OSAllocator.h

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OSAllocator.h

Absolute File Name:

/home/opencoverage/opencoverage/guest-scripts/qtdeclarative/src/qtdeclarative/src/3rdparty/masm/wtf/OSAllocator.h

Line	Source	Count
1		-
2	namespace WTF {	-
3		-
4	class OSAllocator {	-
5	public:	-
6	enum Usage {	-
7	UnknownUsage = -1,	-
8	FastMallocPages = 0,	-
9	JSGCHeapPages = 1,	-
10	JSVMStackPages = 3,	-
11	JSJITCodePages = 2,	-
12	};	-
13		-
14		-
15		-
16		-
17	static void* reserveUncommitted(size_t, Usage = UnknownUsage, bool writable = true, bool executable = false);	-
18	static void releaseDecommitted(void*, size_t);	-
19		-
20		-
21		-
22		-
23	static void commit(void*, size_t, bool writable, bool executable);	-
24	static void decommit(void*, size_t);	-
25		-
26		-
27		-
28		-
29	static void* reserveAndCommit(size_t, Usage = UnknownUsage, bool writable = true, bool executable = false, bool includesGuardPages = false);	-
30	static void decommitAndRelease(void* base, size_t size);	-
31		-
32		-
33		-
34		-
35	static void* reserveAndCommit(size_t reserveSize, size_t commitSize, Usage = UnknownUsage, bool writable = true, bool executable = false);	-
36	static void decommitAndRelease(void* releaseBase, size_t releaseSize, void* decommitBase, size_t decommitSize);	-
37		-
38		-
39		-
40		-
41	template<typename T>	-
42	static T* reallocateCommitted(T*, size_t oldSize, size_t newSize, Usage = UnknownUsage, bool writable = true, bool executable = false);	-
43		-
44	static bool canAllocateExecutableMemory();	-
45		-
46		-
47		-
48		-
49	};	-
50		-
51	inline void* OSAllocator::reserveAndCommit(size_t reserveSize, size_t commitSize, Usage usage, bool writable, bool executable)	-
52	{	-
53	void* base = reserveUncommitted(reserveSize, usage, writable, executable);	-
54	commit(base, commitSize, writable, executable);	-
55	return never executed: `return base;` base; never executed: `return base;`	0
56	}	-
57		-
58	inline void OSAllocator::decommitAndRelease(void* releaseBase, size_t releaseSize, void* decommitBase, size_t decommitSize)	-
59	{	-
60	(!(decommitBase >= releaseBase && (static_cast<char>(decommitBase) + decommitSize) <= (static_cast<char>(releaseBase) + releaseSize)) ? (qmlWTFReportAssertionFailure(__FILE__, 91, __PRETTY_FUNCTION__, "decommitBase >= releaseBase && (static_cast<char>(decommitBase) + decommitSize) <= (static_cast<char>(releaseBase) + releaseSize)"), (qmlWTFReportBacktrace(), qmlWTFInvokeCrashHook(), ((int )(uintptr_t)0xbbadbeef = 0), __builtin_trap())) : (void)0);	-
61		-
62		-
63		-
64		-
65		-
66	(void)decommitBase;;	-
67	(void)decommitSize;;	-
68		-
69	releaseDecommitted(releaseBase, releaseSize);	-
70	} executed 505812 times by 153 tests: `end of block` Executed by: tst_bindingdependencyapi tst_drawingmodes tst_ecmascripttests tst_examples tst_flickableinterop tst_multipointtoucharea_interop tst_parserstress tst_qjsengine tst_qjsonbinding tst_qjsvalue tst_qjsvalueiterator tst_qmlcachegen tst_qmldiskcache tst_qqmlapplicationengine tst_qqmlbinding tst_qqmlcomponent tst_qqmlconnections tst_qqmlconsole tst_qqmlcontext tst_qqmldebugclient tst_qqmldebugjs tst_qqmldebuglocal tst_qqmldebugservice tst_qqmlecmascript tst_qqmlenginecleanup ...	505812
71		-
72	inline void OSAllocator::decommitAndRelease(void* base, size_t size)	-
73	{	-
74	decommitAndRelease(base, size, base, size);	-
75	} executed 505820 times by 153 tests: `end of block` Executed by: tst_bindingdependencyapi tst_drawingmodes tst_ecmascripttests tst_examples tst_flickableinterop tst_multipointtoucharea_interop tst_parserstress tst_qjsengine tst_qjsonbinding tst_qjsvalue tst_qjsvalueiterator tst_qmlcachegen tst_qmldiskcache tst_qqmlapplicationengine tst_qqmlbinding tst_qqmlcomponent tst_qqmlconnections tst_qqmlconsole tst_qqmlcontext tst_qqmldebugclient tst_qqmldebugjs tst_qqmldebuglocal tst_qqmldebugservice tst_qqmlecmascript tst_qqmlenginecleanup ...	505820
76		-
77	template<typename T>	-
78	inline T* OSAllocator::reallocateCommitted(T* oldBase, size_t oldSize, size_t newSize, Usage usage, bool writable, bool executable)	-
79	{	-
80	void* newBase = reserveAndCommit(newSize, usage, writable, executable);	-
81	memcpy(newBase, oldBase, std::min(oldSize, newSize));	-
82	decommitAndRelease(oldBase, oldSize);	-
83	return never executed: `return static_cast<T>(newBase);` static_cast<T>(newBase); never executed: `return static_cast<T*>(newBase);`	0
84	}	-
85		-
86	}	-
87		-
88	using WTF::OSAllocator;	-

