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[v1,5/7] perf trace: empty fix libbpf 1.0+ compatibility

Message ID 20221103045437.163510-6-irogers@google.com
State New
Headers
Series Fix perf trace libbpf 1.0+ compatibility |

Commit Message

Ian Rogers Nov. 3, 2022, 4:54 a.m. UTC 
  Avoid use of tools/perf/include/bpf/bpf.h and use the more regular BPF
headers.  Add raw_syscalls:sys_enter to avoid the evlist being empty.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/examples/bpf/empty.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)
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Patch

diff --git a/tools/perf/examples/bpf/empty.c b/tools/perf/examples/bpf/empty.c
index 7d7fb0c9fe76..3e296c0c53d7 100644
--- a/tools/perf/examples/bpf/empty.c
+++ b/tools/perf/examples/bpf/empty.c
@@ -1,3 +1,12 @@ 
-#include <bpf/bpf.h>
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
 
-license(GPL);
+struct syscall_enter_args;
+
+SEC("raw_syscalls:sys_enter")
+int sys_enter(struct syscall_enter_args *args)
+{
+	return 0;
+}
+char _license[] SEC("license") = "GPL";