1 /* Default profiling support.
2 Copyright (C) 1996, 1997, 1998, 2000 Free Software Foundation, Inc.
3 Contributed by Cygnus Support.
5 This file is part of GDB, the GNU debugger.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
23 #include "sim-options.h"
24 #include "sim-assert.h"
39 #define COMMAS(n) sim_add_commas (comma_buf, sizeof (comma_buf), (n))
41 static MODULE_INIT_FN profile_init
;
42 static MODULE_UNINSTALL_FN profile_uninstall
;
44 static DECLARE_OPTION_HANDLER (profile_option_handler
);
47 OPTION_PROFILE_INSN
= OPTION_START
,
48 OPTION_PROFILE_MEMORY
,
52 OPTION_PROFILE_CPU_FREQUENCY
,
54 OPTION_PROFILE_PC_RANGE
,
55 OPTION_PROFILE_PC_GRANULARITY
,
57 OPTION_PROFILE_FUNCTION
60 static const OPTION profile_options
[] = {
61 { {"profile", optional_argument
, NULL
, 'p'},
62 'p', "on|off", "Perform profiling",
63 profile_option_handler
},
64 { {"profile-insn", optional_argument
, NULL
, OPTION_PROFILE_INSN
},
65 '\0', "on|off", "Perform instruction profiling",
66 profile_option_handler
},
67 { {"profile-memory", optional_argument
, NULL
, OPTION_PROFILE_MEMORY
},
68 '\0', "on|off", "Perform memory profiling",
69 profile_option_handler
},
70 { {"profile-core", optional_argument
, NULL
, OPTION_PROFILE_CORE
},
71 '\0', "on|off", "Perform CORE profiling",
72 profile_option_handler
},
73 { {"profile-model", optional_argument
, NULL
, OPTION_PROFILE_MODEL
},
74 '\0', "on|off", "Perform model profiling",
75 profile_option_handler
},
76 { {"profile-cpu-frequency", required_argument
, NULL
,
77 OPTION_PROFILE_CPU_FREQUENCY
},
78 '\0', "CPU FREQUENCY", "Specify the speed of the simulated cpu clock",
79 profile_option_handler
},
81 { {"profile-file", required_argument
, NULL
, OPTION_PROFILE_FILE
},
82 '\0', "FILE NAME", "Specify profile output file",
83 profile_option_handler
},
85 { {"profile-pc", optional_argument
, NULL
, OPTION_PROFILE_PC
},
86 '\0', "on|off", "Perform PC profiling",
87 profile_option_handler
},
88 { {"profile-pc-frequency", required_argument
, NULL
, 'F'},
89 'F', "PC PROFILE FREQUENCY", "Specified PC profiling frequency",
90 profile_option_handler
},
91 { {"profile-pc-size", required_argument
, NULL
, 'S'},
92 'S', "PC PROFILE SIZE", "Specify PC profiling size",
93 profile_option_handler
},
94 { {"profile-pc-granularity", required_argument
, NULL
, OPTION_PROFILE_PC_GRANULARITY
},
95 '\0', "PC PROFILE GRANULARITY", "Specify PC profiling sample coverage",
96 profile_option_handler
},
97 { {"profile-pc-range", required_argument
, NULL
, OPTION_PROFILE_PC_RANGE
},
98 '\0', "BASE,BOUND", "Specify PC profiling address range",
99 profile_option_handler
},
101 #ifdef SIM_HAVE_ADDR_RANGE
102 { {"profile-range", required_argument
, NULL
, OPTION_PROFILE_RANGE
},
103 '\0', "START,END", "Specify range of addresses for instruction and model profiling",
104 profile_option_handler
},
106 { {"profile-function", required_argument
, NULL
, OPTION_PROFILE_FUNCTION
},
107 '\0', "FUNCTION", "Specify function to profile",
108 profile_option_handler
},
112 { {NULL
, no_argument
, NULL
, 0}, '\0', NULL
, NULL
, NULL
}
115 /* Set/reset the profile options indicated in MASK. */
118 set_profile_option_mask (SIM_DESC sd
, const char *name
, int mask
, const char *arg
)
126 if (strcmp (arg
, "yes") == 0
127 || strcmp (arg
, "on") == 0
128 || strcmp (arg
, "1") == 0)
130 else if (strcmp (arg
, "no") == 0
131 || strcmp (arg
, "off") == 0
132 || strcmp (arg
, "0") == 0)
136 sim_io_eprintf (sd
, "Argument `%s' for `--profile%s' invalid, one of `on', `off', `yes', `no' expected\n", arg
, name
);
141 /* update applicable profile bits */
142 for (profile_nr
= 0; profile_nr
< MAX_PROFILE_VALUES
; ++profile_nr
)
144 if ((mask
& (1 << profile_nr
)) == 0)
147 #if 0 /* see sim-trace.c, set flags in STATE here if/when there are any */
148 /* Set non-cpu specific values. */
156 /* Set cpu values. */
157 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; cpu_nr
++)
159 CPU_PROFILE_FLAGS (STATE_CPU (sd
, cpu_nr
))[profile_nr
] = profile_val
;
163 /* Re-compute the cpu profile summary. */
166 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; cpu_nr
++)
167 CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))->profile_any_p
= 1;
171 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; cpu_nr
++)
173 CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))->profile_any_p
= 0;
174 for (profile_nr
= 0; profile_nr
< MAX_PROFILE_VALUES
; ++profile_nr
)
176 if (CPU_PROFILE_FLAGS (STATE_CPU (sd
, cpu_nr
))[profile_nr
])
178 CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))->profile_any_p
= 1;
188 /* Set one profile option based on its IDX value.
