amazingly we never did that before. Caused us to run out of
file descriptors in twolf.
sim/process.cc:
Add free_fd() method to free closed target fd in simulator fd map.
Rename open_fd() to alloc_fd() for symmetry with free_fd().
sim/process.hh:
Add free_fd() method to free closed target fd in simulator fd map.
Rename open_fd() to alloc_fd() for symmetry with free_fd().
Crank up MAX_FD while we're at it.
sim/syscall_emul.cc:
Call free_fd() on process when target closes a file.
sim/syscall_emul.hh:
Process open_fd() renamed to alloc_fd().
--HG--
extra : convert_revision : d780f4ccfd5a0989230b0afbdbd276212b87550c
4410876773