Binary compatibility report for the mongoDB library between 1.5.5 and 1.5.6 versions on x86

Test Info

Library Name	mongoDB
Version #1	1.5.5
Version #2	1.5.6
CPU Architecture	x86
GCC Version	4.5

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	431 / 331
Verdict	Incompatible (18.33%)

Problem Summary

	Severity	Count
Added Symbols	-	7
Removed Symbols	High	6
Problems with Data Types	High	5
	Medium	4
	Low	2
Problems with Symbols	High	6
	Medium	1
	Low	0
Problems with Constants	Low	0
Other Changes	-	0

Added Symbols (7)

bsonobj.h, libmongoclient.so
namespace mongo
BSONObj::getFieldsDotted ( StringData const& name, BSONElementSet& ret ) const

bsonobjbuilder.h, libmongoclient.so
namespace mongo
BSONObjBuilder::appendAsNumber ( StringData const& fieldName, std::string const& data )
BSONObjBuilder::appendMaxForType ( StringData const& fieldName, int type )
BSONObjBuilder::appendMinForType ( StringData const& fieldName, int type )

dbclient.h, libmongoclient.so
namespace mongo
DBClientInterface::findOne ( std::string const& ns, Query const& query, BSONObj const* fieldsToReturn, int queryOptions )
DBClientPaired::callRead ( Message& toSend, Message& response )
DBClientPaired::findOne ( std::string const& ns, Query const& query, BSONObj const* fieldsToReturn, int queryOptions )

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Removed Symbols (6)

bsonobj.h, libmongoclient.so
namespace mongo
BSONObj::getFieldsDotted ( char const* name, BSONElementSet& ret ) const

bsonobjbuilder.h, libmongoclient.so
namespace mongo
BSONObjBuilder::appendAsNumber ( std::string const& fieldName, std::string const& data )
BSONObjBuilder::appendMaxForType ( std::string const& field, int type )
BSONObjBuilder::appendMinForType ( std::string const& field, int type )

dbclient.h, libmongoclient.so
namespace mongo
DBClientInterface::findOne ( std::string const& ns, Query query, BSONObj const* fieldsToReturn, int queryOptions )
DBClientPaired::findOne ( std::string const& ns, Query query, BSONObj const* fieldsToReturn, int queryOptions )

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Problems with Data Types, High Severity (5)

	Change	Effect
1	Size of v-table in this class has been changed from 148 bytes to 156 bytes.	The layout of v-tables in its subclasses has been changed. Call of any virtual method in subclasses may result in crash or incorrect behavior of applications.
2	Pure virtual method DBClientBase::callRead ( Message& toSend, Message& response ) has been added to this class.	1) Applications will not provide the implementation for this pure virtual method and therefore cause a crash in the library trying to call this method. 2) The layout of v-table has been changed. Call of any virtual method at higher position in this class or its subclasses may result in crash or incorrect behavior of applications.
3	Pure virtual method DBClientBase::say ( Message& toSend ) has been added to this class.	1) Applications will not provide the implementation for this pure virtual method and therefore cause a crash in the library trying to call this method. 2) The layout of v-table has been changed. Call of any virtual method at higher position in this class or its subclasses may result in crash or incorrect behavior of applications.

Offset	Virtual Table (Old) - 37 entries	Virtual Table (New) - 39 entries
0	(int (*)(...))0	(int (*)(...))0
4	(int (*)(...))(& typeinfo)	(int (*)(...))(& typeinfo)
8	DBClientBase::query	DBClientBase::query
12	DBClientBase::getMore	DBClientBase::getMore
16	DBClientBase::insert	DBClientBase::insert
20	DBClientBase::insert	DBClientBase::insert
24	DBClientBase::remove	DBClientBase::remove
28	DBClientBase::update	DBClientBase::update
32	~DBClientBase	~DBClientBase
36	~DBClientBase	~DBClientBase
40	DBClientInterface::findOne	DBClientInterface::findOne
44	DBClientWithCommands::runCommand	DBClientWithCommands::runCommand
48	DBClientWithCommands::auth	DBClientWithCommands::auth
52	DBClientWithCommands::isMaster	DBClientWithCommands::isMaster
56	DBClientWithCommands::getLastErrorDetailed	DBClientWithCommands::getLastErrorDetailed
60	DBClientWithCommands::dropCollection	DBClientWithCommands::dropCollection
64	DBClientWithCommands::ensureIndex	DBClientWithCommands::ensureIndex
68	DBClientWithCommands::resetIndexCache	DBClientWithCommands::resetIndexCache
72	DBClientWithCommands::getIndexes	DBClientWithCommands::getIndexes
76	DBClientWithCommands::dropIndex	DBClientWithCommands::dropIndex
80	DBClientWithCommands::dropIndex	DBClientWithCommands::dropIndex
84	DBClientWithCommands::dropIndexes	DBClientWithCommands::dropIndexes
88	DBClientWithCommands::reIndex	DBClientWithCommands::reIndex
92	DBClientWithCommands::dropDatabase	DBClientWithCommands::dropDatabase
96	__cxa_pure_virtual	__cxa_pure_virtual
100	__cxa_pure_virtual	__cxa_pure_virtual
104	__cxa_pure_virtual	__cxa_pure_virtual
108	__cxa_pure_virtual	__cxa_pure_virtual
112	(int (*)(...))-0x000000028	__cxa_pure_virtual
116	(int (*)(...))(& typeinfo)	__cxa_pure_virtual
120	non-virtual thunk	(int (*)(...))-0x000000028
124	non-virtual thunk	(int (*)(...))(& typeinfo)
128	__cxa_pure_virtual	non-virtual thunk
132	__cxa_pure_virtual	non-virtual thunk
136	__cxa_pure_virtual	__cxa_pure_virtual
140	DBConnector::checkResponse	__cxa_pure_virtual
144	DBConnector::recv	__cxa_pure_virtual
148		DBConnector::checkResponse
152		DBConnector::recv

