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/* gmon_io.c - Input and output from/to gmon.out files.
 
   Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
   Free Software Foundation, Inc.
 
   This file is part of GNU Binutils.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
   02110-1301, USA.  */
 
#include "gprof.h"
#include "binary-io.h"
#include "search_list.h"
#include "source.h"
#include "symtab.h"
#include "cg_arcs.h"
#include "basic_blocks.h"
#include "corefile.h"
#include "call_graph.h"
#include "gmon_io.h"
#include "gmon_out.h"
#include "gmon.h"               /* Fetch header for old format.  */
#include "hertz.h"
#include "hist.h"
#include "libiberty.h"
 
enum gmon_ptr_size {
  ptr_32bit,
  ptr_64bit
};
 
enum gmon_ptr_signedness {
  ptr_signed,
  ptr_unsigned
};
 
static enum gmon_ptr_size gmon_get_ptr_size (void);
static enum gmon_ptr_signedness gmon_get_ptr_signedness (void);
 
#ifdef BFD_HOST_U_64_BIT
static int gmon_io_read_64 (FILE *, BFD_HOST_U_64_BIT *);
static int gmon_io_write_64 (FILE *, BFD_HOST_U_64_BIT);
#endif
static int gmon_read_raw_arc
  (FILE *, bfd_vma *, bfd_vma *, unsigned long *);
static int gmon_write_raw_arc
  (FILE *, bfd_vma, bfd_vma, unsigned long);
 
int gmon_input = 0;
int gmon_file_version = 0;       /* 0 == old (non-versioned) file format.  */
 
static enum gmon_ptr_size
gmon_get_ptr_size ()
{
  int size;
 
  /* Pick best size for pointers.  Start with the ELF size, and if not
     elf go with the architecture's address size.  */
  size = bfd_get_arch_size (core_bfd);
  if (size == -1)
    size = bfd_arch_bits_per_address (core_bfd);
 
  switch (size)
    {
    case 32:
      return ptr_32bit;
 
    case 64:
      return ptr_64bit;
 
    default:
      fprintf (stderr, _("%s: address size has unexpected value of %u\n"),
               whoami, size);
      done (1);
    }
}
 
static enum gmon_ptr_signedness
gmon_get_ptr_signedness ()
{
  int sext;
 
  /* Figure out whether to sign extend.  If BFD doesn't know, assume no.  */
  sext = bfd_get_sign_extend_vma (core_bfd);
  if (sext == -1)
    return ptr_unsigned;
  return (sext ? ptr_signed : ptr_unsigned);
}
 
int
gmon_io_read_32 (FILE *ifp, unsigned int *valp)
{
  char buf[4];
 
  if (fread (buf, 1, 4, ifp) != 4)
    return 1;
  *valp = bfd_get_32 (core_bfd, buf);
  return 0;
}
 
#ifdef BFD_HOST_U_64_BIT
static int
gmon_io_read_64 (FILE *ifp, BFD_HOST_U_64_BIT *valp)
{
  char buf[8];
 
  if (fread (buf, 1, 8, ifp) != 8)
    return 1;
  *valp = bfd_get_64 (core_bfd, buf);
  return 0;
}
#endif
 
int
gmon_io_read_vma (FILE *ifp, bfd_vma *valp)
{
  unsigned int val32;
#ifdef BFD_HOST_U_64_BIT
  BFD_HOST_U_64_BIT val64;
#endif
 
  switch (gmon_get_ptr_size ())
    {
    case ptr_32bit:
      if (gmon_io_read_32 (ifp, &val32))
        return 1;
      if (gmon_get_ptr_signedness () == ptr_signed)
        *valp = (int) val32;
      else
        *valp = val32;
      break;
 
#ifdef BFD_HOST_U_64_BIT
    case ptr_64bit:
      if (gmon_io_read_64 (ifp, &val64))
        return 1;
#ifdef BFD_HOST_64_BIT
      if (gmon_get_ptr_signedness () == ptr_signed)
        *valp = (BFD_HOST_64_BIT) val64;
      else
#endif
        *valp = val64;
      break;
#endif
    }
  return 0;
}
 
int
gmon_io_read (FILE *ifp, char *buf, size_t n)
{
  if (fread (buf, 1, n, ifp) != n)
    return 1;
  return 0;
}
 
int
gmon_io_write_32 (FILE *ofp, unsigned int val)
{
  char buf[4];
 
  bfd_put_32 (core_bfd, (bfd_vma) val, buf);
  if (fwrite (buf, 1, 4, ofp) != 4)
    return 1;
  return 0;
}
 
#ifdef BFD_HOST_U_64_BIT
static int
gmon_io_write_64 (FILE *ofp, BFD_HOST_U_64_BIT val)
{
  char buf[8];
 
  bfd_put_64 (core_bfd, (bfd_vma) val, buf);
  if (fwrite (buf, 1, 8, ofp) != 8)
    return 1;
  return 0;
}
#endif
 
int
gmon_io_write_vma (FILE *ofp, bfd_vma val)
{
 
  switch (gmon_get_ptr_size ())
    {
    case ptr_32bit:
      if (gmon_io_write_32 (ofp, (unsigned int) val))
        return 1;
      break;
 
#ifdef BFD_HOST_U_64_BIT
    case ptr_64bit:
      if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) val))
        return 1;
      break;
#endif
    }
  return 0;
}
 
int
gmon_io_write_8 (FILE *ofp, unsigned int val)
{
  char buf[1];
 
  bfd_put_8 (core_bfd, val, buf);
  if (fwrite (buf, 1, 1, ofp) != 1)
    return 1;
  return 0;
}
 
int
gmon_io_write (FILE *ofp, char *buf, size_t n)
{
  if (fwrite (buf, 1, n, ofp) != n)
    return 1;
  return 0;
}
 
static int
gmon_read_raw_arc (FILE *ifp, bfd_vma *fpc, bfd_vma *spc, unsigned long *cnt)
{
#ifdef BFD_HOST_U_64_BIT
  BFD_HOST_U_64_BIT cnt64;
#endif
  unsigned int cnt32;
 
  if (gmon_io_read_vma (ifp, fpc)
      || gmon_io_read_vma (ifp, spc))
    return 1;
 
  switch (gmon_get_ptr_size ())
    {
    case ptr_32bit:
      if (gmon_io_read_32 (ifp, &cnt32))
        return 1;
      *cnt = cnt32;
      break;
 
