iokit/Kernel/IOKitDebug.cpp

   1 /*
   2  * Copyright (c) 1998-2011 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28
  29 #include <sys/sysctl.h>
  30
  31 #include <IOKit/IOKitDebug.h>
  32 #include <IOKit/IOLib.h>
  33 #include <IOKit/assert.h>
  34 #include <IOKit/IODeviceTreeSupport.h>
  35 #include <IOKit/IOService.h>
  36
  37 #include <libkern/c++/OSContainers.h>
  38 #include <libkern/c++/OSCPPDebug.h>
  39
  40 #ifdef IOKITDEBUG
  41 #define DEBUG_INIT_VALUE IOKITDEBUG
  42 #else
  43 #define DEBUG_INIT_VALUE 0
  44 #endif
  45
  46 SInt64          gIOKitDebug = DEBUG_INIT_VALUE;
  47 SInt64          gIOKitTrace = 0x3B;
  48 UInt64          gIOInterruptThresholdNS = 0;
  49
  50 SYSCTL_QUAD(_debug, OID_AUTO, iokit, CTLFLAG_RW | CTLFLAG_LOCKED, &gIOKitDebug, "boot_arg io");
  51 SYSCTL_QUAD(_debug, OID_AUTO, iotrace, CTLFLAG_RW | CTLFLAG_LOCKED, &gIOKitTrace, "trace io");
  52 SYSCTL_QUAD(_debug, OID_AUTO, iointthreshold, CTLFLAG_RW | CTLFLAG_LOCKED, &gIOInterruptThresholdNS, "io interrupt threshold");
  53
  54
  55 int             debug_malloc_size;
  56 int             debug_iomalloc_size;
  57
  58 vm_size_t       debug_iomallocpageable_size;
  59 int             debug_container_malloc_size;
  60 // int          debug_ivars_size; // in OSObject.cpp
  61
  62 extern "C" {
  63
  64 #if 0
  65 #define DEBG(fmt, args...)   { kprintf(fmt, ## args); }
  66 #else
  67 #define DEBG(fmt, args...)   { IOLog(fmt, ## args); }
  68 #endif
  69
  70 void IOPrintPlane( const IORegistryPlane * plane )
  71 {
  72     IORegistryEntry *           next;
  73     IORegistryIterator *        iter;
  74     OSOrderedSet *              all;
  75     char                        format[] = "%xxxs";
  76     IOService *                 service;
  77
  78     iter = IORegistryIterator::iterateOver( plane );
  79     assert( iter );
  80     all = iter->iterateAll();
  81     if( all) {
  82         DEBG("Count %d\n", all->getCount() );
  83         all->release();
  84     } else
  85         DEBG("Empty\n");
  86
  87     iter->reset();
  88     while( (next = iter->getNextObjectRecursive())) {
  89         snprintf(format + 1, sizeof(format) - 1, "%ds", 2 * next->getDepth( plane ));
  90         DEBG( format, "");
  91         DEBG( "\033[33m%s", next->getName( plane ));
  92         if( (next->getLocation( plane )))
  93             DEBG("@%s", next->getLocation( plane ));
  94         DEBG("\033[0m <class %s", next->getMetaClass()->getClassName());
  95         if( (service = OSDynamicCast(IOService, next)))
  96             DEBG(", busy %ld", (long) service->getBusyState());
  97         DEBG( ">\n");
  98 //      IOSleep(250);
  99     }
 100     iter->release();
 101 }
 102
 103 void dbugprintf(char *fmt, ...);
 104 void db_dumpiojunk( const IORegistryPlane * plane );
 105
 106 void db_piokjunk(void) {
 107
 108         dbugprintf("\nDT plane:\n");
 109         db_dumpiojunk( gIODTPlane );
 110         dbugprintf("\n\nService plane:\n");
 111         db_dumpiojunk( gIOServicePlane );
 112     dbugprintf("\n\n"
 113             "ivar kalloc()       0x%08x\n"
 114             "malloc()            0x%08x\n"
 115             "containers kalloc() 0x%08x\n"
 116             "IOMalloc()          0x%08x\n"
 117             "----------------------------------------\n",
 118             debug_ivars_size,
 119             debug_malloc_size,
 120             debug_container_malloc_size,
 121             debug_iomalloc_size
 122             );
 123
 124 }
 125
 126
