mirror of https://github.com/acidanthera/audk.git
140 lines
6.1 KiB
Python
140 lines
6.1 KiB
Python
#
|
|
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
|
|
#
|
|
# This program and the accompanying materials
|
|
# are licensed and made available under the terms and conditions of the BSD License
|
|
# which accompanies this distribution. The full text of the license may be found at
|
|
# http://opensource.org/licenses/bsd-license.php
|
|
#
|
|
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
#
|
|
|
|
from arm_ds.debugger_v1 import DebugException
|
|
|
|
import struct
|
|
|
|
import edk2_debugger
|
|
import firmware_volume
|
|
|
|
class DebugInfoTable:
|
|
CONST_DEBUG_INFO_TABLE_GUID = ( 0x49152E77L, 0x47641ADAL, 0xFE7AA2B7L, 0x8B5ED9FEL)
|
|
|
|
DebugInfos = []
|
|
|
|
def __init__(self, ec, debug_info_table_header_offset):
|
|
self.ec = ec
|
|
self.base = debug_info_table_header_offset
|
|
|
|
def get_debug_info(self):
|
|
count = self.ec.getMemoryService().readMemory32(self.base + 0x4)
|
|
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
|
|
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:
|
|
# 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))
|
|
|
|
# Return (base, 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]):
|
|
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)
|
|
pass
|
|
|
|
found = True
|
|
return debug_info
|
|
|
|
if found == False:
|
|
raise Exception('DebugInfoTable','No symbol found at 0x%x' % addr)
|
|
|
|
def load_all_symbols(self, verbose = False):
|
|
if self.DebugInfos == []:
|
|
self.get_debug_info()
|
|
|
|
for debug_info in self.DebugInfos:
|
|
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)
|
|
pass
|
|
|
|
def dump(self):
|
|
self.get_debug_info()
|
|
for debug_info in self.DebugInfos:
|
|
base_pe32 = debug_info[0]
|
|
section = firmware_volume.EfiSectionPE32(self.ec, base_pe32)
|
|
print section.get_debug_filepath()
|
|
|
|
class SystemTable:
|
|
CONST_ST_SIGNATURE = ('I','B','I',' ','S','Y','S','T')
|
|
|
|
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
|
|
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 get_configuration_table(self, conf_table_guid):
|
|
# 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):
|
|
offset = conf_table_offset + (i * 0x14)
|
|
guid = struct.unpack("<IIII", self.ec.getMemoryService().read(str(offset), 16, 32))
|
|
if guid == conf_table_guid:
|
|
return self.ec.getMemoryService().readMemory32(offset + 0x10)
|
|
|
|
raise Exception('SystemTable','Configuration Table not found')
|