tests/tcg/multiarch/gdbstub/sha1.py

   1 from __future__ import print_function
   2 #
   3 # A very simple smoke test for debugging the SHA1 userspace test on
   4 # each target.
   5 #
   6 # This is launched via tests/guest-debug/run-test.py
   7 #
   8
   9 import gdb
  10 import sys
  11
  12 initial_vlen = 0
  13 failcount = 0
  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 def check_break(sym_name):
  25     "Setup breakpoint, continue and check we stopped."
  26     sym, ok = gdb.lookup_symbol(sym_name)
  27     bp = gdb.Breakpoint(sym_name)
  28
  29     gdb.execute("c")
  30
  31     # hopefully we came back
  32     end_pc = gdb.parse_and_eval('$pc')
  33     report(bp.hit_count == 1,
  34            "break @ %s (%s %d hits)" % (end_pc, sym.value(), bp.hit_count))
  35
  36     bp.delete()
  37
  38 def run_test():
  39     "Run through the tests one by one"
  40
  41     check_break("SHA1Init")
  42
  43     # Check step and inspect values. We do a double next after the
  44     # breakpoint as depending on the version of gdb we may step the
  45     # preamble and not the first actual line of source.
  46     gdb.execute("next")
  47     gdb.execute("next")
  48     val_ctx = gdb.parse_and_eval("context->state[0]")
  49     exp_ctx = 0x67452301
  50     report(int(val_ctx) == exp_ctx, "context->state[0] == %x" % exp_ctx);
  51
  52     gdb.execute("next")
  53     val_ctx = gdb.parse_and_eval("context->state[1]")
  54     exp_ctx = 0xEFCDAB89
  55     report(int(val_ctx) == exp_ctx, "context->state[1] == %x" % exp_ctx);
  56
  57     # finally check we don't barf inspecting registers
  58     gdb.execute("info registers")
  59
  60 #
  61 # This runs as the script it sourced (via -x, via run-test.py)
  62 #
  63 try:
  64     inferior = gdb.selected_inferior()
  65     arch = inferior.architecture()
  66     print("ATTACHED: %s" % arch.name())
  67 except (gdb.error, AttributeError):
  68     print("SKIPPING (not connected)", file=sys.stderr)
  69     exit(0)
  70
  71 if gdb.parse_and_eval('$pc') == 0:
  72     print("SKIP: PC not set")
  73     exit(0)
  74
  75 try:
  76     # These are not very useful in scripts
  77     gdb.execute("set pagination off")
  78     gdb.execute("set confirm off")
  79
  80     # Run the actual tests
  81     run_test()
  82 except (gdb.error):
  83     print ("GDB Exception: %s" % (sys.exc_info()[0]))
  84     failcount += 1
  85     pass
  86
  87 print("All tests complete: %d failures" % failcount)
  88 exit(failcount)