| Message ID | 20210122003235.77246-1-sedat.dilek@gmail.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | BPF |
| Headers | show |
| Series | [RFC,v2] tools: Factor Clang, LLC and LLVM utils definitions | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Not a local patch |
On Thu, Jan 21, 2021 at 4:32 PM Sedat Dilek <sedat.dilek@gmail.com> wrote: > > When dealing with BPF/BTF/pahole and DWARF v5 I wanted to build bpftool. > > While looking into the source code I found duplicate assignments > in misc tools for the LLVM eco system, e.g. clang and llvm-objcopy. > > Move the Clang, LLC and/or LLVM utils definitions to > tools/scripts/Makefile.include file and add missing > includes where needed. > Honestly, I was inspired by commit c8a950d0d3b9 > ("tools: Factor HOSTCC, HOSTLD, HOSTAR definitions"). > > I tested with bpftool and perf on Debian/testing AMD64 and > LLVM/Clang v11.1.0-rc1. > > Build instructions: > > [ make and make-options ] > MAKE="make V=1" > MAKE_OPTS="HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1" > MAKE_OPTS="$MAKE_OPTS PAHOLE=/opt/pahole/bin/pahole" > > [ clean-up ] > $MAKE $MAKE_OPTS -C tools/ clean > > [ bpftool ] > $MAKE $MAKE_OPTS -C tools/bpf/bpftool/ > > [ perf ] > PYTHON=python3 $MAKE $MAKE_OPTS -C tools/perf/ > > I was careful with respecting the user's wish to override custom compiler, > linker, GNU/binutils and/or LLVM utils settings. > > Some personal notes: > 1. I have NOT tested with cross-toolchain for other archs (cross compiler/linker etc.). > 2. This patch is on top of Linux v5.11-rc4. > > I hope to get some feedback from especially Linux-bpf folks. > > Acked-by: Jiri Olsa <jolsa@redhat.com> # tools/build and tools/perf > Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com> > --- Hi Sedat, If no one objects, we'll take this through bpf-next tree. Can you please re-send this as a non-RFC patch against the bpf-next tree? Feel free to add my ack. Thanks. > Changelog RFC v1->v2: > - Add Jiri's ACK > - Adapt to fit Linux v5.11-rc4 > [...]
On Thu, Jan 28, 2021 at 2:27 AM Andrii Nakryiko <andrii.nakryiko@gmail.com> wrote: > > On Thu, Jan 21, 2021 at 4:32 PM Sedat Dilek <sedat.dilek@gmail.com> wrote: > > > > When dealing with BPF/BTF/pahole and DWARF v5 I wanted to build bpftool. > > > > While looking into the source code I found duplicate assignments > > in misc tools for the LLVM eco system, e.g. clang and llvm-objcopy. > > > > Move the Clang, LLC and/or LLVM utils definitions to > > tools/scripts/Makefile.include file and add missing > > includes where needed. > > Honestly, I was inspired by commit c8a950d0d3b9 > > ("tools: Factor HOSTCC, HOSTLD, HOSTAR definitions"). > > > > I tested with bpftool and perf on Debian/testing AMD64 and > > LLVM/Clang v11.1.0-rc1. > > > > Build instructions: > > > > [ make and make-options ] > > MAKE="make V=1" > > MAKE_OPTS="HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1" > > MAKE_OPTS="$MAKE_OPTS PAHOLE=/opt/pahole/bin/pahole" > > > > [ clean-up ] > > $MAKE $MAKE_OPTS -C tools/ clean > > > > [ bpftool ] > > $MAKE $MAKE_OPTS -C tools/bpf/bpftool/ > > > > [ perf ] > > PYTHON=python3 $MAKE $MAKE_OPTS -C tools/perf/ > > > > I was careful with respecting the user's wish to override custom compiler, > > linker, GNU/binutils and/or LLVM utils settings. > > > > Some personal notes: > > 1. I have NOT tested with cross-toolchain for other archs (cross compiler/linker etc.). > > 2. This patch is on top of Linux v5.11-rc4. > > > > I hope to get some feedback from especially Linux-bpf folks. > > > > Acked-by: Jiri Olsa <jolsa@redhat.com> # tools/build and tools/perf > > Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com> > > --- > > Hi Sedat, > > If no one objects, we'll take this through bpf-next tree. Can you > please re-send this as a non-RFC patch against the bpf-next tree? Feel > free to add my ack. Thanks. > I am OK with that and will add your ACK. Is [1] bpf-next Git? - Sedat - [1] https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/ > > Changelog RFC v1->v2: > > - Add Jiri's ACK > > - Adapt to fit Linux v5.11-rc4 > > > > [...]
