thread.h revision 668512afd0d9b3772a0abc589208b729ee16bc61
10e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro// Copyright 2011 Google Inc. All Rights Reserved. 20e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 30e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#ifndef ART_SRC_THREAD_H_ 40e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#define ART_SRC_THREAD_H_ 50e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 6b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro#include <pthread.h> 7a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 8a09576416788b916095739e43a16917e7948f3a4Elliott Hughes#include <iosfwd> 9b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers#include <list> 10b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 111f87008b165d26541d832ff805250afdc89c253dBrian Carlstrom#include "dex_file.h" 12578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "globals.h" 1369f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes#include "jni_internal.h" 14578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "logging.h" 15578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "macros.h" 16b765be0d656c3073402693aeaf64e95a0e49f218Brian Carlstrom#include "mem_map.h" 17578bbdc684db8ed68e9fedbc678669d27fa68b6eBrian Carlstrom#include "offsets.h" 18b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 190e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapironamespace art { 200e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 2169f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughesclass Array; 2237f7a40f6789bb287f287a9af00777af9d6428eeElliott Hughesclass Class; 231f87008b165d26541d832ff805250afdc89c253dBrian Carlstromclass ClassLinker; 24edcc09c737b00462881f147602656739d029571eElliott Hughesclass ClassLoader; 25a40f9bc48afe3a9d38be2fa298fece13ed82ba28Brian Carlstromclass Method; 260e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiroclass Object; 27b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiroclass Runtime; 280e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiroclass Thread; 29b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiroclass ThreadList; 30e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughesclass Throwable; 3155df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liaoclass StackTraceElement; 3255df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liaotemplate<class T> class ObjectArray; 334417536522fd2a9d8215d8672331984769c9520bShih-wei Liaotemplate<class T> class PrimitiveArray; 344417536522fd2a9d8215d8672331984769c9520bShih-wei Liaotypedef PrimitiveArray<int32_t> IntArray; 350e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 360e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiroclass Mutex { 370e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro public: 380e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro virtual ~Mutex() {} 390e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 40b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void Lock(); 410e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 42b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro bool TryLock(); 430e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 44b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void Unlock(); 450e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 460e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro const char* GetName() { return name_; } 470e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 480e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro Thread* GetOwner() { return owner_; } 490e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 50b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro static Mutex* Create(const char* name); 51b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 5279082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes // TODO: only needed because we lack a condition variable abstraction. 5379082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes pthread_mutex_t* GetImpl() { return &lock_impl_; } 540e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 550e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro private: 5618c0753c1659629021b4becdaa3f6ea81aecce35Elliott Hughes explicit Mutex(const char* name) : name_(name), owner_(NULL) {} 5718c0753c1659629021b4becdaa3f6ea81aecce35Elliott Hughes 5879082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes void SetOwner(Thread* thread) { owner_ = thread; } 5979082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 600e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro const char* name_; 610e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 620e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro Thread* owner_; 630e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 64b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro pthread_mutex_t lock_impl_; 65b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 660e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro DISALLOW_COPY_AND_ASSIGN(Mutex); 670e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro}; 680e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 690e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiroclass MutexLock { 700e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro public: 710e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro explicit MutexLock(Mutex *mu) : mu_(mu) { 720e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro mu_->Lock(); 730e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 740e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro ~MutexLock() { mu_->Unlock(); } 750e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro private: 760e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro Mutex* const mu_; 770e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro DISALLOW_COPY_AND_ASSIGN(MutexLock); 780e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro}; 790e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 80408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers// Stack allocated indirect reference table, allocated within the bridge frame 81408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers// between managed and native code. 82408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogersclass StackIndirectReferenceTable { 83b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers public: 84408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Number of references contained within this SIRT 85b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers size_t NumberOfReferences() { 86b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return number_of_references_; 87b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 88b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 89408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Link to previous SIRT or NULL 90408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers StackIndirectReferenceTable* Link() { 91b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return link_; 