def test(self):
if self.gdb.one_hart_per_gdb() or not self.server.smp():
return 'not_applicable'
old_mtime = set()
for _ in range(5):
self.gdb.c_all(wait=False)
time.sleep(2)
self.gdb.interrupt_all()
mtime_value = []
counter = []
for hart in self.target.harts:
self.gdb.select_hart(hart)
mv = self.gdb.p("mtime_value")
assertNotIn(mv, old_mtime,
"mtime doesn't appear to be changing at all")
mtime_value.append(mv)
c = self.gdb.p("counter")
assertNotEqual(c, 0,
"counter didn't increment; code didn't run?")
counter.append(c)
self.gdb.p("counter=0")
old_mtime.update(mtime_value)
mtime_spread = max(mtime_value) - min(mtime_value)
print "mtime_spread:", mtime_spread
counter_spread = max(counter) - min(counter)
print "counter_spread:", counter_spread
assertLess(mtime_spread, 100 * len(self.target.harts),
"Harts don't halt around the same time.")
def test(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
jumps = 0
for _ in range(10):
self.gdb.stepi()
pc = self.gdb.p("$pc")
assertNotEqual(last_pc, pc)
if last_pc and pc > last_pc and pc - last_pc <= 4:
advances += 1
else:
jumps += 1
last_pc = pc
# Some basic sanity that we're not running between breakpoints or
# something.
assertGreater(jumps, 1)
assertGreater(advances, 5)
def test(self):
"""Single step a bunch of times."""
self.gdb.b("main:start")
self.gdb.c()
self.gdb.command("p i=0")
last_pc = None
advances = 0
jumps = 0
for _ in range(100):
self.gdb.stepi()
pc = self.gdb.p("$pc")
assertNotEqual(last_pc, pc)
if last_pc and pc > last_pc and pc - last_pc <= 4:
advances += 1
else:
jumps += 1
last_pc = pc
# Some basic sanity that we're not running between breakpoints or
# something.
assertGreater(jumps, 10)
assertGreater(advances, 50)
def test(self):
if self.gdb.one_hart_per_gdb() or not self.server.smp():
raise TestNotApplicable
old_mtime = set()
for _ in range(5):
self.gdb.c_all(wait=False)
time.sleep(2)
self.gdb.interrupt_all()
mtime_value = []
counter = []
for hart in self.target.harts:
self.gdb.select_hart(hart)
mv = self.gdb.p("$s2")
assertNotIn(mv, old_mtime,
"mtime doesn't appear to be changing at all")
mtime_value.append(mv)
c = self.gdb.p("$s0")
assertNotEqual(c, 0,
"counter didn't increment; code didn't run?")
counter.append(c)
# Reset the counter for the next round.
self.gdb.p("$s0=0")
old_mtime.update(mtime_value)
mtime_spread = max(mtime_value) - min(mtime_value)
print "mtime_spread:", mtime_spread
counter_spread = max(counter) - min(counter)
print "counter_spread:", counter_spread
assertLess(mtime_spread, 101 * (len(self.target.harts) - 1),
"Harts don't halt around the same time.")
# spike executes normal code 5000 instructions at a time, so we
# expect 5k instructions to be executed on one hart before the
# other gets to go. Our loop (unoptimized) is quite a few
# instructions, but allow for 5k anyway.
assertLess(counter_spread, 5001 * (len(self.target.harts) - 1),
"Harts don't resume around the same time.")
def test(self):
if self.gdb.one_hart_per_gdb() or not self.server.smp():
return 'not_applicable'
old_mtime = set()
for _ in range(5):
self.gdb.c_all(wait=False)
time.sleep(2)
self.gdb.interrupt_all()
mtime_value = []
counter = []
for hart in self.target.harts:
self.gdb.select_hart(hart)
mv = self.gdb.p("$s2")
assertNotIn(mv, old_mtime,
"mtime doesn't appear to be changing at all")
mtime_value.append(mv)
c = self.gdb.p("$s0")
assertNotEqual(c, 0,
"counter didn't increment; code didn't run?")
counter.append(c)
# Reset the counter for the next round.
self.gdb.p("$s0=0")
old_mtime.update(mtime_value)
mtime_spread = max(mtime_value) - min(mtime_value)
print "mtime_spread:", mtime_spread
counter_spread = max(counter) - min(counter)
print "counter_spread:", counter_spread
assertLess(mtime_spread, 101 * (len(self.target.harts) - 1),
"Harts don't halt around the same time.")
# spike executes normal code 5000 instructions at a time, so we
# expect 5k instructions to be executed on one hart before the
# other gets to go. Our loop (unoptimized) is quite a few
# instructions, but allow for 5k anyway.
assertLess(counter_spread, 5001 * (len(self.target.harts) - 1),
"Harts don't resume around the same time.")
def test(self):
previous_hart_count = [0 for h in self.target.harts]
previous_interrupt_count = [0 for h in self.target.harts]
# Check 10 times
for i in range(10):
# 3 attempts for each time we want the check to pass
for attempt in range(3):
self.gdb.global_command("echo round %d attempt %d\\n" %
(i, attempt))
self.gdb.c_all(wait=False)
time.sleep(2)
self.gdb.interrupt_all()
hart_count = self.gdb.p("hart_count")
interrupt_count = self.gdb.p("interrupt_count")
ok = True
for i, h in enumerate(self.target.harts):
if hart_count[i] <= previous_hart_count[i]:
ok = False
break
if interrupt_count[i] <= previous_interrupt_count[i]:
ok = False
break
self.gdb.p("$mie")
self.gdb.p("$mip")
self.gdb.p("$mstatus")
self.gdb.p("$priv")
self.gdb.p("buf", fmt="")
self.gdb.select_hart(h)
pc = self.gdb.p("$pc")
self.gdb.stepi()
stepped_pc = self.gdb.p("$pc")
assertNotEqual(pc, stepped_pc)
previous_hart_count = hart_count
previous_interrupt_count = interrupt_count
if ok:
break
else:
assert False, \
"hart count or interrupt didn't increment as expected"
def test(self):
previous_hart_count = [0 for h in self.target.harts]
previous_interrupt_count = [0 for h in self.target.harts]
for _ in range(10):
self.gdb.c(wait=False)
time.sleep(2)
self.gdb.interrupt()
self.gdb.p("$mie")
self.gdb.p("$mip")
self.gdb.p("$mstatus")
self.gdb.p("$priv")
self.gdb.p("buf", fmt="")
hart_count = self.gdb.p("hart_count")
interrupt_count = self.gdb.p("interrupt_count")
for i, h in enumerate(self.target.harts):
assertGreater(hart_count[i], previous_hart_count[i])
assertGreater(interrupt_count[i], previous_interrupt_count[i])
self.gdb.select_hart(h)
pc = self.gdb.p("$pc")
self.gdb.stepi()
stepped_pc = self.gdb.p("$pc")
assertNotEqual(pc, stepped_pc)