Support of gdb for Windows 64 native systems

[Christopher Faylor]

On Sun, Oct 14, 2007 at 01:32:45PM -0700, Joel Brobecker wrote:
>[moved to gdb-patches as well]
>
>> What's done:
>> 
>> 	- Added mingw.mh, mingw.mt as copies from the cygwin files.
>> 	- Updated configure.tgt to set gdb_target.
>> 	- Disabled cygwin specific functionality in win32-nat.c.  As can
>> 	be seen, the changes are very small.
>> 	- profs.h isn't needed anymore, since I've implemented cygwin 
>> 	cross-core support a few weeks ago (in i386-cygwin-tdep.c).
>>       The include can be unconditionally removed.
>
>Nice!
>
>> What's next:
>> 
>> 	Test with a mingw built libexpat to test dll support.
>
>Done. Seems to be working well:
>
>    (top-gdb) info dll
>    From        To          Syms Read   Shared Object Library
>    0x7c901000  0x7c9afe88  Yes         C:\WINDOWS\system32\ntdll.dll
>    0x7c801000  0x7c8f4bec  Yes         C:\WINDOWS\system32\kernel32.dll
>    0x77c11000  0x77c67d74  Yes         C:\WINDOWS\system32\msvcrt.dll
>    0x7e411000  0x7e49fde8  Yes         C:\WINDOWS\system32\user32.dll
>    0x77f11000  0x77f568a0  Yes         C:\WINDOWS\system32\gdi32.dll
>    0x71ab1000  0x71ac6dc8  Yes         C:\WINDOWS\system32\ws2_32.dll
>    0x71aa1000  0x71aa7324  Yes         C:\WINDOWS\system32\ws2help.dll
>    0x77dd1000  0x77e6ab38  Yes         C:\WINDOWS\system32\advapi32.dll
>    0x77e71000  0x77f003f8  Yes         C:\WINDOWS\system32\rpcrt4.dll
>
>> 	Rename a few things, which really aren't cygwin specific, like:
>> 		* cygwin_get_dr6 -> win32_get_dr6
>> 		* i386-cygwin-tdep.h -> i386-win32-tdep.h
>> 		* nm-cygwin.h -> nm-cygming.h
>
>I propose we use "windows" instead of either "win32" or "cygming".
>It seems more descriptive to me, and also avoids the "32", since
>eventually we might want to add support for 64-bit windows....

I don't really care about this but the "cygming" probably comes from
similar naming in gcc.

I believe that RMS has objections to the name "win32" and "win64", too.
So, whatever we use, it shouldn't have the abbreviation "win" in it.

cgf