On Wed, Jan 27, 2021 at 5:30 PM Sedat Dilek <sedat.dilek@gmail.com> wrote: > > On Thu, Jan 28, 2021 at 2:27 AM Andrii Nakryiko > <andrii.nakryiko@gmail.com> wrote: > > > > On Thu, Jan 21, 2021 at 4:32 PM Sedat Dilek <sedat.dilek@gmail.com> wrote: > > > > > > When dealing with BPF/BTF/pahole and DWARF v5 I wanted to build bpftool. > > > > > > While looking into the source code I found duplicate assignments > > > in misc tools for the LLVM eco system, e.g. clang and llvm-objcopy. > > > > > > Move the Clang, LLC and/or LLVM utils definitions to > > > tools/scripts/Makefile.include file and add missing > > > includes where needed. > > > Honestly, I was inspired by commit c8a950d0d3b9 > > > ("tools: Factor HOSTCC, HOSTLD, HOSTAR definitions"). > > > > > > I tested with bpftool and perf on Debian/testing AMD64 and > > > LLVM/Clang v11.1.0-rc1. > > > > > > Build instructions: > > > > > > [ make and make-options ] > > > MAKE="make V=1" > > > MAKE_OPTS="HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1" > > > MAKE_OPTS="$MAKE_OPTS PAHOLE=/opt/pahole/bin/pahole" > > > > > > [ clean-up ] > > > $MAKE $MAKE_OPTS -C tools/ clean > > > > > > [ bpftool ] > > > $MAKE $MAKE_OPTS -C tools/bpf/bpftool/ > > > > > > [ perf ] > > > PYTHON=python3 $MAKE $MAKE_OPTS -C tools/perf/ > > > > > > I was careful with respecting the user's wish to override custom compiler, > > > linker, GNU/binutils and/or LLVM utils settings. > > > > > > Some personal notes: > > > 1. I have NOT tested with cross-toolchain for other archs (cross compiler/linker etc.). > > > 2. This patch is on top of Linux v5.11-rc4. > > > > > > I hope to get some feedback from especially Linux-bpf folks. > > > > > > Acked-by: Jiri Olsa <jolsa@redhat.com> # tools/build and tools/perf > > > Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com> > > > --- > > > > Hi Sedat, > > > > If no one objects, we'll take this through bpf-next tree. Can you > > please re-send this as a non-RFC patch against the bpf-next tree? Feel > > free to add my ack. Thanks. > > > > I am OK with that and will add your ACK. > Is [1] bpf-next Git? Yes, please use [PATCH bpf-next] subject prefix and cc bpf@vger.kernel.org as well. > > - Sedat - > > [1] https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/ > > > > Changelog RFC v1->v2: > > > - Add Jiri's ACK > > > - Adapt to fit Linux v5.11-rc4 > > > > > > > [...]
