From 694605b44cd3574bc0b66d0d4a4fa4f3bc7727a3 Mon Sep 17 00:00:00 2001
From: hunt <hunt>
Date: Wed, 1 Feb 2006 20:21:27 +0000
Subject: 2006-02-01  Martin Hunt  <hunt@redhat.com>

	* syscalls.stp: New syscall file.
	* syscall2.stp: More syscalls.
	* i686/syscalls.stp: x86-specific calls.
	* x86_64/syscalls.stp: x86_64-specific calls.
---
 tapset/conversions.stp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'tapset/conversions.stp')

diff --git a/tapset/conversions.stp b/tapset/conversions.stp
index 51f9de19..9d50ca62 100644
--- a/tapset/conversions.stp
+++ b/tapset/conversions.stp
@@ -41,3 +41,19 @@ function user_string:string (addr:long) %{
     CONTEXT->last_error = errmsg;
   }
 %}
+
+function user_string_safe:string (addr:long, n:long) %{
+  long rc;
+  if (n > MAXSTRINGLEN)
+	n = MAXSTRINGLEN;
+  rc = _stp_strncpy_from_user (THIS->__retvalue, 
+		 	            (const char __user*) (uintptr_t) THIS->addr,
+				    MAXSTRINGLEN);
+  if (rc < 0)
+  {
+    static char errmsg[40];
+    snprintf (errmsg, 40, "user string copy fault at 0x%p",
+	 (void *) (uintptr_t) THIS->addr);
+    CONTEXT->last_error = errmsg;
+  }
+%}
-- 
cgit