Two minor issues

["Dr. Rolf Jansen" <rolf dot anroni at gmail dot com>]

6.8.50.20080826-cvs
This GDB was configured as "--host=powerpc-apple-darwin9.4.0 -- 
target=i386-mingw32msvc"

  1.   remote.c does not compile because the new function  
remote_bfd_iovec_stat() makes a reference to the stat structure and  
that is not defined by default on MaC OS X. In order to fix this I  
added "#include <sys/stat.h>" somewhere at the top of the file.


  2.   quite at the top of objc-lang.c the Class structure is declared:

   struct objc_class {
     CORE_ADDR isa;
     CORE_ADDR super_class;
     CORE_ADDR name;
     long version;
     long info;
     long instance_size;
     CORE_ADDR ivars;
     CORE_ADDR methods;
     CORE_ADDR cache;
     CORE_ADDR protocols;
   };

In read_objc_class() a variable of that struct type is filled with the  
contents at a CORE_ADDR:

   static void
   read_objc_class (CORE_ADDR addr, struct objc_class *class)
   {
     class->isa = read_memory_unsigned_integer (addr, 4);
     class->super_class = read_memory_unsigned_integer (addr + 4, 4);
     class->name = read_memory_unsigned_integer (addr + 8, 4);
     class->version = read_memory_unsigned_integer (addr + 12, 4);
     class->info = read_memory_unsigned_integer (addr + 16, 4);
     class->instance_size = read_memory_unsigned_integer (addr + 18,  
4);
     class->ivars = read_memory_unsigned_integer (addr + 24, 4);
     class->methods = read_memory_unsigned_integer (addr + 28, 4);
     class->cache = read_memory_unsigned_integer (addr + 32, 4);
     class->protocols = read_memory_unsigned_integer (addr + 36, 4);
   }

As a matter of fact, this code works only for targets with a pointer- 
size and long-size of 4-bytes, but even with this, the offset to class- 
>instance_size shall be 20 and not 18.

Is there a global way to find out at compile-time at the build or host  
system the ptr-size and the long-size of the configured target  
machine, something like size_attarget_of()?

Best regards

Rolf