mirror of https://github.com/geohot/qira
66 lines
1.5 KiB
Python
Executable File
66 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python2.7
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import struct
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IS_VALID = 0x80000000
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IS_WRITE = 0x40000000
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IS_MEM = 0x20000000
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IS_START = 0x10000000
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IS_BIGE = 0x08000000 # not supported
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SIZE_MASK = 0xFF
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LOGFILE = "/tmp/qira_log"
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LOGDIR = "/tmp/qira_logs/"
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def flag_to_type(flags):
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if flags & IS_START:
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typ = "I"
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elif flags & IS_WRITE and flags & IS_MEM:
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typ = "S"
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elif not flags & IS_WRITE and flags & IS_MEM:
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typ = "L"
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elif flags & IS_WRITE and not flags & IS_MEM:
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typ = "W"
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elif not flags & IS_WRITE and not flags & IS_MEM:
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typ = "R"
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return typ
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def get_log_length(f):
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try:
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f.seek(0)
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dat = f.read(4)
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return struct.unpack("I", dat)[0]
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except:
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return None
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def read_log(f, seek=1, cnt=0):
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f.seek(seek*0x18)
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if cnt == 0:
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dat = f.read()
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else:
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dat = f.read(cnt * 0x18)
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ret = []
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for i in range(0, len(dat), 0x18):
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(address, data, clnum, flags) = struct.unpack("QQII", dat[i:i+0x18])
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if not flags & IS_VALID:
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break
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ret.append((address, data, clnum, flags))
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return ret
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def write_log(fn, dat):
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# untested
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ss = [struct.pack("I", len(dat)) + "\x00"*0x14]
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for (address, data, clnum, flags) in dat:
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ss.append(struct.pack("QQII", address, data, clnum, flags))
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f = open(fn, "wb")
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f.write(''.join(ss))
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f.close()
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if __name__ == "__main__":
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import sys
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# standalone this can dump a log
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for (address, data, clnum, flags) in read_log(open(sys.argv[1])):
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print("%4d: %X -> %X %X" % (clnum, address, data, flags))
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