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selftests/bpf: Add uprobe_multi usdt test code

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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>
Link: https://lore.kernel.org/r/20230809083440.3209381-25-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiri Olsa 2023-08-09 10:34:36 +02:00 committed by Alexei Starovoitov
parent 3706919ee0
commit 4cde2d8aa7
1 changed files with 25 additions and 1 deletions
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26
tools/testing/selftests/bpf/uprobe_multi.c
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@ -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)
@ -60,8 +82,10 @@ 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]);
fprintf(stderr, "usage: %s <bench|usdt>\n", argv[0]);
return -1;
}