DynamoRIO
i#6751 trace_entry_t: pretty printer
A sequence of trace_entry_t records is what we use for on-disk representation of traces.
To keep traces compact, the fields in the trace_entry_t struct are overloaded
(i.e., they mean different things depending on the value of other fields in the struct).
We disambiguate this overloading with this "record_view" tool, which pretty prints
trace_entry_t records, explicitly stating the meaning of each field for a specific
trace_entry_t.
The tool pretty prints one trace_entry_t record per line to std::cerr.
It can be invoked with:
drrun -t drmemtrace -tool internal_record_view -infile path/to/trace.zip.
Note that -sim_refs/-skip_refs NUMBER to print/skip the first NUMBER of
trace_entry_t records is supported (useful for large traces).
To test the correctness of the printed values we compare them with the raw data using:
zcat path/to/trace.zip | od -A x -t x2 -w12 | awk '{printf "%s | %s %s %s%s%s%s\n", $1, $2, $3, $7, $6, $5, $4}'
as described here: https://dynamorio.org/page_debug_memtrace.html#autotoc_md136.
TODO: add unit tests (+ improve printing of marker values? + improve output formatting/spacing?).
Issue: #6751
