linux-imx

/*

 *  linux/fs/binfmt_aout.c

 *

 *  Copyright (C) 1991, 1992, 1996  Linus Torvalds

 */

​

#include <linux/module.h>

​

#include <linux/time.h>

#include <linux/kernel.h>

#include <linux/mm.h>

#include <linux/mman.h>

#include <linux/a.out.h>

#include <linux/errno.h>

#include <linux/signal.h>

#include <linux/string.h>

#include <linux/fs.h>

#include <linux/file.h>

#include <linux/stat.h>

#include <linux/fcntl.h>

#include <linux/ptrace.h>

#include <linux/user.h>

#include <linux/binfmts.h>

#include <linux/personality.h>

#include <linux/init.h>

#include <linux/coredump.h>

#include <linux/slab.h>

#include <linux/sched/task_stack.h>

​

#include <linux/uaccess.h>

#include <asm/cacheflush.h>

​

static int load_aout_binary(struct linux_binprm *);

static int load_aout_library(struct file*);

​

static struct linux_binfmt aout_format = {

    .module     = THIS_MODULE,

    .load_binary    = load_aout_binary,

    .load_shlib = load_aout_library,

};

​

#define BAD_ADDR(x) ((unsigned long)(x) >= TASK_SIZE)

​

static int set_brk(unsigned long start, unsigned long end)

{

    start = PAGE_ALIGN(start);

    end = PAGE_ALIGN(end);

    if (end > start)

        return vm_brk(start, end - start);

    return 0;

}

​

/*

 * create_aout_tables() parses the env- and arg-strings in new user

 * memory and creates the pointer tables from them, and puts their

 * addresses on the "stack", returning the new stack pointer value.

 */

static unsigned long __user *create_aout_tables(char __user *p, struct linux_binprm * bprm)

{

    char __user * __user *argv;

    char __user * __user *envp;

    unsigned long __user *sp;

    int argc = bprm->argc;