arch/all-unix/kernel/allocpages.c

   1 #include <aros/libcall.h>
   2
   3 #include <kernel_base.h>
   4 #include <kernel_intern.h>
   5
   6 #include <sys/mman.h>
   7 #include <inttypes.h>
   8
   9 AROS_LH3I(void *, KrnAllocPages,
  10          AROS_LHA(uint32_t, length, D0),
  11          AROS_LHA(uint32_t, flags, D1),
  12          AROS_LHA(KRN_MapAttr, protection, D2),
  13          struct KernelBase *, KernelBase, 27, Kernel)
  14 {
  15     AROS_LIBFUNC_INIT
  16
  17     int flags_unix = 0;
  18     void *map = 0;
  19
  20     if (protection & MAP_Readable)
  21         flags_unix |= PROT_READ;
  22     if (protection & MAP_Writable)
  23         flags_unix |= PROT_WRITE;
  24     if (protection & MAP_Executable)
  25         flags_unix |= PROT_EXEC;
  26
  27     /* Darwin does not define MAP_ANONYMOUS */
  28     map = KernelIFace.mmap(NULL, length, flags_unix, MAP_PRIVATE | MAP_ANON, -1, 0);
  29     AROS_HOST_BARRIER
  30
  31     return map;
  32
  33     AROS_LIBFUNC_EXIT
  34 }