compiler/clib/__vfork.h

   1 #ifndef __VFORK_H
   2 #define __VFORK_H
   3
   4 /*
   5     Copyright © 2008, The AROS Development Team. All rights reserved.
   6     $Id$
   7 */
   8
   9 #include <exec/types.h>
  10 #include <dos/bptr.h>
  11 #include <exec/exec.h>
  12 #include <setjmp.h>
  13 #include <aros/startup.h>
  14
  15 /* Define index of a stack register value in jmp_buf.regs */
  16
  17 #if defined __i386__
  18 #   define STACK_INDEX (_JMPLEN-1)
  19 #elif defined __x86_64__
  20 #   define STACK_INDEX (_JMPLEN-1)
  21 #elif defined __powerpc__
  22 #   define STACK_INDEX 1
  23 #else
  24 #   error unsupported CPU type
  25 #endif
  26
  27 #define VFORK_MAGIC 0x666
  28
  29 #define GETUDATA ((struct vfork_data*) ((struct Task*) FindTask(NULL))->tc_UserData)
  30
  31 struct vfork_data
  32 {
  33     int magic;
  34     jmp_buf vfork_jump;
  35
  36     struct Task *parent;
  37     APTR parent_SPLower;
  38     APTR parent_SPUpper;
  39     APTR parent_SPReg;
  40     char ministack[4096] __attribute__ ((aligned));
  41
  42     APTR old_UserData;
  43     ULONG child_id;
  44     BYTE parent_signal;
  45
  46     struct Task *child;
  47     APTR child_SPLower;
  48     APTR child_SPUpper;
  49     APTR child_SPReg;
  50     APTR child_mempool;
  51     struct aros_startup child_startup;
  52     struct Library *aroscbase;
  53     int child_executed;
  54     int child_acpd_numslots;
  55     void *child_acpd_fd_array;
  56     int child_errno;
  57     BYTE child_signal;
  58
  59     ULONG exec_stacksize;
  60     BPTR exec_seglist;
  61     char *exec_arguments;
  62     char *exec_taskname;
  63     LONG exec_returncode;
  64 };
  65
  66 #endif /* __VFORK_H */