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Diffstat (limited to 'tools/debugserver/source/MacOSX/MachTask.h')
| -rw-r--r-- | tools/debugserver/source/MacOSX/MachTask.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/tools/debugserver/source/MacOSX/MachTask.h b/tools/debugserver/source/MacOSX/MachTask.h new file mode 100644 index 000000000000..96b991478c78 --- /dev/null +++ b/tools/debugserver/source/MacOSX/MachTask.h @@ -0,0 +1,134 @@ +//===-- MachTask.h ----------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +//---------------------------------------------------------------------- +// +// MachTask.h +// debugserver +// +// Created by Greg Clayton on 12/5/08. +// +//===----------------------------------------------------------------------===// + +#ifndef __MachTask_h__ +#define __MachTask_h__ + +// C Includes +#include <mach/mach.h> +#include <sys/socket.h> +// C++ Includes +#include <map> +#include <string> +// Other libraries and framework includes +// Project includes +#include "DNBDefs.h" +#include "MachException.h" +#include "MachVMMemory.h" +#include "PThreadMutex.h" + +class MachProcess; + +typedef uint64_t MachMallocEventId; + +enum MachMallocEventType +{ + eMachMallocEventTypeAlloc = 2, + eMachMallocEventTypeDealloc = 4, + eMachMallocEventTypeOther = 1 +}; + +struct MachMallocEvent +{ + mach_vm_address_t m_base_address; + uint64_t m_size; + MachMallocEventType m_event_type; + MachMallocEventId m_event_id; +}; + +class MachTask +{ +public: + //------------------------------------------------------------------ + // Constructors and Destructors + //------------------------------------------------------------------ + MachTask (MachProcess *process); + virtual ~MachTask (); + + void Clear (); + + kern_return_t Suspend (); + kern_return_t Resume (); + + nub_size_t ReadMemory (nub_addr_t addr, nub_size_t size, void *buf); + nub_size_t WriteMemory (nub_addr_t addr, nub_size_t size, const void *buf); + int GetMemoryRegionInfo (nub_addr_t addr, DNBRegionInfo *region_info); + std::string GetProfileData (DNBProfileDataScanType scanType); + + nub_addr_t AllocateMemory (nub_size_t size, uint32_t permissions); + nub_bool_t DeallocateMemory (nub_addr_t addr); + + mach_port_t ExceptionPort () const; + bool ExceptionPortIsValid () const; + kern_return_t SaveExceptionPortInfo (); + kern_return_t RestoreExceptionPortInfo (); + kern_return_t ShutDownExcecptionThread (); + + bool StartExceptionThread (DNBError &err); + nub_addr_t GetDYLDAllImageInfosAddress (DNBError& err); + kern_return_t BasicInfo (struct task_basic_info *info); + static kern_return_t BasicInfo (task_t task, struct task_basic_info *info); + bool IsValid () const; + static bool IsValid (task_t task); + static void * ExceptionThread (void *arg); + task_t TaskPort () const { return m_task; } + task_t TaskPortForProcessID (DNBError &err, bool force = false); + static task_t TaskPortForProcessID (pid_t pid, DNBError &err, uint32_t num_retries = 10, uint32_t usec_interval = 10000); + + MachProcess * Process () { return m_process; } + const MachProcess * Process () const { return m_process; } + + nub_size_t PageSize (); + + bool HasMallocLoggingEnabled (); + + // enumerate the malloc records for a given address (starting with Mac OS X 10.6 Snow Leopard it should include + // all allocations that *include* address, rather than just those *starting* at address) + bool EnumerateMallocRecords (mach_vm_address_t address, + MachMallocEvent *event_buffer, + uint32_t buffer_size, + uint32_t *count); + + // enumerate every malloc record generated by this task, no matter what the address + bool EnumerateMallocRecords (MachMallocEvent *event_buffer, + uint32_t buffer_size, + uint32_t *count); + + // given a malloc event, report every stack frame that led to this event + bool EnumerateMallocFrames (MachMallocEventId event_id, + mach_vm_address_t *function_addresses_buffer, + uint32_t buffer_size, + uint32_t *count); + +protected: + MachProcess * m_process; // The mach process that owns this MachTask + task_t m_task; + MachVMMemory m_vm_memory; // Special mach memory reading class that will take care of watching for page and region boundaries + MachException::PortInfo + m_exc_port_info; // Saved settings for all exception ports + pthread_t m_exception_thread; // Thread ID for the exception thread in case we need it + mach_port_t m_exception_port; // Exception port on which we will receive child exceptions + + typedef std::map <mach_vm_address_t, size_t> allocation_collection; + allocation_collection m_allocations; + +private: + MachTask(const MachTask&); // Outlaw + MachTask& operator=(const MachTask& rhs);// Outlaw +}; + +#endif // __MachTask_h__ |