#ifdef BFD_HOST_U_64_BIT
    case ptr_64bit:
      if (gmon_io_read_64 (ifp, &cnt64))
        return 1;
      *cnt = cnt64;
      break;
#endif
 
    default:
      return 1;
    }
  return 0;
}
 
static int
gmon_write_raw_arc (FILE *ofp, bfd_vma fpc, bfd_vma spc, unsigned long cnt)
{
 
  if (gmon_io_write_vma (ofp, fpc)
      || gmon_io_write_vma (ofp, spc))
    return 1;
 
  switch (gmon_get_ptr_size ())
    {
    case ptr_32bit:
      if (gmon_io_write_32 (ofp, (unsigned int) cnt))
        return 1;
      break;
 
#ifdef BFD_HOST_U_64_BIT
    case ptr_64bit:
      if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) cnt))
        return 1;
      break;
#endif
    }
  return 0;
}
 
void
gmon_out_read (const char *filename)
{
  FILE *ifp;
  struct gmon_hdr ghdr;
  unsigned char tag;
  int nhist = 0, narcs = 0, nbbs = 0;
 
  /* Open gmon.out file.  */
  if (strcmp (filename, "-") == 0)
    {
      ifp = stdin;
      SET_BINARY (fileno (stdin));
    }
  else
    {
      ifp = fopen (filename, FOPEN_RB);
 
      if (!ifp)
        {
          perror (filename);
          done (1);
        }
    }
 
  if (fread (&ghdr, sizeof (struct gmon_hdr), 1, ifp) != 1)
    {
      fprintf (stderr, _("%s: file too short to be a gmon file\n"),
               filename);
      done (1);
    }
 
  if ((file_format == FF_MAGIC)
      || (file_format == FF_AUTO && !strncmp (&ghdr.cookie[0], GMON_MAGIC, 4)))
    {
      if (file_format == FF_MAGIC && strncmp (&ghdr.cookie[0], GMON_MAGIC, 4))
        {
          fprintf (stderr, _("%s: file `%s' has bad magic cookie\n"),
                   whoami, filename);
          done (1);
        }
 
      /* Right magic, so it's probably really a new gmon.out file.  */
      gmon_file_version = bfd_get_32 (core_bfd, (bfd_byte *) ghdr.version);
 
      if (gmon_file_version != GMON_VERSION && gmon_file_version != 0)
        {
          fprintf (stderr,
                   _("%s: file `%s' has unsupported version %d\n"),
                   whoami, filename, gmon_file_version);
          done (1);
        }
 
      /* Read in all the records.  */
      while (fread (&tag, sizeof (tag), 1, ifp) == 1)
        {
          switch (tag)
            {
            case GMON_TAG_TIME_HIST:
              ++nhist;
              gmon_input |= INPUT_HISTOGRAM;
              hist_read_rec (ifp, filename);
              break;
 
            case GMON_TAG_CG_ARC:
              ++narcs;
              gmon_input |= INPUT_CALL_GRAPH;
              cg_read_rec (ifp, filename);
              break;
 
            case GMON_TAG_BB_COUNT:
              ++nbbs;
              gmon_input |= INPUT_BB_COUNTS;
              bb_read_rec (ifp, filename);
              break;
 
            default:
              fprintf (stderr,
                       _("%s: %s: found bad tag %d (file corrupted?)\n"),
                       whoami, filename, tag);
              done (1);
            }
        }
    }
  else if (file_format == FF_AUTO
           || file_format == FF_BSD
           || file_format == FF_BSD44)
    {
      struct hdr
      {
        bfd_vma low_pc;
        bfd_vma high_pc;
        unsigned int ncnt;
      };
      unsigned int i;
      int samp_bytes, header_size = 0;
      unsigned long count;
      bfd_vma from_pc, self_pc;
      UNIT raw_bin_count;
      struct hdr tmp;
      unsigned int version;
      unsigned int hist_num_bins;
 
      /* Information from a gmon.out file is in two parts: an array of
         sampling hits within pc ranges, and the arcs.  */
      gmon_input = INPUT_HISTOGRAM | INPUT_CALL_GRAPH;
 
      /* This fseek() ought to work even on stdin as long as it's
         not an interactive device (heck, is there anybody who would
         want to type in a gmon.out at the terminal?).  */
      if (fseek (ifp, 0, SEEK_SET) < 0)
        {
          perror (filename);
          done (1);
        }
 
      /* The beginning of the old BSD header and the 4.4BSD header
         are the same: lowpc, highpc, ncnt  */
      if (gmon_io_read_vma (ifp, &tmp.low_pc)
          || gmon_io_read_vma (ifp, &tmp.high_pc)
          || gmon_io_read_32 (ifp, &tmp.ncnt))
        {
 bad_gmon_file:
          fprintf (stderr, _("%s: file too short to be a gmon file\n"),
                   filename);
          done (1);
        }
 
      /* Check to see if this a 4.4BSD-style header.  */
      if (gmon_io_read_32 (ifp, &version))
        goto bad_gmon_file;
 
      if (version == GMONVERSION)
        {
          unsigned int profrate;
 
          /* 4.4BSD format header.  */
          if (gmon_io_read_32 (ifp, &profrate))
            goto bad_gmon_file;
 
          if (!histograms)
            hz = profrate;
          else if (hz != (int) profrate)
            {
              fprintf (stderr,
                       _("%s: profiling rate incompatible with first gmon file\n"),
                       filename);
              done (1);
            }
 
          switch (gmon_get_ptr_size ())
            {
            case ptr_32bit:
              header_size = GMON_HDRSIZE_BSD44_32;
              break;
 
            case ptr_64bit:
              header_size = GMON_HDRSIZE_BSD44_64;
              break;
            }
        }
      else
        {
          /* Old style BSD format.  */
          if (file_format == FF_BSD44)
            {
              fprintf (stderr, _("%s: file `%s' has bad magic cookie\n"),
                       whoami, filename);
              done (1);
            }
 
          switch (gmon_get_ptr_size ())
            {
            case ptr_32bit:
              header_size = GMON_HDRSIZE_OLDBSD_32;
              break;
 
            case ptr_64bit:
              header_size = GMON_HDRSIZE_OLDBSD_64;
              break;
            }
        }
 
