path: root/spec/rtems/basedefs/if/obfuscate-variable.yml

SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
brief: |
  Obfuscates the variable so that the compiler cannot perform optimizations
  based on the variable value.
copyrights:
- Copyright (C) 2016, 2018 embedded brains GmbH (http://www.embedded-brains.de)
definition:
  default: |
    (void) (_var)
  variants:
  - definition: |
      ${/compiler/if/asm:/name}( "" : "+r" ( _var ) )
    enabled-by:
    - defined(${/compiler/if/gnuc:/name})
description: |
  The variable must be simple enough to fit into a register.
enabled-by: true
index-entries: []
interface-type: macro
links:
- role: interface-placement
  uid: header
- role: interface-ingroup
  uid: group
name: RTEMS_OBFUSCATE_VARIABLE
notes: null
params:
- description: |
    is the variable to obfuscate.
  dir: null
  name: _var
return:
  return: null
  return-values: []
type: interface