arch/all-unix/kernel/allockernelbase.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <exec/execbase.h>
   7 #include <exec/memory.h>
   8 #include <proto/exec.h>
   9
  10 #include LC_LIBDEFS_FILE /* we want FUNCTIONS_COUNT */
  11
  12 #include <kernel_debug.h>
  13 #include <kernel_globals.h>
  14 #include "kernel_intern.h"
  15 #include "kernel_unix.h"
  16
  17 #define D(x)
  18
  19 struct KernelBase *AllocKernelBase(struct ExecBase *SysBase)
  20 {
  21     APTR mem;
  22     struct KernelBase *KernelBase;
  23     ULONG i = FUNCTIONS_COUNT * LIB_VECTSIZE;
  24
  25     /* Align vector table size */
  26     i  = ((i - 1) / sizeof(IPTR) + 1) * sizeof(IPTR);
  27
  28     /* Allocate the memory. Note that we have platform-specific portion in KernelBase. */
  29     mem = AllocMem(i + sizeof(struct UnixKernelBase), MEMF_PUBLIC|MEMF_CLEAR);
  30     if (!mem)
  31         return NULL;
  32
  33     /* Skip past the vector table */
  34     KernelBase = mem + i;
  35
  36     KernelBase->kb_PlatformData = AllocMem(sizeof(struct PlatformData), MEMF_ANY);
  37     D(bug("[KRN] PlatformData %p\n", KernelBase->kb_PlatformData));
  38
  39     if (!KernelBase->kb_PlatformData)
  40         return NULL;
  41
  42     /* Set global KernelBase storage and return */
  43     setKernelBase(KernelBase);
  44     return KernelBase;
  45 }