      /* Position the file to after the header.  */
      if (fseek (ifp, header_size, SEEK_SET) < 0)
        {
          perror (filename);
          done (1);
        }
 
      samp_bytes = tmp.ncnt - header_size;
      hist_num_bins = samp_bytes / sizeof (UNIT);
      if (histograms && (tmp.low_pc != histograms->lowpc
                         || tmp.high_pc != histograms->highpc
                         || (hist_num_bins != histograms->num_bins)))
        {
          fprintf (stderr, _("%s: incompatible with first gmon file\n"),
                   filename);
          done (1);
        }
 
      if (!histograms)
        {
          num_histograms = 1;
          histograms = (struct histogram *) xmalloc (sizeof (struct histogram));
          histograms->lowpc = tmp.low_pc;
          histograms->highpc = tmp.high_pc;
          histograms->num_bins = hist_num_bins;
          hist_scale = (double)((tmp.high_pc - tmp.low_pc) / sizeof (UNIT))
            / hist_num_bins;
          histograms->sample = (int *) xmalloc (hist_num_bins * sizeof (int));
          memset (histograms->sample, 0,
                  hist_num_bins * sizeof (int));
        }
 
      DBG (SAMPLEDEBUG,
           printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx ncnt %d\n",
                   (unsigned long) tmp.low_pc, (unsigned long) tmp.high_pc,
                   tmp.ncnt);
           printf ("[gmon_out_read] samp_bytes %d hist_num_bins %d\n",
                   samp_bytes, hist_num_bins));
 
      /* Make sure that we have sensible values.  */
      if (samp_bytes < 0 || histograms->lowpc > histograms->highpc)
        {
          fprintf (stderr,
            _("%s: file '%s' does not appear to be in gmon.out format\n"),
            whoami, filename);
          done (1);
        }
 
      if (hist_num_bins)
        ++nhist;
 
      for (i = 0; i < hist_num_bins; ++i)
        {
          if (fread (raw_bin_count, sizeof (raw_bin_count), 1, ifp) != 1)
            {
              fprintf (stderr,
                       _("%s: unexpected EOF after reading %d/%d bins\n"),
                       whoami, --i, hist_num_bins);
              done (1);
            }
 
          histograms->sample[i]
            += bfd_get_16 (core_bfd, (bfd_byte *) raw_bin_count);
        }
 
      /* The rest of the file consists of a bunch of
         <from,self,count> tuples.  */
      while (gmon_read_raw_arc (ifp, &from_pc, &self_pc, &count) == 0)
        {
          ++narcs;
 
          DBG (SAMPLEDEBUG,
             printf ("[gmon_out_read] frompc 0x%lx selfpc 0x%lx count %lu\n",
                     (unsigned long) from_pc, (unsigned long) self_pc, count));
 
          /* Add this arc.  */
          cg_tally (from_pc, self_pc, count);
        }
 
      if (hz == HZ_WRONG)
        {
          /* How many ticks per second?  If we can't tell, report
             time in ticks.  */
          hz = hertz ();
 
          if (hz == HZ_WRONG)
            {
              hz = 1;
              fprintf (stderr, _("time is in ticks, not seconds\n"));
            }
        }
    }
  else
    {
      fprintf (stderr, _("%s: don't know how to deal with file format %d\n"),
               whoami, file_format);
      done (1);
    }
 
  if (ifp != stdin)
    fclose (ifp);
 
  if (output_style & STYLE_GMON_INFO)
    {
      printf (_("File `%s' (version %d) contains:\n"),
              filename, gmon_file_version);
      printf (nhist == 1 ?
              _("\t%d histogram record\n") :
              _("\t%d histogram records\n"), nhist);
      printf (narcs == 1 ?
              _("\t%d call-graph record\n") :
              _("\t%d call-graph records\n"), narcs);
      printf (nbbs == 1 ?
              _("\t%d basic-block count record\n") :
              _("\t%d basic-block count records\n"), nbbs);
      first_output = FALSE;
    }
}
 
 
void
gmon_out_write (const char *filename)
{
  FILE *ofp;
  struct gmon_hdr ghdr;
 
  ofp = fopen (filename, FOPEN_WB);
  if (!ofp)
    {
      perror (filename);
      done (1);
    }
 
  if (file_format == FF_AUTO || file_format == FF_MAGIC)
    {
      /* Write gmon header.  */
 
      memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
      bfd_put_32 (core_bfd, (bfd_vma) GMON_VERSION, (bfd_byte *) ghdr.version);
 
      if (fwrite (&ghdr, sizeof (ghdr), 1, ofp) != 1)
        {
          perror (filename);
          done (1);
        }
 
      /* Write execution time histogram if we have one.  */
      if (gmon_input & INPUT_HISTOGRAM)
        hist_write_hist (ofp, filename);
 
      /* Write call graph arcs if we have any.  */
      if (gmon_input & INPUT_CALL_GRAPH)
        cg_write_arcs (ofp, filename);
 
