gprof/gmon_out.h

   1 /*
   2  * This file specifies the format of gmon.out files.  It should have
   3  * as few external dependencies as possible as it is going to be
   4  * included in many different programs.  That is, minimize the
   5  * number of #include's.
   6  *
   7  * A gmon.out file consists of a header (defined by gmon_hdr) followed
   8  * by a sequence of records.  Each record starts with a one-byte tag
   9  * identifying the type of records, followed by records specific data.
  10  */
  11 #ifndef gmon_out_h
  12 #define gmon_out_h
  13
  14 #define GMON_MAGIC      "gmon"  /* magic cookie */
  15 #define GMON_VERSION    1       /* version number */
  16
  17 /*
  18  * Raw header as it appears on file (without padding):
  19  */
  20 struct gmon_hdr {
  21     char        cookie[4];
  22     char        version[4];
  23     char        spare[3*4];
  24 };
  25
  26 /* types of records in this file: */
  27 typedef enum {
  28     GMON_TAG_TIME_HIST, GMON_TAG_CG_ARC, GMON_TAG_BB_COUNT
  29 } GMON_Record_Tag;
  30
  31 struct gmon_hist_hdr {
  32     char low_pc[sizeof(bfd_vma)];       /* base pc address of sample buffer */
  33     char high_pc[sizeof(bfd_vma)];      /* max pc address of sampled buffer */
  34     char hist_size[4];                  /* size of sample buffer */
  35     char prof_rate[4];                  /* profiling clock rate */
  36     char dimen[15];                     /* phys. dim., usually "seconds" */
  37     char dimen_abbrev;                  /* usually 's' for "seconds" */
  38 };
  39
  40 struct gmon_cg_arc_record {
  41     char from_pc[sizeof(bfd_vma)];      /* address within caller's body */
  42     char self_pc[sizeof(bfd_vma)];      /* address within callee's body */
  43     char count[4];                      /* number of arc traversals */
  44 };
  45
  46 #endif /* gmon_out_h */