1 files changed, 54 insertions, 0 deletions
diff --git a/sysdeps/generic/bb_init_func.c b/sysdeps/generic/bb_init_func.c
new file mode 100644
index 0000000000..0c768c3c2d
--- /dev/null
+++ b/sysdeps/generic/bb_init_func.c
@@ -0,0 +1,54 @@
+/* Copyright (C) 1996 Free Software Foundation, Inc.
+   Contributed by David Mosberger (davidm@cs.arizona.edu).
+
+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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* __bb_init_func is invoked at the beginning of each function, before
+any registers have been saved.  This generic routine should work
+provided that calling this function doesn't mangle the arguments
+passed to the function being called.  If that's not the case, a system
+specific routine must be provided. */
+
+#include <sys/types.h>
+#include <sys/gmon.h>
+
+#include <ansidecl.h>
+#include <stdlib.h>
+
+void
+DEFUN(__bb_init_func, (bb), struct __bb *bb)
+{
+  struct gmonparam *p = &_gmonparam;
+
+  if (bb->zero_word != 0)
+    {
+      return;	/* handle common case quickly */
+    }
+
+  /* insert this basic-block into basic-block list: */
+  bb->zero_word = 1;
+  bb->next = __bb_head;
+  __bb_head = bb;
+
+  if (bb->next == 0 && p->state != GMON_PROF_ON)
+    {
+      /* we didn't register _mcleanup yet and pc profiling doesn't seem
+	 to be active, so let's register it now: */
+      atexit(_mcleanup);
+    }
+}