def get_debug_info(self):
# Get the information from EFI_DEBUG_IMAGE_INFO_TABLE_HEADER
count = self.ec.getMemoryService().readMemory32(self.base + 0x4)
if edk2_debugger.is_aarch64(self.ec):
debug_info_table_base = self.ec.getMemoryService().readMemory64(self.base + 0x8)
else:
debug_info_table_base = self.ec.getMemoryService().readMemory32(self.base + 0x8)
self.DebugInfos = []
for i in range(0, count):
# Get the address of the structure EFI_DEBUG_IMAGE_INFO
if edk2_debugger.is_aarch64(self.ec):
debug_info = self.ec.getMemoryService().readMemory64(debug_info_table_base + (i * 8))
else:
debug_info = self.ec.getMemoryService().readMemory32(debug_info_table_base + (i * 4))
if debug_info:
debug_info_type = self.ec.getMemoryService().readMemory32(debug_info)
# Normal Debug Info Type
if debug_info_type == 1:
if edk2_debugger.is_aarch64(self.ec):
# Get the base address of the structure EFI_LOADED_IMAGE_PROTOCOL
loaded_image_protocol = self.ec.getMemoryService().readMemory64(debug_info + 0x8)
image_base = self.ec.getMemoryService().readMemory64(loaded_image_protocol + 0x40)
image_size = self.ec.getMemoryService().readMemory32(loaded_image_protocol + 0x48)
else:
# Get the base address of the structure EFI_LOADED_IMAGE_PROTOCOL
loaded_image_protocol = self.ec.getMemoryService().readMemory32(debug_info + 0x4)
image_base = self.ec.getMemoryService().readMemory32(loaded_image_protocol + 0x20)
image_size = self.ec.getMemoryService().readMemory32(loaded_image_protocol + 0x28)
self.DebugInfos.append((image_base,image_size))
def get_configuration_table(self, conf_table_guid):
if edk2_debugger.is_aarch64(self.ec):
# Number of configuration Table entry
conf_table_entry_count = self.ec.getMemoryService().readMemory32(
self.system_table_base + 0x68)
# Get location of the Configuration Table entries
conf_table_offset = self.ec.getMemoryService().readMemory64(
self.system_table_base + 0x70)
else:
# Number of configuration Table entry
conf_table_entry_count = self.ec.getMemoryService().readMemory32(
self.system_table_base + 0x40)
# Get location of the Configuration Table entries
conf_table_offset = self.ec.getMemoryService().readMemory32(
self.system_table_base + 0x44)
for i in range(0, conf_table_entry_count):
if edk2_debugger.is_aarch64(self.ec):
offset = conf_table_offset + (i * 0x18)
else:
offset = conf_table_offset + (i * 0x14)
guid = struct.unpack(
"<IIII",
self.ec.getMemoryService().read(str(offset), 16, 32))
if guid == conf_table_guid:
if edk2_debugger.is_aarch64(self.ec):
return self.ec.getMemoryService().readMemory64(offset +
0x10)
else:
return self.ec.getMemoryService().readMemory32(offset +
0x10)
raise Exception('SystemTable', 'Configuration Table not found')
def get_configuration_table(self, conf_table_guid):
if edk2_debugger.is_aarch64(self.ec):
# Number of configuration Table entry
conf_table_entry_count = self.ec.getMemoryService().readMemory32(self.system_table_base + 0x68)
# Get location of the Configuration Table entries
conf_table_offset = self.ec.getMemoryService().readMemory64(self.system_table_base + 0x70)
else:
# Number of configuration Table entry
conf_table_entry_count = self.ec.getMemoryService().readMemory32(self.system_table_base + 0x40)
# Get location of the Configuration Table entries
conf_table_offset = self.ec.getMemoryService().readMemory32(self.system_table_base + 0x44)
for i in range(0, conf_table_entry_count):
if edk2_debugger.is_aarch64(self.ec):
offset = conf_table_offset + (i * 0x18)
else:
offset = conf_table_offset + (i * 0x14)
guid = struct.unpack("<IIII", self.ec.getMemoryService().read(str(offset), 16, 32))
if guid == conf_table_guid:
if edk2_debugger.is_aarch64(self.ec):
return self.ec.getMemoryService().readMemory64(offset + 0x10)
else:
return self.ec.getMemoryService().readMemory32(offset + 0x10)
raise Exception('SystemTable','Configuration Table not found')
def get_debug_info(self):
# Get the information from EFI_DEBUG_IMAGE_INFO_TABLE_HEADER
count = self.ec.getMemoryService().readMemory32(self.base + 0x4)
if edk2_debugger.is_aarch64(self.ec):
debug_info_table_base = self.ec.getMemoryService().readMemory64(self.base + 0x8)
else:
debug_info_table_base = self.ec.getMemoryService().readMemory32(self.base + 0x8)
self.DebugInfos = []
for i in range(0, count):
# Get the address of the structure EFI_DEBUG_IMAGE_INFO
if edk2_debugger.is_aarch64(self.ec):
debug_info = self.ec.getMemoryService().readMemory64(debug_info_table_base + (i * 8))
else:
debug_info = self.ec.getMemoryService().readMemory32(debug_info_table_base + (i * 4))
if debug_info:
debug_info_type = self.ec.getMemoryService().readMemory32(debug_info)
# Normal Debug Info Type
if debug_info_type == 1:
if edk2_debugger.is_aarch64(self.ec):
