-#!/usr/bin/python
+#!/usr/bin/env python
import os
import sys
import random
import binascii
+
MSTATUS_UIE = 0x00000001
MSTATUS_SIE = 0x00000002
MSTATUS_HIE = 0x00000004
MSTATUS32_SD = 0x80000000
MSTATUS64_SD = 0x8000000000000000
+def gdb(
+ target=None,
+ port=None,
+ binary=None
+ ):
+
+ gdb = None
+ if parsed.gdb:
+ gdb = testlib.Gdb(parsed.gdb)
+ else:
+ gdb = testlib.Gdb()
+
+ if binary:
+ gdb.command("file %s" % binary)
+ if target:
+ gdb.command("set arch riscv:rv%d" % target.xlen)
+ gdb.command("set remotetimeout %d" % target.timeout_sec)
+ if port:
+ gdb.command("target extended-remote localhost:%d" % port)
+
+ return gdb
+
+
def ihex_line(address, record_type, data):
assert len(data) < 128
line = ":%02X%04X%02X" % (len(data), address, record_type)
data += "%c" % int(line[8+2*i:10+2*i], 16)
return record_type, address, data
+def readable_binary_string(s):
+ return "".join("%02x" % ord(c) for c in s)
+
class DeleteServer(unittest.TestCase):
def tearDown(self):
del self.server
class SimpleRegisterTest(DeleteServer):
def setUp(self):
self.server = target.server()
- self.gdb = testlib.Gdb()
- # For now gdb has to be told what the architecture is when it's not
- # given an ELF file.
- self.gdb.command("set arch riscv:rv%d" % target.xlen)
-
- self.gdb.command("target extended-remote localhost:%d" % self.server.port)
+ self.gdb = gdb(target, self.server.port)
# 0x13 is nop
self.gdb.command("p *((int*) 0x%x)=0x13" % target.ram)
class SimpleMemoryTest(DeleteServer):
def setUp(self):
self.server = target.server()
- self.gdb = testlib.Gdb()
- self.gdb.command("set arch riscv:rv%d" % target.xlen)
- self.gdb.command("target extended-remote localhost:%d" % self.server.port)
+ self.gdb = gdb(target, self.server.port)
def access_test(self, size, data_type):
self.assertEqual(self.gdb.p("sizeof(%s)" % data_type),
for line in b:
record_type, address, line_data = ihex_parse(line)
if (record_type == 0):
- self.assertEqual(line_data, data[address:address+len(line_data)])
+ self.assertEqual(readable_binary_string(line_data),
+ readable_binary_string(data[address:address+len(line_data)]))
class InstantHaltTest(DeleteServer):
def setUp(self):
self.server = target.server()
- self.gdb = testlib.Gdb()
- self.gdb.command("set arch riscv:rv%d" % target.xlen)
- self.gdb.command("target extended-remote localhost:%d" % self.server.port)
-
+ self.gdb = gdb(target, self.server.port)
+
def test_instant_halt(self):
self.assertEqual(target.reset_vector, self.gdb.p("$pc"))
# mcycle and minstret have no defined reset value.
self.binary = target.compile("programs/debug.c", "programs/checksum.c",
"programs/tiny-malloc.c", "-DDEFINE_MALLOC", "-DDEFINE_FREE")
self.server = target.server()
- self.gdb = testlib.Gdb()
- self.gdb.command("file %s" % self.binary)
- self.gdb.command("target extended-remote localhost:%d" % self.server.port)
+ self.gdb = gdb(target, self.server.port, self.binary)
self.gdb.load()
self.gdb.b("_exit")
def test_function_call(self):
self.gdb.b("main:start")
self.gdb.c()
- text = "Howdy, Earth!"
- gdb_length = self.gdb.p('strlen("%s")' % text)
- self.assertEqual(gdb_length, len(text))
+ self.assertEqual(self.gdb.p('fib(6)'), 8)
+ self.assertEqual(self.gdb.p('fib(7)'), 13)
self.exit()
def test_change_string(self):
def test_turbostep(self):
"""Single step a bunch of times."""
+ self.gdb.b("main:start")
+ self.gdb.c()
self.gdb.command("p i=0");
last_pc = None
advances = 0
def setUp(self):
self.binary = target.compile("programs/step.S")
self.server = target.server()
- self.gdb = testlib.Gdb()
- self.gdb.command("file %s" % self.binary)
- self.gdb.command("target extended-remote localhost:%d" % self.server.port)
+ self.gdb = gdb(target, self.server.port, self.binary)
self.gdb.load()
self.gdb.b("main")
self.gdb.c()
def setUp(self):
self.binary = target.compile("programs/regs.S")
self.server = target.server()
- self.gdb = testlib.Gdb()
- self.gdb.command("file %s" % self.binary)
- self.gdb.command("target extended-remote localhost:%d" % self.server.port)
+ self.gdb = gdb(target, self.server.port, self.binary)
self.gdb.load()
self.gdb.b("main")
self.gdb.b("handle_trap")
self.gdb.p("$pc=write_regs")
for i, r in enumerate(regs):
- self.gdb.command("p $%s=%d" % (r, (0xdeadbeef<<i)+17))
- self.gdb.command("p $x1=data")
+ self.gdb.p("$%s=%d" % (r, (0xdeadbeef<<i)+17))
+ self.gdb.p("$x1=data")
self.gdb.command("b all_done")
output = self.gdb.c()
self.assertIn("Breakpoint ", output)
self.binary = target.compile(download_c.name, "programs/checksum.c")
self.server = target.server()
- self.gdb = testlib.Gdb()
- self.gdb.command("file %s" % self.binary)
- self.gdb.command("target extended-remote localhost:%d" % self.server.port)
-
+ self.gdb = gdb(target, self.server.port, self.binary)
+
def test_download(self):
output = self.gdb.load()
self.gdb.command("b _exit")
def setUp(self):
self.binary = target.compile("programs/mprv.S")
self.server = target.server()
- self.gdb = testlib.Gdb()
- self.gdb.command("file %s" % self.binary)
- self.gdb.command("target extended-remote localhost:%d" % self.server.port)
+ self.gdb = gdb(target, self.server.port, self.binary)
self.gdb.load()
def test_mprv(self):
output = self.gdb.command("p/x *(int*)(((char*)&data)-0x80000000)")
self.assertIn("0xbead", output)
+class PrivTest(DeleteServer):
+ def setUp(self):
+ self.binary = target.compile("programs/priv.S")
+ self.server = target.server()
+ self.gdb = gdb(target, self.server.port, self.binary)
+ self.gdb.load()
+
+ misa = self.gdb.p("$misa")
+ self.supported = set()
+ if misa & (1<<20):
+ self.supported.add(0)
+ if misa & (1<<18):
+ self.supported.add(1)
+ if misa & (1<<7):
+ self.supported.add(2)
+ self.supported.add(3)
+
+ def test_rw(self):
+ """Test reading/writing priv."""
+ for privilege in range(4):
+ self.gdb.p("$priv=%d" % privilege)
+ self.gdb.stepi()
+ actual = self.gdb.p("$priv")
+ self.assertIn(actual, self.supported)
+ if privilege in self.supported:
+ self.assertEqual(actual, privilege)
+
+ def test_change(self):
+ """Test that the core's privilege level actually changes."""
+
+ if 0 not in self.supported:
+ # TODO: return not applicable
+ return
+
+ self.gdb.b("main")
+ self.gdb.c()
+
+ # Machine mode
+ self.gdb.p("$priv=3")
+ main = self.gdb.p("$pc")
+ self.gdb.stepi()
+ self.assertEqual("%x" % self.gdb.p("$pc"), "%x" % (main+4))
+
+ # User mode
+ self.gdb.p("$priv=0")
+ self.gdb.stepi()
+ # Should have taken an exception, so be nowhere near main.
