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Source at commit 0de2b2b3be81048189a32f7a3d3ba0ba9ec817b6 created 11 years 11 months ago. By Maarten ter Huurne, MIPS: JZ4740: Fixed value for round robin constant. | |
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1 | #include <linux/errno.h> |
2 | #include <linux/sched.h> |
3 | #include <linux/mm.h> |
4 | #include <linux/smp.h> |
5 | #include <linux/sem.h> |
6 | #include <linux/msg.h> |
7 | #include <linux/shm.h> |
8 | #include <linux/stat.h> |
9 | #include <linux/syscalls.h> |
10 | #include <linux/mman.h> |
11 | #include <linux/file.h> |
12 | #include <linux/module.h> |
13 | #include <linux/fs.h> |
14 | #include <linux/ipc.h> |
15 | #include <asm/cacheflush.h> |
16 | #include <asm/uaccess.h> |
17 | #include <asm/unistd.h> |
18 | #include <asm/syscalls.h> |
19 | |
20 | /* |
21 | * sys_pipe() is the normal C calling standard for creating |
22 | * a pipe. It's not the way Unix traditionally does this, though. |
23 | */ |
24 | asmlinkage int sys_sh_pipe(unsigned long r4, unsigned long r5, |
25 | unsigned long r6, unsigned long r7, |
26 | struct pt_regs __regs) |
27 | { |
28 | struct pt_regs *regs = RELOC_HIDE(&__regs, 0); |
29 | int fd[2]; |
30 | int error; |
31 | |
32 | error = do_pipe_flags(fd, 0); |
33 | if (!error) { |
34 | regs->regs[1] = fd[1]; |
35 | return fd[0]; |
36 | } |
37 | return error; |
38 | } |
39 | |
40 | asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf, |
41 | size_t count, long dummy, loff_t pos) |
42 | { |
43 | return sys_pread64(fd, buf, count, pos); |
44 | } |
45 | |
46 | asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf, |
47 | size_t count, long dummy, loff_t pos) |
48 | { |
49 | return sys_pwrite64(fd, buf, count, pos); |
50 | } |
51 | |
52 | asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1, |
53 | u32 len0, u32 len1, int advice) |
54 | { |
55 | #ifdef __LITTLE_ENDIAN__ |
56 | return sys_fadvise64_64(fd, (u64)offset1 << 32 | offset0, |
57 | (u64)len1 << 32 | len0, advice); |
58 | #else |
59 | return sys_fadvise64_64(fd, (u64)offset0 << 32 | offset1, |
60 | (u64)len0 << 32 | len1, advice); |
61 | #endif |
62 | } |
63 | |
64 | #if defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH2A) |
65 | #define SYSCALL_ARG3 "trapa #0x23" |
66 | #else |
67 | #define SYSCALL_ARG3 "trapa #0x13" |
68 | #endif |
69 | |
70 | /* |
71 | * Do a system call from kernel instead of calling sys_execve so we |
72 | * end up with proper pt_regs. |
73 | */ |
74 | int kernel_execve(const char *filename, |
75 | const char *const argv[], |
76 | const char *const envp[]) |
77 | { |
78 | register long __sc0 __asm__ ("r3") = __NR_execve; |
79 | register long __sc4 __asm__ ("r4") = (long) filename; |
80 | register long __sc5 __asm__ ("r5") = (long) argv; |
81 | register long __sc6 __asm__ ("r6") = (long) envp; |
82 | __asm__ __volatile__ (SYSCALL_ARG3 : "=z" (__sc0) |
83 | : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6) |
84 | : "memory"); |
85 | return __sc0; |
86 | } |
87 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9