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![]() Fixes: - Fix prev/next_prio formatting for deadline tasks in libtraceevent (Daniel Bristot de Oliveira) - Robustify reading of build-ids from /sys/kernel/note (Arnaldo Carvalho de Melo) - Fix building some sample/bpf in Alpine Linux 3.4 (Arnaldo Carvalho de Melo) - Fix 'make install-bin' to install libtraceevent plugins (Arnaldo Carvalho de Melo) - Fix 'perf record --switch-output' documentation and comment (Jiri Olsa) - 'perf probe' fixes for cross arch probing (Masami Hiramatsu) Improvement: - Show total scheduling time in 'perf sched timehist' (Namhyumg Kim) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJYbS6KAAoJENZQFvNTUqpAWqkP/1xdvbDqeTA2YjcWG+ffQJye LULSNQpRShvBGpB3zsOzOebOtw0R5oWb7YAp4JFZNyMIk5qcnS9gVwdw9Qx1lc/W Gq8OuhI28Pr9AHE37eTJ1+12HI2aAOylwKFqUpEWMzoaUqBDRh5JV2MeVGVQXBRe YBJ4Qwk1a7Ng74uzN/pdiC6V7pjddPEoLZEDG5p35vrgtNAY1JGlX5rvNR7CO6nN 72QHRnB4r1d9fgNGS5oO5zEU1q5+JN5phe+gDANdk/8pCqDegRjZpHnj5gcm71jr mEvbstmlV1XPZSA9aFVu2L5LZuv6asS02HjrbGydqO2DUTpDgrynHsjAuqqaTnwk kLGwA2I+Kyh8g155H+HrQANONe2TTOXRkBVWIoFBWkhd1JUS/p3GE2qvqx5N36sr U26d9i/Bk/pbOYOdRUFMc4lckZY2HrrRWj8dVr06qLr2rlbYoLv8hpqvdyHr9MJS Id2Yqqd1JVzBDU3/+GfdFDBjltVtpSG1mdc6LWy9IpXFMJoSOQNsrbjf+mgMadeV EbtY8MdDZ525EB8niv9E9Vfd56LiWTKCjg9Mc758+U+Ns50YlQFsDq2hBO2+jQ/k W3QNX+WJiLgxqQK8adveXoYgCSWPNVttIvg8Lj1KNk8Y//vUC1KSrvDfaKiROzLB iF0u5mLRAQ+Pfec6X5PP =o9KL -----END PGP SIGNATURE----- Merge tag 'perf-urgent-for-mingo-4.10-20170104' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes and one improvement from Arnaldo Carvalho de Melo: Fixes: - Fix prev/next_prio formatting for deadline tasks in libtraceevent (Daniel Bristot de Oliveira) - Robustify reading of build-ids from /sys/kernel/note (Arnaldo Carvalho de Melo) - Fix building some sample/bpf in Alpine Linux 3.4 (Arnaldo Carvalho de Melo) - Fix 'make install-bin' to install libtraceevent plugins (Arnaldo Carvalho de Melo) - Fix 'perf record --switch-output' documentation and comment (Jiri Olsa) - Fix 'perf probe' for cross arch probing (Masami Hiramatsu) Improvement: - Show total scheduling time in 'perf sched timehist' (Namhyumg Kim) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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.. | ||
bpf_helpers.h | ||
bpf_load.c | ||
bpf_load.h | ||
cgroup_helpers.c | ||
cgroup_helpers.h | ||
fds_example.c | ||
lathist_kern.c | ||
lathist_user.c | ||
libbpf.h | ||
lwt_len_hist.sh | ||
lwt_len_hist_kern.c | ||
lwt_len_hist_user.c | ||
Makefile | ||
map_perf_test_kern.c | ||
map_perf_test_user.c | ||
offwaketime_kern.c | ||
offwaketime_user.c | ||
parse_ldabs.c | ||
parse_simple.c | ||
parse_varlen.c | ||
README.rst | ||
sampleip_kern.c | ||
sampleip_user.c | ||
sock_example.c | ||
sock_example.h | ||
sock_flags_kern.c | ||
sockex1_kern.c | ||
sockex1_user.c | ||
sockex2_kern.c | ||
sockex2_user.c | ||
sockex3_kern.c | ||
sockex3_user.c | ||
spintest_kern.c | ||
spintest_user.c | ||
tc_l2_redirect.sh | ||
tc_l2_redirect_kern.c | ||
tc_l2_redirect_user.c | ||
