Re: [PATCH v2 2/2] kbuild: consolidate Clang compiler flags
On Tue, Nov 6, 2018 at 12:06 PM Masahiro Yamada wrote: > > Collect basic Clang options such as --target, --prefix, --gcc-toolchain, > -no-integrated-as into a single variable CLANG_FLAGS so that it can be > easily reused in other parts of Makefile. > > Signed-off-by: Masahiro Yamada > --- Applied to linux-kbuild. > Changes in v2: > - Use := flavor instead of = because $(CLANG_FLAGS) is expanded soon anyway > > Makefile | 13 ++--- > 1 file changed, 6 insertions(+), 7 deletions(-) > > diff --git a/Makefile b/Makefile > index da11700..e173a73 100644 > --- a/Makefile > +++ b/Makefile > @@ -487,18 +487,17 @@ endif > > ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) > ifneq ($(CROSS_COMPILE),) > -CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) > +CLANG_FLAGS:= --target=$(notdir $(CROSS_COMPILE:%-=%)) > GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) > -CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) > +CLANG_FLAGS+= --prefix=$(GCC_TOOLCHAIN_DIR) > GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) > endif > ifneq ($(GCC_TOOLCHAIN),) > -CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) > +CLANG_FLAGS+= --gcc-toolchain=$(GCC_TOOLCHAIN) > endif > -KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > -KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > -KBUILD_CFLAGS += -no-integrated-as > -KBUILD_AFLAGS += -no-integrated-as > +CLANG_FLAGS+= -no-integrated-as > +KBUILD_CFLAGS += $(CLANG_FLAGS) > +KBUILD_AFLAGS += $(CLANG_FLAGS) > endif > > RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern > -mindirect-branch-register > -- > 2.7.4 > -- Best Regards Masahiro Yamada
Re: [PATCH v2 2/2] kbuild: consolidate Clang compiler flags
On Mon, 12 Nov 2018 at 13:59, Masahiro Yamada wrote: > > On Mon, Nov 12, 2018 at 10:05 AM Michael Ellerman wrote: > > > > Masahiro Yamada writes: > > > On Sat, Nov 10, 2018 at 3:35 AM Greg Hackmann > > > wrote: > > >> > > >> On 11/09/2018 10:29 AM, Nick Desaulniers wrote: > > >> > On Mon, Nov 5, 2018 at 7:05 PM Masahiro Yamada > > >> > wrote: > > >> >> > > >> >> Collect basic Clang options such as --target, --prefix, > > >> >> --gcc-toolchain, > > >> >> -no-integrated-as into a single variable CLANG_FLAGS so that it can be > > >> >> easily reused in other parts of Makefile. > > >> >> > > >> >> Signed-off-by: Masahiro Yamada > > >> >> --- > > >> >> > > >> >> Changes in v2: > > >> >> - Use := flavor instead of = because $(CLANG_FLAGS) is expanded > > >> >> soon anyway > > >> >> > > >> >> Makefile | 13 ++--- > > >> >> 1 file changed, 6 insertions(+), 7 deletions(-) > > >> >> > > >> >> diff --git a/Makefile b/Makefile > > >> >> index da11700..e173a73 100644 > > >> >> --- a/Makefile > > >> >> +++ b/Makefile > > >> >> @@ -487,18 +487,17 @@ endif > > >> >> > > >> >> ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) > > >> >> ifneq ($(CROSS_COMPILE),) > > >> >> -CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) > > >> >> +CLANG_FLAGS:= --target=$(notdir $(CROSS_COMPILE:%-=%)) > > >> >> GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) > > >> >> -CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) > > >> >> +CLANG_FLAGS+= --prefix=$(GCC_TOOLCHAIN_DIR) > > >> >> GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) > > >> >> endif > > >> >> ifneq ($(GCC_TOOLCHAIN),) > > >> >> -CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) > > >> >> +CLANG_FLAGS+= --gcc-toolchain=$(GCC_TOOLCHAIN) > > >> >> endif > > >> >> -KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > > >> >> -KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > > >> >> -KBUILD_CFLAGS += -no-integrated-as > > >> >> -KBUILD_AFLAGS += -no-integrated-as > > >> >> +CLANG_FLAGS+= -no-integrated-as > > >> >> +KBUILD_CFLAGS += $(CLANG_FLAGS) > > >> >> +KBUILD_AFLAGS += $(CLANG_FLAGS) > > >> >> endif > > >> >> > > >> >> RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern > > >> >> -mindirect-branch-register > > >> >> -- > > >> >> 2.7.4 > > >> >> > > >> > > > >> > Thanks for this patch, Masahiro, it's a good simplification. > > >> > Reviewed-by: Nick Desaulniers > > >> > Tested-by: Nick