From 173a86675cbdec604058dd1d45f65ab2e13f455d Mon Sep 17 00:00:00 2001
From: Fabien Chouteau <chouteau@adacore.com>
Date: Fri, 27 Jan 2017 19:40:56 +0100
Subject: [PATCH] Semihosting: Add support of SYS_READC

---
 src/gdbserver/semihosting.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/gdbserver/semihosting.c b/src/gdbserver/semihosting.c
index 4ea6ccf5c..983612961 100644
--- a/src/gdbserver/semihosting.c
+++ b/src/gdbserver/semihosting.c
@@ -457,6 +457,12 @@ int do_semihosting (stlink_t *sl, uint32_t r0, uint32_t r1, uint32_t *ret) {
         }
         break;
     }
+    case SYS_READC:
+    {
+        uint8_t c = getchar();
+        *ret = c;
+        break;
+    }
     case SYS_WRITE0:
     {
         uint8_t buf[WRITE0_BUFFER_SIZE];