RE: [avr-gcc-list] Problem with array on the stack

[Weddington, Eric]

And what version are we talking about here?
 

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> org] On Behalf Of Cory Cross
> Sent: Monday, September 06, 2010 4:47 PM
> To: address@hidden
> Subject: [avr-gcc-list] Problem with array on the stack
> 
> Hi all,
> 
> I had an array on the stack clobber a global array like so:
> 
> uint16_t clobberee[3] = {0xFFFF,0xFFFF,0xFFFF};
> 
> volatile uint8_t stuff[9][7];
> 
> void process(uint8_t num) {
>    uint8_t i,j;
>    for(i=0;i<num;++i){
>      uint8_t clobberer[7];
>      for(j=0;j<7;++j)
>         clobberer[j] = stuff[0][j];
>    }
> }
> 
> When I made "clobberer" a global, everything worked fine. But 
> with it on 
> the stack there, the assembly loaded "0x0100" as the base 
> address. When 
> made a global, it used the global address and everything worked fine.
> 
> I'm using the flags -mmcu=atmega168 -I. -gstabs   -Os -Wall 
> -Wstrict-prototypes -fpack-struct -fshort-enums -std=gnu99 
> -save-temps 
> -ffunction-sections -ffreestanding
> 
> If this is not my fault, I will try and come up with the simplist 
> program demonstrating the problem.
> 
> Thanks,
> Cory
> 
> _______________________________________________
> AVR-GCC-list mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
>