On Thu, 15 Apr 1999, Aaron Ardiri wrote:
> > 1. You ARE doing a libc call, because you are linking to libc, and you
> > don't have LibC.prc installed. This is the only way you can get that
> > particular error.
>
> actually.. i was not doing anything like that.
>
> no strings, no library routines.. all i was doing was basic
> passing of 'struct' objects.
>
> i had the following prototype:
>
> ---
> typdef struct
> {
> Byte x;
> Byte y;
> } MyObject, *MyObjectPtr;
>
> void draw(MyObject o) {
> // use 'o'
> }
> ---
>
> and i replaced it with:
>
> ---
> void draw(MyObjectPtr o) {
> // use "*o"
> }
> ---
>
> and it got rid of the message. my 'C' understanding tells
> me that this should be allowed - and it should not crash.
> but maybe when i write my program in the normal 'gcc' -
> verses the 'palmos-gcc' something changes?
>
> interesting? i gave up caring.. now i just pass pointers,
> it is more efficient anyhow - especially on the stack.
Well, if you have a static (global) string, and are passing it by value on
the stack the gcc compiler does a strcpy or memcpy!
In effect (and the .s file should show something like this):
{
MyObject dummytemp;
memcpy( dummytemp, o, sizeof(MyObject) );
draw( dummytemp );
}
This would have shown up in the m68k-..-nm from Main.o.
