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authorJohn Beppu <beppu@lbox.org>2000-08-21 22:17:17 +0000
committerJohn Beppu <beppu@lbox.org>2000-08-21 22:17:17 +0000
commit5173b6de5bb8ec5ff2e6de7e44fbbf49b55ed7d7 (patch)
treef9a99fe730775ed7ec748a699ebdf4686a26c0d0
parent84866232d9644a02d613e11710d0f3abe8c7a66e (diff)
+ added alloca() support for all architectures
by way of gcc's __builtin_alloca(). I think I did it right, but we'll see.
-rw-r--r--include/alloca.h41
-rw-r--r--include/stdlib.h4
2 files changed, 45 insertions, 0 deletions
diff --git a/include/alloca.h b/include/alloca.h
new file mode 100644
index 000000000..741eca743
--- /dev/null
+++ b/include/alloca.h
@@ -0,0 +1,41 @@
+/* Copyright (C) 1992, 1996, 1997, 1998 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 _ALLOCA_H
+#define _ALLOCA_H 1
+
+#include <features.h>
+
+#define __need_size_t
+#include <stddef.h>
+
+__BEGIN_DECLS
+
+/* Remove any previous definitions. */
+#undef alloca
+
+/* Allocate a block that will be freed when the calling function exits. */
+extern __ptr_t alloca __P ((size_t __size));
+
+#ifdef __GNUC__
+# define alloca(size) __builtin_alloca (size)
+#endif /* GCC. */
+
+__END_DECLS
+
+#endif /* alloca.h */
diff --git a/include/stdlib.h b/include/stdlib.h
index fefaf447a..d323d099b 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -28,6 +28,10 @@ extern void * calloc __P ((size_t, size_t));
extern void free __P ((void *));
extern void * realloc __P ((void *, size_t));
+#if defined __USE_GNU || defined __USE_BSD || defined __USE_MISC
+# include <alloca.h>
+#endif /* Use GNU, BSD, or misc. */
+
#ifdef DEBUG_MALLOC
extern void * malloc_dbg __P ((size_t, char* func, char* file, int line));