1 /* profil.h: gprof profiling header file

     2 

     3    Copyright 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.

     4 

     5 This file is part of Cygwin.

     6 

     7 This software is a copyrighted work licensed under the terms of the

     8 Cygwin license.  Please consult the file "CYGWIN_LICENSE" for

     9 details. */

    10 

    11 /*

    12  * This file is taken from Cygwin distribution. Please keep it in sync.

    13  * The differences should be within __MINGW32__ guard.

    14  */

    15 

    16 /* profiling frequency.  (No larger than 1000) */

    17 #define PROF_HZ			100

    18 

    19 /* convert an addr to an index */

    20 #define PROFIDX(pc, base, scale)	\

    21   ({									\

    22     size_t i = (pc - base) / 2;				\

    23     if (sizeof (unsigned long long int) > sizeof (size_t))		\

    24       i = (unsigned long long int) i * scale / 65536;			\

    25     else								\

    26       i = i / 65536 * scale + i % 65536 * scale / 65536;		\

    27     i;									\

    28   })

    29 

    30 /* convert an index into an address */

    31 #define PROFADDR(idx, base, scale)		\

    32   ((base)					\

    33    + ((((unsigned long long)(idx) << 16)	\

    34        / (unsigned long long)(scale)) << 1))

    35 

    36 /* convert a bin size into a scale */

    37 #define PROFSCALE(range, bins)		(((bins) << 16) / ((range) >> 1))

    38 

    39 typedef void *_WINHANDLE;

    40 

    41 struct profinfo {

    42     _WINHANDLE targthr;			/* thread to profile */

    43     _WINHANDLE profthr;			/* profiling thread */

    44     u_short *counter;			/* profiling counters */

    45     u_long lowpc, highpc;		/* range to be profiled */

    46     u_int scale;			/* scale value of bins */

    47 };

    48 

    49 int profile_ctl(struct profinfo *, char *, size_t, u_long, u_int);

    50 int profil(char *, size_t, u_long, u_int);

    51