Re: [BUG] jevents problem when cross building Re: [PATCH 2/3] perf tools: Allow to enable/disable events via control file

Arnaldo Carvalho de Melo
2020-12-10T18:20:05Z

Em Thu, Dec 10, 2020 at 05:44:51PM +0000, John Garry escreveu:
>
> > > > > > > + evsel_name = cmd_data + sizeof(EVLIST_CTL_CMD_ENABLE_EVSEL_TAG) - 1;
> > >
> > > > > > It makes sense to check that evsel_name still points
> > > > > > into cmd_data buffer after assigning to event name.
> > > > > right, will add that
> > > > So, I'm finishing test builds, so probably I'll push the first two
> > > > patches publicly and then you can send a patch on top of this, ok?
> > > > Unless the tests break somewhere and then I'll have to restart, so I'll
> > > > fold in whatever gets at that time...
> > > That was quick:
> > > [perfbuilder@five ~]$ time dm
> > > Thu Dec 10 01:44:52 PM -03 2020
> > > # export PERF_TARBALL=http://192.168.86.5/perf/perf-5.10.0-rc6.tar.xz
> > > # dm
> > > 1 78.47 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0, clang version 3.8.0 (tags/RELEASE_380/final)
> > > 2 104.38 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822, clang version 3.8.1 (tags/RELEASE_381/final)
> > > 3 105.64 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0, clang version 4.0.0 (tags/RELEASE_400/final)
> > > 4 96.52 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)
> > > 5 81.08 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)
> > > 6 85.20 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)
> > > 7 106.10 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)
> > > 8 120.20 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)
> > > 9 109.99 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)
> > > 10 117.76 alpine:edge : Ok gcc (Alpine 10.2.0) 10.2.0, Alpine clang version 10.0.1
> > > 11 69.15 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)
> > > 12 84.55 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
> > > 13 82.69 alt:sisyphus : Ok x86_64-alt-linux-gcc (GCC) 9.3.1 20200518 (ALT Sisyphus 9.3.1-alt1), clang version 10.0.1
> > > 14 66.22 amazonlinux:1 : Ok gcc (GCC) 7.2.1 20170915 (Red Hat 7.2.1-2), clang version 3.6.2 (tags/RELEASE_362/final)
> > > 15 100.16 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-9), clang version 7.0.1 (Amazon Linux 2 7.0.1-1.amzn2.0.2)
> > > 16 11.20 android-ndk:r12b-arm : FAIL arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
> > > 17 11.90 android-ndk:r15c-arm : FAIL arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
> > > 18 26.33 centos:6 : Ok gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
> > > 19 31.80 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44)
> > > 20 116.02 centos:8 : Ok gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5), clang version 9.0.1 (Red Hat 9.0.1-2.module_el8.2.0+309+0c7b6b03)
> > > 21 62.27 clearlinux:latest : Ok gcc (Clear Linux OS for Intel Architecture) 10.2.1 20201106 releases/gcc-10.2.0-475-g099857318c, clang version 10.0.1
> > > 22 77.82 debian:8 : Ok gcc (Debian 4.9.2-10+deb8u2) 4.9.2, Debian clang version 3.5.0-10 (tags/RELEASE_350/final) (based on LLVM 3.5.0)
> > > 23: debian:9
> > >
> > >
> > > There I go...
> > >
> > > [perfbuilder@five ~]$ tail -20 dm.log/android-ndk\:r12b-arm
> > > FLEX /tmp/build/perf/util/expr-flex.c
> > > CC /tmp/build/perf/util/pmu-bison.o
> > > CC /tmp/build/perf/util/expr-bison.o
> > > CC /tmp/build/perf/util/expr-flex.o
> > > CC /tmp/build/perf/util/expr.o
> > > CC /tmp/build/perf/util/parse-events.o
> > > CC /tmp/build/perf/util/parse-events-flex.o
