Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | # |
| 3 | # opcontrol is a script to control OProfile |
| 4 | # opcontrol --help and opcontrol --list-events have info |
| 5 | # |
| 6 | # Copyright 2002 |
| 7 | # Read the file COPYING |
| 8 | # |
| 9 | # Authors: John Levon, Philippe Elie, Will Cohen, Jens Wilke, Daniel Hansel |
| 10 | # |
| 11 | # Copyright IBM Corporation 2007 |
| 12 | # |
| 13 | # NOTE: This script should be as shell independent as possible |
| 14 | |
| 15 | SYSCTL=do_sysctl |
| 16 | |
| 17 | # A replacement function for the sysctl (procps package) utility which is |
| 18 | # missing on some distribution (e.g. slack 7.0). |
| 19 | # Handles only the -w option of sysctl. |
| 20 | do_sysctl() |
| 21 | { |
| 22 | if test "$1" != "-w"; then |
| 23 | echo "$0 unknown sysctl option" >&2 |
| 24 | exit 1 |
| 25 | fi |
| 26 | |
| 27 | shift |
| 28 | |
| 29 | arg=`echo $1 | awk -F= '{print $1}'` |
| 30 | val=`echo $1 | awk -F= '{print $2}'` |
| 31 | |
| 32 | dev_name=`echo $arg | tr . /` |
| 33 | |
| 34 | if test ! -f /proc/sys/$dev_name; then |
| 35 | echo "/proc/sys/$dev_name does not exist or is not a regular file" >&2 |
| 36 | exit 1 |
| 37 | fi |
| 38 | echo $val > /proc/sys/$dev_name |
| 39 | } |
| 40 | |
| 41 | |
| 42 | # check value is set |
| 43 | error_if_empty() |
| 44 | { |
| 45 | if test -z "$2"; then |
| 46 | echo "No value given for option $1" >&2 |
| 47 | do_help |
| 48 | exit 1 |
| 49 | fi |
| 50 | } |
| 51 | |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 52 | # guess_number_base() checks if string is a valid octal(8), hexidecimal(16), |
| 53 | # or decimal number(10). The value is returned in $?. Returns 0, if string |
| 54 | # isn't a octal, hexidecimal, or decimal number. |
| 55 | guess_number_base() |
| 56 | { |
| 57 | if [[ "$1" =~ ^0[0-7]*$ ]] ; then |
| 58 | return 8; |
| 59 | elif [[ "$1" =~ ^0x[0-9a-fA-F]+$ ]] ; then |
| 60 | return 16; |
| 61 | elif [[ "$1" =~ ^[1-9][0-9]*$ ]] ; then |
| 62 | return 10; |
| 63 | else |
| 64 | return 0; |
| 65 | fi |
| 66 | } |
| 67 | |
| 68 | # check value is a valid number |
| 69 | error_if_not_number() |
| 70 | { |
| 71 | guess_number_base $2 |
| 72 | if test "$?" -eq 0 ; then |
| 73 | echo "Argument for $1, $2, is not a valid number." >&2 |
| 74 | exit 1 |
| 75 | fi |
| 76 | } |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 77 | |
| 78 | # rm_device arguments $1=file_name |
| 79 | rm_device() |
| 80 | { |
| 81 | if test -c "$1"; then |
| 82 | vecho "Removing $1" |
| 83 | rm "$1" |
| 84 | fi |
| 85 | } |
| 86 | |
| 87 | |
| 88 | # create_device arguments $1=file_name $2=MAJOR_NR $3=MINOR_NR |
| 89 | create_device() |
| 90 | { |
| 91 | vecho "Doing mknod $1" |
| 92 | mknod "$1" c $2 $3 |
| 93 | if test "$?" != "0"; then |
| 94 | echo "Couldn't mknod $1" >&2 |
| 95 | exit 1 |
| 96 | fi |
| 97 | chmod 700 "$1" |
| 98 | } |
| 99 | |
| 100 | |
| 101 | move_and_remove() |
| 102 | { |
| 103 | if test -e $1; then |
| 104 | mv $1 $SAMPLES_DIR/.tmp_reset.$$ |
| 105 | rm -rf $SAMPLES_DIR/.tmp_reset.$$ |
| 106 | fi |
| 107 | } |
| 108 | |
| 109 | |
| 110 | # verbose echo |
| 111 | vecho() |
| 112 | { |
| 113 | if test -n "$VERBOSE"; then |
| 114 | echo $@ |
| 115 | fi |
| 116 | } |
| 117 | |
| 118 | |
| 119 | is_tool_available() |
| 120 | { |
| 121 | if which $1 &>/dev/null; then |
| 122 | if test -x `which $1`; then |
| 123 | return 1 |
| 124 | fi |
| 125 | fi |
| 126 | |
| 127 | return 0 |
| 128 | } |
| 129 | |
| 130 | |
| 131 | # print help message |
| 132 | do_help() |
| 133 | { |
| 134 | cat >&2 <<EOF |
| 135 | opcontrol: usage: |
| 136 | -l/--list-events list event types and unit masks |
| 137 | -?/--help this message |
| 138 | -v/--version show version |
| 139 | --init loads the oprofile module and oprofilefs |
| 140 | --setup give setup arguments (may be omitted) |
| 141 | --status show configuration |
| 142 | --start-daemon start daemon without starting profiling |
| 143 | -s/--start start data collection |
| 144 | -d/--dump flush the collected profiling data |
| 145 | -t/--stop stop data collection |
| 146 | -h/--shutdown stop data collection and kill daemon |
| 147 | -V/--verbose[=all,sfile,arcs,samples,module,misc,ext] |
| 148 | be verbose in the daemon log |
| 149 | --reset clears out data from current session |
| 150 | --save=name save data from current session to session_name |
| 151 | --deinit unload the oprofile module and oprofilefs |
| 152 | |
| 153 | -e/--event=eventspec |
| 154 | |
| 155 | Choose an event. May be specified multiple times. Of the form |
| 156 | "default" or "name:count:unitmask:kernel:user", where : |
| 157 | |
| 158 | name: event name, e.g. CPU_CLK_UNHALTED or RTC_INTERRUPTS |
| 159 | count: reset counter value e.g. 100000 |
| 160 | unitmask: hardware unit mask e.g. 0x0f |
| 161 | kernel: whether to profile kernel: 0 or 1 |
| 162 | user: whether to profile userspace: 0 or 1 |
| 163 | |
| 164 | -p/--separate=type,[types] |
| 165 | |
| 166 | Separate profiles as follows : |
| 167 | |
| 168 | none: no profile separation |
| 169 | library: separate shared library profiles per-application |
| 170 | kernel: same as library, plus kernel profiles |
| 171 | thread: per-thread/process profiles |
| 172 | cpu: per CPU profiles |
| 173 | all: all of the above |
| 174 | |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 175 | -c/--callgraph=#depth enable callgraph sample collection with a |
| 176 | maximum depth. Use '0' to disable callgraph |
| 177 | profiling. |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 178 | --session-dir=dir place sample database in dir instead of |
| 179 | default location (/var/lib/oprofile) |
| 180 | -i/--image=name[,names] list of binaries to profile (default is "all") |
| 181 | --vmlinux=file vmlinux kernel image |
| 182 | --no-vmlinux no kernel image (vmlinux) available |
| 183 | --kernel-range=start,end kernel range vma address in hexadecimal |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 184 | --buffer-size=num kernel buffer size in sample units. |
| 185 | Rules: A non-zero value goes into effect after |
| 186 | a '--shutdown/start' sequence. A value of |
| 187 | zero sets this parameter back to default value |
| 188 | but does not go into effect until after a |
| 189 | '--deinit/init' sequence. |
| 190 | --buffer-watershed kernel buffer watershed in sample units (2.6 |
| 191 | kernel). Same rules as defined for |
| 192 | buffer-size. |
| 193 | --cpu-buffer-size=num per-cpu buffer size in units (2.6 kernel) |
| 194 | Same rules as defined for buffer-size. |
| 195 | --note-table-size kernel notes buffer size in notes units (2.4 |
| 196 | kernel) |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 197 | |
| 198 | --xen Xen image (for Xen only) |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 199 | --active-domains=<list> List of domains in profiling session (for Xen) |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 200 | (list contains domain ids separated by commas) |
| 201 | EOF |
| 202 | } |
| 203 | |
| 204 | |
| 205 | # load the module and mount oprofilefs |
| 206 | load_module_26() |
| 207 | { |
| 208 | grep oprofilefs /proc/filesystems >/dev/null |
| 209 | if test "$?" -ne 0; then |
| 210 | modprobe oprofile |
| 211 | if test "$?" != "0"; then |
| 212 | # couldn't load the module |
| 213 | return |
| 214 | fi |
| 215 | grep oprofile /proc/modules >/dev/null |
| 216 | if test "$?" != "0"; then |
| 217 | # didn't find module |
| 218 | return |
| 219 | fi |
| 220 | grep oprofilefs /proc/filesystems >/dev/null |
| 221 | if test "$?" -ne 0; then |
| 222 | # filesystem still not around |
| 223 | return |
| 224 | fi |
| 225 | fi |
| 226 | mkdir /dev/oprofile >/dev/null 2>&1 |
| 227 | grep oprofilefs /etc/mtab >/dev/null |
| 228 | if test "$?" -ne 0; then |
| 229 | mount -t oprofilefs nodev /dev/oprofile >/dev/null |
| 230 | fi |
| 231 | KERNEL_SUPPORT=yes |
| 232 | OPROFILE_AVAILABLE=yes |
| 233 | } |
| 234 | |
| 235 | |
| 236 | load_module_24() |
| 237 | { |
| 238 | grep oprof /proc/devices >/dev/null |
| 239 | if test "$?" -ne 0; then |
| 240 | modprobe oprofile |
| 241 | if test "$?" != "0"; then |
| 242 | # couldn't load a module |
| 243 | return |
| 244 | fi |
| 245 | grep oprofile /proc/modules >/dev/null |
| 246 | if test "$?" != "0"; then |
| 247 | # didn't find module |
| 248 | return |
| 249 | fi |
| 250 | fi |
| 251 | KERNEL_SUPPORT=no |
| 252 | OPROFILE_AVAILABLE=yes |
| 253 | } |
| 254 | |
| 255 | |
