| #include <linux/errno.h> |
| #include <linux/sched.h> |
| #include <linux/mm.h> |
| #include <linux/smp.h> |
| #include <linux/sem.h> |
| #include <linux/msg.h> |
| #include <linux/shm.h> |
| #include <linux/stat.h> |
| #include <linux/syscalls.h> |
| #include <linux/mman.h> |
| #include <linux/file.h> |
| #include <linux/utsname.h> |
| #include <linux/module.h> |
| #include <linux/fs.h> |
| #include <linux/ipc.h> |
| #include <asm/cacheflush.h> |
| #include <asm/uaccess.h> |
| #include <asm/unistd.h> |
| #include <asm/syscalls.h> |
| |
| /* |
| * sys_pipe() is the normal C calling standard for creating |
| * a pipe. It's not the way Unix traditionally does this, though. |
| */ |
| asmlinkage int sys_pipe(unsigned long r4, unsigned long r5, |
| unsigned long r6, unsigned long r7, |
| struct pt_regs __regs) |
| { |
| struct pt_regs *regs = RELOC_HIDE(&__regs, 0); |
| int fd[2]; |
| int error; |
| |
| error = do_pipe_flags(fd, 0); |
| if (!error) { |
| regs->regs[1] = fd[1]; |
| return fd[0]; |
| } |
| return error; |
| } |
| |
| asmlinkage ssize_t sys_pread_wrapper(unsigned int fd, char __user *buf, |
| size_t count, long dummy, loff_t pos) |
| { |
| return sys_pread64(fd, buf, count, pos); |
| } |
| |
| asmlinkage ssize_t sys_pwrite_wrapper(unsigned int fd, const char __user *buf, |
| size_t count, long dummy, loff_t pos) |
| { |
| return sys_pwrite64(fd, buf, count, pos); |
| } |
| |
| asmlinkage int sys_fadvise64_64_wrapper(int fd, u32 offset0, u32 offset1, |
| u32 len0, u32 len1, int advice) |
| { |
| #ifdef __LITTLE_ENDIAN__ |
| return sys_fadvise64_64(fd, (u64)offset1 << 32 | offset0, |
| (u64)len1 << 32 | len0, advice); |
| #else |
| return sys_fadvise64_64(fd, (u64)offset0 << 32 | offset1, |
| (u64)len0 << 32 | len1, advice); |
| #endif |
| } |
| |
| #if defined(CONFIG_CPU_SH2) || defined(CONFIG_CPU_SH2A) |
| #define SYSCALL_ARG3 "trapa #0x23" |
| #else |
| #define SYSCALL_ARG3 "trapa #0x13" |
| #endif |
| |
| /* |
| * Do a system call from kernel instead of calling sys_execve so we |
| * end up with proper pt_regs. |
| */ |
| int kernel_execve(const char *filename, char *const argv[], char *const envp[]) |
| { |
| register long __sc0 __asm__ ("r3") = __NR_execve; |
| register long __sc4 __asm__ ("r4") = (long) filename; |
| register long __sc5 __asm__ ("r5") = (long) argv; |
| register long __sc6 __asm__ ("r6") = (long) envp; |
| __asm__ __volatile__ (SYSCALL_ARG3 : "=z" (__sc0) |
| : "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6) |
| : "memory"); |
| return __sc0; |
| } |