linux/tools/testing/selftests/bpf
Namhyung Kim fa633a0f89 libbpf: Fix build on read-only filesystems
I got the following error when I tried to build perf on a read-only
filesystem with O=dir option.

  $ cd /some/where/ro/linux/tools/perf
  $ make O=$HOME/build/perf
  ...
    CC       /home/namhyung/build/perf/lib.o
  /bin/sh: bpf_helper_defs.h: Read-only file system
  make[3]: *** [Makefile:184: bpf_helper_defs.h] Error 1
  make[2]: *** [Makefile.perf:778: /home/namhyung/build/perf/libbpf.a] Error 2
  make[2]: *** Waiting for unfinished jobs....
    LD       /home/namhyung/build/perf/libperf-in.o
    AR       /home/namhyung/build/perf/libperf.a
    PERF_VERSION = 5.4.0
  make[1]: *** [Makefile.perf:225: sub-make] Error 2
  make: *** [Makefile:70: all] Error 2

It was becaused bpf_helper_defs.h was generated in current directory.
Move it to OUTPUT directory.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20191223061326.843366-1-namhyung@kernel.org
2019-12-23 15:34:06 +01:00
..
gnu
include/uapi/linux
map_tests selftests/bpf: add test_sysctl and map_tests/tests.h to .gitignore 2019-05-16 11:41:31 -07:00
prog_tests selftests/bpf: Add a fexit/bpf2bpf test with target bpf prog no callees 2019-12-04 21:34:42 -08:00
progs selftests/bpf: Add a fexit/bpf2bpf test with target bpf prog no callees 2019-12-04 21:34:42 -08:00
verifier bpf: Add further test_verifier cases for record_func_key 2019-12-19 13:39:22 -08:00
.gitignore libbpf: Fix build on read-only filesystems 2019-12-23 15:34:06 +01:00
bpf_legacy.h selftests/bpf: samples/bpf: Split off legacy stuff from bpf_helpers.h 2019-10-08 23:16:03 +02:00
bpf_rand.h
bpf_rlimit.h
bpf_trace_helpers.h bpf: Introduce BPF_TRACE_x helper for the tracing tests 2019-11-24 17:12:11 -08:00
bpf_util.h bpf: use libbpf_num_possible_cpus internally 2019-06-11 10:36:02 +02:00
cgroup_helpers.c selftests/bpf: Correct path to include msg + path 2019-10-03 17:21:57 +02:00
cgroup_helpers.h
config selftests/bpf: add config fragment BPF_JIT 2019-08-21 17:05:06 +02:00
flow_dissector_load.c selftests/bpf: run flow dissector tests in skb-less mode 2019-04-23 18:36:34 +02:00
flow_dissector_load.h selftests/bpf: properly return error from bpf_flow_load 2019-04-23 18:36:34 +02:00
get_cgroup_id_user.c
Makefile libbpf: Fix build on read-only filesystems 2019-12-23 15:34:06 +01:00
netcnt_common.h
tcp_client.py
tcp_server.py
test_align.c selftests/bpf: fix test_align liveliness expectations 2019-07-06 00:16:56 +02:00
test_bpftool_build.sh selftests, bpftool: Skip the build test if not in tree 2019-11-24 16:58:45 -08:00
test_btf.c selftests/bpf: add trickier size resolution tests 2019-07-15 23:02:17 +02:00
test_btf.h bpf: Refactor BTF encoding macro to test_btf.h 2019-04-27 09:07:05 -07:00
test_cgroup_attach.c selftests/bpf: add auto-detach test 2019-05-28 09:30:02 -07:00
test_cgroup_storage.c selftests/bpf: fix test_cgroup_storage on s390 2019-08-21 16:55:01 +02:00
test_cpp.cpp selftests/bpf: Bring back c++ include/link test 2019-12-04 17:57:55 -08:00
test_dev_cgroup.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
test_flow_dissector.c
test_flow_dissector.sh Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-10-20 10:43:00 -07:00
test_ftrace.sh selftests/bpf: Test function_graph tracer and bpf trampoline together 2019-12-11 15:19:29 -08:00
test_hashmap.c selftests/bpf: add tests for libbpf's hashmap 2019-05-24 14:05:57 -07:00
test_iptunnel_common.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
test_kmod.sh
test_lirc_mode2_user.c
test_lirc_mode2.sh
test_lpm_map.c bpf: lpm_trie: check left child of last leftmost node for NULL 2019-06-11 13:52:37 +02:00