189 Not static as cgen-scache.c uses it. */
192 sim_profile_set_option (SIM_DESC sd
, const char *name
, int idx
, const char *arg
)
194 return set_profile_option_mask (sd
, name
, 1 << idx
, arg
);
198 parse_frequency (SIM_DESC sd
, const char *arg
, unsigned long *freq
)
201 /* First, parse a decimal number. */
206 for (/**/; *ch
!= '\0'; ++ch
)
210 *freq
= *freq
* 10 + (*ch
- '0');
213 /* Accept KHz, MHz or Hz as a suffix. */
214 if (tolower (*ch
) == 'm')
219 else if (tolower (*ch
) == 'k')
225 if (tolower (*ch
) == 'h')
228 if (tolower (*ch
) == 'z')
235 sim_io_eprintf (sd
, "Invalid argument for --profile-cpu-frequency: %s\n",
245 profile_option_handler (SIM_DESC sd
,
253 /* FIXME: Need to handle `cpu' arg. */
259 sim_io_eprintf (sd
, "Profiling not compiled in, `-p' ignored\n");
261 return set_profile_option_mask (sd
, "profile", PROFILE_USEFUL_MASK
,
265 case OPTION_PROFILE_INSN
:
266 if (WITH_PROFILE_INSN_P
)
267 return sim_profile_set_option (sd
, "-insn", PROFILE_INSN_IDX
, arg
);
269 sim_io_eprintf (sd
, "Instruction profiling not compiled in, `--profile-insn' ignored\n");
272 case OPTION_PROFILE_MEMORY
:
273 if (WITH_PROFILE_MEMORY_P
)
274 return sim_profile_set_option (sd
, "-memory", PROFILE_MEMORY_IDX
, arg
);
276 sim_io_eprintf (sd
, "Memory profiling not compiled in, `--profile-memory' ignored\n");
279 case OPTION_PROFILE_CORE
:
280 if (WITH_PROFILE_CORE_P
)
281 return sim_profile_set_option (sd
, "-core", PROFILE_CORE_IDX
, arg
);
283 sim_io_eprintf (sd
, "CORE profiling not compiled in, `--profile-core' ignored\n");
286 case OPTION_PROFILE_MODEL
:
287 if (WITH_PROFILE_MODEL_P
)
288 return sim_profile_set_option (sd
, "-model", PROFILE_MODEL_IDX
, arg
);
290 sim_io_eprintf (sd
, "Model profiling not compiled in, `--profile-model' ignored\n");
293 case OPTION_PROFILE_CPU_FREQUENCY
:
296 SIM_RC rc
= parse_frequency (sd
, arg
, &val
);
299 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
300 PROFILE_CPU_FREQ (CPU_PROFILE_DATA (STATE_CPU (sd
,cpu_nr
))) = val
;
305 case OPTION_PROFILE_FILE
:
306 /* FIXME: Might want this to apply to pc profiling only,
307 or have two profile file options. */
309 sim_io_eprintf (sd
, "Profiling not compiled in, `--profile-file' ignored\n");
312 FILE *f
= fopen (arg
, "w");
316 sim_io_eprintf (sd
, "Unable to open profile output file `%s'\n", arg
);
319 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
320 PROFILE_FILE (CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))) = f
;
324 case OPTION_PROFILE_PC
:
325 if (WITH_PROFILE_PC_P
)
326 return sim_profile_set_option (sd
, "-pc", PROFILE_PC_IDX
, arg
);
328 sim_io_eprintf (sd
, "PC profiling not compiled in, `--profile-pc' ignored\n");
332 if (WITH_PROFILE_PC_P
)
334 /* FIXME: Validate arg. */
335 int val
= atoi (arg
);
336 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
337 PROFILE_PC_FREQ (CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))) = val
;
338 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
339 CPU_PROFILE_FLAGS (STATE_CPU (sd
, cpu_nr
))[PROFILE_PC_IDX
] = 1;
342 sim_io_eprintf (sd
, "PC profiling not compiled in, `--profile-pc-frequency' ignored\n");
346 if (WITH_PROFILE_PC_P
)
348 /* FIXME: Validate arg. */
349 int val
= atoi (arg
);
350 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
351 PROFILE_PC_NR_BUCKETS (CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))) = val
;
352 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
353 CPU_PROFILE_FLAGS (STATE_CPU (sd
, cpu_nr
))[PROFILE_PC_IDX
] = 1;
356 sim_io_eprintf (sd
, "PC profiling not compiled in, `--profile-pc-size' ignored\n");
359 case OPTION_PROFILE_PC_GRANULARITY
:
360 if (WITH_PROFILE_PC_P
)
363 int val
= atoi (arg
);
364 /* check that the granularity is a power of two */
366 while (val
> (1 << shift
))
370 if (val
!= (1 << shift
))
372 sim_io_eprintf (sd
, "PC profiling granularity not a power of two\n");
377 sim_io_eprintf (sd
, "PC profiling granularity too small");
380 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
