Atmel CAVR-4 Manual De Usuario

CAVR-4

Part 2. Compiler reference

--no_ubrof_messages

--no_ubrof_messages

Use this option to minimize the size of your application object file by excluding 
messages from the UBROF files. A file size decrease of up to 60% can be expected. Note 
that the XLINK diagnostic messages will, however, be less useful when you use this 
option.

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

--no_tbaa

--no_tbaa

Use 

--no_tbaa

 to disable type-based alias analysis. When this options is not used, the 

compiler is free to assume that objects are only accessed through the declared type or 
through 

unsigned

 

char

. See Type-based alias analysis, page 124 for more 

information.

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

--no_typedefs_in_diagnostics

--no_typedefs_in_diagnostics 

Normally, when a type is mentioned in a message from the compiler, most commonly 
in a diagnostic message of some kind, the typedef names that were used in the original 
declaration are used whenever they make the resulting text shorter. For example, 

typedef int (*MyPtr)(char const *);

MyPtr p = "foo";

will give an error message like the following:

Error[Pe144]: a value of type "char *" cannot be used to 

initialize an entity of type "MyPtr"

If the 

--no_typedefs_in_diagnostics

 option is specified, the error message will 

be like this:

Error[Pe144]: a value of type "char *" cannot be used to 

initialize an entity of type "int (*)(char const *)"

--no_warnings

--no_warnings 

By default, the compiler issues warning messages. Use this option to disable all warning 
messages.

 

To set the equivalent option in IAR Embedded Workbench, select 
Project>Options>C/C++ Compiler>Diagnostics.