Em Thu, Mar 18, 2021 at 10:15:13PM +0100, Jiri Olsa escreveu:
> On Tue, Mar 16, 2021 at 02:18:35PM -0700, Song Liu wrote:
> > bperf is off by default. To enable it, pass --bpf-counters option to
> > perf-stat. bperf uses a BPF hashmap to share information about BPF
> > programs and maps used by bperf. This map is pinned to bpffs. The default
> > path is /sys/fs/bpf/perf_attr_map. The user could change the path with
> > option --bpf-attr-map.
> >
> > Signed-off-by: Song Liu <songliubrav...@fb.com>
>
> Reviewed-by: Jiri Olsa <jo...@redhat.com>
After applying just this first patch in the series I'm getting this
after a 'make -C tools/ clean', now I'm checking if I need some new
clang, ideas?
- Arnaldo
[acme@quaco perf]$ make O=/tmp/build/perf -C tools/perf BUILD_BPF_SKEL=1
PYTHON=python3 install-bin
make: Entering directory '/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j8' parallel build
Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from
latest version at 'include/uapi/linux/kvm.h'
diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
Warning: Kernel ABI header at
'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest
version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl
arch/mips/kernel/syscalls/syscall_n64.tbl
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... libbfd: [ on ]
... libbfd-buildid: [ on ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]
GEN /tmp/build/perf/common-cmds.h
CC /tmp/build/perf/exec-cmd.o
MKDIR /tmp/build/perf/fd/
MKDIR /tmp/build/perf/fs/
CC /tmp/build/perf/fs/fs.o
CC /tmp/build/perf/event-parse.o
CC /tmp/build/perf/fd/array.o
CC /tmp/build/perf/core.o
GEN /tmp/build/perf/bpf_helper_defs.h
CC /tmp/build/perf/event-plugin.o
MKDIR /tmp/build/perf/staticobjs/
PERF_VERSION = 5.12.rc2.g3df07f57f205
CC /tmp/build/perf/staticobjs/libbpf.o
CC /tmp/build/perf/cpu.o
LD /tmp/build/perf/fd/libapi-in.o
CC /tmp/build/perf/cpumap.o
CC /tmp/build/perf/help.o
MKDIR /tmp/build/perf/fs/
CC /tmp/build/perf/fs/tracing_path.o
CC /tmp/build/perf/fs/cgroup.o
CC /tmp/build/perf/trace-seq.o
CC /tmp/build/perf/pager.o
CC /tmp/build/perf/parse-options.o
LD /tmp/build/perf/fs/libapi-in.o
CC /tmp/build/perf/debug.o
CC /tmp/build/perf/str_error_r.o
CC /tmp/build/perf/run-command.o
CC /tmp/build/perf/sigchain.o
LD /tmp/build/perf/libapi-in.o
AR /tmp/build/perf/libapi.a
CC /tmp/build/perf/subcmd-config.o
CC /tmp/build/perf/threadmap.o
CC /tmp/build/perf/evsel.o
CC /tmp/build/perf/parse-filter.o
MKDIR /tmp/build/perf/staticobjs/
CC /tmp/build/perf/staticobjs/bpf.o
CC /tmp/build/perf/evlist.o
CC /tmp/build/perf/parse-utils.o
CC /tmp/build/perf/kbuffer-parse.o
CC /tmp/build/perf/tep_strerror.o
CC /tmp/build/perf/mmap.o
CC /tmp/build/perf/zalloc.o
CC /tmp/build/perf/event-parse-api.o
LD /tmp/build/perf/libsubcmd-in.o
AR /tmp/build/perf/libsubcmd.a
CC /tmp/build/perf/xyarray.o
LD /tmp/build/perf/libtraceevent-in.o
LINK /tmp/build/perf/libtraceevent.a
CC /tmp/build/perf/staticobjs/nlattr.o
CC /tmp/build/perf/staticobjs/btf.o
CC /tmp/build/perf/lib.o
CC /tmp/build/perf/staticobjs/libbpf_errno.o
CC /tmp/build/perf/staticobjs/str_error.o
CC /tmp/build/perf/staticobjs/netlink.o
CC /tmp/build/perf/staticobjs/bpf_prog_linfo.o
CC /tmp/build/perf/staticobjs/libbpf_probes.o
LD /tmp/build/perf/libperf-in.o
AR /tmp/build/perf/libperf.a
MKDIR /tmp/build/perf/pmu-events/
HOSTCC /tmp/build/perf/pmu-events/json.o
CC /tmp/build/perf/plugin_jbd2.o
CC /tmp/build/perf/staticobjs/xsk.o
MKDIR /tmp/build/perf/pmu-events/
