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private Insert ( |
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| inferior | ||
| return | void | |
protected MonoThreadManager(Process process, Inferior inferior,
MonoDebuggerInfo debugger_info)
{
this.process = process;
this.debugger_info = debugger_info;
inferior.WriteInteger (debugger_info.UsingMonoDebugger, 1);
notification_bpt = new InitializeBreakpoint (this, debugger_info.Initialize);
notification_bpt.Insert (inferior);
}
void read_dynamic_info(Inferior inferior)
{
if (has_dynlink_info) {
if (!first_link_map.IsNull)
do_update_shlib_info (inferior);
return;
}
TargetAddress debug_base = main_bfd.ReadDynamicInfo (inferior);
if (debug_base.IsNull)
return;
int size = 2 * inferior.TargetLongIntegerSize + 3 * inferior.TargetAddressSize;
TargetReader reader = new TargetReader (inferior.ReadMemory (debug_base, size));
if (reader.ReadLongInteger () != 1)
return;
first_link_map = reader.ReadAddress ();
dynlink_breakpoint_addr = reader.ReadAddress ();
rdebug_state_addr = debug_base + reader.Offset;
if (reader.ReadLongInteger () != 0)
return;
has_dynlink_info = true;
Instruction insn = inferior.Architecture.ReadInstruction (inferior, dynlink_breakpoint_addr);
if ((insn == null) || !insn.CanInterpretInstruction)
throw new InternalError ("Unknown dynlink breakpoint: {0}", dynlink_breakpoint_addr);
dynlink_breakpoint = new DynlinkBreakpoint (this, insn);
dynlink_breakpoint.Insert (inferior);
do_update_shlib_info (inferior);
check_loaded_library (inferior, main_bfd);
}
void read_dynamic_info(Inferior inferior)
{
if (has_dynlink_info) {
if (!dyld_all_image_infos.IsNull)
do_update_shlib_info (inferior);
return;
}
TargetMemoryInfo info = Inferior.GetTargetMemoryInfo (AddressDomain.Global);
Bfd dyld_image = new Bfd (this, info, "/usr/lib/dyld", TargetAddress.Null, true);
dyld_all_image_infos = dyld_image.LookupSymbol("dyld_all_image_infos");
if (dyld_all_image_infos.IsNull)
return;
int size = 2 * inferior.TargetLongIntegerSize + 2 * inferior.TargetAddressSize;
TargetReader reader = new TargetReader (inferior.ReadMemory (dyld_all_image_infos, size));
reader.ReadLongInteger (); // version
reader.ReadLongInteger (); // infoArrayCount
reader.ReadAddress (); // infoArray
TargetAddress dyld_image_notifier = reader.ReadAddress ();
has_dynlink_info = true;
Instruction insn = inferior.Architecture.ReadInstruction (inferior, dyld_image_notifier);
if ((insn == null) || !insn.CanInterpretInstruction)
throw new InternalError ("Unknown dynlink breakpoint: {0}", dyld_image_notifier);
dynlink_breakpoint = new DynlinkBreakpoint (this, insn);
dynlink_breakpoint.Insert (inferior);
do_update_shlib_info (inferior);
check_loaded_library (inferior, main_bfd);
void check_nptl_setxid(Inferior inferior, Bfd bfd)
{
if (setxid_breakpoint != null)
return;
TargetAddress vtable = bfd.LookupSymbol ("__libc_pthread_functions");
if (vtable.IsNull)
return;
/*
* Big big hack to allow debugging gnome-vfs:
* We intercept any calls to __nptl_setxid() and make it
* return 0. This is safe to do since we do not allow
* debugging setuid programs or running as root, so setxid()
* will always be a no-op anyways.
*/
TargetAddress nptl_setxid = inferior.ReadAddress (vtable + 51 * inferior.TargetAddressSize);
if (!nptl_setxid.IsNull) {
setxid_breakpoint = new SetXidBreakpoint (this, nptl_setxid);
setxid_breakpoint.Insert (inferior);
}
}
