DynamicLoaderDarwinKernel.cpp revision 2c529b11da5cf25be2859851fa231f6cd8788f66
117f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton//===-- DynamicLoaderDarwinKernel.cpp -----------------------------*- C++ -*-===// 2bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// 3bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// The LLVM Compiler Infrastructure 4bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// 5bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// This file is distributed under the University of Illinois Open Source 6bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// License. See LICENSE.TXT for details. 7bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// 8bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//===----------------------------------------------------------------------===// 9bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 10d891f9b872103235cfd2ed452c6f14a4394d9b3aDaniel Malea#include "lldb/lldb-python.h" 11d891f9b872103235cfd2ed452c6f14a4394d9b3aDaniel Malea 12bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Breakpoint/StoppointCallbackContext.h" 13bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Core/DataBuffer.h" 14bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Core/DataBufferHeap.h" 15234981a4559db084f9c90612660e40f19915b89cGreg Clayton#include "lldb/Core/Debugger.h" 16bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Core/Log.h" 17bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Core/Module.h" 1849ce8969d3154e1560106cfe530444c09410f217Greg Clayton#include "lldb/Core/ModuleSpec.h" 19bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Core/PluginManager.h" 2049ce8969d3154e1560106cfe530444c09410f217Greg Clayton#include "lldb/Core/Section.h" 21bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Core/State.h" 224952db8c76f619e3d8a0cf13456097128009d67bJason Molenda#include "lldb/Host/Symbols.h" 23bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Symbol/ObjectFile.h" 24bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Target/RegisterContext.h" 254952db8c76f619e3d8a0cf13456097128009d67bJason Molenda#include "lldb/Target/StackFrame.h" 26bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Target/Target.h" 27bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Target/Thread.h" 28bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include "lldb/Target/ThreadPlanRunToAddress.h" 294952db8c76f619e3d8a0cf13456097128009d67bJason Molenda 30bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 3117f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton#include "DynamicLoaderDarwinKernel.h" 32bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 33bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//#define ENABLE_DEBUG_PRINTF // COMMENT THIS LINE OUT PRIOR TO CHECKIN 34bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#ifdef ENABLE_DEBUG_PRINTF 35bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#include <stdio.h> 36bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#define DEBUG_PRINTF(fmt, ...) printf(fmt, ## __VA_ARGS__) 37bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#else 38bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#define DEBUG_PRINTF(fmt, ...) 39bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton#endif 40bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 41bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonusing namespace lldb; 42bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonusing namespace lldb_private; 43bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 449338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Progressively greater amounts of scanning we will allow 459338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// For some targets very early in startup, we can't do any random reads of memory or we can crash the device 469338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// so a setting is needed that can completely disable the KASLR scans. 479338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 489338dd571e7781a89724d79e1f54385c282d0316Jason Molendaenum KASLRScanType 499338dd571e7781a89724d79e1f54385c282d0316Jason Molenda{ 509338dd571e7781a89724d79e1f54385c282d0316Jason Molenda eKASLRScanNone = 0, // No reading into the inferior at all 519338dd571e7781a89724d79e1f54385c282d0316Jason Molenda eKASLRScanLowgloAddresses, // Check one word of memory for a possible kernel addr, then see if a kernel is there 5294c0f4c378f39b540ffb46992c5741a4bc59e2e2Jason Molenda eKASLRScanNearPC, // Scan backwards from the current $pc looking for kernel; checking at 96 locations total 539338dd571e7781a89724d79e1f54385c282d0316Jason Molenda eKASLRScanExhaustiveScan // Scan through the entire possible kernel address range looking for a kernel 549338dd571e7781a89724d79e1f54385c282d0316Jason Molenda}; 559338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 569338dd571e7781a89724d79e1f54385c282d0316Jason MolendaOptionEnumValueElement 579338dd571e7781a89724d79e1f54385c282d0316Jason Molendag_kaslr_kernel_scan_enum_values[] = 589338dd571e7781a89724d79e1f54385c282d0316Jason Molenda{ 599338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { eKASLRScanNone, "none", "Do not read memory looking for a Darwin kernel when attaching." }, 609338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { eKASLRScanLowgloAddresses, "basic", "Check for the Darwin kernel's load addr in the lowglo page (boot-args=debug) only." }, 619338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { eKASLRScanNearPC, "fast-scan", "Scan near the pc value on attach to find the Darwin kernel's load address."}, 629338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { eKASLRScanExhaustiveScan, "exhaustive-scan", "Scan through the entire potential address range of Darwin kernel (only on 32-bit targets)."}, 639338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 0, NULL, NULL } 649338dd571e7781a89724d79e1f54385c282d0316Jason Molenda}; 659338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 6687e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Claytonstatic PropertyDefinition 6787e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Claytong_properties[] = 6887e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton{ 692f27af8e7b2515b05e28653177da01c9a3fe0c52Greg Clayton { "load-kexts" , OptionValue::eTypeBoolean, true, true, NULL, NULL, "Automatically loads kext images when attaching to a kernel." }, 709338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { "scan-type", OptionValue::eTypeEnum, true, eKASLRScanNearPC, NULL, g_kaslr_kernel_scan_enum_values, "Control how many reads lldb will make while searching for a Darwin kernel on attach." }, 712f27af8e7b2515b05e28653177da01c9a3fe0c52Greg Clayton { NULL , OptionValue::eTypeInvalid, false, 0 , NULL, NULL, NULL } 7287e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton}; 7387e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton 7487e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Claytonenum { 759338dd571e7781a89724d79e1f54385c282d0316Jason Molenda ePropertyLoadKexts, 769338dd571e7781a89724d79e1f54385c282d0316Jason Molenda ePropertyScanType 7787e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton}; 7887e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton 7987e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Claytonclass DynamicLoaderDarwinKernelProperties : public Properties 8087e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton{ 8187e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Claytonpublic: 8287e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton 8387e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton static ConstString & 8487e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton GetSettingName () 8587e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton { 862acbc2a80c0116454426db2d8b55bc23e6cbb0c1Greg Clayton static ConstString g_setting_name("darwin-kernel"); 8787e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton return g_setting_name; 8887e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton } 8987e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton 9087e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton DynamicLoaderDarwinKernelProperties() : 9187e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton Properties () 9287e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton { 9387e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton m_collection_sp.reset (new OptionValueProperties(GetSettingName())); 9487e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton m_collection_sp->Initialize(g_properties); 9587e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton } 9687e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton 9787e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton virtual 9887e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton ~DynamicLoaderDarwinKernelProperties() 9987e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton { 10087e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton } 1019338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 10287e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton bool 1032f27af8e7b2515b05e28653177da01c9a3fe0c52Greg Clayton GetLoadKexts() const 10487e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton { 1052f27af8e7b2515b05e28653177da01c9a3fe0c52Greg Clayton const uint32_t idx = ePropertyLoadKexts; 10687e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL, idx, g_properties[idx].default_uint_value != 0); 10787e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton } 1089338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 1099338dd571e7781a89724d79e1f54385c282d0316Jason Molenda KASLRScanType 1109338dd571e7781a89724d79e1f54385c282d0316Jason Molenda GetScanType() const 1119338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 1129338dd571e7781a89724d79e1f54385c282d0316Jason Molenda const uint32_t idx = ePropertyScanType; 11394c0f4c378f39b540ffb46992c5741a4bc59e2e2Jason Molenda return (KASLRScanType) m_collection_sp->GetPropertyAtIndexAsEnumeration (NULL, idx, g_properties[idx].default_uint_value); 1149338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 1159338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 1169338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 11787e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton}; 11887e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton 11987e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Claytontypedef STD_SHARED_PTR(DynamicLoaderDarwinKernelProperties) DynamicLoaderDarwinKernelPropertiesSP; 12087e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton 12187e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Claytonstatic const DynamicLoaderDarwinKernelPropertiesSP & 12287e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg ClaytonGetGlobalProperties() 12387e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton{ 12487e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton static DynamicLoaderDarwinKernelPropertiesSP g_settings_sp; 12587e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton if (!g_settings_sp) 12687e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton g_settings_sp.reset (new DynamicLoaderDarwinKernelProperties ()); 12787e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton return g_settings_sp; 12887e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton} 12987e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton 130bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 131bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// Create an instance of this class. This function is filled into 132bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// the plugin info class that gets handed out by the plugin factory and 133bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// allows the lldb to instantiate an instance of this class. 134bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 135bbea13375ec4ae876576fcb8608626d45880dd96Greg ClaytonDynamicLoader * 13617f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::CreateInstance (Process* process, bool force) 137bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1389338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (!force) 139bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 1409338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // If the user provided an executable binary and it is not a kernel, 1419338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // this plugin should not create an instance. 1425beb99d65c72cd4a4f7529c4ff8cc04a1a40769dGreg Clayton Module* exe_module = process->GetTarget().GetExecutableModulePointer(); 14340f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton if (exe_module) 14440f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton { 14540f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton ObjectFile *object_file = exe_module->GetObjectFile(); 14640f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton if (object_file) 14740f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton { 1489338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (object_file->GetStrata() != ObjectFile::eStrataKernel) 1499338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 1509338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return NULL; 1519338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 15240f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton } 15340f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton } 1549338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 1559338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // If the target's architecture does not look like an Apple environment, 1569338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // this plugin should not create an instance. 1579338dd571e7781a89724d79e1f54385c282d0316Jason Molenda const llvm::Triple &triple_ref = process->GetTarget().GetArchitecture().GetTriple(); 1589338dd571e7781a89724d79e1f54385c282d0316Jason Molenda switch (triple_ref.getOS()) 1599338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 1609338dd571e7781a89724d79e1f54385c282d0316Jason Molenda case llvm::Triple::Darwin: 1619338dd571e7781a89724d79e1f54385c282d0316Jason Molenda case llvm::Triple::MacOSX: 1629338dd571e7781a89724d79e1f54385c282d0316Jason Molenda case llvm::Triple::IOS: 1639338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (triple_ref.getVendor() != llvm::Triple::Apple) 1649338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 1659338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return NULL; 1669338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 1679338dd571e7781a89724d79e1f54385c282d0316Jason Molenda break; 1689338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // If we have triple like armv7-unknown-unknown, we should try looking for a Darwin kernel. 1699338dd571e7781a89724d79e1f54385c282d0316Jason Molenda case llvm::Triple::UnknownOS: 1709338dd571e7781a89724d79e1f54385c282d0316Jason Molenda break; 1719338dd571e7781a89724d79e1f54385c282d0316Jason Molenda default: 1729338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return NULL; 1739338dd571e7781a89724d79e1f54385c282d0316Jason Molenda break; 1749338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 1759338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 1769338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 1779338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // At this point if there is an ExecutableModule, it is a kernel and the Target is some variant of an Apple system. 