| 256 | load_module() |
| 257 | { |
| 258 | OPROFILE_AVAILABLE=no |
| 259 | load_module_26 |
| 260 | if test "$OPROFILE_AVAILABLE" != "yes"; then |
| 261 | load_module_24 |
| 262 | fi |
| 263 | if test "$OPROFILE_AVAILABLE" != "yes"; then |
| 264 | echo "Kernel doesn't support oprofile" >&2 |
| 265 | exit 1 |
| 266 | fi |
| 267 | } |
| 268 | |
| 269 | # setup variables related to path or daemon. Set vars according to following |
| 270 | # relationship: command-line-option > config-file-settings > defaults. |
| 271 | # Note that upon entry SESSION_DIR may be set by command-line option. |
| 272 | do_init_daemon_vars() |
| 273 | { |
| 274 | # load settings from config file, keeping command-line value |
| 275 | # of SESSION_DIR if necessary. |
| 276 | if test -n "$SESSION_DIR"; then |
| 277 | SAVED=$SESSION_DIR |
| 278 | fi |
| 279 | do_load_setup |
| 280 | if test -n "$SAVED"; then |
| 281 | SESSION_DIR=$SAVED |
| 282 | fi |
| 283 | |
| 284 | # daemon parameters (as in op_config.h). Note that we preserve |
| 285 | # any previous value of SESSION_DIR |
| 286 | if test -z "$SESSION_DIR"; then |
| 287 | SESSION_DIR="/var/lib/oprofile" |
| 288 | fi |
| 289 | LOCK_FILE="$SESSION_DIR/lock" |
| 290 | SAMPLES_DIR="$SESSION_DIR/samples" |
| 291 | LOG_FILE="$SAMPLES_DIR/oprofiled.log" |
| 292 | CURRENT_SAMPLES_DIR="$SAMPLES_DIR/current" |
| 293 | } |
| 294 | |
| 295 | |
| 296 | # pick the appropriate device mount based on kernel |
| 297 | decide_oprofile_device_mount() |
| 298 | { |
| 299 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 300 | MOUNT="/dev/oprofile" |
| 301 | else |
| 302 | MOUNT="/proc/sys/dev/oprofile" |
| 303 | fi |
| 304 | } |
| 305 | |
| 306 | |
| 307 | # pick the appropriate locations device for oprofile based on kernel |
| 308 | decide_oprofile_device() |
| 309 | { |
| 310 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 311 | DEVICE_FILE="$MOUNT/buffer" |
| 312 | else |
| 313 | DEVICE_FILE="$SESSION_DIR/opdev" |
| 314 | NOTE_DEVICE_FILE="$SESSION_DIR/opnotedev" |
| 315 | HASH_MAP_DEVICE_FILE="$SESSION_DIR/ophashmapdev" |
| 316 | fi |
| 317 | } |
| 318 | |
| 319 | # initialise parameters |
| 320 | do_init() |
| 321 | { |
| 322 | # for these three buffer size == 0 means use the default value |
| 323 | # hard-coded in op_user.h |
| 324 | BUF_SIZE=0 |
| 325 | BUF_WATERSHED=0 |
| 326 | CPU_BUF_SIZE=0 |
| 327 | NOTE_SIZE=0 |
| 328 | VMLINUX= |
| 329 | XENIMAGE="none" |
| 330 | VERBOSE="" |
| 331 | SEPARATE_LIB=0 |
| 332 | SEPARATE_KERNEL=0 |
| 333 | SEPARATE_THREAD=0 |
| 334 | SEPARATE_CPU=0 |
| 335 | CALLGRAPH=0 |
| 336 | IBS_FETCH_EVENTS="" |
| 337 | IBS_FETCH_COUNT=0 |
| 338 | IBS_FETCH_UNITMASK=0 |
| 339 | IBS_OP_EVENTS="" |
| 340 | IBS_OP_COUNT=0 |
| 341 | IBS_OP_UNITMASK=0 |
| 342 | |
| 343 | OPROFILED="$OPDIR/oprofiled" |
| 344 | |
| 345 | # location for daemon setup information |
| 346 | SETUP_DIR="/root/.oprofile" |
| 347 | SETUP_FILE="$SETUP_DIR/daemonrc" |
| 348 | |
| 349 | # initialize daemon vars |
| 350 | decide_oprofile_device_mount |
| 351 | CPUTYPE=`cat $MOUNT/cpu_type` |
| 352 | OP_COUNTERS=`ls $MOUNT/ | grep "^[0-9]\+\$" | tr "\n" " "` |
| 353 | NR_CHOSEN=0 |
| 354 | |
| 355 | do_init_daemon_vars |
| 356 | decide_oprofile_device |
| 357 | |
| 358 | DEFAULT_EVENT=`$OPHELP --get-default-event` |
| 359 | |
| 360 | IS_TIMER=0 |
| 361 | IS_PERFMON=0 |
| 362 | if test "$CPUTYPE" = "timer"; then |
| 363 | IS_TIMER=1 |
| 364 | else |
| 365 | case "$CPUTYPE" in |
| 366 | ia64/*) |
| 367 | IS_PERFMON=$KERNEL_SUPPORT |
| 368 | ;; |
| 369 | esac |
| 370 | fi |
| 371 | } |
| 372 | |
| 373 | |
| 374 | create_dir() |
| 375 | { |
| 376 | if test ! -d "$1"; then |
| 377 | mkdir -p "$1" |
| 378 | if test "$?" != "0"; then |
| 379 | echo "Couldn't mkdir -p $1" >&2 |
| 380 | exit 1 |
| 381 | fi |
| 382 | chmod 755 "$1" |
| 383 | fi |
| 384 | } |
| 385 | |
| 386 | get_event() |
| 387 | { |
| 388 | GOTEVENT=`eval "echo \\$CHOSEN_EVENTS_$1"` |
| 389 | } |
| 390 | |
| 391 | set_event() |
| 392 | { |
| 393 | eval "CHOSEN_EVENTS_$1=$2" |
| 394 | } |
| 395 | |
| 396 | |
| 397 | # save all the setup related information |
| 398 | do_save_setup() |
| 399 | { |
| 400 | create_dir "$SETUP_DIR" |
| 401 | |
| 402 | touch $SETUP_FILE |
| 403 | chmod 644 $SETUP_FILE |
| 404 | >$SETUP_FILE |
| 405 | |
| 406 | echo "SESSION_DIR=$SESSION_DIR" >>$SETUP_FILE |
| 407 | |
| 408 | if test "$NR_CHOSEN" != "0"; then |
| 409 | for f in `seq 0 $((NR_CHOSEN - 1))`; do |
| 410 | get_event $f |
| 411 | echo "CHOSEN_EVENTS_${f}=$GOTEVENT" >>$SETUP_FILE |
| 412 | done |
| 413 | fi |
| 414 | |
| 415 | echo "NR_CHOSEN=$NR_CHOSEN" >>$SETUP_FILE |
| 416 | |
| 417 | echo "SEPARATE_LIB=$SEPARATE_LIB" >> $SETUP_FILE |
| 418 | echo "SEPARATE_KERNEL=$SEPARATE_KERNEL" >> $SETUP_FILE |
| 419 | echo "SEPARATE_THREAD=$SEPARATE_THREAD" >> $SETUP_FILE |
| 420 | echo "SEPARATE_CPU=$SEPARATE_CPU" >> $SETUP_FILE |
| 421 | echo "VMLINUX=$VMLINUX" >> $SETUP_FILE |
| 422 | echo "IMAGE_FILTER=$IMAGE_FILTER" >> $SETUP_FILE |
| 423 | # write the actual information to file |
| 424 | if test "$BUF_SIZE" != "0"; then |
| 425 | echo "BUF_SIZE=$BUF_SIZE" >> $SETUP_FILE |
| 426 | fi |
| 427 | if test "$BUF_WATERSHED" != "0"; then |
| 428 | echo "BUF_WATERSHED=$BUF_WATERSHED" >> $SETUP_FILE |
| 429 | fi |
| 430 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 431 | echo "CPU_BUF_SIZE=$CPU_BUF_SIZE" >> $SETUP_FILE |
| 432 | fi |
| 433 | if test "$KERNEL_SUPPORT" != "yes"; then |
| 434 | echo "NOTE_SIZE=$NOTE_SIZE" >> $SETUP_FILE |
| 435 | fi |
| 436 | echo "CALLGRAPH=$CALLGRAPH" >> $SETUP_FILE |
| 437 | if test "$KERNEL_RANGE"; then |
| 438 | echo "KERNEL_RANGE=$KERNEL_RANGE" >> $SETUP_FILE |
| 439 | fi |
| 440 | echo "XENIMAGE=$XENIMAGE" >> $SETUP_FILE |
| 441 | if test "$XEN_RANGE"; then |
| 442 | echo "XEN_RANGE=$XEN_RANGE" >> $SETUP_FILE |
| 443 | fi |
| 444 | } |
| 445 | |
| 446 | |
| 447 | # reload all the setup-related information |
| 448 | do_load_setup() |
| 449 | { |
| 450 | if test -f "$SETUP_FILE"; then |
| 451 | # load the actual information from file |
| 452 | # FIXME this is insecure, arbitrary commands could be added to |
| 453 | # $SETUP_FILE and be executed as root |
| 454 | . $SETUP_FILE |
| 455 | fi |
| 456 | } |
| 457 | |
| 458 | |
| 459 | check_valid_args() |
| 460 | { |
| 461 | if test -z "$VMLINUX"; then |
| 462 | echo "No vmlinux file specified. You must specify the correct vmlinux file, e.g." >&2 |
| 463 | echo "opcontrol --vmlinux=/path/to/vmlinux" >&2 |
| 464 | echo "If you do not have a vmlinux file, use " >&2 |
| 465 | echo "opcontrol --no-vmlinux" >&2 |
| 466 | echo "Enter opcontrol --help for full options" >&2 |
| 467 | exit 1 |
| 468 | fi |
| 469 | |
| 470 | if test -f "$VMLINUX"; then |
| 471 | return |
| 472 | fi |
| 473 | |
| 474 | if test "$VMLINUX" = "none"; then |
| 475 | return |
| 476 | fi |
| 477 | |
| 478 | echo "The specified vmlinux file \"$VMLINUX\" doesn't exist." >&2 |
| 479 | exit 1 |
| 480 | |
| 481 | # similar check for Xen image |
| 482 | if test -f "$XENIMAGE"; then |
| 483 | return |
| 484 | fi |
| 485 | |
| 486 | if test "$XENIMAGE" = "none"; then |
| 487 | return |
| 488 | fi |
| 489 | |
| 490 | echo "The specified XenImage file \"$XENIMAGE\" does not exist." >&2 |
| 491 | exit 1 |
| 492 | } |
| 493 | |
| 494 | |
| 495 | # get start and end points of a file image (linux kernel or xen) |
| 496 | # get_image_range parameter: $1=type_of_image (linux or xen) |
| 497 | get_image_range() |
| 498 | { |
| 499 | if test "$1" = "xen"; then |
| 500 | if test ! -z "$XEN_RANGE"; then |
| 501 | return; |
| 502 | fi |
| 503 | FILE_IMAGE="$XENIMAGE" |
| 504 | else |
| 505 | if test ! -z "$KERNEL_RANGE"; then |
| 506 | return; |
| 507 | fi |
| 508 | FILE_IMAGE="$VMLINUX" |
| 509 | fi |
| 510 | |
| 511 | if test "$FILE_IMAGE" = "none"; then |
| 512 | return; |
| 513 | fi |
| 514 | |
| 515 | if is_tool_available objdump; then |
| 516 | echo "objdump is not installed on this system, use opcontrol --kernel-range=start,end or opcontrol --xen-range= or install objdump" |
| 517 | exit 1 |
| 518 | fi |
| 519 | |
| 520 | # start at the start of .text, and end at _etext |
| 521 | range_info=`objdump -h $FILE_IMAGE 2>/dev/null | grep " .text "` |
| 522 | tmp1=`echo $range_info | awk '{print $4}'` |
| 523 | tmp2=`objdump -t $FILE_IMAGE 2>/dev/null | grep "_etext$" | awk '{ print $1 }'` |
| 524 | |
| 525 | if test -z "$tmp1" -o -z "$tmp2"; then |
| 526 | echo "The specified file $FILE_IMAGE does not seem to be valid" >&2 |
