protected void check_loaded_library(Inferior inferior, Bfd bfd)
{
if (!Process.MonoRuntimeFound)
{
check_for_mono_runtime(inferior, bfd);
}
}
public Bfd OpenCoreFile(string core_file)
{
Bfd core = new Bfd(os, info, core_file, TargetAddress.Null, true);
core.is_coredump = true;
return(core);
}
void check_for_mono_runtime(Inferior inferior, Bfd bfd)
{
TargetAddress info = bfd.GetSectionAddress(".mdb_debug_info");
if (info.IsNull)
{
return;
}
TargetAddress data = inferior.ReadAddress(info);
if (data.IsNull)
{
//
// See CheckForPendingMonoInit() below - this should only happen when
// the Mono runtime is embedded - for instance Moonlight inside Firefox.
//
// Note that we have to do a symbol lookup for it because we do not know
// whether the mono runtime is recent enough to have this variable.
//
data = bfd.LookupSymbol("MONO_DEBUGGER__using_debugger");
if (data.IsNull)
{
Report.Error("Failed to initialize the Mono runtime!");
return;
}
inferior.WriteInteger(data, 1);
pending_mono_init = info;
return;
}
Process.InitializeMono(inferior, data);
}
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);
}
}
protected CoreFile(ThreadManager manager, ProcessStart start)
: base(manager, start)
{
info = Inferior.GetTargetMemoryInfo(manager.AddressDomain);
bfd = (Bfd)NativeLanguage.OperatingSystem.LoadExecutable(
info, start.TargetApplication, true);
core_file = start.CoreFile;
core_bfd = bfd.OpenCoreFile(core_file);
#if FIXME
string crash_program = core_bfd.CrashProgram;
string[] crash_program_args = crash_program.Split(' ');
if (crash_program_args [0] != application)
{
throw new TargetException(
TargetError.CannotStartTarget,
"Core file (generated from {0}) doesn't match executable {1}.",
crash_program, application);
}
bool ok;
try {
DateTime core_date = Directory.GetLastWriteTime(core_file);
DateTime app_date = Directory.GetLastWriteTime(application);
ok = app_date < core_date;
} catch {
ok = false;
}
if (!ok)
{
throw new TargetException(
TargetError.CannotStartTarget,
"Executable {0} is more recent than core file {1}.",
application, core_file);
}
#endif
read_note_section();
main_thread = (CoreFileThread)threads [0];
TargetMemoryAccess target_access = ((CoreFileThread)threads [0]).TargetAccess;
// bfd.UpdateSharedLibraryInfo (null, target_access);
TargetAddress mdb_debug_info = bfd.GetSectionAddress(".mdb_debug_info");
if (!mdb_debug_info.IsNull)
{
mdb_debug_info = main_thread.ReadAddress(mdb_debug_info);
debugger_info = MonoDebuggerInfo.Create(target_access, mdb_debug_info);
read_thread_table();
CreateMonoLanguage(debugger_info);
mono_language.InitializeCoreFile(target_access);
mono_language.Update(target_access);
}
}
public DwarfFrameReader(Bfd bfd, TargetBlob blob, long vma,
bool is_ehframe)
{
this.bfd = bfd;
this.blob = blob;
this.vma = vma;
this.is_ehframe = is_ehframe;
}
public DwarfFrameReader(Bfd bfd, TargetBlob blob, long vma,
bool is_ehframe)
{
this.bfd = bfd;
this.blob = blob;
this.vma = vma;
this.is_ehframe = is_ehframe;
}
public void CloseBfd(Bfd bfd)
{
if (bfd == null)
{
return;
}
bfd_hash.Remove(bfd.FileName);
bfd.Dispose();
}
protected CoreFile(ThreadManager manager, ProcessStart start)