1789338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // If the Process hasn't provided the kernel load address, we need to look around in memory to find it. 1799338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 1809338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr_t kernel_load_address = process->GetImageInfoAddress(); 1819338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (kernel_load_address == LLDB_INVALID_ADDRESS) 1829338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 1839338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_load_address = SearchForKernelAtSameLoadAddr (process); 1849338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (kernel_load_address == LLDB_INVALID_ADDRESS) 18540f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton { 1869338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_load_address = SearchForKernelWithDebugHints (process); 1879338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (kernel_load_address == LLDB_INVALID_ADDRESS) 188b170aee2daacc83e3d71c3e3acc9d56c89893a7bGreg Clayton { 1899338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_load_address = SearchForKernelNearPC (process); 1909338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (kernel_load_address == LLDB_INVALID_ADDRESS) 1919338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 1929338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_load_address = SearchForKernelViaExhaustiveSearch (process); 1939338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 194b170aee2daacc83e3d71c3e3acc9d56c89893a7bGreg Clayton } 19540f79177b1b63f4b718a6f1160ee6485a547365eGreg Clayton } 196bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1979338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 1989338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (kernel_load_address != LLDB_INVALID_ADDRESS) 1996cf6c474742a23e7cb6b4f618bf1de711db90a85Sean Callanan { 2006cf6c474742a23e7cb6b4f618bf1de711db90a85Sean Callanan process->SetCanJIT(false); 2019338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return new DynamicLoaderDarwinKernel (process, kernel_load_address); 2026cf6c474742a23e7cb6b4f618bf1de711db90a85Sean Callanan } 203bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return NULL; 204bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 205bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 206bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 2079338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Check if the kernel binary is loaded in memory without a slide. 2089338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// First verify that the ExecutableModule is a kernel before we proceed. 2099338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Returns the address of the kernel if one was found, else LLDB_INVALID_ADDRESS. 2109338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 2119338dd571e7781a89724d79e1f54385c282d0316Jason Molendalldb::addr_t 2129338dd571e7781a89724d79e1f54385c282d0316Jason MolendaDynamicLoaderDarwinKernel::SearchForKernelAtSameLoadAddr (Process *process) 2139338dd571e7781a89724d79e1f54385c282d0316Jason Molenda{ 2149338dd571e7781a89724d79e1f54385c282d0316Jason Molenda Module *exe_module = process->GetTarget().GetExecutableModulePointer(); 2159338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (exe_module == NULL) 2169338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2179338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2189338dd571e7781a89724d79e1f54385c282d0316Jason Molenda ObjectFile *exe_objfile = exe_module->GetObjectFile(); 2199338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (exe_objfile == NULL) 2209338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2219338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2229338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (exe_objfile->GetType() != ObjectFile::eTypeExecutable || exe_objfile->GetStrata() != ObjectFile::eStrataKernel) 2239338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2249338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2259338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (!exe_objfile->GetHeaderAddress().IsValid()) 2269338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2279338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2289338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (CheckForKernelImageAtAddress (exe_objfile->GetHeaderAddress().GetFileAddress(), process) == exe_module->GetUUID()) 2299338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return exe_objfile->GetHeaderAddress().GetFileAddress(); 2309338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2319338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2329338dd571e7781a89724d79e1f54385c282d0316Jason Molenda} 2339338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2349338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 2359338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// If the debug flag is included in the boot-args nvram setting, the kernel's load address 2369338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// will be noted in the lowglo page at a fixed address 2379338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Returns the address of the kernel if one was found, else LLDB_INVALID_ADDRESS. 2389338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 2399338dd571e7781a89724d79e1f54385c282d0316Jason Molendalldb::addr_t 2409338dd571e7781a89724d79e1f54385c282d0316Jason MolendaDynamicLoaderDarwinKernel::SearchForKernelWithDebugHints (Process *process) 2419338dd571e7781a89724d79e1f54385c282d0316Jason Molenda{ 2429338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (GetGlobalProperties()->GetScanType() == eKASLRScanNone) 2439338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2449338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2459338dd571e7781a89724d79e1f54385c282d0316Jason Molenda Error read_err; 2469338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr_t addr = LLDB_INVALID_ADDRESS; 2479338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (process->GetTarget().GetArchitecture().GetAddressByteSize() == 8) 2489338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 2499338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr = process->ReadUnsignedIntegerFromMemory (0xffffff8000002010ULL, 8, LLDB_INVALID_ADDRESS, read_err); 2509338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 2519338dd571e7781a89724d79e1f54385c282d0316Jason Molenda else 2529338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 2539338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr = process->ReadUnsignedIntegerFromMemory (0xffff0110, 4, LLDB_INVALID_ADDRESS, read_err); 2549338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 2559338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2569338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (addr == 0) 2579338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr = LLDB_INVALID_ADDRESS; 2589338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2599338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (addr != LLDB_INVALID_ADDRESS) 2609338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 2619338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (CheckForKernelImageAtAddress (addr, process).IsValid()) 2629338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return addr; 2639338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 2649338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2659338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2669338dd571e7781a89724d79e1f54385c282d0316Jason Molenda} 2679338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2689338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 2699338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// If the kernel is currently executing when lldb attaches, and we don't have 2709338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// a better way of finding the kernel's load address, try searching backwards 2719338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// from the current pc value looking for the kernel's Mach header in memory. 2729338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Returns the address of the kernel if one was found, else LLDB_INVALID_ADDRESS. 2739338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 2749338dd571e7781a89724d79e1f54385c282d0316Jason Molendalldb::addr_t 2759338dd571e7781a89724d79e1f54385c282d0316Jason MolendaDynamicLoaderDarwinKernel::SearchForKernelNearPC (Process *process) 2769338dd571e7781a89724d79e1f54385c282d0316Jason Molenda{ 2779338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (GetGlobalProperties()->GetScanType() == eKASLRScanNone 2789338dd571e7781a89724d79e1f54385c282d0316Jason Molenda || GetGlobalProperties()->GetScanType() == eKASLRScanLowgloAddresses) 2799338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 2809338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2819338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 2829338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2839338dd571e7781a89724d79e1f54385c282d0316Jason Molenda ThreadSP thread = process->GetThreadList().GetSelectedThread (); 2849338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (thread.get() == NULL) 2859338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2869338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr_t pc = thread->GetRegisterContext ()->GetPC(LLDB_INVALID_ADDRESS); 2879338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2889338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (pc == LLDB_INVALID_ADDRESS) 2899338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 2909338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 2919338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr_t kernel_range_low, kernel_range_high; 2929338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (process->GetTarget().GetArchitecture().GetAddressByteSize() == 8) 2939338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 2949338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_range_low = 1ULL << 63; 2959338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_range_high = UINT64_MAX; 2969338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 2979338dd571e7781a89724d79e1f54385c282d0316Jason Molenda else 2989338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 2999338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_range_low = 1ULL << 31; 3009338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_range_high = UINT32_MAX; 3019338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 3029338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3039338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // Outside the normal kernel address range, this is probably userland code running right now 3049338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (pc < kernel_range_low) 3059338dd571e7781a89724d79e1f54385c282d0316Jason Molenda LLDB_INVALID_ADDRESS; 3069338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3079338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // The kernel will load at at one megabyte boundary (0x100000), or at that boundary plus 3089338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // an offset of one page (0x1000) or two, depending on the device. 3099338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3109338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // Round the current pc down to the nearest one megabyte boundary - the place where we will start searching. 3119338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr_t addr = pc & ~0xfffff; 3129338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3139338dd571e7781a89724d79e1f54385c282d0316Jason Molenda int i = 0; 3149338dd571e7781a89724d79e1f54385c282d0316Jason Molenda while (i < 32 && pc >= kernel_range_low) 3159338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 3169338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (CheckForKernelImageAtAddress (addr, process).IsValid()) 3179338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return addr; 3189338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (CheckForKernelImageAtAddress (addr + 0x1000, process).IsValid()) 3199338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return addr + 0x1000; 3209338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (CheckForKernelImageAtAddress (addr + 0x2000, process).IsValid()) 3219338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return addr + 0x2000; 3229338dd571e7781a89724d79e1f54385c282d0316Jason Molenda i++; 3239338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr -= 0x100000; 3249338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 3259338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3269338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 3279338dd571e7781a89724d79e1f54385c282d0316Jason Molenda} 3289338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3299338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 3309338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Scan through the valid address range for a kernel binary. 3319338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// This is uselessly slow in 64-bit environments so we don't even try it. 3329338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// This scan is not enabled by default even for 32-bit targets. 3339338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Returns the address of the kernel if one was found, else LLDB_INVALID_ADDRESS. 3349338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 3359338dd571e7781a89724d79e1f54385c282d0316Jason Molendalldb::addr_t 3369338dd571e7781a89724d79e1f54385c282d0316Jason MolendaDynamicLoaderDarwinKernel::SearchForKernelViaExhaustiveSearch (Process *process) 3379338dd571e7781a89724d79e1f54385c282d0316Jason Molenda{ 3389338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (GetGlobalProperties()->GetScanType() != eKASLRScanExhaustiveScan) 3399338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 3409338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 3419338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 3429338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3439338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr_t kernel_range_low, kernel_range_high; 3449338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (process->GetTarget().GetArchitecture().GetAddressByteSize() == 8) 3459338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 3469338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_range_low = 1ULL << 63; 3479338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_range_high = UINT64_MAX; 3489338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 3499338dd571e7781a89724d79e1f54385c282d0316Jason Molenda else 3509338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 3519338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_range_low = 1ULL << 31; 3529338dd571e7781a89724d79e1f54385c282d0316Jason Molenda kernel_range_high = UINT32_MAX; 3539338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 3549338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3559338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // Stepping through memory at one-megabyte resolution looking for a kernel 3569338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // rarely works (fast enough) with a 64-bit address space -- for now, let's 3579338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // not even bother. We may be attaching to something which *isn't* a kernel 3589338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // and we don't want to spin for minutes on-end looking for a kernel. 3599338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (process->GetTarget().GetArchitecture().GetAddressByteSize() == 8) 3609338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 3619338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3629338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr_t addr = kernel_range_low; 3639338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3649338dd571e7781a89724d79e1f54385c282d0316Jason Molenda while (addr >= kernel_range_low && addr < kernel_range_high) 3659338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 3669338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (CheckForKernelImageAtAddress (addr, process).IsValid()) 3679338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return addr; 3689338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (CheckForKernelImageAtAddress (addr + 0x1000, process).IsValid()) 3699338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return addr + 0x1000; 3709338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (CheckForKernelImageAtAddress (addr + 0x2000, process).IsValid()) 3719338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return addr + 0x2000; 3729338dd571e7781a89724d79e1f54385c282d0316Jason Molenda addr += 0x100000; 3739338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 3749338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return LLDB_INVALID_ADDRESS; 3759338dd571e7781a89724d79e1f54385c282d0316Jason Molenda} 3769338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3779338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 3789338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Given an address in memory, look to see if there is a kernel image at that 3799338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// address. 3809338dd571e7781a89724d79e1f54385c282d0316Jason Molenda// Returns a UUID; if a kernel was not found at that address, UUID.IsValid() will be false. 