From: Ulrich Drepper <drepper@redhat.com>
Date: Thu, 10 May 2007 20:15:11 +0000 (+0000)
Subject: Redefine __nonnull so that test for incorrect parameters in the libc code itself... 
X-Git-Tag: cvs/fedora-glibc-20070510T2304~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=00afb11fc0a9282d7e2cbc51cd1c65bf1b79a5ae;p=thirdparty%2Fglibc.git

Redefine __nonnull so that test for incorrect parameters in the libc code itself are not omitted.
---

diff --git a/include/sys/cdefs.h b/include/sys/cdefs.h
index 8ba980477d3..cd0750b4524 100644
--- a/include/sys/cdefs.h
+++ b/include/sys/cdefs.h
@@ -2,6 +2,12 @@
 
 #include <misc/sys/cdefs.h>
 
+/* The compiler will optimize based on the knowledge the parameter is
+   not NULL.  This will omit tests.  A robust implementation cannot allow
+   this so when compiling glibc itself we ignore this attribute.  */
+#undef __nonnull
+#define __nonnull(params)
+
 extern void __chk_fail (void) __attribute__ ((__noreturn__));
 libc_hidden_proto (__chk_fail)
 rtld_hidden_proto (__chk_fail)