return "".join("%02x" % ord(c) for c in s)
class SimpleRegisterTest(GdbTest):
- def check_reg(self, name):
+ def check_reg(self, name, alias):
a = random.randrange(1<<self.hart.xlen)
b = random.randrange(1<<self.hart.xlen)
self.gdb.p("$%s=0x%x" % (name, a))
+ assertEqual(self.gdb.p("$%s" % alias), a)
self.gdb.stepi()
assertEqual(self.gdb.p("$%s" % name), a)
- self.gdb.p("$%s=0x%x" % (name, b))
+ assertEqual(self.gdb.p("$%s" % alias), a)
+ self.gdb.p("$%s=0x%x" % (alias, b))
+ assertEqual(self.gdb.p("$%s" % name), b)
self.gdb.stepi()
assertEqual(self.gdb.p("$%s" % name), b)
+ assertEqual(self.gdb.p("$%s" % alias), b)
def setup(self):
# 0x13 is nop
class SimpleS0Test(SimpleRegisterTest):
def test(self):
- self.check_reg("s0")
+ self.check_reg("s0", "x8")
class SimpleS1Test(SimpleRegisterTest):
def test(self):
- self.check_reg("s1")
+ self.check_reg("s1", "x9")
class SimpleT0Test(SimpleRegisterTest):
def test(self):
- self.check_reg("t0")
+ self.check_reg("t0", "x5")
class SimpleT1Test(SimpleRegisterTest):
def test(self):
- self.check_reg("t1")
+ self.check_reg("t1", "x6")
class SimpleF18Test(SimpleRegisterTest):
- def check_reg(self, name):
- self.gdb.p_raw("$mstatus=$mstatus | 0x00006000")
- self.gdb.stepi()
- a = random.random()
- b = random.random()
- self.gdb.p_raw("$%s=%f" % (name, a))
- self.gdb.stepi()
- assertLess(abs(float(self.gdb.p_raw("$%s" % name)) - a), .001)
- self.gdb.p_raw("$%s=%f" % (name, b))
- self.gdb.stepi()
- assertLess(abs(float(self.gdb.p_raw("$%s" % name)) - b), .001)
+ def check_reg(self, name, alias):
+ if self.hart.extensionSupported('F'):
+ self.gdb.p_raw("$mstatus=$mstatus | 0x00006000")
+ self.gdb.stepi()
+ a = random.random()
+ b = random.random()
+ self.gdb.p_raw("$%s=%f" % (name, a))
+ assertLess(abs(float(self.gdb.p_raw("$%s" % alias)) - a), .001)
+ self.gdb.stepi()
+ assertLess(abs(float(self.gdb.p_raw("$%s" % name)) - a), .001)
+ assertLess(abs(float(self.gdb.p_raw("$%s" % alias)) - a), .001)
+ self.gdb.p_raw("$%s=%f" % (alias, b))
+ assertLess(abs(float(self.gdb.p_raw("$%s" % name)) - b), .001)
+ self.gdb.stepi()
+ assertLess(abs(float(self.gdb.p_raw("$%s" % name)) - b), .001)
+ assertLess(abs(float(self.gdb.p_raw("$%s" % alias)) - b), .001)
- def early_applicable(self):
- return self.hart.extensionSupported('F')
+ size = self.gdb.p("sizeof($%s)" % name)
+ if self.hart.extensionSupported('D'):
+ assertEqual(size, 8)
+ else:
+ assertEqual(size, 4)
+ else:
+ output = self.gdb.p_raw("$" + name)
+ assertEqual(output, "void")
+ output = self.gdb.p_raw("$" + alias)
+ assertEqual(output, "void")
def test(self):
- self.check_reg("f18")
+ self.check_reg("f18", "fs2")
+
+class SimpleNoExistTest(GdbTest):
+ def test(self):
+ try:
+ self.gdb.p("$csr2288")
+ assert False, "Reading csr2288 should have failed"
+ except testlib.CouldNotFetch:
+ pass
+ try:
+ self.gdb.p("$csr2288=5")
+ assert False, "Writing csr2288 should have failed"
+ except testlib.CouldNotFetch:
+ pass
class SimpleMemoryTest(GdbTest):
def access_test(self, size, data_type):
self.gdb.command("dump ihex memory %s 0x%x 0x%x" % (b.name,
self.hart.ram, self.hart.ram + self.length))
self.gdb.command("shell cat %s" % b.name)
- for line in b:
+ for line in b.xreadlines():
record_type, address, line_data = ihex_parse(line)
if record_type == 0:
written_data = data[address:address+len(line_data)]
output = self.gdb.command(cmd)
for reg in ('zero', 'ra', 'sp', 'gp', 'tp'):
assertIn(reg, output)
+ for line in output.splitlines():
+ assertRegexpMatches(line, r"^\S")
#TODO
# mcpuid is one of the few registers that should have the high bit set
self.gdb.p("interrupt_count")
self.gdb.p("local")
-# Fails nondeterministically.