: base(manager, start)
{
info = Inferior.GetTargetMemoryInfo (manager.AddressDomain);
bfd = (Bfd) NativeLanguage.OperatingSystem.LoadExecutable (
info, start.TargetApplication, true);
core_file = start.CoreFile;
core_bfd = bfd.OpenCoreFile (core_file);
#if FIXME
string crash_program = core_bfd.CrashProgram;
string[] crash_program_args = crash_program.Split (' ');
if (crash_program_args [0] != application)
throw new TargetException (
TargetError.CannotStartTarget,
"Core file (generated from {0}) doesn't match executable {1}.",
crash_program, application);
bool ok;
try {
DateTime core_date = Directory.GetLastWriteTime (core_file);
DateTime app_date = Directory.GetLastWriteTime (application);
ok = app_date < core_date;
} catch {
ok = false;
}
if (!ok)
throw new TargetException (
TargetError.CannotStartTarget,
"Executable {0} is more recent than core file {1}.",
application, core_file);
#endif
read_note_section ();
main_thread = (CoreFileThread) threads [0];
TargetMemoryAccess target_access = ((CoreFileThread) threads [0]).TargetAccess;
// bfd.UpdateSharedLibraryInfo (null, target_access);
TargetAddress mdb_debug_info = bfd.GetSectionAddress (".mdb_debug_info");
if (!mdb_debug_info.IsNull) {
mdb_debug_info = main_thread.ReadAddress (mdb_debug_info);
debugger_info = MonoDebuggerInfo.Create (target_access, mdb_debug_info);
read_thread_table ();
CreateMonoLanguage (debugger_info);
mono_language.InitializeCoreFile (target_access);
mono_language.Update (target_access);
}
}
internal Section(Bfd bfd, IntPtr section)
{
this.bfd = bfd;
this.section = section;
this.name = bfd_glue_get_section_name(section);
this.vma = bfd_glue_get_section_vma(section);
this.size = bfd_glue_get_section_size(section);
this.flags = bfd_glue_get_section_flags(section);
contents = new ObjectCache(
new ObjectCacheFunc(get_section_contents), section, 5);
}
public override NativeExecutableReader LoadExecutable(TargetMemoryInfo memory, string filename,
bool load_native_symtabs)
{
check_disposed ();
Bfd bfd = (Bfd) bfd_hash [filename];
if (bfd != null)
return bfd;
bfd = new Bfd (this, memory, filename, TargetAddress.Null, true);
bfd_hash.Add (filename, bfd);
main_bfd = bfd;
return bfd;
}
void check_for_mono_runtime(Inferior inferior, Bfd bfd)
{
TargetAddress info = bfd.LookupSymbol("MONO_DEBUGGER__debugger_info_ptr");
if (info.IsNull)
{
return;
}
TargetAddress data = inferior.ReadAddress(info);
if (data.IsNull)
{
//
// See CheckForPendingMonoInit() below - this should only happen when
// the Mono runtime is embedded - for instance Moonlight inside Firefox.
//
// Note that we have to do a symbol lookup for it because we do not know
// whether the mono runtime is recent enough to have this variable.
//
data = bfd.LookupSymbol("MONO_DEBUGGER__using_debugger");
if (data.IsNull)
{
Report.Error("Failed to initialize the Mono runtime!");
return;
}
inferior.WriteInteger(data, 1);
pending_mono_init = info;
// Add a breakpoint in mini_debugger_init, to make sure that InitializeMono()
// gets called in time to set the breakpoint at debugger_initialize, needed to
// initialize the notifications.
