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Message-ID: <20191030153340.GE27327@kernel.org>
Date: Wed, 30 Oct 2019 12:33:40 -0300
From: Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To: Daniel Borkmann <borkmann@...earbox.net>
Cc: Jesper Dangaard Brouer <brouer@...hat.com>,
Björn Töpel <bjorn.topel@...il.com>,
Alexei Starovoitov <ast@...nel.org>,
BPF-dev-list <bpf@...r.kernel.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
Eric Sage <eric@...e.org>,
Andrii Nakryiko <andrii.nakryiko@...il.com>,
Arnaldo Carvalho de Melo <acme@...hat.com>,
Björn Töpel <bjorn.topel@...el.com>,
Jiri Olsa <jolsa@...hat.com>,
Toke Høiland-Jørgensen <toke@...hat.com>,
Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
Ilias Apalodimas <ilias.apalodimas@...aro.org>
Subject: Re: Compile build issues with samples/bpf/ again
Em Wed, Oct 30, 2019 at 04:07:32PM +0100, Daniel Borkmann escreveu:
> On 10/30/19 12:05 PM, Jesper Dangaard Brouer wrote:
> > On Wed, 30 Oct 2019 11:53:21 +0100
> > Björn Töpel <bjorn.topel@...il.com> wrote:
> > > On Wed, 30 Oct 2019 at 11:43, Jesper Dangaard Brouer <brouer@...hat.com> wrote:
> [...]
> > > > It is annoy to experience that simply building kernel tree samples/bpf/
> > > > is broken as often as it is. Right now, build is broken in both DaveM
> > > > net.git and bpf.git. ACME have some build fixes queued from Björn
> > > > Töpel. But even with those fixes, build (for samples/bpf/task_fd_query_user.c)
> > > > are still broken, as reported by Eric Sage (15 Oct), which I have a fix for.
> > >
> > > Hmm, something else than commit e55190f26f92 ("samples/bpf: Fix build
> > > for task_fd_query_user.c")?
> >
> > I see, you already fixed this... and it is in the bpf.git tree.
> >
> > Then we only need your other fixes from ACME's tree. I just cloned a
> > fresh version of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
> > to check that 'make M=samples/bpf' still fails.
>
> Correct, the two fixes from Bjorn which made the test_attr__* optional were
> taken by Arnaldo given the main change was under tools/perf/perf-sys.h. If
> you cherry pick these ...
>
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=06f84d1989b7e58d56fa2e448664585749d41221
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=fce9501aec6bdda45ef3a5e365a5e0de7de7fe2d
>
> ... into bpf tree, then all builds fine. When Arnaldo took them, my assumption
> was that these fixes would have been routed by him to Linus' tree, and upon
> resync we pull them automatically into bpf tree again.
>
> Look like didn't happen yet at this point, Arnaldo?
Yes, it will go to Linus, I was just unsure when was that it should go,
i.e. next or in the current window, so I've queued it up to next.
[acme@...co perf]$ git tag --contains 06f84d1989b7e58d56fa2e448664585749d41221
perf-core-for-mingo-5.5-20191011
perf-core-for-mingo-5.5-20191021
[acme@...co perf]$
So its in tip, but queued for 5.5, while I think you guys expect this to
fast track into 5.4, right? If so, please get that queued up or tell me
if you prefer for me to do it.
I agree with Jesper that when one changes something in common code, then
one does have to test all tools/ that may use that common code, but in
this specific case the breakage happened because tools/perf/ code was
used outside tools/perf/ which I completely didn't expect to happen,
whatever that is in tools/perf/perf-sys.h better go to tools/include or
tools/arch or some other common area, agreed?
