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path: root/tools/testing/selftests/bpf/prog_tests/trace_printk.c
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Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/trace_printk.c')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/trace_printk.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/trace_printk.c b/tools/testing/selftests/bpf/prog_tests/trace_printk.c
index e56e88596d64..a5a8104c1ddd 100644
--- a/tools/testing/selftests/bpf/prog_tests/trace_printk.c
+++ b/tools/testing/selftests/bpf/prog_tests/trace_printk.c
@@ -6,18 +6,21 @@
#include "trace_printk.lskel.h"
#define SEARCHMSG "testing,testing"
+#define SEARCHMSG_UTF8 "中文,测试"
static void trace_pipe_cb(const char *str, void *data)
{
if (strstr(str, SEARCHMSG) != NULL)
- (*(int *)data)++;
+ ((int *)data)[0]++;
+ if (strstr(str, SEARCHMSG_UTF8))
+ ((int *)data)[1]++;
}
void serial_test_trace_printk(void)
{
struct trace_printk_lskel__bss *bss;
struct trace_printk_lskel *skel;
- int err = 0, found = 0;
+ int err = 0, found[2] = {};
skel = trace_printk_lskel__open();
if (!ASSERT_OK_PTR(skel, "trace_printk__open"))
@@ -46,11 +49,24 @@ void serial_test_trace_printk(void)
if (!ASSERT_GT(bss->trace_printk_ret, 0, "bss->trace_printk_ret"))
goto cleanup;
- /* verify our search string is in the trace buffer */
- ASSERT_OK(read_trace_pipe_iter(trace_pipe_cb, &found, 1000),
- "read_trace_pipe_iter");
+ if (!ASSERT_GT(bss->trace_printk_utf8_ran, 0, "bss->trace_printk_utf8_ran"))
+ goto cleanup;
+
+ if (!ASSERT_GT(bss->trace_printk_utf8_ret, 0, "bss->trace_printk_utf8_ret"))
+ goto cleanup;
+
+ if (!ASSERT_LT(bss->trace_printk_invalid_spec_ret, 0,
+ "bss->trace_printk_invalid_spec_ret"))
+ goto cleanup;
+
+ /* verify our search strings are in the trace buffer */
+ ASSERT_OK(read_trace_pipe_iter(trace_pipe_cb, found, 1000),
+ "read_trace_pipe_iter");
+
+ if (!ASSERT_EQ(found[0], bss->trace_printk_ran, "found"))
+ goto cleanup;
- if (!ASSERT_EQ(found, bss->trace_printk_ran, "found"))
+ if (!ASSERT_EQ(found[1], bss->trace_printk_utf8_ran, "found_utf8"))
goto cleanup;
cleanup: