https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81273
--- Comment #3 from LdB <ldeboer at gateway dot net.au> ---
I am stunned you could not build the code the only requirement is you include
the stdint.h so the uint32_t types are defined. I will fix the typos are you
really saying you can't compile this?
#include <stdint.h>
struct __attribute__((__packed__)) TimerRegisters {
volatile uint32_t Load; //0x00
volatile uint32_t Value; //0x04
};
uint32_t base_addr = 0x3F000000;
#define TIMER ((struct TimerRegisters*)(base_addr + 0xB400))
void ShowBug (void){
TIMER->Load = 0x400; // -02 compile and look at code
}
void ShowFix1 (void){
*(volatile uint32_t*)TIMER->Load = 0x400;
}
void ShowFix2 (void){
volatile uint32_t temp = 0x400;
TIMER->Load = temp;
}
Alignment is not really a concern it's a hardware register to the CPU so it's a
given.
