+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", )
+
+ def setup(self):
+ self.gdb.load()
+ self.gdb.b("main")
+ self.gdb.c()
+
+ def test(self):
+ main_address = self.gdb.p("$pc")
+ if self.target.extensionSupported("c"):
+ sequence = (4, 8, 0xc, 0xe, 0x14, 0x18, 0x22, 0x1c, 0x24, 0x24)
+ else:
+ sequence = (4, 8, 0xc, 0x10, 0x18, 0x1c, 0x28, 0x20, 0x2c, 0x2c)
+ for expected in sequence:
+ self.gdb.stepi()
+ pc = self.gdb.p("$pc")
+ assertEqual("%x" % (pc - main_address), "%x" % expected)
+
+class TriggerTest(GdbTest):
+ compile_args = ("programs/trigger.S", )
+ def setup(self):
+ self.gdb.load()
+ self.gdb.b("_exit")
+ self.gdb.b("main")
+ self.gdb.c()
+
+ def exit(self):
+ output = self.gdb.c()
+ assertIn("Breakpoint", output)
+ assertIn("_exit", output)
+
+class TriggerExecuteInstant(TriggerTest):
+ """Test an execute breakpoint on the first instruction executed out of
+ debug mode."""
+ def test(self):
+ main_address = self.gdb.p("$pc")
+ self.gdb.command("hbreak *0x%x" % (main_address + 4))
+ self.gdb.c()
+ assertEqual(self.gdb.p("$pc"), main_address+4)
+
+# FIXME: Triggers aren't quite working yet
+#class TriggerLoadAddress(TriggerTest):
+# def test(self):
+# self.gdb.command("rwatch *((&data)+1)")
+# output = self.gdb.c()
+# assertIn("read_loop", output)
+# assertEqual(self.gdb.p("$a0"),
+# self.gdb.p("(&data)+1"))
+# self.exit()
+
+class TriggerLoadAddressInstant(TriggerTest):
+ """Test a load address breakpoint on the first instruction executed out of
+ debug mode."""
+ def test(self):
+ self.gdb.command("b just_before_read_loop")
+ self.gdb.c()
+ read_loop = self.gdb.p("&read_loop")
+ self.gdb.command("rwatch data")
+ self.gdb.c()
+ # Accept hitting the breakpoint before or after the load instruction.
+ assertIn(self.gdb.p("$pc"), [read_loop, read_loop + 4])
+ assertEqual(self.gdb.p("$a0"), self.gdb.p("&data"))
+
+# FIXME: Triggers aren't quite working yet
+#class TriggerStoreAddress(TriggerTest):
+# def test(self):
+# self.gdb.command("watch *((&data)+3)")
+# output = self.gdb.c()
+# assertIn("write_loop", output)
+# assertEqual(self.gdb.p("$a0"),
+# self.gdb.p("(&data)+3"))
+# self.exit()
+
+class TriggerStoreAddressInstant(TriggerTest):
+ def test(self):
+ """Test a store address breakpoint on the first instruction executed out
+ of debug mode."""
+ self.gdb.command("b just_before_write_loop")
+ self.gdb.c()
+ write_loop = self.gdb.p("&write_loop")
+ self.gdb.command("watch data")
+ self.gdb.c()
+ # Accept hitting the breakpoint before or after the store instruction.
+ assertIn(self.gdb.p("$pc"), [write_loop, write_loop + 4])
+ assertEqual(self.gdb.p("$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)
+
+ triggers = []
+
+ if self.target.xlen == 32:
+ xlen_type = 'int'
+ elif self.target.xlen == 64:
+ xlen_type = 'long long'
+ else:
+ raise NotImplementedError
+
+ dmode_count = 0
+ i = 0
+ for i in range(16):
+ tdata1 = self.gdb.p("((%s *)&data)[%d]" % (xlen_type, 2*i))
+ if tdata1 == 0:
+ break
+ tdata2 = self.gdb.p("((%s *)&data)[%d]" % (xlen_type, 2*i+1))
+
+ if tdata1 & dmode:
+ dmode_count += 1
+ else:
+ assertEqual(tdata1 & 0xffff, tdata1_lsbs)
+ assertEqual(tdata2, tdata2)
+
+ assertGreater(i, 1)
+ assertEqual(dmode_count, 1)
+
+ return triggers
+
+ def test(self):
+ self.gdb.command("hbreak write_load_trigger")
+ self.gdb.b("clear_triggers")
+ self.gdb.p("$pc=write_store_trigger")
+ output = self.gdb.c()
+ assertIn("write_load_trigger", output)
+ self.check_triggers((1<<6) | (1<<1), 0xdeadbee0)
+ output = self.gdb.c()
+ assertIn("clear_triggers", output)
+ self.check_triggers((1<<6) | (1<<0), 0xfeedac00)
+
+class RegsTest(GdbTest):
+ compile_args = ("programs/regs.S", )
+ def setup(self):