#\r
# Copyright (c) 2011-2013, ARM Limited. All rights reserved.\r
-# \r
-# This program and the accompanying materials \r
-# are licensed and made available under the terms and conditions of the BSD License \r
-# which accompanies this distribution. The full text of the license may be found at \r
-# http://opensource.org/licenses/bsd-license.php \r
#\r
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+# This program and the accompanying materials\r
+# are licensed and made available under the terms and conditions of the BSD License\r
+# which accompanies this distribution. The full text of the license may be found at\r
+# http://opensource.org/licenses/bsd-license.php\r
+#\r
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#\r
\r
from arm_ds.debugger_v1 import DebugException\r
import string\r
\r
import edk2_debugger\r
- \r
+\r
class EfiFileSection(object):\r
EFI_SECTION_PE32 = 0x10\r
EFI_SECTION_PIC = 0x11\r
EFI_SECTION_TE = 0x12\r
- \r
+\r
EFI_IMAGE_DEBUG_TYPE_CODEVIEW = 0x2\r
- \r
+\r
SIZEOF_EFI_FFS_FILE_HEADER = 0x28\r
\r
def __init__(self, ec, base):\r
self.base = base\r
self.ec = ec\r
- \r
+\r
def __str__(self):\r
return "FileSection(type:0x%X, size:0x%x)" % (self.get_type(), self.get_size())\r
- \r
+\r
def get_base(self):\r
return self.base\r
- \r
+\r
def get_type(self):\r
return struct.unpack("B", self.ec.getMemoryService().read(self.base + 0x3, 1, 8))[0]\r
- \r
+\r
def get_size(self):\r
return (struct.unpack("<I", self.ec.getMemoryService().read(self.base, 4, 32))[0] & 0x00ffffff)\r
\r
class EfiSectionTE:\r
SIZEOF_EFI_TE_IMAGE_HEADER = 0x28\r
EFI_TE_IMAGE_SIGNATURE = ('V','Z')\r
- \r
+\r
def __init__(self, ec, base_te):\r
self.ec = ec\r
self.base_te = int(base_te)\r
te_sig = struct.unpack("cc", self.ec.getMemoryService().read(self.base_te, 2, 32))\r
if te_sig != EfiSectionTE.EFI_TE_IMAGE_SIGNATURE:\r
raise Exception("EfiFileSectionTE","TE Signature incorrect")\r
- \r
+\r
def get_debug_filepath(self):\r
stripped_size = struct.unpack("<H", self.ec.getMemoryService().read(self.base_te + 0x6, 2, 32))[0]\r
stripped_size -= EfiSectionTE.SIZEOF_EFI_TE_IMAGE_HEADER\r
- \r
+\r
debug_dir_entry_rva = self.ec.getMemoryService().readMemory32(self.base_te + 0x20)\r
if debug_dir_entry_rva == 0:\r
raise Exception("EfiFileSectionTE","No debug directory for image")\r
debug_dir_entry_rva -= stripped_size\r
- \r
+\r
debug_type = self.ec.getMemoryService().readMemory32(self.base_te + debug_dir_entry_rva + 0xC)\r
if (debug_type != 0xdf) and (debug_type != EfiFileSection.EFI_IMAGE_DEBUG_TYPE_CODEVIEW):\r
raise Exception("EfiFileSectionTE","Debug type is not dwarf")\r
dwarf_sig = struct.unpack("cccc", self.ec.getMemoryService().read(self.base_te + debug_rva, 4, 32))\r
if (dwarf_sig != 0x66727764) and (dwarf_sig != FirmwareFile.CONST_NB10_SIGNATURE):\r
raise Exception("EfiFileSectionTE","Dwarf debug signature not found")\r
- \r
+\r
if dwarf_sig == 0x66727764:\r
filename = self.base_te + debug_rva + 0xc\r
else:\r
filename = self.base_te + debug_rva + 0x10\r
filename = struct.unpack("200s", self.ec.getMemoryService().read(filename, 200, 32))[0]\r
return filename[0:string.find(filename,'\0')]\r
- \r
+\r
def get_debug_elfbase(self):\r
stripped_size = struct.unpack("<H", self.ec.getMemoryService().read(self.base_te + 0x6, 2, 32))[0]\r
stripped_size -= EfiSectionTE.SIZEOF_EFI_TE_IMAGE_HEADER\r
- \r
- base_of_code = self.ec.getMemoryService().readMemory32(self.base_te + 0xC)\r
- \r
- return self.base_te + base_of_code - stripped_size\r
+\r
+ return self.base_te - stripped_size\r
\r
class EfiSectionPE32:\r
def __init__(self, ec, base_pe32):\r
debug_type = self.ec.getMemoryService().readMemory32(self.base_pe32 + debug_dir_entry_rva + 0xC)\r
if (debug_type != 0xdf) and (debug_type != EfiFileSection.EFI_IMAGE_DEBUG_TYPE_CODEVIEW):\r
raise Exception("EfiFileSectionPE32","Debug type is not dwarf")\r