92b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 93b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 94408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers Object** References() { 95408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return references_; 96a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers } 97a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 98408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Offset of length within SIRT, used by generated code 99b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers static size_t NumberOfReferencesOffset() { 100408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return OFFSETOF_MEMBER(StackIndirectReferenceTable, number_of_references_); 101b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 102b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 103408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Offset of link within SIRT, used by generated code 104b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers static size_t LinkOffset() { 105408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return OFFSETOF_MEMBER(StackIndirectReferenceTable, link_); 106b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 107b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 108b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers private: 109408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers StackIndirectReferenceTable() {} 110b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 111b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers size_t number_of_references_; 112408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers StackIndirectReferenceTable* link_; 113b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 114a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers // Fake array, really allocated and filled in by jni_compiler. 115408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers Object* references_[0]; 116a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 117408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers DISALLOW_COPY_AND_ASSIGN(StackIndirectReferenceTable); 118b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers}; 119b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 1206de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogersstruct NativeToManagedRecord { 1216de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers NativeToManagedRecord* link; 1226de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers void* last_top_of_managed_stack; 1236de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers}; 1246de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers 1251a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao// Iterator over managed frames up to the first native-to-managed transition 1261a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liaoclass Frame { 1279b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 1281a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao Frame() : sp_(NULL) {} 1291a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1300cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers Method* GetMethod() const { 131a09576416788b916095739e43a16917e7948f3a4Elliott Hughes return (sp_ != NULL) ? *sp_ : NULL; 1321a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1331a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1341a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao bool HasNext() const { 1351a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao return NextMethod() != NULL; 1361a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1371a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1381a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao void Next(); 1391a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 14055df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao uintptr_t GetPC() const; 1411a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1420cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers Method** GetSP() const { 1431a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao return sp_; 1441a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1451a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1461a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao // TODO: this is here for testing, remove when we have exception unit tests 1471a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao // that use the real stack 1480cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers void SetSP(Method** sp) { 1491a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao sp_ = sp; 1501a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 1511a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1521a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao private: 1530cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers Method* NextMethod() const; 1541a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1551a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao friend class Thread; 1561a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1570cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers Method** sp_; 1581a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao}; 1591a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 1600e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiroclass Thread { 1610e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro public: 162b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro enum State { 163b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro kUnknown = -1, 164b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro kNew, 165b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro kRunnable, 166b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro kBlocked, 167b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro kWaiting, 168b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro kTimedWaiting, 169b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers kNative, 170b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro kTerminated, 171b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro }; 172b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 173c143c55718342519db5398e41dda31422cf16c79buzbee 17461e019d291583029c01b61b93bea750f2b663c37Carl Shapiro static const size_t kDefaultStackSize = 64 * KB; 17561e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 176c143c55718342519db5398e41dda31422cf16c79buzbee // Runtime support function pointers 177c143c55718342519db5398e41dda31422cf16c79buzbee void* (*pMemcpy)(void*, const void*, size_t); 1785433072f589b61413e042eddf76e8190a048f71dbuzbee uint64_t (*pShlLong)(uint64_t, uint32_t); 1795433072f589b61413e042eddf76e8190a048f71dbuzbee uint64_t (*pShrLong)(uint64_t, uint32_t); 1805433072f589b61413e042eddf76e8190a048f71dbuzbee uint64_t (*pUshrLong)(uint64_t, uint32_t); 181c143c55718342519db5398e41dda31422cf16c79buzbee float (*pI2f)(int); 182c143c55718342519db5398e41dda31422cf16c79buzbee int (*pF2iz)(float); 183c143c55718342519db5398e41dda31422cf16c79buzbee float (*pD2f)(double); 184c143c55718342519db5398e41dda31422cf16c79buzbee double (*pF2d)(float); 185c143c55718342519db5398e41dda31422cf16c79buzbee double (*pI2d)(int); 186c143c55718342519db5398e41dda31422cf16c79buzbee int (*pD2iz)(double); 187c143c55718342519db5398e41dda31422cf16c79buzbee float (*pL2f)(long); 188c143c55718342519db5398e41dda31422cf16c79buzbee double (*pL2d)(long); 1891b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee long long (*pF2l)(float); 1901b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee long long (*pD2l)(double); 191c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFadd)(float, float); 192c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFsub)(float, float); 193c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFdiv)(float, float); 194c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFmul)(float, float); 195c143c55718342519db5398e41dda31422cf16c79buzbee float (*pFmodf)(float, float); 196c143c55718342519db5398e41dda31422cf16c79buzbee double (*pDadd)(double, double); 197c143c55718342519db5398e41dda31422cf16c79buzbee double (*pDsub)(double, double); 198c143c55718342519db5398e41dda31422cf16c79buzbee double (*pDdiv)(double, double); 199c143c55718342519db5398e41dda31422cf16c79buzbee double (*pDmul)(double, double); 200c143c55718342519db5398e41dda31422cf16c79buzbee double (*pFmod)(double, double); 201c143c55718342519db5398e41dda31422cf16c79buzbee int (*pIdivmod)(int, int); 202c143c55718342519db5398e41dda31422cf16c79buzbee int (*pIdiv)(int, int); 203439c4fa0db980fb19e4a585723a64a3461e4c278buzbee long long (*pLmul)(long long, long long); 204c143c55718342519db5398e41dda31422cf16c79buzbee long long (*pLdivmod)(long long, long long); 205dfd3d70e58c37b5d56eded3a4469082d8bb26ee0buzbee Array* (*pAllocFromCode)(uint32_t, Method*, int32_t); 2061f87008b165d26541d832ff805250afdc89c253dBrian Carlstrom Object* (*pAllocObjectFromCode)(uint32_t, Method*); 207e1931749814dbb80c5a756f9842e9c261bb2e8f6buzbee uint32_t (*pGet32Static)(uint32_t, const Method*); 208e1931749814dbb80c5a756f9842e9c261bb2e8f6buzbee void (*pSet32Static)(uint32_t, const Method*, uint32_t); 209e1931749814dbb80c5a756f9842e9c261bb2e8f6buzbee uint64_t (*pGet64Static)(uint32_t, const Method*); 210e1931749814dbb80c5a756f9842e9c261bb2e8f6buzbee void (*pSet64Static)(uint32_t, const Method*, uint64_t); 211e1931749814dbb80c5a756f9842e9c261bb2e8f6buzbee Object* (*pGetObjStatic)(uint32_t, const Method*); 212e1931749814dbb80c5a756f9842e9c261bb2e8f6buzbee void (*pSetObjStatic)(uint32_t, const Method*, Object*); 2131b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee bool (*pCanPutArrayElementFromCode)(const Class*, const Class*); 2141b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee int (*pInstanceofNonTrivialFromCode) (const Class*, const Class*); 2151b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee Method* (*pFindInterfaceMethodInCache)(Class*, uint32_t, const Method*, struct DvmDex*); 2161b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee bool (*pUnlockObjectFromCode)(Thread*, Object*); 2171b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee void (*pLockObjectFromCode)(Thread*, Object*); 2181b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee void (*pThrowException)(Thread*, Throwable*); 2191b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee void (*pHandleFillArrayDataFromCode)(Array*, const uint16_t*); 2201b4c85959b3d9a4a33bc2160c46c1bbde67350c7buzbee Class* (*pInitializeTypeFromCode)(uint32_t, Method*); 221561227c80077bbb4147f778043f1a836af6b9248buzbee void (*pResolveMethodFromCode)(Method*, uint32_t); 222c143c55718342519db5398e41dda31422cf16c79buzbee 2239b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao class StackVisitor { 2249b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao public: 2250cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers virtual ~StackVisitor() {} 2269b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao virtual bool VisitFrame(const Frame& frame) = 0; 2279b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao }; 2289b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao 22961e019d291583029c01b61b93bea750f2b663c37Carl Shapiro // Creates a new thread. 230b765be0d656c3073402693aeaf64e95a0e49f218Brian Carlstrom static Thread* Create(const Runtime* runtime); 23161e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 23261e019d291583029c01b61b93bea750f2b663c37Carl Shapiro // Creates a new thread from the calling thread. 233515a5bc89282d6f910cae4d5852bb77124a47825Elliott Hughes static Thread* Attach(const Runtime* runtime); 234b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 235b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro static Thread* Current() { 236d0e7e777c412071a911dd2c008b20b7d879fd392Carl Shapiro void* thread = pthread_getspecific(Thread::pthread_key_self_); 237d0e7e777c412071a911dd2c008b20b7d879fd392Carl Shapiro return reinterpret_cast<Thread*>(thread); 2380e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2390e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 240a09576416788b916095739e43a16917e7948f3a4Elliott Hughes void Dump(std::ostream& os) const; 241a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 2420cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers State GetState() const { 2430cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers return state_; 2440cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 2450cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 2460cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers State SetState(State new_state) { 2470cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers State old_state = state_; 2480cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers state_ = new_state; 2490cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers return old_state; 2500cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 2510cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 2520cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers bool CanAccessDirectReferences() const { 2530cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers return state_ == kRunnable; 2540cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 2550cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 256b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro uint32_t GetId() const { 257b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro return id_; 258b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 259b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 260d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pid_t GetTid() const { 261d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes return tid_; 262d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes } 263e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes 264e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes pthread_t GetImpl() const { 265e27955ca3ca960928d4dbd6cb79711fce06950b3Elliott Hughes return handle_; 2660e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2670e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 2680cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers // Returns the Method* for the current method. 