On Thu, Jan 28, 2021 at 2:41 AM Andrii Nakryiko <andrii.nakryiko@gmail.com> wrote: > > On Wed, Jan 27, 2021 at 5:30 PM Sedat Dilek <sedat.dilek@gmail.com> wrote: > > > > On Thu, Jan 28, 2021 at 2:27 AM Andrii Nakryiko > > <andrii.nakryiko@gmail.com> wrote: > > > > > > On Thu, Jan 21, 2021 at 4:32 PM Sedat Dilek <sedat.dilek@gmail.com> wrote: > > > > > > > > When dealing with BPF/BTF/pahole and DWARF v5 I wanted to build bpftool. > > > > > > > > While looking into the source code I found duplicate assignments > > > > in misc tools for the LLVM eco system, e.g. clang and llvm-objcopy. > > > > > > > > Move the Clang, LLC and/or LLVM utils definitions to > > > > tools/scripts/Makefile.include file and add missing > > > > includes where needed. > > > > Honestly, I was inspired by commit c8a950d0d3b9 > > > > ("tools: Factor HOSTCC, HOSTLD, HOSTAR definitions"). > > > > > > > > I tested with bpftool and perf on Debian/testing AMD64 and > > > > LLVM/Clang v11.1.0-rc1. > > > > > > > > Build instructions: > > > > > > > > [ make and make-options ] > > > > MAKE="make V=1" > > > > MAKE_OPTS="HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1" > > > > MAKE_OPTS="$MAKE_OPTS PAHOLE=/opt/pahole/bin/pahole" > > > > > > > > [ clean-up ] > > > > $MAKE $MAKE_OPTS -C tools/ clean > > > > > > > > [ bpftool ] > > > > $MAKE $MAKE_OPTS -C tools/bpf/bpftool/ > > > > > > > > [ perf ] > > > > PYTHON=python3 $MAKE $MAKE_OPTS -C tools/perf/ > > > > > > > > I was careful with respecting the user's wish to override custom compiler, > > > > linker, GNU/binutils and/or LLVM utils settings. > > > > > > > > Some personal notes: > > > > 1. I have NOT tested with cross-toolchain for other archs (cross compiler/linker etc.). > > > > 2. This patch is on top of Linux v5.11-rc4. > > > > > > > > I hope to get some feedback from especially Linux-bpf folks. > > > > > > > > Acked-by: Jiri Olsa <jolsa@redhat.com> # tools/build and tools/perf > > > > Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com> > > > > --- > > > > > > Hi Sedat, > > > > > > If no one objects, we'll take this through bpf-next tree. Can you > > > please re-send this as a non-RFC patch against the bpf-next tree? Feel > > > free to add my ack. Thanks. > > > > > > > I am OK with that and will add your ACK. > > Is [1] bpf-next Git? > > Yes, please use [PATCH bpf-next] subject prefix and cc > bpf@vger.kernel.org as well. > Please see link: https://lore.kernel.org/r/20210128015117.20515-1-sedat.dilek@gmail.com - Sedat - > > > > - Sedat - > > > > [1] https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/ > > > > > > Changelog RFC v1->v2: > > > > - Add Jiri's ACK > > > > - Adapt to fit Linux v5.11-rc4 > > > > > > > > > > [...]
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index f897cb5fb12d..71c14efa6e91 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -75,8 +75,6 @@ endif INSTALL ?= install RM ?= rm -f -CLANG ?= clang -LLVM_STRIP ?= llvm-strip FEATURE_USER = .bpftool FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \ diff --git a/tools/bpf/runqslower/Makefile b/tools/bpf/runqslower/Makefile index 4d5ca54fcd4c..9d9fb6209be1 100644 --- a/tools/bpf/runqslower/Makefile +++ b/tools/bpf/runqslower/Makefile @@ -3,9 +3,6 @@ include ../../scripts/Makefile.include OUTPUT ?= $(abspath .output)/ -CLANG ?= clang -LLC ?= llc -LLVM_STRIP ?= llvm-strip BPFTOOL_OUTPUT := $(OUTPUT)bpftool/ DEFAULT_BPFTOOL := $(BPFTOOL_OUTPUT)bpftool BPFTOOL ?= $(DEFAULT_BPFTOOL) diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index 89ba522e377d..3e55edb3ea54 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -1,4 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 +include ../../scripts/Makefile.include + FILES= \ test-all.bin \ test-backtrace.bin \ @@ -76,8 +78,6 @@ FILES= \ FILES := $(addprefix $(OUTPUT),$(FILES)) PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config -LLVM_CONFIG ?