While working with Valgrind tool, i need to log the details produced by valgrind tool. How can I accomplish that? I tried something like,
valgrind a.out | test
and
valgrind a.out > test
It gave just the program's output and not the valgrind memory error,leak information. Even i am getting like this if the program requires no user interaction (i.e. giving input). If the program need user input even that thing itself won't work.
How can I do this?
valgrind --log-file="filename"
By default, Valgrind writes its output to stderr. So you need to do something like:
valgrind a.out > log.txt 2>&1
Alternatively, you can tell Valgrind to write somewhere else; see http://valgrind.org/docs/manual/manual-core.html#manual-core.comment (but I've never tried this).
You can also set the options --log-fd if you just want to read your logs with a less. For example :
valgrind --log-fd=1 ls | less
来源：https://stackoverflow.com/questions/8355979/how-to-redirect-valgrinds-output-to-a-file