tests/tcg/s390x/gdbstub/test-signals-s390x.py

   1 from __future__ import print_function
   2
   3 #
   4 # Test that signals and debugging mix well together on s390x.
   5 #
   6 # This is launched via tests/guest-debug/run-test.py
   7 #
   8
   9 import gdb
  10 import sys
  11
  12 failcount = 0
  13
  14
  15 def report(cond, msg):
  16     """Report success/fail of test"""
  17     if cond:
  18         print("PASS: %s" % (msg))
  19     else:
  20         print("FAIL: %s" % (msg))
  21         global failcount
  22         failcount += 1
  23
  24
  25 def run_test():
  26     """Run through the tests one by one"""
  27     illegal_op = gdb.Breakpoint("illegal_op")
  28     stg = gdb.Breakpoint("stg")
  29     mvc_8 = gdb.Breakpoint("mvc_8")
  30
  31     # Expect the following events:
  32     # 1x illegal_op breakpoint
  33     # 2x stg breakpoint, segv, breakpoint
  34     # 2x mvc_8 breakpoint, segv, breakpoint
  35     for _ in range(14):
  36         gdb.execute("c")
  37     report(illegal_op.hit_count == 1, "illegal_op.hit_count == 1")
  38     report(stg.hit_count == 4, "stg.hit_count == 4")
  39     report(mvc_8.hit_count == 4, "mvc_8.hit_count == 4")
  40
  41     # The test must succeed.
  42     gdb.Breakpoint("_exit")
  43     gdb.execute("c")
  44     status = int(gdb.parse_and_eval("$r2"))
  45     report(status == 0, "status == 0");
  46
  47
  48 #
  49 # This runs as the script it sourced (via -x, via run-test.py)
  50 #
  51 try:
  52     inferior = gdb.selected_inferior()
  53     arch = inferior.architecture()
  54     print("ATTACHED: %s" % arch.name())
  55 except (gdb.error, AttributeError):
  56     print("SKIPPING (not connected)", file=sys.stderr)
  57     exit(0)
  58
  59 if gdb.parse_and_eval("$pc") == 0:
  60     print("SKIP: PC not set")
  61     exit(0)
  62
  63 try:
  64     # Run the actual tests
  65     run_test()
  66 except (gdb.error):
  67     print("GDB Exception: %s" % (sys.exc_info()[0]))
  68     failcount += 1
  69     pass
  70
  71 print("All tests complete: %d failures" % failcount)
  72 exit(failcount)