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authorUlrich Drepper <drepper@redhat.com>2009-07-27 13:23:00 -0700
committerUlrich Drepper <drepper@redhat.com>2009-07-27 13:23:00 -0700
commit87cfd82a1fc269635c9b0dd37c47470b5465e775 (patch)
treea1867085d05cc16cf2939393a25d16f0079e3daf /elf/dl-scope.c
parent2d0671cbbdade9013d6fd5153d01bd5e1d3f60cb (diff)
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Break out _dl_scope_free into its own file.
This reduces the coarse static callgraph that can be discovered by
looking at the object files.
Diffstat (limited to 'elf/dl-scope.c')
-rw-r--r--elf/dl-scope.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/elf/dl-scope.c b/elf/dl-scope.c
new file mode 100644
index 0000000000..229177ed34
--- /dev/null
+++ b/elf/dl-scope.c
@@ -0,0 +1,58 @@
+/* Memory handling for the scope data structures.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <stdlib.h>
+#include <ldsodefs.h>
+#include <sysdep-cancel.h>
+
+
+int
+_dl_scope_free (void *old)
+{
+  struct dl_scope_free_list *fsl;
+#define DL_SCOPE_FREE_LIST_SIZE (sizeof (fsl->list) / sizeof (fsl->list[0]))
+
+  if (RTLD_SINGLE_THREAD_P)
+    free (old);
+  else if ((fsl = GL(dl_scope_free_list)) == NULL)
+    {
+      GL(dl_scope_free_list) = fsl = malloc (sizeof (*fsl));
+      if (fsl == NULL)
+	{
+	  THREAD_GSCOPE_WAIT ();
+	  free (old);
+	  return 1;
+	}
+      else
+	{
+	  fsl->list[0] = old;
+	  fsl->count = 1;
+	}
+    }
+  else if (fsl->count < DL_SCOPE_FREE_LIST_SIZE)
+    fsl->list[fsl->count++] = old;
+  else
+    {
+      THREAD_GSCOPE_WAIT ();
+      while (fsl->count > 0)
+	free (fsl->list[--fsl->count]);
+      return 1;
+    }
+  return 0;
+}