1 files changed, 70 insertions, 0 deletions
diff --git a/malloc/mcheck.h b/malloc/mcheck.h
new file mode 100644
index 0000000000..17ab0a9ced
--- /dev/null
+++ b/malloc/mcheck.h
@@ -0,0 +1,70 @@
+/* Copyright (C) 1996 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 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _MCHECK_H
+#define _MCHECK_H	1
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#if defined (__cplusplus) || (defined (__STDC__) && __STDC__)
+#undef  __P
+#define __P(args)       args
+#undef  __ptr_t
+#define __ptr_t         void *
+#else /* Not C++ or ANSI C.  */
+#undef  __P
+#define __P(args)       ()
+#undef  __ptr_t
+#define __ptr_t         char *
+#endif /* C++ or ANSI C.  */
+
+
+/* Return values for `mprobe': these are the kinds of inconsistencies that
+   `mcheck' enables detection of.  */
+enum mcheck_status
+  {
+    MCHECK_DISABLED = -1,       /* Consistency checking is not turned on.  */
+    MCHECK_OK,                  /* Block is fine.  */
+    MCHECK_FREE,                /* Block freed twice.  */
+    MCHECK_HEAD,                /* Memory before the block was clobbered.  */
+    MCHECK_TAIL                 /* Memory after the block was clobbered.  */
+  };
+
+
+/* Activate a standard collection of debugging hooks.  This must be called
+   before `malloc' is ever called.  ABORTFUNC is called with an error code
+   (see enum above) when an inconsistency is detected.  If ABORTFUNC is
+   null, the standard function prints on stderr and then calls `abort'.  */
+extern int mcheck __P ((void (*__abortfunc) __P ((enum mcheck_status))));
+
+/* Check for aberrations in a particular malloc'd block.  You must have
+   called `mcheck' already.  These are the same checks that `mcheck' does
+   when you free or reallocate a block.  */
+extern enum mcheck_status mprobe __P ((__ptr_t __ptr));
+
+/* Activate a standard collection of tracing hooks.  */
+extern void mtrace __P ((void));
+extern void muntrace __P ((void));
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif /* mcheck.h */