 127 void db_dumpiojunk( const IORegistryPlane * plane )
 128 {
 129     IORegistryEntry *           next;
 130     IORegistryIterator *        iter;
 131     OSOrderedSet *              all;
 132     char                        format[] = "%xxxs";
 133     IOService *                 service;
 134
 135     iter = IORegistryIterator::iterateOver( plane );
 136
 137     all = iter->iterateAll();
 138     if( all) {
 139         dbugprintf("Count %d\n", all->getCount() );
 140         all->release();
 141     } else dbugprintf("Empty\n");
 142
 143     iter->reset();
 144     while( (next = iter->getNextObjectRecursive())) {
 145                 snprintf(format + 1, sizeof(format) - 1, "%ds", 2 * next->getDepth( plane ));
 146                 dbugprintf( format, "");
 147                 dbugprintf( "%s", next->getName( plane ));
 148                 if( (next->getLocation( plane )))
 149                                 dbugprintf("@%s", next->getLocation( plane ));
 150                 dbugprintf(" <class %s", next->getMetaClass()->getClassName());
 151                         if( (service = OSDynamicCast(IOService, next)))
 152                                 dbugprintf(", busy %ld", service->getBusyState());
 153                 dbugprintf( ">\n");
 154     }
 155     iter->release();
 156 }
 157
 158 void IOPrintMemory( void )
 159 {
 160
 161 //    OSMetaClass::printInstanceCounts();
 162
 163     IOLog("\n"
 164             "ivar kalloc()       0x%08x\n"
 165             "malloc()            0x%08x\n"
 166             "containers kalloc() 0x%08x\n"
 167             "IOMalloc()          0x%08x\n"
 168             "----------------------------------------\n",
 169             debug_ivars_size,
 170             debug_malloc_size,
 171             debug_container_malloc_size,
 172             debug_iomalloc_size
 173             );
 174 }
 175
 176 } /* extern "C" */
 177
 178 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 179
 180 #define super OSObject
 181 OSDefineMetaClassAndStructors(IOKitDiagnostics, OSObject)
 182
 183 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 184
 185 OSObject * IOKitDiagnostics::diagnostics( void )
 186 {
 187     IOKitDiagnostics * diags;
 188
 189     diags = new IOKitDiagnostics;
 190     if( diags && !diags->init()) {
 191         diags->release();
 192         diags = 0;
 193     }
 194
 195     return( diags );
 196 }
 197
 198 void IOKitDiagnostics::updateOffset( OSDictionary * dict,
 199                         UInt32 value, const char * name )
 200 {
 201     OSNumber * off;
 202
 203     off = OSNumber::withNumber( value, 32 );
 204     if( !off)
 205         return;
 206
 207     dict->setObject( name, off );
 208     off->release();
 209 }
 210
 211 bool IOKitDiagnostics::serialize(OSSerialize *s) const
 212 {
 213     OSDictionary *      dict;
 214     bool                ok;
 215
 216     dict = OSDictionary::withCapacity( 5 );
 217     if( !dict)
 218         return( false );
 219
 220     updateOffset( dict, debug_ivars_size, "Instance allocation" );
 221     updateOffset( dict, debug_container_malloc_size, "Container allocation" );
 222     updateOffset( dict, debug_iomalloc_size, "IOMalloc allocation" );
 223     updateOffset( dict, debug_iomallocpageable_size, "Pageable allocation" );
 224
 225     OSMetaClass::serializeClassDictionary(dict);
 226
 227     ok = dict->serialize( s );
 228
 229     dict->release();
 230
 231     return( ok );
 232 }
 233
 234 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */