107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2009-2012 Stanislav Shwartsman
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// Written by Stanislav Shwartsman [sshwarts at sourceforge net]
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include <assert.h>
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#include "bochs.h"
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#include "cpu/cpu.h"
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#define BX_IA_STATS_ENTRIES (BX_IA_LAST*2) /* /r and /m form */
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static struct bx_instr_ia_stats {
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bool active;
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Bit32u ia_cnt[BX_IA_STATS_ENTRIES];
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Bit32u total_cnt;
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Bit32u interrupts;
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Bit32u exceptions;
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} *ia_stats;
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static logfunctions *instrument_log = new logfunctions ();
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#define LOG_THIS instrument_log->
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void bx_instr_initialize(unsigned cpu)
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{
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assert(cpu < BX_SMP_PROCESSORS);
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if (ia_stats == NULL)
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ia_stats = new bx_instr_ia_stats[BX_SMP_PROCESSORS];
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ia_stats[cpu].active = 0;
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fprintf(stderr, "Initialize cpu %u instrumentation module\n", cpu);
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}
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void bx_instr_reset(unsigned cpu, unsigned type)
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{
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ia_stats[cpu].active = 1;
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ia_stats[cpu].total_cnt = 0;
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for(int n=0; n < BX_IA_STATS_ENTRIES; n++)
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ia_stats[cpu].ia_cnt[n] = 0;
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ia_stats[cpu].interrupts = ia_stats[cpu].exceptions = 0;
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}
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void bx_instr_interrupt(unsigned cpu, unsigned vector)
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{
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if(ia_stats[cpu].active) ia_stats[cpu].interrupts++;
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}
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void bx_instr_exception(unsigned cpu, unsigned vector, unsigned error_code)
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{
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if(ia_stats[cpu].active) ia_stats[cpu].exceptions++;
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}
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void bx_instr_hwinterrupt(unsigned cpu, unsigned vector, Bit16u cs, bx_address eip)
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{
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if(ia_stats[cpu].active) ia_stats[cpu].interrupts++;
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}
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#define IA_CNT_DUMP_THRESHOLD 100000000 /* 100M */
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void bx_instr_before_execution(unsigned cpu, bxInstruction_c *i)
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{
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if(ia_stats[cpu].active) {
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ia_stats[cpu].ia_cnt[i->getIaOpcode() * 2 + !!i->modC0()]++;
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ia_stats[cpu].total_cnt++;
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if (ia_stats[cpu].total_cnt > IA_CNT_DUMP_THRESHOLD) {
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printf("Dump IA stats for CPU %u\n", cpu);
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printf("----------------------------------------------------------\n");
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printf("Interrupts: %d, Exceptions: %d\n", ia_stats[cpu].interrupts, ia_stats[cpu].exceptions);
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while(1) {
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Bit32u max = 0, max_index = 0;
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for (int n=0;n < BX_IA_STATS_ENTRIES; n++) {
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if (ia_stats[cpu].ia_cnt[n] > max) {
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max = ia_stats[cpu].ia_cnt[n];
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max_index = n;
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}
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}
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if (max == 0) break;
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printf("%s /%c: %f%%\n", get_bx_opcode_name(max_index/2), (max_index & 1) ? 'm' : 'r', ia_stats[cpu].ia_cnt[max_index] * 100.0f / ia_stats[cpu].total_cnt);
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ia_stats[cpu].ia_cnt[max_index] = 0;
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}
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ia_stats[cpu].interrupts = ia_stats[cpu].exceptions = ia_stats[cpu].total_cnt = 0;
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}
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}
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}
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