test_lru_map.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206 2019-05-30 11:29:53 -07:00
test_lwt_ip_encap.sh selftests/bpf: More compatible nc options in test_lwt_ip_encap 2019-10-08 23:59:22 +02:00
test_lwt_seg6local.sh
test_maps.c selftest/bpf: Get rid of a bunch of explicit BPF program type setting 2019-10-21 14:49:12 +02:00
test_maps.h bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps 2019-04-27 09:07:05 -07:00
test_netcnt.c
test_offload.py selftests: bpf: log direct file writes 2019-11-06 09:59:58 -08:00
test_progs.c selftests/bpf: Integrate verbose verifier log into test_progs 2019-11-24 16:58:45 -08:00
test_progs.h selftests/bpf: Integrate verbose verifier log into test_progs 2019-11-24 16:58:45 -08:00
test_select_reuseport_common.h
test_select_reuseport.c bpf: Add test for SO_REUSEPORT_DETACH_BPF 2019-06-15 01:21:50 +02:00
test_skb_cgroup_id_user.c selftests/bpf: Don't hard-code root cgroup id 2019-12-04 17:56:22 -08:00
test_skb_cgroup_id.sh
test_sock_addr.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-06-17 20:20:36 -07:00
test_sock_addr.sh
test_sock_fields.c selftests: bpf: enable hi32 randomization for all tests 2019-05-24 18:58:37 -07:00
test_sock.c selftests/bpf: fix "bind{4, 6} deny specific IP & port" on s390 2019-08-14 22:51:35 +02:00
test_socket_cookie.c selftests/bpf: convert socket_cookie test to sk storage 2019-06-15 01:21:59 +02:00
test_sockmap_kern.h selftests/bpf: convert legacy BPF maps to BTF-defined ones 2019-07-05 22:52:25 +02:00
test_sockmap.c selftests: bpf: correct perror strings 2019-11-28 22:40:30 -08:00
test_stub.c selftests/bpf: Integrate verbose verifier log into test_progs 2019-11-24 16:58:45 -08:00
test_sysctl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-11-09 11:04:37 -08:00
test_tag.c
test_tc_edt.sh selftests/bpf: More compatible nc options in test_tc_edt 2019-10-18 22:33:57 +02:00
test_tc_tunnel.sh selftests, bpf: Fix test_tc_tunnel hanging 2019-11-18 21:31:49 +01:00
test_tcp_check_syncookie_user.c selftests/bpf: add test for bpf_tcp_gen_syncookie 2019-07-30 21:03:05 -07:00
test_tcp_check_syncookie.sh selftests/bpf: add test for bpf_tcp_gen_syncookie 2019-07-30 21:03:05 -07:00
test_tcpbpf_user.c selftests/bpf: De-flake test_tcpbpf 2019-12-04 18:01:05 -08:00
test_tcpbpf.h selftests/bpf: De-flake test_tcpbpf 2019-12-04 18:01:05 -08:00
test_tcpnotify_user.c selftests/bpf: switch test_tcpnotify to perf_buffer API 2019-07-23 16:05:42 -07:00
test_tcpnotify.h
test_tunnel.sh selftests/bpf: fail test_tunnel.sh if subtests fail 2019-05-28 11:08:57 +02:00
test_verifier_log.c
test_verifier.c bpf: Add further test_verifier cases for record_func_key 2019-12-19 13:39:22 -08:00
test_xdp_meta.sh
test_xdp_redirect.sh
test_xdp_veth.sh selftests, bpf: Add test for veth native XDP 2019-06-24 18:18:30 -07:00
test_xdp_vlan_mode_generic.sh selftests/bpf: add wrapper scripts for test_xdp_vlan.sh 2019-08-05 11:17:40 -07:00
test_xdp_vlan_mode_native.sh selftests/bpf: add wrapper scripts for test_xdp_vlan.sh 2019-08-05 11:17:40 -07:00
test_xdp_vlan.sh selftests/bpf: reduce time to execute test_xdp_vlan.sh 2019-08-05 11:17:40 -07:00
test_xdping.sh selftests/bpf: measure RTT from xdp using xdping 2019-05-31 19:53:45 -07:00
trace_helpers.c selftests/bpf: remove perf buffer helpers 2019-07-23 16:05:42 -07:00
trace_helpers.h selftests/bpf: remove perf buffer helpers 2019-07-23 16:05:42 -07:00
urandom_read.c selftests: bpf: modify urandom_read and link it non-statically 2019-03-21 19:37:30 -07:00
with_addr.sh
with_tunnels.sh
xdping.c selftests: bpf: correct perror strings 2019-11-28 22:40:30 -08:00
xdping.h selftests/bpf: measure RTT from xdp using xdping 2019-05-31 19:53:45 -07:00