* child_info.h (CURR_CHILD_INFO_MAGIC): Reset.

(child_info_fork::mount_table): Remove.
(child_info_fork::myself_addr): Remove.
* fork.cc (fork_child): Don't set either of the above.
* dcrt0.cc (dll_crt0_1): Call memory_init as early as possible.
* fhandler_console.cc (console_state): Move to shared_info.h.
(fhandler_console::get_tty_stuff): Reflect open_shared arg change.
* pinfo.cc (myself_addr): Remove definition.
(pinfo::init): Get myself address from open_shared.
* pinfo.h (myself_addr): Remove declaration.
* shared.cc (open_shared): Rework so that known shared memory locations are
protected.  Take shared memory type as fifth argument.
(memory_init): Reflect open_shared arg change.
* shared_info.h (shared_locations): New enum.
(console_state): Move here.
(open_shared): Reflect open_shared arg change in declaration.

winsup/cygwin/fork.cc

@@ -422,8 +422,6 @@ fork_parent (HANDLE& hParent, dll *&first_dll,
   init_child_info (PROC_FORK, &ch, 1, subproc_ready);
 
   ch.forker_finished = forker_finished;
-  ch.mount_table = mount_table;
-  ch.myself_addr = myself_addr;
 
   stack_base (ch);