X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=ArmPlatformPkg%2FScripts%2FDs5%2Ffirmware_volume.py;h=a13d1433eb447823acb46d9d7dce37fcced238b4;hp=c4e02ece248587a0a0c342b665e223e41328bc12;hb=1e57a46299244793beb27e74be171d1540606999;hpb=5767f22fca7c337cdc113e14b411c1fd0ea7bd53

diff --git a/ArmPlatformPkg/Scripts/Ds5/firmware_volume.py b/ArmPlatformPkg/Scripts/Ds5/firmware_volume.py
index c4e02ece24..a13d1433eb 100644
--- a/ArmPlatformPkg/Scripts/Ds5/firmware_volume.py
+++ b/ArmPlatformPkg/Scripts/Ds5/firmware_volume.py
@@ -1,301 +1,301 @@
-#
-#  Copyright (c) 2011-2012, 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 string
-
-import edk2_debugger
-    
-class EfiFileSection(object):
-    EFI_SECTION_PE32                  = 0x10
-    EFI_SECTION_PIC                   = 0x11
-    EFI_SECTION_TE                    = 0x12
-    
-    EFI_IMAGE_DEBUG_TYPE_CODEVIEW     = 0x2
-    
-    SIZEOF_EFI_FFS_FILE_HEADER        = 0x28
-
-    def __init__(self, ec, base):
-        self.base = base
-        self.ec = ec
-        
-    def __str__(self):
-        return "FileSection(type:0x%X, size:0x%x)" % (self.get_type(), self.get_size())
-        
-    def get_base(self):
-        return self.base
- 
-    def get_type(self):
-        return struct.unpack("B", self.ec.getMemoryService().read(self.base + 0x3, 1, 8))[0]
-       
-    def get_size(self):
-        return (struct.unpack("<I", self.ec.getMemoryService().read(self.base, 4, 32))[0] & 0x00ffffff)
-
-    def get_debug_filepath(self):
-        type = self.get_type()
-        if type == EfiFileSection.EFI_SECTION_TE:
-            section = EfiSectionTE(self, ec, self.base + 0x4)
-        elif type == EfiFileSection.EFI_SECTION_PE32:
-            section = EfiSectionPE32(self, ec, self.base + 0x4)
-        else:
-            raise Exception("EfiFileSection", "No debug section")
-        return section.get_debug_filepath()
-
-class EfiSectionTE:
-    SIZEOF_EFI_TE_IMAGE_HEADER        = 0x28
-    EFI_TE_IMAGE_SIGNATURE            = ('V','Z')
-    
-    def __init__(self, ec, base_te):
-        self.ec = ec
-        self.base_te = int(base_te)
-        te_sig = struct.unpack("cc", self.ec.getMemoryService().read(self.base_te, 2, 32))
-        if te_sig != EfiSectionTE.EFI_TE_IMAGE_SIGNATURE:
-            raise Exception("EfiFileSectionTE","TE Signature incorrect")
-        
-    def get_debug_filepath(self):
-        stripped_size = struct.unpack("<H", self.ec.getMemoryService().read(self.base_te + 0x6, 2, 32))[0]
-        stripped_size -= EfiSectionTE.SIZEOF_EFI_TE_IMAGE_HEADER
-        
-        debug_dir_entry_rva = self.ec.getMemoryService().readMemory32(self.base_te + 0x20)
-        if debug_dir_entry_rva == 0:
-            raise Exception("EfiFileSectionTE","No debug directory for image")
-        debug_dir_entry_rva -= stripped_size
-        
-        debug_type = self.ec.getMemoryService().readMemory32(self.base_te + debug_dir_entry_rva + 0xC)
-        if (debug_type != 0xdf) and (debug_type != EfiFileSection.EFI_IMAGE_DEBUG_TYPE_CODEVIEW):
-            raise Exception("EfiFileSectionTE","Debug type is not dwarf")
-
-        debug_rva = self.ec.getMemoryService().readMemory32(self.base_te + debug_dir_entry_rva + 0x14)
-        debug_rva -= stripped_size
-
-        dwarf_sig = struct.unpack("cccc", self.ec.getMemoryService().read(self.base_te + debug_rva, 4, 32))
-        if (dwarf_sig != 0x66727764) and (dwarf_sig != FirmwareFile.CONST_NB10_SIGNATURE):
-            raise Exception("EfiFileSectionTE","Dwarf debug signature not found")