+ pc = self.gdb.p("$pc")
+ self.assertTrue(pc < main or pc > main + 0x100)
+
class Target(object):
directory = None
-
+ timeout_sec = 2
+
def server(self):
raise NotImplementedError
def compile(self, *sources):
- binary_name = "%s_%s" % (
+ binary_name = "%s_%s-%d" % (
self.name,
- os.path.basename(os.path.splitext(sources[0])[0]))
+ os.path.basename(os.path.splitext(sources[0])[0]),
+ self.xlen)
if parsed.isolate:
self.temporary_binary = tempfile.NamedTemporaryFile(
prefix=binary_name + "_")
return testlib.Openocd(cmd=parsed.cmd,
config="targets/%s/openocd.cfg" % self.name)
+class FreedomE300SimTarget(Target):
+ name = "freedom-e300-sim"
+ xlen = 32
+ timeout_sec = 240
+ ram = 0x80000000
+ ram_size = 256 * 1024 * 1024
+ instruction_hardware_breakpoint_count = 2
+
+ def server(self):
+ sim = testlib.VcsSim(simv=parsed.run, debug=False)
+ openocd = testlib.Openocd(cmd=parsed.cmd,
+ config="targets/%s/openocd.cfg" % self.name,
+ otherProcess = sim)
+ time.sleep(20)
+ return openocd
+
+class FreedomU500Target(Target):
+ name = "freedom-u500"
+ xlen = 64
+ ram = 0x80000000
+ ram_size = 16 * 1024
+ instruction_hardware_breakpoint_count = 2
+
+ def server(self):
+ return testlib.Openocd(cmd=parsed.cmd,
+ config="targets/%s/openocd.cfg" % self.name)
+
+class FreedomU500SimTarget(Target):
+ name = "freedom-u500-sim"
+ xlen = 64
+ timeout_sec = 240
+ ram = 0x80000000
+ ram_size = 256 * 1024 * 1024
+ instruction_hardware_breakpoint_count = 2
+
+ def server(self):
+ sim = testlib.VcsSim(simv=parsed.run, debug=False)
+ openocd = testlib.Openocd(cmd=parsed.cmd,
+ config="targets/%s/openocd.cfg" % self.name,
+ otherProcess = sim)
+ time.sleep(20)
+ return openocd
+
targets = [
Spike32Target,
Spike64Target,
- FreedomE300Target
- ]
+ FreedomE300Target,
+ FreedomU500Target,
+ FreedomE300SimTarget,
+ FreedomU500SimTarget]
def main():
parser = argparse.ArgumentParser(
epilog="""
Example command line from the real world:
- Run all RegsTest cases against a MicroSemi m2gl_m2s board, with custom openocd command:
- ./gdbserver.py --m2gl_m2s --cmd "$HOME/SiFive/openocd/src/openocd -s $HOME/SiFive/openocd/tcl -d" -- -vf RegsTest
+ Run all RegsTest cases against a physical FPGA, with custom openocd command:
+ ./gdbserver.py --freedom-e-300 --cmd "$HOME/SiFive/openocd/src/openocd -s $HOME/SiFive/openocd/tcl -d" -- -vf RegsTest
""")
group = parser.add_mutually_exclusive_group(required=True)
for t in targets:
group.add_argument("--%s" % t.name, action="store_const", const=t,
dest="target")
+ parser.add_argument("--run",
+ help="The command to use to start the actual target (e.g. simulation)")
parser.add_argument("--cmd",
help="The command to use to start the debug server.")
+ parser.add_argument("--gdb",
+ help="The command to use to start gdb.")
+
+ xlen_group = parser.add_mutually_exclusive_group()
+ xlen_group.add_argument("--32", action="store_const", const=32, dest="xlen",
+ help="Force the target to be 32-bit.")
+ xlen_group.add_argument("--64", action="store_const", const=64, dest="xlen",
+ help="Force the target to be 64-bit.")
+
parser.add_argument("--isolate", action="store_true",
help="Try to run in such a way that multiple instances can run at "
"the same time. This may make it harder to debug a failure if it "
"does occur.")
+
parser.add_argument("unittest", nargs="*")
global parsed
parsed = parser.parse_args()
global target
target = parsed.target()
+
+ if parsed.xlen:
+ target.xlen = parsed.xlen
+
unittest.main(argv=[sys.argv[0]] + parsed.unittest)
# TROUBLESHOOTING TIPS
# If a particular test fails, run just that one test, eg.:
-# ./tests/gdbserver.py MprvTest.test_mprv
+# ./gdbserver.py MprvTest.test_mprv
# Then inspect gdb.log and spike.log to see what happened in more detail.
if __name__ == '__main__':
projects / riscv-tests.git / blobdiff