Merge pull request #21 from sifive/add_freedom_sim_targets

[riscv-tests.git] / debug / testlib.py

diff --git a/debug/testlib.py b/debug/testlib.py
index f654d437d0cb0655458ef983b6a44290545cc51a..99c4a7628b0188568d98a0be9898dd4c5dc3d0e0 100644 (file)
--- a/debug/testlib.py
+++ b/debug/testlib.py
@@ -5,6 +5,7 @@ import subprocess
 import tempfile
 import testlib
 import unittest
+import time
 
 # Note that gdb comes with its own testsuite. I was unable to figure out how to
 # run that testsuite against the spike simulator.
@@ -17,10 +18,8 @@ def find_file(path):
     return None
 
 def compile(args, xlen=32):
-    """Compile a single .c file into a binary."""
-    dst = os.path.splitext(args[0])[0]
     cc = os.path.expandvars("$RISCV/bin/riscv%d-unknown-elf-gcc" % xlen)
-    cmd = [cc, "-g", "-o", dst]
+    cmd = [cc, "-g"]
     for arg in args:
         found = find_file(arg)
         if found:
@@ -30,7 +29,6 @@ def compile(args, xlen=32):
     cmd = " ".join(cmd)
     result = os.system(cmd)
     assert result == 0, "%r failed" % cmd
-    return dst
 
 def unused_port():
     # http://stackoverflow.com/questions/2838244/get-open-tcp-port-in-python/2838309#2838309
@@ -42,13 +40,15 @@ def unused_port():
     return port
 
 class Spike(object):
-    def __init__(self, cmd, binary=None, halted=False, with_gdb=True, timeout=None):
+    def __init__(self, cmd, binary=None, halted=False, with_gdb=True, timeout=None,
+            xlen=64):
         """Launch spike. Return tuple of its process and the port it's running on."""
         if cmd:
             cmd = shlex.split(cmd)
         else:
             cmd = ["spike"]
-        cmd.append("-l")    #<<<
+        if (xlen == 32):
+            cmd += ["--isa", "RV32"]
 
         if timeout:
             cmd = ["timeout", str(timeout)] + cmd
@@ -63,6 +63,7 @@ class Spike(object):
             cmd.append(binary)
         logfile = open("spike.log", "w")
         logfile.write("+ %s\n" % " ".join(cmd))
+        logfile.flush()
         self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=logfile,
                 stderr=logfile)
 
@@ -76,8 +77,46 @@ class Spike(object):
     def wait(self, *args, **kwargs):
         return self.process.wait(*args, **kwargs)
 
+class VcsSim(object):
+    def __init__(self, simv=None, debug=False):
+        if simv:
+            cmd = shlex.split(simv)
+        else:
+            cmd =  ["simv"]
+        cmd += ["+jtag_vpi_enable"]
+        if debug:
+            cmd[0] = cmd[0] + "-debug"
+            cmd += ["+vcdplusfile=output/gdbserver.vpd"]
+        logfile = open("simv.log", "w")
+        logfile.write("+ %s\n" % " ".join(cmd))
+        logfile.flush()
+        listenfile = open("simv.log", "r")
+        listenfile.seek(0,2)
+        self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=logfile,
+                                        stderr=logfile)
+        done = False
+        while (not done):
+            line = listenfile.readline()
+            if (not line):
+                time.sleep(1)
+            if ("Listening on port 5555" in line):
+                done = True
+            
+    def __del__(self):
+        try:
+            self.process.kill()
+            self.process.wait()
+        except OSError:
+            pass
+
+        
 class Openocd(object):
-    def __init__(self, cmd=None, config=None, debug=True):
+    def __init__(self, cmd=None, config=None, debug=False, otherProcess=None):
+
+        # keep handles to other processes -- don't let them be
+        # garbage collected yet.
+
+        self.otherProcess = otherProcess
         if cmd:
             cmd = shlex.split(cmd)
         else:
@@ -87,6 +126,7 @@ class Openocd(object):
         if debug:
             cmd.append("-d")
         logfile = open("openocd.log", "w")
+        logfile.write("+ %s\n" % " ".join(cmd))
         self.process = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=logfile,
                 stderr=logfile)
         # TODO: Pick a random port
@@ -100,11 +140,13 @@ class Openocd(object):
             pass
 
 class Gdb(object):
-    def __init__(self):
-        path = os.path.expandvars("$RISCV/bin/riscv64-unknown-elf-gdb")
-        self.child = pexpect.spawn(path)
+    def __init__(self,
+            cmd=os.path.expandvars("$RISCV/bin/riscv64-unknown-elf-gdb")):
+        self.child = pexpect.spawn(cmd)
         self.child.logfile = file("gdb.log", "w")
+        self.child.logfile.write("+ %s\n" % cmd)
         self.wait()
+        self.command("set confirm off")
         self.command("set width 0")
         self.command("set height 0")
         # Force consistency.
@@ -150,7 +192,7 @@ class Gdb(object):
         return output
 
     def load(self):
-        output = self.command("load")
+        output = self.command("load", timeout=60)
         assert "failed" not in  output
         assert "Transfer rate" in output
 
@@ -159,3 +201,9 @@ class Gdb(object):
         assert "not defined" not in output
         assert "Breakpoint" in output
         return output
+
+    def hbreak(self, location):
+        output = self.command("hbreak %s" % location)
+        assert "not defined" not in output
+        assert "Hardware assisted breakpoint" in output
+        return output