Em Thu, Dec 15, 2016 at 03:29:18PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Thu, Dec 15, 2016 at 12:50:22PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Wed, Dec 14, 2016 at 02:43:39PM -0800, Joe Stringer escreveu: > > > Now that libbpf under tools/lib/bpf/* is synced with the version from > > > samples/bpf, we can get rid most of the libbpf library here. > > > > > > Signed-off-by: Joe Stringer <j...@ovn.org> > > > Cc: Alexei Starovoitov <a...@fb.com> > > > Cc: Daniel Borkmann <dan...@iogearbox.net> > > > Cc: Wang Nan <wangn...@huawei.com> > > > Link: http://lkml.kernel.org/r/20161209024620.31660-6-...@ovn.org > > > [ Use -I$(srctree)/tools/lib/ to support out of source code tree builds, > > > as noticed by Wang Nan ] > > So, the above comment no longer applied to this adjusted patch from you, > as you removed one hunk too much, that, after applied, gets samples/bpf/ > to build successfully: > > diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile > index add514e2984a..81b0ef2f7994 100644 > --- a/samples/bpf/Makefile > +++ b/samples/bpf/Makefile > @@ -107,6 +107,7 @@ always += lwt_len_hist_kern.o > always += xdp_tx_iptunnel_kern.o > > HOSTCFLAGS += -I$(objtree)/usr/include > +HOSTCFLAGS += -I$(srctree)/tools/lib/ > HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/ > > HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable > > --------------------- > > I added it, continuing...
But then, when I tried to run offwaketime with it, it fails: [root@jouet bpf]# ./offwaketime ls bpf_load_program() err=22 BPF_LDX uses reserved fields bpf_load_program() err=22 BPF_LDX uses reserved fields [root@jouet bpf]# If I remove this patch and try again, it works: [root@jouet bpf]# ./offwaketime | head -4 swapper/1;start_secondary;cpu_startup_entry;schedule_preempt_disabled;schedule;__schedule;-;---;; 46 chrome;return_from_SYSCALL_64;do_syscall_64;exit_to_usermode_loop;schedule;__schedule;-;try_to_wake_up;do_futex;sys_futex;do_syscall_64;return_from_SYSCALL_64;;Chrome_ChildIOT 1 firefox;entry_SYSCALL_64_fastpath;sys_poll;do_sys_poll;poll_schedule_timeout;schedule_hrtimeout_range;schedule_hrtimeout_range_clock;schedule;__schedule;-;try_to_wake_up;pollwake;__wake_up_common;__wake_up_sync_key;pipe_write;__vfs_write;vfs_write;sys_write;entry_SYSCALL_64_fastpath;;Timer 3 dockerd-current;entry_SYSCALL_64_fastpath;sys_select;core_sys_select;do_select;poll_schedule_timeout;schedule_hrtimeout_range;schedule_hrtimeout_range_clock;schedule;__schedule;-;try_to_wake_up;futex_wake;do_futex;sys_futex;entry_SYSCALL_64_fastpath;;dockerd-current 2 [root@jouet bpf]# So, I'm stopping here so that I can push what I have to Ingo, then I'll get back to this, hopefully by then you beat me and I have just to retest 8-) - Arnaldo
