How do I tell valgrind to memcheck forked processes?

Question

I have a process x that I want to check for leaks with valgrind. The problem is that x is run by y, and y i

Answer 1

1. Valgrind follows forked processes when given the --trace-children=yes option.
2. You should be able to achieve this by using suitable filters.
3. No. Valgrind hooks into the module loading code using LD_PRELOAD, so attaching to a running process is not possible.