-#class MulticoreRegTest(GdbTest):
-# compile_args = ("programs/infinite_loop.S", "-DMULTICORE")
+class MulticoreRegTest(GdbTest):
+ compile_args = ("programs/infinite_loop.S", "-DMULTICORE")
+
+ def early_applicable(self):
+ return len(self.target.harts) > 1
+
+ def setup(self):
+ self.gdb.load()
+ for hart in self.target.harts:
+ self.gdb.select_hart(hart)
+ self.gdb.p("$pc=_start")
+
+ def test(self):
+ # Run to main
+ for hart in self.target.harts:
+ self.gdb.select_hart(hart)
+ self.gdb.b("main")
+ self.gdb.c()
+ assertIn("main", self.gdb.where())
+ self.gdb.command("delete breakpoints")
+
+ # Run through the entire loop.
+ for hart in self.target.harts:
+ self.gdb.select_hart(hart)
+ self.gdb.b("main_end")
+ self.gdb.c()
+ assertIn("main_end", self.gdb.where())
+
+ hart_ids = []
+ for hart in self.target.harts:
+ self.gdb.select_hart(hart)
+ # Check register values.
+ hart_id = self.gdb.p("$x1")
+ assertNotIn(hart_id, hart_ids)
+ hart_ids.append(hart_id)
+ for n in range(2, 32):
+ value = self.gdb.p("$x%d" % n)
+ assertEqual(value, hart_ids[-1] + n - 1)
+
+ # Confirmed that we read different register values for different harts.
+ # Write a new value to x1, and run through the add sequence again.
+
+ for hart in self.target.harts:
+ self.gdb.select_hart(hart)
+ self.gdb.p("$x1=0x%x" % (hart.index * 0x800))
+ self.gdb.p("$pc=main_post_csrr")
+ self.gdb.c()
+ for hart in self.target.harts:
+ self.gdb.select_hart(hart)
+ assertIn("main", self.gdb.where())
+ # Check register values.
+ for n in range(1, 32):
+ value = self.gdb.p("$x%d" % n)
+ assertEqual(value, hart.index * 0x800 + n - 1)
+
+#class MulticoreRunHaltStepiTest(GdbTest):
+# compile_args = ("programs/multicore.c", "-DMULTICORE")
#
# def early_applicable(self):
# return len(self.target.harts) > 1
# self.gdb.load()
# for hart in self.target.harts:
# self.gdb.select_hart(hart)
+# self.gdb.p("$mhartid")
# self.gdb.p("$pc=_start")
#
# def test(self):
-# # Run to main
-# # Hart 0 is the first to be resumed, so we have to set the breakpoint
-# # there. gdb won't actually set the breakpoint until we tell it to
-# # resume.
-# self.gdb.select_hart(self.target.harts[0])
-# self.gdb.b("main")
-# self.gdb.c_all()
-# for hart in self.target.harts:
-# self.gdb.select_hart(hart)
-# assertIn("main", self.gdb.where())
-# self.gdb.select_hart(self.target.harts[0])
-# self.gdb.command("delete breakpoints")
-#
-# # Run through the entire loop.
