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Message-ID: <Ykyfzn6Z8Wkf1Ccl@kernel.org>
Date: Tue, 5 Apr 2022 17:00:14 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Sedat Dilek <sedat.dilek@...il.com>
Cc: Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>,
Nathan Chancellor <nathan@...nel.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Fangrui Song <maskray@...gle.com>,
Florian Fainelli <f.fainelli@...il.com>,
Ian Rogers <irogers@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
John Keeping <john@...anate.com>, Leo Yan <leo.yan@...aro.org>,
Michael Petlan <mpetlan@...hat.com>,
Namhyung Kim <namhyung@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Build perf with clang, failure with libperf
Em Tue, Apr 05, 2022 at 05:46:00PM +0200, Sedat Dilek escreveu:
> On Tue, Apr 5, 2022 at 4:47 PM Arnaldo Carvalho de Melo <arnaldo.melo@...il.com> wrote:
> > Em Mon, Apr 04, 2022 at 02:53:24PM -0700, Nathan Chancellor escreveu:
> > +++ b/tools/build/feature/Makefile
> > @@ -220,6 +220,13 @@ PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
> > PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
> > FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
> >
> > +ifeq ($(CC_NO_CLANG), 0)
> > + PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
> > + PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
>
> ^^ This affects CONFIG_LTO_CLANG=y only, so check for it?
Well, at this point when trying to build with CC=clang one won't get
libperf detected, so the priority is to make it work, i.e. filter out
the options that prevent this type of build to complete.
And looking at kernel config options is something we try not to do
> > + PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
> > + FLAGS_PERL_EMBED += -Wno-compound-token-split-by-macro
>
> ^^ Maybe add a comment here or in the commit message that this occurs
> with perl v5.34.
> Together with the links Nathan pointing to the perl BTS?
Ok, I'll add these notes to the commit log message.
> > +endif
> > +
> > $(OUTPUT)test-libperl.bin:
> > $(BUILD) $(FLAGS_PERL_EMBED)
> > diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
> > index 96ad944ca6a885cd..5b5ba475a5c00c0f 100644
> > --- a/tools/perf/Makefile.config
> > +++ b/tools/perf/Makefile.config
> > @@ -790,6 +790,9 @@ else
> > LDFLAGS += $(PERL_EMBED_LDFLAGS)
> > EXTLIBS += $(PERL_EMBED_LIBADD)
> > CFLAGS += -DHAVE_LIBPERL_SUPPORT
> > + ifeq ($(CC_NO_CLANG), 0)
> > + CFLAGS += -Wno-compound-token-split-by-macro
> > + endif
> > $(call detected,CONFIG_LIBPERL)
> > endif
> > endif
> ( I am here on Linux v5.17 + kbuild-gnu11-v5.18 and kbuild-v5.18 fixes. )
> ( My goal was to build perf with LLVM/Clang v13/v14 and -std=gnu11. )
> ( Debian/unstable switched to perl v5.34 in February. )
> ( That is the background I hit these issues. )
> Link: https://marc.info/?t=164646683300002&r=1&w=2
> Link: https://marc.info/?t=164689324800001&r=1&w=2
> Unsure what your base is.
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tmp.perf/urgent
> When I recall correctly we have CLANG_FLAGS exported in the top-level Makefile?
> Oh no, now it is here.
CLANG_FLAGS?
