Message-ID: <20160126165945.GC3493@redhat.com>
Date:	Tue, 26 Jan 2016 14:59:45 -0200
From:	Arnaldo Carvalho de Melo <acme@...hat.com>
To:	Wang Nan <wangnan0@...wei.com>
Cc:	Alexei Starovoitov <ast@...nel.org>,
	Brendan Gregg <brendan.d.gregg@...il.com>,
	Daniel Borkmann <daniel@...earbox.net>,
	"David S. Miller" <davem@...emloft.net>,
	He Kuang <hekuang@...wei.com>, Jiri Olsa <jolsa@...nel.org>,
	Li Zefan <lizefan@...wei.com>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>, pi3orama@....com,
	Will Deacon <will.deacon@....com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 05/54] perf build: Use feature dump file for build-test

Em Mon, Jan 25, 2016 at 09:55:52AM +0000, Wang Nan escreveu:
> To prevent feature check run too many times, this patch utilizes
> previous introduced feature-dump make target and FEATURES_DUMP
> variable, makes sure the feature checkers run only once when doing
> build-test for normal test cases.
> 
> Signed-off-by: Wang Nan <wangnan0@...wei.com>
> Cc: Jiri Olsa <jolsa@...nel.org>
> Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
> Cc: Namhyung Kim <namhyung@...nel.org>

So, I'm having this problem when this patch is applied.

