backtrack        1486 tools/finsig_thumb2.c     int backtrack=3;
backtrack        1501 tools/finsig_thumb2.c         backtrack=2;
backtrack        1504 tools/finsig_thumb2.c     disasm_iter_init(fw,is,adr_hist_get(&is->ah,backtrack));
backtrack        1510 tools/finsig_thumb2.c     if(backtrack == 3) {