⬢[acme@...lbox perf]$ grep -r CLANG_FLAGS tools/
tools/testing/selftests/rseq/Makefile:CLANG_FLAGS += -no-integrated-as
tools/testing/selftests/rseq/Makefile: $(CLANG_FLAGS)
tools/testing/selftests/tc-testing/Makefile:CLANG_FLAGS = -I. -I$(APIDIR) \
tools/testing/selftests/tc-testing/Makefile: $(CLANG) $(CLANG_FLAGS) \
tools/testing/selftests/sched/Makefile:CLANG_FLAGS += -no-integrated-as
tools/testing/selftests/sched/Makefile: $(CLANG_FLAGS)
⬢[acme@...lbox perf]$
That is not used in perf or tools/build/
> $ git grep CLANG_FLAGS scripts/Makefile.clang
> scripts/Makefile.clang:CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
> scripts/Makefile.clang:CLANG_FLAGS += --target=$(notdir
> $(CROSS_COMPILE:%-=%))
> scripts/Makefile.clang:CLANG_FLAGS += -fno-integrated-as
> scripts/Makefile.clang:CLANG_FLAGS +=
> --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
> scripts/Makefile.clang:CLANG_FLAGS += -fintegrated-as
> scripts/Makefile.clang:CLANG_FLAGS += -Werror=unknown-warning-option
> scripts/Makefile.clang:CLANG_FLAGS += -Werror=ignored-optimization-argument
> scripts/Makefile.clang:KBUILD_CFLAGS += $(CLANG_FLAGS)
> scripts/Makefile.clang:KBUILD_AFLAGS += $(CLANG_FLAGS)
> scripts/Makefile.clang:export CLANG_FLAGS
>
> So, are all these CLANG_FLAGS "inherited" to tools/ build ECO systems?
Not really
> I think no - it has its own rules :-(.
yes
> So, we should include scripts/Makefile.clang or enhance
> tools/scripts/Makefile.include where LLVM/Clang stuff is defined (and
> can be overridden).
> Jiri pointed out he needed two options (when I recall correctly):
>
> [1] -Wno-unused-command-line-argument
>
> Example:
> tools/testing/selftests/bpf/Makefile-# Silence some warnings when
> compiled with clang
> tools/testing/selftests/bpf/Makefile-ifneq ($(LLVM),)
> tools/testing/selftests/bpf/Makefile:CFLAGS += -Wno-unused-command-line-argument
> tools/testing/selftests/bpf/Makefile-endif
>
> ^^ Here you see it is checked for LLVM.
> Again, put that stuff in one single place - tools/scripts/Makefile.include
>
> [2] -Wno-ignored-optimization-argument
>
> Both [1] and [2] were not needed in my case.
>
> [1] is always good to have - not only for perf.
>
> AFAICS, you wanted to consolidate PERL_EMBED_XXX and FLAGS_PERL_EMBED
> at a single place.
> 1. tools/build/feature/Makefile
> 2. tools/perf/Makefile.config
Yeah, at some point I'll do it, probably in the 5.19 window.
> Can not say where we all need perl check/requirement - maybe put that
> stuff to the place where we define/check for toolchain/compiler (see
> above)?
>
> Again, all these issues happen because of -Werror is strictly set.
>
> I put my patches around that area (see 2nd patch) - without checking
> if the LLVM/Clang toolchain is used or not.
> Both patches are attached.
I saw those patches, even added a:
Based-on-a-patch-by: Sedat Dilek <sedat.dilek@...il.com>
> $ git show -1 for-5.17/tools-feature_detect_libperl-clang-dileks-v3
> commit 72ba634c9b39547197900d8b64ff36134af3ed08
> (for-5.17/tools-feature_detect_libperl-clang-dileks-v3)
> Author: Sedat Dilek <sedat.dilek@...il.com>
> Date: Sun Mar 13 12:37:06 2022 +0100
>
> tools: feature-detect: libperl: Sync PERL_EMBED_CCOPTS with perf
>
> diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
> index 1480910c792e..fa6be127f483 100644
> --- a/tools/build/feature/Makefile
> +++ b/tools/build/feature/Makefile
> @@ -217,7 +217,8 @@ strip-libs = $(filter-out -l%,$(1))
> PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
> PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
> PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
> -PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
