includes/rts/prof/LDV.h

   1 /* -----------------------------------------------------------------------------
   2  *
   3  * (c) The University of Glasgow, 2004
   4  *
   5  * Lag/Drag/Void profiling.
   6  *
   7  * ---------------------------------------------------------------------------*/
   8
   9 #ifndef RTS_PROF_LDV_H
  10 #define RTS_PROF_LDV_H
  11
  12 #ifdef PROFILING
  13
  14 /* retrieves the LDV word from closure c */
  15 #define LDVW(c)                 (((StgClosure *)(c))->header.prof.hp.ldvw)
  16
  17 /*
  18  * Stores the creation time for closure c.
  19  * This macro is called at the very moment of closure creation.
  20  *
  21  * NOTE: this initializes LDVW(c) to zero, which ensures that there
  22  * is no conflict between retainer profiling and LDV profiling,
  23  * because retainer profiling also expects LDVW(c) to be initialised
  24  * to zero.
  25  */
  26
  27 #ifdef CMINUSMINUS
  28
  29 #define LDV_RECORD_DEAD_FILL_SLOP_DYNAMIC(c) \
  30   foreign "C" LDV_recordDead_FILL_SLOP_DYNAMIC(c "ptr")
  31
  32 #else
  33
  34 #define LDV_RECORD_CREATE(c)   \
  35   LDVW((c)) = ((StgWord)RTS_DEREF(era) << LDV_SHIFT) | LDV_STATE_CREATE
  36
  37 void LDV_recordDead_FILL_SLOP_DYNAMIC( StgClosure *p );
  38
  39 #define LDV_RECORD_DEAD_FILL_SLOP_DYNAMIC(c) \
  40   LDV_recordDead_FILL_SLOP_DYNAMIC(c)
  41
  42 #endif
  43
  44 #else  /* !PROFILING */
  45
  46 #define LDV_RECORD_CREATE(c)   /* nothing */
  47 #define LDV_RECORD_DEAD_FILL_SLOP_DYNAMIC(c)  /* nothing */
  48
  49 #endif /* PROFILING */
  50
  51 #endif /* STGLDVPROF_H */