Commit Graph

105 Commits

Author SHA1 Message Date
Greg Clayton 3a29bdbe9b Added a boolean to the pure virtual lldb_private::Process::CanDebug(...)
method so process plug-ins that are requested by name can answer yes when
asked if they can debug a target that might not have any file in the target.

Modified the ConnectionFileDescriptor to have both a read and a write file
descriptor. This allows us to support UDP, and eventually will allow us to
support pipes. The ConnectionFileDescriptor class also has a file descriptor
type for each of the read and write file decriptors so we can use the correct
read/recv/recvfrom call when reading, or write/send/sendto for writing.

Finished up an initial implementation of UDP where you can use the "udp://"
URL to specify a host and port to connect to:

(lldb) process connect --plugin kdp-remote udp://host:41139

This will cause a ConnectionFileDescriptor to be created that can send UDP
packets to "host:41139", and it will also bind to a localhost port that can
be given out to receive the connectionless UDP reply. 

Added the ability to get to the IPv4/IPv6 socket port number from a 
ConnectionFileDescriptor instance if either file descriptor is a socket.

The ProcessKDP can now successfully connect to a remote kernel and detach
using the above "processs connect" command!!! So far we have the following
packets working:
    KDP_CONNECT
    KDP_DISCONNECT
    KDP_HOSTINFO
    KDP_VERSION
    KDP_REATTACH

Now that the packets are working, adding new packets will go very quickly.

llvm-svn: 135363
2011-07-17 20:36:25 +00:00
Greg Clayton 4df8ddfc97 Completed more work on the KDP darwin kernel debugging Process plug-in.
Implemented connect, disconnect, reattach, version, and hostinfo.

Modified the ConnectionFileDescriptor class to be able to handle UDP. 

Added a new Stream subclass called StreamBuffer that is backed by a
llvm::SmallVector for better efficiency.

Modified the DataExtractor class to have a static function that can
dump hex bytes into a stream. This is currently being used to dump incoming
binary packet data in the KDP plug-in.

llvm-svn: 135338
2011-07-16 03:19:08 +00:00
Greg Clayton 59ec512c46 Fixed the comment lines in the file comment headers.
llvm-svn: 135284
2011-07-15 18:02:58 +00:00
Greg Clayton 57508026c2 Added the ability to connect using "tcp://<host>:<port>" which is the
same as the old "connect://<host>:<port>". Also added the ability to
connect using "udp://<host>:<port>" which will open a connected 
datagram socket. I need to find a way to specify a non connected
datagram socket as well. 

We might need to start setting some settings in the URL itself, 
maybe something like:

udp://<host>:<port>?connected=yes
udp://<host>:<port>?connected=no

I am open to suggestions for URL settings.

Also did more work on the KDP darwin kernel plug-in.

 

llvm-svn: 135277
2011-07-15 16:31:38 +00:00
Greg Clayton f9765acddd Hollowed out process plug-in to do KDP darwin kernel debugging.
llvm-svn: 135240
2011-07-15 03:27:12 +00:00