diff options
| author | Joe Stringer <joe@ovn.org> | 2016-12-08 18:46:19 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-12-20 12:00:40 -0300 |
| commit | 205c8ada314f78e6637342089e5b585a051d6cf5 (patch) | |
| tree | d734220371122d5df702fd4a46fda7f820b89439 /samples/bpf/trace_output_user.c | |
| parent | 811b4f0d785d33eabfff5d0ea60596b6b8bdc825 (diff) | |
samples/bpf: Remove perf_event_open() declaration
This declaration was made in samples/bpf/libbpf.c for convenience, but
there's already one in tools/perf/perf-sys.h. Reuse that one.
Committer notes:
Testing it:
$ make -j4 O=../build/v4.9.0-rc8+ samples/bpf/
make[1]: Entering directory '/home/build/v4.9.0-rc8+'
CHK include/config/kernel.release
GEN ./Makefile
CHK include/generated/uapi/linux/version.h
Using /home/acme/git/linux as source for kernel
CHK include/generated/utsrelease.h
CHK include/generated/timeconst.h
CHK include/generated/bounds.h
CHK include/generated/asm-offsets.h
CALL /home/acme/git/linux/scripts/checksyscalls.sh
HOSTCC samples/bpf/test_verifier.o
HOSTCC samples/bpf/libbpf.o
HOSTCC samples/bpf/../../tools/lib/bpf/bpf.o
HOSTCC samples/bpf/test_maps.o
HOSTCC samples/bpf/sock_example.o
HOSTCC samples/bpf/bpf_load.o
<SNIP>
HOSTLD samples/bpf/trace_event
HOSTLD samples/bpf/sampleip
HOSTLD samples/bpf/tc_l2_redirect
make[1]: Leaving directory '/home/build/v4.9.0-rc8+'
$
Also tested the offwaketime resulting from the rebuild, seems to work as
before.
Signed-off-by: Joe Stringer <joe@ovn.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20161209024620.31660-7-joe@ovn.org
[ Use -I$(srctree)/tools/lib/ to support out of source code tree builds ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'samples/bpf/trace_output_user.c')
| -rw-r--r-- | samples/bpf/trace_output_user.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/samples/bpf/trace_output_user.c b/samples/bpf/trace_output_user.c index 1a1da7bddb93..f4fa6af22def 100644 --- a/samples/bpf/trace_output_user.c +++ b/samples/bpf/trace_output_user.c @@ -21,6 +21,7 @@ #include <signal.h> #include "libbpf.h" #include "bpf_load.h" +#include "perf-sys.h" static int pmu_fd; @@ -159,7 +160,7 @@ static void test_bpf_perf_event(void) }; int key = 0; - pmu_fd = perf_event_open(&attr, -1/*pid*/, 0/*cpu*/, -1/*group_fd*/, 0); + pmu_fd = sys_perf_event_open(&attr, -1/*pid*/, 0/*cpu*/, -1/*group_fd*/, 0); assert(pmu_fd >= 0); assert(bpf_map_update_elem(map_fd[0], &key, &pmu_fd, BPF_ANY) == 0); |