      /* Write basic-block info if we have it.  */
      if (gmon_input & INPUT_BB_COUNTS)
        bb_write_blocks (ofp, filename);
    }
  else if (file_format == FF_BSD || file_format == FF_BSD44)
    {
      UNIT raw_bin_count;
      unsigned int i, hdrsize;
      unsigned padsize;
      char pad[3*4];
      Arc *arc;
      Sym *sym;
 
      memset (pad, 0, sizeof (pad));
 
      hdrsize = 0;
      /* Decide how large the header will be.  Use the 4.4BSD format
         header if explicitly specified, or if the profiling rate is
         non-standard.  Otherwise, use the old BSD format.  */
      if (file_format == FF_BSD44
          || hz != hertz())
        {
          padsize = 3*4;
          switch (gmon_get_ptr_size ())
            {
            case ptr_32bit:
              hdrsize = GMON_HDRSIZE_BSD44_32;
              break;
 
            case ptr_64bit:
              hdrsize = GMON_HDRSIZE_BSD44_64;
              break;
            }
        }
      else
        {
          padsize = 0;
          switch (gmon_get_ptr_size ())
            {
            case ptr_32bit:
              hdrsize = GMON_HDRSIZE_OLDBSD_32;
              break;
 
            case ptr_64bit:
              hdrsize = GMON_HDRSIZE_OLDBSD_64;
              /* FIXME: Checking host compiler defines here means that we can't
                 use a cross gprof alpha OSF.  */
#if defined(__alpha__) && defined (__osf__)
              padsize = 4;
#endif
              break;
            }
        }
 
      /* Write the parts of the headers that are common to both the
         old BSD and 4.4BSD formats.  */
      if (gmon_io_write_vma (ofp, histograms->lowpc)
          || gmon_io_write_vma (ofp, histograms->highpc)
          || gmon_io_write_32 (ofp, histograms->num_bins
                               * sizeof (UNIT) + hdrsize))
        {
          perror (filename);
          done (1);
        }
 
      /* Write out the 4.4BSD header bits, if that's what we're using.  */
      if (file_format == FF_BSD44
          || hz != hertz())
        {
          if (gmon_io_write_32 (ofp, GMONVERSION)
              || gmon_io_write_32 (ofp, (unsigned int) hz))
            {
              perror (filename);
              done (1);
            }
        }
 
      /* Now write out any necessary padding after the meaningful
         header bits.  */
      if (padsize != 0
          && fwrite (pad, 1, padsize, ofp) != padsize)
        {
          perror (filename);
          done (1);
        }
 
      /* Dump the samples.  */
      for (i = 0; i < histograms->num_bins; ++i)
        {
          bfd_put_16 (core_bfd, (bfd_vma) histograms->sample[i],
                      (bfd_byte *) &raw_bin_count[0]);
          if (fwrite (&raw_bin_count[0], sizeof (raw_bin_count), 1, ofp) != 1)
            {
              perror (filename);
              done (1);
            }
        }
 
      /* Dump the normalized raw arc information.  */
      for (sym = symtab.base; sym < symtab.limit; ++sym)
        {
          for (arc = sym->cg.children; arc; arc = arc->next_child)
            {
              if (gmon_write_raw_arc (ofp, arc->parent->addr,
                                      arc->child->addr, arc->count))
                {
                  perror (filename);
                  done (1);
                }
              DBG (SAMPLEDEBUG,
                   printf ("[dumpsum] frompc 0x%lx selfpc 0x%lx count %lu\n",
                           (unsigned long) arc->parent->addr,
                           (unsigned long) arc->child->addr, arc->count));
            }
        }
 
      fclose (ofp);
    }
  else
    {
      fprintf (stderr, _("%s: don't know how to deal with file format %d\n"),
               whoami, file_format);
      done (1);
    }
}

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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [gprof/] [gmon_io.c] - Blame information for rev 146

