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path: root/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
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Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c27
1 files changed, 16 insertions, 11 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
index 522237aa4470..e834a01de16a 100644
--- a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
+++ b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
@@ -24,13 +24,19 @@ static void get_stack_print_output(void *ctx, int cpu, void *data, __u32 size)
{
bool good_kern_stack = false, good_user_stack = false;
const char *nonjit_func = "___bpf_prog_run";
- struct get_stack_trace_t *e = data;
+ /* perfbuf-submitted data is 4-byte aligned, but we need 8-byte
+ * alignment, so copy data into a local variable, for simplicity
+ */
+ struct get_stack_trace_t e;
int i, num_stack;
static __u64 cnt;
struct ksym *ks;
cnt++;
+ memset(&e, 0, sizeof(e));
+ memcpy(&e, data, size <= sizeof(e) ? size : sizeof(e));
+
if (size < sizeof(struct get_stack_trace_t)) {
__u64 *raw_data = data;
bool found = false;
@@ -57,19 +63,19 @@ static void get_stack_print_output(void *ctx, int cpu, void *data, __u32 size)
good_user_stack = true;
}
} else {
- num_stack = e->kern_stack_size / sizeof(__u64);
+ num_stack = e.kern_stack_size / sizeof(__u64);
if (env.jit_enabled) {
good_kern_stack = num_stack > 0;
} else {
for (i = 0; i < num_stack; i++) {
- ks = ksym_search(e->kern_stack[i]);
+ ks = ksym_search(e.kern_stack[i]);
if (ks && (strcmp(ks->name, nonjit_func) == 0)) {
good_kern_stack = true;
break;
}
}
}
- if (e->user_stack_size > 0 && e->user_stack_buildid_size > 0)
+ if (e.user_stack_size > 0 && e.user_stack_buildid_size > 0)
good_user_stack = true;
}
@@ -83,9 +89,8 @@ void test_get_stack_raw_tp(void)
{
const char *file = "./test_get_stack_rawtp.o";
const char *file_err = "./test_get_stack_rawtp_err.o";
- const char *prog_name = "raw_tracepoint/sys_enter";
+ const char *prog_name = "bpf_prog1";
int i, err, prog_fd, exp_cnt = MAX_CNT_RAWTP;
- struct perf_buffer_opts pb_opts = {};
struct perf_buffer *pb = NULL;
struct bpf_link *link = NULL;
struct timespec tv = {0, 10};
@@ -94,15 +99,15 @@ void test_get_stack_raw_tp(void)
struct bpf_map *map;
cpu_set_t cpu_set;
- err = bpf_prog_load(file_err, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
+ err = bpf_prog_test_load(file_err, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
if (CHECK(err >= 0, "prog_load raw tp", "err %d errno %d\n", err, errno))
return;
- err = bpf_prog_load(file, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
+ err = bpf_prog_test_load(file, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
if (CHECK(err, "prog_load raw tp", "err %d errno %d\n", err, errno))
return;
- prog = bpf_object__find_program_by_title(obj, prog_name);
+ prog = bpf_object__find_program_by_name(obj, prog_name);
if (CHECK(!prog, "find_probe", "prog '%s' not found\n", prog_name))
goto close_prog;
@@ -124,8 +129,8 @@ void test_get_stack_raw_tp(void)
if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
goto close_prog;
- pb_opts.sample_cb = get_stack_print_output;
- pb = perf_buffer__new(bpf_map__fd(map), 8, &pb_opts);
+ pb = perf_buffer__new(bpf_map__fd(map), 8, get_stack_print_output,
+ NULL, NULL, NULL);
if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
goto close_prog;