> > > CC /tmp/build/perf/util/pmu.o
> > > CC /tmp/build/perf/util/pmu-flex.o
> > > LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
> > > LD /tmp/build/perf/util/perf-in.o
> > > LD /tmp/build/perf/perf-in.o
> > > LINK /tmp/build/perf/perf
> > > /tmp/build/perf/perf-in.o:hist.c:function pmu_for_each_sys_event: error: undefined reference to 'pmu_sys_event_tables'
> > > collect2: error: ld returned 1 exit status
> > > make[2]: *** [Makefile.perf:659: /tmp/build/perf/perf] Error 1
> > > make[1]: *** [Makefile.perf:233: sub-make] Error 2
> > > make: *** [Makefile:70: all] Error 2
> > > make: Leaving directory '/git/linux/tools/perf'
> > > + exit 1
> > > [perfbuilder@five ~]
> > >
> > > Now to figure out who generates this pmu_sys_event_tables, John?
> >
> > One more:
> >
> > [perfbuilder@five ~]$ tail -20 dm.log/debian\:experimental-x-mips64
> > CC /tmp/build/perf/util/expr-bison.o
> > CC /tmp/build/perf/util/parse-events.o
> > CC /tmp/build/perf/util/pmu.o
> > CC /tmp/build/perf/util/parse-events-flex.o
> > CC /tmp/build/perf/util/pmu-flex.o
> > CC /tmp/build/perf/util/expr-flex.o
> > CC /tmp/build/perf/util/expr.o
> > LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
> > LD /tmp/build/perf/util/perf-in.o
> > LD /tmp/build/perf/perf-in.o
> > LINK /tmp/build/perf/perf
> > /usr/lib/gcc-cross/mips64-linux-gnuabi64/9/../../../../mips64-linux-gnuabi64/bin/ld: /tmp/build/perf/perf-in.o: in function `pmu_for_each_sys_event':
> > /git/linux/tools/perf/util/pmu.c:825: undefined reference to `pmu_sys_event_tables'
> > /usr/lib/gcc-cross/mips64-linux-gnuabi64/9/../../../../mips64-linux-gnuabi64/bin/ld: /git/linux/tools/perf/util/pmu.c:825: undefined reference to `pmu_sys_event_tables'
> > collect2: error: ld returned 1 exit status
> > make[2]: *** [Makefile.perf:659: /tmp/build/perf/perf] Error 1
> > make[1]: *** [Makefile.perf:233: sub-make] Error 2
> > make: *** [Makefile:70: all] Error 2
> > make: Leaving directory '/git/linux/tools/perf'
> > + exit 1
> > [perfbuilder@five ~]$
> >
> > And another:
> >
> > [perfbuilder@five ~]$ tail -20 dm.log/fedora:24-x-ARC-uClibc
> > CC /tmp/build/perf/util/expr.o
> > LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
> > LD /tmp/build/perf/util/perf-in.o
> > LD /tmp/build/perf/perf-in.o
> > LINK /tmp/build/perf/perf
> > /tmp/build/perf/perf-in.o: In function `pmu_for_each_sys_event':
> > /git/linux/tools/perf/util/pmu.c:816: undefined reference to `pmu_sys_event_tables'
> > /git/linux/tools/perf/util/pmu.c:816: undefined reference to `pmu_sys_event_tables'
> > /tmp/build/perf/perf-in.o: In function `pmu_add_sys_aliases':
> > /git/linux/tools/perf/util/pmu.c:886: undefined reference to `pmu_sys_event_tables'
> > /git/linux/tools/perf/util/pmu.c:886: undefined reference to `pmu_sys_event_tables'
> > collect2: error: ld returned 1 exit status
> > Makefile.perf:659: recipe for target '/tmp/build/perf/perf' failed
> > make[2]: *** [/tmp/build/perf/perf] Error 1
> > Makefile.perf:232: recipe for target 'sub-make' failed
> > make[1]: *** [sub-make] Error 2
> > Makefile:69: recipe for target 'all' failed
> > make: *** [all] Error 2
> > make: Leaving directory '/git/linux/tools/perf'
> > + exit 1
> > [perfbuilder@five ~]$
> >
>
> Hi Arnaldo,
>
> I'm not sure what is going on here.
>
> So symbol 'pmu_sys_event_tables' is introduced in https://lore.kernel.org/linux-arm-kernel/1607080216-36968-3-git-send-email-john.garry@huawei.com/,
> but I did not think that you picked any of this series up yet, right?
>
> I checked your perf/core branch, and no sign, so which git/branch is this?