-        
-        if dwarf_sig == 0x66727764:
-            filename = self.base_te + debug_rva + 0xc
-        else:
-            filename = self.base_te + debug_rva + 0x10
-        filename = struct.unpack("200s", self.ec.getMemoryService().read(filename, 200, 32))[0]
-        return filename[0:string.find(filename,'\0')]
-        
-    def get_debug_elfbase(self):
-        stripped_size = struct.unpack("<H", self.ec.getMemoryService().read(self.base_te + 0x6, 2, 32))[0]
-        stripped_size -= EfiSectionTE.SIZEOF_EFI_TE_IMAGE_HEADER
-        
-        base_of_code = self.ec.getMemoryService().readMemory32(self.base_te + 0xC)
-        
-        return self.base_te + base_of_code - stripped_size
-
-class EfiSectionPE32:
-    def __init__(self, ec, base_pe32):
-        self.ec = ec
-        self.base_pe32 = base_pe32
-
-    def get_debug_filepath(self):
-        # Offset from dos hdr to PE file hdr
-        file_header_offset = self.ec.getMemoryService().readMemory32(self.base_pe32 + 0x3C)
-
-        # Offset to debug dir in PE hdrs
-        debug_dir_entry_rva = self.ec.getMemoryService().readMemory32(self.base_pe32 + file_header_offset + 0xA8)
-        if debug_dir_entry_rva == 0:
-            raise Exception("EfiFileSectionPE32","No Debug Directory")
-
-        debug_type = self.ec.getMemoryService().readMemory32(self.base_pe32 + debug_dir_entry_rva + 0xC)
-        if (debug_type != 0xdf) and (debug_type != EfiFileSection.EFI_IMAGE_DEBUG_TYPE_CODEVIEW):
-            raise Exception("EfiFileSectionPE32","Debug type is not dwarf")
-        
-        
-        debug_rva = self.ec.getMemoryService().readMemory32(self.base_pe32 + debug_dir_entry_rva + 0x14)
-        
-        dwarf_sig = struct.unpack("cccc", self.ec.getMemoryService().read(str(self.base_pe32 + debug_rva), 4, 32))
-        if (dwarf_sig != 0x66727764) and (dwarf_sig != FirmwareFile.CONST_NB10_SIGNATURE):
-            raise Exception("EfiFileSectionPE32","Dwarf debug signature not found")
-    
-        if dwarf_sig == 0x66727764:
-            filename = self.base_pe32 + debug_rva + 0xc
-        else:
-            filename = self.base_pe32 + debug_rva + 0x10
-        filename = struct.unpack("200s", self.ec.getMemoryService().read(str(filename), 200, 32))[0]
-        return filename[0:string.find(filename,'\0')]
-    
-    def get_debug_elfbase(self):
-        # Offset from dos hdr to PE file hdr
-        pe_file_header = self.base_pe32 + self.ec.getMemoryService().readMemory32(self.base_pe32 + 0x3C)
-        
-        base_of_code = self.base_pe32 + self.ec.getMemoryService().readMemory32(pe_file_header + 0x28)
-        base_of_data = self.base_pe32 + self.ec.getMemoryService().readMemory32(pe_file_header + 0x2C)
-        
-        if (base_of_code < base_of_data) and (base_of_code != 0):
-            return base_of_code
-        else:
-            return base_of_data       
-    
-class FirmwareFile:
-    EFI_FV_FILETYPE_RAW                   = 0x01
-    EFI_FV_FILETYPE_FREEFORM              = 0x02
-    EFI_FV_FILETYPE_SECURITY_CORE         = 0x03
-    EFI_FV_FILETYPE_PEI_CORE              = 0x04
-    EFI_FV_FILETYPE_DXE_CORE              = 0x05
-    EFI_FV_FILETYPE_PEIM                  = 0x06
-    EFI_FV_FILETYPE_DRIVER                = 0x07
-    EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER  = 0x08
-    EFI_FV_FILETYPE_APPLICATION           = 0x09
-    EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE = 0x0B
-    EFI_FV_FILETYPE_FFS_MIN               = 0xF0
-    
