Extend the "target remote" and "target extended-remote" commands
such that if the filename provided is a Unix local domain (AF_UNIX)
socket, then it'll be treated as such, instead of trying to open
it as if it were a character device.
gdb/ChangeLog:
* NEWS: Mention changed commands.
* ser-uds.c: New file.
* configure.ac (SER_HARDWIRE): Add ser-uds.o.
* configure: Regenerate.
* Makefile.in: Add new file.
* serial.c (serial_open): Check if filename is a socket
and lookup the appropriate interface accordingly.
gdb/doc/ChangeLog:
* gdb.texinfo (Remote Connection Commands): Describe
the changes to target remote and target extended-remote
relating to Unix domain sockets.
John Darrington