Wine Cross Reference
wine/server/context_sparc.c

   /*
    * Sparc register context support
    *
    * Copyright (C) 2000 Ulrich Weigand
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "config.h"
  
  #ifdef __sparc__
  
  #include <assert.h>
  #include <errno.h>
  #include <sys/types.h>
  #ifdef HAVE_SYS_REG_H
  # include <sys/reg.h>
  #endif
  #include <stdarg.h>
  #include <unistd.h>
  #ifdef HAVE_SYS_PTRACE_H
  # include <sys/ptrace.h>
  #endif
  
  #include "windef.h"
  
  #include "file.h"
  #include "thread.h"
  #include "request.h"
  
  #if 0  /* no longer used */
  
  #if defined(__sun) || defined(__sun__)
  
  /* retrieve a thread context */
  static void get_thread_context_ptrace( struct thread *thread, unsigned int flags, CONTEXT *context )
  {
      int pid = get_ptrace_pid(thread);
      if (flags & CONTEXT_FULL)
      {
          struct regs regs;
          if (ptrace( PTRACE_GETREGS, pid, 0, (int) &regs ) == -1) goto error;
          if (flags & CONTEXT_INTEGER)
          {
              context->g0 = 0;
              context->g1 = regs.r_g1;
              context->g2 = regs.r_g2;
              context->g3 = regs.r_g3;
              context->g4 = regs.r_g4;
              context->g5 = regs.r_g5;
              context->g6 = regs.r_g6;
              context->g7 = regs.r_g7;
  
              context->o0 = regs.r_o0;
              context->o1 = regs.r_o1;
              context->o2 = regs.r_o2;
              context->o3 = regs.r_o3;
              context->o4 = regs.r_o4;
              context->o5 = regs.r_o5;
              context->o6 = regs.r_o6;
              context->o7 = regs.r_o7;
  
              /* FIXME: local and in registers */
          }
          if (flags & CONTEXT_CONTROL)
          {
              context->psr = regs.r_psr;
              context->pc  = regs.r_pc;
              context->npc = regs.r_npc;
              context->y   = regs.r_y;
              context->wim = 0;  /* FIXME */
              context->tbr = 0;  /* FIXME */
          }
          context |= flags & (CONTEXT_CONTROL|CONTEXT_INTEGER);
      }
      if (flags & CONTEXT_FLOATING_POINT)
      {
          /* FIXME */
      }
      return;
   error:
      file_set_error();
  }
  
  
  /* set a thread context */
  static void set_thread_context_ptrace( struct thread *thread, unsigned int flags, const CONTEXT *context )
 {
     /* FIXME */
 }
 
 #else  /* __sun__ */
 #error You must implement get/set_thread_context_ptrace for your platform
 #endif  /* __sun__ */
 
 #endif /* 0 */
 
 /* copy a context structure according to the flags */
 void copy_context( CONTEXT *to, const CONTEXT *from, unsigned int flags )
 {
     flags &= ~CONTEXT_SPARC;  /* get rid of CPU id */
     if (flags & CONTEXT_CONTROL)
     {
         to->psr    = from->psr;
         to->pc     = from->pc;
         to->npc    = from->npc;
         to->y      = from->y;
         to->wim    = from->wim;
         to->tbr    = from->tbr;
     }
     if (flags & CONTEXT_INTEGER)
     {
         to->g0 = from->g0;
         to->g1 = from->g1;
         to->g2 = from->g2;
         to->g3 = from->g3;
         to->g4 = from->g4;
         to->g5 = from->g5;
         to->g6 = from->g6;
         to->g7 = from->g7;
         to->o0 = from->o0;
         to->o1 = from->o1;
         to->o2 = from->o2;
         to->o3 = from->o3;
         to->o4 = from->o4;
         to->o5 = from->o5;
         to->o6 = from->o6;
         to->o7 = from->o7;
         to->l0 = from->l0;
         to->l1 = from->l1;
         to->l2 = from->l2;
         to->l3 = from->l3;
         to->l4 = from->l4;
         to->l5 = from->l5;
         to->l6 = from->l6;
         to->l7 = from->l7;
         to->i0 = from->i0;
         to->i1 = from->i1;
         to->i2 = from->i2;
         to->i3 = from->i3;
         to->i4 = from->i4;
         to->i5 = from->i5;
         to->i6 = from->i6;
         to->i7 = from->i7;
     }
     if (flags & CONTEXT_FLOATING_POINT)
     {
         /* FIXME */
     }
     context |= flags & (CONTEXT_CONTROL|CONTEXT_INTEGER);
 }
 
 /* retrieve the current instruction pointer of a context */
 void *get_context_ip( const CONTEXT *context )
 {
     return (void *)context->pc;
 }
 
 /* return the context flag that contains the CPU id */
 unsigned int get_context_cpu_flag(void)
 {
     return CONTEXT_SPARC;
 }
 
 /* return only the context flags that correspond to system regs */
 /* (system regs are the ones we can't access on the client side) */
 unsigned int get_context_system_regs( unsigned int flags )
 {
     return 0;  /* FIXME: implement client-side handling */
 }
 
 #endif  /* __sparc__ */