From 6d7aee59de0264b0bcaabd85498b8bb7f977cebe Mon Sep 17 00:00:00 2001
From: fche <fche>
Date: Mon, 18 Dec 2006 11:31:26 +0000
Subject: 2006-12-18  Frank Ch. Eigler  <fche@elastic.org>

	PR 3079
	* loc2c-runtime.h (deref, store_deref): Fork x86 and x86-64
	variants.  Remove dysfunctional 64-bit ops from x86.

2006-12-18  Frank Ch. Eigler  <fche@elastic.org>

	* vfs.stp (ppos_pos): Protect contents with deref(), though
	this blocks operation on i686 due to bug #3079.
---
 tapset/vfs.stp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'tapset/vfs.stp')

diff --git a/tapset/vfs.stp b/tapset/vfs.stp
index 16c51b17..b121d5b9 100644
--- a/tapset/vfs.stp
+++ b/tapset/vfs.stp
@@ -37,7 +37,12 @@ function __find_bdevname(dev, bdev)
 
 function ppos_pos:long (ppos:long) %{ /* pure */
 	loff_t *ppos = (loff_t *)(long)THIS->ppos;
-	THIS->__retvalue = (int64_t)*ppos;
+        /* XXX: but see bug #3079 */
+	THIS->__retvalue = (int64_t) deref (sizeof(loff_t), ppos);
+	if (0) {
+deref_fault:
+		CONTEXT->last_error = "pointer dereference fault";
+	}
 %}
 
 function __page_ino:long (page:long) %{ /* pure */
-- 
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