381 PROFILE_PC_SHIFT (CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))) = shift
;
382 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
383 CPU_PROFILE_FLAGS (STATE_CPU (sd
, cpu_nr
))[PROFILE_PC_IDX
] = 1;
386 sim_io_eprintf (sd
, "PC profiling not compiled in, `--profile-pc-granularity' ignored\n");
389 case OPTION_PROFILE_PC_RANGE
:
390 if (WITH_PROFILE_PC_P
)
392 /* FIXME: Validate args */
396 base
= strtoul (chp
, &chp
, 0);
399 sim_io_eprintf (sd
, "--profile-pc-range missing BOUND argument\n");
402 bound
= strtoul (chp
+ 1, NULL
, 0);
403 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
405 PROFILE_PC_START (CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))) = base
;
406 PROFILE_PC_END (CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))) = bound
;
408 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
409 CPU_PROFILE_FLAGS (STATE_CPU (sd
, cpu_nr
))[PROFILE_PC_IDX
] = 1;
412 sim_io_eprintf (sd
, "PC profiling not compiled in, `--profile-pc-range' ignored\n");
415 #ifdef SIM_HAVE_ADDR_RANGE
416 case OPTION_PROFILE_RANGE
:
420 unsigned long start
,end
;
421 start
= strtoul (chp
, &chp
, 0);
424 sim_io_eprintf (sd
, "--profile-range missing END argument\n");
427 end
= strtoul (chp
+ 1, NULL
, 0);
428 /* FIXME: Argument validation. */
430 sim_addr_range_add (PROFILE_RANGE (CPU_PROFILE_DATA (cpu
)),
433 for (cpu_nr
= 0; cpu_nr
< MAX_NR_PROCESSORS
; ++cpu_nr
)
434 sim_addr_range_add (PROFILE_RANGE (CPU_PROFILE_DATA (STATE_CPU (sd
, cpu_nr
))),
438 sim_io_eprintf (sd
, "Profiling not compiled in, `--profile-range' ignored\n");
441 case OPTION_PROFILE_FUNCTION
:
444 /*wip: need to compute function range given name*/
447 sim_io_eprintf (sd
, "Profiling not compiled in, `--profile-function' ignored\n");
449 #endif /* SIM_HAVE_ADDR_RANGE */
455 /* PC profiling support */
457 #if WITH_PROFILE_PC_P
460 profile_pc_cleanup (SIM_DESC sd
)
463 for (n
= 0; n
< MAX_NR_PROCESSORS
; n
++)
465 sim_cpu
*cpu
= STATE_CPU (sd
, n
);
466 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
467 if (PROFILE_PC_COUNT (data
) != NULL
)
468 zfree (PROFILE_PC_COUNT (data
));
469 PROFILE_PC_COUNT (data
) = NULL
;
470 if (PROFILE_PC_EVENT (data
) != NULL
)
471 sim_events_deschedule (sd
, PROFILE_PC_EVENT (data
));
472 PROFILE_PC_EVENT (data
) = NULL
;
478 profile_pc_uninstall (SIM_DESC sd
)
480 profile_pc_cleanup (sd
);
484 profile_pc_event (SIM_DESC sd
,
487 sim_cpu
*cpu
= (sim_cpu
*) data
;
488 PROFILE_DATA
*profile
= CPU_PROFILE_DATA (cpu
);
491 switch (STATE_WATCHPOINTS (sd
)->sizeof_pc
)
493 case 2: pc
= *(unsigned_2
*)(STATE_WATCHPOINTS (sd
)->pc
) ; break;
494 case 4: pc
= *(unsigned_4
*)(STATE_WATCHPOINTS (sd
)->pc
) ; break;
495 case 8: pc
= *(unsigned_8
*)(STATE_WATCHPOINTS (sd
)->pc
) ; break;
498 i
= (pc
- PROFILE_PC_START (profile
)) >> PROFILE_PC_SHIFT (profile
);
499 if (i
< PROFILE_PC_NR_BUCKETS (profile
))
500 PROFILE_PC_COUNT (profile
) [i
] += 1; /* Overflow? */
502 PROFILE_PC_COUNT (profile
) [PROFILE_PC_NR_BUCKETS (profile
)] += 1;
503 PROFILE_PC_EVENT (profile
) =
504 sim_events_schedule (sd
, PROFILE_PC_FREQ (profile
), profile_pc_event
, cpu
);
508 profile_pc_init (SIM_DESC sd
)
511 profile_pc_cleanup (sd
);
512 for (n
= 0; n
< MAX_NR_PROCESSORS
; n
++)
514 sim_cpu
*cpu
= STATE_CPU (sd
, n
);
515 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
516 if (CPU_PROFILE_FLAGS (STATE_CPU (sd
, n
))[PROFILE_PC_IDX
]
517 && STATE_WATCHPOINTS (sd
)->pc
!= NULL
)
520 /* fill in the frequency if not specified */
521 if (PROFILE_PC_FREQ (data
) == 0)
522 PROFILE_PC_FREQ (data
) = 256;
523 /* fill in the start/end if not specified */
524 if (PROFILE_PC_END (data
) == 0)
526 PROFILE_PC_START (data
) = STATE_TEXT_START (sd
);
527 PROFILE_PC_END (data
) = STATE_TEXT_END (sd
);
529 /* Compute the number of buckets if not specified. */
530 if (PROFILE_PC_NR_BUCKETS (data
) == 0)
532 if (PROFILE_PC_BUCKET_SIZE (data
) == 0)
533 PROFILE_PC_NR_BUCKETS (data
) = 16;
536 if (PROFILE_PC_END (data
) == 0)
538 /* nr_buckets = (full-address-range / 2) / (bucket_size / 2) */
539 PROFILE_PC_NR_BUCKETS (data
) =
