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selftests/bpf: Add uprobe_multi test program 

Adding uprobe_multi test program that defines 50k uprobe_multi_func_*
functions and will serve as attach point for uprobe_multi bench test
in following patch.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20230809083440.3209381-23-jolsa@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiri Olsa 2023-08-09 10:34:34 +02:00 committed by Alexei Starovoitov
parent a93d22ea60
commit 519dfeaf51
2 changed files with 72 additions and 0 deletions
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5
tools/testing/selftests/bpf/Makefile
View File

@ -585,6 +585,7 @@ TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko \
$(OUTPUT)/liburandom_read.so \
$(OUTPUT)/xdp_synproxy \
$(OUTPUT)/sign-file \
$(OUTPUT)/uprobe_multi \
ima_setup.sh \
verify_sig_setup.sh \
$(wildcard progs/btf_dump_test_case_*.c) \
@ -698,6 +699,10 @@ $(OUTPUT)/veristat: $(OUTPUT)/veristat.o
$(call msg,BINARY,,$@)
$(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
$(OUTPUT)/uprobe_multi: uprobe_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 \

67
tools/testing/selftests/bpf/uprobe_multi.c Normal file
View File

@ -0,0 +1,67 @@
// SPDX-License-Identifier: GPL-2.0
#include <stdio.h>
#include <string.h>
#define __PASTE(a, b) a##b
#define PASTE(a, b) __PASTE(a, b)
#define NAME(name, idx) PASTE(name, idx)
#define DEF(name, idx) int NAME(name, idx)(void) { return 0; }
#define CALL(name, idx) NAME(name, idx)();
#define F(body, name, idx) body(name, idx)
#define F10(body, name, idx) \
F(body, PASTE(name, idx), 0) F(body, PASTE(name, idx), 1) F(body, PASTE(name, idx), 2) \
F(body, PASTE(name, idx), 3) F(body, PASTE(name, idx), 4) F(body, PASTE(name, idx), 5) \
F(body, PASTE(name, idx), 6) F(body, PASTE(name, idx), 7) F(body, PASTE(name, idx), 8) \
F(body, PASTE(name, idx), 9)
#define F100(body, name, idx) \
F10(body, PASTE(name, idx), 0) F10(body, PASTE(name, idx), 1) F10(body, PASTE(name, idx), 2) \
F10(body, PASTE(name, idx), 3) F10(body, PASTE(name, idx), 4) F10(body, PASTE(name, idx), 5) \
F10(body, PASTE(name, idx), 6) F10(body, PASTE(name, idx), 7) F10(body, PASTE(name, idx), 8) \
F10(body, PASTE(name, idx), 9)
#define F1000(body, name, idx) \
F100(body, PASTE(name, idx), 0) F100(body, PASTE(name, idx), 1) F100(body, PASTE(name, idx), 2) \
F100(body, PASTE(name, idx), 3) F100(body, PASTE(name, idx), 4) F100(body, PASTE(name, idx), 5) \
F100(body, PASTE(name, idx), 6) F100(body, PASTE(name, idx), 7) F100(body, PASTE(name, idx), 8) \
F100(body, PASTE(name, idx), 9)
#define F10000(body, name, idx) \
F1000(body, PASTE(name, idx), 0) F1000(body, PASTE(name, idx), 1) F1000(body, PASTE(name, idx), 2) \
F1000(body, PASTE(name, idx), 3) F1000(body, PASTE(name, idx), 4) F1000(body, PASTE(name, idx), 5) \
F1000(body, PASTE(name, idx), 6) F1000(body, PASTE(name, idx), 7) F1000(body, PASTE(name, idx), 8) \
F1000(body, PASTE(name, idx), 9)
F10000(DEF, uprobe_multi_func_, 0)
F10000(DEF, uprobe_multi_func_, 1)
F10000(DEF, uprobe_multi_func_, 2)
F10000(DEF, uprobe_multi_func_, 3)
F10000(DEF, uprobe_multi_func_, 4)
static int bench(void)
{
F10000(CALL, uprobe_multi_func_, 0)
F10000(CALL, uprobe_multi_func_, 1)
F10000(CALL, uprobe_multi_func_, 2)
F10000(CALL, uprobe_multi_func_, 3)
F10000(CALL, uprobe_multi_func_, 4)
return 0;
}
int main(int argc, char **argv)
{
if (argc != 2)
goto error;
if (!strcmp("bench", argv[1]))
return bench();
error:
fprintf(stderr, "usage: %s <bench>\n", argv[0]);
return -1;
}