Imported gcc-4.4.3

[msp430-gcc.git] / boehm-gc / gc_dlopen.c

diff --git a/boehm-gc/gc_dlopen.c b/boehm-gc/gc_dlopen.c
deleted file mode 100644 (file)
index eafaa2b..0000000
--- a/boehm-gc/gc_dlopen.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright (c) 1991-1994 by Xerox Corporation.  All rights reserved.
- * Copyright (c) 1997 by Silicon Graphics.  All rights reserved.
- * Copyright (c) 2000 by Hewlett-Packard Company.  All rights reserved.
- *
- * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
- * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
- *
- * Permission is hereby granted to use or copy this program
- * for any purpose,  provided the above notices are retained on all copies.
- * Permission to modify the code and to distribute modified code is granted,
- * provided the above notices are retained, and a notice that the code was
- * modified is included with the above copyright notice.
- *
- * Original author: Bill Janssen
- * Heavily modified by Hans Boehm and others
- */
-
-/*
- * This used to be in dyn_load.c.  It was extracted into a separate file
- * to avoid having to link against libdl.{a,so} if the client doesn't call
- * dlopen.  -HB
- */
-
-#include "private/gc_priv.h"
-
-# if defined(GC_PTHREADS) || defined(GC_SOLARIS_THREADS)
-
-# if defined(dlopen) && !defined(GC_USE_LD_WRAP)
-    /* To support various threads pkgs, gc.h interposes on dlopen by     */
-    /* defining "dlopen" to be "GC_dlopen", which is implemented below.  */
-    /* However, both GC_FirstDLOpenedLinkMap() and GC_dlopen() use the   */
-    /* real system dlopen() in their implementation. We first remove     */
-    /* gc.h's dlopen definition and restore it later, after GC_dlopen(). */
-#   undef dlopen
-# endif
-
-  /* Make sure we're not in the middle of a collection, and make       */
-  /* sure we don't start any.  Returns previous value of GC_dont_gc.   */
-  /* This is invoked prior to a dlopen call to avoid synchronization   */
-  /* issues.  We can't just acquire the allocation lock, since startup         */
-  /* code in dlopen may try to allocate.                               */
-  /* This solution risks heap growth in the presence of many dlopen    */
-  /* calls in either a multithreaded environment, or if the library    */
-  /* initialization code allocates substantial amounts of GC'ed memory.        */
-  /* But I don't know of a better solution.                            */
-  /* This can still deadlock if the client explicitly starts a GC      */
-  /* during the dlopen.  He shouldn't do that.                         */
-  static GC_bool disable_gc_for_dlopen()
-  {
-    GC_bool result;
-    LOCK();
-    result = GC_dont_gc;
-    while (GC_incremental && GC_collection_in_progress()) {
-       GC_collect_a_little_inner(1000);
-    }
-    GC_dont_gc = TRUE;
-    UNLOCK();
-    return(result);
-  }
-
-  /* Redefine dlopen to guarantee mutual exclusion with        */
-  /* GC_register_dynamic_libraries.                    */
-  /* Should probably happen for other operating        systems, too. */
-
-#include <dlfcn.h>
-
-#ifdef GC_USE_LD_WRAP
-  void * __wrap_dlopen(const char *path, int mode)
-#else
-  void * GC_dlopen(path, mode)
-  GC_CONST char * path;
-  int mode;
-#endif
-{
-    void * result;
-    GC_bool dont_gc_save;
-    
-#   ifndef USE_PROC_FOR_LIBRARIES
-      dont_gc_save = disable_gc_for_dlopen();
-#   endif
-#   ifdef GC_USE_LD_WRAP
-      result = (void *)__real_dlopen(path, mode);
-#   else
-      result = dlopen(path, mode);
-#   endif
-#   ifndef USE_PROC_FOR_LIBRARIES
-      GC_dont_gc = dont_gc_save;
-#   endif
-    return(result);
-}
-# endif  /* GC_PTHREADS || GC_SOLARIS_THREADS ... */
-
-
-