|perf supports a simple JIT interface to resolve symbols for dynamic code generated
|by a JIT.
|The JIT has to write a /tmp/perf-%d.map (%d = pid of process) file
|This is a text file.
|Each line has the following format, fields separated with spaces:
|START SIZE symbolname
|START and SIZE are hex numbers without 0x.
|symbolname is the rest of the line, so it could contain special characters.
|The ownership of the file has to match the process.