3819338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 3829338dd571e7781a89724d79e1f54385c282d0316Jason Molendalldb_private::UUID 3839338dd571e7781a89724d79e1f54385c282d0316Jason MolendaDynamicLoaderDarwinKernel::CheckForKernelImageAtAddress (lldb::addr_t addr, Process *process) 3849338dd571e7781a89724d79e1f54385c282d0316Jason Molenda{ 3859338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (addr == LLDB_INVALID_ADDRESS) 3869338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return UUID(); 3879338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3889338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // First try a quick test -- read the first 4 bytes and see if there is a valid Mach-O magic field there 3899338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // (the first field of the mach_header/mach_header_64 struct). 3909338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 3919338dd571e7781a89724d79e1f54385c282d0316Jason Molenda Error read_error; 3929338dd571e7781a89724d79e1f54385c282d0316Jason Molenda uint64_t result = process->ReadUnsignedIntegerFromMemory (addr, 4, LLDB_INVALID_ADDRESS, read_error); 3939338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (result != llvm::MachO::HeaderMagic64 3949338dd571e7781a89724d79e1f54385c282d0316Jason Molenda && result != llvm::MachO::HeaderMagic32 3959338dd571e7781a89724d79e1f54385c282d0316Jason Molenda && result != llvm::MachO::HeaderMagic32Swapped 3969338dd571e7781a89724d79e1f54385c282d0316Jason Molenda && result != llvm::MachO::HeaderMagic64Swapped) 3979338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 3989338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return UUID(); 3999338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 4009338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 4019338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // Read the mach header and see whether it looks like a kernel 4029338dd571e7781a89724d79e1f54385c282d0316Jason Molenda llvm::MachO::mach_header header; 4039338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (process->DoReadMemory (addr, &header, sizeof(header), read_error) != sizeof(header)) 4049338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return UUID(); 4059338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 4069338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (header.magic == llvm::MachO::HeaderMagic32Swapped || 4079338dd571e7781a89724d79e1f54385c282d0316Jason Molenda header.magic == llvm::MachO::HeaderMagic64Swapped) 4089338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 4099338dd571e7781a89724d79e1f54385c282d0316Jason Molenda header.magic = llvm::ByteSwap_32(header.magic); 4109338dd571e7781a89724d79e1f54385c282d0316Jason Molenda header.cputype = llvm::ByteSwap_32(header.cputype); 4119338dd571e7781a89724d79e1f54385c282d0316Jason Molenda header.cpusubtype = llvm::ByteSwap_32(header.cpusubtype); 4129338dd571e7781a89724d79e1f54385c282d0316Jason Molenda header.filetype = llvm::ByteSwap_32(header.filetype); 4139338dd571e7781a89724d79e1f54385c282d0316Jason Molenda header.ncmds = llvm::ByteSwap_32(header.ncmds); 4149338dd571e7781a89724d79e1f54385c282d0316Jason Molenda header.sizeofcmds = llvm::ByteSwap_32(header.sizeofcmds); 4159338dd571e7781a89724d79e1f54385c282d0316Jason Molenda header.flags = llvm::ByteSwap_32(header.flags); 4169338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 4179338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 4189338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // A kernel is an executable which does not have the dynamic link object flag set. 4199338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (header.filetype == llvm::MachO::HeaderFileTypeExecutable 4209338dd571e7781a89724d79e1f54385c282d0316Jason Molenda && (header.flags & llvm::MachO::HeaderFlagBitIsDynamicLinkObject) == 0) 4219338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 4229338dd571e7781a89724d79e1f54385c282d0316Jason Molenda // Create a full module to get the UUID 4232ddb2b8aed6d43665c6955255f6a077574a08412Greg Clayton ModuleSP memory_module_sp = process->ReadModuleFromMemory (FileSpec ("temp_mach_kernel", false), addr); 4249338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (!memory_module_sp.get()) 4259338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return UUID(); 4269338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 4279338dd571e7781a89724d79e1f54385c282d0316Jason Molenda ObjectFile *exe_objfile = memory_module_sp->GetObjectFile(); 4289338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (exe_objfile == NULL) 4299338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return UUID(); 4309338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 4319338dd571e7781a89724d79e1f54385c282d0316Jason Molenda if (exe_objfile->GetType() == ObjectFile::eTypeExecutable && exe_objfile->GetStrata() == ObjectFile::eStrataKernel) 4329338dd571e7781a89724d79e1f54385c282d0316Jason Molenda { 4339338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return memory_module_sp->GetUUID(); 4349338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 4359338dd571e7781a89724d79e1f54385c282d0316Jason Molenda } 4369338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 4379338dd571e7781a89724d79e1f54385c282d0316Jason Molenda return UUID(); 4389338dd571e7781a89724d79e1f54385c282d0316Jason Molenda} 4399338dd571e7781a89724d79e1f54385c282d0316Jason Molenda 4409338dd571e7781a89724d79e1f54385c282d0316Jason Molenda//---------------------------------------------------------------------- 441bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// Constructor 442bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 4439338dd571e7781a89724d79e1f54385c282d0316Jason MolendaDynamicLoaderDarwinKernel::DynamicLoaderDarwinKernel (Process* process, lldb::addr_t kernel_addr) : 444bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton DynamicLoader(process), 4459338dd571e7781a89724d79e1f54385c282d0316Jason Molenda m_kernel_load_address (kernel_addr), 446bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton m_kernel(), 4477dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton m_kext_summary_header_ptr_addr (), 4488c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton m_kext_summary_header_addr (), 449bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton m_kext_summary_header (), 45032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_known_kexts (), 45197c8957257a3e0b3ce6f46f8e5a28c965e30f357Daniel Dunbar m_mutex(Mutex::eMutexTypeRecursive), 45297c8957257a3e0b3ce6f46f8e5a28c965e30f357Daniel Dunbar m_break_id (LLDB_INVALID_BREAK_ID) 453bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 454bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 455bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 456bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 457bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// Destructor 458bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 45917f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::~DynamicLoaderDarwinKernel() 460bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 461bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Clear(true); 462bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 463bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 464645facaf9c247b20f0f135445d437181688711a7Greg Claytonvoid 46517f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::UpdateIfNeeded() 466645facaf9c247b20f0f135445d437181688711a7Greg Clayton{ 467645facaf9c247b20f0f135445d437181688711a7Greg Clayton LoadKernelModuleIfNeeded(); 468645facaf9c247b20f0f135445d437181688711a7Greg Clayton SetNotificationBreakpointIfNeeded (); 469645facaf9c247b20f0f135445d437181688711a7Greg Clayton} 470bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//------------------------------------------------------------------ 471bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton/// Called after attaching a process. 472bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton/// 473bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton/// Allow DynamicLoader plug-ins to execute some code after 474bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton/// attaching to a process. 475bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//------------------------------------------------------------------ 476bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 47717f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::DidAttach () 478bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 479bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton PrivateInitialize(m_process); 480645facaf9c247b20f0f135445d437181688711a7Greg Clayton UpdateIfNeeded(); 481bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 482bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 483bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//------------------------------------------------------------------ 484bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton/// Called after attaching a process. 485bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton/// 486bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton/// Allow DynamicLoader plug-ins to execute some code after 487bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton/// attaching to a process. 488bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//------------------------------------------------------------------ 489bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 49017f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::DidLaunch () 491bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 492bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton PrivateInitialize(m_process); 493645facaf9c247b20f0f135445d437181688711a7Greg Clayton UpdateIfNeeded(); 494bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 495bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 496bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 497bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 498bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// Clear out the state of this class. 499bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 500bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 50117f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::Clear (bool clear_process) 502bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 503bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Mutex::Locker locker(m_mutex); 504bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 505bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (m_process->IsAlive() && LLDB_BREAK_ID_IS_VALID(m_break_id)) 506bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton m_process->ClearBreakpointSiteByID(m_break_id); 507bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 508bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (clear_process) 509bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton m_process = NULL; 51032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.Clear(); 51132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_known_kexts.clear(); 5127dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton m_kext_summary_header_ptr_addr.Clear(); 5138c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton m_kext_summary_header_addr.Clear(); 514bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton m_break_id = LLDB_INVALID_BREAK_ID; 515bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 516bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 517bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 518bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonbool 51932a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::LoadImageAtFileAddress (Process *process) 520aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton{ 521aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton if (IsLoaded()) 522aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton return true; 523aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton 52432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp) 525aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton { 526aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton bool changed = false; 52732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp->SetLoadAddress (process->GetTarget(), 0, changed)) 52832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_load_process_stop_id = process->GetStopID(); 529aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton } 530aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton return false; 531aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton} 532aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton 53332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendavoid 53432a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::SetModule (ModuleSP module_sp) 53532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 53632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp = module_sp; 53732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (module_sp.get() && module_sp->GetObjectFile()) 53832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 53932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (module_sp->GetObjectFile()->GetType() == ObjectFile::eTypeExecutable 54032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda && module_sp->GetObjectFile()->GetStrata() == ObjectFile::eStrataKernel) 54132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 54232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel_image = true; 54332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 54432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda else 54532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 54632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel_image = false; 54732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 54832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 54932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 55032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 55132a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaModuleSP 55232a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetModule () 55332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 55432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_module_sp; 55532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 55632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 55732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendavoid 55832a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::SetLoadAddress (addr_t load_addr) 55932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 56032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_load_address = load_addr; 56132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 56232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 56332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendaaddr_t 56432a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetLoadAddress () const 56532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 56632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_load_address; 56732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 56832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 56932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendauint64_t 57032a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetSize () const 57132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 57232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_size; 57332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 57432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 57532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendavoid 57632a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::SetSize (uint64_t size) 57732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 57832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_size = size; 57932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 58032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 58132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendauint32_t 58232a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetProcessStopId () const 58332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 58432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_load_process_stop_id; 58532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 58632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 58732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendavoid 58832a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::SetProcessStopId (uint32_t stop_id) 58932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 59032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_load_process_stop_id = stop_id; 59132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 59232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 593aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Claytonbool 59432a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::operator== (const KextImageInfo &rhs) 595bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 59632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_uuid.IsValid() || rhs.GetUUID().IsValid()) 59732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 59832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_uuid == rhs.GetUUID()) 59932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 60032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return true; 60132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 60232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return false; 60332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 60432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 60532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_name == rhs.GetName() && m_load_address == rhs.GetLoadAddress()) 6069ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton return true; 607bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 60832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return false; 60932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 610bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 61132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendavoid 61232a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::SetName (const char *name) 61332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 61432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_name = name; 61532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 616127291c8222625f1c8e31dfbb41c95103251ff56Jason Molenda 61732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendastd::string 61832a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetName () const 61932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 62032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_name; 62132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 62232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 62332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendavoid 62432a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::SetUUID (const UUID &uuid) 62532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 62632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_uuid = uuid; 62732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 62832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 62932a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaUUID 63032a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetUUID () const 63132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 63232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_uuid; 63332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 63432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 63532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// Given the m_load_address from the kext summaries, and a UUID, try to create an in-memory 63632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// Module at that address. Require that the MemoryModule have a matching UUID and detect 63732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// if this MemoryModule is a kernel or a kext. 63832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// 63932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// Returns true if m_memory_module_sp is now set to a valid Module. 64032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 64132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendabool 64232a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::ReadMemoryModule (Process *process) 64332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 64432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_memory_module_sp.get() != NULL) 64532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return true; 64632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_load_address == LLDB_INVALID_ADDRESS) 647127291c8222625f1c8e31dfbb41c95103251ff56Jason Molenda return false; 64832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 64932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda FileSpec file_spec; 65032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda file_spec.SetFile (m_name.c_str(), false); 65132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 65232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ModuleSP memory_module_sp = process->ReadModuleFromMemory (file_spec, m_load_address); 65332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 65432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (memory_module_sp.get() == NULL) 65532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return false; 65632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 65732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda bool is_kernel = false; 65832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (memory_module_sp->GetObjectFile()) 65932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 66032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (memory_module_sp->GetObjectFile()->GetType() == ObjectFile::eTypeExecutable 66132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda && memory_module_sp->GetObjectFile()->GetStrata() == ObjectFile::eStrataKernel) 66232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 66332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda is_kernel = true; 66432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 66532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda else if (memory_module_sp->GetObjectFile()->GetType() == ObjectFile::eTypeSharedLibrary) 66632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 66732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda is_kernel = false; 66832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 669127291c8222625f1c8e31dfbb41c95103251ff56Jason Molenda } 670127291c8222625f1c8e31dfbb41c95103251ff56Jason Molenda 67132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // If the kernel specified what UUID we should find at this load address, 67232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // require that the memory module have a matching UUID or something has gone 67332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // wrong and we should discard it. 67432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_uuid.IsValid()) 675bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 67632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_uuid != memory_module_sp->GetUUID()) 677bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 67832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return false; 679bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 68032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 68132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 68232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // If the in-memory Module has a UUID, let's use that. 68332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (!m_uuid.IsValid() && memory_module_sp->GetUUID().IsValid()) 68432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 68532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_uuid = memory_module_sp->GetUUID(); 68632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 68732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 68832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_memory_module_sp = memory_module_sp; 68932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel_image = is_kernel; 69032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (is_kernel) 69132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 69232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (memory_module_sp->GetArchitecture().IsValid()) 6934952db8c76f619e3d8a0cf13456097128009d67bJason Molenda { 69432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda process->GetTarget().SetArchitecture(memory_module_sp->GetArchitecture()); 6954952db8c76f619e3d8a0cf13456097128009d67bJason Molenda } 696bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 697bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 69832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return true; 69932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 70032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 70132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendabool 70232a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::IsKernel () const 70332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 70432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_kernel_image == true; 70532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 70632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 70732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendavoid 70832a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::SetIsKernel (bool is_kernel) 70932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 71032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel_image = is_kernel; 71132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda} 71232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 71332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molendabool 71432a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::LoadImageUsingMemoryModule (Process *process) 71532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda{ 71632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (IsLoaded()) 71732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return true; 71832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 71932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 72032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda Target &target = process->GetTarget(); 72132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 72232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // If we don't have / can't create a memory module for this kext, don't try to load it - we won't 72332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // have the correct segment load addresses. 72432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (!ReadMemoryModule (process)) 72532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 72632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return false; 72732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 72832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 72932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // If this is a kext and the user asked us to ignore kexts, don't try to load it. 73032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (!IsKernel() && GetGlobalProperties()->GetLoadKexts() == false) 73132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 73232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return false; 73332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 73432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 73532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda bool uuid_is_valid = m_uuid.IsValid(); 73632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 7370d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda if (IsKernel() && uuid_is_valid && m_memory_module_sp.get()) 7380d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda { 7390d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda Stream *s = &target.GetDebugger().GetOutputStream(); 7400d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda if (s) 7410d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda { 7420d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda char uuidbuf[64]; 7430d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda s->Printf ("Kernel UUID: %s\n", m_memory_module_sp->GetUUID().GetAsCString(uuidbuf, sizeof (uuidbuf))); 7440d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda s->Printf ("Load Address: 0x%" PRIx64 "\n", m_load_address); 7450d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda } 7460d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda } 7470d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda 74832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (!m_module_sp) 749bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 75032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // See if the kext has already been loaded into the target, probably by the user doing target modules add. 75132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const ModuleList &target_images = target.GetImages(); 75232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp = target_images.FindModule(m_uuid); 75332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 75432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // Search for the kext on the local filesystem via the UUID 75532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (!m_module_sp && uuid_is_valid) 756bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 75732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ModuleSpec module_spec; 75832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda module_spec.GetUUID() = m_uuid; 75932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda module_spec.GetArchitecture() = target.GetArchitecture(); 760d6b8122cee3dd02255bf50a7d019f17dfeba463aJason Molenda 7612c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda // For the kernel, we really do need an on-disk file copy of the binary to do anything useful. 7622c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda // This will force a clal to 76332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (IsKernel()) 764444fe998bf707bd076a70c3a779db8575533695eGreg Clayton { 7652c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda if (Symbols::DownloadObjectAndSymbolFile (module_spec, true)) 766d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda { 7672c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda if (module_spec.GetFileSpec().Exists()) 768d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda { 7692c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda m_module_sp.reset(new Module (module_spec.GetFileSpec(), target.GetArchitecture())); 7702c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda if (m_module_sp.get() && m_module_sp->MatchesModuleSpec (module_spec)) 7712c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda { 7722c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda ModuleList loaded_module_list; 7732c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda loaded_module_list.Append (m_module_sp); 7742c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda target.ModulesDidLoad (loaded_module_list); 7752c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda } 776d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda } 777d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda } 77832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 7792c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda 7802c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda // Ask the Target to find this file on the local system, if possible. 78132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // This will search in the list of currently-loaded files, look in the 78232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // standard search paths on the system, and on a Mac it will try calling 78332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // the DebugSymbols framework with the UUID to find the binary via its 78432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // search methods. 78532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (!m_module_sp) 78632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 78732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp = target.GetSharedModule (module_spec); 78832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 7890d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda 7902c529b11da5cf25be2859851fa231f6cd8788f66Jason Molenda if (IsKernel() && !m_module_sp) 7910d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda { 7920d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda Stream *s = &target.GetDebugger().GetOutputStream(); 7930d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda if (s) 7940d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda { 795fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda s->Printf ("WARNING: Unable to locate kernel binary on this system.\n"); 7960d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda } 7970d31111076a6048a83093ee98b219bdba05c0f16Jason Molenda } 79832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 79932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 80032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // If we managed to find a module, append it to the target's list of images. 