[PATCHv5 bpf-next 24/28] selftests/bpf: Add uprobe_multi usdt test code

Jiri Olsa
2023-07-30T13:46:29Z

Adding code in uprobe_multi test binary that defines 50k usdts
and will serve as attach point for uprobe_multi usdt bench test
in following patch.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/testing/selftests/bpf/uprobe_multi.c | 24 ++++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git a/tools/testing/selftests/bpf/uprobe_multi.c b/tools/testing/selftests/bpf/uprobe_multi.c
index d19184103fa3..850bf2d5a8bc 100644
--- a/tools/testing/selftests/bpf/uprobe_multi.c
+++ b/tools/testing/selftests/bpf/uprobe_multi.c
@@ -2,6 +2,7 @@

#include <stdio.h>
#include <string.h>
+#include <sdt.h>

#define __PASTE(a, b) a##b
#define PASTE(a, b) __PASTE(a, b)
@@ -53,6 +54,27 @@ static int bench(void)
return 0;
}

+#define PROBE STAP_PROBE(test, usdt);
+
+#define PROBE10 PROBE PROBE PROBE PROBE PROBE \
+ PROBE PROBE PROBE PROBE PROBE
+#define PROBE100 PROBE10 PROBE10 PROBE10 PROBE10 PROBE10 \
+ PROBE10 PROBE10 PROBE10 PROBE10 PROBE10
+#define PROBE1000 PROBE100 PROBE100 PROBE100 PROBE100 PROBE100 \
+ PROBE100 PROBE100 PROBE100 PROBE100 PROBE100
+#define PROBE10000 PROBE1000 PROBE1000 PROBE1000 PROBE1000 PROBE1000 \
+ PROBE1000 PROBE1000 PROBE1000 PROBE1000 PROBE1000
+
+static int usdt(void)
+{
+ PROBE10000
+ PROBE10000
+ PROBE10000
+ PROBE10000
+ PROBE10000
+ return 0;
+}
+
int main(int argc, char **argv)
{
if (argc != 2)
@@ -60,6 +82,8 @@ int main(int argc, char **argv)

if (!strcmp("bench", argv[1]))
return bench();
+ if (!strcmp("usdt", argv[1]))
+ return usdt();

error:
fprintf(stderr, "usage: %s <bench>\n", argv[0]);
--
2.41.0