Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Push/Pop pragma magic to avoid gcc warning aber a less-than NULL comparision

This commit is contained in:
martin 2013-09-14 20:46:27 +00:00
parent 0f214788e7
commit fa588be65c
1 changed files with 13 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
sys/kern/kern_ras.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: kern_ras.c,v 1.35 2012/02/19 21:06:53 rmind Exp $ */
/* $NetBSD: kern_ras.c,v 1.36 2013/09/14 20:46:27 martin Exp $ */
/*-
* Copyright (c) 2002, 2006, 2007, 2008 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_ras.c,v 1.35 2012/02/19 21:06:53 rmind Exp $");
__KERNEL_RCSID(0, "$NetBSD: kern_ras.c,v 1.36 2013/09/14 20:46:27 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -176,6 +176,14 @@ ras_purgeall(void)
#if defined(__HAVE_RAS)
#if __GNUC_PREREQ__(4, 8)
#define __WARNING_PUSH_LESS_NULL_PTR _Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wextra\"")
#define __WARNING_POP_LESS_NULL_PTR _Pragma("GCC diagnostic pop")
#else
#define __WARNING_PUSH_LESS_NULL_PTR
#define __WARNING_POP_LESS_NULL_PTR
#endif
/*
* Install the new sequence. If it already exists, return
* an error.
@ -191,9 +199,12 @@ ras_install(void *addr, size_t len)
endaddr = (char *)addr + len;
/* do not warn about < NULL pointer comparision */
__WARNING_PUSH_LESS_NULL_PTR
if (addr < (void *)VM_MIN_ADDRESS ||
endaddr > (void *)VM_MAXUSER_ADDRESS)
return (EINVAL);
__WARNING_POP_LESS_NULL_PTR
if (len <= 0)
return (EINVAL);