I have below warning when s/w is Build, when Generating HEX File.

ltc W159: LSL: section ".text.libc.reset" (function _START) was not selected because it already has
an absolute restriction

_START is defined as the start Address
run_addr = (RESET),
symbol = "_START"

and in cstart.c file, I have
/************************************************** *******************************
* reset vector
************************************************** *******************************/

#pragma section code libc.reset
#pragma optimize g
void _START( void )
#pragma optimize restore
#pragma section code restore

what is the reason for the warning. Thank you.