| 1 | |
| 2 | #include <linux/errno.h>
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| 3 | #include <linux/sched.h>
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| 4 | #include <linux/sched/task_stack.h>
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| 5 | #include <linux/mm.h>
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| 6 | #include <linux/smp.h>
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| 7 | #include <linux/sem.h>
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| 8 | #include <linux/msg.h>
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| 9 | #include <linux/shm.h>
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| 10 | #include <linux/stat.h>
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| 11 | #include <linux/syscalls.h>
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| 12 | #include <linux/mman.h>
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| 13 | #include <linux/file.h>
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| 14 | #include <linux/module.h>
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| 15 | #include <linux/fs.h>
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| 16 | #include <linux/ipc.h>
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| 17 | #include <asm/cacheflush.h>
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| 18 | #include <linux/uaccess.h>
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| 19 | #include <asm/unistd.h>
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| 20 | #include <asm/syscalls.h>
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| 21 |
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| 22 | |
| 23 | * sys_pipe() is the normal C calling standard for creating
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| 24 | * a pipe. It's not the way Unix traditionally does this, though.
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| 25 |
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| 26 | asmlinkage int sys_sh_pipe(void)
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| 27 | {
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| 28 | int fd[2];
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| 29 | int error;
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| 30 |
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| 31 | error = do_pipe_flags(fd, 0);
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| 32 | if (!error) {
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| 33 | current_pt_regs()->regs[1] = fd[1];
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| 34 | return fd[0];
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| 35 | }
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| 36 | return error;
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| 37 | }
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| 38 |
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| 39 | asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf,
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| 40 | size_t count, long dummy, loff_t pos)
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| 41 | {
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| 42 | return ksys_pread64(fd, buf, count, pos);
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| 43 | }
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| 44 |
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| 45 | asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf,
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| 46 | size_t count, long dummy, loff_t pos)
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| 47 | {
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| 48 | return ksys_pwrite64(fd, buf, count, pos);
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| 49 | }
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| 50 |
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| 51 | asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1,
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| 52 | u32 len0, u32 len1, int advice)
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| 53 | {
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| 54 | #ifdef __LITTLE_ENDIAN__
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| 55 | return ksys_fadvise64_64(fd, (u64)offset1 << 32 | offset0,
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| 56 | (u64)len1 << 32 | len0, advice);
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| 57 | #else
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| 58 | return ksys_fadvise64_64(fd, (u64)offset0 << 32 | offset1,
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| 59 | (u64)len0 << 32 | len1, advice);
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| 60 | #endif
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| 61 | }
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| 62 |
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| 63 | |
| 64 | * swap the arguments the way that libc wants them instead of
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| 65 | * moving flags ahead of the 64-bit nbytes argument
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| 66 |
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| 67 | SYSCALL_DEFINE6(sh_sync_file_range6, int, fd, SC_ARG64(offset),
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| 68 | SC_ARG64(nbytes), unsigned int, flags)
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| 69 | {
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| 70 | return ksys_sync_file_range(fd, SC_VAL64(loff_t, offset),
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| 71 | SC_VAL64(loff_t, nbytes), flags);
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| 72 | }
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