Line No.	Rev	Author	Line
1	25	khays	`/* gmon_io.c - Input and output from/to gmon.out files.`
2
3			`Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008`
4			`Free Software Foundation, Inc.`
5
6			`This file is part of GNU Binutils.`
7
8			`This program is free software; you can redistribute it and/or modify`
9			`it under the terms of the GNU General Public License as published by`
10			`the Free Software Foundation; either version 3 of the License, or`
11			`(at your option) any later version.`
12
13			`This program is distributed in the hope that it will be useful,`
14			`but WITHOUT ANY WARRANTY; without even the implied warranty of`
15			`MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the`
16			`GNU General Public License for more details.`
17
18			`You should have received a copy of the GNU General Public License`
19			`along with this program; if not, write to the Free Software`
20			`Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA`
21			`02110-1301, USA. */`
22
23			`#include "gprof.h"`
24			`#include "binary-io.h"`
25			`#include "search_list.h"`
26			`#include "source.h"`
27			`#include "symtab.h"`
28			`#include "cg_arcs.h"`
29			`#include "basic_blocks.h"`
30			`#include "corefile.h"`
31			`#include "call_graph.h"`
32			`#include "gmon_io.h"`
33			`#include "gmon_out.h"`
34			`#include "gmon.h" /* Fetch header for old format. */`
35			`#include "hertz.h"`
36			`#include "hist.h"`
37			`#include "libiberty.h"`
38
39			`enum gmon_ptr_size {`
40			`ptr_32bit,`
41			`ptr_64bit`
42			`};`
43
44			`enum gmon_ptr_signedness {`
45			`ptr_signed,`
46			`ptr_unsigned`
47			`};`
48
49			`static enum gmon_ptr_size gmon_get_ptr_size (void);`
50			`static enum gmon_ptr_signedness gmon_get_ptr_signedness (void);`
51
52			`#ifdef BFD_HOST_U_64_BIT`
53			`static int gmon_io_read_64 (FILE , BFD_HOST_U_64_BIT );`
54			`static int gmon_io_write_64 (FILE *, BFD_HOST_U_64_BIT);`
55			`#endif`
56			`static int gmon_read_raw_arc`
57			`(FILE , bfd_vma , bfd_vma , unsigned long );`
58			`static int gmon_write_raw_arc`
59			`(FILE *, bfd_vma, bfd_vma, unsigned long);`
60
61			`int gmon_input = 0;`
62			`int gmon_file_version = 0; /* 0 == old (non-versioned) file format. */`
63
64			`static enum gmon_ptr_size`
65			`gmon_get_ptr_size ()`
66			`{`
67			`int size;`
68
69			`/* Pick best size for pointers. Start with the ELF size, and if not`
70			`elf go with the architecture's address size. */`
71			`size = bfd_get_arch_size (core_bfd);`
72			`if (size == -1)`
73			`size = bfd_arch_bits_per_address (core_bfd);`
74
75			`switch (size)`
76			`{`
77			`case 32:`
78			`return ptr_32bit;`
79
80			`case 64:`
81			`return ptr_64bit;`
82
83			`default:`
84			`fprintf (stderr, _("%s: address size has unexpected value of %u\n"),`
85			`whoami, size);`
86			`done (1);`
87			`}`
88			`}`
89
90			`static enum gmon_ptr_signedness`
91			`gmon_get_ptr_signedness ()`
92			`{`
93			`int sext;`
94
95			`/* Figure out whether to sign extend. If BFD doesn't know, assume no. */`
96			`sext = bfd_get_sign_extend_vma (core_bfd);`
97			`if (sext == -1)`
98			`return ptr_unsigned;`
99			`return (sext ? ptr_signed : ptr_unsigned);`
100			`}`
101
102			`int`
103			`gmon_io_read_32 (FILE ifp, unsigned int valp)`
104			`{`
105			`char buf[4];`
106
107			`if (fread (buf, 1, 4, ifp) != 4)`
108			`return 1;`
109			`*valp = bfd_get_32 (core_bfd, buf);`
110			`return 0;`
111			`}`
112
113			`#ifdef BFD_HOST_U_64_BIT`
114			`static int`
115			`gmon_io_read_64 (FILE ifp, BFD_HOST_U_64_BIT valp)`
116			`{`
117			`char buf[8];`
118
119			`if (fread (buf, 1, 8, ifp) != 8)`
120			`return 1;`
121			`*valp = bfd_get_64 (core_bfd, buf);`
122			`return 0;`
123			`}`
124			`#endif`
125
126			`int`
127			`gmon_io_read_vma (FILE ifp, bfd_vma valp)`
128			`{`
129			`unsigned int val32;`
130			`#ifdef BFD_HOST_U_64_BIT`
131			`BFD_HOST_U_64_BIT val64;`
132			`#endif`
133
134			`switch (gmon_get_ptr_size ())`
135			`{`
136			`case ptr_32bit:`
137			`if (gmon_io_read_32 (ifp, &val32))`
138			`return 1;`
139			`if (gmon_get_ptr_signedness () == ptr_signed)`
140			`*valp = (int) val32;`
141			`else`
142			`*valp = val32;`
143			`break;`
144
145			`#ifdef BFD_HOST_U_64_BIT`
146			`case ptr_64bit:`
147			`if (gmon_io_read_64 (ifp, &val64))`
148			`return 1;`
149			`#ifdef BFD_HOST_64_BIT`
150			`if (gmon_get_ptr_signedness () == ptr_signed)`
151			`*valp = (BFD_HOST_64_BIT) val64;`
152			`else`
153			`#endif`
154			`*valp = val64;`
155			`break;`
156			`#endif`
157			`}`
158			`return 0;`
159			`}`
160
161			`int`
162			`gmon_io_read (FILE ifp, char buf, size_t n)`
163			`{`
164			`if (fread (buf, 1, n, ifp) != n)`
165			`return 1;`
166			`return 0;`
167			`}`
168
169			`int`
170			`gmon_io_write_32 (FILE *ofp, unsigned int val)`
171			`{`
172			`char buf[4];`
173
174			`bfd_put_32 (core_bfd, (bfd_vma) val, buf);`
175			`if (fwrite (buf, 1, 4, ofp) != 4)`
176			`return 1;`
177			`return 0;`
178			`}`
179
180			`#ifdef BFD_HOST_U_64_BIT`
181			`static int`
182			`gmon_io_write_64 (FILE *ofp, BFD_HOST_U_64_BIT val)`
183			`{`
184			`char buf[8];`
185
186			`bfd_put_64 (core_bfd, (bfd_vma) val, buf);`
