Binary compatibility report for the libjs library between 1.7.0 and 1.8.0-rc1 versions on x86

Test Info

Library Name	libjs
Version #1	1.7.0
Version #2	1.8.0-rc1
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	257 / 182
Verdict	Incompatible (1.4%)

Problem Summary

	Severity	Count
Added Symbols	-	29
Removed Symbols	High	3
Problems with Data Types	High	0
	Medium	1
	Low	0
Problems with Symbols	High	0
	Medium	0
	Low	0
Problems with Constants	Low	4
Other Changes in Data Types	-	5
Other Changes in Constants	-	12

Added Symbols (29)

jsapi.h, libjs.so
JS_AlreadyHasOwnElement ( JSContext* cx, JSObject* obj, jsint index, JSBool* foundp )
JS_AlreadyHasOwnProperty ( JSContext* cx, JSObject* obj, char const* name, JSBool* foundp )
JS_AlreadyHasOwnUCProperty ( JSContext* cx, JSObject* obj, jschar const* name, size_t namelen, JSBool* foundp )
JS_BeginRequest ( JSContext* cx )
JS_CallTracer ( JSTracer* trc, void* thing, uint32 kind )
JS_ClearContextThread ( JSContext* cx )
JS_ClearOperationCallback ( JSContext* cx )
JS_ComputeThis ( JSContext* cx, jsval* vp )
JS_EncodeString ( JSContext* cx, JSString* str )
JS_EndRequest ( JSContext* cx )
JS_GetContextThread ( JSContext* cx )
JS_GetGlobalForObject ( JSContext* cx, JSObject* obj )
JS_GetOperationCallback ( JSContext* cx )
JS_GetOperationLimit ( JSContext* cx )
JS_IsGCMarkingTracer ( JSTracer* trc )
JS_NewObjectWithGivenProto ( JSContext* cx, JSClass* clasp, JSObject* proto, JSObject* parent )
JS_ReportAllocationOverflow ( JSContext* cx )
JS_ResumeRequest ( JSContext* cx, jsrefcount saveDepth )
JS_SetContextThread ( JSContext* cx )
JS_SetCStringsAreUTF8 ( )
JS_SetExtraGCRoots ( JSRuntime* rt, JSTraceDataOp traceOp, void* data )
JS_SetOperationCallback ( JSContext* cx, JSOperationCallback callback, uint32 operationLimit )
JS_SetOperationLimit ( JSContext* cx, uint32 operationLimit )
JS_SetScriptStackQuota ( JSContext* cx, size_t quota )
JS_SuspendRequest ( JSContext* cx )
JS_ThrowStopIteration ( JSContext* cx )
JS_TraceChildren ( JSTracer* trc, void* thing, uint32 kind )
JS_TraceRuntime ( JSTracer* trc )
JS_YieldRequest ( JSContext* cx )

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Removed Symbols (3)

jslong.h, libjs.so
JSLL_MaxInt ( )
JSLL_MinInt ( )
JSLL_Zero ( )

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Problems with Data Types, Medium Severity (1)

	Change	Effect
1	Value of member JSProto_LIMIT has been changed from 31 to 33.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

jspubtd.h
[+] enum JSProtoKey (1)

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Problems with Constants, Low Severity (4)

	Change	Effect
1	The value of constant JSCLASS_NO_RESERVED_MEMBERS has been changed from 0,0,0,0,0 to 0,0,0.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant JSFUN_FLAGS_MASK has been changed from 0x07f8 to 0x0ff8.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant JS_HAS_DESTRUCTURING has been changed from 1 to 2.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

	Change	Effect
1	The value of constant JS_HAS_SCRIPT_OBJECT has been changed from 1 to 0.	Applications will pass an old value of this constant as the parameter to the new-version library functions, that expect a new one. This may result in crash of incorrect behavior of applications.

jsapi.h
[+] JSCLASS_NO_RESERVED_MEMBERS
[+] JSFUN_FLAGS_MASK

jsconfig.h
[+] JS_HAS_DESTRUCTURING
[+] JS_HAS_SCRIPT_OBJECT

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Other Changes in Data Types (5)

	Change	Effect
1	The member JSGC_STACKPOOL_LIFESPAN with value 2 has been added.	No effect.

	Change	Effect
1	The member JSProto_NoSuchMethod with value 32 has been added.	No effect.
2	The member JSProto_XMLFilter with value 31 has been added.	No effect.

	Change	Effect
1	The member JSVERSION_1_8 with value 180 has been added.	No effect.
2	The member JSVERSION_LATEST with value 180 has been added.	No effect.

jsapi.h
[+] enum JSGCParamKey (1)

jspubtd.h
[+] enum JSProtoKey (2)
[+] enum JSVersion (2)

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Other Changes in Constants (12)

	Change	Effect
1	The constant JS_DEFAULT_SCRIPT_STACK_QUOTA with value ((size_t) 0x2000000) has been added.	No effect.

	Change	Effect
1	The constant JS_MAX_OPERATION_LIMIT with value ((uint32) 0x7FFFFFFF) has been added.	No effect.

	Change	Effect
1	The constant JS_OPERATION_WEIGHT_BASE with value 4096 has been added.	No effect.

	Change	Effect
1	The constant JSCLASS_MARK_IS_TRACE with value (1<<(JSCLASS_HIGH_FLAGS_SHIFT+3)) has been added.	No effect.

	Change	Effect
1	The constant JSFUN_FAST_NATIVE with value 0x0800 has been added.	No effect.

	Change	Effect
1	The constant JSFUN_STUB_GSOPS with value 0x1000 has been added.	No effect.

	Change	Effect
1	The constant JSREG_STICKY with value 0x08 has been added.	No effect.

	Change	Effect
1	The constant JSTRACE_DOUBLE with value 1 has been added.	No effect.

	Change	Effect
1	The constant JSTRACE_OBJECT with value 0 has been added.	No effect.

	Change	Effect
1	The constant JSTRACE_STRING with value 2 has been added.	No effect.

	Change	Effect
1	The constant JS_HAS_EXPR_CLOSURES with value 1 has been added.	No effect.

	Change	Effect
1	The constant JS_HAS_GENERATOR_EXPRS with value 1 has been added.	No effect.

jsapi.h
[+] JS_DEFAULT_SCRIPT_STACK_QUOTA
[+] JS_MAX_OPERATION_LIMIT
[+] JS_OPERATION_WEIGHT_BASE
[+] JSCLASS_MARK_IS_TRACE
[+] JSFUN_FAST_NATIVE
[+] JSFUN_STUB_GSOPS
[+] JSREG_STICKY
[+] JSTRACE_DOUBLE
[+] JSTRACE_OBJECT
[+] JSTRACE_STRING

jsconfig.h
[+] JS_HAS_EXPR_CLOSURES
[+] JS_HAS_GENERATOR_EXPRS

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Header Files (1)

jsapi.h

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Shared Libraries (1)

libjs.so

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