ARM Linking Directives

9/7/2007

The following ARM assembly directives link other files to the current assembly.

Directive	Syntax	Description
EXPORT	`EXPORT symbol{[FPREGARGS,DATA,LEAF]}`	Declares a symbol for use at link time by other, separate object files. FPPREGARGS defines a function that expects fp arguments passed in fp registers. DATA defines a code-segment datum rather than a function or procedure. LEAF causes asserts that call other functions. Identical to the `GLOBAL` directive.
GET	`GET filename`	Includes an additional file named filename within the current file assembly. The included file can in turn use `GET` directives to include more files. When assembly of the included file is complete, assembly continues at the line following the GET directive.
GLOBAL	`GLOBAL symbol{ [FPREGARGS,DATA,LEAF]}`	Declares a symbol for use at link time by other, separate object files. FPPREGARGS defines a function that expects fp arguments passed in fp registers. DATA defines a code-segment datum rather than a function or procedure. LEAF causes asserts that call other functions. Identical to the `EXPORT` directive.
IMPORT	`IMPORT symbol{ WEAK=weak-symbol, {type=n}}`	Provides the assembler with a name, symbol. The assembly does not contain a definition for symbol, but resolves it at link time to a symbol defined in a separate object file. The routine treats symbol as a program address.
INCLUDE	`INCLUDE filename`	Specifies a synonym for `GET`.

See Also