tag	line	file	source code
start_brk	461	fs/binfmt_coff.c	current->start_brk   =
start_brk	516	fs/binfmt_elf.c	current->start_brk = current->brk = elf_brk;
start_brk	792	fs/exec.c	current->start_brk = current->brk = current->end_data;
start_brk	186	include/linux/sched.h	unsigned long start_code,end_code,end_data,start_brk,brk,start_stack,start_mmap;