Desaulniers > > >> > > > >> > Would you mind waiting for a tested-by from Stefan, and maybe an ack > > >> > from Greg (added to cc)? > > >> > > > >> > > >> Acked-by: Greg Hackmann > > > > > > > > > Thanks for your review! > > > > > > > > > So, how to organize this series, and Joel's one together? > > > > > > I'd like Joel to use this series as a base for his work. > > > (https://lore.kernel.org/patchwork/patch/1006696/) > > > > > > It will be much cleaner. > > > > > > > > > Shall I merge all the patches to kbuild tree, or > > > maybe will they go through powerpc tree? > > > > Joel's changes are fairly small so you may as well merge them along with > > the rest of the series, if that's OK with you and Joel. > > > OK, I will. > > > Joel, > If you send v2, I will merge it to kbuild tree. Thanks, I've done that now. Cheers, Joel
Re: [PATCH v2 2/2] kbuild: consolidate Clang compiler flags
On Mon, Nov 12, 2018 at 10:05 AM Michael Ellerman wrote: > > Masahiro Yamada writes: > > On Sat, Nov 10, 2018 at 3:35 AM Greg Hackmann wrote: > >> > >> On 11/09/2018 10:29 AM, Nick Desaulniers wrote: > >> > On Mon, Nov 5, 2018 at 7:05 PM Masahiro Yamada > >> > wrote: > >> >> > >> >> Collect basic Clang options such as --target, --prefix, --gcc-toolchain, > >> >> -no-integrated-as into a single variable CLANG_FLAGS so that it can be > >> >> easily reused in other parts of Makefile. > >> >> > >> >> Signed-off-by: Masahiro Yamada > >> >> --- > >> >> > >> >> Changes in v2: > >> >> - Use := flavor instead of = because $(CLANG_FLAGS) is expanded soon > >> >> anyway > >> >> > >> >> Makefile | 13 ++--- > >> >> 1 file changed, 6 insertions(+), 7 deletions(-) > >> >> > >> >> diff --git a/Makefile b/Makefile > >> >> index da11700..e173a73 100644 > >> >> --- a/Makefile > >> >> +++ b/Makefile > >> >> @@ -487,18 +487,17 @@ endif > >> >> > >> >> ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) > >> >> ifneq ($(CROSS_COMPILE),) > >> >> -CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) > >> >> +CLANG_FLAGS:= --target=$(notdir $(CROSS_COMPILE:%-=%)) > >> >> GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) > >> >> -CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) > >> >> +CLANG_FLAGS+= --prefix=$(GCC_TOOLCHAIN_DIR) > >> >> GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) > >> >> endif > >> >> ifneq ($(GCC_TOOLCHAIN),) > >> >> -CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) > >> >> +CLANG_FLAGS+= --gcc-toolchain=$(GCC_TOOLCHAIN) > >> >> endif > >> >> -KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > >> >> -KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > >> >> -KBUILD_CFLAGS += -no-integrated-as > >> >> -KBUILD_AFLAGS += -no-integrated-as > >> >> +CLANG_FLAGS+= -no-integrated-as > >> >> +KBUILD_CFLAGS += $(CLANG_FLAGS) > >> >> +KBUILD_AFLAGS += $(CLANG_FLAGS) > >> >> endif > >> >> > >> >> RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern > >> >> -mindirect-branch-register > >> >> -- > >> >> 2.7.4 > >> >> > >> > > >> > Thanks for this patch, Masahiro, it's a good simplification. > >> > Reviewed-by: Nick Desaulniers > >> > Tested-by: Nick Desaulniers > >> > > >> > Would you mind waiting for a tested-by from Stefan, and maybe an ack > >> > from Greg (added to cc)? > >> > > >> > >> Acked-by: Greg Hackmann > > > > > > Thanks for your review! > > > > > > So, how to organize this series, and Joel's one together? > > > > I'd like Joel to use this series as a base for his work. > > (https://lore.kernel.org/patchwork/patch/1006696/) > > > > It will be much cleaner. > > > > > > Shall I merge all the patches to kbuild tree, or > > maybe will they go through powerpc tree? > > Joel's changes are fairly small so you may as well merge them along with > the rest of the series, if that's OK with you and Joel. OK, I will. Joel, If you send v2, I will merge it to kbuild tree. Thanks. -- Best Regards Masahiro Yamada
Re: [PATCH v2 2/2] kbuild: consolidate Clang compiler flags
