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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
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tree15f07c4c43d635959c6afee96bde71fb1b3614ee /sysdeps/sparc/alloca.S
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+/* Copyright (C) 1994 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., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#include "DEFS.h"
+
+/* Code produced by Sun's C compiler calls this function with two extra
+ arguments which it makes relocatable symbols but seem always to be
+ the constant 96; I have no idea what they are for. */
+
+#ifndef NO_UNDERSCORES
+#define __builtin_alloca ___builtin_alloca
+#endif
+
+FUNC (__builtin_alloca)
+ sub %sp, %o0, %sp /* Push some stack space. */
+ retl /* Return; the returned buffer leaves 96 */
+ add %sp, 96, %o0 /* bytes of register save area at the top. */