2690cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers // This is used by the JNI implementation for logging and diagnostic purposes. 2700cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers const Method* GetCurrentMethod() const { 2710cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers return top_of_managed_stack_.GetMethod(); 2720cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 2730cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 2740e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro bool IsExceptionPending() const { 275b20a554613609dc372073d2ebd9fbc3925a429f5Elliott Hughes return exception_ != NULL; 2760e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2770e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 278e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes Throwable* GetException() const { 2790cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers DCHECK(CanAccessDirectReferences()); 2800e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro return exception_; 2810e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 2820e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 2830cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers void SetException(Throwable* new_exception) { 2840cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers DCHECK(CanAccessDirectReferences()); 2850cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers CHECK(new_exception != NULL); 2860cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers // TODO: CHECK(exception_ == NULL); 2870cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers exception_ = new_exception; // TODO 2880cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers } 2890cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers 2900cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers void ClearException() { 2910cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers exception_ = NULL; 292a09576416788b916095739e43a16917e7948f3a4Elliott Hughes } 293a09576416788b916095739e43a16917e7948f3a4Elliott Hughes 2941a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao Frame GetTopOfStack() const { 2951a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao return top_of_managed_stack_; 2961a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao } 2971a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 2981a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao // TODO: this is here for testing, remove when we have exception unit tests 2991a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao // that use the real stack 3001a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao void SetTopOfStack(void* stack) { 3010cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers top_of_managed_stack_.SetSP(reinterpret_cast<Method**>(stack)); 3020e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro } 3030e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 304e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes void ThrowNewException(const char* exception_class_descriptor, const char* fmt, ...) 305a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes __attribute__ ((format(printf, 3, 4))); 306a5b897eae4b6f9f9608faa9eada7ddf42bf1bfd2Elliott Hughes 30779082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes // This exception is special, because we need to pre-allocate an instance. 30879082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes void ThrowOutOfMemoryError(); 30979082e367845bbd68ec44ef2ddd1be8ef0e1550fElliott Hughes 3101a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao Frame FindExceptionHandler(void* throw_pc, void** handler_pc); 3111a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 3121a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao void* FindExceptionHandlerInMethod(const Method* method, 3131a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao void* throw_pc, 3141a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao const DexFile& dex_file, 3151a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao ClassLinker* class_linker); 316668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao static ThreadOffset SelfOffset() { 317668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao return ThreadOffset(OFFSETOF_MEMBER(Thread, self_)); 318668512afd0d9b3772a0abc589208b729ee16bc61Shih-wei Liao } 3191a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao 32045a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // Offset of exception within Thread, used by generated code 32145a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers static ThreadOffset ExceptionOffset() { 32245a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, exception_)); 32345a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers } 32445a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 325c143c55718342519db5398e41dda31422cf16c79buzbee // Offset of id within Thread, used by generated code 326c143c55718342519db5398e41dda31422cf16c79buzbee static ThreadOffset IdOffset() { 327c143c55718342519db5398e41dda31422cf16c79buzbee return ThreadOffset(OFFSETOF_MEMBER(Thread, id_)); 328c143c55718342519db5398e41dda31422cf16c79buzbee } 329c143c55718342519db5398e41dda31422cf16c79buzbee 330c143c55718342519db5398e41dda31422cf16c79buzbee // Offset of card_table within Thread, used by generated code 331c143c55718342519db5398e41dda31422cf16c79buzbee static ThreadOffset CardTableOffset() { 332c143c55718342519db5398e41dda31422cf16c79buzbee return ThreadOffset(OFFSETOF_MEMBER(Thread, card_table_)); 333c143c55718342519db5398e41dda31422cf16c79buzbee } 334c143c55718342519db5398e41dda31422cf16c79buzbee 335b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void SetName(const char* name); 336b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 337b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void Suspend(); 338b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 339b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro bool IsSuspended(); 340b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 341b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void Resume(); 342b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 343c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes static bool Startup(); 344c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes static void Shutdown(); 345b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 34645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers static ThreadOffset SuspendCountOffset() { 34745a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, suspend_count_)); 34845a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers } 34945a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 350b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // Offset of state within Thread, used by generated code 351b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers static ThreadOffset StateOffset() { 352b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, state_)); 353b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 