LXR qemu/tests/tcg/multiarch/gdbstub/sha1.py

   1from __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
   9import gdb
  10import sys
  11
  12initial_vlen = 0
  13failcount = 0
  14
  15def 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
  24def 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('$pc')
  33    report(bp.hit_count == 1,
  34           "break @ %s (%s %d hits)" % (end_pc, sym.value(), bp.hit_count))
  35
  36    bp.delete()
  37
  38def run_test():
  39    "Run through the tests one by one"
  40
  41    check_break("SHA1Init")
  42
  43    # Check step and inspect values. We do a double next after the
  44    # breakpoint as depending on the version of gdb we may step the
  45    # preamble and not the first actual line of source.
  46    gdb.execute("next")
  47    gdb.execute("next")
  48    val_ctx = gdb.parse_and_eval("context->state[0]")
  49    exp_ctx = 0x67452301
  50    report(int(val_ctx) == exp_ctx, "context->state[0] == %x" % exp_ctx);
  51
  52    gdb.execute("next")
  53    val_ctx = gdb.parse_and_eval("context->state[1]")
  54    exp_ctx = 0xEFCDAB89
  55    report(int(val_ctx) == exp_ctx, "context->state[1] == %x" % exp_ctx);
  56
  57    # finally check we don't barf inspecting registers
  58    gdb.execute("info registers")
  59
  60#
  61# This runs as the script it sourced (via -x, via run-test.py)
  62#
  63try:
  64    inferior = gdb.selected_inferior()
  65    arch = inferior.architecture()
  66    print("ATTACHED: %s" % arch.name())
  67except (gdb.error, AttributeError):
  68    print("SKIPPING (not connected)", file=sys.stderr)
  69    exit(0)
  70
  71if gdb.parse_and_eval('$pc') == 0:
  72    print("SKIP: PC not set")
  73    exit(0)
  74
  75try:
  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()
  82except (gdb.error):
  83    print ("GDB Exception: %s" % (sys.exc_info()[0]))
  84    failcount += 1
  85    pass
  86
  87print("All tests complete: %d failures" % failcount)
  88exit(failcount)
  89