binutils-gdb/gprof/gprof.c

648 lines
16 KiB
C

/*
* Copyright (c) 1983, 1993, 1998, 2001, 2002
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "gprof.h"
#include "libiberty.h"
#include "bfdver.h"
#include "search_list.h"
#include "source.h"
#include "symtab.h"
#include "basic_blocks.h"
#include "call_graph.h"
#include "cg_arcs.h"
#include "cg_print.h"
#include "corefile.h"
#include "gmon_io.h"
#include "hertz.h"
#include "hist.h"
#include "sym_ids.h"
#include "demangle.h"
#include "getopt.h"
static void usage (FILE *, int) ATTRIBUTE_NORETURN;
const char * whoami;
const char * function_mapping_file;
static const char * external_symbol_table;
const char * a_out_name = A_OUTNAME;
long hz = HZ_WRONG;
/*
* Default options values:
*/
int debug_level = 0;
int output_style = 0;
int output_width = 80;
bfd_boolean bsd_style_output = FALSE;
bfd_boolean demangle = TRUE;
bfd_boolean ignore_direct_calls = FALSE;
bfd_boolean ignore_static_funcs = FALSE;
bfd_boolean ignore_zeros = TRUE;
bfd_boolean line_granularity = FALSE;
bfd_boolean print_descriptions = TRUE;
bfd_boolean print_path = FALSE;
bfd_boolean ignore_non_functions = FALSE;
bfd_boolean inline_file_names = FALSE;
File_Format file_format = FF_AUTO;
bfd_boolean first_output = TRUE;
char copyright[] =
"@(#) Copyright (c) 1983 Regents of the University of California.\n\
All rights reserved.\n";
static char *gmon_name = GMONNAME; /* profile filename */
/*
* Functions that get excluded by default:
*/
static char *default_excluded_list[] =
{
"_gprof_mcount", "mcount", "_mcount", "__mcount", "__mcount_internal",
"__mcleanup",
0
};
/* Codes used for the long options with no short synonyms. 150 isn't
special; it's just an arbitrary non-ASCII char value. */
#define OPTION_DEMANGLE (150)
#define OPTION_NO_DEMANGLE (OPTION_DEMANGLE + 1)
#define OPTION_INLINE_FILE_NAMES (OPTION_DEMANGLE + 2)
static struct option long_options[] =
{
{"line", no_argument, 0, 'l'},
{"no-static", no_argument, 0, 'a'},
{"ignore-non-functions", no_argument, 0, 'D'},
{"external-symbol-table", required_argument, 0, 'S'},
/* output styles: */
{"annotated-source", optional_argument, 0, 'A'},
{"no-annotated-source", optional_argument, 0, 'J'},
{"flat-profile", optional_argument, 0, 'p'},
{"no-flat-profile", optional_argument, 0, 'P'},
{"graph", optional_argument, 0, 'q'},
{"no-graph", optional_argument, 0, 'Q'},
{"exec-counts", optional_argument, 0, 'C'},
{"no-exec-counts", optional_argument, 0, 'Z'},
{"function-ordering", no_argument, 0, 'r'},
{"file-ordering", required_argument, 0, 'R'},
{"file-info", no_argument, 0, 'i'},
{"sum", no_argument, 0, 's'},
/* various options to affect output: */
{"all-lines", no_argument, 0, 'x'},
{"demangle", optional_argument, 0, OPTION_DEMANGLE},
{"no-demangle", no_argument, 0, OPTION_NO_DEMANGLE},
{"directory-path", required_argument, 0, 'I'},
{"display-unused-functions", no_argument, 0, 'z'},
{"inline-file-names", no_argument, 0, OPTION_INLINE_FILE_NAMES},
{"min-count", required_argument, 0, 'm'},
{"print-path", no_argument, 0, 'L'},
{"separate-files", no_argument, 0, 'y'},
{"static-call-graph", no_argument, 0, 'c'},
{"table-length", required_argument, 0, 't'},
{"time", required_argument, 0, 'n'},
{"no-time", required_argument, 0, 'N'},
{"width", required_argument, 0, 'w'},
/*
* These are for backwards-compatibility only. Their functionality