Line

Source

Count

namespace WTF {

class OSAllocator {

public:

enum Usage {

UnknownUsage = -1,

FastMallocPages = 0,

JSGCHeapPages = 1,

JSVMStackPages = 3,

JSJITCodePages = 2,

};

static void* reserveUncommitted(size_t, Usage = UnknownUsage, bool writable = true, bool executable = false);

static void releaseDecommitted(void*, size_t);

static void commit(void*, size_t, bool writable, bool executable);

static void decommit(void*, size_t);

static void* reserveAndCommit(size_t, Usage = UnknownUsage, bool writable = true, bool executable = false, bool includesGuardPages = false);

static void decommitAndRelease(void* base, size_t size);

static void* reserveAndCommit(size_t reserveSize, size_t commitSize, Usage = UnknownUsage, bool writable = true, bool executable = false);

static void decommitAndRelease(void* releaseBase, size_t releaseSize, void* decommitBase, size_t decommitSize);

template<typename T>

static T* reallocateCommitted(T*, size_t oldSize, size_t newSize, Usage = UnknownUsage, bool writable = true, bool executable = false);

static bool canAllocateExecutableMemory();

};

inline void* OSAllocator::reserveAndCommit(size_t reserveSize, size_t commitSize, Usage usage, bool writable, bool executable)

{

void* base = reserveUncommitted(reserveSize, usage, writable, executable);

commit(base, commitSize, writable, executable);

return

never executed: return base;

base;

never executed: return base;

}

inline void OSAllocator::decommitAndRelease(void* releaseBase, size_t releaseSize, void* decommitBase, size_t decommitSize)

{

(!(decommitBase >= releaseBase && (static_cast<char*>(decommitBase) + decommitSize) <= (static_cast<char*>(releaseBase) + releaseSize)) ? (qmlWTFReportAssertionFailure(__FILE__, 91, __PRETTY_FUNCTION__, "decommitBase >= releaseBase && (static_cast<char*>(decommitBase) + decommitSize) <= (static_cast<char*>(releaseBase) + releaseSize)"), (qmlWTFReportBacktrace(), qmlWTFInvokeCrashHook(), (*(int *)(uintptr_t)0xbbadbeef = 0), __builtin_trap())) : (void)0);

(void)decommitBase;;

(void)decommitSize;;

releaseDecommitted(releaseBase, releaseSize);

}

executed 505812 times by 153 tests: end of block

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugclient
tst_qqmldebugjs
tst_qqmldebuglocal
tst_qqmldebugservice
tst_qqmlecmascript
tst_qqmlenginecleanup
...

505812

inline void OSAllocator::decommitAndRelease(void* base, size_t size)

{

decommitAndRelease(base, size, base, size);

}

executed 505820 times by 153 tests: end of block

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_ecmascripttests
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_parserstress
tst_qjsengine
tst_qjsonbinding
tst_qjsvalue
tst_qjsvalueiterator
tst_qmlcachegen
tst_qmldiskcache
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugclient
tst_qqmldebugjs
tst_qqmldebuglocal
tst_qqmldebugservice
tst_qqmlecmascript
tst_qqmlenginecleanup
...

505820

template<typename T>

inline T* OSAllocator::reallocateCommitted(T* oldBase, size_t oldSize, size_t newSize, Usage usage, bool writable, bool executable)

{

void* newBase = reserveAndCommit(newSize, usage, writable, executable);

memcpy(newBase, oldBase, std::min(oldSize, newSize));

decommitAndRelease(oldBase, oldSize);

return

never executed: return static_cast<T*>(newBase);

static_cast<T*>(newBase);

never executed: return static_cast<T*>(newBase);

}

using WTF::OSAllocator;

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