80132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // If we also have a memory module, require that they have matching UUIDs 80232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp) 80332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 80432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda bool uuid_match_ok = true; 80532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_memory_module_sp) 80632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 80732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp->GetUUID() != m_memory_module_sp->GetUUID()) 808d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda { 80932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda uuid_match_ok = false; 810d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda } 81132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 81232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (uuid_match_ok) 81332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 81432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda target.GetImages().Append(m_module_sp); 81532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (IsKernel() && target.GetExecutableModulePointer() != m_module_sp.get()) 8165fdfc6db0f03ed4dc45b54f1d65c8e7db4135c18Jason Molenda { 81732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda target.SetExecutableModule (m_module_sp, false); 8185fdfc6db0f03ed4dc45b54f1d65c8e7db4135c18Jason Molenda } 819444fe998bf707bd076a70c3a779db8575533695eGreg Clayton } 820bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 821bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 8229ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton 823fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda if (!m_module_sp && !IsKernel() && m_uuid.IsValid() && !m_name.empty()) 824fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda { 825fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda Stream *s = &target.GetDebugger().GetOutputStream(); 826fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda if (s) 827fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda { 828fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda char uuidbuf[64]; 829fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda s->Printf ("warning: Can't find binary/dSYM for %s (%s)\n", 830fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda m_name.c_str(), m_uuid.GetAsCString(uuidbuf, sizeof (uuidbuf))); 831fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda } 832fcd9bf14828ec4e4d2a69671eff05f0b824e46b3Jason Molenda } 833bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 834a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton static ConstString g_section_name_LINKEDIT ("__LINKEDIT"); 835a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton 83632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_memory_module_sp && m_module_sp) 837bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 83832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp->GetUUID() == m_memory_module_sp->GetUUID()) 839bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 84032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ObjectFile *ondisk_object_file = m_module_sp->GetObjectFile(); 84132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ObjectFile *memory_object_file = m_memory_module_sp->GetObjectFile(); 842a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton 843d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda if (memory_object_file && ondisk_object_file) 844d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda { 84532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // The memory_module for kexts may have an invalid __LINKEDIT seg; skip it. 84632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const bool ignore_linkedit = !IsKernel (); 847a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton 848d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda SectionList *ondisk_section_list = ondisk_object_file->GetSectionList (); 849d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda SectionList *memory_section_list = memory_object_file->GetSectionList (); 850d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda if (memory_section_list && ondisk_section_list) 851bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 852d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda const uint32_t num_ondisk_sections = ondisk_section_list->GetSize(); 853d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda // There may be CTF sections in the memory image so we can't 854d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda // always just compare the number of sections (which are actually 855d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda // segments in mach-o parlance) 856d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda uint32_t sect_idx = 0; 857d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda 858d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda // Use the memory_module's addresses for each section to set the 859d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda // file module's load address as appropriate. We don't want to use 860d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda // a single slide value for the entire kext - different segments may 861d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda // be slid different amounts by the kext loader. 862d6b8122cee3dd02255bf50a7d019f17dfeba463aJason Molenda 863d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda uint32_t num_sections_loaded = 0; 864d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda for (sect_idx=0; sect_idx<num_ondisk_sections; ++sect_idx) 865d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda { 866d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda SectionSP ondisk_section_sp(ondisk_section_list->GetSectionAtIndex(sect_idx)); 867d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda if (ondisk_section_sp) 868bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 869a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton // Don't ever load __LINKEDIT as it may or may not be actually 870a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton // mapped into memory and there is no current way to tell. 871a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton // I filed rdar://problem/12851706 to track being able to tell 872a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton // if the __LINKEDIT is actually mapped, but until then, we need 873a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton // to not load the __LINKEDIT 874a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton if (ignore_linkedit && ondisk_section_sp->GetName() == g_section_name_LINKEDIT) 875a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton continue; 876a4d860f139342acaf6a1c7a3f7ab5683b023c3baGreg Clayton 877d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda const Section *memory_section = memory_section_list->FindSectionByName(ondisk_section_sp->GetName()).get(); 878d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda if (memory_section) 8790fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton { 880d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda target.GetSectionLoadList().SetSectionLoadAddress (ondisk_section_sp, memory_section->GetFileAddress()); 881d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda ++num_sections_loaded; 8820fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton } 8830fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton } 884bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 885d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda if (num_sections_loaded > 0) 88632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_load_process_stop_id = process->GetStopID(); 8879ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton else 88832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp.reset(); // No sections were loaded 889bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 8909ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton else 89132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp.reset(); // One or both section lists 892bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 8939ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton else 89432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp.reset(); // One or both object files missing 895bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 896d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda else 89732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp.reset(); // UUID mismatch 898bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 899d6d45ceeae51b6dbb9221a3cf82441afa212a7dcJason Molenda 9009ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton bool is_loaded = IsLoaded(); 9019ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton 90232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (is_loaded && m_module_sp && IsKernel()) 9034952db8c76f619e3d8a0cf13456097128009d67bJason Molenda { 9044952db8c76f619e3d8a0cf13456097128009d67bJason Molenda Stream *s = &target.GetDebugger().GetOutputStream(); 9054952db8c76f619e3d8a0cf13456097128009d67bJason Molenda if (s) 9064952db8c76f619e3d8a0cf13456097128009d67bJason Molenda { 90732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp->GetFileSpec().GetDirectory().IsEmpty()) 90863e5cf65c43615da20b272fde2a21ffd4fa6eb29Jason Molenda { 90932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda s->Printf ("Loaded kernel file %s\n", m_module_sp->GetFileSpec().GetFilename().AsCString()); 91063e5cf65c43615da20b272fde2a21ffd4fa6eb29Jason Molenda } 91163e5cf65c43615da20b272fde2a21ffd4fa6eb29Jason Molenda else 91263e5cf65c43615da20b272fde2a21ffd4fa6eb29Jason Molenda { 91363e5cf65c43615da20b272fde2a21ffd4fa6eb29Jason Molenda s->Printf ("Loaded kernel file %s/%s\n", 91432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp->GetFileSpec().GetDirectory().AsCString(), 91532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_module_sp->GetFileSpec().GetFilename().AsCString()); 91663e5cf65c43615da20b272fde2a21ffd4fa6eb29Jason Molenda } 9174952db8c76f619e3d8a0cf13456097128009d67bJason Molenda s->Flush (); 9184952db8c76f619e3d8a0cf13456097128009d67bJason Molenda } 9194952db8c76f619e3d8a0cf13456097128009d67bJason Molenda } 9209ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton return is_loaded; 921bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 922bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 92349ce8969d3154e1560106cfe530444c09410f217Greg Claytonuint32_t 92432a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetAddressByteSize () 92549ce8969d3154e1560106cfe530444c09410f217Greg Clayton{ 92632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_memory_module_sp) 92732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_memory_module_sp->GetArchitecture().GetAddressByteSize(); 92832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp) 92932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_module_sp->GetArchitecture().GetAddressByteSize(); 93049ce8969d3154e1560106cfe530444c09410f217Greg Clayton return 0; 93149ce8969d3154e1560106cfe530444c09410f217Greg Clayton} 93249ce8969d3154e1560106cfe530444c09410f217Greg Clayton 93349ce8969d3154e1560106cfe530444c09410f217Greg Claytonlldb::ByteOrder 93432a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetByteOrder() 93549ce8969d3154e1560106cfe530444c09410f217Greg Clayton{ 93632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_memory_module_sp) 93732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_memory_module_sp->GetArchitecture().GetByteOrder(); 93832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp) 93932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_module_sp->GetArchitecture().GetByteOrder(); 94049ce8969d3154e1560106cfe530444c09410f217Greg Clayton return lldb::endian::InlHostByteOrder(); 94149ce8969d3154e1560106cfe530444c09410f217Greg Clayton} 94249ce8969d3154e1560106cfe530444c09410f217Greg Clayton 94349ce8969d3154e1560106cfe530444c09410f217Greg Claytonlldb_private::ArchSpec 94432a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::GetArchitecture () const 94549ce8969d3154e1560106cfe530444c09410f217Greg Clayton{ 94632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_memory_module_sp) 94732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_memory_module_sp->GetArchitecture(); 94832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_module_sp) 94932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return m_module_sp->GetArchitecture(); 95049ce8969d3154e1560106cfe530444c09410f217Greg Clayton return lldb_private::ArchSpec (); 95149ce8969d3154e1560106cfe530444c09410f217Greg Clayton} 95249ce8969d3154e1560106cfe530444c09410f217Greg Clayton 95349ce8969d3154e1560106cfe530444c09410f217Greg Clayton 954bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 9559ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton// Load the kernel module and initialize the "m_kernel" member. Return 9569ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton// true _only_ if the kernel is loaded the first time through (subsequent 9579ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton// calls to this function should return false after the kernel has been 9589ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton// already loaded). 959bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 9609ce953807eb814a93b449dc243de4f7bf32c3115Greg Claytonvoid 9619ce953807eb814a93b449dc243de4f7bf32c3115Greg ClaytonDynamicLoaderDarwinKernel::LoadKernelModuleIfNeeded() 962bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 9639ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton if (!m_kext_summary_header_ptr_addr.IsValid()) 964bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 96532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.Clear(); 96632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.SetModule (m_process->GetTarget().GetExecutableModule()); 96732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.SetIsKernel(true); 968fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda 969fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda ConstString kernel_name("mach_kernel"); 97032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_kernel.GetModule().get() 97132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda && m_kernel.GetModule()->GetObjectFile() 97232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda && !m_kernel.GetModule()->GetObjectFile()->GetFileSpec().GetFilename().IsEmpty()) 973fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda { 97432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda kernel_name = m_kernel.GetModule()->GetObjectFile()->GetFileSpec().GetFilename(); 975fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda } 97632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.SetName (kernel_name.AsCString()); 977fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda 97832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_kernel.GetLoadAddress() == LLDB_INVALID_ADDRESS) 979bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 98032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.SetLoadAddress(m_kernel_load_address); 98132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_kernel.GetLoadAddress() == LLDB_INVALID_ADDRESS && m_kernel.GetModule()) 982bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 9839ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton // We didn't get a hint from the process, so we will 9849ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton // try the kernel at the address that it exists at in 9859ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton // the file if we have one 98632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ObjectFile *kernel_object_file = m_kernel.GetModule()->GetObjectFile(); 9879ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton if (kernel_object_file) 988fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda { 989fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda addr_t load_address = kernel_object_file->GetHeaderAddress().GetLoadAddress(&m_process->GetTarget()); 990fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda addr_t file_address = kernel_object_file->GetHeaderAddress().GetFileAddress(); 991fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda if (load_address != LLDB_INVALID_ADDRESS && load_address != 0) 992fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda { 99332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.SetLoadAddress (load_address); 994fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda if (load_address != file_address) 995fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda { 996fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda // Don't accidentally relocate the kernel to the File address -- 997fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda // the Load address has already been set to its actual in-memory address. 998fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda // Mark it as IsLoaded. 99932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.SetProcessStopId (m_process->GetStopID()); 1000fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda } 1001fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda } 1002fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda else 1003fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda { 100432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.SetLoadAddress(file_address); 1005fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda } 1006fac2e62f08719ba800a440b7ad0d5a55a26dc620Jason Molenda } 1007bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1008bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 10099ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton 101032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_kernel.GetLoadAddress() != LLDB_INVALID_ADDRESS) 1011aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton { 1012aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton if (!m_kernel.LoadImageUsingMemoryModule (m_process)) 1013aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton { 1014aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton m_kernel.LoadImageAtFileAddress (m_process); 1015aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton } 1016aa2063089f2397bd21cff2dab2e7c316ae5ff12cGreg Clayton } 10179ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton 101832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_kernel.IsLoaded() && m_kernel.GetModule()) 10199ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton { 10209ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton static ConstString kext_summary_symbol ("gLoadedKextSummaries"); 102132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const Symbol *symbol = m_kernel.GetModule()->FindFirstSymbolWithNameAndType (kext_summary_symbol, eSymbolTypeData); 10229ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton if (symbol) 10239ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton { 10240c31d3d3a4a1d00d53346d8a23b0519f47e55d1fGreg Clayton m_kext_summary_header_ptr_addr = symbol->GetAddress(); 10259ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton // Update all image infos 10269ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton ReadAllKextSummaries (); 10279ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton } 10289ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton } 10299ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton else 10309ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton { 103132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_kernel.Clear(); 10329ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton } 1033bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1034bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1035bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1036bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 1037bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// Static callback function that gets called when our DYLD notification 1038bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// breakpoint gets hit. We update all of our image infos and then 1039bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// let our super class DynamicLoader class decide if we should stop 1040bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// or not (based on global preference). 1041bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 1042bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonbool 104317f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::BreakpointHitCallback (void *baton, 1044645facaf9c247b20f0f135445d437181688711a7Greg Clayton StoppointCallbackContext *context, 1045645facaf9c247b20f0f135445d437181688711a7Greg Clayton user_id_t break_id, 1046645facaf9c247b20f0f135445d437181688711a7Greg Clayton user_id_t break_loc_id) 10478c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton{ 104817f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton return static_cast<DynamicLoaderDarwinKernel*>(baton)->BreakpointHit (context, break_id, break_loc_id); 1049bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1050bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1051bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonbool 105217f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::BreakpointHit (StoppointCallbackContext *context, 1053645facaf9c247b20f0f135445d437181688711a7Greg Clayton user_id_t break_id, 1054645facaf9c247b20f0f135445d437181688711a7Greg Clayton user_id_t break_loc_id) 1055645facaf9c247b20f0f135445d437181688711a7Greg Clayton{ 10567dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton LogSP log(GetLogIfAnyCategoriesSet (LIBLLDB_LOG_DYNAMIC_LOADER)); 10577dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton if (log) 105817f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton log->Printf ("DynamicLoaderDarwinKernel::BreakpointHit (...)\n"); 10597dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton 1060645facaf9c247b20f0f135445d437181688711a7Greg Clayton ReadAllKextSummaries (); 10617dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton 10627dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton if (log) 10637dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton PutToLog(log.get()); 10647dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton 1065645facaf9c247b20f0f135445d437181688711a7Greg Clayton return GetStopWhenImagesChange(); 1066645facaf9c247b20f0f135445d437181688711a7Greg Clayton} 1067645facaf9c247b20f0f135445d437181688711a7Greg Clayton 1068645facaf9c247b20f0f135445d437181688711a7Greg Clayton 1069645facaf9c247b20f0f135445d437181688711a7Greg Claytonbool 107017f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::ReadKextSummaryHeader () 1071bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1072bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Mutex::Locker locker(m_mutex); 1073bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1074bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton // the all image infos is already valid for this process stop ID 1075bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 10767dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton if (m_kext_summary_header_ptr_addr.IsValid()) 1077bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 1078bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton const uint32_t addr_size = m_kernel.GetAddressByteSize (); 1079bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton const ByteOrder byte_order = m_kernel.GetByteOrder(); 1080bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Error error; 1081bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton // Read enough bytes for a "OSKextLoadedKextSummaryHeader" structure 1082bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton // which is currenty 4 uint32_t and a pointer. 1083bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton uint8_t buf[24]; 1084bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton DataExtractor data (buf, sizeof(buf), byte_order, addr_size); 1085bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton const size_t count = 4 * sizeof(uint32_t) + addr_size; 10868c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton const bool prefer_file_cache = false; 10877dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton if (m_process->GetTarget().ReadPointerFromMemory (m_kext_summary_header_ptr_addr, 10887dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton prefer_file_cache, 10897dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton error, 10907dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton m_kext_summary_header_addr)) 1091bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 10927dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton // We got a valid address for our kext summary header and make sure it isn't NULL 10937dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton if (m_kext_summary_header_addr.IsValid() && 10947dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton m_kext_summary_header_addr.GetFileAddress() != 0) 10957dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton { 10967dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton const size_t bytes_read = m_process->GetTarget().ReadMemory (m_kext_summary_header_addr, prefer_file_cache, buf, count, error); 10977dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton if (bytes_read == count) 10987dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton { 109936da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t offset = 0; 11000fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton m_kext_summary_header.version = data.GetU32(&offset); 11010fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton if (m_kext_summary_header.version >= 2) 11020fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton { 11030fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton m_kext_summary_header.entry_size = data.GetU32(&offset); 11040fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton } 11050fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton else 11060fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton { 11070fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton // Versions less than 2 didn't have an entry size, it was hard coded 11080fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton m_kext_summary_header.entry_size = KERNEL_MODULE_ENTRY_SIZE_VERSION_1; 11090fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton } 11100fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton m_kext_summary_header.entry_count = data.GetU32(&offset); 11117dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton return true; 11127dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton } 11137dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton } 1114bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1115bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 11167dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton m_kext_summary_header_addr.Clear(); 1117bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return false; 1118bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1119bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 112032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// We've either (a) just attached to a new kernel, or (b) the kexts-changed breakpoint was hit 112132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// and we need to figure out what kexts have been added or removed. 112232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// Read the kext summaries from the inferior kernel memory, compare them against the 112332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// m_known_kexts vector and update the m_known_kexts vector as needed to keep in sync with the 112432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda// inferior. 1125bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1126bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonbool 112732a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::ParseKextSummaries (const Address &kext_summary_addr, uint32_t count) 1128bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 112932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda KextImageInfo::collection kext_summaries; 1130645facaf9c247b20f0f135445d437181688711a7Greg Clayton LogSP log(GetLogIfAnyCategoriesSet (LIBLLDB_LOG_DYNAMIC_LOADER)); 1131bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (log) 113232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda log->Printf ("Kexts-changed breakpoint hit, there are %d kexts currently.\n", count); 1133bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1134bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Mutex::Locker locker(m_mutex); 1135bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1136bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (!ReadKextSummaries (kext_summary_addr, count, kext_summaries)) 1137bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return false; 1138bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 113932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // By default, all kexts we've loaded in the past are marked as "remove" and all of the kexts 114032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // we just found out about from ReadKextSummaries are marked as "add". 114132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda std::vector<bool> to_be_removed(m_known_kexts.size(), true); 114232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda std::vector<bool> to_be_added(count, true); 114332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 114432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda int number_of_new_kexts_being_added = 0; 114532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda int number_of_old_kexts_being_removed = m_known_kexts.size(); 114632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 114732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const uint32_t new_kexts_size = kext_summaries.size(); 114832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const uint32_t old_kexts_size = m_known_kexts.size(); 114932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 115032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // The m_known_kexts vector may have entries that have been Cleared, 115132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // or are a kernel. 115232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda for (uint32_t old_kext = 0; old_kext < old_kexts_size; old_kext++) 115332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 115432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda bool ignore = false; 115532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda KextImageInfo &image_info = m_known_kexts[old_kext]; 115632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (image_info.IsKernel()) 115732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 115832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ignore = true; 115932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 116032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda else if (image_info.GetLoadAddress() == LLDB_INVALID_ADDRESS && !image_info.GetModule()) 116132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 116232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ignore = true; 116332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 116432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 116532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (ignore) 116632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 116732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda number_of_old_kexts_being_removed--; 116832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda to_be_removed[old_kext] = false; 116932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 117032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 117132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 117232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // Scan over the list of kexts we just read from the kernel, note those that 117332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // need to be added and those already loaded. 