540 ((1 << (STATE_WATCHPOINTS (sd
)->sizeof_pc
) * (8 - 1))
541 / (PROFILE_PC_BUCKET_SIZE (data
) / 2));
545 PROFILE_PC_NR_BUCKETS (data
) =
546 ((PROFILE_PC_END (data
)
547 - PROFILE_PC_START (data
)
548 + PROFILE_PC_BUCKET_SIZE (data
) - 1)
549 / PROFILE_PC_BUCKET_SIZE (data
));
553 /* Compute the bucket size if not specified. Ensure that it
554 is rounded up to the next power of two */
555 if (PROFILE_PC_BUCKET_SIZE (data
) == 0)
557 if (PROFILE_PC_END (data
) == 0)
558 /* bucket_size = (full-address-range / 2) / (nr_buckets / 2) */
559 bucket_size
= ((1 << ((STATE_WATCHPOINTS (sd
)->sizeof_pc
* 8) - 1))
560 / (PROFILE_PC_NR_BUCKETS (data
) / 2));
562 bucket_size
= ((PROFILE_PC_END (data
)
563 - PROFILE_PC_START (data
)
564 + PROFILE_PC_NR_BUCKETS (data
) - 1)
565 / PROFILE_PC_NR_BUCKETS (data
));
566 PROFILE_PC_SHIFT (data
) = 0;
567 while (bucket_size
< PROFILE_PC_BUCKET_SIZE (data
))
569 PROFILE_PC_SHIFT (data
) += 1;
572 /* Align the end address with bucket size */
573 if (PROFILE_PC_END (data
) != 0)
574 PROFILE_PC_END (data
) = (PROFILE_PC_START (data
)
575 + (PROFILE_PC_BUCKET_SIZE (data
)
576 * PROFILE_PC_NR_BUCKETS (data
)));
577 /* create the relevant buffers */
578 PROFILE_PC_COUNT (data
) =
579 NZALLOC (unsigned, PROFILE_PC_NR_BUCKETS (data
) + 1);
580 PROFILE_PC_EVENT (data
) =
581 sim_events_schedule (sd
,
582 PROFILE_PC_FREQ (data
),
591 profile_print_pc (sim_cpu
*cpu
, int verbose
)
593 SIM_DESC sd
= CPU_STATE (cpu
);
594 PROFILE_DATA
*profile
= CPU_PROFILE_DATA (cpu
);
600 if (PROFILE_PC_COUNT (profile
) == 0)
603 sim_io_printf (sd
, "Program Counter Statistics:\n\n");
605 /* First pass over data computes various things. */
608 for (i
= 0; i
<= PROFILE_PC_NR_BUCKETS (profile
); ++i
)
610 total
+= PROFILE_PC_COUNT (profile
) [i
];
611 if (PROFILE_PC_COUNT (profile
) [i
] > max_val
)
612 max_val
= PROFILE_PC_COUNT (profile
) [i
];
615 sim_io_printf (sd
, " Total samples: %s\n",
617 sim_io_printf (sd
, " Granularity: %s bytes per bucket\n",
618 COMMAS (PROFILE_PC_BUCKET_SIZE (profile
)));
619 sim_io_printf (sd
, " Size: %s buckets\n",
620 COMMAS (PROFILE_PC_NR_BUCKETS (profile
)));
621 sim_io_printf (sd
, " Frequency: %s cycles per sample\n",
622 COMMAS (PROFILE_PC_FREQ (profile
)));
624 if (PROFILE_PC_END (profile
) != 0)
625 sim_io_printf (sd
, " Range: 0x%lx 0x%lx\n",
626 (long) PROFILE_PC_START (profile
),
627 (long) PROFILE_PC_END (profile
));
629 if (verbose
&& max_val
!= 0)
631 /* Now we can print the histogram. */
632 sim_io_printf (sd
, "\n");
633 for (i
= 0; i
<= PROFILE_PC_NR_BUCKETS (profile
); ++i
)
635 if (PROFILE_PC_COUNT (profile
) [i
] != 0)
637 sim_io_printf (sd
, " ");
638 if (i
== PROFILE_PC_NR_BUCKETS (profile
))
639 sim_io_printf (sd
, "%10s:", "overflow");
641 sim_io_printf (sd
, "0x%08lx:",
642 (long) (PROFILE_PC_START (profile
)
643 + (i
* PROFILE_PC_BUCKET_SIZE (profile
))));
644 sim_io_printf (sd
, " %*s",
645 max_val
< 10000 ? 5 : 10,
646 COMMAS (PROFILE_PC_COUNT (profile
) [i
]));
647 sim_io_printf (sd
, " %4.1f",
648 (PROFILE_PC_COUNT (profile
) [i
] * 100.0) / total
);
649 sim_io_printf (sd
, ": ");
650 sim_profile_print_bar (sd
, PROFILE_HISTOGRAM_WIDTH
,
651 PROFILE_PC_COUNT (profile
) [i
],
653 sim_io_printf (sd
, "\n");
658 /* dump the histogram to the file "gmon.out" using BSD's gprof file
660 /* Since a profile data file is in the native format of the host on
661 which the profile is being, endian issues are not considered in
663 /* FIXME: Is this the best place for this code? */
665 FILE *pf
= fopen ("gmon.out", "wb");
668 sim_io_eprintf (sd
, "Failed to open \"gmon.out\" profile file\n");
672 /* FIXME: what if the target has a 64 bit PC? */
673 unsigned32 header
[3];
675 if (PROFILE_PC_END (profile
) != 0)
677 header
[0] = PROFILE_PC_START (profile
);
678 header
[1] = PROFILE_PC_END (profile
);
685 /* size of sample buffer (+ header) */
686 header
[2] = PROFILE_PC_NR_BUCKETS (profile
) * 2 + sizeof (header
);
687 ok
= fwrite (&header
, sizeof (header
), 1, pf
);
689 ok
&& (loop
< PROFILE_PC_NR_BUCKETS (profile
));
693 if (PROFILE_PC_COUNT (profile
) [loop
] >= 0xffff)
696 sample
= PROFILE_PC_COUNT (profile
) [loop
];
697 ok
= fwrite (&sample
, sizeof (sample
), 1, pf
);
700 sim_io_eprintf (sd
, "Failed to write to \"gmon.out\" profile file\n");
705 sim_io_printf (sd
, "\n");
710 /* Summary printing support. */
712 #if WITH_PROFILE_INSN_P
715 profile_insn_init (SIM_DESC sd
)
719 for (c
= 0; c
< MAX_NR_PROCESSORS
; ++c
)
721 sim_cpu
*cpu
= STATE_CPU (sd
, c
);
723 if (CPU_MAX_INSNS (cpu
) > 0)
724 PROFILE_INSN_COUNT (CPU_PROFILE_DATA (cpu
)) = NZALLOC (unsigned int, CPU_MAX_INSNS (cpu
));
731 profile_print_insn (sim_cpu
*cpu
, int verbose
)
733 unsigned int i
, n
, total
, max_val
, max_name_len
;
734 SIM_DESC sd
= CPU_STATE (cpu
);
735 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
738 /* If MAX_INSNS not set, insn profiling isn't supported. */
739 if (CPU_MAX_INSNS (cpu
) == 0)
742 sim_io_printf (sd
, "Instruction Statistics");
743 #ifdef SIM_HAVE_ADDR_RANGE
744 if (PROFILE_RANGE (data
)->ranges
)
745 sim_io_printf (sd
, " (for selected address range(s))");
747 sim_io_printf (sd
, "\n\n");
749 /* First pass over data computes various things. */
753 for (i
= 0; i
< CPU_MAX_INSNS (cpu
); ++i
)
755 const char *name
= (*CPU_INSN_NAME (cpu
)) (cpu
, i
);
759 total
+= PROFILE_INSN_COUNT (data
) [i
];
760 if (PROFILE_INSN_COUNT (data
) [i
] > max_val
)
761 max_val
= PROFILE_INSN_COUNT (data
) [i
];
763 if (n
> max_name_len
)
766 /* set the total insn count, in case client is being lazy */
767 if (! PROFILE_TOTAL_INSN_COUNT (data
))
768 PROFILE_TOTAL_INSN_COUNT (data
) = total
;
770 sim_io_printf (sd
, " Total: %s insns\n", COMMAS (total
));
772 if (verbose
&& max_val
!= 0)
774 /* Now we can print the histogram. */
775 sim_io_printf (sd
, "\n");
776 for (i
= 0; i
< CPU_MAX_INSNS (cpu
); ++i
)
778 const char *name
= (*CPU_INSN_NAME (cpu
)) (cpu
, i
);
782 if (PROFILE_INSN_COUNT (data
) [i
] != 0)
784 sim_io_printf (sd
, " %*s: %*s: ",
786 max_val
< 10000 ? 5 : 10,
787 COMMAS (PROFILE_INSN_COUNT (data
) [i
]));
788 sim_profile_print_bar (sd
, PROFILE_HISTOGRAM_WIDTH
,
789 PROFILE_INSN_COUNT (data
) [i
],
791 sim_io_printf (sd
, "\n");
796 sim_io_printf (sd
, "\n");
801 #if WITH_PROFILE_MEMORY_P
804 profile_print_memory (sim_cpu
*cpu
, int verbose
)
807 unsigned int total_read
, total_write
;
808 unsigned int max_val
, max_name_len
;
809 /* FIXME: Need to add smp support. */
810 SIM_DESC sd
= CPU_STATE (cpu
);
811 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
814 sim_io_printf (sd
, "Memory Access Statistics\n\n");
816 /* First pass over data computes various things. */
817 max_val
= total_read
= total_write
= max_name_len
= 0;
818 for (i
= 0; i
< MODE_TARGET_MAX
; ++i
)
820 total_read
+= PROFILE_READ_COUNT (data
) [i
];
821 total_write
+= PROFILE_WRITE_COUNT (data
) [i
];
822 if (PROFILE_READ_COUNT (data
) [i
] > max_val
)
823 max_val
= PROFILE_READ_COUNT (data
) [i
];
824 if (PROFILE_WRITE_COUNT (data
) [i
] > max_val
)
825 max_val
= PROFILE_WRITE_COUNT (data
) [i
];
826 n
= strlen (MODE_NAME (i
));
827 if (n
> max_name_len
)
831 /* One could use PROFILE_LABEL_WIDTH here. I chose not to. */
832 sim_io_printf (sd
, " Total read: %s accesses\n",
833 COMMAS (total_read
));
834 sim_io_printf (sd
, " Total write: %s accesses\n",
835 COMMAS (total_write
));
837 if (verbose
&& max_val
!= 0)
839 /* FIXME: Need to separate instruction fetches from data fetches
840 as the former swamps the latter. */
841 /* Now we can print the histogram. */
842 sim_io_printf (sd
, "\n");
843 for (i
= 0; i
< MODE_TARGET_MAX
; ++i
)
845 if (PROFILE_READ_COUNT (data
) [i
] != 0)
847 sim_io_printf (sd
, " %*s read: %*s: ",
848 max_name_len
, MODE_NAME (i
),
849 max_val
< 10000 ? 5 : 10,
850 COMMAS (PROFILE_READ_COUNT (data
) [i
]));
851 sim_profile_print_bar (sd
, PROFILE_HISTOGRAM_WIDTH
,
852 PROFILE_READ_COUNT (data
) [i
],
854 sim_io_printf (sd
, "\n");
856 if (PROFILE_WRITE_COUNT (data
) [i
] != 0)
858 sim_io_printf (sd
, " %*s write: %*s: ",
859 max_name_len
, MODE_NAME (i
),
860 max_val
< 10000 ? 5 : 10,