[acme@...et linux]$ make -C tools clean
make: Entering directory '/home/acme/git/linux/tools'
  DESCEND  power/acpi
make[1]: Entering directory '/home/acme/git/linux/tools/power/acpi'
  DESCEND  tools/acpidbg
make[2]: Entering directory '/home/acme/git/linux/tools/power/acpi/tools/acpidbg'
find ./ \( -not -type d \) \
-and \( -name '*~' -o -name '*.[oas]' \) \
-type f -print \
 | xargs rm -f
rm -f ./acpidbg
make[2]: Leaving directory '/home/acme/git/linux/tools/power/acpi/tools/acpidbg'
  DESCEND  tools/acpidump
make[2]: Entering directory '/home/acme/git/linux/tools/power/acpi/tools/acpidump'
find ./ \( -not -type d \) \
-and \( -name '*~' -o -name '*.[oas]' \) \
-type f -print \
 | xargs rm -f
rm -f ./acpidump
make[2]: Leaving directory '/home/acme/git/linux/tools/power/acpi/tools/acpidump'
  DESCEND  tools/ec
make[2]: Entering directory '/home/acme/git/linux/tools/power/acpi/tools/ec'
find ./ \( -not -type d \) \
-and \( -name '*~' -o -name '*.[oas]' \) \
-type f -print \
 | xargs rm -f
rm -f ./ec
make[2]: Leaving directory '/home/acme/git/linux/tools/power/acpi/tools/ec'
make[1]: Leaving directory '/home/acme/git/linux/tools/power/acpi'
  DESCEND  cgroup
make[1]: Entering directory '/home/acme/git/linux/tools/cgroup'
rm -f cgroup_event_listener
make[1]: Leaving directory '/home/acme/git/linux/tools/cgroup'
  DESCEND  power/cpupower
make[1]: Entering directory '/home/acme/git/linux/tools/power/cpupower'
find ./ \( -not -type d \) -and \( -name '*~' -o -name '*.[oas]' \) -type f -print \
 | xargs rm -f
rm -f ./cpupower
rm -f ./libcpupower.so*
rm -rf ./po/*.gmo
rm -rf ./po/*.pot
make -C bench O=./ clean
make[2]: Entering directory '/home/acme/git/linux/tools/power/cpupower/bench'
rm -f .//*.o
rm -f .//cpufreq-bench
make[2]: Leaving directory '/home/acme/git/linux/tools/power/cpupower/bench'
make[1]: Leaving directory '/home/acme/git/linux/tools/power/cpupower'
  DESCEND  hv
make[1]: Entering directory '/home/acme/git/linux/tools/hv'
rm -f hv_kvp_daemon hv_vss_daemon hv_fcopy_daemon
make[1]: Leaving directory '/home/acme/git/linux/tools/hv'
  DESCEND  firewire
make[1]: Entering directory '/home/acme/git/linux/tools/firewire'
rm -rf *.o nosy-dump
make[1]: Leaving directory '/home/acme/git/linux/tools/firewire'
  DESCEND  lguest
make[1]: Entering directory '/home/acme/git/linux/tools/lguest'
rm -f lguest
rm -rf include
make[1]: Leaving directory '/home/acme/git/linux/tools/lguest'
  DESCEND  perf
make[1]: Entering directory '/home/acme/git/linux/tools/perf'
  CLEAN    libtraceevent
  CLEAN    libapi
  CLEAN    libsubcmd
  CLEAN    libbpf
  CLEAN    libsubcmd
  CLEAN    config
  CLEAN    core-objs
  CLEAN    core-progs
  CLEAN    core-gen
  SUBDIR   Documentation
  CLEAN    Documentation
  CLEAN    python
make[1]: Leaving directory '/home/acme/git/linux/tools/perf'
  DESCEND  testing/selftests
make[1]: Entering directory '/home/acme/git/linux/tools/testing/selftests'
for TARGET in breakpoints cpu-hotplug efivarfs exec firmware ftrace futex kcmp lib membarrier memfd memory-hotplug mount mqueue net powerpc pstore ptrace seccomp size static_keys sysctl timers user vm x86 zram; do \
	make -C $TARGET clean; \
done;
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/breakpoints'
rm -fr breakpoint_test
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/breakpoints'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/cpu-hotplug'
make[2]: Nothing to be done for 'clean'.
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/cpu-hotplug'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/efivarfs'
rm -f open-unlink create-read
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/efivarfs'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/exec'
rm -rf execveat execveat.symlink execveat.denatured script subdir subdir.moved execveat.moved xxxxx*
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/exec'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/firmware'
make[2]: Nothing to be done for 'clean'.
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/firmware'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/ftrace'
rm -rf logs/*
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/ftrace'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/futex'
for DIR in functional; do make -C $DIR clean ; done
make[3]: Entering directory '/home/acme/git/linux/tools/testing/selftests/futex/functional'
rm -f futex_wait_timeout futex_wait_wouldblock futex_requeue_pi futex_requeue_pi_signal_restart futex_requeue_pi_mismatched_ops futex_wait_uninitialized_heap futex_wait_private_mapped_file
make[3]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/futex/functional'
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/futex'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/kcmp'
rm -f kcmp_test kcmp-test-file
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/kcmp'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/lib'
make[2]: Nothing to be done for 'clean'.
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/lib'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/membarrier'
rm -f membarrier_test
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/membarrier'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/memfd'
rm -f memfd_test fuse_test
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/memfd'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/memory-hotplug'
make[2]: Nothing to be done for 'clean'.
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/memory-hotplug'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/mount'
rm -f unprivileged-remount-test
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/mount'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/mqueue'
rm -f mq_open_tests mq_perf_tests