HOSTCC /tmp/build/perf/pmu-events/jsmn.o
CC /tmp/build/perf/staticobjs/hashmap.o
LD /tmp/build/perf/plugin_jbd2-in.o
CC /tmp/build/perf/staticobjs/btf_dump.o
CC /tmp/build/perf/plugin_hrtimer.o
HOSTCC /tmp/build/perf/pmu-events/jevents.o
LD /tmp/build/perf/plugin_hrtimer-in.o
CC /tmp/build/perf/plugin_kmem.o
CC /tmp/build/perf/staticobjs/ringbuf.o
LD /tmp/build/perf/plugin_kmem-in.o
CC /tmp/build/perf/plugin_kvm.o
HOSTLD /tmp/build/perf/pmu-events/jevents-in.o
CC /tmp/build/perf/perf-read-vdso32
CC /tmp/build/perf/plugin_mac80211.o
LD /tmp/build/perf/plugin_kvm-in.o
CC /tmp/build/perf/plugin_sched_switch.o
CC /tmp/build/perf/plugin_function.o
MKDIR /tmp/build/perf/jvmti/
CC /tmp/build/perf/jvmti/libjvmti.o
LD /tmp/build/perf/plugin_mac80211-in.o
GEN perf-archive
LD /tmp/build/perf/plugin_sched_switch-in.o
CC /tmp/build/perf/plugin_futex.o
CC /tmp/build/perf/plugin_xen.o
CC /tmp/build/perf/plugin_scsi.o
LD /tmp/build/perf/plugin_function-in.o
CC /tmp/build/perf/plugin_cfg80211.o
LD /tmp/build/perf/plugin_futex-in.o
LD /tmp/build/perf/plugin_xen-in.o
LINK /tmp/build/perf/plugin_jbd2.so
LINK /tmp/build/perf/plugin_hrtimer.so
CC /tmp/build/perf/plugin_tlb.o
LINK /tmp/build/perf/plugin_kmem.so
LINK /tmp/build/perf/plugin_kvm.so
LD /tmp/build/perf/plugin_scsi-in.o
LINK /tmp/build/perf/plugin_mac80211.so
LINK /tmp/build/perf/plugin_sched_switch.so
LINK /tmp/build/perf/plugin_function.so
LINK /tmp/build/perf/plugin_futex.so
LD /tmp/build/perf/plugin_cfg80211-in.o
LINK /tmp/build/perf/plugin_xen.so
LINK /tmp/build/perf/plugin_scsi.so
LD /tmp/build/perf/plugin_tlb-in.o
MKDIR /tmp/build/perf/jvmti/
LINK /tmp/build/perf/plugin_cfg80211.so
CC /tmp/build/perf/jvmti/jvmti_agent.o
LINK /tmp/build/perf/plugin_tlb.so
GEN perf-with-kcore
CC /tmp/build/perf/jvmti/libstring.o
CFLAGS= make -C ../bpf/bpftool \
OUTPUT=/tmp/build/perf/util/bpf_skel/.tmp/ bootstrap
CC /tmp/build/perf/jvmti/libctype.o
GEN /tmp/build/perf/libtraceevent-dynamic-list
LINK /tmp/build/perf/pmu-events/jevents
DESCEND plugins
GEN /tmp/build/perf/python/perf.so
GEN /tmp/build/perf/pmu-events/pmu-events.c
CC /tmp/build/perf/plugins/plugin_jbd2.o
CC /tmp/build/perf/plugins/plugin_hrtimer.o
LD /tmp/build/perf/plugins/plugin_jbd2-in.o
LD /tmp/build/perf/plugins/plugin_hrtimer-in.o
CC /tmp/build/perf/plugins/plugin_kmem.o
CC /tmp/build/perf/plugins/plugin_kvm.o
LD /tmp/build/perf/jvmti/jvmti-in.o
LD /tmp/build/perf/plugins/plugin_kmem-in.o
LINK /tmp/build/perf/libperf-jvmti.so
CC /tmp/build/perf/plugins/plugin_mac80211.o
CC /tmp/build/perf/plugins/plugin_sched_switch.o
CC /tmp/build/perf/pmu-events/pmu-events.o
LD /tmp/build/perf/plugins/plugin_kvm-in.o
CC /tmp/build/perf/plugins/plugin_function.o
LD /tmp/build/perf/plugins/plugin_mac80211-in.o
CC /tmp/build/perf/plugins/plugin_futex.o
LD /tmp/build/perf/plugins/plugin_sched_switch-in.o
CC /tmp/build/perf/plugins/plugin_xen.o
LD /tmp/build/perf/plugins/plugin_function-in.o
CC /tmp/build/perf/plugins/plugin_scsi.o
LD /tmp/build/perf/plugins/plugin_futex-in.o
CC /tmp/build/perf/plugins/plugin_cfg80211.o
LD /tmp/build/perf/plugins/plugin_xen-in.o
CC /tmp/build/perf/plugins/plugin_tlb.o
LD /tmp/build/perf/plugins/plugin_scsi-in.o
LD /tmp/build/perf/plugins/plugin_cfg80211-in.o
LINK /tmp/build/perf/plugins/plugin_jbd2.so
LINK /tmp/build/perf/plugins/plugin_hrtimer.so
LINK /tmp/build/perf/plugins/plugin_kmem.so
LINK /tmp/build/perf/plugins/plugin_kvm.so
LINK /tmp/build/perf/plugins/plugin_mac80211.so
