And you may want to cast the pointers returned b __sfb and __sfe to
pointers before assigning them to their appropriate locals.

On Jan 3, 3:40 pm, "David  Ziman" <nin...@gmail.com> wrote:
> Hello,
>
> Enable language extensions and try the following:
>
> #pragma segment=3D"HEAP"
>
> int main ( void )
> {
>
> unsigned int startOfHeap =3D __sfb("HEAP");
> unsigned int endOfHeap =3D __sfe("HEAP");
> unsigned int heapSegSize =3D __sfsize("HEAP");
>
> printf("Start of heap: %x\n", startOfHeap);
> printf("End of heap: %x\n", endOfHeap);
> printf("Heap size: %x\n", heapSegSize);
>
> return 0;
>
> }This assumes you defined HEAP as a segment in the linker command file
> or using the "@" symbol.
>
> ninjew
>
> On Jan 3, 3:26 am, Pawel.Rozan...@gmail.com wrote:
>
> > Hi,
>
> > I have solid background on GNU tools -but IAR... anyway
>
> > How to extract a HEAP pointer in IAR C/C++? I have my own malloc
> > routines (i don't use stdlib), so I need that value from xlink.
>
> > Trick like
> > -D_hea=3DHEAP
>
> > and in C
> > extern _hea;
> > ..
> > ..
> > printf("%x",&_hea);
>
> > doesn't work :) (but it works for -D_hea=3D123)
>
> > Maybe someone with bigger IAR background could help. Thanks for any
> > hint. Arch is AT91sam7 but I think this is irrevelant.
>=20
> > Pawe=B3

Sorry, one correction, change __sfsize to __sfs

On Jan 3, 3:40 pm, "David  Ziman" <nin...@gmail.com> wrote:
> Hello,
>
> Enable language extensions and try the following:
>
> #pragma segment=3D"HEAP"
>
> int main ( void )
> {
>
> unsigned int startOfHeap =3D __sfb("HEAP");
> unsigned int endOfHeap =3D __sfe("HEAP");
> unsigned int heapSegSize =3D __sfsize("HEAP");
>
> printf("Start of heap: %x\n", startOfHeap);
> printf("End of heap: %x\n", endOfHeap);
> printf("Heap size: %x\n", heapSegSize);
>
> return 0;
>
> }This assumes you defined HEAP as a segment in the linker command file
> or using the "@" symbol.
>
> ninjew
>
> On Jan 3, 3:26 am, Pawel.Rozan...@gmail.com wrote:
>
> > Hi,
>
> > I have solid background on GNU tools -but IAR... anyway
>
> > How to extract a HEAP pointer in IAR C/C++? I have my own malloc
> > routines (i don't use stdlib), so I need that value from xlink.
>
> > Trick like
> > -D_hea=3DHEAP
>
> > and in C
> > extern _hea;
> > ..
> > ..
> > printf("%x",&_hea);
>
> > doesn't work :) (but it works for -D_hea=3D123)
>
> > Maybe someone with bigger IAR background could help. Thanks for any
> > hint. Arch is AT91sam7 but I think this is irrevelant.
>=20
> > Pawe=B3

Hello,

Enable language extensions and try the following:

#pragma segment=3D"HEAP"

int main ( void )
{

unsigned int startOfHeap =3D __sfb("HEAP");
unsigned int endOfHeap =3D __sfe("HEAP");
unsigned int heapSegSize =3D __sfsize("HEAP");

printf("Start of heap: %x\n", startOfHeap);
printf("End of heap: %x\n", endOfHeap);
printf("Heap size: %x\n", heapSegSize);

return 0;

}



This assumes you defined HEAP as a segment in the linker command file
or using the "@" symbol.

ninjew

On Jan 3, 3:26 am, Pawel.Rozan...@gmail.com wrote:
> Hi,
>
> I have solid background on GNU tools -but IAR... anyway
>
> How to extract a HEAP pointer in IAR C/C++? I have my own malloc
> routines (i don't use stdlib), so I need that value from xlink.
>
> Trick like
> -D_hea=3DHEAP
>
> and in C
> extern _hea;
> ..
> ..
> printf("%x",&_hea);
>
> doesn't work :) (but it works for -D_hea=3D123)
>
> Maybe someone with bigger IAR background could help. Thanks for any
> hint. Arch is AT91sam7 but I think this is irrevelant.
>=20
> Pawe=B3

Hi,

I have solid background on GNU tools -but IAR... anyway

How to extract a HEAP pointer in IAR C/C++? I have my own malloc
routines (i don't use stdlib), so I need that value from xlink.

Trick like
-D_hea=3DHEAP

and in C
extern _hea;
.=2E
.=2E
printf("%x",&_hea);

doesn't work :) (but it works for -D_hea=3D123)

Maybe someone with bigger IAR background could help. Thanks for any
hint. Arch is AT91sam7 but I think this is irrevelant.

Pawe=B3