-    CONST_NB10_SIGNATURE = ('N','B','1','0')
-    
-    def __init__(self, fv, base, ec):
-        self.fv = fv
-        self.base = base
-        self.ec = ec
-        
-    def __str__(self):
-        return "FFS(state:0x%x, type:0x%X, size:0x%x)" % (self.get_state(), self.get_type(), self.get_size())
-    
-    def get_base(self):
-        return self.base
-    
-    def get_size(self):
-        size = (self.ec.getMemoryService().readMemory32(self.base + 0x14) & 0x00ffffff)
-
-        # Occupied size is the size considering the alignment
-        return size + ((0x8 - (size & 0x7)) & 0x7)
-    
-    def get_type(self):
-        return self.ec.getMemoryService().readMemory8(self.base + 0x12)
-     
-    def get_state(self):
-        state = self.ec.getMemoryService().readMemory8(self.base + 0x17)
-        
-        polarity = self.fv.get_polarity()
-        if polarity:
-            state = ~state
-            
-        highest_bit = 0x80;
-        while (highest_bit != 0) and ((highest_bit & state) == 0):
-            highest_bit >>= 1
-            
-        return highest_bit
-    
-    def get_next_section(self, section=None):
-        if section == None:
-            if self.get_type() != FirmwareFile.EFI_FV_FILETYPE_FFS_MIN:
-                section_base = self.get_base() + 0x18;
-            else:
-                return None
-        else:
-            section_base = int(section.get_base() + section.get_size())
-            
-            # Align to next 4 byte boundary
-            if (section_base & 0x3) != 0:
-                section_base = section_base + 0x4 - (section_base & 0x3)
-
-        if section_base < self.get_base() + self.get_size():
-            return EfiFileSection(self.ec, section_base)
-        else:
-            return None
-    
-class FirmwareVolume:
-    CONST_FV_SIGNATURE = ('_','F','V','H')
-    EFI_FVB2_ERASE_POLARITY = 0x800
-    
-    DebugInfos = []
-    
-    def __init__(self, ec, fv_base, fv_size):
-        self.ec = ec
-        self.fv_base = fv_base
-        self.fv_size = fv_size
-        
-        try:
-            signature = struct.unpack("cccc", self.ec.getMemoryService().read(fv_base + 0x28, 4, 32))
-        except DebugException:
-            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)))
-        if signature != FirmwareVolume.CONST_FV_SIGNATURE:
-            raise Exception("FirmwareVolume", "This is not a valid firmware volume")
-      
-    def get_size(self):
-        return self.ec.getMemoryService().readMemory32(self.fv_base + 0x20)
-    
-    def get_attributes(self):
-        return self.ec.getMemoryService().readMemory32(self.fv_base + 0x2C)
-    
-    def get_polarity(self):
-        attributes = self.get_attributes()
-        if attributes & FirmwareVolume.EFI_FVB2_ERASE_POLARITY:
-            return 1
-        else:
-            return 0
-    
-    def get_next_ffs(self, ffs=None):
-        if ffs == None:
-            # Get the offset of the first FFS file from the FV header
-            ffs_base = self.fv_base +  self.ec.getMemoryService().readMemory16(self.fv_base + 0x30)
-        else:
-            # Goto the next FFS file
-            ffs_base = int(ffs.get_base() + ffs.get_size())
-            
-            # Align to next 8 byte boundary
-            if (ffs_base & 0x7) != 0:
-                ffs_base = ffs_base + 0x8 - (ffs_base & 0x7)
-                
-        if ffs_base < self.fv_base + self.get_size():
-            return FirmwareFile(self, ffs_base, self.ec)
-        else:
