CCS/TMS320F28069M: how to change heap size?

Part Number: TMS320F28069M

Tool/software: Code Composer Studio

I am working on program to print hello world on console.

I AM GETTING WARNING AS-

Description Resource Path Location Type
#10210-D creating ".esysmem" section with default size of 0x400; use the -heap option to change the default size sequence C/C++ Problem

Description Resource Path Location Type
#10247-D creating output section ".cio" without a SECTIONS specification sequence C/C++ Problem

and it run and debug without any error but not able print hello world on console.

so how to solve this issue, please guide me about this.

code is give here:

#include <stdio.h>
int i=0;
int x;

int charge_start;
int charge_start_signal;
int main(void)
{
if(i==0)
{x++;}
else
{ x=0;
printf("HELLO \n");
fflush (stdout);
}
return 0;
}
int sequence(void)
{
if(charge_start==1)
{
printf("Charge Start Button is ON \n");
fflush (stdout);
printf("transmit the charge start signal to the vehicle \n");
fflush (stdout);

if (charge_start_signal==1)
{
printf("Start CAN communication \n");
fflush (stdout);

}
else
{
printf("wait for signal from charger \n");
fflush (stdout);

}
}
return 0;
}