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SubjectRe: [PATCH v3 0/10] libperf and arm64 userspace counter access support
Rob,
V3 fails to build on ThunderX2:

$ make
BUILD: Doing 'make -j224' parallel build

Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... gtk2: [ OFF ]
... libbfd: [ on ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ OFF ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ OFF ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]

Makefile.config:604: No libunwind found. Please install
libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR
Makefile.config:730: GTK2 not found, disables GTK2 support. Please
install gtk2-devel or libgtk2.0-dev
Makefile.config:965: No libbabeltrace found, disables 'perf data' CTF
format support, please install
libbabeltrace-dev[el]/libbabeltrace-ctf-dev
Makefile.config:1009: No openjdk development package found, please
install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel
CC arch/arm64/tests/user-events.o
CC arch/arm64/tests/arch-tests.o
In file included from arch/arm64/tests/arch-tests.c:4:
/home/users/itaru.kitayama/projects/linux/tools/perf/arch/arm64/include/arch-tests.h:10:5:
error: redundant redeclaration of ‘test__arch_unwind_sample’
[-Werror=redundant-decls]
int test__arch_unwind_sample(struct perf_sample *sample,
^~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/arm64/tests/arch-tests.c:3:
/home/users/itaru.kitayama/projects/linux/tools/perf/tests/tests.h:134:5:
note: previous declaration of ‘test__arch_unwind_sample’ was here
int test__arch_unwind_sample(struct perf_sample *sample,
^~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/users/itaru.kitayama/projects/linux/tools/build/Makefile.build:97:
arch/arm64/tests/arch-tests.o] Error 1
make[6]: *** Waiting for unfinished jobs....
In file included from arch/arm64/tests/user-events.c:13:
/home/users/itaru.kitayama/projects/linux/tools/perf/arch/arm64/include/arch-tests.h:10:5:
error: redundant redeclaration of ‘test__arch_unwind_sample’
[-Werror=redundant-decls]
int test__arch_unwind_sample(struct perf_sample *sample,
^~~~~~~~~~~~~~~~~~~~~~~~
In file included from arch/arm64/tests/user-events.c:12:
/home/users/itaru.kitayama/projects/linux/tools/perf/tests/tests.h:134:5:
note: previous declaration of ‘test__arch_unwind_sample’ was here
int test__arch_unwind_sample(struct perf_sample *sample,
^~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/tests/user-events.c: In function ‘perf_init’:
arch/arm64/tests/user-events.c:106:7: error: too few arguments to
function ‘perf_evsel__mmap’
if (!perf_evsel__mmap(evsel)) {
^~~~~~~~~~~~~~~~
In file included from arch/arm64/tests/user-events.c:8:
/home/users/itaru.kitayama/projects/linux/tools/lib/perf/include/perf/evsel.h:31:19:
note: declared here
LIBPERF_API void *perf_evsel__mmap(struct perf_evsel *evsel, size_t length);
^~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[6]: *** [/home/users/itaru.kitayama/projects/linux/tools/build/Makefile.build:97:
arch/arm64/tests/user-events.o] Error 1
make[5]: *** [/home/users/itaru.kitayama/projects/linux/tools/build/Makefile.build:139:
tests] Error 2
make[4]: *** [/home/users/itaru.kitayama/projects/linux/tools/build/Makefile.build:139:
arm64] Error 2
make[3]: *** [/home/users/itaru.kitayama/projects/linux/tools/build/Makefile.build:139:
arch] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [Makefile.perf:634: perf-in.o] Error 2
make[1]: *** [Makefile.perf:233: sub-make] Error 2
make: *** [Makefile:70: all] Error 2

On Wed, Sep 16, 2020 at 11:50 AM Rob Herring <robh@kernel.org> wrote:
>
> On Mon, Sep 14, 2020 at 5:14 PM Itaru Kitayama <itaru.kitayama@gmail.com> wrote:
> >
> > Could you point us to your repo too?
>
> Sure, pushed a branch here:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git user-perf-event-v3
>
> Rob

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