Enable no-op gcpros on ia64.

(GC_MARK_SECONDARY_STACK) [__ia64__]: Define.

1 files changed, 12 insertions, 2 deletions

diff --git a/src/s/gnu-linux.h b/src/s/gnu-linux.h
index 033ce49293a..3cf21756d7d 100644
--- a/src/s/gnu-linux.h
+++ b/src/s/gnu-linux.h
@@ -1,5 +1,5 @@
 /* This file is the configuration file for Linux-based GNU systems
-   Copyright (C) 1985, 86, 92, 94, 96, 1999, 2002 Free Software Foundation, Inc.
+   Copyright (C) 1985, 86, 92, 94, 96, 1999, 2002, 2004 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -355,12 +355,22 @@ Boston, MA 02111-1307, USA.  */
 
 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
     || defined __alpha__ || defined __mips__ || defined __s390__ \
-    || defined __arm__ || defined __powerpc__ || defined __amd64__
+    || defined __arm__ || defined __powerpc__ || defined __amd64__ \
+    || defined __ia64__
 #define GC_SETJMP_WORKS 1
 #define GC_MARK_STACK GC_MAKE_GCPROS_NOOPS
 #ifdef __mc68000__
 #define GC_LISP_OBJECT_ALIGNMENT 2
 #endif
+#ifdef __ia64__
+#define GC_MARK_SECONDARY_STACK()                               \
+  do {                                                          \
+    extern void *__libc_ia64_register_backing_store_base;       \
+    __builtin_ia64_flushrs ();                                  \
+    mark_memory (__libc_ia64_register_backing_store_base,       \
+                 __builtin_ia64_bsp ());                        \
+  } while (0)
+#endif
 #endif
 
 /* arch-tag: 6244ea2a-abd0-44ec-abec-ff3dcc9afea9