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51 lines
1.1 KiB
Python
51 lines
1.1 KiB
Python
import sys, struct, subprocess
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class MapEntry():
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def __init__(self, nm, addr):
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self.name = nm
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self.addr = addr
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self.strlen = (len(nm) + 4) & (~3)
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def __str__(self):
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return "%s %s %d" % (self.addr, self.name, self.strlen)
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def __repr__(self):
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return "%s %s %d" % (self.addr, self.name, self.strlen)
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structDef = ">LLLL"
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symNames = []
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proc = subprocess.Popen(["nm", "-S", sys.argv[1]], stdout=subprocess.PIPE)
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symbols = proc.communicate()[0].decode('ascii').split("\n")
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for line in symbols:
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# format:
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# 80153210 000000f8 T global_sym
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# 80153210 t static_sym
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tokens = line.split()
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if len(tokens) >= 3 and len(tokens[-2]) == 1:
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addr = int(tokens[0], 16)
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if addr & 0x80000000 and tokens[-2].lower() == "t":
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symNames.append(MapEntry(tokens[-1], addr))
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f1 = open(sys.argv[2], "wb+")
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f2 = open(sys.argv[3], "wb+")
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symNames.sort(key=lambda x: x.addr)
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off = 0
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for x in symNames:
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f1.write(struct.pack(structDef, x.addr, off, len(x.name), 0))
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f2.write(struct.pack(">%ds" % x.strlen, bytes(x.name, encoding="ascii")))
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off += x.strlen
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f1.close()
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f2.close()
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# print('\n'.join([str(hex(x.addr)) + " " + x.name for x in symNames]))
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