TargetAddress mini_debugger_init = bfd.LookupSymbol("mini_debugger_init");
if (!mini_debugger_init.IsNull)
{
Instruction insn = inferior.Architecture.ReadInstruction(inferior, mini_debugger_init);
if ((insn == null) || !insn.CanInterpretInstruction)
{
throw new InternalError("Unknown dynlink breakpoint: {0}", mini_debugger_init);
}
DynlinkBreakpoint init_breakpoint = new DynlinkBreakpoint(this, insn);
init_breakpoint.Insert(inferior);
}
return;
}
Process.InitializeMono(inferior, data);
}
public override NativeExecutableReader AddExecutableFile(Inferior inferior, string filename,
TargetAddress base_address, bool step_into,
bool is_loaded)
{
check_disposed ();
Bfd bfd = (Bfd) bfd_hash [filename];
if (bfd != null)
return bfd;
bfd = new Bfd (this, inferior.TargetMemoryInfo, filename, base_address, is_loaded);
bfd_hash.Add (filename, bfd);
check_loaded_library (inferior, bfd);
return bfd;
}
public override NativeExecutableReader LoadExecutable(TargetMemoryInfo memory, string filename,
bool load_native_symtabs)
{
check_disposed();
Bfd bfd = (Bfd)bfd_hash [filename];
if (bfd != null)
{
return(bfd);
}
bfd = new Bfd(this, memory, filename, TargetAddress.Null, true);
bfd_hash.Add(filename, bfd);
main_bfd = bfd;
return(bfd);
}
public override NativeExecutableReader AddExecutableFile(Inferior inferior, string filename,
TargetAddress base_address, bool step_into,
bool is_loaded)
{
check_disposed();
Bfd bfd = (Bfd)bfd_hash [filename];
if (bfd != null)
{
return(bfd);
}
bfd = new Bfd(this, inferior.TargetMemoryInfo, filename, base_address, is_loaded);
bfd_hash.Add(filename, bfd);
check_loaded_library(inferior, bfd);
return(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);
}
public DwarfException(Bfd bfd, string message, params object[] args)
: base(String.Format ("{0}: {1}", bfd.FileName,
String.Format (message, args)))
{
}
public BfdSymbolFile(Bfd bfd)
{
this.Bfd = bfd;
}
public Bfd OpenCoreFile(string core_file)
{
Bfd core = new Bfd (os, info, core_file, TargetAddress.Null, true);
core.is_coredump = true;
return core;
}
public BfdSymbolTable(Bfd bfd)
{
this.bfd = bfd;
}
protected void check_loaded_library(Inferior inferior, Bfd bfd)
{
if (!Process.MonoRuntimeFound)
check_for_mono_runtime (inferior, bfd);
}
internal Section(Bfd bfd, IntPtr section)
{
this.bfd = bfd;
this.section = section;
this.name = bfd_glue_get_section_name (section);
this.vma = bfd_glue_get_section_vma (section);
this.size = bfd_glue_get_section_size (section);
this.flags = bfd_glue_get_section_flags (section);
contents = new ObjectCache (
new ObjectCacheFunc (get_section_contents), section, 5);
}
public BfdSymbolTable(Bfd bfd)
{
this.bfd = bfd;
}
void check_for_mono_runtime(Inferior inferior, Bfd bfd)
{
TargetAddress info = bfd.LookupSymbol ("MONO_DEBUGGER__debugger_info_ptr");
if (info.IsNull)
return;
TargetAddress data = inferior.ReadAddress (info);
if (data.IsNull) {
//
// See CheckForPendingMonoInit() below - this should only happen when
// the Mono runtime is embedded - for instance Moonlight inside Firefox.
//
// Note that we have to do a symbol lookup for it because we do not know
// whether the mono runtime is recent enough to have this variable.
//
data = bfd.LookupSymbol ("MONO_DEBUGGER__using_debugger");
if (data.IsNull) {
Report.Error ("Failed to initialize the Mono runtime!");
return;
}
inferior.WriteInteger (data, 1);
pending_mono_init = info;
// Add a breakpoint in mini_debugger_init, to make sure that InitializeMono()
// gets called in time to set the breakpoint at debugger_initialize, needed to
// initialize the notifications.
