188d326b0935b802e71e3a75e02f31fae8c2af96cmstarzinger@chromium.org// Copyright 2012 the V8 project authors. All rights reserved. 23484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org// Use of this source code is governed by a BSD-style license that can be 33484964a86451e86dcf04be9bd8c0d76ee04f081rossberg@chromium.org// found in the LICENSE file. 443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 55ec4892aef9cca42940d7d92302abf674365f6b7ager@chromium.org#ifndef V8_DEBUG_H_ 65ec4892aef9cca42940d7d92302abf674365f6b7ager@chromium.org#define V8_DEBUG_H_ 743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 8196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/allocation.h" 9196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/arguments.h" 10196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/assembler.h" 115de0074a922429f5e0ec2cf140c2d2989bf88140yangguo@chromium.org#include "src/base/platform/platform.h" 12196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/execution.h" 13196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/factory.h" 14196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/flags.h" 15196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/frames-inl.h" 16196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/hashmap.h" 17196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/liveedit.h" 18196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/string-stream.h" 19196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "src/v8threads.h" 20196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org 21196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org#include "include/v8-debug.h" 2243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 2371affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.orgnamespace v8 { 2471affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.orgnamespace internal { 2543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 267be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org 277be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org// Forward declarations. 28196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.orgclass DebugScope; 297be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org 307be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org 3143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// Step actions. NOTE: These values are in macros.py as well. 3243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansenenum StepAction { 3343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen StepNone = -1, // Stepping not prepared. 3443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen StepOut = 0, // Step out of the current function. 3543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen StepNext = 1, // Step to the next statement in the current function. 3643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen StepIn = 2, // Step into new functions invoked or the next statement 3743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // in the current function. 3843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen StepMin = 3, // Perform a minimum step in the current function. 3943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen StepInMin = 4 // Step into new functions invoked or perform a minimum step 4043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // in the current function. 4143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen}; 4243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 4343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 4443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// Type of exception break. NOTE: These values are in macros.py as well. 4543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansenenum ExceptionBreakType { 4643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen BreakException = 0, 4743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen BreakUncaughtException = 1 4843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen}; 4943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 5043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 5143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// Type of exception break. NOTE: These values are in macros.py as well. 5243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansenenum BreakLocatorType { 5343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen ALL_BREAK_LOCATIONS = 0, 5443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen SOURCE_BREAK_LOCATIONS = 1 5543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen}; 5643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 5743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 5893a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org// The different types of breakpoint position alignments. 5993a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org// Must match Debug.BreakPositionAlignment in debug-debugger.js 6093a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.orgenum BreakPositionAlignment { 6193a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org STATEMENT_ALIGNED = 0, 6293a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org BREAK_POSITION_ALIGNED = 1 6393a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org}; 6493a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org 6593a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org 6643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// Class for iterating through the break points in a function and changing 6743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// them. 6843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansenclass BreakLocationIterator { 6943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen public: 7043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen explicit BreakLocationIterator(Handle<DebugInfo> debug_info, 7143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen BreakLocatorType type); 7243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen virtual ~BreakLocationIterator(); 7343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 7443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void Next(); 7543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void Next(int count); 7643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void FindBreakLocationFromAddress(Address pc); 7793a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org void FindBreakLocationFromPosition(int position, 7893a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org BreakPositionAlignment alignment); 7943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void Reset(); 8043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen bool Done() const; 8143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void SetBreakPoint(Handle<Object> break_point_object); 8243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void ClearBreakPoint(Handle<Object> break_point_object); 8343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void SetOneShot(); 8443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void ClearOneShot(); 851510d58cbcf57c82a10e7d390bfe21a7ae68ba43mstarzinger@chromium.org bool IsStepInLocation(Isolate* isolate); 86c03a1924dcc113678c0ebe58aa7d3c855a657719yangguo@chromium.org void PrepareStepIn(Isolate* isolate); 8743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen bool IsExit() const; 8843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen bool HasBreakPoint(); 8943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen bool IsDebugBreak(); 9043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen Object* BreakPointObjects(); 91381abbb58260f2fc7d346d0e2f83d0f132a4c14bager@chromium.org void ClearAllDebugBreak(); 9243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 9343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 94c4c927273ae2b690c4a015b4640a2a469c9a1a69ager@chromium.org inline int code_position() { 95c4c927273ae2b690c4a015b4640a2a469c9a1a69ager@chromium.org return static_cast<int>(pc() - debug_info_->code()->entry()); 96c4c927273ae2b690c4a015b4640a2a469c9a1a69ager@chromium.org } 9743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen inline int break_point() { return break_point_; } 9843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen inline int position() { return position_; } 9943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen inline int statement_position() { return statement_position_; } 10043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen inline Address pc() { return reloc_iterator_->rinfo()->pc(); } 10143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen inline Code* code() { return debug_info_->code(); } 10243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen inline RelocInfo* rinfo() { return reloc_iterator_->rinfo(); } 103236ad9617a7359a463144a6ebeb5431a70f769cfager@chromium.org inline RelocInfo::Mode rmode() const { 104236ad9617a7359a463144a6ebeb5431a70f769cfager@chromium.org return reloc_iterator_->rinfo()->rmode(); 105236ad9617a7359a463144a6ebeb5431a70f769cfager@chromium.org } 10643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen inline RelocInfo* original_rinfo() { 10743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen return reloc_iterator_original_->rinfo(); 10843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen } 109236ad9617a7359a463144a6ebeb5431a70f769cfager@chromium.org inline RelocInfo::Mode original_rmode() const { 11043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen return reloc_iterator_original_->rinfo()->rmode(); 11143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen } 11243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 113a1645e29968e70a41226edda2c49788fcea48b74ager@chromium.org bool IsDebuggerStatement(); 114a1645e29968e70a41226edda2c49788fcea48b74ager@chromium.org 11543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen protected: 11643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen bool RinfoDone() const; 11743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void RinfoNext(); 11843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 11943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen BreakLocatorType type_; 12043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen int break_point_; 12143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen int position_; 12243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen int statement_position_; 12343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen Handle<DebugInfo> debug_info_; 12443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen RelocIterator* reloc_iterator_; 12543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen RelocIterator* reloc_iterator_original_; 12643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 12743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen private: 12843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void SetDebugBreak(); 12943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void ClearDebugBreak(); 13065dad4b091d2925543c6326db635d0f7cf9e1edcager@chromium.org 13165dad4b091d2925543c6326db635d0f7cf9e1edcager@chromium.org void SetDebugBreakAtIC(); 13265dad4b091d2925543c6326db635d0f7cf9e1edcager@chromium.org void ClearDebugBreakAtIC(); 13365dad4b091d2925543c6326db635d0f7cf9e1edcager@chromium.org 134245aa859d34fd516161c48ef4c69d38d9b889284iposva@chromium.org bool IsDebugBreakAtReturn(); 135245aa859d34fd516161c48ef4c69d38d9b889284iposva@chromium.org void SetDebugBreakAtReturn(); 136245aa859d34fd516161c48ef4c69d38d9b889284iposva@chromium.org void ClearDebugBreakAtReturn(); 13743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 1382356e6fbe66ac3aa027b61cb43a3c3619b3c3a5evegorov@chromium.org bool IsDebugBreakSlot(); 1392356e6fbe66ac3aa027b61cb43a3c3619b3c3a5evegorov@chromium.org bool IsDebugBreakAtSlot(); 1402356e6fbe66ac3aa027b61cb43a3c3619b3c3a5evegorov@chromium.org void SetDebugBreakAtSlot(); 1412356e6fbe66ac3aa027b61cb43a3c3619b3c3a5evegorov@chromium.org void ClearDebugBreakAtSlot(); 1422356e6fbe66ac3aa027b61cb43a3c3619b3c3a5evegorov@chromium.org 1439a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com DISALLOW_COPY_AND_ASSIGN(BreakLocationIterator); 14443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen}; 14543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 14643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 14771affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org// Cache of all script objects in the heap. When a script is added a weak handle 14871affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org// to it is created and that weak handle is stored in the cache. The weak handle 14971affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org// callback takes care of removing the script from the cache. The key used in 15071affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org// the cache is the script id. 15171affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.orgclass ScriptCache : private HashMap { 15271affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org public: 1538d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org explicit ScriptCache(Isolate* isolate); 15471affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org virtual ~ScriptCache() { Clear(); } 15571affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org 15671affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org // Add script to the cache. 15771affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org void Add(Handle<Script> script); 15871affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org 15971affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org // Return the scripts in the cache. 16071affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org Handle<FixedArray> GetScripts(); 16171affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org 16271affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org private: 16371affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org // Calculate the hash value from the key (script id). 164f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com static uint32_t Hash(int key) { 165f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com return ComputeIntegerHash(key, v8::internal::kZeroHashSeed); 166f2038fb01417bcf7698b87a5dfaa4a861539618aerik.corry@gmail.com } 16771affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org 16871affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org // Clear the cache releasing all the weak handles. 16971affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org void Clear(); 17071affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org 17171affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org // Weak handle callback for scripts in the cache. 1724f99be9ff2091451687891a05d99cc31990de709hpayer@chromium.org static void HandleWeakScript( 1734f99be9ff2091451687891a05d99cc31990de709hpayer@chromium.org const v8::WeakCallbackData<v8::Value, void>& data); 17471affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org 175e900018c7a2a695fde788911564da37535c7e736mstarzinger@chromium.org Isolate* isolate_; 17671affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org}; 17771affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org 17871affb54842da76b24f0bb3184e9f0960523f89dkasperl@chromium.org 17943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// Linked list holding debug info objects. The debug info objects are kept as 18043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// weak handles to avoid a debug info object to keep a function alive. 18143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansenclass DebugInfoListNode { 18243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen public: 18343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen explicit DebugInfoListNode(DebugInfo* debug_info); 18443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen virtual ~DebugInfoListNode(); 18543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 18643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen DebugInfoListNode* next() { return next_; } 18743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen void set_next(DebugInfoListNode* next) { next_ = next; } 18843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen Handle<DebugInfo> debug_info() { return debug_info_; } 18943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 19043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen private: 19143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Global (weak) handle to the debug info object. 19243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen Handle<DebugInfo> debug_info_; 19343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 19443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Next pointer for linked list. 19543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen DebugInfoListNode* next_; 19643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen}; 19743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 198d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 199d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 200d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// Message delivered to the message handler callback. This is either a debugger 201d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// event or the response to a command. 202d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.orgclass MessageImpl: public v8::Debug::Message { 203d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org public: 204d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // Create a message object for a debug event. 205d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static MessageImpl NewEvent(DebugEvent event, 206d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool running, 207d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> exec_state, 208d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> event_data); 209d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 210d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // Create a message object for the response to a debug command. 211d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static MessageImpl NewResponse(DebugEvent event, 212d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool running, 213d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> exec_state, 214d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> event_data, 215d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<String> response_json, 216d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data); 217d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 218d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // Implementation of interface v8::Debug::Message. 219d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual bool IsEvent() const; 220d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual bool IsResponse() const; 221d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual DebugEvent GetEvent() const; 222d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual bool WillStartRunning() const; 223d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Handle<v8::Object> GetExecutionState() const; 224d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Handle<v8::Object> GetEventData() const; 225d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Handle<v8::String> GetJSON() const; 226d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Handle<v8::Context> GetEventContext() const; 227d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Debug::ClientData* GetClientData() const; 228d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Isolate* GetIsolate() const; 229d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 230d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org private: 231d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org MessageImpl(bool is_event, 232d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org DebugEvent event, 233d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool running, 234d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> exec_state, 235d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> event_data, 236d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<String> response_json, 237d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data); 238d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 239d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool is_event_; // Does this message represent a debug event? 240d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org DebugEvent event_; // Debug event causing the break. 241d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool running_; // Will the VM start running after this event? 242d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> exec_state_; // Current execution state. 243d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> event_data_; // Data associated with the event. 244d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<String> response_json_; // Response JSON if message holds a response. 245d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data_; // Client data passed with the request. 246d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org}; 247d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 248d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 249d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// Details of the debug event delivered to the debug event listener. 250d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.orgclass EventDetailsImpl : public v8::Debug::EventDetails { 251d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org public: 252d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org EventDetailsImpl(DebugEvent event, 253d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> exec_state, 254d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> event_data, 255d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> callback_data, 256d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data); 257d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual DebugEvent GetEvent() const; 258d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Handle<v8::Object> GetExecutionState() const; 259d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Handle<v8::Object> GetEventData() const; 260d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Handle<v8::Context> GetEventContext() const; 261d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Handle<v8::Value> GetCallbackData() const; 262d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org virtual v8::Debug::ClientData* GetClientData() const; 263d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org private: 264d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org DebugEvent event_; // Debug event causing the break. 265d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> exec_state_; // Current execution state. 266d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> event_data_; // Data associated with the event. 267d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> callback_data_; // User data passed with the callback 268d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // when it was registered. 269d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data_; // Data passed to DebugBreakForCommand. 270d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org}; 271d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 272d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 273d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// Message send by user to v8 debugger or debugger output message. 274d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// In addition to command text it may contain a pointer to some user data 275d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// which are expected to be passed along with the command reponse to message 276d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// handler. 277d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.orgclass CommandMessage { 278d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org public: 279d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static CommandMessage New(const Vector<uint16_t>& command, 280d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* data); 281d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org CommandMessage(); 282d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 283d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // Deletes user data and disposes of the text. 284d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void Dispose(); 285d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Vector<uint16_t> text() const { return text_; } 286d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data() const { return client_data_; } 287d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org private: 288d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org CommandMessage(const Vector<uint16_t>& text, 289d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* data); 290d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 291d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Vector<uint16_t> text_; 292d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data_; 293d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org}; 294d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 295d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 296d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// A Queue of CommandMessage objects. A thread-safe version is 297d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// LockingCommandMessageQueue, based on this class. 