* dll_init.cc (dll_list::find_by_modname): New function to search the dll list

for a module name only (no path).
(dll_list::alloc): Initialize newly-added members of struct dll.
(dll_list::append): New function to factor out the append operation
(used by dll_list::topsort).
(dll_list::populate_deps): New function to identify dll dependencies.
(dll_list::topsort): New function to sort the dll list topologically by
dependencies.
(dll_list::topsort_visit): New helper function for the above.
* dll_init.h (dll::ndeps): New class member.
(dll::deps): Ditto.
(dll::modname): Ditto.
(dll_list::find_by_modname): New function related to topsort.
(dll_list::populate_all_deps): Ditto.
(dll_list::populate_deps): Ditto.
(dll_list::topsort): Ditto.
(dll_list::topsort_visit): Ditto.
(dll_list::append): Ditto.
(pefile): New struct allowing simple introspection of dll images.
* fork.cc (fork): Topologically sort the dll list before forking
* child_info.h (CURR_CHILD_INFO_MAGIC): Refresh.
(child_info::refresh_cygheap): New function.
* spawn.cc (spawn_guts): Call refresh_cygheap before creating a new process to
ensure that cygheap_max is up-to-date.
* fork.cc (frok::parent): Ditto.

1 files changed, 10 insertions, 0 deletions

diff --git a/winsup/cygwin/dll_init.h b/winsup/cygwin/dll_init.h
index dc5c57038..ea3f628a2 100644
--- a/winsup/cygwin/dll_init.h
+++ b/winsup/cygwin/dll_init.h
@@ -52,6 +52,9 @@ struct dll
   int count;
   bool has_dtors;
   dll_type type;
+  long ndeps;
+  dll** deps;
+  PWCHAR modname;
   DWORD image_size;
   WCHAR name[1];
   void detach ();
@@ -85,6 +88,13 @@ public:
   void detach (void *);
   void init ();
   void load_after_fork (HANDLE);
+  dll *find_by_modname (const PWCHAR name);
+  void populate_all_deps ();
+  void populate_deps (dll* d);
+  void topsort ();
+  void topsort_visit (dll* d, bool goto_tail);
+  void append (dll* d);
+  
   dll *inext ()
   {
     while ((hold = hold->next))