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/*--------------------------------------------------------------------*/
/*--- For printing superblock profiles m_sbprofile.c ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2012-2017 Mozilla Foundation
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.
The GNU General Public License is contained in the file COPYING.
*/
/* Contributed by Julian Seward <jseward@acm.org> */
#include "pub_core_basics.h"
#include "pub_core_transtab.h"
#include "pub_core_libcbase.h"
#include "pub_core_libcprint.h"
#include "pub_core_libcassert.h"
#include "pub_core_debuginfo.h"
#include "pub_core_translate.h"
#include "pub_core_options.h"
#include "pub_core_sbprofile.h" // self
/*====================================================================*/
/*=== SB profiling ===*/
/*====================================================================*/
static UInt n_profiles = 0;
static
void show_SB_profile ( const SBProfEntry tops[], UInt n_tops,
ULong score_total, ULong ecs_done )
{
ULong score_cumul, score_cumul_saved, score_here;
Int r; /* must be signed */
HChar ecs_txt[50]; // large enough
if (ecs_done > 0) {
VG_(sprintf)(ecs_txt, "%'llu ecs done", ecs_done);
} else {
VG_(strcpy)(ecs_txt, "for the entire run");
}
vg_assert(VG_(clo_profyle_sbs));
VG_(printf)("\n");
VG_(printf)("<<<---<<<---<<<---<<<---<<<---<<<---<<<---"
"<<<---<<<---<<<---<<<---<<<---<<<\n");
VG_(printf)("<<<---<<<---<<<---<<<---<<<---<<<---<<<---"
"<<<---<<<---<<<---<<<---<<<---<<<\n");
VG_(printf)("\n");
VG_(printf)("<<< BEGIN SB Profile #%u (%s)\n",
++n_profiles, ecs_txt);
VG_(printf)("<<<\n");
VG_(printf)("\n");
VG_(printf)("Total score = %'llu\n\n", score_total);
// FIXME JRS EPOCH 28 July 2017: this is probably not right in general
DiEpoch cur_ep = VG_(current_DiEpoch)();
/* Print an initial per-block summary. */
VG_(printf)("rank ---cumulative--- -----self-----\n");
score_cumul = 0;
for (r = 0; r < n_tops; r++) {
if (tops[r].addr == 0)
continue;
if (tops[r].score == 0)
continue;
const HChar *name;
VG_(get_fnname_w_offset)(cur_ep, tops[r].addr, &name);
score_here = tops[r].score;
score_cumul += score_here;
/* Careful: do not divide by zero. score_total == 0 implies
score_cumul == 0 and also score_here == 0. */
Double percent_cumul =
score_total == 0 ? 100.0 : score_cumul * 100.0 / score_total;
Double percent_here =
score_total == 0 ? 100.0 : score_here * 100.0 / score_total;
VG_(printf)("%3d: (%9llu %5.2f%%) %9llu %5.2f%% 0x%lx %s\n",
r,
score_cumul, percent_cumul,
score_here, percent_here, tops[r].addr, name);
}
score_cumul_saved = score_cumul;
if (VG_(clo_profyle_flags) > 0) {
/* Show the details, if requested. */
VG_(printf)("\n");
VG_(printf)("-----------------------------"
"------------------------------\n");
VG_(printf)("--- SB Profile (SB details) "
" ---\n");
VG_(printf)("-----------------------------"
"------------------------------\n");
VG_(printf)("\n");
score_cumul = 0;
for (r = 0; r < n_tops; r++) {
if (tops[r].addr == 0)
continue;
if (tops[r].score == 0)
continue;
const HChar *name;
VG_(get_fnname_w_offset)(cur_ep, tops[r].addr, &name);
score_here = tops[r].score;
score_cumul += score_here;
/* Careful: do not divide by zero. score_total == 0 implies
score_cumul == 0 and also score_here == 0. */
Double percent_cumul =
score_total == 0 ? 100.0 : score_cumul * 100.0 / score_total;
Double percent_here =
score_total == 0 ? 100.0 : score_here * 100.0 / score_total;
VG_(printf)("\n");
VG_(printf)("=-=-=-=-=-=-=-=-=-=-=-=-=-= begin SB rank %d "
"=-=-=-=-=-=-=-=-=-=-=-=-=-=\n\n", r);
VG_(printf)("%3d: (%9llu %5.2f%%) %9llu %5.2f%% 0x%lx %s\n",
r,
score_cumul, percent_cumul,
score_here, percent_here, tops[r].addr, name );
VG_(printf)("\n");
VG_(discard_translations)(tops[r].addr, 1, "bb profile");
VG_(translate)(0, tops[r].addr, True, VG_(clo_profyle_flags), 0, True);
VG_(printf)("=-=-=-=-=-=-=-=-=-=-=-=-=-= end SB rank %d "
"=-=-=-=-=-=-=-=-=-=-=-=-=-=\n\n", r);
}
/* Print a final per-block summary, in reverse order, for the
convenience of people reading up from the end. */
score_cumul = score_cumul_saved;
for (r = n_tops-1; r >= 0; r--) {
if (tops[r].addr == 0)
continue;
if (tops[r].score == 0)
continue;
const HChar *name;
VG_(get_fnname_w_offset)(cur_ep, tops[r].addr, &name);
score_here = tops[r].score;
/* Careful: do not divide by zero. score_total == 0 implies
score_cumul == 0 and also score_here == 0. */
Double percent_cumul =
score_total == 0 ? 100.0 : score_cumul * 100.0 / score_total;
Double percent_here =
score_total == 0 ? 100.0 : score_here * 100.0 / score_total;
VG_(printf)("%3d: (%9llu %5.2f%%) %9llu %5.2f%% 0x%lx %s\n",
r,
score_cumul, percent_cumul,
score_here, percent_here, tops[r].addr, name );
score_cumul -= score_here;
}
VG_(printf)("rank ---cumulative--- -----self-----\n");
}
VG_(printf)("\n");
VG_(printf)(">>>\n");
VG_(printf)(">>> END SB Profile #%u (%s)\n",
n_profiles, ecs_txt);
VG_(printf)(">>>\n");
VG_(printf)(">>>--->>>--->>>--->>>--->>>--->>>--->>>---"
">>>--->>>--->>>--->>>--->>>--->>>\n");
VG_(printf)(">>>--->>>--->>>--->>>--->>>--->>>--->>>---"
">>>--->>>--->>>--->>>--->>>--->>>\n");
VG_(printf)("\n");
}
/* Get and print a profile. Also, zero out the counters so that if we
call it again later, the second call will only show new work done
since the first call. ecs_done == 0 is taken to mean this is a
run-end profile. */
void VG_(get_and_show_SB_profile) ( ULong ecs_done )
{
/* The number of blocks to show for a end-of-run profile */
# define N_MAX_END 200
/* The number of blocks to show for a mid-run profile. */
# define N_MAX_INTERVAL 20
vg_assert(N_MAX_INTERVAL <= N_MAX_END);
SBProfEntry tops[N_MAX_END];
Int nToShow = ecs_done == 0 ? N_MAX_END : N_MAX_INTERVAL;
ULong score_total = VG_(get_SB_profile)(tops, nToShow);
show_SB_profile(tops, nToShow, score_total, ecs_done);
# undef N_MAX_END
# undef N_MAX_INTERVAL
}
/*--------------------------------------------------------------------*/
/*--- end m_sbprofile.c ---*/
/*--------------------------------------------------------------------*/
|
