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> | |
1da177e4 LT |
47 | #include <asm/uaccess.h> |
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 | |
1da177e4 | 55 | |
1da177e4 LT |
56 | asmlinkage long ppc32_select(u32 n, compat_ulong_t __user *inp, |
57 | compat_ulong_t __user *outp, compat_ulong_t __user *exp, | |
58 | compat_uptr_t tvp_x) | |
59 | { | |
60 | /* sign extend n */ | |
61 | return compat_sys_select((int)n, inp, outp, exp, compat_ptr(tvp_x)); | |
62 | } | |
63 | ||
b09a4913 | 64 | unsigned long compat_sys_mmap2(unsigned long addr, size_t len, |
1da177e4 LT |
65 | unsigned long prot, unsigned long flags, |
66 | unsigned long fd, unsigned long pgoff) | |
67 | { | |
68 | /* This should remain 12 even if PAGE_SIZE changes */ | |
69 | return sys_mmap(addr, len, prot, flags, fd, pgoff << 12); | |
70 | } | |
71 | ||
1da177e4 LT |
72 | /* |
73 | * long long munging: | |
74 | * The 32 bit ABI passes long longs in an odd even register pair. | |
75 | */ | |
76 | ||
b09a4913 | 77 | compat_ssize_t compat_sys_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, |
1da177e4 LT |
78 | u32 reg6, u32 poshi, u32 poslo) |
79 | { | |
80 | return sys_pread64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); | |
81 | } | |
82 | ||
c7887325 | 83 | compat_ssize_t compat_sys_pwrite64(unsigned int fd, const char __user *ubuf, compat_size_t count, |
1da177e4 LT |
84 | u32 reg6, u32 poshi, u32 poslo) |
85 | { | |
86 | return sys_pwrite64(fd, ubuf, count, ((loff_t)poshi << 32) | poslo); | |
87 | } | |
88 | ||
b09a4913 | 89 | compat_ssize_t compat_sys_readahead(int fd, u32 r4, u32 offhi, u32 offlo, u32 count) |
1da177e4 LT |
90 | { |
91 | return sys_readahead(fd, ((loff_t)offhi << 32) | offlo, count); | |
92 | } | |
93 | ||
b09a4913 | 94 | asmlinkage int compat_sys_truncate64(const char __user * path, u32 reg4, |
1da177e4 LT |
95 | unsigned long high, unsigned long low) |
96 | { | |
97 | return sys_truncate(path, (high << 32) | low); | |
98 | } | |
99 | ||
97ac7350 AA |
100 | asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo, |
101 | u32 lenhi, u32 lenlo) | |
102 | { | |
103 | return sys_fallocate(fd, mode, ((loff_t)offhi << 32) | offlo, | |
104 | ((loff_t)lenhi << 32) | lenlo); | |
105 | } | |
106 | ||
b09a4913 | 107 | asmlinkage int compat_sys_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, |
1da177e4 LT |
108 | unsigned long low) |
109 | { | |
110 | return sys_ftruncate(fd, (high << 32) | low); | |
111 | } | |
112 | ||
1da177e4 LT |
113 | long ppc32_fadvise64(int fd, u32 unused, u32 offset_high, u32 offset_low, |
114 | size_t len, int advice) | |
115 | { | |
116 | return sys_fadvise64(fd, (u64)offset_high << 32 | offset_low, len, | |
117 | advice); | |
118 | } | |
119 | ||
edd5cd4a DW |
120 | asmlinkage long compat_sys_sync_file_range2(int fd, unsigned int flags, |
121 | unsigned offset_hi, unsigned offset_lo, | |
122 | unsigned nbytes_hi, unsigned nbytes_lo) | |
123 | { | |
124 | loff_t offset = ((loff_t)offset_hi << 32) | offset_lo; | |
125 | loff_t nbytes = ((loff_t)nbytes_hi << 32) | nbytes_lo; | |
126 | ||
127 | return sys_sync_file_range(fd, offset, nbytes, flags); | |
128 | } |