From 97eaefd49377a8c5407df3de88c1a6f35e093559 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Wed, 12 Oct 2016 10:44:51 +0200 Subject: score: Add RTEMS_OBFUSCATE_POINTER() Update #2790. --- cpukit/score/include/rtems/score/basedefs.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/cpukit/score/include/rtems/score/basedefs.h b/cpukit/score/include/rtems/score/basedefs.h index c378635bef..ea4d8314ce 100644 --- a/cpukit/score/include/rtems/score/basedefs.h +++ b/cpukit/score/include/rtems/score/basedefs.h @@ -10,7 +10,7 @@ * COPYRIGHT (c) 1989-2007. * On-Line Applications Research Corporation (OAR). * - * Copyright (c) 2010-2015 embedded brains GmbH. + * Copyright (c) 2010, 2016 embedded brains GmbH. * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at @@ -221,6 +221,16 @@ #define RTEMS_PRINTFLIKE( _format_pos, _ap_pos ) #endif +/** + * @brief Obfuscates the pointer so that the compiler cannot perform + * optimizations based on the pointer value. + */ +#if defined(__GNUC__) + #define RTEMS_OBFUSCATE_POINTER( _ptr ) __asm__("" : "+r" (_ptr)) +#else + #define RTEMS_OBFUSCATE_POINTER( _ptr ) (void) (_ptr) +#endif + #if __cplusplus >= 201103L #define RTEMS_STATIC_ASSERT(cond, msg) \ static_assert(cond, # msg) -- cgit v1.2.3