117432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda for (uint32_t new_kext = 0; new_kext < new_kexts_size; new_kext++) 117532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 117632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda bool add_this_one = true; 117732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda for (uint32_t old_kext = 0; old_kext < old_kexts_size; old_kext++) 117832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 117932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_known_kexts[old_kext] == kext_summaries[new_kext]) 118032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 118132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // We already have this kext, don't re-load it. 118232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda to_be_added[new_kext] = false; 118332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // This kext is still present, do not remove it. 118432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda to_be_removed[old_kext] = false; 118532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 118632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda number_of_old_kexts_being_removed--; 118732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda add_this_one = false; 118832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda break; 118932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 119032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 119132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (add_this_one) 119232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 119332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda number_of_new_kexts_being_added++; 119432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 119532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 119632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 119732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (number_of_new_kexts_being_added == 0 && number_of_old_kexts_being_removed == 0) 119832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return true; 119932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 1200234981a4559db084f9c90612660e40f19915b89cGreg Clayton Stream *s = &m_process->GetTarget().GetDebugger().GetOutputStream(); 12014952db8c76f619e3d8a0cf13456097128009d67bJason Molenda if (s) 1202bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 120332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (number_of_new_kexts_being_added > 0 && number_of_old_kexts_being_removed > 0) 120432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 120532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda s->Printf ("Loading %d kext modules and unloading %d kext modules ", number_of_new_kexts_being_added, number_of_old_kexts_being_removed); 120632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 120732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda else if (number_of_new_kexts_being_added > 0) 120832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 120932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda s->Printf ("Loading %d kext modules ", number_of_new_kexts_being_added); 121032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 121132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda else if (number_of_old_kexts_being_removed > 0) 121232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 121332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda s->Printf ("Unloading %d kext modules ", number_of_old_kexts_being_removed); 121432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 121532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 12169ce953807eb814a93b449dc243de4f7bf32c3115Greg Clayton 121732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (log) 121832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda log->Printf ("DynamicLoaderDarwinKernel::ParseKextSummaries: %d kexts added, %d kexts removed", number_of_new_kexts_being_added, number_of_old_kexts_being_removed); 12194952db8c76f619e3d8a0cf13456097128009d67bJason Molenda 122032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (number_of_new_kexts_being_added > 0) 122132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 122232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ModuleList loaded_module_list; 122332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 122432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const uint32_t num_of_new_kexts = kext_summaries.size(); 122532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda for (uint32_t new_kext = 0; new_kext < num_of_new_kexts; new_kext++) 122632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 122732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (to_be_added[new_kext] == true) 122832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 122932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda KextImageInfo &image_info = kext_summaries[new_kext]; 123032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (!image_info.LoadImageUsingMemoryModule (m_process)) 123132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda image_info.LoadImageAtFileAddress (m_process); 123232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 123332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_known_kexts.push_back(image_info); 123432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 123532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (image_info.GetModule() && m_process->GetStopID() == image_info.GetProcessStopId()) 123632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda loaded_module_list.AppendIfNeeded (image_info.GetModule()); 123732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 123832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (s) 123932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda s->Printf ("."); 124032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 124132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (log) 124232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda kext_summaries[new_kext].PutToLog (log.get()); 124332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 124432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 124532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_process->GetTarget().ModulesDidLoad (loaded_module_list); 1246bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 124732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 124832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (number_of_old_kexts_being_removed > 0) 124932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 125032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ModuleList loaded_module_list; 125132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const uint32_t num_of_old_kexts = m_known_kexts.size(); 125232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda for (uint32_t old_kext = 0; old_kext < num_of_old_kexts; old_kext++) 125332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 125432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda ModuleList unloaded_module_list; 125532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (to_be_removed[old_kext]) 125632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 125732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda KextImageInfo &image_info = m_known_kexts[old_kext]; 125832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // You can't unload the kernel. 125932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (!image_info.IsKernel()) 126032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 126132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (image_info.GetModule()) 126232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda { 126332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda unloaded_module_list.AppendIfNeeded (image_info.GetModule()); 126432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 126532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (s) 126632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda s->Printf ("."); 126732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda image_info.Clear(); 126832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // should pull it out of the KextImageInfos vector but that would mutate the list and invalidate 126932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda // the to_be_removed bool vector; leaving it in place once Cleared() is relatively harmless. 127032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 127132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 127232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_process->GetTarget().ModulesDidUnload (unloaded_module_list); 127332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 127432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda } 127532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda 12764952db8c76f619e3d8a0cf13456097128009d67bJason Molenda if (s) 12774952db8c76f619e3d8a0cf13456097128009d67bJason Molenda { 12784952db8c76f619e3d8a0cf13456097128009d67bJason Molenda s->Printf (" done.\n"); 12794952db8c76f619e3d8a0cf13456097128009d67bJason Molenda s->Flush (); 12804952db8c76f619e3d8a0cf13456097128009d67bJason Molenda } 12814952db8c76f619e3d8a0cf13456097128009d67bJason Molenda 128232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda return true; 1283bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1284bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1285bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonuint32_t 128617f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::ReadKextSummaries (const Address &kext_summary_addr, 1287bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton uint32_t image_infos_count, 128832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda KextImageInfo::collection &image_infos) 1289bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1290bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton const ByteOrder endian = m_kernel.GetByteOrder(); 1291bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton const uint32_t addr_size = m_kernel.GetAddressByteSize(); 1292bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1293bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton image_infos.resize(image_infos_count); 1294bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton const size_t count = image_infos.size() * m_kext_summary_header.entry_size; 1295bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton DataBufferHeap data(count, 0); 1296bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Error error; 12977b13922c3c6b55225fa8403762c0399e9692b730Greg Clayton 12988c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton const bool prefer_file_cache = false; 12998c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton const size_t bytes_read = m_process->GetTarget().ReadMemory (kext_summary_addr, 13008c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton prefer_file_cache, 13018c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton data.GetBytes(), 13028c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton data.GetByteSize(), 13038c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton error); 1304bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (bytes_read == count) 1305bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 13060fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton 1307bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton DataExtractor extractor (data.GetBytes(), data.GetByteSize(), endian, addr_size); 1308bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton uint32_t i=0; 13090fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton for (uint32_t kext_summary_offset = 0; 13100fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton i < image_infos.size() && extractor.ValidOffsetForDataOfSize(kext_summary_offset, m_kext_summary_header.entry_size); 13110fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton ++i, kext_summary_offset += m_kext_summary_header.entry_size) 1312bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 131336da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t offset = kext_summary_offset; 1314bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton const void *name_data = extractor.GetData(&offset, KERNEL_MODULE_MAX_NAME); 1315bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (name_data == NULL) 1316bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton break; 131732a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda image_infos[i].SetName ((const char *) name_data); 131832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda UUID uuid (extractor.GetData (&offset, 16), 16); 131932a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda image_infos[i].SetUUID (uuid); 132032a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda image_infos[i].SetLoadAddress (extractor.GetU64(&offset)); 132132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda image_infos[i].SetSize (extractor.GetU64(&offset)); 1322bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1323bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (i < image_infos.size()) 1324bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton image_infos.resize(i); 1325bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1326bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton else 1327bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 1328bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton image_infos.clear(); 1329bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1330bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return image_infos.size(); 1331bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1332bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1333bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonbool 133417f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::ReadAllKextSummaries () 1335bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1336645facaf9c247b20f0f135445d437181688711a7Greg Clayton LogSP log(GetLogIfAnyCategoriesSet (LIBLLDB_LOG_DYNAMIC_LOADER)); 1337bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1338bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Mutex::Locker locker(m_mutex); 1339645facaf9c247b20f0f135445d437181688711a7Greg Clayton 1340bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (ReadKextSummaryHeader ()) 1341bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 1342645facaf9c247b20f0f135445d437181688711a7Greg Clayton if (m_kext_summary_header.entry_count > 0 && m_kext_summary_header_addr.IsValid()) 1343bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 13448c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton Address summary_addr (m_kext_summary_header_addr); 13450fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton summary_addr.Slide(m_kext_summary_header.GetSize()); 13468c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton if (!ParseKextSummaries (summary_addr, m_kext_summary_header.entry_count)) 1347bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 134832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_known_kexts.clear(); 1349bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1350bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return true; 1351bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1352bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1353bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return false; 1354bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1355bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1356bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 1357bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// Dump an image info structure to the file handle provided. 1358bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 1359bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 136032a45285f51d27b91f17ea15124ef44a2efd2511Jason MolendaDynamicLoaderDarwinKernel::KextImageInfo::PutToLog (Log *log) const 1361bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1362bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (log == NULL) 1363bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return; 136432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const uint8_t *u = (uint8_t *) m_uuid.GetBytes(); 1365bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 136632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_load_address == LLDB_INVALID_ADDRESS) 1367bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 1368bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (u) 1369bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 13700fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton log->Printf("\tuuid=%2.2X%2.2X%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X name=\"%s\" (UNLOADED)", 1371bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton u[ 0], u[ 1], u[ 2], u[ 3], 1372bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton u[ 4], u[ 5], u[ 6], u[ 7], 1373bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton u[ 8], u[ 9], u[10], u[11], 1374bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton u[12], u[13], u[14], u[15], 137532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_name.c_str()); 1376bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1377bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton else 137832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda log->Printf("\tname=\"%s\" (UNLOADED)", m_name.c_str()); 1379bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1380bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton else 1381bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 1382bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (u) 1383bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 138432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda log->Printf("\taddr=0x%16.16" PRIx64 " size=0x%16.16" PRIx64 " uuid=%2.2X%2.2X%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X-%2.2X%2.2X%2.2X%2.2X%2.2X%2.2X name=\"%s\"", 138532a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_load_address, m_size, 13860fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton u[ 0], u[ 1], u[ 2], u[ 3], u[ 4], u[ 5], u[ 6], u[ 7], 13870fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton u[ 8], u[ 9], u[10], u[11], u[12], u[13], u[14], u[15], 138832a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_name.c_str()); 1389bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1390bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton else 1391bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 139232a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda log->Printf("\t[0x%16.16" PRIx64 " - 0x%16.16" PRIx64 ") name=\"%s\"", 139332a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_load_address, m_load_address+m_size, m_name.c_str()); 1394bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1395bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1396bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1397bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1398bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 1399bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// Dump the _dyld_all_image_infos members and all current image infos 1400bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// that we have parsed to the file handle provided. 