> +PERL_EMBED_CCOPTS = $(perl -MExtUtils::Embed -e ccopts 2>/dev/null)
> +PERL_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
> FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
>
> $(OUTPUT)test-libperl.bin:
>
> $ git show -1 for-5.17/perf-libperl_support-clang-dileks
> commit 316a1917ec05772ab0f99dad534fabdd74547865
> (for-5.17/perf-libperl_support-clang-dileks)
> Author: Sedat Dilek <sedat.dilek@...il.com>
> Date: Sun Mar 6 11:29:50 2022 +0100
>
> perf: Fix libperl support with clang and perl v5.34
>
> diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
> index 1480910c792e..ef9b37c5c652 100644
> --- a/tools/build/feature/Makefile
> +++ b/tools/build/feature/Makefile
> @@ -81,7 +81,7 @@ PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
>
> all: $(FILES)
>
> -__BUILD = $(CC) $(CFLAGS) -MD -Wall -Werror -o $@ $(patsubst
> %.bin,%.c,$(@F)) $(LDFLAGS)
> +__BUILD = $(CC) $(CFLAGS) -MD -Wall -Werror
> -Wno-compound-token-split-by-macro -o $@ $(patsubst %.bin,%.c,$(@F))
> $(LDFLAGS)
> BUILD = $(__BUILD) > $(@:.bin=.make.output) 2>&1
>
> __BUILDXX = $(CXX) $(CXXFLAGS) -MD -Wall -Werror -o $@ $(patsubst
> %.bin,%.cpp,$(@F)) $(LDFLAGS)
> diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
> index 96ad944ca6a8..acc987daf56e 100644
> --- a/tools/perf/Makefile.config
> +++ b/tools/perf/Makefile.config
> @@ -213,7 +213,7 @@ endif
>
> # Treat warnings as errors unless directed not to
> ifneq ($(WERROR),0)
> - CORE_CFLAGS += -Werror
> + CORE_CFLAGS += -Werror -Wno-compound-token-split-by-macro
Ok, you added it right after -Werror, which is equivalent, in the
feature test case, to what I did.
I'll take that into account when working on having all this in a single
place, next merge window.
> CXXFLAGS += -Werror
> HOSTCFLAGS += -Werror
> endif
>
> With both patches I am able to build perf-5.17 with LLVM/Clang v14 and
> -std=gnu11 and perl v5.34.
>
> It's good when Jiri tests on his system.
Right, I'll test on these containers, with many gcc and clang versions:
1 almalinux:8 : Ok gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4) , clang version 12.0.1 (Red Hat 12.0.1-4.module_el8.5.0+1025+93159d6c)
2 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0 , clang version 3.8.0 (tags/RELEASE_380/final)
3 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822 , clang version 3.8.1 (tags/RELEASE_381/final)
4 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0 , clang version 4.0.0 (tags/RELEASE_400/final)
5 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0 , Alpine clang version 5.0.0 (tags/RELEASE_500/final) (based on LLVM 5.0.0)
6 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0 , Alpine clang version 5.0.1 (tags/RELEASE_501/final) (based on LLVM 5.0.1)
7 alpine:3.9 : Ok gcc (Alpine 8.3.0) 8.3.0 , Alpine clang version 5.0.1 (tags/RELEASE_502/final) (based on LLVM 5.0.1)
8 alpine:3.10 : Ok gcc (Alpine 8.3.0) 8.3.0 , Alpine clang version 8.0.0 (tags/RELEASE_800/final) (based on LLVM 8.0.0)
9 alpine:3.11 : Ok gcc (Alpine 9.3.0) 9.3.0 , Alpine clang version 9.0.0 (https://git.alpinelinux.org/aports f7f0d2c2b8bcd6a5843401a9a702029556492689) (based on LLVM 9.0.0)
10 alpine:3.12 : Ok gcc (Alpine 9.3.0) 9.3.0 , Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
11 alpine:3.13 : Ok gcc (Alpine 10.2.1_pre1) 10.2.1 20201203 , Alpine clang version 10.0.1
12 alpine:3.14 : Ok gcc (Alpine 10.3.1_git20210424) 10.3.1 20210424 , Alpine clang version 11.1.0
13 alpine:3.15 : Ok gcc (Alpine 10.3.1_git20211027) 10.3.1 20211027 , Alpine clang version 12.0.1
14 alpine:edge : Ok gcc (Alpine 11.2.1_git20220219) 11.2.1 20220219 , Alpine clang version 13.0.1
15 alt:p8 : Ok x86_64-alt-linux-gcc (GCC) 5.3.1 20151207 (ALT p8 5.3.1-alt3.M80P.1) , clang version 3.8.0 (tags/RELEASE_380/final)
16 alt:p9 : Ok x86_64-alt-linux-gcc (GCC) 8.4.1 20200305 (ALT p9 8.4.1-alt0.p9.1) , clang version 10.0.0
17 alt:p10 : Ok x86_64-alt-linux-gcc (GCC) 10.3.1 20210703 (ALT Sisyphus 10.3.1-alt2) , clang version 11.0.1
18 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 11.2.1 20211202 (ALT Sisyphus 11.2.1-alt2) , ALT Linux Team clang version 12.0.1
19 amazonlinux:1 : Ok gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2) , clang version 3.6.2 (tags/RELEASE_362/final)
20 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-13) , clang version 11.1.0 (Amazon Linux 2 11.1.0-1.amzn2.0.2)
21 amazonlinux:devel : Ok gcc (GCC) 11.2.1 20210728 (Red Hat 11.2.1-2) , clang version 12.0.1 (Fedora 12.0.1-1.amzn2022)
22 archlinux:base : FAIL clang version 13.0.1
23 centos:8 : Ok gcc (GCC) 8.4.1 20200928 (Red Hat 8.4.1-1) , clang version 11.0.1 (Red Hat 11.0.1-1.module_el8.4.0+966+2995ef20)
24 centos:stream : Ok gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-10) , clang version 13.0.0 (Red Hat 13.0.0-3.module_el8.6.0+1074+380cef3f)
25 clearlinux:latest : Ok gcc (Clear Linux OS for Intel Architecture) 11.2.1 20220322 releases/gcc-11.2.0-884-gf45603f39b , clang version 13.0.0
26 debian:9 : Ok gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 , clang version 3.8.1-24 (tags/RELEASE_381/final)
27 debian:10 : Ok gcc (Debian 8.3.0-6) 8.3.0 , Debian clang version 11.0.1-2~deb10u1
28 debian:11 : Ok gcc (Debian 10.2.1-6) 10.2.1 20210110 , Debian clang version 11.0.1-2
29 debian:experimental : Ok gcc (Debian 11.2.0-19) 11.2.0 , Debian clang version 13.0.1-3+b2
30 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 11.2.0-18) 11.2.0
31 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 11.2.0-18) 11.2.0
32 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 10.2.1-6) 10.2.1 20210110
33 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 11.2.0-18) 11.2.0
34 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6) , clang version 3.5.0 (tags/RELEASE_350/final)
35 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6) , clang version 3.7.0 (tags/RELEASE_370/final)
36 fedora:24 : Ok gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1) , clang version 3.8.1 (tags/RELEASE_381/final)
37 fedora:24-x-ARC-uClibc : Ok arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
38 fedora:25 : Ok gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1) , clang version 3.9.1 (tags/RELEASE_391/final)
39 fedora:26 : Ok gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2) , clang version 4.0.1 (tags/RELEASE_401/final)
40 fedora:27 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6) , clang version 5.0.2 (tags/RELEASE_502/final)
41 fedora:28 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2) , clang version 6.0.1 (tags/RELEASE_601/final)
42 fedora:29 : Ok gcc (GCC) 8.3.1 20190223 (Red Hat 8.3.1-2) , clang version 7.0.1 (Fedora 7.0.1-6.fc29)
43 fedora:30 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2) , clang version 8.0.0 (Fedora 8.0.0-3.fc30)
44 fedora:31 : Ok gcc (GCC) 9.3.1 20200408 (Red Hat 9.3.1-2) , clang version 9.0.1 (Fedora 9.0.1-4.fc31)
45 fedora:32 : Ok gcc (GCC) 10.3.1 20210422 (Red Hat 10.3.1-1) , clang version 10.0.1 (Fedora 10.0.1-3.fc32)
46 fedora:33 : Ok gcc (GCC) 10.3.1 20210422 (Red Hat 10.3.1-1) , clang version 11.0.0 (Fedora 11.0.0-3.fc33)
47 fedora:34 : Ok gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9) , clang version 12.0.1 (Fedora 12.0.1-1.fc34)
48 fedora:34-x-ARC-glibc : Ok arc-linux-gcc (ARC HS GNU/Linux glibc toolchain 2019.03-rc1) 8.3.1 20190225
