mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-11 14:28:08 +01:00
226 lines
9.9 KiB
Python
226 lines
9.9 KiB
Python
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#
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# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-2-Clause-Patent
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#
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import os
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import firmware_volume
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import build_report
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import system_table
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# Reload external classes
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reload(firmware_volume)
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reload(build_report)
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reload(system_table)
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def readMem32(executionContext, address):
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bytes = executionContext.getMemoryService().read(address, 4, 32)
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return struct.unpack('<I',bytes)[0]
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def dump_fv(ec, fv_base, fv_size):
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fv = firmware_volume.FirmwareVolume(ec,
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int(build.PCDs['gArmTokenSpaceGuid']['PcdFvBaseAddress'][0],16),
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int(build.PCDs['gArmTokenSpaceGuid']['PcdFvSize'][0],16))
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ffs = fv.get_next_ffs()
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while ffs != None:
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print "# %s" % ffs
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section = ffs.get_next_section()
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while section != None:
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print "\t%s" % section
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try:
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print "\t\t- %s" % section.get_debug_filepath()
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except Exception:
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pass
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section = ffs.get_next_section(section)
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ffs = fv.get_next_ffs(ffs)
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def dump_system_table(ec, mem_base, mem_size):
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st = system_table.SystemTable(ec, mem_base, mem_size)
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debug_info_table_base = st.get_configuration_table(system_table.DebugInfoTable.CONST_DEBUG_INFO_TABLE_GUID)
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debug_info_table = system_table.DebugInfoTable(ec, debug_info_table_base)
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debug_info_table.dump()
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def load_symbol_from_file(ec, filename, address, verbose = False):
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if verbose:
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print "Add symbols of %s at 0x%x" % (filename, address)
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try:
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ec.getImageService().addSymbols(filename, address)
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except:
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try:
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# We could get an exception if the symbols are already loaded
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ec.getImageService().unloadSymbols(filename)
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ec.getImageService().addSymbols(filename, address)
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except:
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print "Warning: not possible to load symbols from %s at 0x%x" % (filename, address)
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def is_aarch64(ec):
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success = True
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try:
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# Try to access a Aarch64 specific register
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ec.getRegisterService().getValue('X0')
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except:
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success = False
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return success
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class ArmPlatform:
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def __init__(self, sysmembase=None, sysmemsize=None, fvs={}):
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self.sysmembase = sysmembase
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self.sysmemsize = sysmemsize
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self.fvs = fvs
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class ArmPlatformDebugger:
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system_table = None
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firmware_volumes = {}
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REGION_TYPE_SYSMEM = 1
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REGION_TYPE_ROM = 2
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REGION_TYPE_FV = 3
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def __init__(self, ec, report_log, regions, verbose = False):
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self.ec = ec
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self.verbose = verbose
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fvs = []
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sysmem_base = None
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sysmem_size = None
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if report_log and os.path.isfile(report_log):
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try:
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self.build = build_report.BuildReport(report_log)
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except IOError:
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raise IOError(2, 'Report \'%s\' is not valid' % report_log)
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# Generate list of supported Firmware Volumes
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if self.build.PCDs['gArmTokenSpaceGuid'].has_key('PcdFvSize') and int(self.build.PCDs['gArmTokenSpaceGuid']['PcdFvSize'][0],16) != 0:
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fvs.append((int(self.build.PCDs['gArmTokenSpaceGuid']['PcdFvBaseAddress'][0],16),int(self.build.PCDs['gArmTokenSpaceGuid']['PcdFvSize'][0],16)))
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if self.build.PCDs['gArmTokenSpaceGuid'].has_key('PcdSecureFvSize') and int(self.build.PCDs['gArmTokenSpaceGuid']['PcdSecureFvSize'][0],16) != 0:
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fvs.append((int(self.build.PCDs['gArmTokenSpaceGuid']['PcdSecureFvBaseAddress'][0],16),int(self.build.PCDs['gArmTokenSpaceGuid']['PcdSecureFvSize'][0],16)))
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if self.build.PCDs['gArmTokenSpaceGuid'].has_key('PcdHypFvSize') and int(self.build.PCDs['gArmTokenSpaceGuid']['PcdHypFvSize'][0],16) != 0:
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fvs.append((int(self.build.PCDs['gArmTokenSpaceGuid']['PcdHypFvBaseAddress'][0],16),int(self.build.PCDs['gArmTokenSpaceGuid']['PcdHypFvSize'][0],16)))
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sysmem_base = int(self.build.PCDs['gArmTokenSpaceGuid']['PcdSystemMemoryBase'][0],16)
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sysmem_size = int(self.build.PCDs['gArmTokenSpaceGuid']['PcdSystemMemorySize'][0],16)
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else:
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for region in regions:
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if region[0] == ArmPlatformDebugger.REGION_TYPE_SYSMEM:
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sysmem_base = region[1]
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sysmem_size = region[2]
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elif region[0] == ArmPlatformDebugger.REGION_TYPE_FV:
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fvs.append((region[1],region[2]))
