[src/trunk]: src/include/ssp proved an __ssp_check macro.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d2d94546dfca
branches:  trunk
changeset: 761372:d2d94546dfca
user:      christos <christos%NetBSD.org@localhost>
date:      Tue Jan 25 19:13:44 2011 +0000

description:
proved an __ssp_check macro.

diffstat:

 include/ssp/ssp.h |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (26 lines):

diff -r 7d841d138567 -r d2d94546dfca include/ssp/ssp.h
--- a/include/ssp/ssp.h Tue Jan 25 19:13:26 2011 +0000
+++ b/include/ssp/ssp.h Tue Jan 25 19:13:44 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ssp.h,v 1.6 2011/01/20 02:58:17 christos Exp $ */
+/*     $NetBSD: ssp.h,v 1.7 2011/01/25 19:13:44 christos Exp $ */
 
 /*-
  * Copyright (c) 2006 The NetBSD Foundation, Inc.
@@ -54,12 +54,14 @@
 #define __ssp_bos(ptr) __builtin_object_size(ptr, __SSP_FORTIFY_LEVEL > 1)
 #define __ssp_bos0(ptr) __builtin_object_size(ptr, 0)
 
+#define __ssp_check(buf, len, bos) \
+       if (bos(buf) != (size_t)-1 && len > bos(buf)) \
+               __chk_fail()
 #define __ssp_redirect_raw(rtype, fun, args, call, bos) \
 rtype __ssp_weak_name(fun) args; \
 __ssp_inline rtype fun args; \
 __ssp_inline rtype fun args { \
-       if (bos(__buf) != (size_t)-1 && __len > bos(__buf)) \
-               __chk_fail(); \
+       __ssp_check(__buf, __len, bos); \
        return __ssp_weak_name(fun) call; \
 }