This patch adds a --log argument to spike. If not given, the behaviour
is unchanged: messages logging execution of instructions and (if
commit logging is enabled) commits go to stderr.
If --log=P is given, Spike now writes these messages to a log file at
the path P. This is nice, because they are no longer tangled up with
other errors and warnings.
The code is mostly plumbing: passing a FILE* object through to the
functions that were using stderr. I've written a simple "log_file_t"
class, which opens a log file if necessary and yields it or stderr.
the tool can parse the instruction name from spike debug log to help
dsp kernel designer check what instructions have been used
Signed-off-by: Jerry Shih <bignose1007@gmail.com>
Rupert Swarbrick
Andrew Waterman
Chih-Min Chao