internal void InitializeThreads(Inferior inferior)
{
TargetAddress ptr = inferior.ReadAddress(MonoDebuggerInfo.ThreadTable);
while (!ptr.IsNull)
{
int size;
if (MonoDebuggerInfo.CheckRuntimeVersion(81, 3))
{
size = 60 + inferior.TargetMemoryInfo.TargetAddressSize;
}
else
{
size = 32 + inferior.TargetMemoryInfo.TargetAddressSize;
}
TargetReader reader = new TargetReader(inferior.ReadMemory(ptr, size));
long tid = reader.ReadLongInteger();
TargetAddress lmf_addr = reader.ReadAddress();
TargetAddress end_stack = reader.ReadAddress();
TargetAddress extended_notifications_addr = ptr + 24;
if (inferior.TargetMemoryInfo.TargetAddressSize == 4)
{
tid &= 0x00000000ffffffffL;
}
reader.Offset += 8;
ptr = reader.ReadAddress();
ThreadFlags flags = ThreadFlags.None;
if (MonoDebuggerInfo.CheckRuntimeVersion(81, 3))
{
reader.Offset = 56 + inferior.TargetAddressSize;
flags = (ThreadFlags)reader.ReadInteger();
}
bool found = false;
foreach (SingleSteppingEngine engine in process.Engines)
{
if (engine.TID != tid)
{
continue;
}
engine.SetManagedThreadData(lmf_addr, extended_notifications_addr);
engine.OnManagedThreadCreated(end_stack);
check_thread_flags(engine, flags);
found = true;
break;
}
if (!found)
{
Report.Error("Cannot find thread {0:x} in {1}",
tid, process.ProcessStart.CommandLine);
}
}
}
void do_update_shlib_info(Inferior inferior)
{
// if (Process.MonoRuntimeFound)
// return;
if (!dyld_all_image_infos.IsNull)
{
int size = 2 * inferior.TargetLongIntegerSize + 2 * inferior.TargetAddressSize;
TargetReader reader = new TargetReader(inferior.ReadMemory(dyld_all_image_infos, size));
reader.ReadLongInteger(); // version
int infoArrayCount = (int)reader.ReadLongInteger();
TargetAddress infoArray = reader.ReadAddress();
size = infoArrayCount * (inferior.TargetLongIntegerSize + 2 * inferior.TargetAddressSize);
reader = new TargetReader(inferior.ReadMemory(infoArray, size));
Console.Write("Loading symbols for shared libraries:");
for (int i = 0; i < infoArrayCount; i++)
{
TargetAddress imageLoadAddress = reader.ReadAddress();
TargetAddress imageFilePath = reader.ReadAddress();
reader.ReadLongInteger(); //imageFileModDate
string name = inferior.ReadString(imageFilePath);
if (name == null)
{
continue;
}
if (bfd_hash.Contains(name))
{
continue;
}
try {
Console.Write(".");
AddExecutableFile(inferior, name, imageLoadAddress /*TargetAddress.Null*/, false, true);
}
catch (SymbolTableException e)
{
Console.WriteLine("Unable to load binary for " + name);
bfd_hash.Add(name, null);
}
}
Console.WriteLine("");
}
}
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 do_update_shlib_info(Inferior inferior)
{
bool first = true;
TargetAddress map = first_link_map;
while (!map.IsNull)
{
int the_size = 4 * inferior.TargetAddressSize;
TargetReader map_reader = new TargetReader(inferior.ReadMemory(map, the_size));
TargetAddress l_addr = map_reader.ReadAddress();
TargetAddress l_name = map_reader.ReadAddress();
map_reader.ReadAddress();
string name;
try {
name = inferior.ReadString(l_name);
// glibc 2.3.x uses the empty string for the virtual
// "linux-gate.so.1".
if ((name != null) && (name == ""))
{
name = null;
}
} catch {
name = null;
}
map = map_reader.ReadAddress();
if (first)
{
first = false;
continue;
}
if (name == null)
{
continue;
}
if (bfd_hash.Contains(name))
{
continue;
}
bool step_into = Process.ProcessStart.LoadNativeSymbolTable;
AddExecutableFile(inferior, name, l_addr, step_into, true);
}
}
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);
}
internal void InitializeThreads(Inferior inferior)
{
TargetAddress ptr = inferior.ReadAddress (MonoDebuggerInfo.ThreadTable);
while (!ptr.IsNull) {
int size;
if (MonoDebuggerInfo.CheckRuntimeVersion (81, 3))
size = 60 + inferior.TargetMemoryInfo.TargetAddressSize;
else
size = 32 + inferior.TargetMemoryInfo.TargetAddressSize;
TargetReader reader = new TargetReader (inferior.ReadMemory (ptr, size));
long tid = reader.ReadLongInteger ();
TargetAddress lmf_addr = reader.ReadAddress ();
TargetAddress end_stack = reader.ReadAddress ();
TargetAddress extended_notifications_addr = ptr + 24;
if (inferior.TargetMemoryInfo.TargetAddressSize == 4)
tid &= 0x00000000ffffffffL;
reader.Offset += 8;
ptr = reader.ReadAddress ();
ThreadFlags flags = ThreadFlags.None;
if (MonoDebuggerInfo.CheckRuntimeVersion (81, 3)) {
reader.Offset = 56 + inferior.TargetAddressSize;
flags = (ThreadFlags) reader.ReadInteger ();
}
bool found = false;
foreach (SingleSteppingEngine engine in process.Engines) {
if (engine.TID != tid)
continue;
engine.SetManagedThreadData (lmf_addr, extended_notifications_addr);
engine.OnManagedThreadCreated (end_stack);
check_thread_flags (engine, flags);
found = true;
break;
}
if (!found)
Report.Error ("Cannot find thread {0:x} in {1}",
tid, process.ProcessStart.CommandLine);
}
}