-            return None
-        
-    def get_debug_info(self):        
-        self.DebugInfos = []
-        
-        ffs = self.get_next_ffs()
-        while ffs != None:            
-            section = ffs.get_next_section()
-            while section != None:
-                type = section.get_type()
-                if (type == EfiFileSection.EFI_SECTION_TE) or (type == EfiFileSection.EFI_SECTION_PE32):
-                    self.DebugInfos.append((section.get_base(), section.get_size(), section.get_type()))
-                section = ffs.get_next_section(section)
-            ffs = self.get_next_ffs(ffs)
-
-    def load_symbols_at(self, addr):
-        if self.DebugInfos == []:
-            self.get_debug_info()
-        
-        for debug_info in self.DebugInfos:
-            if (addr >= debug_info[0]) and (addr < debug_info[0] + debug_info[1]):
-                if debug_info[2] == EfiFileSection.EFI_SECTION_TE:
-                    section = EfiSectionTE(self.ec, debug_info[0] + 0x4)
-                elif debug_info[2] == EfiFileSection.EFI_SECTION_PE32:
-                    section = EfiSectionPE32(self.ec, debug_info[0] + 0x4)
-                else:
-                    raise Exception('FirmwareVolume','Section Type not supported')
-                
-                edk2_debugger.load_symbol_from_file(self.ec, section.get_debug_filepath(), section.get_debug_elfbase())
-
-                return debug_info
-
-    def load_all_symbols(self):
-        if self.DebugInfos == []:
-            self.get_debug_info()
-        
-        for debug_info in self.DebugInfos:
-            if debug_info[2] == EfiFileSection.EFI_SECTION_TE:
-                section = EfiSectionTE(self.ec, debug_info[0] + 0x4)
-            elif debug_info[2] == EfiFileSection.EFI_SECTION_PE32:
-                section = EfiSectionPE32(self.ec, debug_info[0] + 0x4)
-            else:
-                continue
-            
-            edk2_debugger.load_symbol_from_file(self.ec, section.get_debug_filepath(), section.get_debug_elfbase())
+#
+#  Copyright (c) 2011-2012, 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 string
+
+import edk2_debugger
+    
+class EfiFileSection(object):
+    EFI_SECTION_PE32                  = 0x10
+    EFI_SECTION_PIC                   = 0x11
+    EFI_SECTION_TE                    = 0x12
+    
+    EFI_IMAGE_DEBUG_TYPE_CODEVIEW     = 0x2
+    
+    SIZEOF_EFI_FFS_FILE_HEADER        = 0x28
+
+    def __init__(self, ec, base):
+        self.base = base
+        self.ec = ec
+        
+    def __str__(self):
+        return "FileSection(type:0x%X, size:0x%x)" % (self.get_type(), self.get_size())
+        
+    def get_base(self):
+        return self.base
+ 
+    def get_type(self):
+        return struct.unpack("B", self.ec.getMemoryService().read(self.base + 0x3, 1, 8))[0]
+       
+    def get_size(self):
+        return (struct.unpack("<I", self.ec.getMemoryService().read(self.base, 4, 32))[0] & 0x00ffffff)
+
+    def get_debug_filepath(self):
+        type = self.get_type()
+        if type == EfiFileSection.EFI_SECTION_TE:
+            section = EfiSectionTE(self, ec, self.base + 0x4)
+        elif type == EfiFileSection.EFI_SECTION_PE32:
+            section = EfiSectionPE32(self, ec, self.base + 0x4)
+        else:
+            raise Exception("EfiFileSection", "No debug section")
+        return section.get_debug_filepath()
+
+class EfiSectionTE:
+    SIZEOF_EFI_TE_IMAGE_HEADER        = 0x28
+    EFI_TE_IMAGE_SIGNATURE            = ('V','Z')
+    
