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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls. | |
3 | * | |
4 | * Copyright (C) 2001 IBM | |
5 | * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | |
6 | * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) | |
7 | * | |
8 | * These routines maintain argument size conversion between 32bit and 64bit | |
9 | * environment. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License | |
13 | * as published by the Free Software Foundation; either version | |
14 | * 2 of the License, or (at your option) any later version. | |
15 | */ | |
16 | ||
1da177e4 LT |
17 | #include <linux/kernel.h> |
18 | #include <linux/sched.h> | |
19 | #include <linux/fs.h> | |
20 | #include <linux/mm.h> | |
21 | #include <linux/file.h> | |
22 | #include <linux/signal.h> | |
23 | #include <linux/resource.h> | |
24 | #include <linux/times.h> | |
1da177e4 | 25 | #include <linux/smp.h> |
1da177e4 LT |
26 | #include <linux/sem.h> |
27 | #include <linux/msg.h> | |
28 | #include <linux/shm.h> | |
1da177e4 LT |
29 | #include <linux/poll.h> |
30 | #include <linux/personality.h> | |
31 | #include <linux/stat.h> | |
1da177e4 | 32 | #include <linux/mman.h> |
1da177e4 | 33 | #include <linux/in.h> |
1da177e4 LT |
34 | #include <linux/syscalls.h> |
35 | #include <linux/unistd.h> | |
36 | #include <linux/sysctl.h> | |
37 | #include <linux/binfmts.h> | |
1da177e4 LT |
38 | #include <linux/security.h> |
39 | #include <linux/compat.h> | |
40 | #include <linux/ptrace.h> | |
1da177e4 | 41 | #include <linux/elf.h> |
cba4fbbf | 42 | #include <linux/ipc.h> |
5a0e3ad6 | 43 | #include <linux/slab.h> |
1da177e4 | 44 | |
1da177e4 LT |
45 | #include <asm/ptrace.h> |
46 | #include <asm/types.h> | |
7c0f6ba6 | 47 | #include <linux/uaccess.h> |
1da177e4 | 48 | #include <asm/unistd.h> |
1da177e4 LT |
49 | #include <asm/time.h> |
50 | #include <asm/mmu_context.h> | |
d387899f | 51 | #include <asm/ppc-pci.h> |
369cf4b9 | 52 | #include <asm/syscalls.h> |
ae3a197e | 53 | #include <asm/switch_to.h> |
1da177e4 | 54 | |
b09a4913 | 55 | unsigned long compat_sys_mmap2(unsigned long addr, size_t len, |
1da177e4 LT |
56 | unsigned long prot, unsigned long flags, |
57 | unsigned long fd, unsigned long pgoff) | |
58 | { | |
59 | /* This should remain 12 even if PAGE_SIZE changes */ | |
60 | return sys_mmap(addr, len, prot, flags, fd, pgoff << 12); | |
61 | } | |
62 | ||
1da177e4 LT |
63 | /* |
64 | * long long munging: | |
65 | * The 32 bit ABI passes long longs in an odd even register pair. | |
66 | */ | |
67 | ||
b09a4913 | 68 | compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, |
1da177e4 LT |
69 | u32 reg6, u32 poshi, u32 poslo) |
70 | { | |
36028d5d | 71 | return ksys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); |
1da177e4 LT |
72 | } |
73 | ||
c7887325 | 74 | compat_ssize_t compat_sys_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count, |
1da177e4 LT |
75 | u32 reg6, u32 poshi, u32 poslo) |
76 | { | |
36028d5d | 77 | return ksys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); |
1da177e4 LT |
78 | } |
79 | ||
b09a4913 | 80 | compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count) |
1da177e4 | 81 | { |
c7b95d51 | 82 | return ksys_readahead(fd, ((loff_t)offhi << 32) | offlo, count); |
1da177e4 LT |
83 | } |
84 | ||
b09a4913 | 85 | asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4, |
1da177e4 LT |
86 | unsigned long high, unsigned long low) |
87 | { | |
df260e21 | 88 | return ksys_truncate(path, (high << 32) | low); |
1da177e4 LT |
89 | } |
90 | ||
97ac7350 AA |
91 | asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo, |
92 | u32 lenhi, u32 lenlo) | |
93 | { | |
edf292c7 | 94 | return ksys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo, |
97ac7350 AA |
95 | ((loff_t)lenhi << 32) | lenlo); |
96 | } | |
97 | ||
b09a4913 | 98 | asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, |
1da177e4 LT |
99 | unsigned long low) |
100 | { | |
411d9475 | 101 | return ksys_ftruncate(fd, (high << 32) | low); |
1da177e4 LT |
102 | } |
103 | ||
1da177e4 LT |
104 | long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, |
105 | size_t len, int advice) | |
106 | { | |
9d5b7c95 DB |
107 | return ksys_fadvise64_64(fd, (u64)offset_high << 32 | offset_low, len, |
108 | advice); | |
1da177e4 LT |
109 | } |
110 | ||
edd5cd4a DW |
111 | asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags, |
112 | unsigned offset_hi, unsigned offset_lo, | |
113 | unsigned nbytes_hi, unsigned nbytes_lo) | |
114 | { | |
115 | loff_t offset = ((loff_t)offset_hi << 32) | offset_lo; | |
116 | loff_t nbytes = ((loff_t)nbytes_hi << 32) | nbytes_lo; | |
117 | ||
806cbae1 | 118 | return ksys_sync_file_range(fd, offset, nbytes, flags); |
edd5cd4a | 119 | } |