354b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 355b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // JNI methods 35669f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes JNIEnvExt* GetJniEnv() const { 357b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return jni_env_; 358b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 359b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 360b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // Offset of JNI environment within Thread, used by generated code 361b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers static ThreadOffset JniEnvOffset() { 362b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, jni_env_)); 363b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 364b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 36545a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // Offset of top of managed stack address, used by generated code 36645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers static ThreadOffset TopOfManagedStackOffset() { 3671a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao return ThreadOffset(OFFSETOF_MEMBER(Thread, top_of_managed_stack_) + 3681a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao OFFSETOF_MEMBER(Frame, sp_)); 36945a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers } 37045a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 371408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Offset of top stack indirect reference table within Thread, used by 372408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // generated code 373408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers static ThreadOffset TopSirtOffset() { 374408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, top_sirt_)); 375b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers } 376b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 377408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Number of references allocated in SIRTs on this thread 378408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers size_t NumSirtReferences(); 379a8cd9f4a849835af7856f9c9782ea59e11ddef85Ian Rogers 380408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Is the given obj in this thread's stack indirect reference table? 381408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers bool SirtContains(jobject obj); 382408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers 383408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Convert a jobject into a Object* 384408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers Object* DecodeJObject(jobject obj); 385b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 38645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // Offset of exception_entry_point_ within Thread, used by generated code 38745a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers static ThreadOffset ExceptionEntryPointOffset() { 38845a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, exception_entry_point_)); 38945a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers } 39045a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 39145a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers void RegisterExceptionEntryPoint(void (*handler)(Method**)) { 39245a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers exception_entry_point_ = handler; 39345a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers } 39445a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 39545a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // Offset of suspend_count_entry_point_ within Thread, used by generated code 39645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers static ThreadOffset SuspendCountEntryPointOffset() { 39745a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers return ThreadOffset(OFFSETOF_MEMBER(Thread, suspend_count_entry_point_)); 39845a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers } 39945a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 40045a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers void RegisterSuspendCountEntryPoint(void (*handler)(Method**)) { 40145a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers suspend_count_entry_point_ = handler; 40245a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers } 40345a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 40445a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // Increasing the suspend count, will cause the thread to run to safepoint 40545a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers void IncrementSuspendCount() { suspend_count_++; } 40645a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers void DecrementSuspendCount() { suspend_count_--; } 40745a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 4086de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers // Linked list recording transitions from native to managed code 4096de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers void PushNativeToManagedRecord(NativeToManagedRecord* record) { 4101a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao record->last_top_of_managed_stack = reinterpret_cast<void*>(top_of_managed_stack_.GetSP()); 4116de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers record->link = native_to_managed_record_; 4126de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers native_to_managed_record_ = record; 4131a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao top_of_managed_stack_.SetSP(NULL); 4146de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers } 4156de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers void PopNativeToManagedRecord(const NativeToManagedRecord& record) { 4166de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers native_to_managed_record_ = record.link; 4170cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers top_of_managed_stack_.SetSP(reinterpret_cast<Method**>(record.last_top_of_managed_stack)); 4186de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers } 4196de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers 420bffb15585b8fd43d3ca534ddbb85e7f591595951Brian Carlstrom const ClassLoader* GetClassLoaderOverride() { 4210cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers // TODO: need to place the class_loader_override_ in a handle 4220cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers // DCHECK(CanAccessDirectReferences()); 423c143c55718342519db5398e41dda31422cf16c79buzbee return class_loader_override_; 424c143c55718342519db5398e41dda31422cf16c79buzbee } 425c143c55718342519db5398e41dda31422cf16c79buzbee 426bffb15585b8fd43d3ca534ddbb85e7f591595951Brian Carlstrom void SetClassLoaderOverride(const ClassLoader* class_loader_override) { 427c143c55718342519db5398e41dda31422cf16c79buzbee class_loader_override_ = class_loader_override; 428c143c55718342519db5398e41dda31422cf16c79buzbee } 429c143c55718342519db5398e41dda31422cf16c79buzbee 4304417536522fd2a9d8215d8672331984769c9520bShih-wei Liao // Allocate stack trace 4319b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao ObjectArray<StackTraceElement>* AllocStackTrace(); 43255df06be4369f5d8ab5eb61a5d22809255171036Shih-wei Liao 433410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes void VisitRoots(Heap::RootVisitor* visitor, void* arg) const; 434410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 4350e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro private: 43640ef99eb9dd91c2fa549f40973964529c927bb3cElliott Hughes Thread() 437330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes : id_(1234), 4381a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao top_of_managed_stack_(), 4396de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers native_to_managed_record_(NULL), 440408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers top_sirt_(NULL), 441330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes jni_env_(NULL), 442330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughes exception_(NULL), 443c143c55718342519db5398e41dda31422cf16c79buzbee suspend_count_(0), 444c143c55718342519db5398e41dda31422cf16c79buzbee class_loader_override_(NULL) { 4453ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee InitFunctionPointers(); 446df20fe0c097073f75f22d16e72fd3636a31d3ca1Ian Rogers } 44769759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro 448c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes ~Thread(); 4490cfe1fb7060576d047f7f894fc0d8b87de84fcabIan Rogers friend class Runtime; // For ~Thread. 4500e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 451d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes void DumpState(std::ostream& os) const; 452d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes void DumpStack(std::ostream& os) const; 453d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 454b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers void InitCpu(); 4553ea4ec5629613013ad9b0d7a69abdb94491ac46fbuzbee void InitFunctionPointers(); 456b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 4579b576b4ed1dbe035952f3106d8f4b6993125ed6fShih-wei Liao void WalkStack(StackVisitor* visitor); 4584417536522fd2a9d8215d8672331984769c9520bShih-wei Liao 45969759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // Managed thread id. 46069759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro uint32_t id_; 461b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 462d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // System thread id. 463d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pid_t tid_; 464d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 465d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes // Native thread handle. 466d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes pthread_t handle_; 467d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 468c143c55718342519db5398e41dda31422cf16c79buzbee // FIXME: placeholder for the gc cardTable 469c143c55718342519db5398e41dda31422cf16c79buzbee uint32_t card_table_; 470c143c55718342519db5398e41dda31422cf16c79buzbee 47145a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // Top of the managed stack, written out prior to the state transition from 47245a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // kRunnable to kNative. Uses include to give the starting point for scanning 47345a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // a managed stack when a thread is in native code. 4741a18c8c1c0e4ea1ff06177e93c7ff703376dcee2Shih-wei Liao Frame top_of_managed_stack_; 47545a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 4766de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers // A linked list (of stack allocated records) recording transitions from 4776de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers // native to managed code. 4786de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers NativeToManagedRecord* native_to_managed_record_; 4796de0860c491d390b7a53be436519ef2d9234c4c9Ian Rogers 480408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers // Top of linked list of stack indirect reference tables or NULL for none 481408f79aeb676251ba35667a64e86c20638d7cb0bIan Rogers StackIndirectReferenceTable* top_sirt_; 482b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 483b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers // Every thread may have an associated JNI environment 48469f5bc6759f256a146eefd8a7141d39fcc3b0421Elliott Hughes JNIEnvExt* jni_env_; 485b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogers 486b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro State state_; 487b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 48869759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // Initialized to "this". On certain architectures (such as x86) reading 48969759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // off of Thread::Current is easy but getting the address of Thread::Current 49069759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // is hard. This field can be read off of Thread::Current to give the address. 49169759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro Thread* self_; 49269759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro 49369759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro Runtime* runtime_; 49469759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro 49569759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // The pending exception or NULL. 496e5b0dc83537bf915c6abe4efeae6e501daf75a27Elliott Hughes Throwable* exception_; 4970e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 49845a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // A non-zero value is used to tell the current thread to enter a safe point 49945a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // at the next poll. 50045a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers int suspend_count_; 50145a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 502edcc09c737b00462881f147602656739d029571eElliott Hughes // Needed to get the right ClassLoader in JNI_OnLoad, but also 503edcc09c737b00462881f147602656739d029571eElliott Hughes // useful for testing. 504bffb15585b8fd43d3ca534ddbb85e7f591595951Brian Carlstrom const ClassLoader* class_loader_override_; 505c143c55718342519db5398e41dda31422cf16c79buzbee 50669759eaa6fd4386f1e6d8748052ad221087b3476Carl Shapiro // TLS key used to retrieve the VM thread object. 