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/mqueue'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/net'
rm -f socket psock_fanout psock_tpacket reuseport_bpf
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/net'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/powerpc'
rm -f tags
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/powerpc'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/pstore'
rm -rf logs/* *uuid
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/pstore'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/ptrace'
rm -f peeksiginfo
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/ptrace'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/seccomp'
rm -f seccomp_bpf
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/seccomp'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/size'
rm -f get_size
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/size'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/static_keys'
make[2]: Nothing to be done for 'clean'.
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/static_keys'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/sysctl'
make[2]: Nothing to be done for 'clean'.
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/sysctl'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/timers'
rm -f posix_timers nanosleep nsleep-lat set-timer-lat mqueue-lat inconsistency-check raw_skew threadtest rtctest alarmtimer-suspend valid-adjtimex adjtick change_skew skew_consistency clocksource-switch leap-a-day leapcrash set-tai set-2038
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/timers'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/user'
make[2]: Nothing to be done for 'clean'.
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/user'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/vm'
rm -f compaction_test hugepage-mmap hugepage-shm map_hugetlb mlock2-tests on-fault-limit thuge-gen transhuge-stress userfaultfd
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/vm'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/x86'
rm -f single_step_syscall_32 sysret_ss_attrs_32 syscall_nt_32 ptrace_syscall_32 entry_from_vm86_32 syscall_arg_fault_32 sigreturn_32 test_syscall_vdso_32 unwind_vdso_32 test_FCMOV_32 test_FCOMI_32 test_FISTTP_32 ldt_gdt_32 vdso_restorer_32 single_step_syscall_64 sysret_ss_attrs_64 syscall_nt_64 ptrace_syscall_64
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/x86'
make[2]: Entering directory '/home/acme/git/linux/tools/testing/selftests/zram'
rm -f err.log
make[2]: Leaving directory '/home/acme/git/linux/tools/testing/selftests/zram'
make[1]: Leaving directory '/home/acme/git/linux/tools/testing/selftests'
  DESCEND  power/x86/turbostat
make[1]: Entering directory '/home/acme/git/linux/tools/power/x86/turbostat'
make[1]: Leaving directory '/home/acme/git/linux/tools/power/x86/turbostat'
  DESCEND  spi
make[1]: Entering directory '/home/acme/git/linux/tools/spi'
rm -f spidev_test spidev_fdx
make[1]: Leaving directory '/home/acme/git/linux/tools/spi'
  DESCEND  usb
make[1]: Entering directory '/home/acme/git/linux/tools/usb'
rm -f testusb ffs-test
make[1]: Leaving directory '/home/acme/git/linux/tools/usb'
  DESCEND  virtio
make[1]: Entering directory '/home/acme/git/linux/tools/virtio'
rm -f *.o vringh_test virtio_test vhost_test/*.o vhost_test/.*.cmd \
              vhost_test/Module.symvers vhost_test/modules.order *.d
make[1]: Leaving directory '/home/acme/git/linux/tools/virtio'
  DESCEND  vm
make[1]: Entering directory '/home/acme/git/linux/tools/vm'
rm -f page-types slabinfo page_owner_sort
make -C ../lib/api clean
make[2]: Entering directory '/home/acme/git/linux/tools/lib/api'
  CLEAN    libapi
make[2]: Leaving directory '/home/acme/git/linux/tools/lib/api'
make[1]: Leaving directory '/home/acme/git/linux/tools/vm'
  DESCEND  net
make[1]: Entering directory '/home/acme/git/linux/tools/net'
rm -rf *.o bpf_jit_disasm bpf_dbg bpf_asm bpf_exp.yacc.* bpf_exp.lex.*
make[1]: Leaving directory '/home/acme/git/linux/tools/net'
  DESCEND  iio
make[1]: Entering directory '/home/acme/git/linux/tools/iio'
rm -f *.o iio_event_monitor lsiio generic_buffer
make[1]: Leaving directory '/home/acme/git/linux/tools/iio'
  DESCEND  power/x86/x86_energy_perf_policy
make[1]: Entering directory '/home/acme/git/linux/tools/power/x86/x86_energy_perf_policy'
rm -f x86_energy_perf_policy
make[1]: Leaving directory '/home/acme/git/linux/tools/power/x86/x86_energy_perf_policy'
  DESCEND  thermal/tmon
make[1]: Entering directory '/home/acme/git/linux/tools/thermal/tmon'
find . -name "*.o" | xargs rm -f
rm -f tmon
make[1]: Leaving directory '/home/acme/git/linux/tools/thermal/tmon'
  DESCEND  laptop/freefall
make[1]: Entering directory '/home/acme/git/linux/tools/laptop/freefall'
rm -f freefall
make[1]: Leaving directory '/home/acme/git/linux/tools/laptop/freefall'
  DESCEND  build
make[1]: Entering directory '/home/acme/git/linux/tools/build'
  CLEAN    fixdep
make[1]: Leaving directory '/home/acme/git/linux/tools/build'
  DESCEND  lib/bpf
make[1]: Entering directory '/home/acme/git/linux/tools/lib/bpf'
  CLEAN    libbpf
  CLEAN    core-gen
make[1]: Leaving directory '/home/acme/git/linux/tools/lib/bpf'
  DESCEND  lib/subcmd
make[1]: Entering directory '/home/acme/git/linux/tools/lib/subcmd'
  CLEAN    libsubcmd
make[1]: Leaving directory '/home/acme/git/linux/tools/lib/subcmd'
  DESCEND  lib/lockdep
make[1]: Entering directory '/home/acme/git/linux/tools/lib/lockdep'
git statusrm -f *.o *~ liblockdep.a liblockdep.so.4.4.0 *.a *liblockdep*.so*  .*.d .*.cmd
rm -f tags TAGS
make[1]: Leaving directory '/home/acme/git/linux/tools/lib/lockdep'
make: Leaving directory '/home/acme/git/linux/tools'
[acme@...et linux]$ git status
On branch perf/core
Untracked files:
  (use "git add <file>..." to include in what will be committed)

	perf.data
	perf.data.old
	tools/perf/BUILD_TEST_FEATURE_DUMP
	tools/perf/make_no_libbpf
	tools/perf/make_no_newt

nothing added to commit but untracked files present (use "git add" to track)
[acme@...et linux]$ rm -f tools/perf/BUILD_TEST_FEATURE_DUMP tools/perf/make_no_libbpf tools/perf/make_no_newt
[acme@...et linux]$ perf stat make -C tools/perf build-test
make: Entering directory '/home/acme/git/linux/tools/perf'
Testing Makefile
- /home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP: cd . && make FEATURE_DUMP_COPY=/home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP  feature-dump
cd . && make FEATURE_DUMP_COPY=/home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP feature-dump
- make_doc: cd . && make -f Makefile   DESTDIR=/tmp/tmp.lLyAWJ2KUJ doc FEATURES_DUMP=/home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP
- make_no_libperl: cd . && make -f Makefile   DESTDIR=/tmp/tmp.iPREXpyGhh NO_LIBPERL=1 FEATURES_DUMP=/home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP
cd . && make -f Makefile DESTDIR=/tmp/tmp.iPREXpyGhh NO_LIBPERL=1 FEATURES_DUMP=/home/acme/git/linux/tools/perf/BUILD_TEST_FEATURE_DUMP
  BUILD:   Doing 'make -j4' parallel build
  GEN      common-cmds.h
  CC       fixdep.o
  CC       perf-read-vdso32
In file included from /usr/include/features.h:389:0,
                 from /usr/include/stdio.h:27,
                 from perf-read-vdso.c:1:
/usr/include/gnu/stubs.h:7:27: fatal error: gnu/stubs-32.h: No such file or directory
compilation terminated.
Makefile.perf:416: recipe for target 'perf-read-vdso32' failed
make[4]: *** [perf-read-vdso32] Error 1
make[4]: *** Waiting for unfinished jobs....
  LD       fixdep-in.o
  LINK     fixdep
  PERF_VERSION = 4.4.g80fcfd7
Makefile:68: recipe for target 'all' failed
make[3]: *** [all] Error 2
  test: test -x ./perf
tests/make:274: recipe for target 'make_no_libperl' failed
make[2]: *** [make_no_libperl] Error 1
tests/make:7: recipe for target 'all' failed
make[1]: *** [all] Error 2
Makefile:81: recipe for target 'build-test' failed
make: *** [build-test] Error 2
make: Leaving directory '/home/acme/git/linux/tools/perf'

 Performance counter stats for 'make -C tools/perf build-test':

      61660.694764      task-clock (msec)         #    3.494 CPUs utilized          
            13,836      context-switches          #    0.224 K/sec                  
             3,707      cpu-migrations            #    0.060 K/sec                  
         1,151,896      page-faults               #    0.019 M/sec                  
   190,413,042,688      cycles                    #    3.088 GHz                    
   <not supported>      stalled-cycles-frontend  
   <not supported>      stalled-cycles-backend   
   206,130,087,553      instructions              #    1.08  insns per cycle        
    48,604,926,191      branches                  #  788.264 M/sec                  
       603,468,422      branch-misses             #    1.24% of all branches        

      17.647845909 seconds time elapsed

[acme@...et linux]$ 

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