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authorPaul Mackerras <paulus@samba.org>2005-10-17 06:10:13 -0400
committerPaul Mackerras <paulus@samba.org>2005-10-17 06:10:13 -0400
commit30286ef6e044bc3d9019c3d8b900572e3fa05e65 (patch)
tree4d73bf0eb0da75d3c52613325d4085f139efdd39 /arch/ppc64/kernel/syscalls.c
parent30cd4a4e9c25e154ba087848a839bd0c6d024092 (diff)
powerpc: Merge syscalls.c and sys_ppc32.c.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc64/kernel/syscalls.c')
-rw-r--r--arch/ppc64/kernel/syscalls.c263
1 files changed, 0 insertions, 263 deletions
diff --git a/arch/ppc64/kernel/syscalls.c b/arch/ppc64/kernel/syscalls.c
deleted file mode 100644
index 05f16633bd2c..000000000000
--- a/arch/ppc64/kernel/syscalls.c
+++ /dev/null
@@ -1,263 +0,0 @@
1/*
2 * linux/arch/ppc64/kernel/sys_ppc.c
3 *
4 * PowerPC version
5 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
6 *
7 * Derived from "arch/i386/kernel/sys_i386.c"
8 * Adapted from the i386 version by Gary Thomas
9 * Modified by Cort Dougan (cort@cs.nmt.edu)
10 * and Paul Mackerras (paulus@cs.anu.edu.au).
11 *
12 * This file contains various random system calls that
13 * have a non-standard calling sequence on the Linux/PPC
14 * platform.
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License
18 * as published by the Free Software Foundation; either version
19 * 2 of the License, or (at your option) any later version.
20 *
21 */
22
23#include <linux/errno.h>
24#include <linux/sched.h>
25#include <linux/syscalls.h>
26#include <linux/mm.h>
27#include <linux/smp.h>
28#include <linux/smp_lock.h>
29#include <linux/sem.h>
30#include <linux/msg.h>
31#include <linux/shm.h>
32#include <linux/stat.h>
33#include <linux/mman.h>
34#include <linux/sys.h>
35#include <linux/ipc.h>
36#include <linux/utsname.h>
37#include <linux/file.h>
38#include <linux/init.h>
39#include <linux/personality.h>
40
41#include <asm/uaccess.h>
42#include <asm/ipc.h>
43#include <asm/semaphore.h>
44#include <asm/time.h>
45#include <asm/unistd.h>
46
47extern unsigned long wall_jiffies;
48
49
50/*
51 * sys_ipc() is the de-multiplexer for the SysV IPC calls..
52 *
53 * This is really horribly ugly.
54 */
55asmlinkage int
56sys_ipc (uint call, int first, unsigned long second, long third,
57 void __user *ptr, long fifth)
58{
59 int version, ret;
60
61 version = call >> 16; /* hack for backward compatibility */
62 call &= 0xffff;
63
64 ret = -ENOSYS;
65 switch (call) {
66 case SEMOP:
67 ret = sys_semtimedop(first, (struct sembuf __user *)ptr,
68 (unsigned)second, NULL);
69 break;
70 case SEMTIMEDOP:
71 ret = sys_semtimedop(first, (struct sembuf __user *)ptr,
72 (unsigned)second,
73 (const struct timespec __user *) fifth);
74 break;
75 case SEMGET:
76 ret = sys_semget (first, (int)second, third);
77 break;
78 case SEMCTL: {
79 union semun fourth;
80
81 ret = -EINVAL;
82 if (!ptr)
83 break;
84 if ((ret = get_user(fourth.__pad, (void __user * __user *)ptr)))
85 break;
86 ret = sys_semctl(first, (int)second, third, fourth);
87 break;
88 }
89 case MSGSND:
90 ret = sys_msgsnd(first, (struct msgbuf __user *)ptr,
91 (size_t)second, third);
92 break;
93 case MSGRCV:
94 switch (version) {
95 case 0: {
96 struct ipc_kludge tmp;
97
98 ret = -EINVAL;
99 if (!ptr)
100 break;
101 if ((ret = copy_from_user(&tmp,
102 (struct ipc_kludge __user *) ptr,
103 sizeof (tmp)) ? -EFAULT : 0))
104 break;
105 ret = sys_msgrcv(first, tmp.msgp, (size_t) second,
106 tmp.msgtyp, third);
107 break;
108 }
109 default:
110 ret = sys_msgrcv (first, (struct msgbuf __user *) ptr,
111 (size_t)second, fifth, third);
112 break;
113 }
114 break;
115 case MSGGET:
116 ret = sys_msgget ((key_t)first, (int)second);
117 break;
118 case MSGCTL:
119 ret = sys_msgctl(first, (int)second,
120 (struct msqid_ds __user *)ptr);
121 break;
122 case SHMAT:
123 switch (version) {
124 default: {
125 ulong raddr;
126 ret = do_shmat(first, (char __user *) ptr,
127 (int)second, &raddr);
128 if (ret)
129 break;
130 ret = put_user (raddr, (ulong __user *) third);
131 break;
132 }
133 case 1: /* iBCS2 emulator entry point */
134 ret = -EINVAL;
135 if (!segment_eq(get_fs(), get_ds()))
136 break;
137 ret = do_shmat(first, (char __user *)ptr,
138 (int)second, (ulong *)third);
139 break;
140 }
141 break;
142 case SHMDT:
143 ret = sys_shmdt ((char __user *)ptr);
144 break;
145 case SHMGET:
146 ret = sys_shmget (first, (size_t)second, third);
147 break;
148 case SHMCTL:
149 ret = sys_shmctl(first, (int)second,
150 (struct shmid_ds __user *)ptr);
151 break;
152 }
153
154 return ret;
155}
156
157/*
158 * sys_pipe() is the normal C calling standard for creating
159 * a pipe. It's not the way unix traditionally does this, though.
160 */
161asmlinkage int sys_pipe(int __user *fildes)
162{
163 int fd[2];
164 int error;
165
166 error = do_pipe(fd);
167 if (!error) {
168 if (copy_to_user(fildes, fd, 2*sizeof(int)))
169 error = -EFAULT;
170 }
171
172 return error;
173}
174
175unsigned long sys_mmap(unsigned long addr, size_t len,
176 unsigned long prot, unsigned long flags,
177 unsigned long fd, off_t offset)
178{
179 struct file * file = NULL;
180 unsigned long ret = -EBADF;
181
182 if (!(flags & MAP_ANONYMOUS)) {
183 if (!(file = fget(fd)))
184 goto out;
185 }
186
187 flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
188 down_write(&current->mm->mmap_sem);
189 ret = do_mmap(file, addr, len, prot, flags, offset);
190 up_write(&current->mm->mmap_sem);
191 if (file)
192 fput(file);
193
194out:
195 return ret;
196}
197
198long ppc64_personality(unsigned long personality)
199{
200 long ret;
201
202 if (personality(current->personality) == PER_LINUX32
203 && personality == PER_LINUX)
204 personality = PER_LINUX32;
205 ret = sys_personality(personality);
206 if (ret == PER_LINUX32)
207 ret = PER_LINUX;
208 return ret;
209}
210
211long ppc64_newuname(struct new_utsname __user * name)
212{
213 int err = 0;
214
215 down_read(&uts_sem);
216 if (copy_to_user(name, &system_utsname, sizeof(*name)))
217 err = -EFAULT;
218 up_read(&uts_sem);
219 if (!err && personality(current->personality) == PER_LINUX32) {
220 /* change ppc64 to ppc */
221 if (__put_user(0, name->machine + 3)
222 || __put_user(0, name->machine + 4))
223 err = -EFAULT;
224 }
225 return err;
226}
227
228asmlinkage time_t sys64_time(time_t __user * tloc)
229{
230 time_t secs;
231 time_t usecs;
232
233 long tb_delta = tb_ticks_since(tb_last_stamp);
234 tb_delta += (jiffies - wall_jiffies) * tb_ticks_per_jiffy;
235
236 secs = xtime.tv_sec;
237 usecs = (xtime.tv_nsec/1000) + tb_delta / tb_ticks_per_usec;
238 while (usecs >= USEC_PER_SEC) {
239 ++secs;
240 usecs -= USEC_PER_SEC;
241 }
242
243 if (tloc) {
244 if (put_user(secs,tloc))
245 secs = -EFAULT;
246 }
247
248 return secs;
249}
250
251void do_show_syscall(unsigned long r3, unsigned long r4, unsigned long r5,
252 unsigned long r6, unsigned long r7, unsigned long r8,
253 struct pt_regs *regs)
254{
255 printk("syscall %ld(%lx, %lx, %lx, %lx, %lx, %lx) regs=%p current=%p"
256 " cpu=%d\n", regs->gpr[0], r3, r4, r5, r6, r7, r8, regs,
257 current, smp_processor_id());
258}
259
260void do_show_syscall_exit(unsigned long r3)
261{
262 printk(" -> %lx, current=%p cpu=%d\n", r3, current, smp_processor_id());
263}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-17 03:03:55 -0500