RFA: Add 'target |' support for MinGW

[Michael Snyder]

Jim Blandy wrote:
> On 4/13/06, Eli Zaretskii <eliz@gnu.org> wrote:
> 
>>>Cc: gdb-patches@sources.redhat.com
>>>From: Jim Blandy <jimb@codesourcery.com>
>>>Date: Wed, 12 Apr 2006 11:38:55 -0700
>>>
>>>
>>>>Do we really want binary I/O in _all_ situations?  Can it be that,
>>>>depending on the command on the other side of the pipe, someone would
>>>>like the CR characters to be stripped from the EOLs in the incoming
>>>>stuff?  The way you wrote it, AFAICS, binary I/O is always used, no
>>>>matter what.
>>>
>>>Well, the pipe is carrying the GDB remote protocol, which is happier
>>>with binary.
>>
>>Do we never ask the remote to list text files, for example?
> 
> 
> No, we don't.  Text is always encoded in hex, to avoid any munging of
> this sort.  And for goodness' sake, we wouldn't want line ending
> conversion happening magically in the protocol's transport layer! 
> That should be done explicitly in GDB.

Jim's right -- the gdb protocol should be regarded as a binary
protocol, even though a lot of it looks like ASCII.  We never
send text "in the clear".  Even when we're simulating stdout,
we send the strings encoded.  And part of the msg traffic is
definitely *not* ascii, so CR/LF conversion would be a very
bad thing.