507b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro static pthread_key_t pthread_key_self_; 508b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 50945a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // Entry point called when exception_ is set 51045a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers void (*exception_entry_point_)(Method** frame); 51145a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 51245a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers // Entry point called when suspend_count_ is non-zero 51345a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers void (*suspend_count_entry_point_)(Method** frame); 51445a76cb99104a222d6a9bd768a084893dcb7cf30Ian Rogers 5150e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro DISALLOW_COPY_AND_ASSIGN(Thread); 5160e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro}; 517330304de14dc7118b45b8e7b5bd11a172fa61701Elliott Hughesstd::ostream& operator<<(std::ostream& os, const Thread& thread); 518b033c75ebda80ac75f936366fe78d1edf5cec937Ian Rogersstd::ostream& operator<<(std::ostream& os, const Thread::State& state); 5190e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 520b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiroclass ThreadList { 521b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro public: 52261e019d291583029c01b61b93bea750f2b663c37Carl Shapiro static const int kMaxId = 0xFFFF; 52361e019d291583029c01b61b93bea750f2b663c37Carl Shapiro static const int kInvalidId = 0; 52461e019d291583029c01b61b93bea750f2b663c37Carl Shapiro static const int kMainId = 1; 52561e019d291583029c01b61b93bea750f2b663c37Carl Shapiro 52661e019d291583029c01b61b93bea750f2b663c37Carl Shapiro static ThreadList* Create(); 527b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 52861e019d291583029c01b61b93bea750f2b663c37Carl Shapiro ~ThreadList(); 529b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 530d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes void Dump(std::ostream& os); 531d92bec457dc6c506c80e9da6b8e0c958266b5cdcElliott Hughes 532b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void Register(Thread* thread); 533b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 534b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void Unregister(Thread* thread); 535b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 536c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes bool Contains(Thread* thread); 537c1674ed06662420213441ff2b818f2f71f9098dcElliott Hughes 538b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void Lock() { 539b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro lock_->Lock(); 540b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 541b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 542b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro void Unlock() { 543b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro lock_->Unlock(); 544b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro }; 545b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 546410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes void VisitRoots(Heap::RootVisitor* visitor, void* arg) const; 547410c0c876f326e14c176a39ba21fc4dd3f7db8abElliott Hughes 548b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro private: 549b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro ThreadList(); 550b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 551b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro std::list<Thread*> list_; 552b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 553b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro Mutex* lock_; 554b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 555b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro DISALLOW_COPY_AND_ASSIGN(ThreadList); 556b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro}; 557b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 558b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiroclass ThreadListLock { 559b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro public: 560b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro ThreadListLock(ThreadList* thread_list, Thread* current_thread) 561b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro : thread_list_(thread_list) { 562b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (current_thread == NULL) { // try to get it from TLS 563b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro current_thread = Thread::Current(); 564b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 565b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro Thread::State old_state; 566b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (current_thread != NULL) { 567ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes old_state = current_thread->SetState(Thread::kWaiting); // TODO: VMWAIT 568b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } else { 569b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro // happens during VM shutdown 570b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro old_state = Thread::kUnknown; // TODO: something else 571b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 572b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro thread_list_->Lock(); 573b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro if (current_thread != NULL) { 574b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro current_thread->SetState(old_state); 575b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 576b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 577b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 578b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro ~ThreadListLock() { 579b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro thread_list_->Unlock(); 580b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro } 581b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 582b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro private: 583b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro ThreadList* thread_list_; 584b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 585b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro DISALLOW_COPY_AND_ASSIGN(ThreadListLock); 586b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro}; 587b557353b22c728eecbd1c68593b482622c7782a8Carl Shapiro 588ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughesclass ScopedThreadStateChange { 589ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes public: 590ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes ScopedThreadStateChange(Thread* thread, Thread::State new_state) : thread_(thread) { 591ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes old_thread_state_ = thread_->SetState(new_state); 592ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes } 593ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes 594ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes ~ScopedThreadStateChange() { 595ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes thread_->SetState(old_thread_state_); 596ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes } 597ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes 598ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes private: 599ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes Thread* thread_; 600ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes Thread::State old_thread_state_; 601ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes DISALLOW_COPY_AND_ASSIGN(ScopedThreadStateChange); 602ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes}; 603ad7c2a3b4daa2abd707375444f4b0db7d69a3838Elliott Hughes 6040e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro} // namespace art 6050e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro 6060e5d75d5ca2b8a44fab0c862276a466cbab39859Carl Shapiro#endif // ART_SRC_THREAD_H_ 607