-qsmallstack

Pragma equivalent

None.

Purpose

Minimizes stack usage where possible. Disables optimizations that increase the size of the stack frame.

Syntax


        .-nosmallstack-.   
>>- -q--+-smallstack---+---------------------------------------><

Defaults

-qnosmallstack

Usage

Programs that allocate large amounts of data to the stack, such as threaded programs, may result in stack overflows. The -qsmallstack option helps avoid overflows by disabling optimizations that increase the size of the stack frame.

This option is only valid when used together with IPA (the -qipa, -O4, or -O5 compiler options).

Specifying this option may adversely affect program performance.

Predefined macros