298d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.orgclass CommandMessageQueue BASE_EMBEDDED { 299d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org public: 300d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org explicit CommandMessageQueue(int size); 301d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org ~CommandMessageQueue(); 302d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool IsEmpty() const { return start_ == end_; } 303d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org CommandMessage Get(); 304d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void Put(const CommandMessage& message); 305d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void Clear() { start_ = end_ = 0; } // Queue is empty after Clear(). 306d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org private: 307d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // Doubles the size of the message queue, and copies the messages. 308d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void Expand(); 309d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 310d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org CommandMessage* messages_; 311d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org int start_; 312d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org int end_; 313d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org int size_; // The size of the queue buffer. Queue can hold size-1 messages. 314d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org}; 315d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 316d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 317d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// LockingCommandMessageQueue is a thread-safe circular buffer of CommandMessage 318d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// messages. The message data is not managed by LockingCommandMessageQueue. 319d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// Pointers to the data are passed in and out. Implemented by adding a 320d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// Mutex to CommandMessageQueue. Includes logging of all puts and gets. 321d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.orgclass LockingCommandMessageQueue BASE_EMBEDDED { 322d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org public: 323d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org LockingCommandMessageQueue(Logger* logger, int size); 324d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool IsEmpty() const; 325d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org CommandMessage Get(); 326d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void Put(const CommandMessage& message); 327d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void Clear(); 328d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org private: 329d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Logger* logger_; 330d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org CommandMessageQueue queue_; 3315de0074a922429f5e0ec2cf140c2d2989bf88140yangguo@chromium.org mutable base::Mutex mutex_; 332d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org DISALLOW_COPY_AND_ASSIGN(LockingCommandMessageQueue); 333d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org}; 334d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 335d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 33643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// This class contains the debugger support. The main purpose is to handle 33743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// setting break points in the code. 33843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// 33943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// This class controls the debug info for all functions which currently have 34043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// active breakpoints in them. This debug info is held in the heap root object 34143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// debug_info which is a FixedArray. Each entry in this list is of class 34243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen// DebugInfo. 34343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansenclass Debug { 34443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen public: 3458d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Debug event triggers. 3468d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void OnDebugBreak(Handle<Object> break_points_hit, bool auto_continue); 3479d72b8dd94263d9f500f18255d67f0c7b8c3527amachenbach@chromium.org 3489d72b8dd94263d9f500f18255d67f0c7b8c3527amachenbach@chromium.org void OnThrow(Handle<Object> exception, bool uncaught); 3499d72b8dd94263d9f500f18255d67f0c7b8c3527amachenbach@chromium.org void OnPromiseReject(Handle<JSObject> promise, Handle<Object> value); 350248dd43badb99ffce44eae2d767cda3cefaad521machenbach@chromium.org void OnCompileError(Handle<Script> script); 3518d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void OnBeforeCompile(Handle<Script> script); 352248dd43badb99ffce44eae2d767cda3cefaad521machenbach@chromium.org void OnAfterCompile(Handle<Script> script); 3535de0074a922429f5e0ec2cf140c2d2989bf88140yangguo@chromium.org void OnPromiseEvent(Handle<JSObject> data); 354d0bddc653152f270a27fe32d5d7b0f5c0fa3b00cmachenbach@chromium.org void OnAsyncTaskEvent(Handle<JSObject> data); 355d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 3568d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // API facing. 357d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void SetEventListener(Handle<Object> callback, Handle<Object> data); 358d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void SetMessageHandler(v8::Debug::MessageHandler handler); 359d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void EnqueueCommandMessage(Vector<const uint16_t> command, 360d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data = NULL); 361d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // Enqueue a debugger command to the command queue for event listeners. 362d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void EnqueueDebugCommand(v8::Debug::ClientData* client_data = NULL); 363d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org MUST_USE_RESULT MaybeHandle<Object> Call(Handle<JSFunction> fun, 364d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> data); 365d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Context> GetDebugContext(); 3668d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void HandleDebugBreak(); 3678d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void ProcessDebugMessages(bool debug_command_only); 368d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 3698d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Internal logic 370ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org bool Load(); 371e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org void Break(Arguments args, JavaScriptFrame*); 372e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org void SetAfterBreakTarget(JavaScriptFrame* frame); 3738d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 3748d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Scripts handling. 3758d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Handle<FixedArray> GetLoadedScripts(); 3768d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 3778d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Break point handling. 378a7cc028b1ce5d5b762b630529fa1956d89f76541machenbach@chromium.org bool SetBreakPoint(Handle<JSFunction> function, 379ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org Handle<Object> break_point_object, 380ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org int* source_position); 3815a11aaf63fdb7843c9b116fdb84ee35b0a980ea6yangguo@chromium.org bool SetBreakPointForScript(Handle<Script> script, 3825a11aaf63fdb7843c9b116fdb84ee35b0a980ea6yangguo@chromium.org Handle<Object> break_point_object, 38393a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org int* source_position, 38493a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org BreakPositionAlignment alignment); 385ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ClearBreakPoint(Handle<Object> break_point_object); 386ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ClearAllBreakPoints(); 3875a11aaf63fdb7843c9b116fdb84ee35b0a980ea6yangguo@chromium.org void FloodWithOneShot(Handle<JSFunction> function); 3882c067b150f65db3e076b6b5a813e7f6f2492f770rossberg@chromium.org void FloodBoundFunctionWithOneShot(Handle<JSFunction> function); 389ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void FloodHandlerWithOneShot(); 390ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ChangeBreakOnException(ExceptionBreakType type, bool enable); 391ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org bool IsBreakOnException(ExceptionBreakType type); 392a86d416fb652b1936026eee315eccd4f17ca1002machenbach@chromium.org 3938d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Stepping handling. 394639bac0c5319f96e1bbe3399fb7f7f37344928bddslomov@chromium.org void PrepareStep(StepAction step_action, 395639bac0c5319f96e1bbe3399fb7f7f37344928bddslomov@chromium.org int step_count, 396639bac0c5319f96e1bbe3399fb7f7f37344928bddslomov@chromium.org StackFrame::Id frame_id); 397ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ClearStepping(); 39888d326b0935b802e71e3a75e02f31fae8c2af96cmstarzinger@chromium.org void ClearStepOut(); 39988d326b0935b802e71e3a75e02f31fae8c2af96cmstarzinger@chromium.org bool IsStepping() { return thread_local_.step_count_ > 0; } 400ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org bool StepNextContinue(BreakLocationIterator* break_location_iterator, 401ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org JavaScriptFrame* frame); 4028d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org bool StepInActive() { return thread_local_.step_into_fp_ != 0; } 4038d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void HandleStepIn(Handle<JSFunction> function, 4048d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Handle<Object> holder, 4058d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Address fp, 4068d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org bool is_constructor); 4078d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org bool StepOutActive() { return thread_local_.step_out_fp_ != 0; } 408bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund 4098d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Purge all code objects that have no debug break slots. 41034e60787ea1e76f3ee49e859f71f036170c21f0elrn@chromium.org void PrepareForBreakPoints(); 41134e60787ea1e76f3ee49e859f71f036170c21f0elrn@chromium.org 4125a11aaf63fdb7843c9b116fdb84ee35b0a980ea6yangguo@chromium.org // Returns whether the operation succeeded. Compilation can only be triggered 4135a11aaf63fdb7843c9b116fdb84ee35b0a980ea6yangguo@chromium.org // if a valid closure is passed as the second argument, otherwise the shared 4145a11aaf63fdb7843c9b116fdb84ee35b0a980ea6yangguo@chromium.org // function needs to be compiled already. 4155a11aaf63fdb7843c9b116fdb84ee35b0a980ea6yangguo@chromium.org bool EnsureDebugInfo(Handle<SharedFunctionInfo> shared, 4165a11aaf63fdb7843c9b116fdb84ee35b0a980ea6yangguo@chromium.org Handle<JSFunction> function); 4178d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org static Handle<DebugInfo> GetDebugInfo(Handle<SharedFunctionInfo> shared); 4188d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org static bool HasDebugInfo(Handle<SharedFunctionInfo> shared); 4198d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 4208d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // This function is used in FunctionNameUsing* tests. 4218d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Object* FindSharedFunctionInfoInScript(Handle<Script> script, int position); 422bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund 423911335cff40a2630bbe1dfb77b1897be991241bfsgjesse@chromium.org // Returns true if the current stub call is patched to call the debugger. 42443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen static bool IsDebugBreak(Address addr); 425911335cff40a2630bbe1dfb77b1897be991241bfsgjesse@chromium.org // Returns true if the current return statement has been patched to be 426911335cff40a2630bbe1dfb77b1897be991241bfsgjesse@chromium.org // a debugger breakpoint. 427381abbb58260f2fc7d346d0e2f83d0f132a4c14bager@chromium.org static bool IsDebugBreakAtReturn(RelocInfo* rinfo); 42843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 42943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen static Handle<Object> GetSourceBreakLocations( 43093a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org Handle<SharedFunctionInfo> shared, 43193a47f4837f2137c8d8349250fd8e91da3108126jkummerow@chromium.org BreakPositionAlignment position_aligment); 43243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 43343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Check whether a global object is the debug global object. 434ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org bool IsDebugGlobal(GlobalObject* global); 43543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 4362cc82ae439960d1adaf4374e093730dc23945d59ager@chromium.org // Check whether this frame is just about to return. 437ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org bool IsBreakAtReturn(JavaScriptFrame* frame); 4382cc82ae439960d1adaf4374e093730dc23945d59ager@chromium.org 4398d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Support for LiveEdit 440e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org void FramesHaveBeenDropped(StackFrame::Id new_break_frame_id, 441e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org LiveEdit::FrameDropMode mode, 442e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org Object** restarter_frame_function_pointer); 44343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 444ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org // Passed to MakeWeak. 4454f99be9ff2091451687891a05d99cc31990de709hpayer@chromium.org static void HandleWeakDebugInfo( 4464f99be9ff2091451687891a05d99cc31990de709hpayer@chromium.org const v8::WeakCallbackData<v8::Value, void>& data); 44743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 44843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Threading support. 449ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org char* ArchiveDebug(char* to); 450ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org char* RestoreDebug(char* from); 45143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen static int ArchiveSpacePerThread(); 452ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void FreeThreadResources() { } 45343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 4544954674151afa960af66efb4831df06bde727333yangguo@chromium.org // Record function from which eval was called. 4554954674151afa960af66efb4831df06bde727333yangguo@chromium.org static void RecordEvalCaller(Handle<Script> script); 4564954674151afa960af66efb4831df06bde727333yangguo@chromium.org 4578d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Flags and states. 