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Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/tailcalls.c')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/tailcalls.c83
1 files changed, 49 insertions, 34 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/tailcalls.c b/tools/testing/selftests/bpf/prog_tests/tailcalls.c
index b5940e6ca67c..9825f1f7bfcc 100644
--- a/tools/testing/selftests/bpf/prog_tests/tailcalls.c
+++ b/tools/testing/selftests/bpf/prog_tests/tailcalls.c
@@ -21,7 +21,7 @@ static void test_tailcall_1(void)
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -38,9 +38,9 @@ static void test_tailcall_1(void)
goto out;
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", i);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -70,9 +70,9 @@ static void test_tailcall_1(void)
err, errno, retval);
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", i);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -92,9 +92,9 @@ static void test_tailcall_1(void)
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
j = bpf_map__def(prog_array)->max_entries - 1 - i;
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", j);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", j);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -159,7 +159,7 @@ static void test_tailcall_2(void)
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -176,9 +176,9 @@ static void test_tailcall_2(void)
goto out;
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", i);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -219,10 +219,7 @@ out:
bpf_object__close(obj);
}
-/* test_tailcall_3 checks that the count value of the tail call limit
- * enforcement matches with expectations.
- */
-static void test_tailcall_3(void)
+static void test_tailcall_count(const char *which)
{
int err, map_fd, prog_fd, main_fd, data_fd, i, val;
struct bpf_map *prog_array, *data_map;
@@ -231,12 +228,12 @@ static void test_tailcall_3(void)
__u32 retval, duration;
char buff[128] = {};
- err = bpf_prog_load("tailcall3.o", BPF_PROG_TYPE_SCHED_CLS, &obj,
+ err = bpf_prog_load(which, BPF_PROG_TYPE_SCHED_CLS, &obj,
&prog_fd);
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -252,7 +249,7 @@ static void test_tailcall_3(void)
if (CHECK_FAIL(map_fd < 0))
goto out;
- prog = bpf_object__find_program_by_title(obj, "classifier/0");
+ prog = bpf_object__find_program_by_name(obj, "classifier_0");
if (CHECK_FAIL(!prog))
goto out;
@@ -296,6 +293,22 @@ out:
bpf_object__close(obj);
}
+/* test_tailcall_3 checks that the count value of the tail call limit
+ * enforcement matches with expectations. JIT uses direct jump.
+ */
+static void test_tailcall_3(void)
+{
+ test_tailcall_count("tailcall3.o");
+}
+
+/* test_tailcall_6 checks that the count value of the tail call limit
+ * enforcement matches with expectations. JIT uses indirect jump.
+ */
+static void test_tailcall_6(void)
+{
+ test_tailcall_count("tailcall6.o");
+}
+
/* test_tailcall_4 checks that the kernel properly selects indirect jump
* for the case where the key is not known. Latter is passed via global
* data to select different targets we can compare return value of.
@@ -316,7 +329,7 @@ static void test_tailcall_4(void)
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -341,9 +354,9 @@ static void test_tailcall_4(void)
return;
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", i);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -404,7 +417,7 @@ static void test_tailcall_5(void)
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -429,9 +442,9 @@ static void test_tailcall_5(void)
return;
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", i);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -490,7 +503,7 @@ static void test_tailcall_bpf2bpf_1(void)
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -508,9 +521,9 @@ static void test_tailcall_bpf2bpf_1(void)
/* nop -> jmp */
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", i);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -574,7 +587,7 @@ static void test_tailcall_bpf2bpf_2(void)
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -590,7 +603,7 @@ static void test_tailcall_bpf2bpf_2(void)
if (CHECK_FAIL(map_fd < 0))
goto out;
- prog = bpf_object__find_program_by_title(obj, "classifier/0");
+ prog = bpf_object__find_program_by_name(obj, "classifier_0");
if (CHECK_FAIL(!prog))
goto out;
@@ -652,7 +665,7 @@ static void test_tailcall_bpf2bpf_3(void)
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -669,9 +682,9 @@ static void test_tailcall_bpf2bpf_3(void)
goto out;
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", i);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -749,7 +762,7 @@ static void test_tailcall_bpf2bpf_4(bool noise)
if (CHECK_FAIL(err))
return;
- prog = bpf_object__find_program_by_title(obj, "classifier");
+ prog = bpf_object__find_program_by_name(obj, "entry");
if (CHECK_FAIL(!prog))
goto out;
@@ -766,9 +779,9 @@ static void test_tailcall_bpf2bpf_4(bool noise)
goto out;
for (i = 0; i < bpf_map__def(prog_array)->max_entries; i++) {
- snprintf(prog_name, sizeof(prog_name), "classifier/%i", i);
+ snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK_FAIL(!prog))
goto out;
@@ -822,6 +835,8 @@ void test_tailcalls(void)
test_tailcall_4();
if (test__start_subtest("tailcall_5"))
test_tailcall_5();
+ if (test__start_subtest("tailcall_6"))
+ test_tailcall_6();
if (test__start_subtest("tailcall_bpf2bpf_1"))
test_tailcall_bpf2bpf_1();
if (test__start_subtest("tailcall_bpf2bpf_2"))
generated by cgit (git 2.34.1) at 2024-06-04 11:20:54 +0000