= llvm-config -CLANG ?= clang all: $(FILES) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 62f3deb1d3a8..f4df7534026d 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -176,7 +176,6 @@ endef LD += $(EXTRA_LDFLAGS) PKG_CONFIG = $(CROSS_COMPILE)pkg-config -LLVM_CONFIG ?= llvm-config RM = rm -f LN = ln -f diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include index 1358e89cdf7d..4255e71f72b7 100644 --- a/tools/scripts/Makefile.include +++ b/tools/scripts/Makefile.include @@ -69,6 +69,13 @@ HOSTCC ?= gcc HOSTLD ?= ld endif +# Some tools require Clang, LLC and/or LLVM utils +CLANG ?= clang +LLC ?= llc +LLVM_CONFIG ?= llvm-config +LLVM_OBJCOPY ?= llvm-objcopy +LLVM_STRIP ?= llvm-strip + ifeq ($(CC_NO_CLANG), 1) EXTRA_WARNINGS += -Wstrict-aliasing=3 endif diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index c51df6b91bef..952e2bc5f3bc 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 include ../../../../scripts/Kbuild.include include ../../../scripts/Makefile.arch +include ../../../scripts/Makefile.include CXX ?= $(CROSS_COMPILE)g++ @@ -18,8 +19,6 @@ ifneq ($(wildcard $(GENHDR)),) GENFLAGS := -DHAVE_GENHDR endif -CLANG ?= clang -LLVM_OBJCOPY ?= llvm-objcopy BPF_GCC ?= $(shell command -v bpf-gcc;) SAN_CFLAGS ?= CFLAGS += -g -rdynamic -Wall -O2 $(GENFLAGS) $(SAN_CFLAGS) \ diff --git a/tools/testing/selftests/tc-testing/Makefile b/tools/testing/selftests/tc-testing/Makefile index 91fee5c43274..4d639279f41e 100644 --- a/tools/testing/selftests/tc-testing/Makefile +++ b/tools/testing/selftests/tc-testing/Makefile @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 +include ../../../scripts/Makefile.include top_srcdir = $(abspath ../../../..) APIDIR := $(top_scrdir)/include/uapi @@ -7,8 +8,6 @@ TEST_GEN_FILES = action.o KSFT_KHDR_INSTALL := 1 include ../lib.mk -CLANG ?= clang -LLC ?= llc PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1) ifeq ($(PROBE),)
When dealing with BPF/BTF/pahole and DWARF v5 I wanted to build bpftool. While looking into the source code I found duplicate assignments in misc tools for the LLVM eco system, e.g. clang and llvm-objcopy. Move the Clang, LLC and/or LLVM utils definitions to tools/scripts/Makefile.include file and add missing includes where needed. Honestly, I was inspired by commit c8a950d0d3b9 ("tools: Factor HOSTCC, HOSTLD, HOSTAR definitions"). I tested with bpftool and perf on Debian/testing AMD64 and LLVM/Clang v11.1.0-rc1. Build instructions: [ make and make-options ] MAKE="make V=1" MAKE_OPTS="HOSTCC=clang HOSTCXX=clang++ HOSTLD=ld.lld CC=clang LD=ld.lld LLVM=1 LLVM_IAS=1" MAKE_OPTS="$MAKE_OPTS PAHOLE=/opt/pahole/bin/pahole" [ clean-up ] $MAKE $MAKE_OPTS -C tools/ clean [ bpftool ] $MAKE $MAKE_OPTS -C tools/bpf/bpftool/ [ perf ] PYTHON=python3 $MAKE $MAKE_OPTS -C tools/perf/ I was careful with respecting the user's wish to override custom compiler, linker, GNU/binutils and/or LLVM utils settings. Some personal notes: 1. I have NOT tested with cross-toolchain for other archs (cross compiler/linker etc.). 2. This patch is on top of Linux v5.11-rc4. I hope to get some feedback from especially Linux-bpf folks. Acked-by: Jiri Olsa <jolsa@redhat.com> # tools/build and tools/perf Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com> --- Changelog RFC v1->v2: - Add Jiri's ACK - Adapt to fit Linux v5.11-rc4 tools/bpf/bpftool/Makefile | 2 -- tools/bpf/runqslower/Makefile | 3 --- tools/build/feature/Makefile | 4 ++-- tools/perf/Makefile.perf | 1 - tools/scripts/Makefile.include | 7 +++++++ tools/testing/selftests/bpf/Makefile | 3 +-- tools/testing/selftests/tc-testing/Makefile | 3 +-- 7 files changed, 11 insertions(+), 12 deletions(-)