARGET): outputmakefile FORCE $(Q)$(MAKE) $(build)=3Dtools $(Q)$(MAKE) $(build)=3D. include/xen/compile.h $(Q)$(MAKE) $(build)=3Dinclude all - $(Q)$(MAKE) $(build)=3Darch/$(TARGET_ARCH) include - $(Q)$(MAKE) $(build)=3D. arch/$(TARGET_ARCH)/include/asm/asm-offsets.h + $(Q)$(MAKE) $(build)=3Darch/$(SRCARCH) include + $(Q)$(MAKE) $(build)=3D. arch/$(SRCARCH)/include/asm/asm-offsets.h $(Q)$(MAKE) $(build)=3D. MKRELOC=3D$(MKRELOC) 'ALL_OBJS=3D$(ALL_OBJS-y)' = 'ALL_LIBS=3D$(ALL_LIBS-y)' $@ =20 SUBDIRS =3D xsm arch common crypto drivers lib test diff --git a/xen/Rules.mk b/xen/Rules.mk index 59072ae8df..8af3dd7277 100644 --- a/xen/Rules.mk +++ b/xen/Rules.mk @@ -180,7 +180,7 @@ cpp_flags =3D $(filter-out -Wa$(comma)% -flto,$(1)) c_flags =3D -MMD -MP -MF $(depfile) $(XEN_CFLAGS) a_flags =3D -MMD -MP -MF $(depfile) $(XEN_AFLAGS) =20 -include $(srctree)/arch/$(TARGET_ARCH)/Rules.mk +include $(srctree)/arch/$(SRCARCH)/Rules.mk =20 c_flags +=3D $(_c_flags) a_flags +=3D $(_c_flags) diff --git a/xen/arch/riscv/arch.mk b/xen/arch/riscv/arch.mk index 7448f759b4..8403f96b6f 100644 --- a/xen/arch/riscv/arch.mk +++ b/xen/arch/riscv/arch.mk @@ -15,5 +15,5 @@ riscv-march-$(CONFIG_RISCV_ISA_C) :=3D $(riscv-marc= h-y)c CFLAGS +=3D -march=3D$(riscv-march-y) -mstrict-align -mcmodel=3Dmedany =20 # TODO: Drop override when more of the build is working -override ALL_OBJS-y =3D arch/$(TARGET_ARCH)/built_in.o +override ALL_OBJS-y =3D arch/$(SRCARCH)/built_in.o override ALL_LIBS-y =3D diff --git a/xen/build.mk b/xen/build.mk index 7e33e710fd..26dd5a8e87 100644 --- a/xen/build.mk +++ b/xen/build.mk @@ -41,11 +41,11 @@ include/xen/compile.h: include/xen/compile.h.in .banner= FORCE targets +=3D include/xen/compile.h =20 -include $(wildcard .asm-offsets.s.d) -asm-offsets.s: arch/$(TARGET_ARCH)/$(ARCH)/asm-offsets.c +asm-offsets.s: arch/$(SRCARCH)/$(ARCH)/asm-offsets.c $(CC) $(call cpp_flags,$(c_flags)) -S -g0 -o $@.new -MQ $@ $< $(call move-if-changed,$@.new,$@) =20 -arch/$(TARGET_ARCH)/include/asm/asm-offsets.h: asm-offsets.s +arch/$(SRCARCH)/include/asm/asm-offsets.h: asm-offsets.s @(set -e; 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d="scan'208";a="113083391" From: Anthony PERARD To: CC: Anthony PERARD , Jason Andryuk , Andrew Cooper , "George Dunlap" , Jan Beulich , "Julien Grall" , Stefano Stabellini , Wei Liu Subject: [XEN PATCH v2 4/5] build: evaluate XEN_BUILD_* and XEN_DOMAIN on first use Date: Thu, 22 Jun 2023 16:30:04 +0100 Message-ID: <20230622153005.31604-5-anthony.perard@citrix.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230622153005.31604-1-anthony.perard@citrix.com> References: <20230622153005.31604-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1687448030356100001 Content-Type: text/plain; charset="utf-8" With GNU make 4.4, the number of execution of the command present in these $(shell ) increased greatly. This is probably because as of make 4.4, exported variable are also added to the environment of $(shell ) construct. Also, `make -d` shows a lot of these: Makefile:15: not recursively expanding XEN_BUILD_DATE to export to shel= l function Makefile:16: not recursively expanding XEN_BUILD_TIME to export to shel= l function Makefile:17: not recursively expanding XEN_BUILD_HOST to export to shel= l function Makefile:14: not recursively expanding XEN_DOMAIN to export to shell fu= nction So, to avoid having these command been run more than necessery, we will use a construct to evaluate on first use. Reported-by: Jason Andryuk Signed-off-by: Anthony PERARD Tested-by: Jason Andryuk --- xen/Makefile | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/xen/Makefile b/xen/Makefile index ac2765050b..e3b1468f83 100644 --- a/xen/Makefile +++ b/xen/Makefile @@ -11,10 +11,10 @@ export XEN_FULLVERSION =3D $(XEN_VERSION).