81 lines
2.4 KiB
Python
81 lines
2.4 KiB
Python
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#
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# Simple script to find function associated with a function in .map file.
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#
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# Useful for when running in a simulator or with JTAG looking for errors
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# before the debugger is attached.
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#
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import sys
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def HexToLong(h):
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if len(h) > 2 and h[0:2] == "0x":
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return long(h[2:], 16)
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else:
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return long(h, 16)
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def BuildSymbolMap(symbolMapFile):
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symbolMap = []
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for line in symbolMapFile:
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if line.find('?') < 0:
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continue
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components = line.split()
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mapEntry = (HexToLong(components[2]), components[1])
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symbolMap.append(mapEntry)
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return symbolMap
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def FindMatch(symbolMap, lookupAddress):
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# Ripe for a modified binary search but horrible O(N) implementation now.
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lastAddress = 0
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lastSymbol = "ScriptError"
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for address, symbol in symbolMap:
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if address == lookupAddress:
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return True, address, symbol
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elif lookupAddress < address:
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return True, lastAddress, lastSymbol
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lastAddress, lastSymbol = address, symbol
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return False, address, address
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def FindOne(symbolMap, address):
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success, fnStartAddress, fnName = FindMatch(symbolMap, address)
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if success == True:
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print "%08x in %s + %03x" % (address, fnName, address - fnStartAddress)
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else:
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print "Match not found."
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def AnnotatePrt(symbolMap, prt):
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for line in prt:
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if line.startswith("!(ETC) -"):
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try:
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address = HexToLong(line.split()[2])
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success, fnStart, fnName = FindMatch(symbolMap, address)
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if success:
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print "%s [%08x + %08x]" % (fnName, fnStart, address - fnStart)
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print line.rstrip()
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except ValueError:
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print "Oops! \"%s\"" % line
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def main(argv):
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if len(argv) != 3 and len(argv) != 4:
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print "Usage: %s <MapFile> <Address>"
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return -1
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if len(argv) == 3:
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dotMapFile = open(argv[1], "r")
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address = HexToLong(argv[2])
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FindOne(BuildSymbolMap(dotMapFile), address)
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dotMapFile.close()
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if len(argv) == 4 and argv[1] == "-prt":
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dotMapFile = open(argv[2], "r")
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prtFile = open(argv[3], "r")
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AnnotatePrt(BuildSymbolMap(dotMapFile), prtFile)
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dotMapFile.close()
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prtFile.close()
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if __name__ == "__main__":
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sys.exit(main(sys.argv))
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