Atmel CAVR-4 Manual De Usuario

CAVR-4

Part 2. Compiler reference

--only_stdout

--only_stdout 

Use this option to make the compiler use the standard output stream (

stdout

) also for 

messages that are normally directed to the error output stream (

stderr

).

 --preinclude

--preinclude includefile

Use this option to make the compiler include the specified include file before it starts to 
read the source file. This is useful if you want to change something in the source code 
for the entire application, for instance if you want to define a new symbol.

--preprocess

--preprocess[=[c][n][l]] {filename|directory}

Use this option to direct preprocessor output to a named file.

The following table shows the mapping of the available preprocessor modifiers:

 

 

If a 

 is specified, the compiler stores the output in that file. 

If a 

 is specified, the compiler stores the output in that directory, in a file with 

the extension 

i

. The filename will be the same as the name of the compiled source file, 

unless a different name has been specified with the option 

-o

, in which case that name 

will be used.

To specify the working directory, replace 

 with a period (

.

).

To store the compiler output with preserved comments to the file 

output.i

, use:

iccavr prog --preprocess=c output

If you compile the file 

mysource.c

 and want to store the compiler output with 

#line

 

directives to a file 

mysource.i

 in the working directory, you could use:

iccavr mysource --preprocess=l .

Note: Both 

\

 and 

/

 can be used as directory delimiters.

--preprocess=c

Preserve comments

--preprocess=n

Preprocess only

--preprocess=l

Generate #line directives