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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:
# These are not very useful in scripts
gdb.execute("set pagination off")
# 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)
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