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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 & Co. KG
definition:
default:
attributes: null
body: |
(void) ( ${.:/params[0]/name} )
params: []
return: null
variants:
- definition:
attributes: null
body: |
${/compiler/if/asm:/name}( "" : "+r" ( ${.:/params[0]/name} ) )
params: []
return: null
enabled-by:
- defined(${/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: null
type: interface
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