861 COMMAS (PROFILE_WRITE_COUNT (data
) [i
]));
862 sim_profile_print_bar (sd
, PROFILE_HISTOGRAM_WIDTH
,
863 PROFILE_WRITE_COUNT (data
) [i
],
865 sim_io_printf (sd
, "\n");
870 sim_io_printf (sd
, "\n");
875 #if WITH_PROFILE_CORE_P
878 profile_print_core (sim_cpu
*cpu
, int verbose
)
881 unsigned int max_val
;
882 /* FIXME: Need to add smp support. */
883 SIM_DESC sd
= CPU_STATE (cpu
);
884 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
887 sim_io_printf (sd
, "CORE Statistics\n\n");
889 /* First pass over data computes various things. */
894 for (map
= 0; map
< nr_maps
; map
++)
896 total
+= PROFILE_CORE_COUNT (data
) [map
];
897 if (PROFILE_CORE_COUNT (data
) [map
] > max_val
)
898 max_val
= PROFILE_CORE_COUNT (data
) [map
];
902 /* One could use PROFILE_LABEL_WIDTH here. I chose not to. */
903 sim_io_printf (sd
, " Total: %s accesses\n",
906 if (verbose
&& max_val
!= 0)
909 /* Now we can print the histogram. */
910 sim_io_printf (sd
, "\n");
911 for (map
= 0; map
< nr_maps
; map
++)
913 if (PROFILE_CORE_COUNT (data
) [map
] != 0)
915 sim_io_printf (sd
, "%10s:", map_to_str (map
));
916 sim_io_printf (sd
, "%*s: ",
917 max_val
< 10000 ? 5 : 10,
918 COMMAS (PROFILE_CORE_COUNT (data
) [map
]));
919 sim_profile_print_bar (sd
, PROFILE_HISTOGRAM_WIDTH
,
920 PROFILE_CORE_COUNT (data
) [map
],
922 sim_io_printf (sd
, "\n");
927 sim_io_printf (sd
, "\n");
932 #if WITH_PROFILE_MODEL_P
935 profile_print_model (sim_cpu
*cpu
, int verbose
)
937 SIM_DESC sd
= CPU_STATE (cpu
);
938 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
939 unsigned long cti_stall_cycles
= PROFILE_MODEL_CTI_STALL_CYCLES (data
);
940 unsigned long load_stall_cycles
= PROFILE_MODEL_LOAD_STALL_CYCLES (data
);
941 unsigned long total_cycles
= PROFILE_MODEL_TOTAL_CYCLES (data
);
944 sim_io_printf (sd
, "Model %s Timing Information",
945 MODEL_NAME (CPU_MODEL (cpu
)));
946 #ifdef SIM_HAVE_ADDR_RANGE
947 if (PROFILE_RANGE (data
)->ranges
)
948 sim_io_printf (sd
, " (for selected address range(s))");
950 sim_io_printf (sd
, "\n\n");
951 sim_io_printf (sd
, " %-*s %s\n",
952 PROFILE_LABEL_WIDTH
, "Taken branches:",
953 COMMAS (PROFILE_MODEL_TAKEN_COUNT (data
)));
954 sim_io_printf (sd
, " %-*s %s\n",
955 PROFILE_LABEL_WIDTH
, "Untaken branches:",
956 COMMAS (PROFILE_MODEL_UNTAKEN_COUNT (data
)));
957 sim_io_printf (sd
, " %-*s %s\n",
958 PROFILE_LABEL_WIDTH
, "Cycles stalled due to branches:",
959 COMMAS (cti_stall_cycles
));
960 sim_io_printf (sd
, " %-*s %s\n",
961 PROFILE_LABEL_WIDTH
, "Cycles stalled due to loads:",
962 COMMAS (load_stall_cycles
));
963 sim_io_printf (sd
, " %-*s %s\n",
964 PROFILE_LABEL_WIDTH
, "Total cycles (*approximate*):",
965 COMMAS (total_cycles
));
966 sim_io_printf (sd
, "\n");
972 sim_profile_print_bar (SIM_DESC sd
, unsigned int width
,
973 unsigned int val
, unsigned int max_val
)
975 unsigned int i
, count
;
977 count
= ((double) val
/ (double) max_val
) * (double) width
;
979 for (i
= 0; i
< count
; ++i
)
980 sim_io_printf (sd
, "*");
983 /* Print the simulator's execution speed for CPU. */
986 profile_print_speed (sim_cpu
*cpu
)
988 SIM_DESC sd
= CPU_STATE (cpu
);
989 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
990 unsigned long milliseconds
= sim_events_elapsed_time (sd
);
991 unsigned long total
= PROFILE_TOTAL_INSN_COUNT (data
);
996 sim_io_printf (sd
, "Simulator Execution Speed\n\n");
999 sim_io_printf (sd
, " Total instructions: %s\n", COMMAS (total
));
1001 if (milliseconds
< 1000)
1002 sim_io_printf (sd
, " Total execution time: < 1 second\n\n");
1005 /* The printing of the time rounded to 2 decimal places makes the speed
1006 calculation seem incorrect [even though it is correct]. So round
1007 MILLISECONDS first. This can marginally affect the result, but it's
1008 better that the user not perceive there's a math error. */
1009 secs
= (double) milliseconds
/ 1000;
1010 secs
= ((double) (unsigned long) (secs
* 100 + .5)) / 100;
1011 sim_io_printf (sd
, " Total execution time : %.2f seconds\n", secs
);
1012 /* Don't confuse things with data that isn't useful.