Its unpublished, I'll send it to the tmp.perf/core branch now.

More results from testing:

59 13.57 ubuntu:16.04-x-arm : FAIL arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609

[perfbuilder@five ~]$ tail -20 dm.log/ubuntu\:16.04-x-arm
CC /tmp/build/perf/util/expr.o
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/tmp/build/perf/perf-in.o: In function `pmu_for_each_sys_event':
/git/linux/tools/perf/util/pmu.c:816: undefined reference to `pmu_sys_event_tables'
/git/linux/tools/perf/util/pmu.c:816: undefined reference to `pmu_sys_event_tables'
/tmp/build/perf/perf-in.o: In function `pmu_add_sys_aliases':
/git/linux/tools/perf/util/pmu.c:886: undefined reference to `pmu_sys_event_tables'
/git/linux/tools/perf/util/pmu.c:886: undefined reference to `pmu_sys_event_tables'
collect2: error: ld returned 1 exit status
Makefile.perf:659: recipe for target '/tmp/build/perf/perf' failed
make[2]: *** [/tmp/build/perf/perf] Error 1
Makefile.perf:232: recipe for target 'sub-make' failed
make[1]: *** [sub-make] Error 2
Makefile:69: recipe for target 'all' failed
make: *** [all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[perfbuilder@five ~]$

60 26.91 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
61 25.62 ubuntu:16.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
62 26.39 ubuntu:16.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
63 25.92 ubuntu:16.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
64 25.96 ubuntu:16.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
65 89.87 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)
66 14.45 ubuntu:18.04-x-arm : FAIL arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0

[perfbuilder@five ~]$ tail -20 dm.log/ubuntu\:18.04-x-arm
CC /tmp/build/perf/util/pmu-flex.o
CC /tmp/build/perf/util/expr-flex.o
CC /tmp/build/perf/util/expr.o
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/tmp/build/perf/perf-in.o: In function `pmu_for_each_sys_event':
/git/linux/tools/perf/util/pmu.c:840: undefined reference to `pmu_sys_event_tables'
/tmp/build/perf/perf-in.o: In function `perf_pmu__find':
/git/linux/tools/perf/util/pmu.c:1031: undefined reference to `pmu_sys_event_tables'
collect2: error: ld returned 1 exit status
Makefile.perf:659: recipe for target '/tmp/build/perf/perf' failed
make[2]: *** [/tmp/build/perf/perf] Error 1
Makefile.perf:232: recipe for target 'sub-make' failed
make[1]: *** [sub-make] Error 2
Makefile:69: recipe for target 'all' failed
make: *** [all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[perfbuilder@five ~]$

67 27.63 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0
68 12.06 ubuntu:18.04-x-m68k : FAIL m68k-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0

[perfbuilder@five ~]$ tail -20 dm.log/ubuntu\:18.04-x-m68k
CC /tmp/build/perf/util/pmu-flex.o
CC /tmp/build/perf/util/expr-flex.o
CC /tmp/build/perf/util/expr.o
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/tmp/build/perf/perf-in.o: In function `pmu_for_each_sys_event':
/git/linux/tools/perf/util/pmu.c:816: undefined reference to `pmu_sys_event_tables'
/tmp/build/perf/perf-in.o: In function `pmu_add_sys_aliases':
/git/linux/tools/perf/util/pmu.c:886: undefined reference to `pmu_sys_event_tables'
collect2: error: ld returned 1 exit status
Makefile.perf:659: recipe for target '/tmp/build/perf/perf' failed
make[2]: *** [/tmp/build/perf/perf] Error 1
Makefile.perf:232: recipe for target 'sub-make' failed
make[1]: *** [sub-make] Error 2
Makefile:69: recipe for target 'all' failed
make: *** [all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[perfbuilder@five ~]$