+    def __init__(self, ec, base_te):
+        self.ec = ec
+        self.base_te = int(base_te)
+        te_sig = struct.unpack("cc", self.ec.getMemoryService().read(self.base_te, 2, 32))
+        if te_sig != EfiSectionTE.EFI_TE_IMAGE_SIGNATURE:
+            raise Exception("EfiFileSectionTE","TE Signature incorrect")
+        
+    def get_debug_filepath(self):
+        stripped_size = struct.unpack("<H", self.ec.getMemoryService().read(self.base_te + 0x6, 2, 32))[0]
+        stripped_size -= EfiSectionTE.SIZEOF_EFI_TE_IMAGE_HEADER
+        
+        debug_dir_entry_rva = self.ec.getMemoryService().readMemory32(self.base_te + 0x20)
+        if debug_dir_entry_rva == 0:
+            raise Exception("EfiFileSectionTE","No debug directory for image")
+        debug_dir_entry_rva -= stripped_size
+        
+        debug_type = self.ec.getMemoryService().readMemory32(self.base_te + debug_dir_entry_rva + 0xC)
+        if (debug_type != 0xdf) and (debug_type != EfiFileSection.EFI_IMAGE_DEBUG_TYPE_CODEVIEW):
+            raise Exception("EfiFileSectionTE","Debug type is not dwarf")
+
+        debug_rva = self.ec.getMemoryService().readMemory32(self.base_te + debug_dir_entry_rva + 0x14)
+        debug_rva -= stripped_size
+
+        dwarf_sig = struct.unpack("cccc", self.ec.getMemoryService().read(self.base_te + debug_rva, 4, 32))
+        if (dwarf_sig != 0x66727764) and (dwarf_sig != FirmwareFile.CONST_NB10_SIGNATURE):
+            raise Exception("EfiFileSectionTE","Dwarf debug signature not found")
+        
+        if dwarf_sig == 0x66727764:
+            filename = self.base_te + debug_rva + 0xc
+        else:
+            filename = self.base_te + debug_rva + 0x10
+        filename = struct.unpack("200s", self.ec.getMemoryService().read(filename, 200, 32))[0]
+        return filename[0:string.find(filename,'\0')]
+        
+    def get_debug_elfbase(self):
+        stripped_size = struct.unpack("<H", self.ec.getMemoryService().read(self.base_te + 0x6, 2, 32))[0]
+        stripped_size -= EfiSectionTE.SIZEOF_EFI_TE_IMAGE_HEADER
+        
+        base_of_code = self.ec.getMemoryService().readMemory32(self.base_te + 0xC)
+        
+        return self.base_te + base_of_code - stripped_size
+
+class EfiSectionPE32:
+    def __init__(self, ec, base_pe32):
+        self.ec = ec
+        self.base_pe32 = base_pe32
+
+    def get_debug_filepath(self):
+        # Offset from dos hdr to PE file hdr
+        file_header_offset = self.ec.getMemoryService().readMemory32(self.base_pe32 + 0x3C)
+
+        # Offset to debug dir in PE hdrs
+        debug_dir_entry_rva = self.ec.getMemoryService().readMemory32(self.base_pe32 + file_header_offset + 0xA8)
+        if debug_dir_entry_rva == 0:
+            raise Exception("EfiFileSectionPE32","No Debug Directory")
+
+        debug_type = self.ec.getMemoryService().readMemory32(self.base_pe32 + debug_dir_entry_rva + 0xC)
+        if (debug_type != 0xdf) and (debug_type != EfiFileSection.EFI_IMAGE_DEBUG_TYPE_CODEVIEW):
+            raise Exception("EfiFileSectionPE32","Debug type is not dwarf")
+        
+        
+        debug_rva = self.ec.getMemoryService().readMemory32(self.base_pe32 + debug_dir_entry_rva + 0x14)
+        
+        dwarf_sig = struct.unpack("cccc", self.ec.getMemoryService().read(str(self.base_pe32 + debug_rva), 4, 32))
+        if (dwarf_sig != 0x66727764) and (dwarf_sig != FirmwareFile.CONST_NB10_SIGNATURE):
+            raise Exception("EfiFileSectionPE32","Dwarf debug signature not found")
+    
+        if dwarf_sig == 0x66727764:
+            filename = self.base_pe32 + debug_rva + 0xc
+        else:
+            filename = self.base_pe32 + debug_rva + 0x10
+        filename = struct.unpack("200s", self.ec.getMemoryService().read(str(filename), 200, 32))[0]
+        return filename[0:string.find(filename,'\0')]
+    
+    def get_debug_elfbase(self):
+        # Offset from dos hdr to PE file hdr
+        pe_file_header = self.base_pe32 + self.ec.getMemoryService().readMemory32(self.base_pe32 + 0x3C)
+        
+        base_of_code = self.base_pe32 + self.ec.getMemoryService().readMemory32(pe_file_header + 0x28)
+        base_of_data = self.base_pe32 + self.ec.getMemoryService().readMemory32(pe_file_header + 0x2C)
+        
+        if (base_of_code < base_of_data) and (base_of_code != 0):
+            return base_of_code
+        else:
+            return base_of_data       
+    
+class FirmwareFile:
+    EFI_FV_FILETYPE_RAW                   = 0x01
+    EFI_FV_FILETYPE_FREEFORM              = 0x02
+    EFI_FV_FILETYPE_SECURITY_CORE         = 0x03
+    EFI_FV_FILETYPE_PEI_CORE              = 0x04
+    EFI_FV_FILETYPE_DXE_CORE              = 0x05
+    EFI_FV_FILETYPE_PEIM                  = 0x06
+    EFI_FV_FILETYPE_DRIVER                = 0x07
+    EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER  = 0x08
+    EFI_FV_FILETYPE_APPLICATION           = 0x09
+    EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE = 0x0B
+    EFI_FV_FILETYPE_FFS_MIN               = 0xF0
+    
+    CONST_NB10_SIGNATURE = ('N','B','1','0')
+    
+    def __init__(self, fv, base, ec):
+        self.fv = fv
+        self.base = base
+        self.ec = ec
+        
+    def __str__(self):
+        return "FFS(state:0x%x, type:0x%X, size:0x%x)" % (self.get_state(), self.get_type(), self.get_size())
+    
+    def get_base(self):
+        return self.base
+    
+    def get_size(self):
+        size = (self.ec.getMemoryService().readMemory32(self.base + 0x14) & 0x00ffffff)
+
+        # Occupied size is the size considering the alignment
+        return size + ((0x8 - (size & 0x7)) & 0x7)
+    
+    def get_type(self):
+        return self.ec.getMemoryService().readMemory8(self.base + 0x12)
+     
+    def get_state(self):
+        state = self.ec.getMemoryService().readMemory8(self.base + 0x17)
+        
+        polarity = self.fv.get_polarity()
+        if polarity:
+            state = ~state
+            
+        highest_bit = 0x80;
+        while (highest_bit != 0) and ((highest_bit & state) == 0):
+            highest_bit >>= 1
+            
+        return highest_bit
+    
+    def get_next_section(self, section=None):
+        if section == None:
+            if self.get_type() != FirmwareFile.EFI_FV_FILETYPE_FFS_MIN:
+                section_base = self.get_base() + 0x18;
+            else:
+                return None
+        else:
+            section_base = int(section.get_base() + section.get_size())
+            
+            # Align to next 4 byte boundary
+            if (section_base & 0x3) != 0:
+                section_base = section_base + 0x4 - (section_base & 0x3)
+
+        if section_base < self.get_base() + self.get_size():
+            return EfiFileSection(self.ec, section_base)
+        else:
+            return None
+    
+class FirmwareVolume:
+    CONST_FV_SIGNATURE = ('_','F','V','H')
+    EFI_FVB2_ERASE_POLARITY = 0x800
+    
+    DebugInfos = []
+    
+    def __init__(self, ec, fv_base, fv_size):
+        self.ec = ec
+        self.fv_base = fv_base
