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#!/usr/sbin/dtrace -s
/*
* Copyright (c) 2010-2013 Apple Inc. All rights reserved.
*
* @APPLE_APACHE_LICENSE_HEADER_START@
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* @APPLE_APACHE_LICENSE_HEADER_END@
*/
/*
* Usage: dispatch_trace.d -p [pid]
* traced process must have been executed with
* DYLD_LIBRARY_PATH=/usr/lib/system/introspection or with
* DYLD_IMAGE_SUFFIX=_profile or DYLD_IMAGE_SUFFIX=_debug
*/
#pragma D option quiet
#pragma D option zdefs
#pragma D option bufsize=16m
BEGIN {
printf("%-8s %-3s %-8s %-35s%-15s%-?s %-43s%-?s %-14s%-?s %s\n",
"Time us", "CPU", "Thread", "Function", "Probe", "Queue", "Label",
"Item", "Kind", "Context", "Symbol");
}
dispatch$target:libdispatch*.dylib::queue-push,
dispatch$target:libdispatch*.dylib::queue-pop,
dispatch$target:libdispatch*.dylib::callout-entry,
dispatch$target:libdispatch*.dylib::callout-return /!start/ {
start = walltimestamp;
}
/*
* Trace queue push and pop operations:
*
* probe queue-push/-pop(dispatch_queue_t queue, const char *label,
* dispatch_object_t item, const char *kind,
* dispatch_function_t function, void *context)
*/
dispatch$target:libdispatch*.dylib::queue-push,
dispatch$target:libdispatch*.dylib::queue-pop {
printf("%-8d %-3d 0x%08p %-35s%-15s0x%0?p %-43s0x%0?p %-14s0x%0?p",
(walltimestamp-start)/1000, cpu, tid, probefunc, probename, arg0,
copyinstr(arg1, 42), arg2, copyinstr(arg3, 13), arg5);
usym(arg4);
printf("\n");
}
/*
* Trace callouts to client functions:
*
* probe callout-entry/-return(dispatch_queue_t queue, const char *label,
* dispatch_function_t function, void *context)
*/
dispatch$target:libdispatch*.dylib::callout-entry,
dispatch$target:libdispatch*.dylib::callout-return {
printf("%-8d %-3d 0x%08p %-35s%-15s0x%0?p %-43s%-?s %-14s0x%0?p",
(walltimestamp-start)/1000, cpu, tid, probefunc, probename, arg0,
copyinstr(arg1, 42), "", "", arg3);
usym(arg2);
printf("\n");
}
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