| 527 | echo "Make sure you are using the non-compressed image file (e.g. vmlinux not vmlinuz)" >&2 |
| 528 | vecho "found start as \"$tmp1\", end as \"$tmp2\"" >&2 |
| 529 | exit 1 |
| 530 | fi |
| 531 | |
| 532 | if test "$1" = "xen"; then |
| 533 | XEN_RANGE="`echo $tmp1`,`echo $tmp2`" |
| 534 | vecho "XEN_RANGE $XEN_RANGE" |
| 535 | else |
| 536 | KERNEL_RANGE="`echo $tmp1`,`echo $tmp2`" |
| 537 | vecho "KERNEL_RANGE $KERNEL_RANGE" |
| 538 | fi |
| 539 | } |
| 540 | |
| 541 | |
| 542 | # validate --separate= parameters. This function is called with IFS=, |
| 543 | # so on each argument is splitted |
| 544 | validate_separate_args() |
| 545 | { |
| 546 | error_if_empty $1 $2 # we need at least one argument |
| 547 | local i=1 |
| 548 | SEPARATE_LIB=0 |
| 549 | SEPARATE_KERNEL=0 |
| 550 | SEPARATE_THREAD=0 |
| 551 | SEPARATE_CPU=0 |
| 552 | while [ "$i" -lt "$#" ]; do |
| 553 | shift |
| 554 | case "$1" in |
| 555 | lib|library) |
| 556 | SEPARATE_LIB=1 |
| 557 | ;; |
| 558 | kernel) |
| 559 | # first implied by second |
| 560 | SEPARATE_LIB=1 |
| 561 | SEPARATE_KERNEL=1 |
| 562 | ;; |
| 563 | thread) |
| 564 | SEPARATE_THREAD=1 |
| 565 | ;; |
| 566 | cpu) |
| 567 | SEPARATE_CPU=1 |
| 568 | ;; |
| 569 | all) |
| 570 | SEPARATE_LIB=1 |
| 571 | SEPARATE_KERNEL=1 |
| 572 | SEPARATE_THREAD=1 |
| 573 | SEPARATE_CPU=1 |
| 574 | ;; |
| 575 | none) |
| 576 | SEPARATE_LIB=0 |
| 577 | SEPARATE_KERNEL=0 |
| 578 | SEPARATE_THREAD=0 |
| 579 | SEPARATE_CPU=0 |
| 580 | ;; |
| 581 | *) |
| 582 | echo "invalid --separate= argument: $1" |
| 583 | exit 1 |
| 584 | esac |
| 585 | done |
| 586 | } |
| 587 | |
| 588 | |
| 589 | # check the counters make sense, and resolve the hardware allocation |
| 590 | verify_counters() |
| 591 | { |
| 592 | if test "$IS_TIMER" = 1; then |
| 593 | if test "$NR_CHOSEN" != 0; then |
| 594 | echo "You cannot specify any performance counter events" >&2 |
| 595 | echo "because OProfile is in timer mode." >&2 |
| 596 | exit 1 |
| 597 | fi |
| 598 | return |
| 599 | fi |
| 600 | |
| 601 | OPHELP_ARGS= |
| 602 | |
| 603 | if test "$NR_CHOSEN" != 0; then |
| 604 | for f in `seq 0 $((NR_CHOSEN - 1))`; do |
| 605 | get_event $f |
| 606 | if test "$GOTEVENT" != ""; then |
| 607 | verify_ibs $GOTEVENT |
| 608 | OPHELP_ARGS="$OPHELP_ARGS $GOTEVENT" |
| 609 | fi |
| 610 | done |
| 611 | |
| 612 | if test ! -z "$OPHELP_ARGS" ; then |
| 613 | HW_CTRS=`$OPHELP --check-events $OPHELP_ARGS --callgraph=$CALLGRAPH` |
| 614 | if test "$?" != 0; then |
| 615 | exit 1 |
| 616 | fi |
| 617 | fi |
| 618 | fi |
| 619 | } |
| 620 | |
| 621 | |
| 622 | # setup any needed default value in chosen events |
| 623 | normalise_events() |
| 624 | { |
| 625 | if test "$NR_CHOSEN" -le 0 || test "$IS_TIMER" = 1; then |
| 626 | return |
| 627 | fi |
| 628 | |
| 629 | for f in `seq 0 $((NR_CHOSEN - 1))`; do |
| 630 | get_event $f |
| 631 | if test "$GOTEVENT" != ""; then |
| 632 | EVENT=`echo $GOTEVENT | awk -F: '{print $1}'` |
| 633 | EVENT_VAL=`$OPHELP $EVENT` |
| 634 | if test "$?" != 0; then |
| 635 | exit 1 |
| 636 | fi |
| 637 | COUNT=`echo $GOTEVENT | awk -F: '{print $2}'` |
| 638 | UNIT_MASK=`echo $GOTEVENT | awk -F: '{print $3}'` |
| 639 | KERNEL=`echo $GOTEVENT | awk -F: '{print $4}'` |
| 640 | USER=`echo $GOTEVENT | awk -F: '{print $5}'` |
| 641 | if test -z "$UNIT_MASK"; then |
| 642 | TMPEVENT="$EVENT:$COUNT" |
| 643 | UNIT_MASK=`$OPHELP --unit-mask $TMPEVENT` |
| 644 | if test "$?" != 0; then |
| 645 | exit 1 |
| 646 | fi |
| 647 | fi |
| 648 | if test -z "$KERNEL"; then |
| 649 | KERNEL=1 |
| 650 | fi |
| 651 | if test -z "$USER"; then |
| 652 | USER=1 |
| 653 | fi |
| 654 | |
| 655 | set_event $f "$EVENT:$COUNT:$UNIT_MASK:$KERNEL:$USER" |
| 656 | fi |
| 657 | done |
| 658 | } |
| 659 | |
| 660 | |
| 661 | # get and check specified options |
| 662 | do_options() |
| 663 | { |
| 664 | EXCLUSIVE_ARGC=0 |
| 665 | SETUP=no |
| 666 | NEED_SETUP=no |
| 667 | SEEN_EVENT=0 |
| 668 | |
| 669 | # note: default settings have already been loaded |
| 670 | |
| 671 | while [ "$#" -ne 0 ] |
| 672 | do |
| 673 | arg=`printf %s $1 | awk -F= '{print $1}'` |
| 674 | val=`printf %s $1 | awk -F= '{print $2}'` |
| 675 | shift |
| 676 | if test -z "$val"; then |
| 677 | local possibleval=$1 |
| 678 | printf %s $1 "$possibleval" | grep ^- >/dev/null 2>&1 |
| 679 | if test "$?" != "0"; then |
| 680 | val=$possibleval |
| 681 | if [ "$#" -ge 1 ]; then |
| 682 | shift |
| 683 | fi |
| 684 | fi |
| 685 | fi |
| 686 | |
| 687 | case "$arg" in |
| 688 | |
| 689 | --init) |
| 690 | # this is already done in load_module |
| 691 | # because need to know the processor type |
| 692 | # and number of registers |
| 693 | INIT=yes; |
| 694 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 695 | EXCLUSIVE_ARGV="$arg" |
| 696 | ;; |
| 697 | |
| 698 | --setup) |
| 699 | SETUP=yes |
| 700 | ;; |
| 701 | |
| 702 | --start-daemon) |
| 703 | if test "$KERNEL_SUPPORT" != "yes"; then |
| 704 | echo "$arg unsupported. use \"--start\"" >&2 |
| 705 | exit 1 |
| 706 | fi |
| 707 | START_DAEMON=yes |
| 708 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 709 | EXCLUSIVE_ARGV="$arg" |
| 710 | ;; |
| 711 | |
| 712 | -s|--start) |
| 713 | START=yes |
| 714 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 715 | EXCLUSIVE_ARGV="$arg" |
| 716 | ;; |
| 717 | |
| 718 | -d|--dump) |
| 719 | DUMP=yes |
| 720 | ONLY_DUMP=yes |
| 721 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 722 | EXCLUSIVE_ARGV="$arg" |
| 723 | ;; |
| 724 | |
| 725 | -t|--stop) |
| 726 | if test "$KERNEL_SUPPORT" != "yes"; then |
| 727 | echo "$arg unsupported. use \"--shutdown\"" >&2 |
| 728 | exit 1 |
| 729 | fi |
| 730 | DUMP=yes |
| 731 | STOP=yes |
| 732 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 733 | EXCLUSIVE_ARGV="$arg" |
| 734 | ;; |
| 735 | |
| 736 | -h|--shutdown) |
| 737 | DUMP=yes |
| 738 | STOP=yes |
| 739 | KILL_DAEMON=yes |
| 740 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 741 | EXCLUSIVE_ARGV="$arg" |
| 742 | ;; |
| 743 | |
| 744 | --status) |
| 745 | STATUS=yes |
| 746 | ;; |
| 747 | |
| 748 | --reset) |
| 749 | DUMP=yes |
| 750 | RESET=yes |
| 751 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 752 | EXCLUSIVE_ARGV="$arg" |
| 753 | ;; |
| 754 | |
| 755 | --save) |
| 756 | error_if_empty $arg $val |
| 757 | DUMP=yes |
| 758 | SAVE_SESSION=yes |
| 759 | SAVE_NAME=$val |
| 760 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 761 | EXCLUSIVE_ARGV="$arg" |
| 762 | ;; |
| 763 | |
| 764 | --deinit) |
| 765 | DUMP=yes |
| 766 | test ! -f "$LOCK_FILE" || { |
| 767 | STOP=yes |
| 768 | KILL_DAEMON=yes |
| 769 | } |
| 770 | DEINIT=yes |
| 771 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 772 | EXCLUSIVE_ARGV="$arg" |
| 773 | ;; |
| 774 | |
| 775 | # --setup options |
| 776 | |
| 777 | --session-dir) |
| 778 | # already processed |
| 779 | ;; |
| 780 | --buffer-size) |
| 781 | error_if_empty $arg $val |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 782 | error_if_not_number $arg $val |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 783 | BUF_SIZE=$val |
| 784 | DO_SETUP=yes |
| 785 | ;; |
| 786 | --buffer-watershed) |
| 787 | if test "$KERNEL_SUPPORT" != "yes"; then |
| 788 | echo "$arg unsupported for this kernel version" |
| 789 | exit 1 |
| 790 | fi |
| 791 | error_if_empty $arg $val |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 792 | error_if_not_number $arg $val |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 793 | BUF_WATERSHED=$val |
| 794 | DO_SETUP=yes |
| 795 | ;; |
| 796 | --cpu-buffer-size) |
| 797 | if test "$KERNEL_SUPPORT" != "yes"; then |
| 798 | echo "$arg unsupported for this kernel version" |
| 799 | exit 1 |
| 800 | fi |
| 801 | error_if_empty $arg $val |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 802 | error_if_not_number $arg $val |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 803 | CPU_BUF_SIZE=$val |
| 804 | DO_SETUP=yes |
| 805 | ;; |
| 806 | -e|--event) |
| 807 | error_if_empty $arg $val |
| 808 | # reset any read-in defaults from daemonrc |
| 809 | if test "$SEEN_EVENT" = "0"; then |
| 810 | NR_CHOSEN=0 |
| 811 | SEEN_EVENT=1 |
| 812 | fi |
| 813 | if test "$val" = "default"; then |
| 814 | val=$DEFAULT_EVENT |
| 815 | fi |
| 816 | set_event $NR_CHOSEN "$val" |
| 817 | NR_CHOSEN=`expr $NR_CHOSEN + 1` |
| 818 | DO_SETUP=yes |
| 819 | ;; |
| 820 | -p|--separate) |
| 821 | OLD_IFS=$IFS |
| 822 | IFS=, |
| 823 | validate_separate_args $arg $val |
| 824 | IFS=$OLD_IFS |
| 825 | DO_SETUP=yes |
| 826 | ;; |
| 827 | -c|--callgraph) |
| 828 | error_if_empty $arg $val |
| 829 | if test ! -f $MOUNT/backtrace_depth; then |
| 830 | echo "Call-graph profiling unsupported on this kernel/hardware" >&2 |
| 831 | exit 1 |
| 832 | fi |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 833 | error_if_not_number $arg $val |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 834 | CALLGRAPH=$val |
| 835 | DO_SETUP=yes |
| 836 | ;; |
| 837 | --vmlinux) |
| 838 | error_if_empty $arg $val |
| 839 | VMLINUX=$val |
| 840 | DO_SETUP=yes |
| 841 | ;; |
| 842 | --no-vmlinux) |
| 843 | VMLINUX=none |
| 844 | DO_SETUP=yes |
| 845 | ;; |
| 846 | --kernel-range) |
| 847 | error_if_empty $arg $val |
| 848 | KERNEL_RANGE=$val |
| 849 | DO_SETUP=yes |
| 850 | ;; |
| 851 | --xen) |
| 852 | error_if_empty $arg $val |
| 853 | XENIMAGE=$val |
| 854 | DO_SETUP=yes |
| 855 | ;; |
| 856 | --active-domains) |
| 857 | error_if_empty $arg $val |
| 858 | ACTIVE_DOMAINS=$val |
| 859 | DO_SETUP=yes |
| 860 | ;; |
| 861 | --note-table-size) |
| 862 | error_if_empty $arg $val |
| 863 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 864 | echo "\"$arg\" meaningless on this kernel" >&2 |
| 865 | exit 1 |
| 866 | else |
| 867 | NOTE_SIZE=$val |
| 868 | fi |
| 869 | DO_SETUP=yes |
| 870 | ;; |
| 871 | -i|--image) |
| 872 | error_if_empty $arg $val |
| 873 | if test "$val" = "all"; then |
| 874 | IMAGE_FILTER= |
| 875 | else |
| 876 | IMAGE_FILTER=$val |
| 877 | fi |
| 878 | DO_SETUP=yes |
| 879 | ;; |
| 880 | |
| 881 | -V|--verbose) |
| 882 | if test -z "$val"; then |
| 883 | VERBOSE="all" |
| 884 | else |
| 885 | VERBOSE=$val |
| 886 | fi |
| 887 | ;; |
| 888 | |
| 889 | -l|--list-events) |
| 890 | EXCLUSIVE_ARGC=`expr $EXCLUSIVE_ARGC + 1` |
| 891 | EXCLUSIVE_ARGV="$arg" |
| 892 | exec $OPHELP |
| 893 | ;; |
| 894 | |
| 895 | *) |
| 896 | echo "Unknown option \"$arg\". See opcontrol --help" >&2 |
| 897 | exit 1 |
| 898 | ;; |
| 899 | esac |
| 900 | done |
| 901 | |
| 902 | normalise_events |
| 903 | verify_counters |
| 904 | |
| 905 | # error checking to make sure options make sense |
| 906 | if test "$EXCLUSIVE_ARGC" -gt 1; then |
| 907 | echo "Option \"$EXCLUSIVE_ARGV\" not valid with other options." >&2 |
| 908 | exit 1 |
| 909 | fi |
| 910 | |
| 911 | if test "$SETUP" = "yes" -a "$DO_SETUP" != "yes"; then |
| 912 | echo "No options specified for --setup." >&2 |
| 913 | exit 1 |
| 914 | fi |
| 915 | |
| 916 | if test -n "$VERBOSE"; then |
| 917 | if test "$START" != "yes" -a "$START_DAEMON" != "yes"; then |
| 918 | echo "Option --verbose may only be used with --start or --start-daemon" >&2 |
| 919 | exit 1 |
| 920 | fi |
| 921 | fi |
| 922 | |
| 923 | if test "$DO_SETUP" = "yes"; then |
| 924 | SETUP="$DO_SETUP" |
| 925 | fi |
| 926 | |
| 927 | if test "$EXCLUSIVE_ARGC" -eq 1 -a "$SETUP" = "yes"; then |
| 928 | if test "$EXCLUSIVE_ARGV" != "--start-daemon" -a "$EXCLUSIVE_ARGV" != "--start"; then |
| 929 | echo "Option \"--setup\" not valid with \"$EXCLUSIVE_ARGV\"." >&2 |
| 930 | exit 1 |
| 931 | fi |
| 932 | fi |
| 933 | |
| 934 | vecho "Parameters used:" |
| 935 | vecho "SESSION_DIR $SESSION_DIR" |
| 936 | vecho "LOCK_FILE $LOCK_FILE" |
| 937 | vecho "SAMPLES_DIR $SAMPLES_DIR" |
| 938 | vecho "CURRENT_SAMPLES_DIR $CURRENT_SAMPLES_DIR" |
| 939 | vecho "CPUTYPE $CPUTYPE" |
| 940 | if test "$BUF_SIZE" != "0"; then |
| 941 | vecho "BUF_SIZE $BUF_SIZE" |
| 942 | else |
| 943 | vecho "BUF_SIZE default value" |
| 944 | fi |
| 945 | if test "$BUF_WATERSHED" != "0"; then |
| 946 | vecho "BUF_WATERSHED $BUF_WATERSHED" |
| 947 | else |
| 948 | vecho "BUF_WATERSHED default value" |
| 949 | fi |
| 950 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 951 | if test "$CPU_BUF_SIZE" != "0"; then |
| 952 | vecho "CPU_BUF_SIZE $CPU_BUF_SIZE" |
| 953 | else |
| 954 | vecho "CPU_BUF_SIZE default value" |
| 955 | fi |
| 956 | fi |
| 957 | |
| 958 | vecho "SEPARATE_LIB $SEPARATE_LIB" |
| 959 | vecho "SEPARATE_KERNEL $SEPARATE_KERNEL" |
| 960 | vecho "SEPARATE_THREAD $SEPARATE_THREAD" |
| 961 | vecho "SEPARATE_CPU $SEPARATE_CPU" |
| 962 | vecho "CALLGRAPH $CALLGRAPH" |
| 963 | vecho "VMLINUX $VMLINUX" |
| 964 | vecho "KERNEL_RANGE $KERNEL_RANGE" |
| 965 | vecho "XENIMAGE $XENIMAGE" |
| 966 | vecho "XEN_RANGE $XEN_RANGE" |
| 967 | } |
| 968 | |
| 969 | |
| 970 | # stop any existing daemon |
| 971 | do_stop() |
| 972 | { |
| 973 | if test ! -f "$LOCK_FILE"; then |
| 974 | echo "Daemon not running" >&2 |
| 975 | return |
| 976 | fi |
| 977 | |
| 978 | kill -0 `cat $LOCK_FILE` 2>/dev/null |
| 979 | if test "$?" -ne 0; then |
| 980 | echo "Detected stale lock file. Removing." >&2 |
| 981 | rm -f "$LOCK_FILE" |
| 982 | return |
| 983 | fi |
| 984 | |
| 985 | if test $KERNEL_SUPPORT = "yes" \ |
| 986 | && test 0 != $(cat /dev/oprofile/enable); then |
| 987 | echo "Stopping profiling." |
| 988 | echo 0 >/dev/oprofile/enable |
| 989 | fi |
| 990 | kill -USR2 `cat $LOCK_FILE` 2>/dev/null |
| 991 | } |
| 992 | |
| 993 | |
| 994 | # kill the daemon process(es) |
| 995 | do_kill_daemon() |
| 996 | { |
| 997 | if test ! -f "$LOCK_FILE"; then |
| 998 | # no error message, do_kill_daemon imply stop and stop already |
| 999 | # output "Daemon not running" |
| 1000 | return |
| 1001 | fi |
| 1002 | |
| 1003 | kill -0 `cat $LOCK_FILE` 2>/dev/null |
| 1004 | if test "$?" -ne 0; then |
| 1005 | echo "Detected stale lock file. Removing." >&2 |
| 1006 | rm -f "$LOCK_FILE" |
| 1007 | return |
| 1008 | fi |
| 1009 | |
| 1010 | echo "Killing daemon." |
| 1011 | |
| 1012 | if test $KERNEL_SUPPORT = "yes"; then |
| 1013 | kill -TERM `cat $LOCK_FILE` |
| 1014 | else |
| 1015 | echo 1 >/proc/sys/dev/oprofile/dump_stop |
| 1016 | fi |
| 1017 | |
| 1018 | COUNT=0 |
| 1019 | while test -n "`pidof oprofiled`" |
| 1020 | do |
| 1021 | sleep 1 |
| 1022 | |
| 1023 | # because oprofiled only sets a variable inside the |
| 1024 | # signal handler itself, it's possible to miss a |
| 1025 | # signal just before it goes to sleep waiting for |
| 1026 | # data from the kernel that never arrives. So we |
| 1027 | # remind it it needs to die - this works because |
| 1028 | # the signal will bring oprofiled out of the kernel |
| 1029 | # back into userspace |
| 1030 | if test $KERNEL_SUPPORT = "yes"; then |
| 1031 | pid=`cat $LOCK_FILE 2>/dev/null` |
| 1032 | kill -TERM "$pid" 2>/dev/null |
| 1033 | fi |
| 1034 | |
| 1035 | COUNT=`expr $COUNT + 1` |
| 1036 | |
| 1037 | # IBS can generate a large number of samples/events. |
| 1038 | # Therefore, extend the delay before killing |
| 1039 | if test "$IBS_FETCH_COUNT" != "0" \ |
| 1040 | -o "$IBS_OP_COUNT" != "0" ; then |
| 1041 | DELAY_KILL=60 |
| 1042 | else |
| 1043 | DELAY_KILL=15 |
| 1044 | fi |
| 1045 | if test "$COUNT" -eq "$DELAY_KILL"; then |
| 1046 | echo "Daemon stuck shutting down; killing !" |
| 1047 | kill -9 `cat $LOCK_FILE` |
| 1048 | fi |
| 1049 | done |
| 1050 | sleep 1 |
| 1051 | # already removed unless we forced the kill |
| 1052 | rm -f "$SESSION_DIR/lock" |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1053 | } |
| 1054 | |
| 1055 | |
| 1056 | rm_devices_24() |
| 1057 | { |
| 1058 | rm_device "$DEVICE_FILE" |
| 1059 | rm_device "$NOTE_DEVICE_FILE" |
| 1060 | rm_device "$HASH_MAP_DEVICE_FILE" |
| 1061 | } |
| 1062 | |
| 1063 | |
| 1064 | create_devices_24() |
| 1065 | { |
| 1066 | MAJOR_NR=`grep oprof /proc/devices | awk '{print $1}'` |
| 1067 | |
| 1068 | create_device $DEVICE_FILE $MAJOR_NR 0 |
| 1069 | create_device $NOTE_DEVICE_FILE $MAJOR_NR 2 |
| 1070 | create_device $HASH_MAP_DEVICE_FILE $MAJOR_NR 1 |
| 1071 | } |
| 1072 | |
| 1073 | # create jitdump directory and remove any old files from |
| 1074 | # a previous run |
| 1075 | prep_jitdump() { |
| 1076 | local dumpdir=$SESSION_DIR/jitdump |
| 1077 | test -d $dumpdir || { |
| 1078 | mkdir -p $dumpdir; |
| 1079 | chmod 777 $dumpdir; |
| 1080 | return; |
| 1081 | } |
| 1082 | # VMs may already be running when profiling is started, so |
| 1083 | # remove only dump files that are not in use |
| 1084 | for I in $dumpdir/*; do |
| 1085 | test -f $I || continue; |
| 1086 | local pid=`basename $I .dump`; |
| 1087 | if test -d /proc/$pid; then |
| 1088 | local files=`find /proc/$pid/fd -lname $I`; |
| 1089 | test -n "$files" && continue; |
| 1090 | fi |
| 1091 | rm -f $I; |
| 1092 | done |
| 1093 | } |
| 1094 | |
| 1095 | # setup and start module |
| 1096 | do_setup() |
| 1097 | { |
| 1098 | create_dir "$SESSION_DIR" |
| 1099 | |
| 1100 | if test "$KERNEL_SUPPORT" != "yes"; then |
| 1101 | rm_devices_24 |
| 1102 | create_devices_24 |
| 1103 | fi |
| 1104 | |
| 1105 | create_dir "$CURRENT_SAMPLES_DIR" |
| 1106 | |
| 1107 | prep_jitdump; |
| 1108 | } |
| 1109 | |
| 1110 | |
| 1111 | # set a sysctl/oprofilefs parameter |
| 1112 | set_param() |
| 1113 | { |
| 1114 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 1115 | echo $2 >$MOUNT/$1 |
| 1116 | else |
| 1117 | $SYSCTL -w dev.oprofile.$1=$2 |
| 1118 | fi |
| 1119 | } |
| 1120 | |
| 1121 | |
| 1122 | # set a sysctl/oprofilefs counter parameter |
| 1123 | set_ctr_param() |
| 1124 | { |
| 1125 | # no such thing for perfmon |
| 1126 | if test "$IS_PERFMON" = "yes"; then |
| 1127 | return |
| 1128 | fi |
| 1129 | |
| 1130 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 1131 | if test -e $MOUNT/$1; then |
| 1132 | echo $3 >$MOUNT/$1/$2 |
| 1133 | else |
| 1134 | echo -n "Error: counter $1 not available" |
| 1135 | if test -e /proc/sys/kernel/nmi_watchdog; then |
| 1136 | echo " nmi_watchdog using this resource ? Try:" |
| 1137 | echo "opcontrol --deinit" |
| 1138 | echo "echo 0 > /proc/sys/kernel/nmi_watchdog" |
| 1139 | fi |
| 1140 | exit 1 |
| 1141 | fi |
| 1142 | else |
| 1143 | $SYSCTL -w dev.oprofile.$1.$2=$3 |
| 1144 | fi |
| 1145 | } |
| 1146 | |
| 1147 | |
| 1148 | # returns 1 if $CPUTYPE is a PPC64 variant |
| 1149 | is_non_cell_ppc64_variant() |
| 1150 | { |
| 1151 | case "$1" in |
| 1152 | ppc64/*) |
| 1153 | tmp="${1/cell/CELL}" |
| 1154 | if test "$1" = "$tmp"; then |
| 1155 | #No substituion occurred, so cputype is not cell |
| 1156 | return 1 |
| 1157 | else |
| 1158 | return 0 |
| 1159 | fi |
| 1160 | ;; |
| 1161 | *) |
| 1162 | return 0; |
| 1163 | ;; |
| 1164 | esac |
| 1165 | } |
| 1166 | |
| 1167 | |
| 1168 | # The check_event_mapping_data procedure gives the |
| 1169 | # opportunity to validate events and enforce any |
| 1170 | # arch-specific restritions, etc. |
| 1171 | check_event_mapping_data() |
| 1172 | { |
| 1173 | |
| 1174 | is_non_cell_ppc64_variant $CPUTYPE |
| 1175 | if test $? -ne 0 ; then |
| 1176 | # For PPC64 architectures, the values required to program |
| 1177 | # MMCRs for the given event are returned along with the event. |
| 1178 | # Here we use those values to ensure that all chosen events |
| 1179 | # are from the same group. |
| 1180 | MMCR0=`echo $EVENT_STR | awk '{print $2}'` |
| 1181 | MMCR1=`echo $EVENT_STR | awk '{print $3}'` |
| 1182 | MMCRA=`echo $EVENT_STR | awk '{print $4}'` |
| 1183 | MMCR0_VAL=`echo $MMCR0 | awk -F: '{print $2}'` |
| 1184 | MMCR1_VAL=`echo $MMCR1 | awk -F: '{print $2}'` |
| 1185 | MMCRA_VAL=`echo $MMCRA | awk -F: '{print $2}'` |
| 1186 | |
| 1187 | ## mmcr0, mmcr1, mmcra are for all ppc64 counters |
| 1188 | # Save first event mmcr settings to compare with additional |
| 1189 | # events. All events must have the same mmcrx values i.e. be in |
| 1190 | # the same group. Only one event is assigned per counter, |
| 1191 | # hence there will not be a conflict on the counters |
| 1192 | if [ "$MMCR0_CK_VAL" = "" ] ; then |
| 1193 | MMCR0_CK_VAL=$MMCR0_VAL |
| 1194 | MMCR1_CK_VAL=$MMCR1_VAL |
| 1195 | MMCRA_CK_VAL=$MMCRA_VAL |
| 1196 | else |
| 1197 | # make sure all events are from the same group |
| 1198 | if test $MMCR0_CK_VAL != $MMCR0_VAL \ |
| 1199 | -o $MMCR1_CK_VAL != $MMCR1_VAL \ |
| 1200 | -o $MMCRA_CK_VAL != $MMCRA_VAL ; then |
| 1201 | echo "ERROR: The specified events are not from the same group." |
| 1202 | echo " Use 'opcontrol --list-events' to see event groupings." |
| 1203 | exit 1 |
| 1204 | fi |
| 1205 | fi |
| 1206 | |
| 1207 | # Check if all user/kernel flags per-counter are matching. |
| 1208 | if [ "$USER_CK" = "" ] ; then |
| 1209 | USER_CK=$USER |
| 1210 | KERNEL_CK=$KERNEL |
| 1211 | else |
| 1212 | if test $USER_CK != $USER \ |
| 1213 | -o $KERNEL_CK != $KERNEL ; then |
| 1214 | echo "ERROR: All kernel/user event flags must match." |
| 1215 | exit 1 |
| 1216 | fi |
| 1217 | fi |
| 1218 | fi |
| 1219 | if [ "$CPUTYPE" = "ppc64/cell-be" ]; then |
| 1220 | event_num=`echo $EVENT_STR | awk '{print $1}'` |
| 1221 | # PPU event and cycle events can be measured at |
| 1222 | # the same time. SPU event can not be measured |
| 1223 | # at the same time as any other event. Similarly for |
| 1224 | # SPU Cycles |
| 1225 | |
| 1226 | # We use EVNT_MSK to track what events have already |
| 1227 | # been seen. Valid values are: |
| 1228 | # NULL string - no events seen yet |
| 1229 | # 1 - PPU CYCLES or PPU Event seen |
| 1230 | # 2 - SPU CYCLES seen |
| 1231 | # 3 - SPU EVENT seen |
| 1232 | |
| 1233 | # check if event is PPU_CYCLES |
| 1234 | if [ "$event_num" = "1" ]; then |
| 1235 | if [ "$EVNT_MSK" = "1" ] || [ "$EVNT_MSK" = "" ]; then |
| 1236 | EVNT_MSK=1 |
| 1237 | else |
| 1238 | echo "PPU CYCLES not compatible with previously specified event" |
| 1239 | exit 1 |
| 1240 | fi |
| 1241 | |
| 1242 | # check if event is SPU_CYCLES |
| 1243 | elif [ "$event_num" = "2" ]; then |
| 1244 | if [ "$EVNT_MSK" = "" ]; then |
| 1245 | EVNT_MSK=2 |
| 1246 | else |
| 1247 | echo "SPU CYCLES not compatible with any other event" |
| 1248 | exit 1 |
| 1249 | fi |
| 1250 | |
| 1251 | # check if event is SPU Event profiling |
| 1252 | elif [ "$event_num" -ge "4100" ] && [ "$event_num" -le "4163" ] ; then |
| 1253 | if [ "$EVNT_MSK" = "" ]; then |
| 1254 | EVNT_MSK=3 |
| 1255 | else |
| 1256 | echo "SPU event profiling not compatible with any other event" |
| 1257 | exit 1 |
| 1258 | fi |
| 1259 | |
| 1260 | # Check to see that the kernel supports SPU event |
| 1261 | # profiling. Note, if the file exits it should have |
| 1262 | # the LSB bit set to 1 indicating SPU event profiling |
| 1263 | # support. For now, it is sufficient to test that the |
| 1264 | # file exists. |
| 1265 | if test ! -f /dev/oprofile/cell_support; then |
| 1266 | echo "Kernel does not support SPU event profiling" |
| 1267 | exit 1 |
| 1268 | fi |
| 1269 | |
| 1270 | # check if event is PPU Event profiling (all other |
| 1271 | # events are PPU events) |
| 1272 | else |
| 1273 | if [ "$EVNT_MSK" = "1" ] || [ "$EVNT_MSK" = "" ]; then |
| 1274 | EVNT_MSK=1 |
| 1275 | else |
| 1276 | echo "PPU profiling not compatible with previously specified event" |
| 1277 | exit 1 |
| 1278 | fi |
| 1279 | fi |
| 1280 | fi |
| 1281 | len=`echo -n $event_num | wc -m` |
| 1282 | num_chars_in_grpid=`expr $len - 2` |
| 1283 | GRP_NUM_VAL=`echo | awk '{print substr("'"${event_num}"'",1,"'"${num_chars_in_grpid}"'")}'` |
| 1284 | if [ "$GRP_NUM_CK_VAL" = "" ] ; then |
| 1285 | GRP_NUM_CK_VAL=$GRP_NUM_VAL |
| 1286 | else |
| 1287 | if test $GRP_NUM_CK_VAL != $GRP_NUM_VAL ; then |
| 1288 | echo "ERROR: The specified events are not from the same group." >&2 |
| 1289 | echo " Use 'opcontrol --list-events' to see event groupings." >&2 |
| 1290 | exit 1 |
| 1291 | fi |
| 1292 | fi |
| 1293 | } |
| 1294 | |
| 1295 | |
| 1296 | do_param_setup() |
| 1297 | { |
| 1298 | # different names |
| 1299 | if test $BUF_SIZE != 0; then |
| 1300 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 1301 | echo $BUF_SIZE >$MOUNT/buffer_size |
| 1302 | else |
| 1303 | $SYSCTL -w dev.oprofile.bufsize=$BUF_SIZE |
| 1304 | fi |
| 1305 | fi |
| 1306 | |
| 1307 | if test $BUF_WATERSHED != 0; then |
| 1308 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 1309 | echo $BUF_WATERSHED >$MOUNT/buffer_watershed |
| 1310 | else |
| 1311 | echo "buffer-watershed not supported - ignored" >&2 |
| 1312 | fi |
| 1313 | fi |
| 1314 | |
| 1315 | if test $CPU_BUF_SIZE != 0; then |
| 1316 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 1317 | echo $CPU_BUF_SIZE >$MOUNT/cpu_buffer_size |
| 1318 | else |
| 1319 | echo "cpu-buffer-size not supported - ignored" >&2 |
| 1320 | fi |
| 1321 | fi |
| 1322 | |
| 1323 | if test -n "$ACTIVE_DOMAINS"; then |
| 1324 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 1325 | echo $ACTIVE_DOMAINS >$MOUNT/active_domains |
| 1326 | else |
| 1327 | echo "active-domains not supported - ignored" >&2 |
| 1328 | fi |
| 1329 | fi |
| 1330 | |
| 1331 | if test $NOTE_SIZE != 0; then |
| 1332 | set_param notesize $NOTE_SIZE |
| 1333 | fi |
| 1334 | |
| 1335 | if test "$KERNEL_SUPPORT" = "yes" -a -f $MOUNT/backtrace_depth; then |
| 1336 | set_param backtrace_depth $CALLGRAPH |
| 1337 | elif test "$CALLGRAPH" != "0"; then |
| 1338 | echo "Call-graph profiling not supported - ignored" >&2 |
| 1339 | fi |
| 1340 | |
| 1341 | if test "$IS_TIMER" = 1; then |
| 1342 | return |
| 1343 | fi |
| 1344 | |
| 1345 | # use the default setup if none set |
| 1346 | if test "$NR_CHOSEN" = 0; then |
| 1347 | set_event 0 $DEFAULT_EVENT |
| 1348 | NR_CHOSEN=1 |
| 1349 | HW_CTRS=`$OPHELP --check-events $DEFAULT_EVENT --callgraph=$CALLGRAPH` |
| 1350 | echo "Using default event: $DEFAULT_EVENT" |
| 1351 | fi |
| 1352 | |
| 1353 | # Necessary in this case : |
| 1354 | # opcontrol ctr0-on ctr1-on then opcontrol ctr0-on |
| 1355 | for f in $OP_COUNTERS ; do |
| 1356 | set_ctr_param $f enabled 0 |
| 1357 | set_ctr_param $f event 0 |
| 1358 | set_ctr_param $f count 0 |
| 1359 | done |
| 1360 | |
| 1361 | # Check if driver has IBS support |
| 1362 | if test -d $MOUNT/ibs_fetch; then |
| 1363 | # Reset driver's IBS fetch setting |
| 1364 | set_param ibs_fetch/enable 0 |
| 1365 | fi |
| 1366 | |
| 1367 | if test -d $MOUNT/ibs_op ; then |
| 1368 | # Reset driver's IBS op setting |
| 1369 | set_param ibs_op/enable 0 |
| 1370 | fi |
| 1371 | |
| 1372 | verify_counters |
| 1373 | |
| 1374 | OPROFILED_EVENTS= |
| 1375 | for f in `seq 0 $((NR_CHOSEN - 1))`; do |
| 1376 | get_event $f |
| 1377 | if test "$GOTEVENT" != ""; then |
| 1378 | EVENT=`echo $GOTEVENT | awk -F: '{print $1}'` |
| 1379 | EVENT_STR=`$OPHELP $EVENT` |
| 1380 | EVENT_VAL=`echo $EVENT_STR | awk '{print $1}'` |
| 1381 | COUNT=`echo $GOTEVENT | awk -F: '{print $2}'` |
| 1382 | UNIT_MASK=`echo $GOTEVENT | awk -F: '{print $3}'` |
| 1383 | KERNEL=`echo $GOTEVENT | awk -F: '{print $4}'` |
| 1384 | USER=`echo $GOTEVENT | awk -F: '{print $5}'` |
| 1385 | CTR=`echo $HW_CTRS | awk "{print \\$$((f + 1))}"` |
| 1386 | check_event_mapping_data |
| 1387 | |
| 1388 | if test "$EVENT" = "SPU_CYCLES"; then |
| 1389 | if test "$SEPARATE_KERNEL" = "1"; then |
| 1390 | SEPARATE_KERNEL=0 |
| 1391 | echo "Ignoring --separate=kernel option with SPU_CYCLES" |
| 1392 | fi |
| 1393 | if test "$SEPARATE_LIB" = "0"; then |
| 1394 | SEPARATE_LIB=1 |
| 1395 | echo "Forcing required option --separate=lib with SPU_CYCLES" |
| 1396 | fi |
| 1397 | |
| 1398 | # It is possible for a single application to be |
| 1399 | # running on all SPUs simultaneously. Without |
| 1400 | # SEPARATE_CPU, the resulting sample data would |
| 1401 | # consist of a single sample file. If all SPUs |
| 1402 | # were truly running the same code, the merging |
| 1403 | # of sample data would be fine. However, an |
| 1404 | # application file may have multiple SPU images |
| 1405 | # embedded within it, resulting in different |
| 1406 | # code running on different SPUs. Therefore, |
| 1407 | # we force SEPARATE_CPU in order to properly |
| 1408 | # handle this case. |
| 1409 | if test "$SEPARATE_CPU" = "0"; then |
| 1410 | SEPARATE_CPU=1 |
| 1411 | echo "Forcing required option --separate=cpu with SPU_CYCLES" |
| 1412 | |
| 1413 | fi |
| 1414 | fi |
| 1415 | |
| 1416 | if [ "$CTR" = "ibs_fetch" -o "$CTR" = "ibs_op" ] ; then |
| 1417 | # Handle IBS events setup |
| 1418 | do_param_setup_ibs |
| 1419 | continue |
| 1420 | fi |
| 1421 | |
| 1422 | if test "$EVENT" = "RTC_INTERRUPTS"; then |
| 1423 | set_param rtc_value $COUNT |
| 1424 | $SYSCTL -w dev.oprofile.rtc_value=$COUNT |
| 1425 | else |
| 1426 | set_ctr_param $CTR enabled 1 |
| 1427 | set_ctr_param $CTR event $EVENT_VAL |
| 1428 | loop_count=1 |
| 1429 | for i in ${EVENT_STR}; do |
| 1430 | #Skip first argument of EVENT_STR (event val) since we've already |
| 1431 | #processed that value. |
| 1432 | if test "$loop_count" -gt 1; then |
| 1433 | KEY=`echo $i | awk -F: '{print $1}'` |
| 1434 | VAL=`echo $i | awk -F: '{print $2}'` |
| 1435 | set_ctr_param "" $KEY $VAL |
| 1436 | fi |
| 1437 | loop_count=$((loop_count+1)) |
| 1438 | done |
| 1439 | set_ctr_param $CTR count $COUNT |
| 1440 | set_ctr_param $CTR kernel $KERNEL |
| 1441 | set_ctr_param $CTR user $USER |
| 1442 | set_ctr_param $CTR unit_mask $UNIT_MASK |
| 1443 | fi |
| 1444 | OPROFILED_EVENTS=${OPROFILED_EVENTS}$EVENT:$EVENT_VAL: |
| 1445 | OPROFILED_EVENTS=${OPROFILED_EVENTS}$CTR:$COUNT:$UNIT_MASK: |
| 1446 | OPROFILED_EVENTS=${OPROFILED_EVENTS}$KERNEL:$USER, |
| 1447 | fi |
| 1448 | done |
| 1449 | |
| 1450 | # For PPC64 architectures we need to set the enable_kernel and |
| 1451 | # enable_user flags for enabling/disabling user/kernel domain |
| 1452 | # profiling. All per-counter user/kernel flags must match. |
| 1453 | # This condition is checked previously by check_event_mapping_data. |
| 1454 | # This statement uses the last event's user/kernel flags to set |
| 1455 | # /dev/oprofile/enable_kernel and /dev/oprofile/enable_user. |
| 1456 | is_non_cell_ppc64_variant $CPUTYPE |
| 1457 | if test $? -ne 0 ; then |
| 1458 | set_param "enable_kernel" $KERNEL |
| 1459 | set_param "enable_user" $USER |
| 1460 | fi |
| 1461 | |
| 1462 | } |
| 1463 | |
| 1464 | |
| 1465 | do_start_daemon() |
| 1466 | { |
| 1467 | |
| 1468 | if test -f "$LOCK_FILE"; then |
| 1469 | kill -0 `cat $LOCK_FILE` 2>/dev/null |
| 1470 | if test "$?" -eq 0; then |
| 1471 | return; |
| 1472 | else |
| 1473 | echo "Detected stale lock file. Removing." >&2 |
| 1474 | rm -f "$LOCK_FILE" |
| 1475 | fi |
| 1476 | fi |
| 1477 | |
| 1478 | do_setup |
| 1479 | check_valid_args |
| 1480 | get_image_range "linux" |
| 1481 | get_image_range "xen" |
| 1482 | do_param_setup |
| 1483 | |
| 1484 | OPD_ARGS=" \ |
| 1485 | --session-dir=$SESSION_DIR \ |
| 1486 | --separate-lib=$SEPARATE_LIB \ |
| 1487 | --separate-kernel=$SEPARATE_KERNEL \ |
| 1488 | --separate-thread=$SEPARATE_THREAD \ |
| 1489 | --separate-cpu=$SEPARATE_CPU" |
| 1490 | |
| 1491 | if test "$IS_TIMER" = 1; then |
| 1492 | OPD_ARGS="$OPD_ARGS --events=" |
| 1493 | else |
| 1494 | if ! test -z "$OPROFILED_EVENTS"; then |
| 1495 | OPD_ARGS="$OPD_ARGS --events=$OPROFILED_EVENTS" |
| 1496 | fi |
| 1497 | fi |
| 1498 | |
| 1499 | if test "$VMLINUX" = "none"; then |
| 1500 | OPD_ARGS="$OPD_ARGS --no-vmlinux" |
| 1501 | else |
| 1502 | OPD_ARGS="$OPD_ARGS --vmlinux=$VMLINUX --kernel-range=$KERNEL_RANGE" |
| 1503 | fi |
| 1504 | |
| 1505 | if ! test "$XENIMAGE" = "none"; then |
| 1506 | OPD_ARGS="$OPD_ARGS --xen-image=$XENIMAGE --xen-range=$XEN_RANGE" |
| 1507 | fi |
| 1508 | |
| 1509 | if ! test -z "$IMAGE_FILTER"; then |
| 1510 | OPD_ARGS="$OPD_ARGS --image=$IMAGE_FILTER" |
| 1511 | fi |
| 1512 | |
| 1513 | if test -n "$VERBOSE"; then |
| 1514 | OPD_ARGS="$OPD_ARGS --verbose=$VERBOSE" |
| 1515 | fi |
| 1516 | |
| 1517 | help_start_daemon_with_ibs |
| 1518 | |
| 1519 | vecho "executing oprofiled $OPD_ARGS" |
| 1520 | |
| 1521 | $OPROFILED $OPD_ARGS |
| 1522 | |
| 1523 | COUNT=0 |
| 1524 | while ! test -f "$SESSION_DIR/lock" |
| 1525 | do |
| 1526 | sleep 1 |
| 1527 | COUNT=`expr $COUNT + 1` |
| 1528 | if test "$COUNT" -eq 10; then |
| 1529 | echo "Couldn't start oprofiled." >&2 |
| 1530 | echo "Check the log file \"$LOG_FILE\" and kernel syslog" >&2 |
| 1531 | exit 1 |
| 1532 | fi |
| 1533 | done |
| 1534 | |
| 1535 | echo "Daemon started." |
| 1536 | } |
| 1537 | |
| 1538 | do_start() |
| 1539 | { |
| 1540 | prep_jitdump; |
| 1541 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 1542 | echo 1 >$MOUNT/enable |
| 1543 | fi |
| 1544 | kill -USR1 `cat $LOCK_FILE` 2>/dev/null |
| 1545 | echo "Profiler running." |
| 1546 | } |
| 1547 | |
| 1548 | |
| 1549 | # print status |
| 1550 | do_status() |
| 1551 | { |
| 1552 | OPROFILED_PID=`cat $SESSION_DIR/lock 2>/dev/null` |
| 1553 | if test -n "$OPROFILED_PID" -a -d "/proc/$OPROFILED_PID"; then |
| 1554 | echo "Daemon running: pid $OPROFILED_PID" |
| 1555 | else |
| 1556 | echo "Daemon not running" |
| 1557 | fi |
| 1558 | |
| 1559 | if test "$NR_CHOSEN" != "0"; then |
| 1560 | for f in `seq 0 $((NR_CHOSEN - 1))`; do |
| 1561 | get_event $f |
| 1562 | echo "Event $f: $GOTEVENT" |
| 1563 | done |
| 1564 | fi |
| 1565 | |
| 1566 | SEPARATE="" |
| 1567 | if test "$SEPARATE_LIB" = "1"; then |
| 1568 | SEPARATE="library"; |
| 1569 | fi |
| 1570 | if test "$SEPARATE_KERNEL" = "1"; then |
| 1571 | SEPARATE="$SEPARATE kernel"; |
| 1572 | fi |
| 1573 | if test "$SEPARATE_THREAD" = "1"; then |
| 1574 | SEPARATE="$SEPARATE thread"; |
| 1575 | fi |
| 1576 | if test "$SEPARATE_CPU" = "1"; then |
| 1577 | SEPARATE="$SEPARATE cpu"; |
| 1578 | fi |
| 1579 | |
| 1580 | if test -z "$SEPARATE"; then |
| 1581 | SEPARATE=none |
| 1582 | fi |
| 1583 | |
| 1584 | echo "Separate options: $SEPARATE" |
| 1585 | echo "vmlinux file: $VMLINUX" |
| 1586 | |
| 1587 | if test -z "$IMAGE_FILTER"; then |
| 1588 | echo "Image filter: none" |
| 1589 | else |
| 1590 | echo "Image filter: $IMAGE_FILTER" |
| 1591 | fi |
| 1592 | |
| 1593 | echo "Call-graph depth: $CALLGRAPH" |
| 1594 | if test "$BUF_SIZE" != "0"; then |
| 1595 | echo "Buffer size: $BUF_SIZE" |
| 1596 | fi |
| 1597 | if test "$KERNEL_SUPPORT" != "yes"; then |
| 1598 | if test "$NOTE_SIZE" != "0"; then |
| 1599 | echo "Note buffer size: $NOTE_SIZE" |
| 1600 | fi |
| 1601 | else |
| 1602 | if test "$BUF_WATERSHED" != "0"; then |
| 1603 | echo "CPU buffer watershed: $BUF_WATERSHED" |
| 1604 | fi |
| 1605 | if test "$CPU_BUF_SIZE" != "0"; then |
| 1606 | echo "CPU buffer size: $CPU_BUF_SIZE" |
| 1607 | fi |
| 1608 | fi |
| 1609 | |
| 1610 | exit 0 |
| 1611 | } |
| 1612 | |
| 1613 | |
| 1614 | # do_dump_data |
| 1615 | # returns 0 if successful |
| 1616 | # returns 1 if the daemon is unable to dump data |
| 1617 | # exit 1 if we need to be root to dump |
| 1618 | do_dump_data() |
| 1619 | { |
| 1620 | # make sure that the daemon is not dead and gone |
| 1621 | if test -e "$SESSION_DIR/lock"; then |
| 1622 | OPROFILED_PID=`cat $SESSION_DIR/lock` |
| 1623 | if test ! -d "/proc/$OPROFILED_PID"; then |
| 1624 | echo "dump fail: daemon died during last run ?" >&2 |
| 1625 | return 1; |
| 1626 | fi |
| 1627 | else |
| 1628 | return 1; |
| 1629 | fi |
| 1630 | |
| 1631 | if test "$KERNEL_SUPPORT" = "yes"; then |
| 1632 | if ! test -w $MOUNT/dump; then |
| 1633 | if test `id -u` != "0"; then |
| 1634 | echo "You must be root to dump with this kernel version" |
| 1635 | exit 1 |
| 1636 | fi |
| 1637 | fi |
| 1638 | # trigger oprofiled to execute opjitconv |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 1639 | echo do_jitconv >> $SESSION_DIR/opd_pipe |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1640 | rm -f "$SESSION_DIR/complete_dump" |
| 1641 | echo 1 > $MOUNT/dump |
| 1642 | # loop until the complete_dump file is created to |
| 1643 | # signal that the dump has been completed |
| 1644 | while [ \( ! -e "$SESSION_DIR/complete_dump" \) ] |
| 1645 | do |
| 1646 | if test ! -d "/proc/$OPROFILED_PID"; then |
| 1647 | echo "dump fail: either daemon died during last run or dies during dump" >&2 |
| 1648 | return 1 |
| 1649 | fi |
| 1650 | sleep 1; |
| 1651 | done |
| 1652 | else |
| 1653 | echo 1 > $MOUNT/dump |
| 1654 | # HACK ! |
| 1655 | sleep 2 |
| 1656 | fi |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 1657 | cp -r /dev/oprofile/stats "$SAMPLES_DIR/current" |
| 1658 | |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1659 | return 0; |
| 1660 | } |
| 1661 | |
| 1662 | |
| 1663 | # do_dump |
| 1664 | # returns 0 if successful |
| 1665 | # exits if unsuccessful |
| 1666 | do_dump() |
| 1667 | { |
| 1668 | do_dump_data |
| 1669 | if test $? -ne 0 -a "$ONLY_DUMP" = "yes"; then |
| 1670 | echo "Unable to complete dump of oprofile data: is the oprofile daemon running?" >& 2 |
| 1671 | exit 1; |
| 1672 | fi |
| 1673 | return 0; |
| 1674 | } |
| 1675 | |
| 1676 | # tell daemon to re-open the sample files |
| 1677 | hup_daemon() |
| 1678 | { |
| 1679 | if test -f "$LOCK_FILE"; then |
| 1680 | echo -n "Signalling daemon... " |
| 1681 | kill -HUP `cat $LOCK_FILE` |
| 1682 | echo "done" |
| 1683 | fi |
| 1684 | } |
| 1685 | |
| 1686 | |
| 1687 | # move all the sample files to a sample directory |
| 1688 | do_save_session() |
| 1689 | { |
| 1690 | SAVE_DIR="${SAMPLES_DIR}/${SAVE_NAME}" |
| 1691 | |
| 1692 | if test -e "$SAVE_DIR"; then |
| 1693 | echo "session $SAVE_DIR already exists" >&2 |
| 1694 | exit 1 |
| 1695 | fi |
| 1696 | |
| 1697 | if ! test -e $CURRENT_SAMPLES_DIR; then |
| 1698 | echo "$CURRENT_SAMPLES_DIR doesn't exist: nothing to save" >&2 |
| 1699 | exit 0 |
| 1700 | fi |
| 1701 | |
| 1702 | # FIXME: I don't think it's worth checking for empty current directory |
| 1703 | |
| 1704 | mv $CURRENT_SAMPLES_DIR $SAVE_DIR |
| 1705 | if test "$?" != "0"; then |
| 1706 | echo "Couldn't move $CURRENT_SAMPLES_DIR to $SAVE_DIR" >&2 |
| 1707 | exit 1 |
| 1708 | fi |
| 1709 | |
| 1710 | hup_daemon |
| 1711 | } |
| 1712 | |
| 1713 | |
| 1714 | # remove all the sample files |
| 1715 | do_reset() |
| 1716 | { |
| 1717 | if test -z "$SAMPLES_DIR"; then |
| 1718 | echo "opcontrol:do_reset() SAMPLES_DIR is empty!" |
| 1719 | exit 1; |
| 1720 | fi |
| 1721 | |
| 1722 | # daemon use {kern} and {root} subdir, it's not a typo to not use ${} |
| 1723 | move_and_remove $SAMPLES_DIR/current/{kern} |
| 1724 | move_and_remove $SAMPLES_DIR/current/{root} |
| 1725 | move_and_remove $SAMPLES_DIR/current/stats |
| 1726 | |
| 1727 | # clear temp directory for jitted code |
| 1728 | prep_jitdump; |
| 1729 | |
| 1730 | hup_daemon |
| 1731 | } |
| 1732 | |
| 1733 | |
| 1734 | do_deinit() |
| 1735 | { |
| 1736 | # unmount /dev/oprofile if it is mounted |
| 1737 | OPROF_FS=`grep /dev/oprofile /etc/mtab` |
| 1738 | if test -n "$OPROF_FS"; then |
| 1739 | umount /dev/oprofile |
| 1740 | fi |
| 1741 | # unload the oprofile module if it is around |
| 1742 | OPROF_MOD=`lsmod | grep oprofile` |
| 1743 | if test -n "$OPROF_MOD"; then |
| 1744 | echo "Unloading oprofile module" >& 2 |
| 1745 | rmmod oprofile |
| 1746 | fi |
| 1747 | } |
| 1748 | |
| 1749 | |
| 1750 | # The function that calls the appropriate operations |
| 1751 | do_operations() |
| 1752 | { |
| 1753 | # INIT always done by load_module to get access to cputype |
| 1754 | # thus INIT is a noop |
| 1755 | |
| 1756 | if test "$STATUS" = "yes"; then |
| 1757 | do_status |
| 1758 | fi |
| 1759 | |
| 1760 | if test "$SETUP" = "yes"; then |
| 1761 | check_valid_args |
| 1762 | do_save_setup |
| 1763 | fi |
| 1764 | |
| 1765 | if test "$START_DAEMON" = "yes"; then |
| 1766 | do_start_daemon |
| 1767 | fi |
| 1768 | |
| 1769 | if test "$START" = "yes"; then |
| 1770 | do_start_daemon |
| 1771 | do_start |
| 1772 | fi |
| 1773 | |
| 1774 | if test "$DUMP" = "yes"; then |
| 1775 | do_dump |
| 1776 | fi |
| 1777 | |
| 1778 | if test "$SAVE_SESSION" = "yes"; then |
| 1779 | do_save_session |
| 1780 | fi |
| 1781 | |
| 1782 | if test "$STOP" = "yes"; then |
| 1783 | do_stop |
| 1784 | fi |
| 1785 | |
| 1786 | if test "$KILL_DAEMON" = "yes"; then |
| 1787 | do_kill_daemon |
| 1788 | fi |
| 1789 | |
| 1790 | if test "$RESET" = "yes"; then |
| 1791 | do_reset |
| 1792 | fi |
| 1793 | |
| 1794 | if test "$DEINIT" = "yes"; then |
| 1795 | do_deinit |
| 1796 | fi |
| 1797 | } |
| 1798 | |
| 1799 | # early check for --version, --help and --session-dir |
| 1800 | check_options_early() |
| 1801 | { |
| 1802 | |
| 1803 | OPHELP="$OPDIR/ophelp" |
| 1804 | |
| 1805 | for i in $@; do |
| 1806 | # added to handle arg=val parameters |
| 1807 | arg=`printf %s $i | awk -F= '{print $1}'` |
| 1808 | val=`printf %s $i | awk -F= '{print $2}'` |
| 1809 | case "$arg" in |
| 1810 | -\?|--help) |
| 1811 | do_help |
| 1812 | exit 0 |
| 1813 | ;; |
| 1814 | |
| 1815 | -v|--version) |
| 1816 | echo -n "`basename $0`: " |
| 1817 | $OPHELP --version | cut -d' ' -f2- |
| 1818 | exit 0 |
| 1819 | ;; |
| 1820 | --session-dir) |
| 1821 | error_if_empty $arg $val |
| 1822 | SESSION_DIR="$val" |
| 1823 | DO_SETUP=yes |
| 1824 | # do not exit early |
| 1825 | ;; |
| 1826 | |
| 1827 | esac |
| 1828 | done |
| 1829 | } |
| 1830 | |
| 1831 | |
| 1832 | # determine which module is loaded |
| 1833 | check_version() |
| 1834 | { |
| 1835 | OPROFILE_AVAILABLE=no |
| 1836 | grep oprofilefs /etc/mtab >/dev/null |
| 1837 | if test "$?" -eq 0; then |
| 1838 | # need to have oprofilefs mounted for this to work on 2.6 |
| 1839 | KERNEL_SUPPORT=yes |
| 1840 | OPROFILE_AVAILABLE=yes |
| 1841 | return |
| 1842 | fi |
| 1843 | # need to have /proc/oprof available for this to work on 2.4 |
| 1844 | grep oprof /proc/devices >/dev/null |
| 1845 | if test "$?" -eq 0; then |
| 1846 | KERNEL_SUPPORT=no |
| 1847 | OPROFILE_AVAILABLE=yes |
| 1848 | return |
| 1849 | fi |
| 1850 | } |
| 1851 | |
| 1852 | # error out if the module is not loaded |
| 1853 | check_oprofile_available() |
| 1854 | { |
| 1855 | if test "$OPROFILE_AVAILABLE" != "yes"; then |
| 1856 | echo "Kernel support not available, missing opcontrol --init as root ?" |
| 1857 | exit 1 |
| 1858 | fi |
| 1859 | } |
| 1860 | |
| 1861 | |
| 1862 | try_reset_sample_file() |
| 1863 | { |
| 1864 | # special case to avoid loading the module, it works only if the |
| 1865 | # daemon is not running because --reset imply --dump. Rather to check |
| 1866 | # if the daemon is running we check if the module is loaded because |