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elif region[0] == ArmPlatformDebugger.REGION_TYPE_ROM:
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for base in xrange(region[1], region[1] + region[2], 0x400000):
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signature = struct.unpack("cccc", self.ec.getMemoryService().read(base, 4, 32))
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if signature == FirmwareVolume.CONST_FV_SIGNATURE:
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fvs.append((base,0))
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else:
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print "Region type '%d' Not Supported" % region[0]
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self.platform = ArmPlatform(sysmem_base, sysmem_size, fvs)
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def in_sysmem(self, addr):
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return (self.platform.sysmembase is not None) and (self.platform.sysmembase <= addr) and (addr < self.platform.sysmembase + self.platform.sysmemsize)
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def in_fv(self, addr):
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return (self.get_fv_at(addr) != None)
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def get_fv_at(self, addr):
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for fv in self.platform.fvs:
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if (fv[0] <= addr) and (addr < fv[0] + fv[1]):
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return fv
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return None
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def load_current_symbols(self):
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pc = int(self.ec.getRegisterService().getValue('PC')) & 0xFFFFFFFF
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if self.in_fv(pc):
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debug_infos = []
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(fv_base, fv_size) = self.get_fv_at(pc)
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if self.firmware_volumes.has_key(fv_base) == False:
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self.firmware_volumes[fv_base] = firmware_volume.FirmwareVolume(self.ec, fv_base, fv_size)
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stack_frame = self.ec.getTopLevelStackFrame()
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info = self.firmware_volumes[fv_base].load_symbols_at(int(stack_frame.getRegisterService().getValue('PC')) & 0xFFFFFFFF, self.verbose)
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debug_infos.append(info)
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while stack_frame.next() is not None:
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stack_frame = stack_frame.next()
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# Stack frame attached to 'PC'
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pc = int(stack_frame.getRegisterService().getValue('PC')) & 0xFFFFFFFF
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# Check if the symbols for this stack frame have already been loaded
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found = False
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for debug_info in debug_infos:
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if (pc >= debug_info[0]) and (pc < debug_info[0] + debug_info[1]):
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found = True
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if found == False:
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info = self.firmware_volumes[fv_base].load_symbols_at(pc)
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debug_infos.append(info)
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#self.firmware_volumes[fv_base].load_symbols_at(pc)
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elif self.in_sysmem(pc):
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debug_infos = []
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if self.system_table is None:
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# Find the System Table
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self.system_table = system_table.SystemTable(self.ec, self.platform.sysmembase, self.platform.sysmemsize)
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# Find the Debug Info Table
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debug_info_table_base = self.system_table.get_configuration_table(system_table.DebugInfoTable.CONST_DEBUG_INFO_TABLE_GUID)
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self.debug_info_table = system_table.DebugInfoTable(self.ec, debug_info_table_base)
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stack_frame = self.ec.getTopLevelStackFrame()
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info = self.debug_info_table.load_symbols_at(int(stack_frame.getRegisterService().getValue('PC')) & 0xFFFFFFFF, self.verbose)
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debug_infos.append(info)
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while stack_frame.next() is not None:
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stack_frame = stack_frame.next()
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# Stack frame attached to 'PC'
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pc = int(stack_frame.getRegisterService().getValue('PC')) & 0xFFFFFFFF
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# Check if the symbols for this stack frame have already been loaded
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found = False
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for debug_info in debug_infos:
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if (pc >= debug_info[0]) and (pc < debug_info[0] + debug_info[1]):
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found = True
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if found == False:
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try:
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info = self.debug_info_table.load_symbols_at(pc)
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debug_infos.append(info)
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except:
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pass
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#self.debug_info_table.load_symbols_at(pc)
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else:
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raise Exception('ArmPlatformDebugger', "Not supported region")
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def load_all_symbols(self):
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# Load all the XIP symbols attached to the Firmware Volume
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for (fv_base, fv_size) in self.platform.fvs:
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if self.firmware_volumes.has_key(fv_base) == False:
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self.firmware_volumes[fv_base] = firmware_volume.FirmwareVolume(self.ec, fv_base, fv_size)
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self.firmware_volumes[fv_base].load_all_symbols(self.verbose)
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try:
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# Load all symbols of module loaded into System Memory
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if self.system_table is None:
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# Find the System Table
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self.system_table = system_table.SystemTable(self.ec, self.platform.sysmembase, self.platform.sysmemsize)
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# Find the Debug Info Table
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debug_info_table_base = self.system_table.get_configuration_table(system_table.DebugInfoTable.CONST_DEBUG_INFO_TABLE_GUID)
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self.debug_info_table = system_table.DebugInfoTable(self.ec, debug_info_table_base)
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self.debug_info_table.load_all_symbols(self.verbose)
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except:
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# Debugger exception could be excepted if DRAM has not been initialized or if we have not started to run from DRAM yet
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print "Note: no symbols have been found in System Memory (possible cause: the UEFI permanent memory has not been installed yet)"
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