LD /tmp/build/perf/plugins/plugin_tlb-in.o
LINK /tmp/build/perf/plugins/plugin_function.so
LINK /tmp/build/perf/plugins/plugin_sched_switch.so
LINK /tmp/build/perf/plugins/plugin_futex.so
LINK /tmp/build/perf/plugins/plugin_xen.so
LINK /tmp/build/perf/plugins/plugin_scsi.so
LINK /tmp/build/perf/plugins/plugin_cfg80211.so
LINK /tmp/build/perf/plugins/plugin_tlb.so
INSTALL trace_plugins
LD /tmp/build/perf/pmu-events/pmu-events-in.o
Auto-detecting system features:
... libbfd: [ on ]
... disassembler-four-args: [ on ]
... zlib: [ on ]
... libcap: [ on ]
... clang-bpf-co-re: [ on ]
MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/
MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/main.o
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/common.o
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/json_writer.o
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/gen.o
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/btf.o
GEN
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/bpf_helper_defs.h
MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf.o
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/bpf.o
MKDIR /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/nlattr.o
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/btf.o
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf_errno.o
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/str_error.o
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/netlink.o
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/bpf_prog_linfo.o
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf_probes.o
CC /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/xsk.o
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/hashmap.o
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/btf_dump.o
CC
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/ringbuf.o
LD /tmp/build/perf/staticobjs/libbpf-in.o
LINK /tmp/build/perf/libbpf.a
CLANG /tmp/build/perf/util/bpf_skel/.tmp/bpf_prog_profiler.bpf.o
CLANG /tmp/build/perf/util/bpf_skel/.tmp/bperf_leader.bpf.o
CLANG /tmp/build/perf/util/bpf_skel/.tmp/bperf_follower.bpf.o
LD
/tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/staticobjs/libbpf-in.o
LINK /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/libbpf/libbpf.a
LINK /tmp/build/perf/util/bpf_skel/.tmp//bootstrap/bpftool
GEN-SKEL /tmp/build/perf/util/bpf_skel/bpf_prog_profiler.skel.h
GEN-SKEL /tmp/build/perf/util/bpf_skel/bperf_leader.skel.h
GEN-SKEL /tmp/build/perf/util/bpf_skel/bperf_follower.skel.h
libbpf: map 'prev_readings': unexpected def kind var.
Error: failed to open BPF object file: Invalid argument
libbpf: map 'diff_readings': unexpected def kind var.
Error: failed to open BPF object file: Invalid argument
make[2]: *** [Makefile.perf:1029:
/tmp/build/perf/util/bpf_skel/bperf_leader.skel.h] Error 255
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [Makefile.perf:1029:
/tmp/build/perf/util/bpf_skel/bperf_follower.skel.h] Error 255
make[1]: *** [Makefile.perf:236: sub-make] Error 2
make: *** [Makefile:110: install-bin] Error 2
make: Leaving directory '/home/acme/git/perf/tools/perf'
[acme@quaco perf]$ clang -v
clang version 11.0.0 (https://github.com/llvm/llvm-project
67420f1b0e9c673ee638f2680fa83f468019004f)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/10
Selected GCC installation: /usr/lib/gcc/x86_64-redhat-linux/10
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Selected multilib: .;@m64
[acme@quaco perf]$