187			`if (fwrite (buf, 1, 8, ofp) != 8)`
188			`return 1;`
189			`return 0;`
190			`}`
191			`#endif`
192
193			`int`
194			`gmon_io_write_vma (FILE *ofp, bfd_vma val)`
195			`{`
196
197			`switch (gmon_get_ptr_size ())`
198			`{`
199			`case ptr_32bit:`
200			`if (gmon_io_write_32 (ofp, (unsigned int) val))`
201			`return 1;`
202			`break;`
203
204			`#ifdef BFD_HOST_U_64_BIT`
205			`case ptr_64bit:`
206			`if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) val))`
207			`return 1;`
208			`break;`
209			`#endif`
210			`}`
211			`return 0;`
212			`}`
213
214			`int`
215			`gmon_io_write_8 (FILE *ofp, unsigned int val)`
216			`{`
217			`char buf[1];`
218
219			`bfd_put_8 (core_bfd, val, buf);`
220			`if (fwrite (buf, 1, 1, ofp) != 1)`
221			`return 1;`
222			`return 0;`
223			`}`
224
225			`int`
226			`gmon_io_write (FILE ofp, char buf, size_t n)`
227			`{`
228			`if (fwrite (buf, 1, n, ofp) != n)`
229			`return 1;`
230			`return 0;`
231			`}`
232
233			`static int`
234			`gmon_read_raw_arc (FILE ifp, bfd_vma fpc, bfd_vma spc, unsigned long cnt)`
235			`{`
236			`#ifdef BFD_HOST_U_64_BIT`
237			`BFD_HOST_U_64_BIT cnt64;`
238			`#endif`
239			`unsigned int cnt32;`
240
241			`if (gmon_io_read_vma (ifp, fpc)`
242			`\|\| gmon_io_read_vma (ifp, spc))`
243			`return 1;`
244
245			`switch (gmon_get_ptr_size ())`
246			`{`
247			`case ptr_32bit:`
248			`if (gmon_io_read_32 (ifp, &cnt32))`
249			`return 1;`
250			`*cnt = cnt32;`
251			`break;`
252
253			`#ifdef BFD_HOST_U_64_BIT`
254			`case ptr_64bit:`
255			`if (gmon_io_read_64 (ifp, &cnt64))`
256			`return 1;`
257			`*cnt = cnt64;`
258			`break;`
259			`#endif`
260
261			`default:`
262			`return 1;`
263			`}`
264			`return 0;`
265			`}`
266
267			`static int`
268			`gmon_write_raw_arc (FILE *ofp, bfd_vma fpc, bfd_vma spc, unsigned long cnt)`
269			`{`
270
271			`if (gmon_io_write_vma (ofp, fpc)`
272			`\|\| gmon_io_write_vma (ofp, spc))`
273			`return 1;`
274
275			`switch (gmon_get_ptr_size ())`
276			`{`
277			`case ptr_32bit:`
278			`if (gmon_io_write_32 (ofp, (unsigned int) cnt))`
279			`return 1;`
280			`break;`
281
282			`#ifdef BFD_HOST_U_64_BIT`
283			`case ptr_64bit:`
284			`if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) cnt))`
285			`return 1;`
286			`break;`
287			`#endif`
288			`}`
289			`return 0;`
290			`}`
291
292			`void`
293			`gmon_out_read (const char *filename)`
294			`{`
295			`FILE *ifp;`
296			`struct gmon_hdr ghdr;`
297			`unsigned char tag;`
298			`int nhist = 0, narcs = 0, nbbs = 0;`
299
300			`/* Open gmon.out file. */`
301			`if (strcmp (filename, "-") == 0)`
302			`{`
303			`ifp = stdin;`
304			`SET_BINARY (fileno (stdin));`
305			`}`
306			`else`
307			`{`
308			`ifp = fopen (filename, FOPEN_RB);`
309
310			`if (!ifp)`
311			`{`
312			`perror (filename);`
313			`done (1);`
314			`}`
315			`}`
316
317			`if (fread (&ghdr, sizeof (struct gmon_hdr), 1, ifp) != 1)`
318			`{`
319			`fprintf (stderr, _("%s: file too short to be a gmon file\n"),`
320			`filename);`
321			`done (1);`
322			`}`
323
324			`if ((file_format == FF_MAGIC)`
325			`\|\| (file_format == FF_AUTO && !strncmp (&ghdr.cookie[0], GMON_MAGIC, 4)))`
326			`{`
327			`if (file_format == FF_MAGIC && strncmp (&ghdr.cookie[0], GMON_MAGIC, 4))`
328			`{`
329			fprintf (stderr, _("%s: file `%s' has bad magic cookie\n"),
330			`whoami, filename);`
331			`done (1);`
332			`}`
333
334			`/* Right magic, so it's probably really a new gmon.out file. */`
335			`gmon_file_version = bfd_get_32 (core_bfd, (bfd_byte *) ghdr.version);`
336
337			`if (gmon_file_version != GMON_VERSION && gmon_file_version != 0)`
338			`{`
339			`fprintf (stderr,`
340			_("%s: file `%s' has unsupported version %d\n"),
341			`whoami, filename, gmon_file_version);`
342			`done (1);`
343			`}`
344
345			`/* Read in all the records. */`
346			`while (fread (&tag, sizeof (tag), 1, ifp) == 1)`
347			`{`
348			`switch (tag)`
349			`{`
350			`case GMON_TAG_TIME_HIST:`
351			`++nhist;`
352			`gmon_input \|= INPUT_HISTOGRAM;`
353			`hist_read_rec (ifp, filename);`
354			`break;`
355
356			`case GMON_TAG_CG_ARC:`
357			`++narcs;`
358			`gmon_input \|= INPUT_CALL_GRAPH;`
359			`cg_read_rec (ifp, filename);`
360			`break;`
361
362			`case GMON_TAG_BB_COUNT:`
363			`++nbbs;`
364			`gmon_input \|= INPUT_BB_COUNTS;`
365			`bb_read_rec (ifp, filename);`
366			`break;`
367
368			`default:`
369			`fprintf (stderr,`
370			`_("%s: %s: found bad tag %d (file corrupted?)\n"),`
371			`whoami, filename, tag);`
372			`done (1);`
373			`}`
374			`}`
375			`}`
376			`else if (file_format == FF_AUTO`
377			`\|\| file_format == FF_BSD`
378			`\|\| file_format == FF_BSD44)`
379			`{`
380			`struct hdr`
381			`{`
382			`bfd_vma low_pc;`
383			`bfd_vma high_pc;`
384			`unsigned int ncnt;`
385			`};`
386			`unsigned int i;`
387			`int samp_bytes, header_size = 0;`
388			`unsigned long count;`
389			`bfd_vma from_pc, self_pc;`
390			`UNIT raw_bin_count;`
391			`struct hdr tmp;`
392			`unsigned int version;`
393			`unsigned int hist_num_bins;`
394
395			`/* Information from a gmon.out file is in two parts: an array of`
