include/parrot/settings.h

   1 /* settings.h
   2  *  Copyright (C) 2001-2004, The Perl Foundation.
   3  *  SVN Info
   4  *     $Id$
   5  *  Overview:
   6  *     Overall settings for Parrot
   7  *  Data Structure and Algorithms:
   8  *  History: initial version 2004.08.13
   9  *  Notes:
  10  *  References:
  11  */
  12
  13 #ifndef PARROT_SETTINGS_H_GUARD
  14 #define PARROT_SETTINGS_H_GUARD
  15
  16 /*
  17  * DOD/GC switches
  18  */
  19
  20 /* If you are trying to debug GC problems which only occur on large test cases,
  21  * turning on GC_DEBUG should help make the problem appear with smaller data
  22  * samples by reducing various numbers, and causing DOD and allocation runs
  23  * to occur more frequently. It does significantly reduce performance. */
  24 #ifndef DISABLE_GC_DEBUG
  25 #  define DISABLE_GC_DEBUG 0
  26 #endif /* DISABLE_GC_DEBUG */
  27
  28 /* Helpful internal macro for testing whether we are currently
  29  * debugging garbage collection and memory management. See also the
  30  * definition of GC_VERBOSE in dod.c. */
  31 #if DISABLE_GC_DEBUG
  32 #  define GC_DEBUG(interp) 0
  33 #else
  34 #  define GC_DEBUG(interp) Interp_flags_TEST((interp), PARROT_GC_DEBUG_FLAG)
  35 #endif /* DISABLE_GC_DEBUG */
  36
  37 /*
  38  * GC_SUBSYSTEM selection
  39  * 0 ... MS  stop-the-world mark & sweep
  40  * 1 ... IMS incremental mark & sweep
  41  * 2 ... GMS generational mark & sweep
  42  *
  43  * Please note that only '0' is tested.
  44  */
  45
  46 #define PARROT_GC_SUBSYSTEM 0
  47
  48 #if PARROT_GC_SUBSYSTEM == 0
  49 #  define PARROT_GC_MS      1
  50 #  define PARROT_GC_IMS     0
  51 #  define PARROT_GC_GMS     0
  52 #endif
  53 #if PARROT_GC_SUBSYSTEM == 1
  54 #  define PARROT_GC_MS      0
  55 #  define PARROT_GC_IMS     1
  56 #  define PARROT_GC_GMS     0
  57 #endif
  58 #if PARROT_GC_SUBSYSTEM == 2
  59 #  define PARROT_GC_MS      0
  60 #  define PARROT_GC_IMS     0
  61 #  define PARROT_GC_GMS     1
  62 #endif
  63
  64
  65 /*
  66  * misc settings
  67  */
  68
  69 /*
  70  * JIT/i386 can use the CGP run core for external functions instead
  71  * of calling the function version of the opcode
  72  *
  73  * This is for some reason currently slower, so it's turned off
  74  */
  75
  76 #define PARROT_I386_JIT_CGP 0
  77
  78 #endif /* PARROT_SETTINGS_H_GUARD */
  79
  80 /*
  81  * Local variables:
  82  *   c-file-style: "parrot"
  83  * End:
  84  * vim: expandtab shiftwidth=4:
  85  */