UEFI relies entirely on unicode output, which actual fonts displayed on the screen might not be ready for.
Add a test displaying some international characters, to reveal missing glyphs, especially in our builtin fonts. This would be needed to be manually checked on the screen for correctness.
Signed-off-by: Andre Przywara andre.przywara@arm.com --- lib/efi_selftest/efi_selftest_textoutput.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/lib/efi_selftest/efi_selftest_textoutput.c b/lib/efi_selftest/efi_selftest_textoutput.c index a87f65e197f..a437732496b 100644 --- a/lib/efi_selftest/efi_selftest_textoutput.c +++ b/lib/efi_selftest/efi_selftest_textoutput.c @@ -118,6 +118,11 @@ static int execute(void) efi_st_printf("Unicode not handled properly\n"); return EFI_ST_FAILURE; } + ret = con_out->output_string(con_out, L"Österreich Edelweiß Smørrebrød Smörgås Niño René >Ἑλλάς<\n"); + if (ret != EFI_ST_SUCCESS) { + efi_st_error("OutputString failed for international chars\n"); + return EFI_ST_FAILURE; + } efi_st_printf("\n");
return EFI_ST_SUCCESS;