396			`sampling hits within pc ranges, and the arcs. */`
397			`gmon_input = INPUT_HISTOGRAM \| INPUT_CALL_GRAPH;`
398
399			`/* This fseek() ought to work even on stdin as long as it's`
400			`not an interactive device (heck, is there anybody who would`
401			`want to type in a gmon.out at the terminal?). */`
402			`if (fseek (ifp, 0, SEEK_SET) < 0)`
403			`{`
404			`perror (filename);`
405			`done (1);`
406			`}`
407
408			`/* The beginning of the old BSD header and the 4.4BSD header`
409			`are the same: lowpc, highpc, ncnt */`
410			`if (gmon_io_read_vma (ifp, &tmp.low_pc)`
411			`\|\| gmon_io_read_vma (ifp, &tmp.high_pc)`
412			`\|\| gmon_io_read_32 (ifp, &tmp.ncnt))`
413			`{`
414			`bad_gmon_file:`
415			`fprintf (stderr, _("%s: file too short to be a gmon file\n"),`
416			`filename);`
417			`done (1);`
418			`}`
419
420			`/* Check to see if this a 4.4BSD-style header. */`
421			`if (gmon_io_read_32 (ifp, &version))`
422			`goto bad_gmon_file;`
423
424			`if (version == GMONVERSION)`
425			`{`
426			`unsigned int profrate;`
427
428			`/* 4.4BSD format header. */`
429			`if (gmon_io_read_32 (ifp, &profrate))`
430			`goto bad_gmon_file;`
431
432			`if (!histograms)`
433			`hz = profrate;`
434			`else if (hz != (int) profrate)`
435			`{`
436			`fprintf (stderr,`
437			`_("%s: profiling rate incompatible with first gmon file\n"),`
438			`filename);`
439			`done (1);`
440			`}`
441
442			`switch (gmon_get_ptr_size ())`
443			`{`
444			`case ptr_32bit:`
445			`header_size = GMON_HDRSIZE_BSD44_32;`
446			`break;`
447
448			`case ptr_64bit:`
449			`header_size = GMON_HDRSIZE_BSD44_64;`
450			`break;`
451			`}`
452			`}`
453			`else`
454			`{`
455			`/* Old style BSD format. */`
456			`if (file_format == FF_BSD44)`
457			`{`
458			fprintf (stderr, _("%s: file `%s' has bad magic cookie\n"),
459			`whoami, filename);`
460			`done (1);`
461			`}`
462
463			`switch (gmon_get_ptr_size ())`
464			`{`
465			`case ptr_32bit:`
466			`header_size = GMON_HDRSIZE_OLDBSD_32;`
467			`break;`
468
469			`case ptr_64bit:`
470			`header_size = GMON_HDRSIZE_OLDBSD_64;`
471			`break;`
472			`}`
473			`}`
474
475			`/* Position the file to after the header. */`
476			`if (fseek (ifp, header_size, SEEK_SET) < 0)`
477			`{`
478			`perror (filename);`
479			`done (1);`
480			`}`
481
482			`samp_bytes = tmp.ncnt - header_size;`
483			`hist_num_bins = samp_bytes / sizeof (UNIT);`
484			`if (histograms && (tmp.low_pc != histograms->lowpc`
485			`\|\| tmp.high_pc != histograms->highpc`
486			`\|\| (hist_num_bins != histograms->num_bins)))`
487			`{`
488			`fprintf (stderr, _("%s: incompatible with first gmon file\n"),`
489			`filename);`
490			`done (1);`
491			`}`
492
493			`if (!histograms)`
494			`{`
495			`num_histograms = 1;`
496			`histograms = (struct histogram *) xmalloc (sizeof (struct histogram));`
497			`histograms->lowpc = tmp.low_pc;`
498			`histograms->highpc = tmp.high_pc;`
499			`histograms->num_bins = hist_num_bins;`
500			`hist_scale = (double)((tmp.high_pc - tmp.low_pc) / sizeof (UNIT))`
501			`/ hist_num_bins;`
502			`histograms->sample = (int ) xmalloc (hist_num_bins sizeof (int));`
503			`memset (histograms->sample, 0,`
504			`hist_num_bins * sizeof (int));`
505			`}`
506
507			`DBG (SAMPLEDEBUG,`
508			`printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx ncnt %d\n",`
509			`(unsigned long) tmp.low_pc, (unsigned long) tmp.high_pc,`
510			`tmp.ncnt);`
511			`printf ("[gmon_out_read] samp_bytes %d hist_num_bins %d\n",`
512			`samp_bytes, hist_num_bins));`
513
514			`/* Make sure that we have sensible values. */`
515			`if (samp_bytes < 0 \|\| histograms->lowpc > histograms->highpc)`
516			`{`
517			`fprintf (stderr,`
518			`_("%s: file '%s' does not appear to be in gmon.out format\n"),`
519			`whoami, filename);`
520			`done (1);`
521			`}`
522
523			`if (hist_num_bins)`
524			`++nhist;`
525
526			`for (i = 0; i < hist_num_bins; ++i)`
527			`{`
528			`if (fread (raw_bin_count, sizeof (raw_bin_count), 1, ifp) != 1)`
529			`{`
530			`fprintf (stderr,`
531			`_("%s: unexpected EOF after reading %d/%d bins\n"),`
532			`whoami, --i, hist_num_bins);`
533			`done (1);`
534			`}`
535
536			`histograms->sample[i]`
537			`+= bfd_get_16 (core_bfd, (bfd_byte *) raw_bin_count);`
538			`}`
539
540			`/* The rest of the file consists of a bunch of`
541			`<from,self,count> tuples. */`
542			`while (gmon_read_raw_arc (ifp, &from_pc, &self_pc, &count) == 0)`
543			`{`
544			`++narcs;`
545
546			`DBG (SAMPLEDEBUG,`
547			`printf ("[gmon_out_read] frompc 0x%lx selfpc 0x%lx count %lu\n",`
548			`(unsigned long) from_pc, (unsigned long) self_pc, count));`
549
550			`/* Add this arc. */`
551			`cg_tally (from_pc, self_pc, count);`
552			`}`
553
554			`if (hz == HZ_WRONG)`
555			`{`
556			`/* How many ticks per second? If we can't tell, report`
557			`time in ticks. */`
558			`hz = hertz ();`
559
560			`if (hz == HZ_WRONG)`
561			`{`
562			`hz = 1;`
563			`fprintf (stderr, _("time is in ticks, not seconds\n"));`
564			`}`
565			`}`
566			`}`
567			`else`
568			`{`
569			`fprintf (stderr, _("%s: don't know how to deal with file format %d\n"),`
570			`whoami, file_format);`