* is provided by the output style options already:
*/
{"", required_argument, 0, 'e'},
{"", required_argument, 0, 'E'},
{"", required_argument, 0, 'f'},
{"", required_argument, 0, 'F'},
{"", required_argument, 0, 'k'},
/* miscellaneous: */
{"brief", no_argument, 0, 'b'},
{"debug", optional_argument, 0, 'd'},
{"help", no_argument, 0, 'h'},
{"file-format", required_argument, 0, 'O'},
{"traditional", no_argument, 0, 'T'},
{"version", no_argument, 0, 'v'},
{0, no_argument, 0, 0}
};
static void
usage (FILE *stream, int status)
{
fprintf (stream, _("\
Usage: %s [-[abcDhilLsTvwxyz]] [-[ACeEfFJnNOpPqSQZ][name]] [-I dirs]\n\
[-d[num]] [-k from/to] [-m min-count] [-t table-length]\n\
[--[no-]annotated-source[=name]] [--[no-]exec-counts[=name]]\n\
[--[no-]flat-profile[=name]] [--[no-]graph[=name]]\n\
[--[no-]time=name] [--all-lines] [--brief] [--debug[=level]]\n\
[--function-ordering] [--file-ordering] [--inline-file-names]\n\
[--directory-path=dirs] [--display-unused-functions]\n\
[--file-format=name] [--file-info] [--help] [--line] [--min-count=n]\n\
[--no-static] [--print-path] [--separate-files]\n\
[--static-call-graph] [--sum] [--table-length=len] [--traditional]\n\
[--version] [--width=n] [--ignore-non-functions]\n\
[--demangle[=STYLE]] [--no-demangle] [--external-symbol-table=name] [@FILE]\n\
[image-file] [profile-file...]\n"),
whoami);
if (REPORT_BUGS_TO[0] && status == 0)
fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
done (status);
}
int
main (int argc, char **argv)
{
char **sp, *str;
Sym **cg = 0;
int ch, user_specified = 0;
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
#endif
#if defined (HAVE_SETLOCALE)
setlocale (LC_CTYPE, "");
#endif
#ifdef ENABLE_NLS
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
#endif
whoami = argv[0];
xmalloc_set_program_name (whoami);
expandargv (&argc, &argv);
while ((ch = getopt_long (argc, argv,
"aA::bBcC::d::De:E:f:F:hiI:J::k:lLm:n:N:O:p::P::q::Q::rR:sS:t:Tvw:xyzZ::",
long_options, 0))
!= EOF)
{
switch (ch)
{
case 'a':
ignore_static_funcs = TRUE;
break;
case 'A':
if (optarg)
{
sym_id_add (optarg, INCL_ANNO);
}
output_style |= STYLE_ANNOTATED_SOURCE;
user_specified |= STYLE_ANNOTATED_SOURCE;
break;
case 'b':
print_descriptions = FALSE;
break;
case 'B':
output_style |= STYLE_CALL_GRAPH;
user_specified |= STYLE_CALL_GRAPH;
break;
case 'c':
ignore_direct_calls = TRUE;
break;
case 'C':
if (optarg)
{
sym_id_add (optarg, INCL_EXEC);
}
output_style |= STYLE_EXEC_COUNTS;
user_specified |= STYLE_EXEC_COUNTS;
break;
case 'd':
if (optarg)
{
debug_level |= atoi (optarg);
debug_level |= ANYDEBUG;
}
else
{
debug_level = ~0;
}
DBG (ANYDEBUG, printf ("[main] debug-level=0x%x\n", debug_level));
#ifndef DEBUG
printf (_("%s: debugging not supported; -d ignored\n"), whoami);
#endif /* DEBUG */
break;
case 'D':
ignore_non_functions = TRUE;
break;
case 'E':
sym_id_add (optarg, EXCL_TIME);
case 'e':
sym_id_add (optarg, EXCL_GRAPH);
break;
case 'F':
sym_id_add (optarg, INCL_TIME);
case 'f':
sym_id_add (optarg, INCL_GRAPH);
break;
case 'g':
sym_id_add (optarg, EXCL_FLAT);
break;
case 'G':
sym_id_add (optarg, INCL_FLAT);
break;
case 'h':
usage (stdout, 0);
case 'i':
output_style |= STYLE_GMON_INFO;
user_specified |= STYLE_GMON_INFO;
break;
case 'I':
search_list_append (&src_search_list, optarg);
break;
case 'J':
if (optarg)
