On Fri, Jun 30, 2023 at 1:38 AM Jiri Olsa <jolsa@xxxxxxxxxx> wrote:
>
> Adding usdt_multi test program 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@xxxxxxxxxx>
> ---
> tools/testing/selftests/bpf/Makefile | 5 +++++
> tools/testing/selftests/bpf/usdt_multi.c | 24 ++++++++++++++++++++++++
> 2 files changed, 29 insertions(+)
> create mode 100644 tools/testing/selftests/bpf/usdt_multi.c
>
> diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
> index acf7c9a29082..9762467cf0ba 100644
> --- a/tools/testing/selftests/bpf/Makefile
> +++ b/tools/testing/selftests/bpf/Makefile
> @@ -568,6 +568,7 @@ TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \
> $(OUTPUT)/xdp_synproxy \
> $(OUTPUT)/sign-file \
> $(OUTPUT)/uprobe_multi \
> + $(OUTPUT)/usdt_multi \
that's a bit too much, if you can't put everything into urandom_read,
let's at least combine uprobe_multi and usdt_multi
> ima_setup.sh \
> verify_sig_setup.sh \
> $(wildcard progs/btf_dump_test_case_*.c) \
> @@ -675,6 +676,10 @@ $(OUTPUT)/uprobe_multi: uprobe_multi.c
> $(call msg,BINARY,,$@)
> $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
>
> +$(OUTPUT)/usdt_multi: usdt_multi.c
> + $(call msg,BINARY,,$@)
> + $(Q)$(CC) $(CFLAGS) $(LDFLAGS) $^ $(LDLIBS) -o $@
> +
> EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \
> prog_tests/tests.h map_tests/tests.h verifier/tests.h \
> feature bpftool \
> diff --git a/tools/testing/selftests/bpf/usdt_multi.c b/tools/testing/selftests/bpf/usdt_multi.c
> new file mode 100644
> index 000000000000..fedf856bad2b
> --- /dev/null
> +++ b/tools/testing/selftests/bpf/usdt_multi.c
> @@ -0,0 +1,24 @@
> +// SPDX-License-Identifier: GPL-2.0
> +
> +#include <sdt.h>
> +
> +#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
> +
> +int main(void)
> +{
> + PROBE10000
> + PROBE10000
> + PROBE10000
> + PROBE10000
> + PROBE10000
> + return 0;
> +}
> --
> 2.41.0
>
