How to get a reliable Linux x86_64 bit memory card

I have a very simple program for adding two variables, written in c. I am running it on a Linux machine. I want to see all memory references / virtual addresses that are referenced during program execution. From the program I am getting the virtual address (somehow), but I don’t know which address belongs to user space and which one belongs to kernel space.

I've used some helpers (none served the purpose):

• Getting a memory card for each device in Linux: sudo cat /proc/iomem
  
  
• for more: sudo cat /proc/vmallocinfo
  
  
• Process memory card: pmap -x pids
  
  
• The memory area of the process: cat /proc/pid/maps
  
  .

For 32 bits, I know Linux only uses 4 segments:

• 2 segments (code and data / stack) for KERNEL SPACE from [0xC000 0000]
  
  (3 GB) to [0xFFFF FFFF]
  
  (4 GB)
• 2 segments (code and data / stack) for USER SPACE from [0x0000 0000]
  
  (0 GB) to [0xBFFF FFFF]
  
  (3 GB)

But I want to know the similar range for 64 bits.

MY code

#include <stdio.h>
#include <stdlib.h>
int main(){
int a = 1, b = 2, c; 
 void *ptr;
 c = a + b;
 ptr = malloc(8);
printf("Result %d %p \n", c, ptr);
return 0;
}

      

        
        
        
      

    

Bonus: if possible, find out the virtual address for user code, library space and system / kernel space as well.