dart::CodeBreakpoint Class Reference

#include <debugger.h>

Public Member Functions
	CodeBreakpoint (const Code &code, BreakpointLocation *loc, uword pc, UntaggedPcDescriptors::Kind kind)
	~CodeBreakpoint ()
FunctionPtr	function () const
uword	pc () const
bool	HasBreakpointLocation (BreakpointLocation *breakpoint_location)
bool	FindAndDeleteBreakpointLocation (BreakpointLocation *breakpoint_location)
bool	HasNoBreakpointLocations ()
void	Enable ()
void	Disable ()
bool	IsEnabled () const
CodePtr	OrigStubAddress () const
const char *	ToCString () const

Friends
class	Debugger
class	GroupDebugger

Detailed Description

Definition at line 208 of file debugger.h.

Constructor & Destructor Documentation

CodeBreakpoint()

dart::CodeBreakpoint::CodeBreakpoint	(	const Code &	code,
		BreakpointLocation *	loc,
		uword	pc,
		UntaggedPcDescriptors::Kind	kind
	)

Definition at line 1317 of file debugger.cc.

    : code_(code.ptr()),
      pc_(pc),
      enabled_count_(0),
      next_(nullptr),
      breakpoint_kind_(kind),
      saved_value_(Code::null()) {
  ASSERT(!code.IsNull());
  ASSERT(pc_ != 0);
  ASSERT((breakpoint_kind_ & kSafepointKind) != 0);
  AddBreakpointLocation(breakpoint_location);
  ASSERT(breakpoint_location->token_pos().IsReal());
}

~CodeBreakpoint()

dart::CodeBreakpoint::~CodeBreakpoint

(

)

Definition at line 1334 of file debugger.cc.

                                {
  // Make sure we don't leave patched code behind.
  ASSERT(!IsEnabled());
// Poison the data so we catch use after free errors.
#ifdef DEBUG
  code_ = Code::null();
  pc_ = 0ul;
  next_ = nullptr;
  breakpoint_kind_ = UntaggedPcDescriptors::kOther;
#endif
}

Member Function Documentation

Disable()

void dart::CodeBreakpoint::Disable

(

)

Definition at line 1353 of file debugger.cc.

                             {
  if (enabled_count_ == 1) {
    RestoreCode();
  }
  --enabled_count_;
}

Enable()

void dart::CodeBreakpoint::Enable

(

)

Definition at line 1346 of file debugger.cc.

                            {
  if (enabled_count_ == 0) {
    PatchCode();
  }
  ++enabled_count_;
}

FindAndDeleteBreakpointLocation()

bool dart::CodeBreakpoint::FindAndDeleteBreakpointLocation

(

BreakpointLocation *

breakpoint_location

)

Definition at line 1370 of file debugger.cc.

                                             {
  for (intptr_t i = 0; i < breakpoint_locations_.length(); i++) {
    if (breakpoint_locations_[i] == breakpoint_location) {
      breakpoint_locations_.EraseAt(i);
      return true;
    }
  }
  return false;
}

function()

FunctionPtr dart::CodeBreakpoint::function ( ) const

inline

Definition at line 222 of file debugger.h.

{ return Code::Handle(code_).function(); }

HasBreakpointLocation()

bool dart::CodeBreakpoint::HasBreakpointLocation

(

BreakpointLocation *

breakpoint_location

)

Definition at line 1360 of file debugger.cc.

                                             {
  for (intptr_t i = 0; i < breakpoint_locations_.length(); i++) {
    if (breakpoint_locations_[i] == breakpoint_location) {
      return true;
    }
  }
  return false;
}

HasNoBreakpointLocations()

bool dart::CodeBreakpoint::HasNoBreakpointLocations ( )

inline

Definition at line 227 of file debugger.h.

                                  {
    return breakpoint_locations_.length() == 0;
  }

IsEnabled()

bool dart::CodeBreakpoint::IsEnabled ( ) const

inline

Definition at line 233 of file debugger.h.

{ return enabled_count_ > 0; }

OrigStubAddress()

CodePtr dart::CodeBreakpoint::OrigStubAddress

(

)

const

pc()

uword dart::CodeBreakpoint::pc ( ) const

inline

Definition at line 224 of file debugger.h.

{ return pc_; }

ToCString()

const char * dart::CodeBreakpoint::ToCString

(

)

const

Definition at line 211 of file debugger.cc.

                                            {
  if (breakpoint_locations_.length() == 0) {
    return "unlinked breakpoint";
  }
 
  char buffer[1024];
  BufferFormatter f(buffer, sizeof(buffer));
  // Pick the first, all other should have same script/line number.
  BreakpointLocation* breakpoint_location = breakpoint_locations_.At(0);
  String& source_url = String::Handle(breakpoint_location->url());
  intptr_t line_number = breakpoint_location->line_number();
 
  f.Printf("breakpoint at %s:%" Pd, source_url.ToCString(), line_number);
  return Thread::Current()->zone()->MakeCopyOfString(buffer);
}

Friends And Related Symbol Documentation

Debugger

friend class Debugger

friend

Definition at line 273 of file debugger.h.

GroupDebugger

friend class GroupDebugger

friend

Definition at line 274 of file debugger.h.

---

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

• third_party/dart-lang/sdk/runtime/vm/debugger.h
• third_party/dart-lang/sdk/runtime/vm/debugger.cc