Atmel CAVR-4 Manual De Usuario

CAVR-4

Descriptions of options

Reference Guide

--cross_call_passes

--cross_call_passes=N

Use this option to decrease the 

RSTACK

 usage by running the cross-call optimizer 

 

times, where 

 can be 1–5. The default is to run it until no more improvements can be 

made.

For additional information, see --no_cross_call, page 189.

Note: Use this option if you have a target processor with a hardware stack or a small 
internal return stack segment, 

RSTACK

.

This option is related to the Optimizations options in the C/C++ Compiler category in 
IAR Embedded Workbench.

-D

-Dsymbol[=value]

-D symbol[=value]

Use this option to define a preprocessor symbol with the name 

 and the value 

. If no value is specified, 

1

 is used. 

The option 

-D

 has the same effect as a 

#define

 statement at the top of the source file:

-Dsymbol

is equivalent to:

#define symbol 1

In order to get the equivalence of:

#define FOO

specify the 

=

 sign but nothing after, for example:

-DFOO=

This option can be used one or more times on the command line. 

You may want to arrange your source to produce either the test or production version of 
your program, depending on whether the symbol 

TESTVER

 was defined. To do this, you 

would use include sections such as:

#ifdef  TESTVER

...

 additional code lines for test version only

#endif

Then, you would select the version required on the command line as follows: