import testlib
from testlib import assertEqual, assertNotEqual, assertIn, assertNotIn
from testlib import assertGreater, assertRegexpMatches, assertLess
-from testlib import GdbTest, GdbSingleHartTest, TestFailed, assertTrue
+from testlib import GdbTest, GdbSingleHartTest, TestFailed
+#from testlib import assertTrue
MSTATUS_UIE = 0x00000001
MSTATUS_SIE = 0x00000002
def test(self):
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):
assertEqual(self.gdb.p("sizeof(%s)" % data_type), size)
value = self.gdb.p("$x%d" % n)
assertEqual(value, hart.index * 0x800 + n - 1)
-class MulticoreRunHaltStepiTest(GdbTest):
+#class MulticoreRunHaltStepiTest(GdbTest):
+# compile_args = ("programs/multicore.c", "-DMULTICORE")
+#
+# def early_applicable(self):
+# return len(self.target.harts) > 1
+#
+# def setup(self):
+# self.gdb.load()
+# for hart in self.target.harts:
+# self.gdb.select_hart(hart)
+# self.gdb.p("$mhartid")
+# self.gdb.p("$pc=_start")
+#
+# def test(self):
+# previous_hart_count = [0 for h in self.target.harts]
+# previous_interrupt_count = [0 for h in self.target.harts]
+# # Check 10 times
+# for i in range(10):
+# # 3 attempts for each time we want the check to pass
+# for attempt in range(3):
+# self.gdb.global_command("echo round %d attempt %d\\n" % (i,
+# attempt))
+# self.gdb.c_all(wait=False)
+# time.sleep(2)
+# self.gdb.interrupt_all()
+# hart_count = self.gdb.p("hart_count")
+# interrupt_count = self.gdb.p("interrupt_count")
+# ok = True
+# for i, h in enumerate(self.target.harts):
+# if hart_count[i] <= previous_hart_count[i]:
+# ok = False
+# break
+# if interrupt_count[i] <= previous_interrupt_count[i]:
+# ok = False
+# break
+# self.gdb.p("$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 MulticoreRtosSwitchActiveHartTest(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("$pc=_start")
+
+ def test(self):
+ if self.gdb.one_hart_per_gdb():
+ return 'not_applicable'
+
+ # Set breakpoint near '_start' label to increase the chances of a
+ # situation when all harts hit breakpoint immediately and
+ # simultaneously.
+ self.gdb.b("set_trap_handler")
+
+ # Check that all harts hit breakpoint one by one.
+ for _ in range(len(self.target.harts)):
+ output = self.gdb.c()
+ assertIn("hit Breakpoint", output)
+ assertIn("set_trap_handler", output)
+ assertNotIn("received signal SIGTRAP", output)
+
+class StepTest(GdbSingleHartTest):
compile_args = ("programs/step.S", )
def setup(self):
pc = self.gdb.p("$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("$pc"), [write_loop, write_loop + 4])
assertIn("clear_triggers", output)
self.check_triggers((1<<6) | (1<<0), 0xfeedac00)
-class RegsTest(GdbTest):
+class RegsTest(GdbSingleHartTest):
compile_args = ("programs/regs.S", )
def setup(self):
self.gdb.load()
self.binary = self.target.compile(self.hart, self.download_c.name,
"programs/checksum.c")
- self.gdb.command("file %s" % self.binary)
+ self.gdb.global_command("file %s" % self.binary)
def test(self):
self.gdb.load()
+ self.parkOtherHarts()
self.gdb.command("b _exit")
- self.gdb.c(timeout=60)
+ self.gdb.c()
assertEqual(self.gdb.p("status"), self.crc)
os.unlink(self.download_c.name)
-#class MprvTest(GdbTest):
+#class MprvTest(GdbSingleHartTest):
# compile_args = ("programs/mprv.S", )
# def setup(self):
# self.gdb.load()
# output = self.gdb.command("p/x *(int*)(((char*)&data)-0x80000000)")
# assertIn("0xbead", output)
-class PrivTest(GdbTest):
+class PrivTest(GdbSingleHartTest):
compile_args = ("programs/priv.S", )
def setup(self):
# pylint: disable=attribute-defined-outside-init
"""Test reading/writing priv."""
# Disable physical memory protection by allowing U mode access to all
# memory.
- self.gdb.p("$pmpcfg0=0xf") # TOR, R, W, X
- self.gdb.p("$pmpaddr0=0x%x" %
- ((self.hart.ram + self.hart.ram_size) >> 2))
+ try:
+ self.gdb.p("$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.
if privilege in self.supported:
assertEqual(actual, privilege)
-class PrivChange(PrivTest):
- def test(self):
- """Test that the core's privilege level actually changes."""
-
- if 0 not in self.supported:
- return 'not_applicable'
-
- self.gdb.b("main")
- self.gdb.c()
-
- # Machine mode
- self.gdb.p("$priv=3")
- main_address = self.gdb.p("$pc")
- self.gdb.stepi()
- assertEqual("%x" % self.gdb.p("$pc"), "%x" % (main_address+4))
-
- # User mode
- self.gdb.p("$priv=0")
- self.gdb.stepi()
- # Should have taken an exception, so be nowhere near main.
- pc = self.gdb.p("$pc")
- assertTrue(pc < main_address or pc > main_address + 0x100)
+# XXX temporarily disabling this test
+#class PrivChange(PrivTest):
+# def test(self):
+# """Test that the core's privilege level actually changes."""
+#
+# if 0 not in self.supported:
+# return 'not_applicable'
+#
+# self.gdb.b("main")
+# self.gdb.c()
+#
+# # Machine mode
+# self.gdb.p("$priv=3")
+# main_address = self.gdb.p("$pc")
+# self.gdb.stepi()
+# assertEqual("%x" % self.gdb.p("$pc"), "%x" % (main_address+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")
+# assertTrue(pc < main_address or pc > main_address + 0x100)
parsed = None
def main():