1401bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 1402bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 140317f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::PutToLog(Log *log) const 1404bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1405bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (log == NULL) 1406bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return; 1407bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1408bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Mutex::Locker locker(m_mutex); 14095f35a4be95aed0e5b2cb36f7d785bcbfc67284aeDaniel Malea log->Printf("gLoadedKextSummaries = 0x%16.16" PRIx64 " { version=%u, entry_size=%u, entry_count=%u }", 14108c547d425c39c58bfd76e31b3a567f8ca27b3617Greg Clayton m_kext_summary_header_addr.GetFileAddress(), 1411bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton m_kext_summary_header.version, 1412bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton m_kext_summary_header.entry_size, 14130fa512447e00da09d300fbabd18b5ce94f52fdaaGreg Clayton m_kext_summary_header.entry_count); 1414bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1415bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton size_t i; 141632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda const size_t count = m_known_kexts.size(); 1417bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton if (count > 0) 1418bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 1419bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton log->PutCString("Loaded:"); 1420bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton for (i = 0; i<count; i++) 142132a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda m_known_kexts[i].PutToLog(log); 1422bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1423bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1424bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1425bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 142617f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::PrivateInitialize(Process *process) 1427bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 142817f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton DEBUG_PRINTF("DynamicLoaderDarwinKernel::%s() process state = %s\n", __FUNCTION__, StateAsCString(m_process->GetState())); 1429bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Clear(true); 1430bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton m_process = process; 1431bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1432bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1433645facaf9c247b20f0f135445d437181688711a7Greg Claytonvoid 143417f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::SetNotificationBreakpointIfNeeded () 1435bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 143632a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda if (m_break_id == LLDB_INVALID_BREAK_ID && m_kernel.GetModule()) 1437645facaf9c247b20f0f135445d437181688711a7Greg Clayton { 143817f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton DEBUG_PRINTF("DynamicLoaderDarwinKernel::%s() process state = %s\n", __FUNCTION__, StateAsCString(m_process->GetState())); 1439645facaf9c247b20f0f135445d437181688711a7Greg Clayton 14407dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton 14412cf5ccbbbe3343a6c973d0d65ad5de178a414e30Jim Ingham const bool internal_bp = true; 14427dd98df0d69447d3f42b8044b7cda2c089aea653Greg Clayton const LazyBool skip_prologue = eLazyBoolNo; 144303c8ee5aeafcd6c43f10002a4f8096af01780f86Jim Ingham FileSpecList module_spec_list; 144432a45285f51d27b91f17ea15124ef44a2efd2511Jason Molenda module_spec_list.Append (m_kernel.GetModule()->GetFileSpec()); 144503c8ee5aeafcd6c43f10002a4f8096af01780f86Jim Ingham Breakpoint *bp = m_process->GetTarget().CreateBreakpoint (&module_spec_list, 1446d6d47976b71187907c1cdeea86fabf7d5534314fJim Ingham NULL, 1447645facaf9c247b20f0f135445d437181688711a7Greg Clayton "OSKextLoadedKextSummariesUpdated", 1448645facaf9c247b20f0f135445d437181688711a7Greg Clayton eFunctionNameTypeFull, 14492cf5ccbbbe3343a6c973d0d65ad5de178a414e30Jim Ingham skip_prologue, 14502cf5ccbbbe3343a6c973d0d65ad5de178a414e30Jim Ingham internal_bp).get(); 1451645facaf9c247b20f0f135445d437181688711a7Greg Clayton 145217f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton bp->SetCallback (DynamicLoaderDarwinKernel::BreakpointHitCallback, this, true); 1453645facaf9c247b20f0f135445d437181688711a7Greg Clayton m_break_id = bp->GetID(); 1454645facaf9c247b20f0f135445d437181688711a7Greg Clayton } 1455bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1456bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1457bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 1458bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// Member function that gets called when the process state changes. 1459bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//---------------------------------------------------------------------- 1460bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 146117f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::PrivateProcessStateChanged (Process *process, StateType state) 1462bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 146317f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton DEBUG_PRINTF("DynamicLoaderDarwinKernel::%s(%s)\n", __FUNCTION__, StateAsCString(state)); 1464bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton switch (state) 1465bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton { 1466bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateConnected: 1467bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateAttaching: 1468bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateLaunching: 1469bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateInvalid: 1470bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateUnloaded: 1471bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateExited: 1472bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateDetached: 1473bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Clear(false); 1474bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton break; 1475bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1476bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateStopped: 1477645facaf9c247b20f0f135445d437181688711a7Greg Clayton UpdateIfNeeded(); 1478bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton break; 1479bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1480bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateRunning: 1481bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateStepping: 1482bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateCrashed: 1483bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton case eStateSuspended: 1484bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton break; 1485bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton } 1486bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1487bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1488bbea13375ec4ae876576fcb8608626d45880dd96Greg ClaytonThreadPlanSP 148917f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::GetStepThroughTrampolinePlan (Thread &thread, bool stop_others) 1490bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1491bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton ThreadPlanSP thread_plan_sp; 1492645facaf9c247b20f0f135445d437181688711a7Greg Clayton LogSP log(GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP)); 1493645facaf9c247b20f0f135445d437181688711a7Greg Clayton if (log) 1494645facaf9c247b20f0f135445d437181688711a7Greg Clayton log->Printf ("Could not find symbol for step through."); 1495bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return thread_plan_sp; 1496bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1497bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1498bbea13375ec4ae876576fcb8608626d45880dd96Greg ClaytonError 149917f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::CanLoadImage () 1500bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1501bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton Error error; 1502bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton error.SetErrorString("always unsafe to load or unload shared libraries in the darwin kernel"); 1503bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return error; 1504bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1505bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1506bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 150717f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::Initialize() 1508bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1509bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton PluginManager::RegisterPlugin (GetPluginNameStatic(), 1510bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton GetPluginDescriptionStatic(), 151187e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton CreateInstance, 151287e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton DebuggerInitialize); 1513bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1514bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1515bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonvoid 151617f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::Terminate() 1517bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1518bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton PluginManager::UnregisterPlugin (CreateInstance); 1519bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1520bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 152187e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Claytonvoid 152287e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg ClaytonDynamicLoaderDarwinKernel::DebuggerInitialize (lldb_private::Debugger &debugger) 152387e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton{ 152487e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton if (!PluginManager::GetSettingForDynamicLoaderPlugin (debugger, DynamicLoaderDarwinKernelProperties::GetSettingName())) 152587e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton { 152687e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton const bool is_global_setting = true; 152787e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton PluginManager::CreateSettingForDynamicLoaderPlugin (debugger, 152887e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton GetGlobalProperties()->GetValueProperties(), 152987e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton ConstString ("Properties for the DynamicLoaderDarwinKernel plug-in."), 153087e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton is_global_setting); 153187e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton } 153287e9d32a982a0fb76b8657a897ad5781f9a5d25eGreg Clayton} 1533bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1534bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonconst char * 153517f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::GetPluginNameStatic() 1536bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 15372acbc2a80c0116454426db2d8b55bc23e6cbb0c1Greg Clayton return "dynamic-loader.darwin-kernel"; 1538bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1539bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1540bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonconst char * 154117f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::GetPluginDescriptionStatic() 1542bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1543bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return "Dynamic loader plug-in that watches for shared library loads/unloads in the MacOSX kernel."; 1544bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1545bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1546bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1547bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//------------------------------------------------------------------ 1548bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton// PluginInterface protocol 1549bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton//------------------------------------------------------------------ 1550bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonconst char * 155117f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::GetPluginName() 1552bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 155317f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg Clayton return "DynamicLoaderDarwinKernel"; 1554bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1555bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1556bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonconst char * 155717f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::GetShortPluginName() 1558bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1559bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return GetPluginNameStatic(); 1560bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1561bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 1562bbea13375ec4ae876576fcb8608626d45880dd96Greg Claytonuint32_t 156317f3d054e3d27fb7ce0892945c6ffb6c11516f88Greg ClaytonDynamicLoaderDarwinKernel::GetPluginVersion() 1564bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton{ 1565bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton return 1; 1566bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton} 1567bbea13375ec4ae876576fcb8608626d45880dd96Greg Clayton 156849ce8969d3154e1560106cfe530444c09410f217Greg Claytonlldb::ByteOrder 156949ce8969d3154e1560106cfe530444c09410f217Greg ClaytonDynamicLoaderDarwinKernel::GetByteOrderFromMagic (uint32_t magic) 157049ce8969d3154e1560106cfe530444c09410f217Greg Clayton{ 157149ce8969d3154e1560106cfe530444c09410f217Greg Clayton switch (magic) 157249ce8969d3154e1560106cfe530444c09410f217Greg Clayton { 157349ce8969d3154e1560106cfe530444c09410f217Greg Clayton case llvm::MachO::HeaderMagic32: 157449ce8969d3154e1560106cfe530444c09410f217Greg Clayton case llvm::MachO::HeaderMagic64: 157549ce8969d3154e1560106cfe530444c09410f217Greg Clayton return lldb::endian::InlHostByteOrder(); 157649ce8969d3154e1560106cfe530444c09410f217Greg Clayton 157749ce8969d3154e1560106cfe530444c09410f217Greg Clayton case llvm::MachO::HeaderMagic32Swapped: 157849ce8969d3154e1560106cfe530444c09410f217Greg Clayton case llvm::MachO::HeaderMagic64Swapped: 157949ce8969d3154e1560106cfe530444c09410f217Greg Clayton if (lldb::endian::InlHostByteOrder() == lldb::eByteOrderBig) 158049ce8969d3154e1560106cfe530444c09410f217Greg Clayton return lldb::eByteOrderLittle; 158149ce8969d3154e1560106cfe530444c09410f217Greg Clayton else 158249ce8969d3154e1560106cfe530444c09410f217Greg Clayton return lldb::eByteOrderBig; 158349ce8969d3154e1560106cfe530444c09410f217Greg Clayton 158449ce8969d3154e1560106cfe530444c09410f217Greg Clayton default: 158549ce8969d3154e1560106cfe530444c09410f217Greg Clayton break; 158649ce8969d3154e1560106cfe530444c09410f217Greg Clayton } 158749ce8969d3154e1560106cfe530444c09410f217Greg Clayton return lldb::eByteOrderInvalid; 158849ce8969d3154e1560106cfe530444c09410f217Greg Clayton} 158949ce8969d3154e1560106cfe530444c09410f217Greg Clayton 1590