winsup/cygwin/local_includes/profil.h

   1 /* profil.h: gprof profiling header file
   2
   3 This file is part of Cygwin.
   4
   5 This software is a copyrighted work licensed under the terms of the
   6 Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
   7 details. */
   8
   9 /*
  10  * This file is taken from Cygwin distribution. Please keep it in sync.
  11  * The differences should be within __MINGW32__ guard.
  12  */
  13
  14 /* profiling frequency.  (No larger than 1000) */
  15 #define PROF_HZ                 100
  16
  17 /* convert an addr to an index */
  18 #define PROFIDX(pc, base, scale)        \
  19   ({                                                                    \
  20     size_t i = (pc - base) / 2;                         \
  21     if (sizeof (unsigned long long int) > sizeof (size_t))              \
  22       i = (unsigned long long int) i * scale / 65536;                   \
  23     else                                                                \
  24       i = i / 65536 * scale + i % 65536 * scale / 65536;                \
  25     i;                                                                  \
  26   })
  27
  28 /* convert an index into an address */
  29 #define PROFADDR(idx, base, scale)              \
  30   ((base)                                       \
  31    + ((((unsigned long long)(idx) << 16)        \
  32        / (unsigned long long)(scale)) << 1))
  33
  34 /* convert a bin size into a scale */
  35 #define PROFSCALE(range, bins)          (((bins) << 16) / ((range) >> 1))
  36
  37 typedef void *_WINHANDLE;
  38 #ifdef __MINGW32__
  39 #include <_bsd_types.h>
  40 #endif /* __MINGW32__*/
  41
  42 struct profinfo {
  43     _WINHANDLE targthr;                 /* thread to profile */
  44     _WINHANDLE profthr;                 /* profiling thread */
  45     _WINHANDLE quitevt;                 /* quit event */
  46     uint16_t *counter;                  /* profiling counters */
  47     size_t lowpc, highpc;               /* range to be profiled */
  48     uint32_t scale;                     /* scale value of bins */
  49 };
  50
  51 int profile_ctl(struct profinfo *, char *, size_t, size_t, uint32_t);
  52 int profil(char *, size_t, size_t, uint32_t);
  53