$(XEN_SUBVE= RSION)$(XEN_EXTRAVERSION) -include xen-version =20 export XEN_WHOAMI ?=3D $(USER) -export XEN_DOMAIN ?=3D $(shell ([ -x /bin/dnsdomainname ] && /bin/dnsdomai= nname) || ([ -x /bin/domainname ] && /bin/domainname || echo [unknown])) -export XEN_BUILD_DATE ?=3D $(shell LC_ALL=3DC date) -export XEN_BUILD_TIME ?=3D $(shell LC_ALL=3DC date +%T) -export XEN_BUILD_HOST ?=3D $(shell hostname) +export XEN_DOMAIN ?=3D $(eval XEN_DOMAIN :=3D $(shell ([ -x /bin/dnsdomain= name ] && /bin/dnsdomainname) || ([ -x /bin/domainname ] && /bin/domainname= || echo [unknown])))$(XEN_DOMAIN) +export XEN_BUILD_DATE ?=3D $(eval XEN_BUILD_DATE :=3D $(shell LC_ALL=3DC d= ate))$(XEN_BUILD_DATE) +export XEN_BUILD_TIME ?=3D $(eval XEN_BUILD_TIME :=3D $(shell LC_ALL=3DC d= ate +%T))$(XEN_BUILD_TIME) +export XEN_BUILD_HOST ?=3D $(eval XEN_BUILD_HOST :=3D $(shell hostname))$(= XEN_BUILD_HOST) =20 # Best effort attempt to find a python interpreter, defaulting to Python 3= if # available. 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d="scan'208";a="113083464" From: Anthony PERARD To: CC: Anthony PERARD , Jason Andryuk , Andrew Cooper , "George Dunlap" , Jan Beulich , "Julien Grall" , Stefano Stabellini , Wei Liu Subject: [XEN PATCH v2 5/5] Config.mk: evaluate XEN_COMPILE_ARCH and XEN_OS on first use Date: Thu, 22 Jun 2023 16:30:05 +0100 Message-ID: <20230622153005.31604-6-anthony.perard@citrix.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230622153005.31604-1-anthony.perard@citrix.com> References: <20230622153005.31604-1-anthony.perard@citrix.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1687448042373100001 Content-Type: text/plain; charset="utf-8" With GNU make 4.4, the number of execution of the command present in these $(shell ) increased greatly. This is probably because as of make 4.4, exported variable are also added to the environment of $(shell ) construct. So, to avoid having these command been run more than necessery, we will use a construct to evaluate on first use. Reported-by: Jason Andryuk Signed-off-by: Anthony PERARD Tested-by: Jason Andryuk --- Config.mk | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Config.mk b/Config.mk index c529b1ba19..5fbdbc4500 100644 --- a/Config.mk +++ b/Config.mk @@ -19,13 +19,13 @@ or =3D $(if $(strip $(1)),$(1),$(if $(strip $(2))= ,$(2),$(if $(strip $(3)),$( =20 -include $(XEN_ROOT)/.config =20 -XEN_COMPILE_ARCH ?=3D $(shell uname -m | sed -e s/i.86/x86_32/ \ +XEN_COMPILE_ARCH ?=3D $(eval XEN_COMPILE_ARCH :=3D $(shell uname -m | s= ed -e s/i.86/x86_32/ \ -e s/i86pc/x86_32/ -e s/amd64/x86_64/ \ -e s/armv7.*/arm32/ -e s/armv8.*/arm64/ \ - -e s/aarch64/arm64/) + -e s/aarch64/arm64/))$(XEN_COMPILE_ARCH) =20 XEN_TARGET_ARCH ?=3D $(XEN_COMPILE_ARCH) -XEN_OS ?=3D $(shell uname -s) +XEN_OS ?=3D $(eval XEN_OS :=3D $(shell uname -s))$(XEN_OS) =20 CONFIG_$(XEN_OS) :=3D y =20 --=20 Anthony PERARD