-/*
- * Input and output from/to gmon.out files.
- */
+/* gmon_io.c - Input and output from/to gmon.out files.
+
+ Copyright (C) 2000 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 2 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., 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
+\f
#include "cg_arcs.h"
#include "basic_blocks.h"
#include "bfd.h"
#include "call_graph.h"
#include "gmon_io.h"
#include "gmon_out.h"
-#include "gmon.h" /* fetch header for old format */
+#include "gmon.h" /* Fetch header for old format. */
#include "gprof.h"
#include "hertz.h"
#include "hist.h"
#include "libiberty.h"
int gmon_input = 0;
-int gmon_file_version = 0; /* 0 == old (non-versioned) file format */
+int gmon_file_version = 0; /* 0 == old (non-versioned) file format. */
+
+/* This probably ought to be in libbfd. */
-/*
- * This probably ought to be in libbfd.
- */
bfd_vma
DEFUN (get_vma, (abfd, addr), bfd * abfd AND bfd_byte * addr)
{
}
-/*
- * This probably ought to be in libbfd.
- */
+/* This probably ought to be in libbfd. */
+
void
DEFUN (put_vma, (abfd, val, addr), bfd * abfd AND bfd_vma val AND bfd_byte * addr)
{
unsigned char tag;
int nhist = 0, narcs = 0, nbbs = 0;
- /* open gmon.out file: */
-
+ /* Open gmon.out file. */
if (strcmp (filename, "-") == 0)
{
ifp = stdin;
+#ifdef SET_BINARY
+ SET_BINARY (fileno (stdin));
+#endif
}
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"),
done (1);
}
- /* right magic, so it's probably really a new gmon.out file */
-
+ /* 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,
done (1);
}
- /* read in all the records: */
+ /* Read in all the records. */
while (fread (&tag, sizeof (tag), 1, ifp) == 1)
{
switch (tag)
UNIT raw_bin_count;
struct hdr tmp;
- /*
- * Information from a gmon.out file is in two parts: an array of
- * sampling hits within pc ranges, and the arcs.
- */
+ /* 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?).
- */
+ /* 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);
}
+
if (fread (&raw, 1, sizeof (struct raw_phdr), ifp)
!= sizeof (struct raw_phdr))
{
filename);
done (1);
}
+
tmp.low_pc = get_vma (core_bfd, (bfd_byte *) &raw.low_pc[0]);
tmp.high_pc = get_vma (core_bfd, (bfd_byte *) &raw.high_pc[0]);
tmp.ncnt = bfd_get_32 (core_bfd, (bfd_byte *) &raw.ncnt[0]);
int profrate;
/* 4.4BSD format header. */
-
profrate = bfd_get_32 (core_bfd, (bfd_byte *) &raw.profrate[0]);
+
if (!s_highpc)
hz = profrate;
else if (hz != profrate)
}
else
{
- /* old style BSD format. */
+ /* Old style BSD format. */
if (file_format == FF_BSD44)
{
fprintf (stderr, _("%s: file `%s' has bad magic cookie\n"),
filename);
done (1);
}
+
h = tmp;
s_lowpc = (bfd_vma) h.low_pc;
s_highpc = (bfd_vma) h.high_pc;
highpc = (bfd_vma) h.high_pc / sizeof (UNIT);
samp_bytes = h.ncnt - header_size;
hist_num_bins = samp_bytes / sizeof (UNIT);
+
DBG (SAMPLEDEBUG,
printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx ncnt %d\n",
(unsigned long) h.low_pc, (unsigned long) h.high_pc,
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 || lowpc > 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;
- }
+ ++nhist;
if (!hist_sample)
{
hist_sample =
(int *) xmalloc (hist_num_bins * sizeof (hist_sample[0]));
+
memset (hist_sample, 0, hist_num_bins * sizeof (hist_sample[0]));
}
whoami, --i, hist_num_bins);
done (1);
}
+
hist_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:
- */
+ /* The rest of the file consists of a bunch of
+ <from,self,count> tuples. */
while (fread (&raw_arc, sizeof (raw_arc), 1, ifp) == 1)
{
++narcs;
from_pc = get_vma (core_bfd, (bfd_byte *) raw_arc.from_pc);
self_pc = get_vma (core_bfd, (bfd_byte *) raw_arc.self_pc);
count = bfd_get_32 (core_bfd, (bfd_byte *) raw_arc.count);
+
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: */
+
+ /* Add this arc. */
cg_tally (from_pc, self_pc, count);
}
+
fclose (ifp);
if (hz == HZ_WRONG)
{
- /*
- * How many ticks per second? If we can't tell, report
- * time in ticks.
- */
+ /* How many ticks per second? If we can't tell, report
+ time in ticks. */
hz = hertz ();
+
if (hz == HZ_WRONG)
{
hz = 1;
if (file_format == FF_AUTO || file_format == FF_MAGIC)
{
- /* write gmon header: */
+ /* Write gmon header. */
memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
bfd_put_32 (core_bfd, 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: */
+ /* Write execution time histogram if we have one. */
if (gmon_input & INPUT_HISTOGRAM)
- {
- hist_write_hist (ofp, filename);
- }
+ hist_write_hist (ofp, filename);
- /* write call graph arcs if we have any: */
+ /* Write call graph arcs if we have any. */
if (gmon_input & INPUT_CALL_GRAPH)
- {
- cg_write_arcs (ofp, filename);
- }
+ cg_write_arcs (ofp, filename);
- /* write basic-block info if we have it: */
+ /* Write basic-block info if we have it. */
if (gmon_input & INPUT_BB_COUNTS)
- {
- bb_write_blocks (ofp, filename);
- }
+ bb_write_blocks (ofp, filename);
}
else if (file_format == FF_BSD || file_format == FF_BSD44)
{
}
}
- /* dump the samples: */
-
+ /* Dump the samples. */
for (i = 0; i < hist_num_bins; ++i)
{
bfd_put_16 (core_bfd, hist_sample[i], (bfd_byte *) & raw_bin_count[0]);
}
}
- /* dump the normalized raw arc information: */
-
+ /* Dump the normalized raw arc information. */
for (sym = symtab.base; sym < symtab.limit; ++sym)
{
for (arc = sym->cg.children; arc; arc = arc->next_child)
(unsigned long) arc->child->addr, arc->count));
}
}
+
fclose (ofp);
}
else
projects / deliverable / binutils-gdb.git / blobdiff