lldb/test/API/macosx/unregistered-macho/TestUnregisteredMacho.py

   1 """Test that debugserver will parse a mach-o in inferior memory even if it's not loaded."""
   2
   3 import os
   4 import re
   5 import subprocess
   6
   7 import lldb
   8 from lldbsuite.test.decorators import *
   9 from lldbsuite.test.lldbtest import *
  10 from lldbsuite.test import lldbutil
  11
  12
  13 class TestUnregisteredMacho(TestBase):
  14     # newer debugserver required for jGetLoadedDynamicLibrariesInfos
  15     # to support this
  16     @skipIfOutOfTreeDebugserver
  17     @no_debug_info_test
  18     @skipUnlessDarwin
  19     def test(self):
  20         self.build()
  21         target, process, thread, bkpt = lldbutil.run_to_source_breakpoint(
  22             self, "// break here", lldb.SBFileSpec("main.c")
  23         )
  24
  25         frame = thread.GetFrameAtIndex(0)
  26         macho_buf = frame.GetValueForVariablePath("macho_buf")
  27         macho_addr = macho_buf.GetValueAsUnsigned()
  28         invalid_macho_addr = macho_buf.GetValueAsUnsigned() + 4
  29         gdb_packet = (
  30             "process plugin packet send 'jGetLoadedDynamicLibrariesInfos:{\"solib_addresses\":[%d]}]'"
  31             % macho_addr
  32         )
  33
  34         # Send the jGetLoadedDynamicLibrariesInfos packet
  35         # to debugserver, asking it to parse the mach-o binary
  36         # at this address and give us the UUID etc, even though
  37         # dyld doesn't think there is a binary at that address.
  38         # We won't get a pathname for the binary (from dyld), but
  39         # we will get to the LC_UUID and include that.
  40         self.expect(
  41             gdb_packet,
  42             substrs=['"pathname":""', '"uuid":"1B4E28BA-2FA1-11D2-883F-B9A761BDE3FB"'],
  43         )
  44
  45         no_macho_gdb_packet = (
  46             "process plugin packet send 'jGetLoadedDynamicLibrariesInfos:{\"solib_addresses\":[%d]}]'"
  47             % invalid_macho_addr
  48         )
  49         self.expect(no_macho_gdb_packet, substrs=['response: {"images":[]}'])
  50
  51         # Test that we get back the information for the properly
  52         # formatted Mach-O binary in memory, but do not get an
  53         # entry for the invalid Mach-O address.
  54         both_gdb_packet = (
  55             "process plugin packet send 'jGetLoadedDynamicLibrariesInfos:{\"solib_addresses\":[%d,%d]}]'"
  56             % (macho_addr, invalid_macho_addr)
  57         )
  58         self.expect(both_gdb_packet, substrs=['"load_address":%d,' % macho_addr])
  59         self.expect(
  60             both_gdb_packet,
  61             substrs=['"load_address":%d,' % invalid_macho_addr],
  62             matching=False,
  63         )