error: using (__attribute(__at()))

I'm using the uvision and I want to define a variable at a specific address. I figured out that it should work like int main(void) { int var __attribute__((__at(0x40001000))) = 20; } but...
error: using (__attribute(__at()))

I'm using the uvision and I want to define a variable at a specific address. I figured out that it should work like int main(void) { int var __attribute__((__at(0x40001000))) = 20; } but...
__at keyword does not work

Compiler complains when using that attribute as in example : const char MyText[] __at (0x1F00) = "TEXT AT ADDRESS 0x1F00"; Any idea ?
__at keyword does not work

Compiler complains when using that attribute as in example : const char MyText[] __at (0x1F00) = "TEXT AT ADDRESS 0x1F00"; Any idea ?
Absolute Variable Location: compilation error using __at

Hi, I'm trying to use "__at" to locate a variable to a specific address: void delay (void) { unsigned long cont __at 0x4000000; for (cont = 0; cont < 10000;cont++); } But the compiler...