arch/um/include/skas/skas.h

   1 /*
   2  * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #ifndef __SKAS_H
   7 #define __SKAS_H
   8
   9 #include "mm_id.h"
  10 #include "sysdep/ptrace.h"
  11
  12 extern int userspace_pid[];
  13 extern int proc_mm, ptrace_faultinfo, ptrace_ldt;
  14 extern int skas_needs_stub;
  15
  16 extern void switch_threads(void *me, void *next);
  17 extern void thread_wait(void *sw, void *fb);
  18 extern void new_thread(void *stack, void **switch_buf_ptr, void **fork_buf_ptr,
  19                        void (*handler)(int));
  20 extern int start_idle_thread(void *stack, void *switch_buf_ptr,
  21                              void **fork_buf_ptr);
  22 extern int user_thread(unsigned long stack, int flags);
  23 extern void userspace(union uml_pt_regs *regs);
  24 extern void new_thread_proc(void *stack, void (*handler)(int sig));
  25 extern void new_thread_handler(int sig);
  26 extern void handle_syscall(union uml_pt_regs *regs);
  27 extern int map(struct mm_id * mm_idp, unsigned long virt,
  28                unsigned long len, int r, int w, int x, int phys_fd,
  29                unsigned long long offset, int done, void **data);
  30 extern int unmap(struct mm_id * mm_idp, void *addr, unsigned long len,
  31                  int done, void **data);
  32 extern int protect(struct mm_id * mm_idp, unsigned long addr,
  33                    unsigned long len, int r, int w, int x, int done,
  34                    void **data);
  35 extern void user_signal(int sig, union uml_pt_regs *regs, int pid);
  36 extern int new_mm(unsigned long stack);
  37 extern int start_userspace(unsigned long stub_stack);
  38 extern int copy_context_skas0(unsigned long stack, int pid);
  39 extern void get_skas_faultinfo(int pid, struct faultinfo * fi);
  40 extern long execute_syscall_skas(void *r);
  41 extern unsigned long current_stub_stack(void);
  42 extern long run_syscall_stub(struct mm_id * mm_idp,
  43                              int syscall, unsigned long *args, long expected,
  44                              void **addr, int done);
  45 extern long syscall_stub_data(struct mm_id * mm_idp,
  46                               unsigned long *data, int data_count,
  47                               void **addr, void **stub_addr);
  48
  49 #endif