# Get the base address of the structure EFI_LOADED_IMAGE_PROTOCOL
loaded_image_protocol = self.ec.getMemoryService().readMemory64(debug_info + 0x8)
image_base = self.ec.getMemoryService().readMemory64(loaded_image_protocol + 0x40)
image_size = self.ec.getMemoryService().readMemory32(loaded_image_protocol + 0x48)
else:
# Get the base address of the structure EFI_LOADED_IMAGE_PROTOCOL
loaded_image_protocol = self.ec.getMemoryService().readMemory32(debug_info + 0x4)
image_base = self.ec.getMemoryService().readMemory32(loaded_image_protocol + 0x20)
image_size = self.ec.getMemoryService().readMemory32(loaded_image_protocol + 0x28)
self.DebugInfos.append((image_base,image_size))
def load_symbols_at(self, addr, verbose=False):
if self.DebugInfos == []:
self.get_debug_info()
found = False
for debug_info in self.DebugInfos:
if (addr >= debug_info[0]) and (addr <
debug_info[0] + debug_info[1]):
if edk2_debugger.is_aarch64(self.ec):
section = firmware_volume.EfiSectionPE64(
self.ec, debug_info[0])
else:
section = firmware_volume.EfiSectionPE32(
self.ec, debug_info[0])
try:
edk2_debugger.load_symbol_from_file(
self.ec, section.get_debug_filepath(),
section.get_debug_elfbase(), verbose)
except Exception, (ErrorClass, ErrorMessage):
if verbose:
print "Error while loading a symbol file (%s: %s)" % (
ErrorClass, ErrorMessage)
found = True
return debug_info
def __init__(self, ec, membase, memsize):
self.membase = membase
self.memsize = memsize
self.ec = ec
found = False
# Start from the top of the memory
offset = self.membase + self.memsize
# Align to highest 4MB boundary
offset = offset & ~0x3FFFFF
# We should not have a System Table at the top of the System Memory
offset = offset - 0x400000
# Start at top and look on 4MB boundaries for system table ptr structure
while offset > self.membase:
try:
signature = struct.unpack("cccccccc", self.ec.getMemoryService().read(str(offset), 8, 32))
except DebugException:
raise Exception('SystemTable','Fail to access System Memory. Ensure all the memory in the region [0x%x;0x%X] is accessible.' % (membase,membase+memsize))
if signature == SystemTable.CONST_ST_SIGNATURE:
found = True
if edk2_debugger.is_aarch64(self.ec):
self.system_table_base = self.ec.getMemoryService().readMemory64(offset + 0x8)
else:
self.system_table_base = self.ec.getMemoryService().readMemory32(offset + 0x8)
break
offset = offset - 0x400000
if not found:
raise Exception('SystemTable','System Table not found in System Memory [0x%x;0x%X]' % (membase,membase+memsize))
def __init__(self, ec, membase, memsize):
self.membase = membase
self.memsize = memsize
self.ec = ec
found = False
# Start from the top of the memory
offset = self.membase + self.memsize
# Align to highest 4MB boundary
offset = offset & ~0x3FFFFF
# We should not have a System Table at the top of the System Memory
offset = offset - 0x400000
# Start at top and look on 4MB boundaries for system table ptr structure
while offset > self.membase:
try:
signature = struct.unpack("cccccccc", self.ec.getMemoryService().read(str(offset), 8, 32))
except DebugException:
raise Exception('SystemTable','Fail to access System Memory. Ensure all the memory in the region [0x%x;0x%X] is accessible.' % (membase,membase+memsize))
if signature == SystemTable.CONST_ST_SIGNATURE:
found = True
if edk2_debugger.is_aarch64(self.ec):
self.system_table_base = self.ec.getMemoryService().readMemory64(offset + 0x8)
else:
self.system_table_base = self.ec.getMemoryService().readMemory32(offset + 0x8)
break
offset = offset - 0x400000
if not found:
raise Exception('SystemTable','System Table not found in System Memory [0x%x;0x%X]' % (membase,membase+memsize))
def dump(self):
self.get_debug_info()
for debug_info in self.DebugInfos:
base_pe32 = debug_info[0]
if edk2_debugger.is_aarch64(self.ec):
section = firmware_volume.EfiSectionPE64(self.ec, base_pe32)
else:
section = firmware_volume.EfiSectionPE32(self.ec, base_pe32)
print section.get_debug_filepath()
def dump(self):
self.get_debug_info()
for debug_info in self.DebugInfos:
base_pe32 = debug_info[0]
if edk2_debugger.is_aarch64(self.ec):
section = firmware_volume.EfiSectionPE64(self.ec, base_pe32)
else:
section = firmware_volume.EfiSectionPE32(self.ec, base_pe32)
print section.get_debug_filepath()
def load_all_symbols(self, verbose = False):
if self.DebugInfos == []:
self.get_debug_info()
for debug_info in self.DebugInfos:
if edk2_debugger.is_aarch64(self.ec):
section = firmware_volume.EfiSectionPE64(self.ec, debug_info[0])
else:
section = firmware_volume.EfiSectionPE32(self.ec, debug_info[0])
try:
edk2_debugger.load_symbol_from_file(self.ec, section.get_debug_filepath(), section.get_debug_elfbase(), verbose)
except Exception, (ErrorClass, ErrorMessage):
if verbose:
print "Error while loading a symbol file (%s: %s)" % (ErrorClass, ErrorMessage)