49 fedora:34-x-ARC-uClibc : Ok arc-linux-gcc (ARCv2 ISA Linux uClibc toolchain 2019.03-rc1) 8.3.1 20190225
50 fedora:35 : Ok gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9) , clang version 13.0.0 (Fedora 13.0.0-3.fc35)
51 fedora:36 : FAIL gcc version 12.0.1 20220308 (Red Hat 12.0.1-0) (GCC)
52 fedora:rawhide : Ok gcc (GCC) 12.0.1 20220308 (Red Hat 12.0.1-0) , clang version 13.0.1 (Fedora 13.0.1-1.fc37)
53 gentoo-stage3:latest : Ok gcc (Gentoo 11.2.0 p1) 11.2.0 , clang version 13.0.0
54 mageia:6 : Ok gcc (Mageia 5.5.0-1.mga6) 5.5.0 , clang version 3.9.1 (tags/RELEASE_391/final)
55 mageia:7 : FAIL clang version 8.0.0 (Mageia 8.0.0-1.mga7)
56 manjaro:base : Ok gcc (GCC) 11.1.0 , clang version 13.0.0
57 openmandriva:4.2 : FAIL gcc version 11.2.0 20210728 (OpenMandriva) (GCC)
58 openmandriva:cooker : FAIL gcc version 11.2.0 20210728 (OpenMandriva) (GCC)
59 opensuse:15.0 : Ok gcc (SUSE Linux) 7.4.1 20190905 [gcc-7-branch revision 275407] , clang version 5.0.1 (tags/RELEASE_501/final 312548)
60 opensuse:15.1 : Ok gcc (SUSE Linux) 7.5.0 , clang version 7.0.1 (tags/RELEASE_701/final 349238)
61 opensuse:15.2 : Ok gcc (SUSE Linux) 7.5.0 , clang version 9.0.1
62 opensuse:15.3 : Ok gcc (SUSE Linux) 7.5.0 , clang version 11.0.1
63 opensuse:15.4 : Ok gcc (SUSE Linux) 7.5.0 , clang version 11.0.1
64 opensuse:tumbleweed : Ok gcc (SUSE Linux) 11.2.1 20211124 [revision 7510c23c1ec53aa4a62705f0384079661342ff7b] , clang version 13.0.0
65 oraclelinux:8 : Ok gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4.0.1) , clang version 12.0.1 (Red Hat 12.0.1-4.0.1.module+el8.5.0+20428+2b4ecd47)
66 rockylinux:8 : Ok gcc (GCC) 8.5.0 20210514 (Red Hat 8.5.0-4) , clang version 12.0.1 (Red Hat 12.0.1-4.module+el8.5.0+715+58f51d49)
67 ubuntu:16.04 : Ok gcc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609 , clang version 3.8.0-2ubuntu4 (tags/RELEASE_380/final)
68 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
69 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
70 ubuntu:16.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
71 ubuntu:16.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
72 ubuntu:16.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
73 ubuntu:16.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
74 ubuntu:18.04 : Ok gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0 , clang version 6.0.0-1ubuntu2 (tags/RELEASE_600/final)
75 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
76 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
77 ubuntu:18.04-x-m68k : Ok m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
78 ubuntu:18.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
79 ubuntu:18.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
80 ubuntu:18.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
81 ubuntu:18.04-x-riscv64 : Ok riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
82 ubuntu:18.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
83 ubuntu:18.04-x-sh4 : Ok sh4-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
84 ubuntu:18.04-x-sparc64 : Ok sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
85 ubuntu:20.04 : FAIL clang version 10.0.0-4ubuntu1
86 ubuntu:20.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0
87 ubuntu:20.10 : Ok gcc (Ubuntu 10.3.0-1ubuntu1~20.10) 10.3.0 , Ubuntu clang version 11.0.0-2
88 ubuntu:21.04 : Ok gcc (Ubuntu 10.3.0-1ubuntu1) 10.3.0 , Ubuntu clang version 12.0.0-3ubuntu1~21.04.2
89 ubuntu:21.10 : Ok gcc (Ubuntu 11.2.0-7ubuntu2) 11.2.0 , Ubuntu clang version 13.0.0-2
90 ubuntu:22.04 : FAIL gcc version 11.2.0 (Ubuntu 11.2.0-18ubuntu1)
> I can test your patch with my next kernel-build, but can not promise.