-# self.gdb.b("main_end")
-# self.gdb.c_all()
-#
-# hart_ids = []
-# for hart in self.target.harts:
-# self.gdb.select_hart(hart)
-# assertIn("main_end", self.gdb.where())
-# # Check register values.
-# 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 hart in self.target.harts:
-# self.gdb.select_hart(hart)
-# self.gdb.p("$x1=0x%x" % (hart.index * 0x800))
-# self.gdb.p("$pc=main_post_csrr")
-# self.gdb.c_all()
-# for hart in self.target.harts:
-# self.gdb.select_hart(hart)
-# assertIn("main", self.gdb.where())
-# # Check register values.
-# for n in range(1, 32):
-# value = self.gdb.p("$x%d" % n)
-# assertEqual(value, hart.index * 0x800 + n - 1)
-
-class MulticoreRunHaltStepiTest(GdbTest):
+# previous_hart_count = [0 for h in self.target.harts]
+# previous_interrupt_count = [0 for h in self.target.harts]
+# # Check 10 times
+# for i in range(10):
+# # 3 attempts for each time we want the check to pass
+# for attempt in range(3):
+# self.gdb.global_command("echo round %d attempt %d\\n" % (i,
+# attempt))
+# self.gdb.c_all(wait=False)
+# time.sleep(2)
+# self.gdb.interrupt_all()
+# hart_count = self.gdb.p("hart_count")
+# interrupt_count = self.gdb.p("interrupt_count")
+# ok = True
+# for i, h in enumerate(self.target.harts):
+# if hart_count[i] <= previous_hart_count[i]:
+# ok = False
+# break
+# if interrupt_count[i] <= previous_interrupt_count[i]:
+# ok = False
+# break
+# self.gdb.p("$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("$pc")
+# assertNotEqual(pc, stepped_pc)
+# previous_hart_count = hart_count
+# previous_interrupt_count = interrupt_count
+# if ok:
+# break
+# else:
+# assert False, \
+# "hart count or interrupt didn't increment as expected"
+
+class MulticoreRunAllHaltOne(GdbTest):
compile_args = ("programs/multicore.c", "-DMULTICORE")
def early_applicable(self):
return len(self.target.harts) > 1
def setup(self):
+ self.gdb.select_hart(self.target.harts[0])
self.gdb.load()
for hart in self.target.harts:
self.gdb.select_hart(hart)
self.gdb.p("$pc=_start")
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):
+ if not self.gdb.one_hart_per_gdb():
+ return 'not_applicable'
+
+ # Run harts in reverse order
+ for h in reversed(self.target.harts):
+ self.gdb.select_hart(h)
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)
-
-class StepTest(GdbTest):
+
+ self.gdb.interrupt()
+ # Give OpenOCD time to call poll() on both harts, which is what causes
+ # the bug.
+ time.sleep(1)
+ self.gdb.p("buf", fmt="")
+
+class StepTest(GdbSingleHartTest):
compile_args = ("programs/step.S", )
def setup(self):
pc = self.gdb.p("$pc")
assertEqual("%x" % (pc - main_address), "%x" % expected)
-class TriggerTest(GdbTest):
+class JumpHbreak(GdbSingleHartTest):
+ """'jump' resumes execution at location. Execution stops again immediately
+ if there is a breakpoint there.
+ That second line can be trouble."""
