Arm VERSION 1.2 Manual de usuario descargar pdf (Pagina 340)

100

101

Directives Reference

7.7.7 EXPORT or GLOBAL

The

EXPORT

directive declares a symbol that can be used by the linker to resolve symbol

references in separate object and library files.

GLOBAL

is a synonym for

EXPORT

Syntax

EXPORT {symbol}{[WEAK]}

where:

symbol

is the symbol name to export. The symbol name is case-sensitive. If

symbol

is omitted, all symbols are exported.

[WEAK]

means that this instance of

symbol

should only be imported into other

sources if no other source exports an alternative instance. If

[WEAK]

is used

without

symbol

, all exported symbols are weak.

Usage

Use

EXPORT

to give code in other files access to symbols in the current file.

Use the

[WEAK]

attribute to inform the linker that a different instance of

symbol

takes

precedence over this one, if a different one is available from another source.

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Arm VERSION 1.2 Manual de usuario Pagina 340

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