> Do you have it somewhere in a Git repo/branch or a (LORE) link for
> easy application?
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux.git tmp.perf/urgent
> Did not check if b4 tool is able to extract it as patch out of your
> original email.
>
> - Sedat -
> From 72ba634c9b39547197900d8b64ff36134af3ed08 Mon Sep 17 00:00:00 2001
> From: Sedat Dilek <sedat.dilek@...il.com>
> Date: Sun, 13 Mar 2022 12:37:06 +0100
> Subject: [PATCH] tools: feature-detect: libperl: Sync PERL_EMBED_CCOPTS with
> perf
>
> ---
> tools/build/feature/Makefile | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
> index 1480910c792e..fa6be127f483 100644
> --- a/tools/build/feature/Makefile
> +++ b/tools/build/feature/Makefile
> @@ -217,7 +217,8 @@ strip-libs = $(filter-out -l%,$(1))
> PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
> PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
> PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
> -PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
> +PERL_EMBED_CCOPTS = $(perl -MExtUtils::Embed -e ccopts 2>/dev/null)
> +PERL_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
> FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
>
> $(OUTPUT)test-libperl.bin:
> --
> 2.35.1
>
> From 316a1917ec05772ab0f99dad534fabdd74547865 Mon Sep 17 00:00:00 2001
> From: Sedat Dilek <sedat.dilek@...il.com>
> Date: Sun, 6 Mar 2022 11:29:50 +0100
> Subject: [PATCH] perf: Fix libperl support with clang and perl v5.34
>
> ---
> tools/build/feature/Makefile | 2 +-
> tools/perf/Makefile.config | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
> index 1480910c792e..ef9b37c5c652 100644
> --- a/tools/build/feature/Makefile
> +++ b/tools/build/feature/Makefile
> @@ -81,7 +81,7 @@ PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
>
> all: $(FILES)
>
> -__BUILD = $(CC) $(CFLAGS) -MD -Wall -Werror -o $@ $(patsubst %.bin,%.c,$(@F)) $(LDFLAGS)
> +__BUILD = $(CC) $(CFLAGS) -MD -Wall -Werror -Wno-compound-token-split-by-macro -o $@ $(patsubst %.bin,%.c,$(@F)) $(LDFLAGS)
> BUILD = $(__BUILD) > $(@:.bin=.make.output) 2>&1
>
> __BUILDXX = $(CXX) $(CXXFLAGS) -MD -Wall -Werror -o $@ $(patsubst %.bin,%.cpp,$(@F)) $(LDFLAGS)
> diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
> index 96ad944ca6a8..acc987daf56e 100644
> --- a/tools/perf/Makefile.config
> +++ b/tools/perf/Makefile.config
> @@ -213,7 +213,7 @@ endif
>
> # Treat warnings as errors unless directed not to
> ifneq ($(WERROR),0)
> - CORE_CFLAGS += -Werror
> + CORE_CFLAGS += -Werror -Wno-compound-token-split-by-macro
> CXXFLAGS += -Werror
> HOSTCFLAGS += -Werror
> endif
> --
> 2.35.1
>
- Arnaldo
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