serial: smh: Implement puts for DM
This adds an implementation of puts for DM. The implementation is not as
clean as for the non-DM puts because we have to handle non-nul-terminated
string. We also handle short writes (though these are probably very
unusual).
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 6b189f8..dc514c9 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -834,6 +834,7 @@
config SEMIHOSTING_SERIAL
bool "Semihosting UART support"
depends on SEMIHOSTING && !SERIAL_RX_BUFFER
+ imply SERIAL_PUTS
help
Select this to enable a serial UART using semihosting. Special halt
instructions will be issued which an external debugger (such as a