diff options
| author | Mikhail Svetkin <mikhail.svetkin@qt.io> | 2019-06-27 13:43:04 +0200 |
|---|---|---|
| committer | Mikhail Svetkin <mikhail.svetkin@qt.io> | 2019-06-28 12:50:29 +0200 |
| commit | 239217239499017b4d6864f90ea7c23d31d608f6 (patch) | |
| tree | 27e92dc98e845f9fbf2414d22907a598133adf28 /src/qml/jsruntime/qv4engine_p.h | |
| parent | 2fbf9d0acf4b343c05ed0cec177a35d356a06b4b (diff) | |
Add environment variable for configure maxJSStackSize and maxGCStackSize
QMLEngine by default allocates 4 MB for javascript stack and garbage
collection stack takes 2 MB. It is a lot of memory for platforms without
virtual memory.
Change-Id: I1575dd9584898dca33df66704f716c7b5a7c01c1
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
Diffstat (limited to 'src/qml/jsruntime/qv4engine_p.h')
| -rw-r--r-- | src/qml/jsruntime/qv4engine_p.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/qml/jsruntime/qv4engine_p.h b/src/qml/jsruntime/qv4engine_p.h index f8ac0e0268..ce25ab16b1 100644 --- a/src/qml/jsruntime/qv4engine_p.h +++ b/src/qml/jsruntime/qv4engine_p.h @@ -170,10 +170,6 @@ public: WTF::BumpPointerAllocator *bumperPointerAllocator; // Used by Yarr Regex engine. - enum { - JSStackLimit = 4*1024*1024, - GCStackLimit = 2*1024*1024 - }; WTF::PageAllocation *jsStack; WTF::PageAllocation *gcStack; @@ -641,6 +637,9 @@ public: bool metaTypeFromJS(const Value *value, int type, void *data); QV4::ReturnedValue metaTypeToJS(int type, const void *data); + int maxJSStackSize() const; + int maxGCStackSize() const; + bool checkStackLimits(); bool canJIT(Function *f = nullptr) @@ -734,6 +733,9 @@ private: QHash<QString, quint32> m_consoleCount; QVector<Deletable *> m_extensionData; + + int m_maxJSStackSize = 4 * 1024 * 1024; + int m_maxGCStackSize = 2 * 1024 * 1024; }; #define CHECK_STACK_LIMITS(v4) if ((v4)->checkStackLimits()) return Encode::undefined(); \ |