fstack-security-check, GS

Causes the compiler to detect some buffer overruns.

IDE Equivalent

Windows: C/C++ > Code Generation > Buffer Security Check

Linux: None

Mac OS: None

Architectures

IA-32, Intel® EM64T

Syntax

Linux and Mac OS:	-fstack-security-check
	-fno-stack-security-check
Windows:	/GS
	/GS-

Arguments

None

Default

/GS-	The compiler does not detect buffer overruns.
-fno-stack-security-check	The compiler does not detect buffer overruns.

Description

This option causes the compiler to generate code that detects some buffer overruns that overwrite the return address; this is a common technique for exploiting code that does not enforce buffer size restrictions. To use this option, you must also link with the Microsoft* 7.0 run-time support libraries.

Alternate Options

None