TargetAddress mini_debugger_init = bfd.LookupSymbol ("mini_debugger_init");
if (!mini_debugger_init.IsNull)
{
Instruction insn = inferior.Architecture.ReadInstruction (inferior, mini_debugger_init);
if ((insn == null) || !insn.CanInterpretInstruction)
throw new InternalError ("Unknown dynlink breakpoint: {0}", mini_debugger_init);
DynlinkBreakpoint init_breakpoint = new DynlinkBreakpoint (this, insn);
init_breakpoint.Insert (inferior);
}
return;
}
Process.InitializeMono (inferior, data);
}
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);
public BfdSymbolFile(Bfd bfd)
{
this.Bfd = bfd;
}
public static bool IsSupported(Bfd bfd)
{
if ((bfd.Target == "elf32-i386") || (bfd.Target == "elf64-x86-64"))
return bfd.HasSection (".debug_info");
else
return false;
}
public DwarfBinaryReader(Bfd bfd, TargetBlob blob, bool is64bit)
: base(blob)
{
this.bfd = bfd;
this.is64bit = is64bit;
}
public DwarfReader(Bfd bfd, Module module)
{
this.bfd = bfd;
this.module = module;
this.filename = bfd.FileName;
this.target_info = bfd.TargetMemoryInfo;
debug_info_reader = create_reader (".debug_info", false);
DwarfBinaryReader reader = DebugInfoReader;
reader.ReadInitialLength (out is64bit);
int version = reader.ReadInt16 ();
if (version < 2)
throw new DwarfException (
bfd, "Wrong DWARF version: {0}", version);
reader.ReadOffset ();
address_size = reader.ReadByte ();
if ((address_size != 4) && (address_size != 8))
throw new DwarfException (
bfd, "Unknown address size: {0}", address_size);
debug_abbrev_reader = create_reader (".debug_abbrev", false);
debug_line_reader = create_reader (".debug_line", false);
debug_aranges_reader = create_reader (".debug_aranges", true);
debug_pubnames_reader = create_reader (".debug_pubnames", true);
debug_pubtypes_reader = create_reader (".debug_pubtypes", true);
debug_str_reader = create_reader (".debug_str", true);
debug_loc_reader = create_reader (".debug_loc", false);
debug_ranges_reader = create_reader (".debug_ranges", true);
compile_unit_hash = Hashtable.Synchronized (new Hashtable ());
method_source_hash = Hashtable.Synchronized (new Hashtable ());
method_hash = Hashtable.Synchronized (new Hashtable ());
source_file_hash = Hashtable.Synchronized (new Hashtable ());
if (bfd.IsLoaded) {
aranges = ArrayList.Synchronized (read_aranges ());
symtab = new DwarfSymbolTable (this, aranges);
pubnames = read_pubnames ();
// pubtypes = read_pubtypes ();
}
long offset = 0;
while (offset < reader.Size) {
CompileUnitBlock block = new CompileUnitBlock (this, offset);
compile_unit_hash.Add (offset, block);
offset += block.length;
}
}
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);
}
}
public void CloseBfd(Bfd bfd)
{
if (bfd == null)
return;
bfd_hash.Remove (bfd.FileName);
bfd.Dispose ();
public DwarfException(Bfd bfd, string message, Exception inner)
: base(String.Format ("{0}: {1}", bfd.FileName, message), inner)
{
}
void check_for_mono_runtime(Inferior inferior, Bfd bfd)
{
TargetAddress info = bfd.GetSectionAddress (".mdb_debug_info");
if (info.IsNull)
return;
TargetAddress data = inferior.ReadAddress (info);
if (data.IsNull) {
//
// See CheckForPendingMonoInit() below - this should only happen when
// the Mono runtime is embedded - for instance Moonlight inside Firefox.
//
// Note that we have to do a symbol lookup for it because we do not know
// whether the mono runtime is recent enough to have this variable.
//
data = bfd.LookupSymbol ("MONO_DEBUGGER__using_debugger");
if (data.IsNull) {
Report.Error ("Failed to initialize the Mono runtime!");
return;
}
inferior.WriteInteger (data, 1);
pending_mono_init = info;
return;
}
Process.InitializeMono (inferior, data);
}