571			`done (1);`
572			`}`
573
574			`if (ifp != stdin)`
575			`fclose (ifp);`
576
577			`if (output_style & STYLE_GMON_INFO)`
578			`{`
579			printf (_("File `%s' (version %d) contains:\n"),
580			`filename, gmon_file_version);`
581			`printf (nhist == 1 ?`
582			`_("\t%d histogram record\n") :`
583			`_("\t%d histogram records\n"), nhist);`
584			`printf (narcs == 1 ?`
585			`_("\t%d call-graph record\n") :`
586			`_("\t%d call-graph records\n"), narcs);`
587			`printf (nbbs == 1 ?`
588			`_("\t%d basic-block count record\n") :`
589			`_("\t%d basic-block count records\n"), nbbs);`
590			`first_output = FALSE;`
591			`}`
592			`}`
593
594
595			`void`
596			`gmon_out_write (const char *filename)`
597			`{`
598			`FILE *ofp;`
599			`struct gmon_hdr ghdr;`
600
601			`ofp = fopen (filename, FOPEN_WB);`
602			`if (!ofp)`
603			`{`
604			`perror (filename);`
605			`done (1);`
606			`}`
607
608			`if (file_format == FF_AUTO \|\| file_format == FF_MAGIC)`
609			`{`
610			`/* Write gmon header. */`
611
612			`memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);`
613			`bfd_put_32 (core_bfd, (bfd_vma) GMON_VERSION, (bfd_byte *) ghdr.version);`
614
615			`if (fwrite (&ghdr, sizeof (ghdr), 1, ofp) != 1)`
616			`{`
617			`perror (filename);`
618			`done (1);`
619			`}`
620
621			`/* Write execution time histogram if we have one. */`
622			`if (gmon_input & INPUT_HISTOGRAM)`
623			`hist_write_hist (ofp, filename);`
624
625			`/* Write call graph arcs if we have any. */`
626			`if (gmon_input & INPUT_CALL_GRAPH)`
627			`cg_write_arcs (ofp, filename);`
628
629			`/* Write basic-block info if we have it. */`
630			`if (gmon_input & INPUT_BB_COUNTS)`
631			`bb_write_blocks (ofp, filename);`
632			`}`
633			`else if (file_format == FF_BSD \|\| file_format == FF_BSD44)`
634			`{`
635			`UNIT raw_bin_count;`
636			`unsigned int i, hdrsize;`
637			`unsigned padsize;`
638			`char pad[3*4];`
639			`Arc *arc;`
640			`Sym *sym;`
641
642			`memset (pad, 0, sizeof (pad));`
643
644			`hdrsize = 0;`
645			`/* Decide how large the header will be. Use the 4.4BSD format`
646			`header if explicitly specified, or if the profiling rate is`
647			`non-standard. Otherwise, use the old BSD format. */`
648			`if (file_format == FF_BSD44`
649			`\|\| hz != hertz())`
650			`{`
651			`padsize = 3*4;`
652			`switch (gmon_get_ptr_size ())`
653			`{`
654			`case ptr_32bit:`
655			`hdrsize = GMON_HDRSIZE_BSD44_32;`
656			`break;`
657
658			`case ptr_64bit:`
659			`hdrsize = GMON_HDRSIZE_BSD44_64;`
660			`break;`
661			`}`
662			`}`
663			`else`
664			`{`
665			`padsize = 0;`
666			`switch (gmon_get_ptr_size ())`
667			`{`
668			`case ptr_32bit:`
669			`hdrsize = GMON_HDRSIZE_OLDBSD_32;`
670			`break;`
671
672			`case ptr_64bit:`
673			`hdrsize = GMON_HDRSIZE_OLDBSD_64;`
674			`/* FIXME: Checking host compiler defines here means that we can't`
675			`use a cross gprof alpha OSF. */`
676			`#if defined(__alpha__) && defined (__osf__)`
677			`padsize = 4;`
678			`#endif`
679			`break;`
680			`}`
681			`}`
682
683			`/* Write the parts of the headers that are common to both the`
684			`old BSD and 4.4BSD formats. */`
685			`if (gmon_io_write_vma (ofp, histograms->lowpc)`
686			`\|\| gmon_io_write_vma (ofp, histograms->highpc)`
687			`\|\| gmon_io_write_32 (ofp, histograms->num_bins`
688			`* sizeof (UNIT) + hdrsize))`
689			`{`
690			`perror (filename);`
691			`done (1);`
692			`}`
693
694			`/* Write out the 4.4BSD header bits, if that's what we're using. */`
695			`if (file_format == FF_BSD44`
696			`\|\| hz != hertz())`
697			`{`
698			`if (gmon_io_write_32 (ofp, GMONVERSION)`
699			`\|\| gmon_io_write_32 (ofp, (unsigned int) hz))`
700			`{`
701			`perror (filename);`
702			`done (1);`
703			`}`
704			`}`
705
706			`/* Now write out any necessary padding after the meaningful`
707			`header bits. */`
708			`if (padsize != 0`
709			`&& fwrite (pad, 1, padsize, ofp) != padsize)`
710			`{`
711			`perror (filename);`
712			`done (1);`
713			`}`
714
715			`/* Dump the samples. */`
716			`for (i = 0; i < histograms->num_bins; ++i)`
717			`{`
718			`bfd_put_16 (core_bfd, (bfd_vma) histograms->sample[i],`
719			`(bfd_byte *) &raw_bin_count[0]);`
720			`if (fwrite (&raw_bin_count[0], sizeof (raw_bin_count), 1, ofp) != 1)`
721			`{`
722			`perror (filename);`
723			`done (1);`
724			`}`
725			`}`
726
727			`/* Dump the normalized raw arc information. */`
728			`for (sym = symtab.base; sym < symtab.limit; ++sym)`
729			`{`
730			`for (arc = sym->cg.children; arc; arc = arc->next_child)`
731			`{`
732			`if (gmon_write_raw_arc (ofp, arc->parent->addr,`
733			`arc->child->addr, arc->count))`
734			`{`
735			`perror (filename);`
736			`done (1);`
737			`}`
738			`DBG (SAMPLEDEBUG,`
739			`printf ("[dumpsum] frompc 0x%lx selfpc 0x%lx count %lu\n",`
740			`(unsigned long) arc->parent->addr,`
741			`(unsigned long) arc->child->addr, arc->count));`
742			`}`
743			`}`
744
745			`fclose (ofp);`
746			`}`
747			`else`
748			`{`
749			`fprintf (stderr, _("%s: don't know how to deal with file format %d\n"),`
750			`whoami, file_format);`
751			`done (1);`
752			`}`
753			`}`