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https://github.com/HackerN64/HackerSM64.git
synced 2026-01-21 10:35:32 -08:00
72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
import sys, struct
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class MapEntry():
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def __init__(self, name, size, addr):
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self.name = name
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self.size = size
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self.addr = addr
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self.strlen = (len(name) + 4) & (~3)
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def __str__(self):
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return "%s %d %s %d" % (self.addr, self.size, self.name, self.strlen)
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def __repr__(self):
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return "%s %d %s %d" % (self.addr, self.size, self.name, self.strlen)
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structDef = ">LLLL"
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symNames = []
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def remove_prefix(text, prefix):
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return text[text.startswith(prefix) and len(prefix):]
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with open(sys.argv[1]) as f: # sm64_prelim.map
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for line in f:
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if "0x000000008" in line and "=" not in line and "*" not in line and "load address" not in line:
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if ".o" in line:
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if "build/" in line or "lib/" in line:
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# object file line:
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tokens = line.split()
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if ".bss" in line or ".text" in line or ".data" in line or ".rodata" in line:
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filestartaddr = int(tokens[1], 16)
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filesize = int(remove_prefix(tokens[2], "0x"), 16)
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else:
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filestartaddr = int(tokens[0], 16)
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filesize = int(remove_prefix(tokens[1], "0x"), 16)
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if "." not in line:
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# address entry line:
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tokens = line.split()
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addr = int(tokens[0], 16)
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# position of current entry in the current file
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offsetinfile = (addr - filestartaddr)
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# the size between here and the end of the file
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size = (filesize - offsetinfile)
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# if we're past the first entry:
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if symNames:
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prevEntry = symNames[-1]
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prevAddr = prevEntry.addr
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# if the previous entry is in the same file...
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if (prevAddr >= filestartaddr):
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# modify its size so it doesn't overlap the current entry.
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prevEntry.size = (addr - prevAddr)
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name = tokens[1]
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prevEntry = symNames.append(MapEntry(name, size, addr))
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f1 = open(sys.argv[2], "wb+") # addr
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f2 = open(sys.argv[3], "wb+") # name
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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, x.size, off, len(x.name)))
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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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