Masahiro Yamada writes: > On Sat, Nov 10, 2018 at 3:35 AM Greg Hackmann wrote: >> >> On 11/09/2018 10:29 AM, Nick Desaulniers wrote: >> > On Mon, Nov 5, 2018 at 7:05 PM Masahiro Yamada >> > wrote: >> >> >> >> Collect basic Clang options such as --target, --prefix, --gcc-toolchain, >> >> -no-integrated-as into a single variable CLANG_FLAGS so that it can be >> >> easily reused in other parts of Makefile. >> >> >> >> Signed-off-by: Masahiro Yamada >> >> --- >> >> >> >> Changes in v2: >> >> - Use := flavor instead of = because $(CLANG_FLAGS) is expanded soon >> >> anyway >> >> >> >> Makefile | 13 ++--- >> >> 1 file changed, 6 insertions(+), 7 deletions(-) >> >> >> >> diff --git a/Makefile b/Makefile >> >> index da11700..e173a73 100644 >> >> --- a/Makefile >> >> +++ b/Makefile >> >> @@ -487,18 +487,17 @@ endif >> >> >> >> ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) >> >> ifneq ($(CROSS_COMPILE),) >> >> -CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) >> >> +CLANG_FLAGS:= --target=$(notdir $(CROSS_COMPILE:%-=%)) >> >> GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) >> >> -CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) >> >> +CLANG_FLAGS+= --prefix=$(GCC_TOOLCHAIN_DIR) >> >> GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) >> >> endif >> >> ifneq ($(GCC_TOOLCHAIN),) >> >> -CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) >> >> +CLANG_FLAGS+= --gcc-toolchain=$(GCC_TOOLCHAIN) >> >> endif >> >> -KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) >> >> -KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) >> >> -KBUILD_CFLAGS += -no-integrated-as >> >> -KBUILD_AFLAGS += -no-integrated-as >> >> +CLANG_FLAGS+= -no-integrated-as >> >> +KBUILD_CFLAGS += $(CLANG_FLAGS) >> >> +KBUILD_AFLAGS += $(CLANG_FLAGS) >> >> endif >> >> >> >> RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern >> >> -mindirect-branch-register >> >> -- >> >> 2.7.4 >> >> >> > >> > Thanks for this patch, Masahiro, it's a good simplification. >> > Reviewed-by: Nick Desaulniers >> > Tested-by: Nick Desaulniers >> > >> > Would you mind waiting for a tested-by from Stefan, and maybe an ack >> > from Greg (added to cc)? >> > >> >> Acked-by: Greg Hackmann > > > Thanks for your review! > > > So, how to organize this series, and Joel's one together? > > I'd like Joel to use this series as a base for his work. > (https://lore.kernel.org/patchwork/patch/1006696/) > > It will be much cleaner. > > > Shall I merge all the patches to kbuild tree, or > maybe will they go through powerpc tree? Joel's changes are fairly small so you may as well merge them along with the rest of the series, if that's OK with you and Joel. cheers
Re: [PATCH v2 2/2] kbuild: consolidate Clang compiler flags
On Sat, Nov 10, 2018 at 3:35 AM Greg Hackmann wrote: > > On 11/09/2018 10:29 AM, Nick Desaulniers wrote: > > On Mon, Nov 5, 2018 at 7:05 PM Masahiro Yamada > > wrote: > >> > >> Collect basic Clang options such as --target, --prefix, --gcc-toolchain, > >> -no-integrated-as into a single variable CLANG_FLAGS so that it can be > >> easily reused in other parts of Makefile. > >> > >> Signed-off-by: Masahiro Yamada > >> --- > >> > >> Changes in v2: > >> - Use := flavor instead of = because $(CLANG_FLAGS) is expanded soon > >> anyway > >> > >> Makefile | 13 ++--- > >> 1 file changed, 6 insertions(+), 7 deletions(-) > >> > >> diff --git a/Makefile b/Makefile > >> index da11700..e173a73 100644 > >> --- a/Makefile > >> +++ b/Makefile > >> @@ -487,18 +487,17 @@ endif > >> > >> ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) > >> ifneq ($(CROSS_COMPILE),) > >> -CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) > >> +CLANG_FLAGS:= --target=$(notdir $(CROSS_COMPILE:%-=%)) > >> GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) > >> -CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) > >> +CLANG_FLAGS+= --prefix=$(GCC_TOOLCHAIN_DIR) > >> GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) > >> endif > >> ifneq ($(GCC_TOOLCHAIN),) > >> -CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) > >> +CLANG_FLAGS+= --gcc-toolchain=$(GCC_TOOLCHAIN) > >> endif > >> -KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > >> -KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > >> -KBUILD_CFLAGS += -no-integrated-as > >> -KBUILD_AFLAGS += -no-integrated-as > >> +CLANG_FLAGS+= -no-integrated-as > >> +KBUILD_CFLAGS += $(CLANG_FLAGS) > >> +KBUILD_AFLAGS += $(CLANG_FLAGS) > >> endif > >> > >> RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern > >> -mindirect-branch-register > >> -- > >> 2.7.4 > >> > > > > Thanks for this patch, Masahiro, it's a good simplification. > > Reviewed-by: Nick Desaulniers > > Tested-by: Nick Desaulniers > > > > Would you mind waiting for a tested-by from Stefan, and maybe an ack > > from Greg (added to cc)? > > > > Acked-by: Greg Hackmann Thanks for your review! So, how to organize this series, and Joel's one together? I'd like Joel to use this series as a base for his work. (https://lore.kernel.org/patchwork/patch/1006696/) It will be much cleaner. Shall I merge all the patches to kbuild tree, or maybe will they go through powerpc tree? -- Best Regards Masahiro Yamada
Re: [PATCH v2 2/2] kbuild: consolidate Clang compiler flags
On Mon, Nov 5, 2018 at 7:05 PM Masahiro Yamada wrote: > > Collect basic Clang options such as --target, --prefix, --gcc-toolchain, > -no-integrated-as into a single variable CLANG_FLAGS so that it can be > easily reused in other parts of Makefile. > > Signed-off-by: Masahiro Yamada > --- > > Changes in v2: > - Use := flavor instead of = because $(CLANG_FLAGS) is expanded soon anyway > > Makefile | 13 ++--- > 1 file changed, 6 insertions(+), 7 deletions(-) > > diff --git a/Makefile b/Makefile > index da11700..e173a73 100644 > --- a/Makefile > +++ b/Makefile > @@ -487,18 +487,17 @@ endif > > ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) > ifneq ($(CROSS_COMPILE),) > -CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) > +CLANG_FLAGS:= --target=$(notdir $(CROSS_COMPILE:%-=%)) > GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) > -CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) > +CLANG_FLAGS+= --prefix=$(GCC_TOOLCHAIN_DIR) > GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) > endif > ifneq ($(GCC_TOOLCHAIN),) > -CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) > +CLANG_FLAGS+= --gcc-toolchain=$(GCC_TOOLCHAIN) > endif > -KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > -KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) > -KBUILD_CFLAGS += -no-integrated-as > -KBUILD_AFLAGS += -no-integrated-as > +CLANG_FLAGS+= -no-integrated-as > +KBUILD_CFLAGS += $(CLANG_FLAGS) > +KBUILD_AFLAGS += $(CLANG_FLAGS) > endif > > RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern > -mindirect-branch-register > -- > 2.7.4 > Thanks for this patch, Masahiro, it's a good simplification. Reviewed-by: Nick Desaulniers Tested-by: Nick Desaulniers Would you mind waiting for a tested-by from Stefan, and maybe an ack from Greg (added to cc)? -- Thanks, ~Nick Desaulniers
[PATCH v2 2/2] kbuild: consolidate Clang compiler flags
Collect basic Clang options such as --target, --prefix, --gcc-toolchain, -no-integrated-as into a single variable CLANG_FLAGS so that it can be easily reused in other parts of Makefile. Signed-off-by: Masahiro Yamada --- Changes in v2: - Use := flavor instead of = because $(CLANG_FLAGS) is expanded soon anyway Makefile | 13 ++--- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/Makefile b/Makefile index da11700..e173a73 100644 --- a/Makefile +++ b/Makefile @@ -487,18 +487,17 @@ endif ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),) ifneq ($(CROSS_COMPILE),) -CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) +CLANG_FLAGS:= --target=$(notdir $(CROSS_COMPILE:%-=%)) GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) -CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) +CLANG_FLAGS+= --prefix=$(GCC_TOOLCHAIN_DIR) GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) endif ifneq ($(GCC_TOOLCHAIN),) -CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) +CLANG_FLAGS+= --gcc-toolchain=$(GCC_TOOLCHAIN) endif -KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) -KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) -KBUILD_CFLAGS += -no-integrated-as -KBUILD_AFLAGS += -no-integrated-as +CLANG_FLAGS+= -no-integrated-as +KBUILD_CFLAGS += $(CLANG_FLAGS) +KBUILD_AFLAGS += $(CLANG_FLAGS) endif RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern -mindirect-branch-register -- 2.7.4
