The bpf.h file needed gets installed in /usr/lib/include/perf/bpf/bpf.h,
and /usr/lib/include/perf/ is added to the include path passed to clang
to build the eBPF bytecode, so just remove "bpf/", its directly in the
path passed already. This was working by accident, fix it.
I.e. now this is back working:
# cat /home/acme/git/perf/tools/perf/examples/bpf/hello.c
#include <stdio.h>
int syscall_enter(openat)(void *args)
{
puts("Hello, world\n");
return 0;
}
license(GPL);
# perf trace -e /home/acme/git/perf/tools/perf/examples/bpf/hello.c
0.000 pickup/21493 __bpf_stdout__(Hello, world)
56.462 sh/13539 __bpf_stdout__(Hello, world)
56.536 sh/13539 __bpf_stdout__(Hello, world)
56.673 sh/13539 __bpf_stdout__(Hello, world)
56.781 sh/13539 __bpf_stdout__(Hello, world)
56.707 perf/13182 __bpf_stdout__(Hello, world)
56.849 perf/13182 __bpf_stdout__(Hello, world)
^C
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-d9myswhgo8gfi3vmehdqpxa7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
#ifndef _PERF_BPF_PID_FILTER_
#define _PERF_BPF_PID_FILTER_
-#include <bpf/bpf.h>
+#include <bpf.h>
#define pid_filter(name) pid_map(name, bool)
// SPDX-License-Identifier: GPL-2.0
-#include <bpf/bpf.h>
+#include <bpf.h>
struct bpf_map SEC("maps") __bpf_stdout__ = {
.type = BPF_MAP_TYPE_PERF_EVENT_ARRAY,
// SPDX-License-Identifier: LGPL-2.1
-#include <bpf/bpf.h>
+#include <bpf.h>
static int (*bpf_get_current_pid_tgid)(void) = (void *)BPF_FUNC_get_current_pid_tgid;