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fa633a0f89
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
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| .. | ||
| gnu | ||
| include/uapi/linux | ||
| map_tests | ||
| prog_tests | ||
| progs | ||
| verifier | ||
| .gitignore | ||
| bpf_legacy.h | ||
| bpf_rand.h | ||
| bpf_rlimit.h | ||
| bpf_trace_helpers.h | ||
| bpf_util.h | ||
| cgroup_helpers.c | ||
| cgroup_helpers.h | ||
| config | ||
| flow_dissector_load.c | ||
| flow_dissector_load.h | ||
| get_cgroup_id_user.c | ||
| Makefile | ||
| netcnt_common.h | ||
| tcp_client.py | ||
| tcp_server.py | ||
| test_align.c | ||
| test_bpftool_build.sh | ||
| test_btf.c | ||
| test_btf.h | ||
| test_cgroup_attach.c | ||
| test_cgroup_storage.c | ||
| test_cpp.cpp | ||
| test_dev_cgroup.c | ||
| test_flow_dissector.c | ||
| test_flow_dissector.sh | ||
| test_ftrace.sh | ||
| test_hashmap.c | ||
| test_iptunnel_common.h | ||
| test_kmod.sh | ||
| test_lirc_mode2_user.c | ||
| test_lirc_mode2.sh | ||
| test_lpm_map.c | ||
| test_lru_map.c | ||
| test_lwt_ip_encap.sh | ||
| test_lwt_seg6local.sh | ||
| test_maps.c | ||
| test_maps.h | ||
| test_netcnt.c | ||
| test_offload.py | ||
| test_progs.c | ||
| test_progs.h | ||
| test_select_reuseport_common.h | ||
| test_select_reuseport.c | ||
| test_skb_cgroup_id_user.c | ||
| test_skb_cgroup_id.sh | ||
| test_sock_addr.c | ||
| test_sock_addr.sh | ||
| test_sock_fields.c | ||
| test_sock.c | ||
| test_socket_cookie.c | ||
| test_sockmap_kern.h | ||
| test_sockmap.c | ||
| test_stub.c | ||
| test_sysctl.c | ||
| test_tag.c | ||
| test_tc_edt.sh | ||
| test_tc_tunnel.sh | ||
| test_tcp_check_syncookie_user.c | ||
| test_tcp_check_syncookie.sh | ||
| test_tcpbpf_user.c | ||
| test_tcpbpf.h | ||
| test_tcpnotify_user.c | ||
| test_tcpnotify.h | ||
| test_tunnel.sh | ||
| test_verifier_log.c | ||
| test_verifier.c | ||
| test_xdp_meta.sh | ||
| test_xdp_redirect.sh | ||
| test_xdp_veth.sh | ||
| test_xdp_vlan_mode_generic.sh | ||
| test_xdp_vlan_mode_native.sh | ||
| test_xdp_vlan.sh | ||
| test_xdping.sh | ||
| trace_helpers.c | ||
| trace_helpers.h | ||
| urandom_read.c | ||
| with_addr.sh | ||
| with_tunnels.sh | ||
| xdping.c | ||
| xdping.h | ||