- \r
- \r
+\r
+\r
debug_rva = self.ec.getMemoryService().readMemory32(self.base_pe32 + debug_dir_entry_rva + 0x14)\r
- \r
+\r
dwarf_sig = struct.unpack("cccc", self.ec.getMemoryService().read(str(self.base_pe32 + debug_rva), 4, 32))\r
if (dwarf_sig != 0x66727764) and (dwarf_sig != FirmwareFile.CONST_NB10_SIGNATURE):\r
raise Exception("EfiFileSectionPE32","Dwarf debug signature not found")\r
- \r
+\r
if dwarf_sig == 0x66727764:\r
filename = self.base_pe32 + debug_rva + 0xc\r
else:\r
filename = self.base_pe32 + debug_rva + 0x10\r
filename = struct.unpack("200s", self.ec.getMemoryService().read(str(filename), 200, 32))[0]\r
return filename[0:string.find(filename,'\0')]\r
- \r
+\r
def get_debug_elfbase(self):\r
- # Offset from dos hdr to PE file hdr\r
- pe_file_header = self.base_pe32 + self.ec.getMemoryService().readMemory32(self.base_pe32 + 0x3C)\r
- \r
- base_of_code = self.base_pe32 + self.ec.getMemoryService().readMemory32(pe_file_header + 0x28)\r
- base_of_data = self.base_pe32 + self.ec.getMemoryService().readMemory32(pe_file_header + 0x2C)\r
- \r
- if (base_of_code < base_of_data) and (base_of_code != 0):\r
- return base_of_code\r
+ return self.base_pe32\r
+\r
+class EfiSectionPE64:\r
+ def __init__(self, ec, base_pe64):\r
+ self.ec = ec\r
+ self.base_pe64 = base_pe64\r
+\r
+ def get_debug_filepath(self):\r
+ # Offset from dos hdr to PE file hdr (EFI_IMAGE_NT_HEADERS64)\r
+ #file_header_offset = self.ec.getMemoryService().readMemory32(self.base_pe64 + 0x3C)\r
+ file_header_offset = 0x0\r
+\r
+ # Offset to debug dir in PE hdrs\r
+ debug_dir_entry_rva = self.ec.getMemoryService().readMemory32(self.base_pe64 + file_header_offset + 0x138)\r
+ if debug_dir_entry_rva == 0:\r
+ raise Exception("EfiFileSectionPE64","No Debug Directory")\r
+\r
+ debug_type = self.ec.getMemoryService().readMemory32(self.base_pe64 + debug_dir_entry_rva + 0xC)\r
+ if (debug_type != 0xdf) and (debug_type != EfiFileSection.EFI_IMAGE_DEBUG_TYPE_CODEVIEW):\r
+ raise Exception("EfiFileSectionPE64","Debug type is not dwarf")\r
+\r
+\r
+ debug_rva = self.ec.getMemoryService().readMemory32(self.base_pe64 + debug_dir_entry_rva + 0x14)\r
+\r
+ dwarf_sig = struct.unpack("cccc", self.ec.getMemoryService().read(str(self.base_pe64 + debug_rva), 4, 32))\r
+ if (dwarf_sig != 0x66727764) and (dwarf_sig != FirmwareFile.CONST_NB10_SIGNATURE):\r
+ raise Exception("EfiFileSectionPE64","Dwarf debug signature not found")\r
+\r
+ if dwarf_sig == 0x66727764:\r
+ filename = self.base_pe64 + debug_rva + 0xc\r
else:\r
- return base_of_data \r
- \r
+ filename = self.base_pe64 + debug_rva + 0x10\r
+ filename = struct.unpack("200s", self.ec.getMemoryService().read(str(filename), 200, 32))[0]\r
+ return filename[0:string.find(filename,'\0')]\r
+\r
+ def get_debug_elfbase(self):\r
+ return self.base_pe64\r
+\r
class FirmwareFile:\r
EFI_FV_FILETYPE_RAW = 0x01\r
EFI_FV_FILETYPE_FREEFORM = 0x02\r
EFI_FV_FILETYPE_APPLICATION = 0x09\r
EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE = 0x0B\r
EFI_FV_FILETYPE_FFS_MIN = 0xF0\r
- \r
+\r
CONST_NB10_SIGNATURE = ('N','B','1','0')\r
- \r
+\r
def __init__(self, fv, base, ec):\r
self.fv = fv\r
self.base = base\r
self.ec = ec\r
- \r
+\r
def __str__(self):\r
return "FFS(state:0x%x, type:0x%X, size:0x%x)" % (self.get_state(), self.get_type(), self.get_size())\r
- \r
+\r
def get_base(self):\r
return self.base\r
- \r
+\r
def get_size(self):\r
size = (self.ec.getMemoryService().readMemory32(self.base + 0x14) & 0x00ffffff)\r
\r
# Occupied size is the size considering the alignment\r
return size + ((0x8 - (size & 0x7)) & 0x7)\r
- \r
+\r
def get_type(self):\r
return self.ec.getMemoryService().readMemory8(self.base + 0x12)\r
- \r
+\r
def get_state(self):\r
state = self.ec.getMemoryService().readMemory8(self.base + 0x17)\r
- \r
+\r
