[avr-gcc-list] AVR-Studio / Watch window and bit fields

[Erwan MARC]

Hello,

With AVR-Studio 4.1.16 and Gcc/Gdb, when using bit fields in a 
structure, the watch window doesn't display values correctly.

If you have structure
typedef struct {
   U8        ID:6;
   U8        Flag:1;
   U8        Length;
   U8        Data[8];
   U16    TimeStamp;
} tLINMessage;
it is packed on 12 bytes
when structure
typedef struct {
   U8        ID;
   U8        Flag:1;
   U8        Length;
   U8        Data[8];
   U16    TimeStamp;
} tLINMessage;
is 13 bytes long
This may save space in the small chip

BUT

in second configuration debugger will display the values as they are (2 
independant numbers) but in first one both elements of structure (ID and 
flag) have the same value...

Is it a global bug of gdb or something specific to avr-gcc settings or 
event avr-studio?

Regards

Erwan MARC