- Arnaldo
> Build after cherry-pick:
>
> root@...1:~/bpf# make -j8 M=samples/bpf/ clean
> CLEAN samples/bpf/
> CLEAN samples/bpf//Module.symvers
> root@...1:~/bpf# make -j8 M=samples/bpf/
> AR samples/bpf//built-in.a
> make -C /root/bpf/samples/bpf/../../tools/lib/bpf/ RM='rm -rf' LDFLAGS= srctree=/root/bpf/samples/bpf/../../ O=
> HOSTCC samples/bpf//bpf_load.o
> HOSTCC samples/bpf//xdp1_user.o
> HOSTCC samples/bpf//cookie_uid_helper_example.o
> HOSTCC samples/bpf//test_lru_dist
> HOSTCC samples/bpf//sock_example
> HOSTCC samples/bpf//fds_example.o
> HOSTCC samples/bpf//sockex1_user.o
> HOSTCC samples/bpf//sockex2_user.o
> HOSTCC samples/bpf//sockex3_user.o
> HOSTCC samples/bpf//tracex1_user.o
> HOSTCC samples/bpf//tracex2_user.o
> HOSTCC samples/bpf//tracex3_user.o
> HOSTCC samples/bpf//tracex4_user.o
> HOSTCC samples/bpf//tracex5_user.o
> HOSTCC samples/bpf//tracex6_user.o
> HOSTCC samples/bpf//tracex7_user.o
> HOSTCC samples/bpf//test_probe_write_user_user.o
> HOSTCC samples/bpf//trace_output_user.o
> HOSTCC samples/bpf//lathist_user.o
> HOSTCC samples/bpf//offwaketime_user.o
> HOSTCC samples/bpf//spintest_user.o
> HOSTCC samples/bpf//map_perf_test_user.o
> HOSTCC samples/bpf//test_overhead_user.o
> HOSTCC samples/bpf//test_cgrp2_array_pin.o
> HOSTCC samples/bpf//test_cgrp2_attach.o
> HOSTCC samples/bpf//test_cgrp2_sock.o
> HOSTCC samples/bpf//test_cgrp2_sock2.o
> HOSTLD samples/bpf//xdp1
> HOSTLD samples/bpf//xdp2
> HOSTCC samples/bpf//xdp_router_ipv4_user.o
> HOSTCC samples/bpf//test_current_task_under_cgroup_user.o
> HOSTCC samples/bpf//trace_event_user.o
> HOSTCC samples/bpf//sampleip_user.o
> HOSTCC samples/bpf//tc_l2_redirect_user.o
> HOSTCC samples/bpf//lwt_len_hist_user.o
> HOSTCC samples/bpf//xdp_tx_iptunnel_user.o
> HOSTCC samples/bpf//test_map_in_map_user.o
> HOSTLD samples/bpf//per_socket_stats_example
> HOSTCC samples/bpf//xdp_redirect_user.o
> HOSTCC samples/bpf//xdp_redirect_map_user.o
> HOSTCC samples/bpf//xdp_redirect_cpu_user.o
> HOSTCC samples/bpf//xdp_monitor_user.o
> HOSTCC samples/bpf//xdp_rxq_info_user.o
> HOSTCC samples/bpf//syscall_tp_user.o
> HOSTCC samples/bpf//cpustat_user.o
> HOSTCC samples/bpf//xdp_adjust_tail_user.o
> HOSTCC samples/bpf//xdpsock_user.o
> HOSTCC samples/bpf//xdp_fwd_user.o
> HOSTCC samples/bpf//task_fd_query_user.o
> HOSTCC samples/bpf//xdp_sample_pkts_user.o
> HOSTCC samples/bpf//ibumad_user.o
> HOSTCC samples/bpf//hbm.o
> CLANG-bpf samples/bpf//sockex1_kern.o
> CLANG-bpf samples/bpf//sockex2_kern.o
> CLANG-bpf samples/bpf//sockex3_kern.o
> CLANG-bpf samples/bpf//tracex1_kern.o
> CLANG-bpf samples/bpf//tracex2_kern.o
> CLANG-bpf samples/bpf//tracex3_kern.o
> CLANG-bpf samples/bpf//tracex4_kern.o
> CC samples/bpf//syscall_nrs.s
> CLANG-bpf samples/bpf//tracex6_kern.o
> CLANG-bpf samples/bpf//tracex7_kern.o
> CLANG-bpf samples/bpf//sock_flags_kern.o
> CLANG-bpf samples/bpf//test_probe_write_user_kern.o
> CLANG-bpf samples/bpf//trace_output_kern.o
> CLANG-bpf samples/bpf//tcbpf1_kern.o
> CLANG-bpf samples/bpf//tc_l2_redirect_kern.o
> CLANG-bpf samples/bpf//lathist_kern.o
> CLANG-bpf samples/bpf//offwaketime_kern.o
> CLANG-bpf samples/bpf//spintest_kern.o
> CLANG-bpf samples/bpf//map_perf_test_kern.o
> CLANG-bpf samples/bpf//test_overhead_tp_kern.o
> CLANG-bpf samples/bpf//test_overhead_raw_tp_kern.o
> CLANG-bpf samples/bpf//test_overhead_kprobe_kern.o
> CLANG-bpf samples/bpf//parse_varlen.o
> CLANG-bpf samples/bpf//parse_simple.o
> CLANG-bpf samples/bpf//parse_ldabs.o
> CLANG-bpf samples/bpf//test_cgrp2_tc_kern.o
> CLANG-bpf samples/bpf//xdp1_kern.o
> CLANG-bpf samples/bpf//xdp2_kern.o
> CLANG-bpf samples/bpf//xdp_router_ipv4_kern.o
> CLANG-bpf samples/bpf//test_current_task_under_cgroup_kern.o
> CLANG-bpf samples/bpf//trace_event_kern.o
> CLANG-bpf samples/bpf//sampleip_kern.o
> CLANG-bpf samples/bpf//lwt_len_hist_kern.o
> CLANG-bpf samples/bpf//xdp_tx_iptunnel_kern.o
> CLANG-bpf samples/bpf//test_map_in_map_kern.o
> CLANG-bpf samples/bpf//tcp_synrto_kern.o
> CLANG-bpf samples/bpf//tcp_rwnd_kern.o
> CLANG-bpf samples/bpf//tcp_bufs_kern.o
> CLANG-bpf samples/bpf//tcp_cong_kern.o
> CLANG-bpf samples/bpf//tcp_iw_kern.o
> CLANG-bpf samples/bpf//tcp_clamp_kern.o
> CLANG-bpf samples/bpf//tcp_basertt_kern.o
> CLANG-bpf samples/bpf//tcp_tos_reflect_kern.o
> CLANG-bpf samples/bpf//tcp_dumpstats_kern.o
> CLANG-bpf samples/bpf//xdp_redirect_kern.o
> CLANG-bpf samples/bpf//xdp_redirect_map_kern.o
> CLANG-bpf samples/bpf//xdp_redirect_cpu_kern.o
> CLANG-bpf samples/bpf//xdp_monitor_kern.o
> CLANG-bpf samples/bpf//xdp_rxq_info_kern.o
> CLANG-bpf samples/bpf//xdp2skb_meta_kern.o
> CLANG-bpf samples/bpf//syscall_tp_kern.o
> CLANG-bpf samples/bpf//cpustat_kern.o
> CLANG-bpf samples/bpf//xdp_adjust_tail_kern.o
> CLANG-bpf samples/bpf//xdp_fwd_kern.o
> CLANG-bpf samples/bpf//task_fd_query_kern.o
> CLANG-bpf samples/bpf//xdp_sample_pkts_kern.o
> CLANG-bpf samples/bpf//ibumad_kern.o
> CLANG-bpf samples/bpf//hbm_out_kern.o
> CLANG-bpf samples/bpf//hbm_edt_kern.o
> HOSTLD samples/bpf//fds_example
> HOSTLD samples/bpf//sockex1
> HOSTLD samples/bpf//sockex2
> HOSTLD samples/bpf//sockex3
> HOSTLD samples/bpf//tracex1
> HOSTLD samples/bpf//tracex2
> HOSTLD samples/bpf//tracex3
> HOSTLD samples/bpf//tracex4
> HOSTLD samples/bpf//tracex5
> HOSTLD samples/bpf//tracex6
> HOSTLD samples/bpf//tracex7
> HOSTLD samples/bpf//test_probe_write_user
> HOSTLD samples/bpf//trace_output
> HOSTLD samples/bpf//lathist
> HOSTLD samples/bpf//offwaketime
> HOSTLD samples/bpf//spintest
> HOSTLD samples/bpf//map_perf_test
> HOSTLD samples/bpf//test_overhead
> HOSTLD samples/bpf//test_cgrp2_array_pin
> HOSTLD samples/bpf//test_cgrp2_attach
> HOSTLD samples/bpf//test_cgrp2_sock
> HOSTLD samples/bpf//test_cgrp2_sock2
> HOSTLD samples/bpf//xdp_router_ipv4
> HOSTLD samples/bpf//test_current_task_under_cgroup
> HOSTLD samples/bpf//trace_event
> HOSTLD samples/bpf//sampleip
> HOSTLD samples/bpf//tc_l2_redirect
> HOSTLD samples/bpf//lwt_len_hist
> HOSTLD samples/bpf//xdp_tx_iptunnel
> HOSTLD samples/bpf//test_map_in_map
> HOSTLD samples/bpf//xdp_redirect
> HOSTLD samples/bpf//xdp_redirect_map
> HOSTLD samples/bpf//xdp_redirect_cpu
> HOSTLD samples/bpf//xdp_monitor
> HOSTLD samples/bpf//xdp_rxq_info
> HOSTLD samples/bpf//syscall_tp
> HOSTLD samples/bpf//cpustat
> HOSTLD samples/bpf//xdp_adjust_tail
> HOSTLD samples/bpf//xdpsock
> HOSTLD samples/bpf//xdp_fwd
> HOSTLD samples/bpf//task_fd_query
> HOSTLD samples/bpf//xdp_sample_pkts
> HOSTLD samples/bpf//ibumad
> HOSTLD samples/bpf//hbm
> UPD samples/bpf//syscall_nrs.h
> CLANG-bpf samples/bpf//tracex5_kern.o
> Building modules, stage 2.
> MODPOST 0 modules
> root@...1:~/bpf#
--
- Arnaldo
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