Android was seeing a compliation error because its C library does not define LINE_MAX. This replaces the use of LINE_MAX / snprintf with asprintf, which will change the behavior to not truncate the test name if it is over 2048 chars long.

See also: https://github.com/llvm/llvm-project/issues/88119

Signed-off-by: Edward Liaw edliaw@google.com --- tools/testing/selftests/kselftest_harness.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h index 4fd735e48ee7..70fedd2411ed 100644 --- a/tools/testing/selftests/kselftest_harness.h +++ b/tools/testing/selftests/kselftest_harness.h @@ -1156,7 +1156,7 @@ void __run_test(struct __fixture_metadata *f, struct __test_metadata *t) { struct __test_xfail *xfail; - char test_name[LINE_MAX]; + char *test_name; const char *diagnostic;

/* reset test struct */ @@ -1164,8 +1164,8 @@ void __run_test(struct __fixture_metadata *f, t->trigger = 0; memset(t->results->reason, 0, sizeof(t->results->reason));

- snprintf(test_name, sizeof(test_name), "%s%s%s.%s", - f->name, variant->name[0] ? "." : "", variant->name, t->name); + asprintf(&test_name, "%s%s%s.%s", f->name, + variant->name[0] ? "." : "", variant->name, t->name);

ksft_print_msg(" RUN %s ...\n", test_name);

@@ -1203,6 +1203,7 @@ void __run_test(struct __fixture_metadata *f,

ksft_test_result_code(t->exit_code, test_name, diagnostic ? "%s" : "", diagnostic); + free(test_name); }

static int test_harness_run(int argc, char **argv)