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17#include <linux/errno.h>
18#include <linux/sched.h>
19#include <linux/syscalls.h>
20#include <linux/mm.h>
21#include <linux/fs.h>
22#include <linux/smp.h>
23#include <linux/sem.h>
24#include <linux/msg.h>
25#include <linux/shm.h>
26#include <linux/stat.h>
27#include <linux/mman.h>
28#include <linux/sys.h>
29#include <linux/ipc.h>
30#include <linux/utsname.h>
31#include <linux/file.h>
32#include <linux/personality.h>
33
34#include <linux/uaccess.h>
35#include <asm/syscalls.h>
36#include <asm/time.h>
37#include <asm/unistd.h>
38#include <asm/asm-prototypes.h>
39
40static inline long do_mmap2(unsigned long addr, size_t len,
41 unsigned long prot, unsigned long flags,
42 unsigned long fd, unsigned long off, int shift)
43{
44 long ret = -EINVAL;
45
46 if (!arch_validate_prot(prot, addr))
47 goto out;
48
49 if (shift) {
50 if (off & ((1 << shift) - 1))
51 goto out;
52 off >>= shift;
53 }
54
55 ret = ksys_mmap_pgoff(addr, len, prot, flags, fd, off);
56out:
57 return ret;
58}
59
60SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len,
61 unsigned long, prot, unsigned long, flags,
62 unsigned long, fd, unsigned long, pgoff)
63{
64 return do_mmap2(addr, len, prot, flags, fd, pgoff, PAGE_SHIFT-12);
65}
66
67SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len,
68 unsigned long, prot, unsigned long, flags,
69 unsigned long, fd, off_t, offset)
70{
71 return do_mmap2(addr, len, prot, flags, fd, offset, PAGE_SHIFT);
72}
73
74#ifdef CONFIG_PPC32
75
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79
80
81int
82ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct __kernel_old_timeval __user *tvp)
83{
84 if ( (unsigned long)n >= 4096 )
85 return sys_old_select((void __user *)n);
86
87 return sys_select(n, inp, outp, exp, tvp);
88}
89#endif
90
91#ifdef CONFIG_PPC64
92long ppc64_personality(unsigned long personality)
93{
94 long ret;
95
96 if (personality(current->personality) == PER_LINUX32
97 && personality(personality) == PER_LINUX)
98 personality = (personality & ~PER_MASK) | PER_LINUX32;
99 ret = sys_personality(personality);
100 if (personality(ret) == PER_LINUX32)
101 ret = (ret & ~PER_MASK) | PER_LINUX;
102 return ret;
103}
104#endif
105
106long ppc_fadvise64_64(int fd, int advice, u32 offset_high, u32 offset_low,
107 u32 len_high, u32 len_low)
108{
109 return ksys_fadvise64_64(fd, (u64)offset_high << 32 | offset_low,
110 (u64)len_high << 32 | len_low, advice);
111}
112
113SYSCALL_DEFINE0(switch_endian)
114{
115 struct thread_info *ti;
116
117 regs_set_return_msr(current->thread.regs,
118 current->thread.regs->msr ^ MSR_LE);
119
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124
125 ti = current_thread_info();
126 ti->flags |= _TIF_RESTOREALL;
127
128 return 0;
129}
130