Arm Compiler armclang Reference Guide : 3.34 __attribute_

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Arm^® Compiler armclang Reference Guide

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Home > Compiler-specific Function, Variable, and Type Attributes > __attribute__((used)) variable attribute

3.34 attribute((used)) variable attribute

This variable attribute informs the compiler that a static variable is to be retained in the object file, even if it is unreferenced.

Data marked with __attribute__((used)) is tagged in the object file to avoid removal by linker unused section removal.

Note:

Static functions can also be marked as used, by using __attribute__((used)).

Example

static int lose_this = 1;
static int keep_this __attribute__((used)) = 2;     // retained in object file
static int keep_this_too __attribute__((used)) = 3; // retained in object file

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Home > Compiler-specific Function, Variable, and Type Attributes > __attribute__((used)) variable attribute

3.34 __attribute__((used)) variable attribute

Note:

Example

3.34 attribute((used)) variable attribute