I'm sorry for not attaching the maps. Attachment is made here. I also wanted to know why anonymous memory mapping is created when I don't do any dynamic memory allocation.
Following is my code. I ran it on BF609 processor. But the first mapping in the first picture below cat /proc/1891/maps indicate anonymous memory regions. Why is this created when I don't use mmap() or malloc() in my code. How to understand which anonymous region belongs to which library or the program. Is there any way to control(or eliminate) the size of anonymous memory region. Also can the stack region, data region, text region be located in any part of the memory(SDRAM) because this doesn't have MMU support. OTher processes shown in the picture are also from the same code except the size of variables a and b are changed. I haven't found the exact answers for these questions anywhere online. Kindly help me with this.
#include<stdio.h>
int a[4100000],b[4100000],d,e;
int main()
{
int i; a[0]=1; for(i=0;i<4100000;i++) { a[i+1]=a[i]+1; b[i]=a[i]; } d=b[4100000]; e=d; return 0;
}