+ compile_args = ("programs/trigger.S", )
+
+ def early_applicable(self):
+ return self.hart.instruction_hardware_breakpoint_count >= 1
+
+ def setup(self):
+ self.gdb.load()
+ self.gdb.hbreak("main")
+ self.gdb.c()
+ self.gdb.command("delete 1")
+
+ def test(self):
+ self.gdb.b("read_loop")
+ self.gdb.command("hbreak just_before_read_loop")
+ output = self.gdb.command("jump just_before_read_loop")
+ assertRegexpMatches(output, r"Breakpoint \d, just_before_read_loop ")
+ output = self.gdb.c()
+ assertRegexpMatches(output, r"Breakpoint \d, read_loop ")
+
+class TriggerTest(GdbSingleHartTest):
compile_args = ("programs/trigger.S", )
def setup(self):
self.gdb.load()
self.gdb.command("b just_before_read_loop")
self.gdb.c()
read_loop = self.gdb.p("&read_loop")
- self.gdb.command("rwatch data")
+ read_again = self.gdb.p("&read_again")
+ data = self.gdb.p("&data")
+ self.gdb.command("rwatch *0x%x" % data)
self.gdb.c()
# Accept hitting the breakpoint before or after the load instruction.
assertIn(self.gdb.p("$pc"), [read_loop, read_loop + 4])
assertEqual(self.gdb.p("$a0"), self.gdb.p("&data"))
+ self.gdb.c()
+ assertIn(self.gdb.p("$pc"), [read_again, read_again + 4])
+ assertEqual(self.gdb.p("$a0"), self.gdb.p("&data"))
+
# FIXME: Triggers aren't quite working yet
#class TriggerStoreAddress(TriggerTest):
# def test(self):
self.gdb.command("b just_before_write_loop")
self.gdb.c()
write_loop = self.gdb.p("&write_loop")
- self.gdb.command("watch data")
+ data = self.gdb.p("&data")
+ self.gdb.command("watch *0x%x" % data)
self.gdb.c()
# Accept hitting the breakpoint before or after the store instruction.
assertIn(self.gdb.p("$pc"), [write_loop, write_loop + 4])
assertIn("clear_triggers", output)
self.check_triggers((1<<6) | (1<<0), 0xfeedac00)
-class RegsTest(GdbTest):
+class RegsTest(GdbSingleHartTest):
compile_args = ("programs/regs.S", )
def setup(self):
self.gdb.load()
self.binary = self.target.compile(self.hart, self.download_c.name,
"programs/checksum.c")
- self.gdb.command("file %s" % self.binary)
+ self.gdb.global_command("file %s" % self.binary)
def test(self):
self.gdb.load()
+ self.parkOtherHarts()
self.gdb.command("b _exit")
- self.gdb.c(timeout=60)
+ self.gdb.c()
assertEqual(self.gdb.p("status"), self.crc)
os.unlink(self.download_c.name)
-#class MprvTest(GdbTest):
+#class MprvTest(GdbSingleHartTest):
# compile_args = ("programs/mprv.S", )
# def setup(self):
# self.gdb.load()
# output = self.gdb.command("p/x *(int*)(((char*)&data)-0x80000000)")
# assertIn("0xbead", output)
-class PrivTest(GdbTest):
+class PrivTest(GdbSingleHartTest):
compile_args = ("programs/priv.S", )
def setup(self):
# pylint: disable=attribute-defined-outside-init
class PrivRw(PrivTest):
def test(self):
"""Test reading/writing priv."""
+ # Disable physical memory protection by allowing U mode access to all
+ # memory.
+ try:
+ self.gdb.p("$pmpcfg0=0xf") # TOR, R, W, X
+ self.gdb.p("$pmpaddr0=0x%x" %
+ ((self.hart.ram + self.hart.ram_size) >> 2))
+ except testlib.CouldNotFetch:
+ # PMP registers are optional
+ pass
+
+ # Ensure Virtual Memory is disabled if applicable (SATP register is not
+ # reset)
+ try:
+ self.gdb.p("$satp=0")
+ except testlib.CouldNotFetch:
+ # SATP only exists if you have S mode.
+ pass
+
+ # Leave the PC at _start, where the first 4 instructions should be
+ # legal in any mode.
for privilege in range(4):
self.gdb.p("$priv=%d" % privilege)
self.gdb.stepi()
global parsed # pylint: disable=global-statement
parsed = parser.parse_args()
target = targets.target(parsed)
-
- if parsed.xlen:
- target.xlen = parsed.xlen
+ testlib.print_log_names = parsed.print_log_names
module = sys.modules[__name__]