polarity = self.fv.get_polarity()\r
if polarity:\r
state = ~state\r
- \r
+\r
highest_bit = 0x80;\r
while (highest_bit != 0) and ((highest_bit & state) == 0):\r
highest_bit >>= 1\r
- \r
+\r
return highest_bit\r
- \r
+\r
def get_next_section(self, section=None):\r
if section == None:\r
if self.get_type() != FirmwareFile.EFI_FV_FILETYPE_FFS_MIN:\r
return None\r
else:\r
section_base = int(section.get_base() + section.get_size())\r
- \r
+\r
# Align to next 4 byte boundary\r
if (section_base & 0x3) != 0:\r
section_base = section_base + 0x4 - (section_base & 0x3)\r
return EfiFileSection(self.ec, section_base)\r
else:\r
return None\r
- \r
+\r
class FirmwareVolume:\r
CONST_FV_SIGNATURE = ('_','F','V','H')\r
EFI_FVB2_ERASE_POLARITY = 0x800\r
- \r
+\r
DebugInfos = []\r
- \r
+\r
def __init__(self, ec, fv_base, fv_size):\r
self.ec = ec\r
self.fv_base = fv_base\r
self.fv_size = fv_size\r
- \r
+\r
try:\r
signature = struct.unpack("cccc", self.ec.getMemoryService().read(fv_base + 0x28, 4, 32))\r
except DebugException:\r
raise Exception("FirmwareVolume", "Not possible to access the defined firmware volume at [0x%X,0x%X]. Could be the used build report does not correspond to your current debugging context." % (int(fv_base),int(fv_base+fv_size)))\r
if signature != FirmwareVolume.CONST_FV_SIGNATURE:\r
raise Exception("FirmwareVolume", "This is not a valid firmware volume")\r
- \r
+\r
def get_size(self):\r
return self.ec.getMemoryService().readMemory32(self.fv_base + 0x20)\r
- \r
+\r
def get_attributes(self):\r
return self.ec.getMemoryService().readMemory32(self.fv_base + 0x2C)\r
- \r
+\r
def get_polarity(self):\r
attributes = self.get_attributes()\r
if attributes & FirmwareVolume.EFI_FVB2_ERASE_POLARITY:\r
return 1\r
else:\r
return 0\r
- \r
+\r
def get_next_ffs(self, ffs=None):\r
if ffs == None:\r
# Get the offset of the first FFS file from the FV header\r
else:\r
# Goto the next FFS file\r
ffs_base = int(ffs.get_base() + ffs.get_size())\r
- \r
+\r
# Align to next 8 byte boundary\r
if (ffs_base & 0x7) != 0:\r
ffs_base = ffs_base + 0x8 - (ffs_base & 0x7)\r
- \r
+\r
if ffs_base < self.fv_base + self.get_size():\r
return FirmwareFile(self, ffs_base, self.ec)\r
else:\r
return None\r
- \r
- def get_debug_info(self): \r
+\r
+ def get_debug_info(self):\r
self.DebugInfos = []\r
- \r
+\r
ffs = self.get_next_ffs()\r
- while ffs != None: \r
+ while ffs != None:\r
section = ffs.get_next_section()\r
while section != None:\r
type = section.get_type()\r
def load_symbols_at(self, addr, verbose = False):\r
if self.DebugInfos == []:\r
self.get_debug_info()\r
- \r
+\r
for debug_info in self.DebugInfos:\r
if (addr >= debug_info[0]) and (addr < debug_info[0] + debug_info[1]):\r
if debug_info[2] == EfiFileSection.EFI_SECTION_TE:\r
section = EfiSectionPE32(self.ec, debug_info[0] + 0x4)\r
else:\r
raise Exception('FirmwareVolume','Section Type not supported')\r
- \r
+\r
try:\r
edk2_debugger.load_symbol_from_file(self.ec, section.get_debug_filepath(), section.get_debug_elfbase(), verbose)\r
except Exception, (ErrorClass, ErrorMessage):\r
if verbose:\r
print "Error while loading a symbol file (%s: %s)" % (ErrorClass, ErrorMessage)\r
- pass\r
\r
return debug_info\r
\r
def load_all_symbols(self, verbose = False):\r
if self.DebugInfos == []:\r
self.get_debug_info()\r
- \r
+\r
for debug_info in self.DebugInfos:\r
if debug_info[2] == EfiFileSection.EFI_SECTION_TE:\r
section = EfiSectionTE(self.ec, debug_info[0] + 0x4)\r
section = EfiSectionPE32(self.ec, debug_info[0] + 0x4)\r
else:\r
continue\r
- \r
+\r
try:\r
edk2_debugger.load_symbol_from_file(self.ec, section.get_debug_filepath(), section.get_debug_elfbase(), verbose)\r
except Exception, (ErrorClass, ErrorMessage):\r
if verbose:\r
print "Error while loading a symbol file (%s: %s)" % (ErrorClass, ErrorMessage)\r
- pass\r
\r
projects / mirror_edk2.git / blobdiff