#include <linux/elf.h>#include <linux/fs.h>#include <linux/mm.h> #include <asm/elf.h>  Elf_Half __weak elf_core_extra_phdrs(void){	return 0;} int __weak elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,				      unsigned long limit){	return 1;} int __weak elf_core_write_extra_data(struct file *file, size_t *size,				     unsigned long limit){	return 1;} size_t __weak elf_core_extra_data_size(void){	return 0;}