import targets
import testlib
-from testlib import assertEqual, assertNotEqual, assertIn
+from testlib import assertEqual, assertNotEqual, assertIn, assertNotIn
from testlib import assertGreater, assertRegexpMatches, assertLess
from testlib import GdbTest
class InstantHaltTest(GdbTest):
def test(self):
- assertEqual(self.target.reset_vector, self.gdb.p("$pc"))
+ """Assert that reset is really resetting what it should."""
+ self.gdb.command("monitor reset halt")
+ self.gdb.command("flushregs")
+ threads = self.gdb.threads()
+ pcs = []
+ for t in threads:
+ self.gdb.thread(t)
+ pcs.append(self.gdb.p("$pc"))
+ for pc in pcs:
+ assertEqual(self.target.reset_vector, pc)
# mcycle and minstret have no defined reset value.
mstatus = self.gdb.p("$mstatus")
assertEqual(mstatus & (MSTATUS_MIE | MSTATUS_MPRV |
def test(self):
"""Change the PC right as we come out of reset."""
# 0x13 is nop
+ self.gdb.command("monitor reset halt")
+ self.gdb.command("flushregs")
self.gdb.command("p *((int*) 0x%x)=0x13" % self.target.ram)
self.gdb.command("p *((int*) 0x%x)=0x13" % (self.target.ram + 4))
self.gdb.command("p *((int*) 0x%x)=0x13" % (self.target.ram + 8))
if self.target.instruction_hardware_breakpoint_count < 1:
return 'not_applicable'
+ if not self.target.honors_tdata1_hmode:
+ # Run to main before setting the breakpoint, because startup code
+ # will otherwise clear the trigger that we set.
+ self.gdb.b("main")
+ self.gdb.c()
+
self.gdb.hbreak("rot13")
# The breakpoint should be hit exactly 2 times.
for _ in range(2):
self.gdb.p("i=0")
self.exit()
+class MulticoreTest(GdbTest):
+ compile_args = ("programs/infinite_loop.S", )
+
+ def setup(self):
+ self.gdb.load()
+
+ def test(self):
+ threads = self.gdb.threads()
+ if len(threads) < 2:
+ return 'not_applicable'
+
+ for t in threads:
+ self.gdb.thread(t)
+ self.gdb.p("$pc=_start")
+
+ # Run to main
+ self.gdb.b("main")
+ self.gdb.c()
+ for t in self.gdb.threads():
+ assertIn("main", t.frame)
+ self.gdb.command("delete breakpoints")
+
+ # Run through the entire loop.
+ self.gdb.b("main_end")
+ self.gdb.c()
+
+ hart_ids = []
+ for t in self.gdb.threads():
+ assertIn("main_end", t.frame)
+ # Check register values.
+ self.gdb.thread(t)
+ hart_id = self.gdb.p("$x1")
+ assertNotIn(hart_id, hart_ids)
+ hart_ids.append(hart_id)
+ for n in range(2, 32):
+ value = self.gdb.p("$x%d" % n)
+ assertEqual(value, hart_ids[-1] + n - 1)
+
+ # Confirmed that we read different register values for different harts.
+ # Write a new value to x1, and run through the add sequence again.
+
+ for t in threads:
+ self.gdb.thread(t)
+ self.gdb.p("$x1=0x%x" % (int(t.id) * 0x800))
+ self.gdb.p("$pc=main_post_csrr")
+ self.gdb.c()
+ for t in self.gdb.threads():
+ assertIn("main_end", t.frame)
+ # Check register values.
+ self.gdb.thread(t)
+ for n in range(1, 32):
+ value = self.gdb.p("$x%d" % n)
+ assertEqual(value, int(t.id) * 0x800 + n - 1)
+
class StepTest(GdbTest):
compile_args = ("programs/step.S", )
assertEqual(self.gdb.p("$a0"), self.gdb.p("&data"))
class TriggerDmode(TriggerTest):
+ def early_applicable(self):
+ return self.target.honors_tdata1_hmode
+
def check_triggers(self, tdata1_lsbs, tdata2):
dmode = 1 << (self.target.xlen-5)
# TODO: remove global
global parsed # pylint: disable=global-statement
parsed = parser.parse_args()
+ target = targets.target(parsed)
- target = parsed.target(parsed.server_cmd, parsed.sim_cmd, parsed.isolate)
if parsed.xlen:
target.xlen = parsed.xlen