projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * linux/arch/arm/kernel/sys_arm.c | |
| 3 | * | |
| 4 | * Copyright (C) People who wrote linux/arch/i386/kernel/sys_i386.c | |
| 5 | * Copyright (C) 1995, 1996 Russell King. | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License version 2 as | |
| 9 | * published by the Free Software Foundation. | |
| 10 | * | |
| 11 | * This file contains various random system calls that | |
| 12 | * have a non-standard calling sequence on the Linux/arm | |
| 13 | * platform. | |
| 14 | */ | |
| ecea4ab6 | 15 | #include <linux/export.h> |
| 1da177e4 LT |
16 | #include <linux/errno.h> |
| 17 | #include <linux/sched.h> | |
| 1da177e4 LT |
18 | #include <linux/mm.h> |
| 19 | #include <linux/sem.h> | |
| 20 | #include <linux/msg.h> | |
| 21 | #include <linux/shm.h> | |
| 22 | #include <linux/stat.h> | |
| 23 | #include <linux/syscalls.h> | |
| 24 | #include <linux/mman.h> | |
| 25 | #include <linux/fs.h> | |
| 26 | #include <linux/file.h> | |
| cba4fbbf | 27 | #include <linux/ipc.h> |
| 33fa9b13 | 28 | #include <linux/uaccess.h> |
| 5a0e3ad6 | 29 | #include <linux/slab.h> |
| 1da177e4 | 30 | |
| 1da177e4 LT |
31 | /* Fork a new task - this creates a new program thread. |
| 32 | * This is called indirectly via a small wrapper | |
| 33 | */ | |
| 34 | asmlinkage int sys_fork(struct pt_regs *regs) | |
| 35 | { | |
| f24284ad | 36 | #ifdef CONFIG_MMU |
| 1da177e4 | 37 | return do_fork(SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL); |
| f24284ad HC |
38 | #else |
| 39 | /* can not support in nommu mode */ | |
| 40 | return(-EINVAL); | |
| 41 | #endif | |
| 1da177e4 LT |
42 | } |
| 43 | ||
| 44 | /* Clone a task - this clones the calling program thread. | |
| 45 | * This is called indirectly via a small wrapper | |
| 46 | */ | |
| 47 | asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp, | |
| 48 | int __user *parent_tidptr, int tls_val, | |
| 49 | int __user *child_tidptr, struct pt_regs *regs) | |
| 50 | { | |
| 51 | if (!newsp) | |
| 52 | newsp = regs->ARM_sp; | |
| 53 | ||
| 54 | return do_fork(clone_flags, newsp, regs, 0, parent_tidptr, child_tidptr); | |
| 55 | } | |
| 56 | ||
| 57 | asmlinkage int sys_vfork(struct pt_regs *regs) | |
| 58 | { | |
| 59 | return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->ARM_sp, regs, 0, NULL, NULL); | |
| 60 | } | |
| 61 | ||
| 68d9102f | 62 | /* |
| 6cbdc8c5 | 63 | * Since loff_t is a 64 bit type we avoid a lot of ABI hassle |
| 68d9102f NP |
64 | * with a different argument ordering. |
| 65 | */ | |
| 66 | asmlinkage long sys_arm_fadvise64_64(int fd, int advice, | |
| 67 | loff_t offset, loff_t len) | |
| 68 | { | |
| 69 | return sys_fadvise64_64(fd, offset, len, advice); | |
| 70 | } |