+        self.fv_size = fv_size
+        
+        try:
+            signature = struct.unpack("cccc", self.ec.getMemoryService().read(fv_base + 0x28, 4, 32))
+        except DebugException:
+            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)))
+        if signature != FirmwareVolume.CONST_FV_SIGNATURE:
+            raise Exception("FirmwareVolume", "This is not a valid firmware volume")
+      
+    def get_size(self):
+        return self.ec.getMemoryService().readMemory32(self.fv_base + 0x20)
+    
+    def get_attributes(self):
+        return self.ec.getMemoryService().readMemory32(self.fv_base + 0x2C)
+    
+    def get_polarity(self):
+        attributes = self.get_attributes()
+        if attributes & FirmwareVolume.EFI_FVB2_ERASE_POLARITY:
+            return 1
+        else:
+            return 0
+    
+    def get_next_ffs(self, ffs=None):
+        if ffs == None:
+            # Get the offset of the first FFS file from the FV header
+            ffs_base = self.fv_base +  self.ec.getMemoryService().readMemory16(self.fv_base + 0x30)
+        else:
+            # Goto the next FFS file
+            ffs_base = int(ffs.get_base() + ffs.get_size())
+            
+            # Align to next 8 byte boundary
+            if (ffs_base & 0x7) != 0:
+                ffs_base = ffs_base + 0x8 - (ffs_base & 0x7)
+                
+        if ffs_base < self.fv_base + self.get_size():
+            return FirmwareFile(self, ffs_base, self.ec)
+        else:
+            return None
+        
+    def get_debug_info(self):        
+        self.DebugInfos = []
+        
+        ffs = self.get_next_ffs()
+        while ffs != None:            
+            section = ffs.get_next_section()
+            while section != None:
+                type = section.get_type()
+                if (type == EfiFileSection.EFI_SECTION_TE) or (type == EfiFileSection.EFI_SECTION_PE32):
+                    self.DebugInfos.append((section.get_base(), section.get_size(), section.get_type()))
+                section = ffs.get_next_section(section)
+            ffs = self.get_next_ffs(ffs)
+
+    def load_symbols_at(self, addr):
+        if self.DebugInfos == []:
+            self.get_debug_info()
+        
+        for debug_info in self.DebugInfos:
+            if (addr >= debug_info[0]) and (addr < debug_info[0] + debug_info[1]):
+                if debug_info[2] == EfiFileSection.EFI_SECTION_TE:
+                    section = EfiSectionTE(self.ec, debug_info[0] + 0x4)
+                elif debug_info[2] == EfiFileSection.EFI_SECTION_PE32:
+                    section = EfiSectionPE32(self.ec, debug_info[0] + 0x4)
+                else:
+                    raise Exception('FirmwareVolume','Section Type not supported')
+                
+                edk2_debugger.load_symbol_from_file(self.ec, section.get_debug_filepath(), section.get_debug_elfbase())
+
+                return debug_info
+
+    def load_all_symbols(self):
+        if self.DebugInfos == []:
+            self.get_debug_info()
+        
+        for debug_info in self.DebugInfos:
+            if debug_info[2] == EfiFileSection.EFI_SECTION_TE:
+                section = EfiSectionTE(self.ec, debug_info[0] + 0x4)
+            elif debug_info[2] == EfiFileSection.EFI_SECTION_PE32:
+                section = EfiSectionPE32(self.ec, debug_info[0] + 0x4)
+            else:
+                continue
+            
+            edk2_debugger.load_symbol_from_file(self.ec, section.get_debug_filepath(), section.get_debug_elfbase())