1013 If we ran for less than 2 seconds, only use the data if we
1014 executed more than 100,000 insns. */
1015 if (secs
>= 2 || total
>= 100000)
1016 sim_io_printf (sd
, " Simulator speed: %s insns/second\n",
1017 COMMAS ((unsigned long) ((double) total
/ secs
)));
1020 /* Print simulated execution time if the cpu frequency has been specified. */
1021 clock
= PROFILE_CPU_FREQ (data
);
1024 if (clock
>= 1000000)
1025 sim_io_printf (sd
, " Simulated cpu frequency: %.2f MHz\n",
1028 sim_io_printf (sd
, " Simulated cpu frequency: %.2f Hz\n", clock
);
1030 #if WITH_PROFILE_MODEL_P
1031 if (PROFILE_FLAGS (data
) [PROFILE_MODEL_IDX
])
1033 /* The printing of the time rounded to 2 decimal places makes the
1034 speed calculation seem incorrect [even though it is correct].
1035 So round SECS first. This can marginally affect the result,
1036 but it's better that the user not perceive there's a math
1038 secs
= PROFILE_MODEL_TOTAL_CYCLES (data
) / clock
;
1039 secs
= ((double) (unsigned long) (secs
* 100 + .5)) / 100;
1040 sim_io_printf (sd
, " Simulated execution time: %.2f seconds\n",
1043 #endif /* WITH_PROFILE_MODEL_P */
1047 /* Print selected address ranges. */
1050 profile_print_addr_ranges (sim_cpu
*cpu
)
1052 ADDR_SUBRANGE
*asr
= PROFILE_RANGE (CPU_PROFILE_DATA (cpu
))->ranges
;
1053 SIM_DESC sd
= CPU_STATE (cpu
);
1057 sim_io_printf (sd
, "Selected address ranges\n\n");
1060 sim_io_printf (sd
, " 0x%lx - 0x%lx\n",
1061 (long) asr
->start
, (long) asr
->end
);
1064 sim_io_printf (sd
, "\n");
1068 /* Top level function to print all summary profile information.
1069 It is [currently] intended that all such data is printed by this function.
1070 I'd rather keep it all in one place for now. To that end, MISC_CPU and
1071 MISC are callbacks used to print any miscellaneous data.
1073 One might want to add a user option that allows printing by type or by cpu
1074 (i.e. print all insn data for each cpu first, or print data cpu by cpu).
1075 This may be a case of featuritis so it's currently left out.
1077 Note that results are indented two spaces to distinguish them from
1081 profile_info (SIM_DESC sd
, int verbose
)
1084 int print_title_p
= 0;
1086 /* Only print the title if some data has been collected. */
1087 /* ??? Why don't we just exit if no data collected? */
1088 /* FIXME: If the number of processors can be selected on the command line,
1089 then MAX_NR_PROCESSORS will need to take an argument of `sd'. */
1091 for (c
= 0; c
< MAX_NR_PROCESSORS
; ++c
)
1093 sim_cpu
*cpu
= STATE_CPU (sd
, c
);
1094 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
1096 for (i
= 0; i
< MAX_PROFILE_VALUES
; ++i
)
1097 if (PROFILE_FLAGS (data
) [i
])
1099 /* One could break out early if print_title_p is set. */
1102 sim_io_printf (sd
, "Summary profiling results:\n\n");
1104 /* Loop, cpu by cpu, printing results. */
1106 for (c
= 0; c
< MAX_NR_PROCESSORS
; ++c
)
1108 sim_cpu
*cpu
= STATE_CPU (sd
, c
);
1109 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
1111 if (MAX_NR_PROCESSORS
> 1
1113 #if WITH_PROFILE_INSN_P
1114 || PROFILE_FLAGS (data
) [PROFILE_INSN_IDX
]
1116 #if WITH_PROFILE_MEMORY_P
1117 || PROFILE_FLAGS (data
) [PROFILE_MEMORY_IDX
]
1119 #if WITH_PROFILE_CORE_P
1120 || PROFILE_FLAGS (data
) [PROFILE_CORE_IDX
]
1122 #if WITH_PROFILE_MODEL_P
1123 || PROFILE_FLAGS (data
) [PROFILE_MODEL_IDX
]
1125 #if WITH_PROFILE_SCACHE_P && WITH_SCACHE
1126 || PROFILE_FLAGS (data
) [PROFILE_SCACHE_IDX
]
1128 #if WITH_PROFILE_PC_P
1129 || PROFILE_FLAGS (data
) [PROFILE_PC_IDX
]
1133 sim_io_printf (sd
, "CPU %d\n\n", c
);
1136 #ifdef SIM_HAVE_ADDR_RANGE
1138 && (PROFILE_INSN_P (cpu
)
1139 || PROFILE_MODEL_P (cpu
)))
1140 profile_print_addr_ranges (cpu
);
1143 #if WITH_PROFILE_INSN_P
1144 if (PROFILE_FLAGS (data
) [PROFILE_INSN_IDX
])
1145 profile_print_insn (cpu
, verbose
);
1148 #if WITH_PROFILE_MEMORY_P
1149 if (PROFILE_FLAGS (data
) [PROFILE_MEMORY_IDX
])
1150 profile_print_memory (cpu
, verbose
);
1153 #if WITH_PROFILE_CORE_P
1154 if (PROFILE_FLAGS (data
) [PROFILE_CORE_IDX
])
1155 profile_print_core (cpu
, verbose
);
1158 #if WITH_PROFILE_MODEL_P
1159 if (PROFILE_FLAGS (data
) [PROFILE_MODEL_IDX
])
1160 profile_print_model (cpu
, verbose
);
1163 #if WITH_PROFILE_SCACHE_P && WITH_SCACHE
1164 if (PROFILE_FLAGS (data
) [PROFILE_SCACHE_IDX
])
1165 scache_print_profile (cpu
, verbose
);
1168 #if WITH_PROFILE_PC_P
1169 if (PROFILE_FLAGS (data
) [PROFILE_PC_IDX
])
1170 profile_print_pc (cpu
, verbose
);
1173 /* Print cpu-specific data before the execution speed. */
1174 if (PROFILE_INFO_CPU_CALLBACK (data
) != NULL
)
1175 PROFILE_INFO_CPU_CALLBACK (data
) (cpu
, verbose
);
1177 /* Always try to print execution time and speed. */
1179 || PROFILE_FLAGS (data
) [PROFILE_INSN_IDX
])
1180 profile_print_speed (cpu
);
1183 /* Finally print non-cpu specific miscellaneous data. */
1184 if (STATE_PROFILE_INFO_CALLBACK (sd
))
1185 STATE_PROFILE_INFO_CALLBACK (sd
) (sd
, verbose
);
1189 /* Install profiling support in the simulator. */
1192 profile_install (SIM_DESC sd
)
1196 SIM_ASSERT (STATE_MAGIC (sd
) == SIM_MAGIC_NUMBER
);
1197 sim_add_option_table (sd
, NULL
, profile_options
);
1198 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
1199 memset (CPU_PROFILE_DATA (STATE_CPU (sd
, i
)), 0,
1200 sizeof (* CPU_PROFILE_DATA (STATE_CPU (sd
, i
))));
1201 #if WITH_PROFILE_INSN_P
1202 sim_module_add_init_fn (sd
, profile_insn_init
);
1204 #if WITH_PROFILE_PC_P
1205 sim_module_add_uninstall_fn (sd
, profile_pc_uninstall
);
1206 sim_module_add_init_fn (sd
, profile_pc_init
);
1208 sim_module_add_init_fn (sd
, profile_init
);
1209 sim_module_add_uninstall_fn (sd
, profile_uninstall
);
1210 sim_module_add_info_fn (sd
, profile_info
);
1215 profile_init (SIM_DESC sd
)
1217 #ifdef SIM_HAVE_ADDR_RANGE
1218 /* Check if a range has been specified without specifying what to
1223 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
1225 sim_cpu
*cpu
= STATE_CPU (sd
, i
);
1227 if (ADDR_RANGE_RANGES (PROFILE_RANGE (CPU_PROFILE_DATA (cpu
)))
1228 && ! (PROFILE_INSN_P (cpu
)
1229 || PROFILE_MODEL_P (cpu
)))
1231 sim_io_eprintf_cpu (cpu
, "Profiling address range specified without --profile-insn or --profile-model.\n");
1232 sim_io_eprintf_cpu (cpu
, "Address range ignored.\n");
1233 sim_addr_range_delete (PROFILE_RANGE (CPU_PROFILE_DATA (cpu
)),
1234 0, ~ (address_word
) 0);
1244 profile_uninstall (SIM_DESC sd
)
1248 for (i
= 0; i
< MAX_NR_PROCESSORS
; ++i
)
1250 sim_cpu
*cpu
= STATE_CPU (sd
, i
);
1251 PROFILE_DATA
*data
= CPU_PROFILE_DATA (cpu
);
1253 if (PROFILE_FILE (data
) != NULL
)
1255 /* If output from different cpus is going to the same file,
1256 avoid closing the file twice. */
1257 for (j
= 0; j
< i
; ++j
)
1258 if (PROFILE_FILE (CPU_PROFILE_DATA (STATE_CPU (sd
, j
)))
1259 == PROFILE_FILE (data
))
1262 fclose (PROFILE_FILE (data
));
1265 if (PROFILE_INSN_COUNT (data
) != NULL
)
1266 zfree (PROFILE_INSN_COUNT (data
));