from __future__ import print_function # # Test the SVE ZReg reports the right amount of data. It uses the # sve-ioctl test and examines the register data each time the # __sve_ld_done breakpoint is hit. # # This is launched via tests/guest-debug/run-test.py # import gdb import sys initial_vlen = 0 failcount = 0 def report(cond, msg): "Report success/fail of test" if cond: print ("PASS: %s" % (msg)) else: print ("FAIL: %s" % (msg)) global failcount failcount += 1 class TestBreakpoint(gdb.Breakpoint): def __init__(self, sym_name="__sve_ld_done"): super(TestBreakpoint, self).__init__(sym_name) # self.sym, ok = gdb.lookup_symbol(sym_name) def stop(self): val_i = gdb.parse_and_eval('i') global initial_vlen try: for i in range(0, int(val_i)): val_z = gdb.parse_and_eval("$z0.b.u[%d]" % i) report(int(val_z) == i, "z0.b.u[%d] == %d" % (i, i)) for i in range(i + 1, initial_vlen): val_z = gdb.parse_and_eval("$z0.b.u[%d]" % i) report(int(val_z) == 0, "z0.b.u[%d] == 0" % (i)) except gdb.error: report(False, "checking zregs (out of range)") # Check the aliased V registers are set and GDB has correctly # created them for us having recognised and handled SVE. try: for i in range(0, 16): val_z = gdb.parse_and_eval("$z0.b.u[%d]" % i) val_v = gdb.parse_and_eval("$v0.b.u[%d]" % i) report(int(val_z) == int(val_v), "v0.b.u[%d] == z0.b.u[%d]" % (i, i)) except gdb.error: report(False, "checking vregs (out of range)") def run_test(): "Run through the tests one by one" print ("Setup breakpoint") bp = TestBreakpoint() global initial_vlen vg = gdb.parse_and_eval("$vg") initial_vlen = int(vg) * 8 gdb.execute("c") # # This runs as the script it sourced (via -x, via run-test.py) # try: inferior = gdb.selected_inferior() arch = inferior.architecture() report(arch.name() == "aarch64", "connected to aarch64") except (gdb.error, AttributeError): print("SKIPPING (not connected)", file=sys.stderr) exit(0) try: # Run the actual tests run_test() except: print ("GDB Exception: %s" % (sys.exc_info()[0])) failcount += 1 import code code.InteractiveConsole(locals=globals()).interact() raise print("All tests complete: %d failures" % failcount) exit(failcount)