{
sym_id_add (optarg, EXCL_ANNO);
output_style |= STYLE_ANNOTATED_SOURCE;
}
else
{
output_style &= ~STYLE_ANNOTATED_SOURCE;
}
user_specified |= STYLE_ANNOTATED_SOURCE;
break;
case 'k':
sym_id_add (optarg, EXCL_ARCS);
break;
case 'l':
line_granularity = TRUE;
break;
case 'L':
print_path = TRUE;
break;
case 'm':
bb_min_calls = (unsigned long) strtoul (optarg, (char **) NULL, 10);
break;
case 'n':
sym_id_add (optarg, INCL_TIME);
break;
case 'N':
sym_id_add (optarg, EXCL_TIME);
break;
case 'O':
switch (optarg[0])
{
case 'a':
file_format = FF_AUTO;
break;
case 'm':
file_format = FF_MAGIC;
break;
case 'b':
file_format = FF_BSD;
break;
case '4':
file_format = FF_BSD44;
break;
case 'p':
file_format = FF_PROF;
break;
default:
fprintf (stderr, _("%s: unknown file format %s\n"),
optarg, whoami);
done (1);
}
break;
case 'p':
if (optarg)
{
sym_id_add (optarg, INCL_FLAT);
}
output_style |= STYLE_FLAT_PROFILE;
user_specified |= STYLE_FLAT_PROFILE;
break;
case 'P':
if (optarg)
{
sym_id_add (optarg, EXCL_FLAT);
output_style |= STYLE_FLAT_PROFILE;
}
else
{
output_style &= ~STYLE_FLAT_PROFILE;
}
user_specified |= STYLE_FLAT_PROFILE;
break;
case 'q':
if (optarg)
{
if (strchr (optarg, '/'))
{
sym_id_add (optarg, INCL_ARCS);
}
else
{
sym_id_add (optarg, INCL_GRAPH);
}
}
output_style |= STYLE_CALL_GRAPH;
user_specified |= STYLE_CALL_GRAPH;
break;
case 'r':
output_style |= STYLE_FUNCTION_ORDER;
user_specified |= STYLE_FUNCTION_ORDER;
break;
case 'R':
output_style |= STYLE_FILE_ORDER;
user_specified |= STYLE_FILE_ORDER;
function_mapping_file = optarg;
break;
case 'Q':
if (optarg)
{
if (strchr (optarg, '/'))
{
sym_id_add (optarg, EXCL_ARCS);
}
else
{
sym_id_add (optarg, EXCL_GRAPH);
}
output_style |= STYLE_CALL_GRAPH;
}
else
{
output_style &= ~STYLE_CALL_GRAPH;
}
user_specified |= STYLE_CALL_GRAPH;
break;
case 's':
output_style |= STYLE_SUMMARY_FILE;
user_specified |= STYLE_SUMMARY_FILE;
break;
case 'S':
external_symbol_table = optarg;
DBG (AOUTDEBUG, printf ("external-symbol-table: %s\n", optarg));
break;
case 't':
bb_table_length = atoi (optarg);
if (bb_table_length < 0)
{
bb_table_length = 0;
}
break;
case 'T':
bsd_style_output = TRUE;
break;
case 'v':
/* This output is intended to follow the GNU standards document. */
printf (_("GNU gprof %s\n"), BFD_VERSION_STRING);
printf (_("Based on BSD gprof, copyright 1983 Regents of the University of California.\n"));
printf (_("\
This program is free software. This program has absolutely no warranty.\n"));
done (0);
case 'w':
output_width = atoi (optarg);
if (output_width < 1)
{
output_width = 1;
}
break;
case 'x':
bb_annotate_all_lines = TRUE;
break;
case 'y':
create_annotation_files = TRUE;
break;
case 'z':
ignore_zeros = FALSE;
break;
case 'Z':
if (optarg)
{
sym_id_add (optarg, EXCL_EXEC);
output_style |= STYLE_EXEC_COUNTS;
}
else
{
output_style &= ~STYLE_EXEC_COUNTS;
}
user_specified |= STYLE_ANNOTATED_SOURCE;
break;
case OPTION_DEMANGLE:
demangle = TRUE;
if (optarg != NULL)
{
enum demangling_styles style;
style = cplus_demangle_name_to_style (optarg);
if (style == unknown_demangling)
{
fprintf (stderr,
_("%s: unknown demangling style `%s'\n"),
whoami, optarg);
xexit (1);
}
cplus_demangle_set_style (style);
}
break;
case OPTION_NO_DEMANGLE:
demangle = FALSE;
break;
case OPTION_INLINE_FILE_NAMES:
inline_file_names = TRUE;
break;
default:
usage (stderr, 1);
}
}
/* Don't allow both ordering options, they modify the arc data in-place. */
if ((user_specified & STYLE_FUNCTION_ORDER)
&& (user_specified & STYLE_FILE_ORDER))
{
fprintf (stderr,_("\
%s: Only one of --function-ordering and --file-ordering may be specified.\n"),
whoami);
done (1);
}
/* --sum implies --line, otherwise we'd lose basic block counts in
gmon.sum */
if (output_style & STYLE_SUMMARY_FILE)
line_granularity = 1;
/* append value of GPROF_PATH to source search list if set: */
str = (char *) getenv ("GPROF_PATH");
if (str)
search_list_append (&src_search_list, str);
if (optind < argc)
a_out_name = argv[optind++];
if (optind < argc)
gmon_name = argv[optind++];
/* Turn off default functions. */
for (sp = &default_excluded_list[0]; *sp; sp++)
{
sym_id_add (*sp, EXCL_TIME);
sym_id_add (*sp, EXCL_GRAPH);
sym_id_add (*sp, EXCL_FLAT);
}
/* Read symbol table from core file. */
core_init (a_out_name);
/* If we should ignore direct function calls, we need to load to
core's text-space. */
if (ignore_direct_calls)
core_get_text_space (core_bfd);
/* Create symbols from core image. */
if (external_symbol_table)
core_create_syms_from (external_symbol_table);
else if (line_granularity)
core_create_line_syms ();
else
core_create_function_syms ();
/* Translate sym specs into syms. */
sym_id_parse ();
if (file_format == FF_PROF)
{
fprintf (stderr,
_("%s: sorry, file format `prof' is not yet supported\n"),
whoami);
done (1);
}
else
{
/* Get information about gmon.out file(s). */
do
{
gmon_out_read (gmon_name);
if (optind < argc)
gmon_name = argv[optind];
}
while (optind++ < argc);
}
/* If user did not specify output style, try to guess something
reasonable. */
if (output_style == 0)
{
if (gmon_input & (INPUT_HISTOGRAM | INPUT_CALL_GRAPH))
{
if (gmon_input & INPUT_HISTOGRAM)
output_style |= STYLE_FLAT_PROFILE;
if (gmon_input & INPUT_CALL_GRAPH)
output_style |= STYLE_CALL_GRAPH;
}
else
output_style = STYLE_EXEC_COUNTS;
output_style &= ~user_specified;
}
/* Dump a gmon.sum file if requested (before any other
processing!) */
if (output_style & STYLE_SUMMARY_FILE)
{
gmon_out_write (GMONSUM);
}
if (gmon_input & INPUT_HISTOGRAM)
{
hist_assign_samples ();
}
if (gmon_input & INPUT_CALL_GRAPH)
{
cg = cg_assemble ();
}
/* Do some simple sanity checks. */
if ((output_style & STYLE_FLAT_PROFILE)
&& !(gmon_input & INPUT_HISTOGRAM))
{
fprintf (stderr, _("%s: gmon.out file is missing histogram\n"), whoami);
done (1);
}
if ((output_style & STYLE_CALL_GRAPH) && !(gmon_input & INPUT_CALL_GRAPH))
{
fprintf (stderr,
_("%s: gmon.out file is missing call-graph data\n"), whoami);
done (1);
}
/* Output whatever user whishes to see. */
if (cg && (output_style & STYLE_CALL_GRAPH) && bsd_style_output)
{
/* Print the dynamic profile. */
cg_print (cg);
}
if (output_style & STYLE_FLAT_PROFILE)
{
/* Print the flat profile. */
hist_print ();
}
if (cg && (output_style & STYLE_CALL_GRAPH))
{
if (!bsd_style_output)
{
/* Print the dynamic profile. */
cg_print (cg);
}
cg_print_index ();
}
if (output_style & STYLE_EXEC_COUNTS)
print_exec_counts ();
if (output_style & STYLE_ANNOTATED_SOURCE)
print_annotated_source ();
if (output_style & STYLE_FUNCTION_ORDER)
cg_print_function_ordering ();
if (output_style & STYLE_FILE_ORDER)
cg_print_file_ordering ();
return 0;
}
void
done (int status)
{
exit (status);
}