1 files changed, 80 insertions, 0 deletions
diff --git a/REORG.TODO/include/alloca.h b/REORG.TODO/include/alloca.h
new file mode 100644
index 0000000000..fd90664f0a
--- /dev/null
+++ b/REORG.TODO/include/alloca.h
@@ -0,0 +1,80 @@
+#ifndef _ALLOCA_H
+
+#include <stdlib/alloca.h>
+
+# ifndef _ISOMAC
+
+#include <stackinfo.h>
+
+#undef	__alloca
+
+/* Now define the internal interfaces.  */
+extern void *__alloca (size_t __size);
+
+#ifdef	__GNUC__
+# define __alloca(size)	__builtin_alloca (size)
+#endif /* GCC.  */
+
+extern int __libc_use_alloca (size_t size) __attribute__ ((const));
+extern int __libc_alloca_cutoff (size_t size) __attribute__ ((const));
+libc_hidden_proto (__libc_alloca_cutoff)
+
+#define __MAX_ALLOCA_CUTOFF	65536
+
+#include <allocalim.h>
+
+#ifndef stackinfo_alloca_round
+# define stackinfo_alloca_round(l) (((l) + 15) & -16)
+#endif
+
+#if _STACK_GROWS_DOWN
+# define extend_alloca(buf, len, newlen) \
+  (__typeof (buf)) ({ size_t __newlen = stackinfo_alloca_round (newlen);      \
+		      char *__newbuf = __alloca (__newlen);		      \
+		      if (__newbuf + __newlen == (char *) (buf))	      \
+			len += __newlen;				      \
+		      else						      \
+			len = __newlen;					      \
+		      __newbuf; })
+#elif _STACK_GROWS_UP
+# define extend_alloca(buf, len, newlen) \
+  (__typeof (buf)) ({ size_t __newlen = stackinfo_alloca_round (newlen);      \
+		      char *__newbuf = __alloca (__newlen);		      \
+		      char *__buf = (char *) (buf);			      \
+		      if (__buf + len == __newbuf)			      \
+			{						      \
+			  len += __newlen;				      \
+			  __newbuf = __buf;				      \
+			}						      \
+		      else						      \
+			len = __newlen;					      \
+		      __newbuf; })
+#else
+# define extend_alloca(buf, len, newlen) \
+  __alloca (((len) = (newlen)))
+#endif
+
+#if defined stackinfo_get_sp && defined stackinfo_sub_sp
+# define alloca_account(size, avar) \
+  ({ void *old__ = stackinfo_get_sp ();					      \
+     void *m__ = __alloca (size);					      \
+     avar += stackinfo_sub_sp (old__);					      \
+     m__; })
+# define extend_alloca_account(buf, len, newlen, avar) \
+  ({ void *old__ = stackinfo_get_sp ();					      \
+     void *m__ = extend_alloca (buf, len, newlen);			      \
+     avar += stackinfo_sub_sp (old__);					      \
+     m__; })
+#else
+# define alloca_account(size, avar) \
+  ({ size_t s__ = (size);						      \
+     avar += s__;							      \
+     __alloca (s__); })
+# define extend_alloca_account(buf, len, newlen, avar) \
+  ({ size_t s__ = (newlen);						      \
+     avar += s__;							      \
+     extend_alloca (buf, len, s__); })
+#endif
+
+# endif /* !_ISOMAC */
+#endif