arch/all-unix/kernel/allockernelbase.c

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