tcbpf1_kern.c | ||
tcbpf2_kern.c | ||
test_cgrp2_array_pin.c | ||
test_cgrp2_attach.c | ||
test_cgrp2_attach2.c | ||
test_cgrp2_sock.c | ||
test_cgrp2_sock.sh | ||
test_cgrp2_sock2.c | ||
test_cgrp2_sock2.sh | ||
test_cgrp2_tc.sh | ||
test_cgrp2_tc_kern.c | ||
test_cls_bpf.sh | ||
test_current_task_under_cgroup_kern.c | ||
test_current_task_under_cgroup_user.c | ||
test_ipip.sh | ||
test_lru_dist.c | ||
test_lwt_bpf.c | ||
test_lwt_bpf.sh | ||
test_overhead_kprobe_kern.c | ||
test_overhead_tp_kern.c | ||
test_overhead_user.c | ||
test_probe_write_user_kern.c | ||
test_probe_write_user_user.c | ||
test_tunnel_bpf.sh | ||
trace_event_kern.c | ||
trace_event_user.c | ||
trace_output_kern.c | ||
trace_output_user.c | ||
tracex1_kern.c | ||
tracex1_user.c | ||
tracex2_kern.c | ||
tracex2_user.c | ||
tracex3_kern.c | ||
tracex3_user.c | ||
tracex4_kern.c | ||
tracex4_user.c | ||
tracex5_kern.c | ||
tracex5_user.c | ||
tracex6_kern.c | ||
tracex6_user.c | ||
xdp1_kern.c | ||
xdp1_user.c | ||
xdp2_kern.c | ||
xdp_tx_iptunnel_common.h | ||
xdp_tx_iptunnel_kern.c | ||
xdp_tx_iptunnel_user.c |
eBPF sample programs ==================== This directory contains a test stubs, verifier test-suite and examples for using eBPF. The examples use libbpf from tools/lib/bpf. Build dependencies ================== Compiling requires having installed: * clang >= version 3.4.0 * llvm >= version 3.7.1 Note that LLVM's tool 'llc' must support target 'bpf', list version and supported targets with command: ``llc --version`` Kernel headers -------------- There are usually dependencies to header files of the current kernel. To avoid installing devel kernel headers system wide, as a normal user, simply call:: make headers_install This will creates a local "usr/include" directory in the git/build top level directory, that the make system automatically pickup first. Compiling ========= For building the BPF samples, issue the below command from the kernel top level directory:: make samples/bpf/ Do notice the "/" slash after the directory name. It is also possible to call make from this directory. This will just hide the the invocation of make as above with the appended "/". Manually compiling LLVM with 'bpf' support ------------------------------------------ Since version 3.7.0, LLVM adds a proper LLVM backend target for the BPF bytecode architecture. By default llvm will build all non-experimental backends including bpf. To generate a smaller llc binary one can use:: -DLLVM_TARGETS_TO_BUILD="BPF" Quick sniplet for manually compiling LLVM and clang (build dependencies are cmake and gcc-c++):: $ git clone http://llvm.org/git/llvm.git $ cd llvm/tools $ git clone --depth 1 http://llvm.org/git/clang.git $ cd ..; mkdir build; cd build $ cmake .. -DLLVM_TARGETS_TO_BUILD="BPF;X86" $ make -j $(getconf _NPROCESSORS_ONLN) It is also possible to point make to the newly compiled 'llc' or 'clang' command via redefining LLC or CLANG on the make command line:: make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang