33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
import sys, struct
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patchfp = open(sys.argv[1], 'rb')
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def read(f, size):
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result = f.read(size)
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if len(result) != size: raise Exception('truncated')
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return result
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print '#define P32(a, b) *((volatile unsigned int *) a) = b;'
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print '#define P8(a, b) *((volatile unsigned char *) a) = b;'
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while True:
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namelen = patchfp.read(4)
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if len(namelen) == 0: break
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if len(namelen) != 4: raise Exception('truncated')
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name = read(patchfp, struct.unpack('I', namelen)[0])
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addr, = struct.unpack('I', read(patchfp, 4))
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data = read(patchfp, struct.unpack('I', read(patchfp, 4))[0])
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if name == 'sysent patch':
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sysent_patch, = struct.unpack('I', data)
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elif name == 'sysent patch orig':
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sysent_patch_orig, = struct.unpack('I', data)
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elif name == 'scratch':
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scratch, = struct.unpack('I', data)
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if addr == 0 or len(data) == 0 or name.startswith('+'): # in place only
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continue
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print '// %s' % name
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for b in xrange(0, len(data) - 3, 4):
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print 'P32(0x%x, 0x%x);' % (addr + b, struct.unpack('I', data[b:b+4])[0])
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for b in xrange(b + 4, len(data)):
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print 'P8(0x%x, 0x%x);' % (addr + b, ord(data[b]))
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