From 673edf22613a054da4b78d25924c0ecb7b9157fd Mon Sep 17 00:00:00 2001
From: Berkus Decker <berkus+github@metta.systems>
Date: Sun, 3 Mar 2019 22:06:19 +0200
Subject: [PATCH] Generate gdb-connect file with RTT address automatically

---
 Makefile            |  1 +
 gdb-connect         |  2 --
 make-gdb-connect.sh | 10 ++++++++++
 3 files changed, 11 insertions(+), 2 deletions(-)
 delete mode 100644 gdb-connect
 create mode 100755 make-gdb-connect.sh

diff --git a/Makefile b/Makefile
index 9f3a763..e99f036 100644
--- a/Makefile
+++ b/Makefile
@@ -89,6 +89,7 @@ openocd:
 	$(OPENOCD) -f interface/jlink.cfg -f ./doc/rpi3_jlink.cfg
 
 gdb: kernel8.img
+	make nm | grep _SEGGER_RTT | awk '{print $$1}' | ./make-gdb-connect.sh
 	env RUST_GDB=$(GDB) rust-gdb -x gdb-connect kernel8
 
 gdbdash: kernel8.img
diff --git a/gdb-connect b/gdb-connect
deleted file mode 100644
index 43d554f..0000000
--- a/gdb-connect
+++ /dev/null
@@ -1,2 +0,0 @@
-target remote :3333
-
diff --git a/make-gdb-connect.sh b/make-gdb-connect.sh
new file mode 100755
index 0000000..8e51028
--- /dev/null
+++ b/make-gdb-connect.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+# Generate gdb-connect script with given RTT block address, to avoid typing it in manually
+
+[ $# -ge 1 ] && ADDR="$1" || ADDR=$(cat)
+
+cat <<EOF > gdb-connect
+target remote :3333
+monitor rttserver start 19021 0
+monitor rtt setup 0x$ADDR 24 "SEGGER RTT"
+EOF