* child_info. (CURR_CHILD_INFO_MAGIC): Refresh.

(child_info::child_info()): New constructor.
(child_info_spawn::child_info_spawn()): Ditto.
(child_info_spawn::operator new): New operator.
(child_info_spawn::set): New function.
* spawn.cc (av()): New constructor.
(av::operator new): New operator.
(av::set): New function.
(spawn_guts): Reorganize so that classes which allocates are defined early in
the function so that it can be properly cleaned up after an efault.  Set errno
to E2BIG in the event of a SEGV situation.

1 files changed, 5 insertions, 1 deletions

diff --git a/winsup/cygwin/child_info.h b/winsup/cygwin/child_info.h
index c079fe226..dc6a72457 100644
--- a/winsup/cygwin/child_info.h
+++ b/winsup/cygwin/child_info.h
@@ -29,7 +29,7 @@ enum child_info_types
 
 #define EXEC_MAGIC_SIZE sizeof(child_info)
 
-#define CURR_CHILD_INFO_MAGIC 0x5eecb012U
+#define CURR_CHILD_INFO_MAGIC 0x38772070U
 
 /* NOTE: Do not make gratuitous changes to the names or organization of the
    below class.  The layout is checksummed to determine compatibility between
@@ -51,6 +51,7 @@ public:
   DWORD dwProcessId;
   unsigned fhandler_union_cb;
   child_info (unsigned, child_info_types, bool);
+  child_info (): subproc_ready (NULL), parent (NULL) {}
   ~child_info ();
   void ready (bool);
   bool sync (int, HANDLE, DWORD) __attribute__ ((regparm (3)));
@@ -104,7 +105,10 @@ public:
 	cfree (moreinfo);
       }
   }
+  child_info_spawn (): moreinfo (NULL) {};
   child_info_spawn (child_info_types, bool);
+  void *operator new (size_t, void *p) __attribute__ ((nothrow)) {return p;}
+  void set (child_info_types ci, bool b) { new (this) child_info_spawn (ci, b);}
 };
 
 void __stdcall init_child_info (DWORD, child_info *, HANDLE);