Re: [avr-gcc-list] AVR gcc port

[Theodore A. Roth]

On Sun, 18 Jan 2004, J.C. Wren wrote:

>     Assuming one has the structure below, how does one declare the text
> in the structure to be placed in .text instead of .data?  I've figured
> out how to obtain .text placement for strings passed in functions, but
> that (as expected, based on the macro definition) gives errors for text
> in structures.
>
>     --jc
>
> typedef struct commandList_s
> {
>    PGM_P command;
>    void (*handler) (void);
>    PGM_P help;
> }
> commandList_t;
>
> //
> //
> //
> PROGMEM commandList_t commandList  [] =
> {
>    { "?",               cmd_help,         "This help list" },
>    { "version",         cmd_version,      "Display version" },
>    { NULL,              NULL,             NULL }
> };

Here's a structure I use in one of my projects:

struct menuitem
{
    FP_MenuItemHandler handler; /**< Function called to handler selected
                                     item. */
    const char * PROGMEM desc;  /**< Text description of menu item. Must point
                                     to a string in program space. */
};

The struct lives in program space (.text) and when needed is copied to
sram.

Hope that helps.

Ted Roth