From 2b116f9fb820641cb0a3a04e51164f2ef76478d6 Mon Sep 17 00:00:00 2001
From: Megan Wachs <megan@sifive.com>
Date: Tue, 18 Apr 2017 15:09:55 -0700
Subject: debug: Don't halt out of reset. It's unrealistic. Use a program which
 loops (actually it just gets an exception anyway).

---
 debug/programs/infinite_loop    | Bin 0 -> 6344 bytes
 debug/programs/infinite_loop.c  |  14 ++++++++++++++
 debug/targets.py                |   4 ++--
 debug/targets/spike/openocd.cfg |   3 ++-
 debug/testlib.py                |   4 ++--
 5 files changed, 20 insertions(+), 5 deletions(-)
 create mode 100755 debug/programs/infinite_loop
 create mode 100644 debug/programs/infinite_loop.c

diff --git a/debug/programs/infinite_loop b/debug/programs/infinite_loop
new file mode 100755
index 0000000..628fd24
Binary files /dev/null and b/debug/programs/infinite_loop differ
diff --git a/debug/programs/infinite_loop.c b/debug/programs/infinite_loop.c
new file mode 100644
index 0000000..460f78a
--- /dev/null
+++ b/debug/programs/infinite_loop.c
@@ -0,0 +1,14 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+
+int main()
+{
+
+  volatile int forever = 1;
+  while (forever);
+
+  return 1;
+}
diff --git a/debug/targets.py b/debug/targets.py
index d49b397..a69f43d 100644
--- a/debug/targets.py
+++ b/debug/targets.py
@@ -76,14 +76,14 @@ class Spike64Target(SpikeTarget):
     use_fpu = True
 
     def target(self):
-        return testlib.Spike(self.sim_cmd, halted=True)
+        return testlib.Spike(self.sim_cmd)
 
 class Spike32Target(SpikeTarget):
     name = "spike32"
     xlen = 32
 
     def target(self):
-        return testlib.Spike(self.sim_cmd, halted=True, xlen=32)
+        return testlib.Spike(self.sim_cmd, xlen=32)
 
 class FreedomE300Target(Target):
     name = "freedom-e300"
diff --git a/debug/targets/spike/openocd.cfg b/debug/targets/spike/openocd.cfg
index 881d745..29f5040 100644
--- a/debug/targets/spike/openocd.cfg
+++ b/debug/targets/spike/openocd.cfg
@@ -13,5 +13,6 @@ target create $_TARGETNAME riscv -chain-position $_TARGETNAME -rtos riscv
 gdb_report_data_abort enable
 
 init
-
 halt
+
+echo "Ready for Remote Connections"
\ No newline at end of file
diff --git a/debug/testlib.py b/debug/testlib.py
index f1f0fe1..a66d59a 100644
--- a/debug/testlib.py
+++ b/debug/testlib.py
@@ -78,7 +78,7 @@ class Spike(object):
             cmd += ['--rbb-port', '0']
             os.environ['REMOTE_BITBANG_HOST'] = 'localhost'
         cmd.append("-m32")
-        cmd.append('pk')
+        cmd.append('programs/infinite_loop')
         if binary:
             cmd.append(binary)
         logfile = open(self.logname, "w")
@@ -195,7 +195,7 @@ class Openocd(object):
         messaged = False
         while True:
             log = open(Openocd.logname).read()
-            if "OK GO NOW" in log:
+            if "Ready for Remote Connections" in log:
                 break
             if not self.process.poll() is None:
                 raise Exception(
-- 
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