Moved userspace libc to posix container directory.

Issues:
- MM0 needs separate subset of libc and not link with libposix
- FS0 needs separate subset of libc and not link with libposix
- libposix need transforming into a full-blown uclibc for test0
- libc really is a pseudo-libc that needs to be replaced as above.
- Done some hacking to avoid conflicts between pseudo-libc and libposix headers.

Now system working as original, (e.g. execve etc. working)

containers/posix/fs0/main.c

@@ -122,7 +122,7 @@ void handle_fs_requests(void)
 	default:
 		printf("%s: Unrecognised ipc tag (%d) "
 		       "received from tid: %d. Ignoring.\n", __TASKNAME__,
-		       mr[MR_TAG], sender);
+		       mr[MR_TAG], senderid);
 	}
 
 	/* Reply */

containers/posix/fs0/src/memfs/memfs.c

@@ -192,7 +192,7 @@ struct superblock *memfs_get_superblock(void *block)
 		return 0;
 	}
 	if (sb->magic != MEMFS_MAGIC) {
-		printf("%s: Magic number not match: %s\n", __FUNCTION__, sb->magic);
+		printf("%s: Magic number not match: %u\n", __FUNCTION__, sb->magic);
 		return 0;
 	}
 

containers/posix/libc/include/errno.h

@@ -88,11 +88,17 @@
 #ifndef _ERRNO_H_
 #define _ERRNO_H_
 
+#ifndef EDOM
 #define EDOM 1
+#endif
+#ifndef EILSEQ
 #define EILSEQ 2
+#endif
+#ifndef ERANGE
 #define ERANGE 3
+#endif
 
-#include <l4/thread.h>
+//#include <l4/thread.h>
  
 #ifndef THREAD_SAFE
 extern int errno;

containers/posix/libc/include/stddef.h

@@ -111,7 +111,9 @@ typedef __SIZE_TYPE__ size_t;
 		       things such as varargs and printf */
 typedef __WCHAR_TYPE__ wchar_t;
 #endif
+#ifndef NULL
 #define NULL ((void *)0)
+#endif
 #define offsetof(type, member) ((size_t) &((type *)0)->member)
 
 #endif /* _STDDEF_H_ */

containers/posix/libc/include/stdio.h

@@ -136,9 +136,15 @@ typedef long fpos_t; /* same */
 #define FILENAME_MAX 37
 #define L_tmpnam 37
 
+#ifndef SEEK_CUR
 #define SEEK_CUR 0
+#endif
+#ifndef SEEK_END
 #define SEEK_END 1
+#endif
+#ifndef SEEK_SET
 #define SEEK_SET 2
+#endif
 
 #define TMP_MAX 37