diff options
Diffstat (limited to 'BaseTools/Source/Python/Common')
| -rw-r--r-- | BaseTools/Source/Python/Common/Misc.py | 130 |
1 files changed, 129 insertions, 1 deletions
diff --git a/BaseTools/Source/Python/Common/Misc.py b/BaseTools/Source/Python/Common/Misc.py index 19a1319639..96ee30b2bf 100644 --- a/BaseTools/Source/Python/Common/Misc.py +++ b/BaseTools/Source/Python/Common/Misc.py @@ -1,7 +1,7 @@ ## @file
# Common routines used by all tools
#
-# Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>
# 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
@@ -44,6 +44,134 @@ gFileTimeStampCache = {} # {file path : file time stamp} ## Dictionary used to store dependencies of files
gDependencyDatabase = {} # arch : {file path : [dependent files list]}
+def GetVariableOffset(mapfilepath, efifilepath, varnames):
+ """ Parse map file to get variable offset in current EFI file
+ @param mapfilepath Map file absolution path
+ @param efifilepath: EFI binary file full path
+ @param varnames iteratable container whose elements are variable names to be searched
+
+ @return List whos elements are tuple with variable name and raw offset
+ """
+ lines = []
+ try:
+ f = open(mapfilepath, 'r')
+ lines = f.readlines()
+ f.close()
+ except:
+ return None
+
+ if len(lines) == 0: return None
+ firstline = lines[0].strip()
+ if (firstline.startswith("Archive member included ") and
+ firstline.endswith(" file (symbol)")):
+ return _parseForGCC(lines, efifilepath, varnames)
+ return _parseGeneral(lines, efifilepath, varnames)
+
+def _parseForGCC(lines, efifilepath, varnames):
+ """ Parse map file generated by GCC linker """
+ status = 0
+ sections = []
+ varoffset = []
+ for line in lines:
+ line = line.strip()
+ # status machine transection
+ if status == 0 and line == "Memory Configuration":
+ status = 1
+ continue
+ elif status == 1 and line == 'Linker script and memory map':
+ status = 2
+ continue
+ elif status ==2 and line == 'START GROUP':
+ status = 3
+ continue
+
+ # status handler
+ if status == 2:
+ m = re.match('^([\w_\.]+) +([\da-fA-Fx]+) +([\da-fA-Fx]+)$', line)
+ if m != None:
+ sections.append(m.groups(0))
+ for varname in varnames:
+ m = re.match("^([\da-fA-Fx]+) +[_]*(%s)$" % varname, line)
+ if m != None:
+ varoffset.append((varname, int(m.groups(0)[0], 16) , int(sections[-1][1], 16), sections[-1][0]))
+
+ if not varoffset:
+ return []
+ # get section information from efi file
+ efisecs = PeImageClass(efifilepath).SectionHeaderList
+ if efisecs == None or len(efisecs) == 0:
+ return []
+ #redirection
+ redirection = 0
+ for efisec in efisecs:
+ for section in sections:
+ if section[0].strip() == efisec[0].strip() and section[0].strip() == '.text':
+ redirection = int(section[1], 16) - efisec[1]
+
+ ret = []
+ for var in varoffset:
+ for efisec in efisecs:
+ if var[1] >= efisec[1] and var[1] < efisec[1]+efisec[3]:
+ ret.append((var[0], hex(efisec[2] + var[1] - efisec[1] - redirection)))
+ return ret
+
+def _parseGeneral(lines, efifilepath, varnames):
+ status = 0 #0 - beginning of file; 1 - PE section definition; 2 - symbol table
+ secs = [] # key = section name
+ varoffset = []
+ secRe = re.compile('^([\da-fA-F]+):([\da-fA-F]+) +([\da-fA-F]+)[Hh]? +([.\w\$]+) +(\w+)', re.UNICODE)
+ symRe = re.compile('^([\da-fA-F]+):([\da-fA-F]+) +([\.:\\\\\w\?@\$]+) +([\da-fA-F]+)', re.UNICODE)
+
+ for line in lines:
+ line = line.strip()
+ if re.match("^Start[' ']+Length[' ']+Name[' ']+Class", line):
+ status = 1
+ continue
+ if re.match("^Address[' ']+Publics by Value[' ']+Rva\+Base", line):
+ status = 2
+ continue
+ if re.match("^entry point at", line):
+ status = 3
+ continue
+ if status == 1 and len(line) != 0:
+ m = secRe.match(line)
+ assert m != None, "Fail to parse the section in map file , line is %s" % line
+ sec_no, sec_start, sec_length, sec_name, sec_class = m.groups(0)
+ secs.append([int(sec_no, 16), int(sec_start, 16), int(sec_length, 16), sec_name, sec_class])
+ if status == 2 and len(line) != 0:
+ for varname in varnames:
+ m = symRe.match(line)
+ assert m != None, "Fail to parse the symbol in map file, line is %s" % line
+ sec_no, sym_offset, sym_name, vir_addr = m.groups(0)
+ sec_no = int(sec_no, 16)
+ sym_offset = int(sym_offset, 16)
+ vir_addr = int(vir_addr, 16)
+ m2 = re.match('^[_]*(%s)' % varname, sym_name)
+ if m2 != None:
+ # fond a binary pcd entry in map file
+ for sec in secs:
+ if sec[0] == sec_no and (sym_offset >= sec[1] and sym_offset < sec[1] + sec[2]):
+ varoffset.append([varname, sec[3], sym_offset, vir_addr, sec_no])
+
+ if not varoffset: return []
+
+ # get section information from efi file
+ efisecs = PeImageClass(efifilepath).SectionHeaderList
+ if efisecs == None or len(efisecs) == 0:
+ return []
+
+ ret = []
+ for var in varoffset:
+ index = 0
+ for efisec in efisecs:
+ index = index + 1
+ if var[1].strip() == efisec[0].strip():
+ ret.append((var[0], hex(efisec[2] + var[2])))
+ elif var[4] == index:
+ ret.append((var[0], hex(efisec[2] + var[2])))
+
+ return ret
+
## Routine to process duplicated INF
#
# This function is called by following two cases:
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