ttg::detail::MemoryWatchpoint_x86_64 Class Reference

MemoryWatchpoint represents a hardware watchpoint for a memory location Implements a memory watchpoint on x86 ... only implemented for macOS so far this is a slightly tweaked version of https://m.habrahabr.ru/post/103073/ see also http://www.sandpile.org/x86/drx.htm for the x86 debugging register map. More...

#include <bug.h>

Classes
class	Pool
	a singleton pool of MemoryWatchpoint objects More...

Public Types
enum	DebugRegister { kDR0 = 0 , kDR1 = 1 , kDR2 = 2 , kDR3 = 3 }
enum	Size { kByte = 0 , kHalfWord = 1 , kWord = 3 , kSizeMask = 3 }
enum	BreakState { kDisabled = 0 , kEnabledLocally = 1 , kEnabledGlobally = 2 , kBreakStateMask = 3 }
enum	Condition { kWhenExecuted = 0 , kWhenWritten = 1 , kWhenWrittenOrRead = 3 , kConditionMask = 3 }

Public Member Functions
	MemoryWatchpoint_x86_64 (void *addr, Size size, Condition cond, DebugRegister dr, const pthread_t *thread)
	creates a MemoryWatchpoint watching memory window [addr,addr+size) for condition cond from threads threads
	~MemoryWatchpoint_x86_64 ()
void *	address () const
Size	size () const
Condition	condition () const
DebugRegister	debug_register () const

Friends
class	MemoryWatchPool

Detailed Description

MemoryWatchpoint represents a hardware watchpoint for a memory location Implements a memory watchpoint on x86 ... only implemented for macOS so far this is a slightly tweaked version of https://m.habrahabr.ru/post/103073/ see also http://www.sandpile.org/x86/drx.htm for the x86 debugging register map.

Definition at line 50 of file bug.h.

Member Enumeration Documentation

BreakState

enum ttg::detail::MemoryWatchpoint_x86_64::BreakState

Enumerator
kDisabled
kEnabledLocally
kEnabledGlobally
kBreakStateMask

Definition at line 64 of file bug.h.

Condition

enum ttg::detail::MemoryWatchpoint_x86_64::Condition

Enumerator
kWhenExecuted
kWhenWritten
kWhenWrittenOrRead
kConditionMask

Definition at line 71 of file bug.h.

DebugRegister

enum ttg::detail::MemoryWatchpoint_x86_64::DebugRegister

Enumerator
kDR0
kDR1
kDR2
kDR3

Definition at line 54 of file bug.h.

Size

enum ttg::detail::MemoryWatchpoint_x86_64::Size

Enumerator
kByte
kHalfWord
kWord
kSizeMask

Definition at line 56 of file bug.h.

Constructor & Destructor Documentation

MemoryWatchpoint_x86_64()

ttg::detail::MemoryWatchpoint_x86_64::MemoryWatchpoint_x86_64 ( void *  addr, Size  size, Condition  cond, DebugRegister  dr, const pthread_t *  thread  )

inline

creates a MemoryWatchpoint watching memory window [addr,addr+size) for condition cond from threads threads

Parameters

[in]	addr	the beginning of the memory window
[in]	size	the size of the memory window
[in]	cond	the condition to watch for
[in]	dr	the debugging register to use
[in]	thread	the thread to watch

Exceptions

std::runtime_error

if setting the watchpoint fails (either due to the lack of available registers or another reason)

Definition at line 184 of file bug.h.

~MemoryWatchpoint_x86_64()

ttg::detail::MemoryWatchpoint_x86_64::~MemoryWatchpoint_x86_64 ( )

inline

Definition at line 189 of file bug.h.

Member Function Documentation

address()

void * ttg::detail::MemoryWatchpoint_x86_64::address ( ) const

inline

Definition at line 191 of file bug.h.

condition()

Condition ttg::detail::MemoryWatchpoint_x86_64::condition ( ) const

inline

Definition at line 193 of file bug.h.

debug_register()

DebugRegister ttg::detail::MemoryWatchpoint_x86_64::debug_register ( ) const

inline

Definition at line 194 of file bug.h.

size()

Size ttg::detail::MemoryWatchpoint_x86_64::size ( ) const

inline

Definition at line 192 of file bug.h.

Here is the caller graph for this function:

Friends And Related Symbol Documentation

MemoryWatchPool

friend class MemoryWatchPool

friend

Definition at line 210 of file bug.h.

---

The documentation for this class was generated from the following file:

• ttg/ttg/util/bug.h