69 27.21 ubuntu:18.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
70 29.40 ubuntu:18.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
71 29.56 ubuntu:18.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
72 63.55 ubuntu:18.04-x-riscv64 : FAIL riscv64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0

[perfbuilder@five ~]$ tail -20 dm.log/ubuntu\:18.04-x-riscv64
CC /tmp/build/perf/util/parse-events-flex.o
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/tmp/build/perf/perf-in.o: In function `replace_android_lib':
/git/linux/tools/perf/util/map.c:45: undefined reference to `pmu_sys_event_tables'
/git/linux/tools/perf/util/map.c:47: undefined reference to `pmu_sys_event_tables'
/tmp/build/perf/perf-in.o: In function `snprintf':
/usr/riscv64-linux-gnu/include/bits/stdio2.h:64: undefined reference to `pmu_sys_event_tables'
/usr/riscv64-linux-gnu/include/bits/stdio2.h:64: undefined reference to `pmu_sys_event_tables'
collect2: error: ld returned 1 exit status
Makefile.perf:659: recipe for target '/tmp/build/perf/perf' failed
make[2]: *** [/tmp/build/perf/perf] Error 1
Makefile.perf:232: recipe for target 'sub-make' failed
make[1]: *** [sub-make] Error 2
Makefile:69: recipe for target 'all' failed
make: *** [all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[perfbuilder@five ~]$

73 24.68 ubuntu:18.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
74 13.29 ubuntu:18.04-x-sh4 : FAIL sh4-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0

[perfbuilder@five ~]$ tail -20 dm.log/ubuntu\:18.04-x-sh4
CC /tmp/build/perf/util/pmu-flex.o
CC /tmp/build/perf/util/expr-flex.o
CC /tmp/build/perf/util/expr.o
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/tmp/build/perf/perf-in.o: In function `pmu_for_each_sys_event':
/git/linux/tools/perf/util/pmu.c:840: undefined reference to `pmu_sys_event_tables'
/tmp/build/perf/perf-in.o: In function `perf_pmu__find':
/git/linux/tools/perf/util/pmu.c:1031: undefined reference to `pmu_sys_event_tables'
collect2: error: ld returned 1 exit status
Makefile.perf:659: recipe for target '/tmp/build/perf/perf' failed
make[2]: *** [/tmp/build/perf/perf] Error 1
Makefile.perf:232: recipe for target 'sub-make' failed
make[1]: *** [sub-make] Error 2
Makefile:69: recipe for target 'all' failed
make: *** [all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[perfbuilder@five ~]$

75 12.49 ubuntu:18.04-x-sparc64 : FAIL sparc64-linux-gnu-gcc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0

[perfbuilder@five ~]$ tail -20 dm.log/ubuntu\:18.04-x-sparc64
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/tmp/build/perf/perf-in.o: In function `pmu_for_each_sys_event':
/git/linux/tools/perf/util/pmu.c:816: undefined reference to `pmu_sys_event_tables'
/git/linux/tools/perf/util/pmu.c:816: undefined reference to `pmu_sys_event_tables'
/tmp/build/perf/perf-in.o: In function `pmu_add_sys_aliases':
/git/linux/tools/perf/util/pmu.c:886: undefined reference to `pmu_sys_event_tables'
/tmp/build/perf/perf-in.o: In function `pmu_uncore_alias_match':
/git/linux/tools/perf/util/pmu.c:732: undefined reference to `pmu_sys_event_tables'
collect2: error: ld returned 1 exit status
Makefile.perf:659: recipe for target '/tmp/build/perf/perf' failed
make[2]: *** [/tmp/build/perf/perf] Error 1
Makefile.perf:232: recipe for target 'sub-make' failed
make[1]: *** [sub-make] Error 2
Makefile:69: recipe for target 'all' failed
make: *** [all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[perfbuilder@five ~]$

76 69.65 ubuntu:19.10 : Ok gcc (Ubuntu 9.2.1-9ubuntu2) 9.2.1 20191008, clang version 8.0.1-3build1 (tags/RELEASE_801/final)
77 13.58 ubuntu:19.10-x-alpha : FAIL alpha-linux-gnu-gcc (Ubuntu 9.2.1-9ubuntu1) 9.2.1 20191008

[perfbuilder@five ~]$ tail -20 dm.log/ubuntu\:19.10-x-alpha
CC /tmp/build/perf/util/expr-bison.o
CC /tmp/build/perf/util/parse-events.o
CC /tmp/build/perf/util/parse-events-flex.o
CC /tmp/build/perf/util/expr-flex.o
CC /tmp/build/perf/util/expr.o
CC /tmp/build/perf/util/pmu.o
CC /tmp/build/perf/util/pmu-flex.o
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/usr/lib/gcc-cross/alpha-linux-gnu/9/../../../../alpha-linux-gnu/bin/ld: /tmp/build/perf/perf-in.o: in function `pmu_for_each_sys_event':
/git/linux/tools/perf/util/pmu.c:825: undefined reference to `pmu_sys_event_tables'
/usr/lib/gcc-cross/alpha-linux-gnu/9/../../../../alpha-linux-gnu/bin/ld: /git/linux/tools/perf/util/pmu.c:825: undefined reference to `pmu_sys_event_tables'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile.perf:659: /tmp/build/perf/perf] Error 1
make[1]: *** [Makefile.perf:233: sub-make] Error 2
make: *** [Makefile:70: all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[perfbuilder@five ~]$

78 12.64 ubuntu:19.10-x-hppa : FAIL hppa-linux-gnu-gcc (Ubuntu 9.2.1-9ubuntu1) 9.2.1 20191008

[perfbuilder@five ~]$ tail -20 dm.log/ubuntu\:19.10-x-hppa
CC /tmp/build/perf/util/pmu.o
CC /tmp/build/perf/util/pmu-flex.o
CC /tmp/build/perf/util/expr-flex.o
LD /tmp/build/perf/util/intel-pt-decoder/perf-in.o
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
/usr/lib/gcc-cross/hppa-linux-gnu/9/../../../../hppa-linux-gnu/bin/ld: /tmp/build/perf/perf-in.o: in function `pmu_for_each_sys_event':
/git/linux/tools/perf/util/pmu.c:825: undefined reference to `pmu_sys_event_tables'
/usr/lib/gcc-cross/hppa-linux-gnu/9/../../../../hppa-linux-gnu/bin/ld: /git/linux/tools/perf/util/pmu.c:825: undefined reference to `pmu_sys_event_tables'
/usr/lib/gcc-cross/hppa-linux-gnu/9/../../../../hppa-linux-gnu/bin/ld: /tmp/build/perf/perf-in.o: in function `pmu_add_sys_aliases':
/git/linux/tools/perf/util/pmu.c:886: undefined reference to `pmu_sys_event_tables'
/usr/lib/gcc-cross/hppa-linux-gnu/9/../../../../hppa-linux-gnu/bin/ld: /tmp/build/perf/perf-in.o: in function `pmu_for_each_sys_event':
/git/linux/tools/perf/util/pmu.c:825: undefined reference to `pmu_sys_event_tables'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile.perf:659: /tmp/build/perf/perf] Error 1
make[1]: *** [Makefile.perf:233: sub-make] Error 2
make: *** [Makefile:70: all] Error 2
make: Leaving directory '/git/linux/tools/perf'
+ exit 1
[perfbuilder@five ~]$

79 75.25 ubuntu:20.04 : Ok gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0, clang version 10.0.0-4ubuntu1
80 31.39 ubuntu:20.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 10.2.0-5ubuntu1~20.04) 10.2.0
81 75.09 ubuntu:20.10 : Ok gcc (Ubuntu 10.2.0-13ubuntu1) 10.2.0, Ubuntu clang version 11.0.0-2