458196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org DebugScope* debugger_entry() { return thread_local_.current_debug_scope_; } 4598d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org inline Handle<Context> debug_context() { return debug_context_; } 4608d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void set_live_edit_enabled(bool v) { live_edit_enabled_ = v; } 4618d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org bool live_edit_enabled() const { 4628d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org return FLAG_enable_liveedit && live_edit_enabled_ ; 4638d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org } 4648d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 4658d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org inline bool is_active() const { return is_active_; } 4668d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org inline bool is_loaded() const { return !debug_context_.is_null(); } 4678d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org inline bool has_break_points() const { return has_break_points_; } 468196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org inline bool in_debug_scope() const { 469196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org return thread_local_.current_debug_scope_ != NULL; 4708d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org } 4718d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void set_disable_break(bool v) { break_disabled_ = v; } 4728d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 4738d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org StackFrame::Id break_frame_id() { return thread_local_.break_frame_id_; } 4748d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org int break_id() { return thread_local_.break_id_; } 4758d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 4768d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Support for embedding into generated code. 477975b940441085887fc02bebf8877d5ec97e1e06cmachenbach@chromium.org Address is_active_address() { 478975b940441085887fc02bebf8877d5ec97e1e06cmachenbach@chromium.org return reinterpret_cast<Address>(&is_active_); 479975b940441085887fc02bebf8877d5ec97e1e06cmachenbach@chromium.org } 480975b940441085887fc02bebf8877d5ec97e1e06cmachenbach@chromium.org 4818d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Address after_break_target_address() { 4828d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org return reinterpret_cast<Address>(&after_break_target_); 4838d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org } 4848d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 4858d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Address restarter_frame_function_pointer_address() { 4868d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Object*** address = &thread_local_.restarter_frame_function_pointer_; 4878d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org return reinterpret_cast<Address>(address); 4888d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org } 4898d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 4908d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Address step_in_fp_addr() { 4918d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org return reinterpret_cast<Address>(&thread_local_.step_into_fp_); 4928d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org } 4938d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 49443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen private: 495ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org explicit Debug(Isolate* isolate); 496ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org 4978d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void UpdateState(); 4988d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void Unload(); 4998d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void SetNextBreakId() { 5008d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org thread_local_.break_id_ = ++thread_local_.break_count_; 5018d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org } 5028d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 5038d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Check whether there are commands in the command queue. 5048d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org inline bool has_commands() const { return !command_queue_.IsEmpty(); } 5058d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org inline bool ignore_events() const { return is_suppressed_ || !is_active_; } 5068d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 5079d72b8dd94263d9f500f18255d67f0c7b8c3527amachenbach@chromium.org void OnException(Handle<Object> exception, bool uncaught, 5089d72b8dd94263d9f500f18255d67f0c7b8c3527amachenbach@chromium.org Handle<Object> promise); 5099d72b8dd94263d9f500f18255d67f0c7b8c3527amachenbach@chromium.org 5108d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Constructors for debug event objects. 511d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org MUST_USE_RESULT MaybeHandle<Object> MakeJSObject( 5128d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org const char* constructor_name, 513d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org int argc, 514d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> argv[]); 515d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org MUST_USE_RESULT MaybeHandle<Object> MakeExecutionState(); 516d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org MUST_USE_RESULT MaybeHandle<Object> MakeBreakEvent( 517d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> break_points_hit); 518d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org MUST_USE_RESULT MaybeHandle<Object> MakeExceptionEvent( 519d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> exception, 520d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool uncaught, 521d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> promise); 522d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org MUST_USE_RESULT MaybeHandle<Object> MakeCompileEvent( 523248dd43badb99ffce44eae2d767cda3cefaad521machenbach@chromium.org Handle<Script> script, v8::DebugEvent type); 5245de0074a922429f5e0ec2cf140c2d2989bf88140yangguo@chromium.org MUST_USE_RESULT MaybeHandle<Object> MakePromiseEvent( 5255de0074a922429f5e0ec2cf140c2d2989bf88140yangguo@chromium.org Handle<JSObject> promise_event); 526d0bddc653152f270a27fe32d5d7b0f5c0fa3b00cmachenbach@chromium.org MUST_USE_RESULT MaybeHandle<Object> MakeAsyncTaskEvent( 527d0bddc653152f270a27fe32d5d7b0f5c0fa3b00cmachenbach@chromium.org Handle<JSObject> task_event); 528d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 5298d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org // Mirror cache handling. 5308d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org void ClearMirrorCache(); 5318d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 5329d72b8dd94263d9f500f18255d67f0c7b8c3527amachenbach@chromium.org // Returns a promise if the pushed try-catch handler matches the current one. 5339d72b8dd94263d9f500f18255d67f0c7b8c3527amachenbach@chromium.org bool PromiseHasRejectHandler(Handle<JSObject> promise); 5348d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 535d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void CallEventCallback(v8::DebugEvent event, 536d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> exec_state, 537d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> event_data, 538d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::ClientData* client_data); 539d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void ProcessDebugEvent(v8::DebugEvent event, 540d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> event_data, 541d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool auto_continue); 542d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void NotifyMessageHandler(v8::DebugEvent event, 543d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> exec_state, 544d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<JSObject> event_data, 545d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool auto_continue); 546d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void InvokeMessageHandler(MessageImpl message); 547d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 548e900018c7a2a695fde788911564da37535c7e736mstarzinger@chromium.org static bool CompileDebuggerScript(Isolate* isolate, int index); 549ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ClearOneShot(); 550ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ActivateStepIn(StackFrame* frame); 551ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ClearStepIn(); 552ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ActivateStepOut(StackFrame* frame); 553ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void ClearStepNext(); 5543291210ab99f306b74430ebbc4b7d939629e699fager@chromium.org // Returns whether the compile succeeded. 555ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org void RemoveDebugInfo(Handle<DebugInfo> debug_info); 556ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org Handle<Object> CheckBreakPoints(Handle<Object> break_point); 557ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org bool CheckBreakPoint(Handle<Object> break_point_object); 55843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 559196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org inline void AssertDebugContext() { 560e3c177a423baa3c30225c4e422b6f6c76d38b951machenbach@chromium.org DCHECK(isolate_->context() == *debug_context()); 561e3c177a423baa3c30225c4e422b6f6c76d38b951machenbach@chromium.org DCHECK(in_debug_scope()); 562196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org } 563196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org 564d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org void ThreadInit(); 56543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 566d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // Global handles. 567d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Context> debug_context_; 568d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> event_listener_; 569d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org Handle<Object> event_listener_data_; 570d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 571d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org v8::Debug::MessageHandler message_handler_; 572d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 573d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static const int kQueueInitialSize = 4; 5745de0074a922429f5e0ec2cf140c2d2989bf88140yangguo@chromium.org base::Semaphore command_received_; // Signaled for each command received. 575d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org LockingCommandMessageQueue command_queue_; 576d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org LockingCommandMessageQueue event_command_queue_; 577d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 578d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool is_active_; 5798d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org bool is_suppressed_; 580d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool live_edit_enabled_; 581d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool has_break_points_; 5828d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org bool break_disabled_; 583d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool break_on_exception_; 584d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org bool break_on_uncaught_exception_; 585d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 586d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org ScriptCache* script_cache_; // Cache of all scripts in the heap. 587d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org DebugInfoListNode* debug_info_list_; // List of active debug info objects. 588d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 589e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org // Storage location for jump when exiting debug break calls. 590e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org // Note that this address is not GC safe. It should be computed immediately 591e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org // before returning to the DebugBreakCallHelper. 592e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org Address after_break_target_; 593e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org 5947be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org // Per-thread data. 59543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen class ThreadLocal { 59643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen public: 597e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org // Top debugger entry. 598196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org DebugScope* current_debug_scope_; 599e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org 6007be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org // Counter for generating next break id. 6017be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org int break_count_; 6027be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org 6037be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org // Current break id. 6047be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org int break_id_; 6057be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org 6067be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org // Frame id for the frame of the current break. 6077be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org StackFrame::Id break_frame_id_; 6087be3c996bea370e151c9fe4ecf7f779cdc5f87adkasperl@chromium.org 60943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Step action for last step performed. 61043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen StepAction last_step_action_; 61143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 61243d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Source statement position from last step next action. 61343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen int last_statement_position_; 61443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 61543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Number of steps left to perform before debug event. 61643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen int step_count_; 61743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 61843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Frame pointer from last step next action. 61943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen Address last_fp_; 62043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 62134e60787ea1e76f3ee49e859f71f036170c21f0elrn@chromium.org // Number of queued steps left to perform before debug event. 62234e60787ea1e76f3ee49e859f71f036170c21f0elrn@chromium.org int queued_step_count_; 62334e60787ea1e76f3ee49e859f71f036170c21f0elrn@chromium.org 62443d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Frame pointer for frame from which step in was performed. 62543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen Address step_into_fp_; 62643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 627a1645e29968e70a41226edda2c49788fcea48b74ager@chromium.org // Frame pointer for the frame where debugger should be called when current 628a1645e29968e70a41226edda2c49788fcea48b74ager@chromium.org // step out action is completed. 629a1645e29968e70a41226edda2c49788fcea48b74ager@chromium.org Address step_out_fp_; 630a1645e29968e70a41226edda2c49788fcea48b74ager@chromium.org 63169ea3965ef6e0d3f020a402cf7e6b96b9cb651aekmillikin@chromium.org // Stores the way how LiveEdit has patched the stack. It is used when 63269ea3965ef6e0d3f020a402cf7e6b96b9cb651aekmillikin@chromium.org // debugger returns control back to user script. 633e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org LiveEdit::FrameDropMode frame_drop_mode_; 634e90029b96bc4097e0f14d33cc086030d7ad5007awhesse@chromium.org 635e90029b96bc4097e0f14d33cc086030d7ad5007awhesse@chromium.org // When restarter frame is on stack, stores the address 636e90029b96bc4097e0f14d33cc086030d7ad5007awhesse@chromium.org // of the pointer to function being restarted. Otherwise (most of the time) 637e90029b96bc4097e0f14d33cc086030d7ad5007awhesse@chromium.org // stores NULL. This pointer is used with 'step in' implementation. 638e90029b96bc4097e0f14d33cc086030d7ad5007awhesse@chromium.org Object** restarter_frame_function_pointer_; 63943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen }; 64043d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 64143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen // Storage location for registers when handling debug break calls 642ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org ThreadLocal thread_local_; 64343d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 644ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org Isolate* isolate_; 645ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org 646ea88ce93dcb41a9200ec8747ae7642a5db1f4ce7sgjesse@chromium.org friend class Isolate; 647196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org friend class DebugScope; 6488d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org friend class DisableBreak; 6498ddb15e9094939a28890ee8bbc7f7fa246ecea49machenbach@chromium.org friend class LiveEdit; 6508d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org friend class SuppressDebug; 6518d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 6528d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org friend Handle<FixedArray> GetDebuggedFunctions(); // In test-debug.cc 6538d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org friend void CheckDebuggerUnloaded(bool check_functions); // In test-debug.cc 6542356e6fbe66ac3aa027b61cb43a3c3619b3c3a5evegorov@chromium.org 6559a4089a092cad9ff23b6416b92cd5d818dc101d1mads.s.ager@gmail.com DISALLOW_COPY_AND_ASSIGN(Debug); 65643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen}; 65743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 65843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 659a77ec9c2cf67e5b9c707fe42f33574526fed189amachenbach@chromium.orgDECLARE_RUNTIME_FUNCTION(Debug_Break); 660c36ce6e8979bbbd43539f0a0effc87ea20dd65cckmillikin@chromium.org 661c36ce6e8979bbbd43539f0a0effc87ea20dd65cckmillikin@chromium.org 662196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org// This scope is used to load and enter the debug context and create a new 663196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org// break state. Leaving the scope will restore the previous state. 664196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org// On failure to load, FailedToEnter returns true. 665196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.orgclass DebugScope BASE_EMBEDDED { 66643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen public: 667196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org explicit DebugScope(Debug* debug); 668196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org ~DebugScope(); 66943d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 670196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org // Check whether loading was successful. 671196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org inline bool failed() { return failed_; } 67241044eb0969b0d7d5c041a077519a36efa6aff27kasperl@chromium.org 6739085a016223a6b72bf580d5781c93ec7b9e54422ager@chromium.org // Get the active context from before entering the debugger. 6749085a016223a6b72bf580d5781c93ec7b9e54422ager@chromium.org inline Handle<Context> GetContext() { return save_.context(); } 6759085a016223a6b72bf580d5781c93ec7b9e54422ager@chromium.org 67643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen private: 677196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org Isolate* isolate() { return debug_->isolate_; } 678196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org 679196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org Debug* debug_; 680196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org DebugScope* prev_; // Previous scope if entered recursively. 68143d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen StackFrame::Id break_frame_id_; // Previous break frame id. 682196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org int break_id_; // Previous break id. 683196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org bool failed_; // Did the debug context fail to load? 684196eb601290dc49c3754da728dc58700dff2de1bmachenbach@chromium.org SaveContext save_; // Saves previous context. 685f78524cb19cf078611235da0d6e361207f7eacdcmachenbach@chromium.org PostponeInterruptsScope no_termination_exceptons_; 68643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen}; 68743d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 68843d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 689bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund// Stack allocated class for disabling break. 690bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lundclass DisableBreak BASE_EMBEDDED { 691bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund public: 6928d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org explicit DisableBreak(Debug* debug, bool disable_break) 6938d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org : debug_(debug), old_state_(debug->break_disabled_) { 6948d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org debug_->break_disabled_ = disable_break; 695bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund } 6968d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org ~DisableBreak() { debug_->break_disabled_ = old_state_; } 6978d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 6988d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org private: 6998d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Debug* debug_; 7008d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org bool old_state_; 7018d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org DISALLOW_COPY_AND_ASSIGN(DisableBreak); 7028d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org}; 7038d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 7048d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org 7058d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.orgclass SuppressDebug BASE_EMBEDDED { 7068d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org public: 7078d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org explicit SuppressDebug(Debug* debug) 7088d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org : debug_(debug), old_state_(debug->is_suppressed_) { 7098d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org debug_->is_suppressed_ = true; 710bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund } 7118d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org ~SuppressDebug() { debug_->is_suppressed_ = old_state_; } 712bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund 713bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund private: 7148d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org Debug* debug_; 7158d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org bool old_state_; 7168d8413cae4e7eb777aaed22e2901c19f8d5d1297machenbach@chromium.org DISALLOW_COPY_AND_ASSIGN(SuppressDebug); 717bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund}; 718bd3ec4e5037180e591d597bc7a8c92200798c3dbkasper.lund 719d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 720d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org// Code generator routines. 721d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.orgclass DebugCodegen : public AllStatic { 722d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org public: 723d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateSlot(MacroAssembler* masm); 724d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateCallICStubDebugBreak(MacroAssembler* masm); 725d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateLoadICDebugBreak(MacroAssembler* masm); 726d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateStoreICDebugBreak(MacroAssembler* masm); 727d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateKeyedLoadICDebugBreak(MacroAssembler* masm); 728d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateKeyedStoreICDebugBreak(MacroAssembler* masm); 729d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateCompareNilICDebugBreak(MacroAssembler* masm); 730d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateReturnDebugBreak(MacroAssembler* masm); 731d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateCallFunctionStubDebugBreak(MacroAssembler* masm); 732d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateCallConstructStubDebugBreak(MacroAssembler* masm); 733d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateCallConstructStubRecordDebugBreak(MacroAssembler* masm); 734d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateSlotDebugBreak(MacroAssembler* masm); 735d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GeneratePlainReturnLiveEdit(MacroAssembler* masm); 736d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 737d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // FrameDropper is a code replacement for a JavaScript frame with possibly 738d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // several frames above. 739d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // There is no calling conventions here, because it never actually gets 740d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org // called, it only gets returned to. 741d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org static void GenerateFrameDropperLiveEdit(MacroAssembler* masm); 742d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org}; 743d06b9264b1c886fc80a100e9915cf8ae07fdb4e5machenbach@chromium.org 744e31b63e9608909e17e35a3330b0075140af2fe91machenbach@chromium.org 74543d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen} } // namespace v8::internal 74643d26ecc3563a46f62a0224030667c8f8f3f6cebchristian.plesner.hansen 7475ec4892aef9cca42940d7d92302abf674365f6b7ager@chromium.org#endif // V8_DEBUG_H_ 748