| 1867 | # we are only trying to avoid its load, if the check fails we fallback |
| 1868 | # to the normal dump / reset sequence. |
| 1869 | if test -z "$2" -a "$1" = "--reset"; then |
| 1870 | check_version |
| 1871 | if test "$OPROFILE_AVAILABLE" != "yes"; then |
| 1872 | do_init_daemon_vars |
| 1873 | do_reset |
| 1874 | exit 0 |
| 1875 | fi |
| 1876 | fi |
| 1877 | } |
| 1878 | |
| 1879 | # |
| 1880 | # Begin IBS Specific Functions |
| 1881 | # |
| 1882 | verify_ibs() |
| 1883 | { |
| 1884 | IBS_EVENT=`echo $1| awk -F: '{print $1}'` |
| 1885 | IBS_COUNT=`echo $1 | awk -F: '{print $2}'` |
| 1886 | IBS_MASK=`echo $1 | awk -F: '{print $3}'` |
| 1887 | |
| 1888 | IBS_TYPE=`$OPHELP --check-events $1` |
| 1889 | if test "$?" != "0" ; then |
| 1890 | exit 1 |
| 1891 | fi |
| 1892 | |
| 1893 | if [ "$IBS_TYPE" = "ibs_fetch " ] ; then |
| 1894 | # Check IBS_COUNT consistency |
| 1895 | if test "$IBS_FETCH_COUNT" = "0" ; then |
| 1896 | IBS_FETCH_COUNT=$IBS_COUNT |
| 1897 | IBS_FETCH_MASK=$IBS_MASK |
| 1898 | elif test "$IBS_FETCH_COUNT" != "$IBS_COUNT" ; then |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 1899 | echo "ERROR: All IBS Fetch must have the same count." |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1900 | exit 1 |
| 1901 | fi |
| 1902 | |
| 1903 | # Check IBS_MASK consistency |
| 1904 | if test "$IBS_FETCH_MASK" != "$IBS_MASK" ; then |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 1905 | echo "ERROR: All IBS Fetch must have the same unitmask." |
| 1906 | exit 1 |
| 1907 | fi |
| 1908 | |
| 1909 | # Check IBS_FETCH_COUNT within range |
| 1910 | if test "$IBS_FETCH_COUNT" -gt 1048575 ; then |
| 1911 | echo "ERROR: IBS Fetch count is too large." |
| 1912 | echo " The maximum IBS-fetch count is 1048575." |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1913 | exit 1 |
| 1914 | fi |
| 1915 | |
| 1916 | elif [ "$IBS_TYPE" = "ibs_op " ] ; then |
| 1917 | # Check IBS_COUNT consistency |
| 1918 | if test "$IBS_OP_COUNT" = "0" ; then |
| 1919 | IBS_OP_COUNT=$IBS_COUNT |
| 1920 | IBS_OP_MASK=$IBS_MASK |
| 1921 | elif test "$IBS_OP_COUNT" != "$IBS_COUNT" ; then |
| 1922 | echo "All IBS Op must have the same count." |
| 1923 | exit 1 |
| 1924 | fi |
| 1925 | |
| 1926 | # Check IBS_MASK consistency |
| 1927 | if test "$IBS_OP_MASK" != "$IBS_MASK" ; then |
| 1928 | echo "All IBS Op must have the same unitmask." |
| 1929 | exit 1 |
| 1930 | fi |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 1931 | |
| 1932 | # Check IBS_OP_COUNT within range |
| 1933 | case "$CPUTYPE" in |
| 1934 | x86-64/family10) |
| 1935 | if test "$IBS_OP_COUNT" -gt 1048575 ; then |
| 1936 | echo "ERROR: IBS Op count is too large." |
| 1937 | echo " The maximum IBS-fetch count is 1048575." |
| 1938 | exit 1 |
| 1939 | fi |
| 1940 | ;; |
| 1941 | |
| 1942 | x86-64/family12h|\ |
| 1943 | x86-64/family14h|\ |
| 1944 | x86-64/family15h) |
| 1945 | if test "$IBS_OP_COUNT" -gt 134217727 ; then |
| 1946 | echo "ERROR: IBS Op count is too large." |
| 1947 | echo " The maximum IBS-Op count is 134217727." |
| 1948 | exit 1 |
| 1949 | fi |
| 1950 | ;; |
| 1951 | *) |
| 1952 | esac |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 1953 | fi |
| 1954 | |
| 1955 | return |
| 1956 | } |
| 1957 | |
| 1958 | |
| 1959 | do_param_setup_ibs() |
| 1960 | { |
| 1961 | if test "$KERNEL_SUPPORT" != "yes" ; then |
| 1962 | echo "ERROR: No kernel support for IBS profiling." |
| 1963 | exit 1 |
| 1964 | fi |
| 1965 | |
| 1966 | # Check if driver has IBS support |
| 1967 | if test ! -d $MOUNT/ibs_fetch -o ! -d $MOUNT/ibs_op ; then |
| 1968 | echo "ERROR: No kernel support for IBS profiling." |
| 1969 | exit 1 |
| 1970 | fi |
| 1971 | |
| 1972 | if test `echo $EVENT | \ |
| 1973 | awk '{ print substr($0, 1, 10)}'` = "IBS_FETCH_" ; then |
| 1974 | if test "$COUNT" != "0"; then |
| 1975 | if [ "$IBS_FETCH_EVENTS" = "" ] ; then |
| 1976 | IBS_FETCH_EVENTS="$EVENT" |
| 1977 | else |
| 1978 | IBS_FETCH_EVENTS="$IBS_FETCH_EVENTS,$EVENT" |
| 1979 | fi |
| 1980 | IBS_FETCH_COUNT=$COUNT |
| 1981 | set_param ibs_fetch/max_count $COUNT |
| 1982 | set_param ibs_fetch/rand_enable 1 |
| 1983 | set_param ibs_fetch/enable 1 |
| 1984 | else |
| 1985 | set_param ibs_fetch/enable 0 |
| 1986 | fi |
| 1987 | |
| 1988 | elif test `echo $EVENT | \ |
| 1989 | awk '{ print substr($0, 1, 7)}'` = "IBS_OP_" ; then |
| 1990 | if test "$COUNT" != "0"; then |
| 1991 | if [ "$IBS_OP_EVENTS" = "" ] ; then |
| 1992 | IBS_OP_EVENTS="$EVENT" |
| 1993 | else |
| 1994 | IBS_OP_EVENTS="$IBS_OP_EVENTS,$EVENT" |
| 1995 | fi |
| 1996 | IBS_OP_COUNT=$COUNT |
| 1997 | IBS_OP_UNITMASK=$UNIT_MASK |
| 1998 | |
| 1999 | set_param ibs_op/max_count $COUNT |
| 2000 | set_param ibs_op/enable 1 |
| 2001 | |
| 2002 | # NOTE: We default to use dispatched_op if available. |
| 2003 | # Some of the older family10 system does not have |
| 2004 | # dispatched_ops feature. |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 2005 | # Dispatched op is enabled by bit 0 of the unitmask |
| 2006 | IBS_OP_DISPATCHED_OP=$(( IBS_OP_UNITMASK & 0x1 )) |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 2007 | if test -f $MOUNT/ibs_op/dispatched_ops ; then |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 2008 | set_param ibs_op/dispatched_ops $IBS_OP_DISPATCHED_OP |
Jeff Brown | 7a33c86 | 2011-02-02 14:00:44 -0800 | [diff] [blame^] | 2009 | else |
| 2010 | if test $IBS_OP_DISPATCHED_OP -eq 1 ; then |
| 2011 | echo "ERROR: IBS Op dispatched ops is not supported." |
| 2012 | exit 1 |
| 2013 | fi |
| 2014 | fi |
| 2015 | |
| 2016 | # NOTE: BTA is enabled by bit 2 of the unitmask |
| 2017 | IBS_OP_BTA=$(( IBS_OP_UNITMASK & 0x4 )) |
| 2018 | if test -f $MOUNT/ibs_op/branch_target; then |
| 2019 | if [ "$IBS_OP_BTA" = "4" ] ; then |
| 2020 | set_param ibs_op/branch_target 1 |
| 2021 | else |
| 2022 | set_param ibs_op/branch_target 0 |
| 2023 | fi |
| 2024 | |
| 2025 | # TODO: Check if write successful |
| 2026 | else |
| 2027 | if test $IBS_OP_BTA -eq 1 ; then |
| 2028 | echo "ERROR: IBS Op Branch Target Address is not supported." |
| 2029 | exit 1 |
| 2030 | fi |
Mike Dodd | 8cfa702 | 2010-11-17 11:12:26 -0800 | [diff] [blame] | 2031 | fi |
| 2032 | else |
| 2033 | set_param ibs_op/enable 0 |
| 2034 | fi |
| 2035 | fi |
| 2036 | } |
| 2037 | |
| 2038 | |
| 2039 | help_start_daemon_with_ibs() |
| 2040 | { |
| 2041 | if test "$IBS_FETCH_COUNT" != "0" -o "$IBS_OP_COUNT" != "0" ; then |
| 2042 | OPD_ARGS="${OPD_ARGS} --ext-feature=ibs:" |
| 2043 | if test "$IBS_FETCH_COUNT" != "0"; then |
| 2044 | OPD_ARGS="${OPD_ARGS}fetch:$IBS_FETCH_EVENTS:$IBS_FETCH_COUNT:$IBS_FETCH_UNITMASK|" |
| 2045 | fi |
| 2046 | |
| 2047 | if test "$IBS_OP_COUNT" != "0"; then |
| 2048 | OPD_ARGS="${OPD_ARGS}op:$IBS_OP_EVENTS:$IBS_OP_COUNT:$IBS_OP_UNITMASK" |
| 2049 | fi |
| 2050 | fi |
| 2051 | } |
| 2052 | |
| 2053 | # |
| 2054 | # End IBS Specific Functions |
| 2055 | # |
| 2056 | |
| 2057 | # main |
| 2058 | |
| 2059 | # determine the location of opcontrol and related programs |
| 2060 | if test -z "$OPDIR"; then |
| 2061 | BINDIR="/usr/bin" |
| 2062 | OPCONTROL=`$BINDIR/which $0` |
| 2063 | OPDIR=`$BINDIR/dirname $OPCONTROL` |
| 2064 | fi |
| 2065 | |
| 2066 | PATH=$OPDIR:/usr/local/bin:/usr/local/sbin:/bin:/sbin:/usr/bin:/usr/sbin |
| 2067 | |
| 2068 | check_options_early $@ |
| 2069 | |
| 2070 | if test -z "$1"; then |
| 2071 | do_help |
| 2072 | exit 0 |
| 2073 | fi |
| 2074 | |
| 2075 | if test `id -u` = "0"; then |
| 2076 | try_reset_sample_file $@ |
| 2077 | |
| 2078 | load_module |
| 2079 | fi |
| 2080 | check_version |
| 2081 | |
| 2082 | # Except --reset, even the few operations allowed as non root needs the |
| 2083 | # kernel support, if we don't error out now the error message will be obscure |
| 2084 | check_oprofile_available |
| 2085 | |
| 2086 | do_init |
| 2087 | if test `id -u` != "0"; then |
| 2088 | if test -z "$2"; then |
| 2089 | case "$1" in |
| 2090 | --dump|-d) |
| 2091 | ONLY_DUMP=yes |
| 2092 | do_dump |
| 2093 | exit 0; |
| 2094 | ;; |
| 2095 | --list-events|-l) |
| 2096 | exec $OPHELP |
| 2097 | exit 0; |
| 2098 | ;; |
| 2099 | *) |
| 2100 | echo "Normal users are limited to either '--dump' or '--list-events'." >&2 |
| 2101 | exit 1 |
| 2102 | ;; |
| 2103 | esac |
| 2104 | else |
| 2105 | echo "Normal users are limited to either '--dump' or '--list-events'." >&2 |
| 2106 | exit 1 |
| 2107 | fi |
| 2108 | fi |
| 2109 | |
| 2110 | do_options $@ |
| 2111 | do_operations |