	Change	Effect
1	Size of this class has been changed from 40 bytes to 52 bytes.	1) The class has only inline or auto-generated constructors which will be copied to applications at compile time and will allocate an older memory layout. Call of any exported method of this class may access a memory outside the allocated objects or inside the older memory structure and result in crash or incorrect behavior of applications. 2) The memory layout and size of subclasses will be changed.

	Change	Effect
1	Virtual method Nullstream::operator<< ( std::string const& p1 ) has been added to this class.	The layout of v-table has been changed. Call of any virtual method at higher position in this class or its subclasses may result in crash or incorrect behavior of applications.

Offset	Virtual Table (Old) - 23 entries	Virtual Table (New) - 24 entries
0	(int (*)(...))0	(int (*)(...))0
4	(int (*)(...))(& typeinfo)	(int (*)(...))(& typeinfo)
8	Nullstream::operator<<	Nullstream::operator<<
12	~Nullstream	~Nullstream
16	~Nullstream	~Nullstream
20	Nullstream::operator<<	Nullstream::operator<<
24	Nullstream::operator<<	Nullstream::operator<<
28	Nullstream::operator<<	Nullstream::operator<<
32	Nullstream::operator<<	Nullstream::operator<<
36	Nullstream::operator<<	Nullstream::operator<<
40	Nullstream::operator<<	Nullstream::operator<<
44	Nullstream::operator<<	Nullstream::operator<<
48	Nullstream::operator<<	Nullstream::operator<<
52	Nullstream::operator<<	Nullstream::operator<<
56	Nullstream::operator<<	Nullstream::operator<<
60	Nullstream::operator<<	Nullstream::operator<<
64	Nullstream::operator<<	Nullstream::operator<<
68	Nullstream::operator<<	Nullstream::operator<<
72	Nullstream::operator<<	Nullstream::operator<<
76	Nullstream::operator<<	Nullstream::operator<<
80	Nullstream::operator<<	Nullstream::operator<<
84	Nullstream::operator<<	Nullstream::operator<<
88	Nullstream::flush	Nullstream::operator<<
92		Nullstream::flush

dbclient.h
namespace mongo
[+] class DBClientBase (3)

lasterror.h
namespace mongo
[+] class LastError (1)

log.h
namespace mongo
[+] class Nullstream (1)

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Problems with Symbols, High Severity (6)

	Change	Effect
1	Parameters list has been changed.	The name of the appropriate symbol for this function on binary level has been changed from _ZNK5mongo7BSONObj15getFieldsDottedEPKcRSt3setINS_11BSONElementENS_26BSONElementCmpWithoutFieldESaIS4_EE to _ZNK5mongo7BSONObj15getFieldsDottedERKNS_10StringDataERSt3setINS_11BSONElementENS_26BSONElementCmpWithoutFieldESaIS5_EE. This may cause "undefined reference" linker error in old client applications.

	Change	Effect
1	Parameters list has been changed.	The name of the appropriate symbol for this function on binary level has been changed from _ZN5mongo14BSONObjBuilder14appendAsNumberERKSsS2_ to _ZN5mongo14BSONObjBuilder14appendAsNumberERKNS_10StringDataERKSs. This may cause "undefined reference" linker error in old client applications.

	Change	Effect
1	Parameters list has been changed.	The name of the appropriate symbol for this function on binary level has been changed from _ZN5mongo14BSONObjBuilder16appendMaxForTypeERKSsi to _ZN5mongo14BSONObjBuilder16appendMaxForTypeERKNS_10StringDataEi. This may cause "undefined reference" linker error in old client applications.

	Change	Effect
1	Parameters list has been changed.	The name of the appropriate symbol for this function on binary level has been changed from _ZN5mongo14BSONObjBuilder16appendMinForTypeERKSsi to _ZN5mongo14BSONObjBuilder16appendMinForTypeERKNS_10StringDataEi. This may cause "undefined reference" linker error in old client applications.

	Change	Effect
1	Parameters list has been changed.	The name of the appropriate symbol for this function on binary level has been changed from _ZN5mongo17DBClientInterface7findOneERKSsNS_5QueryEPKNS_7BSONObjEi to _ZN5mongo17DBClientInterface7findOneERKSsRKNS_5QueryEPKNS_7BSONObjEi. This may cause "undefined reference" linker error in old client applications.

	Change	Effect
1	Parameters list has been changed.	The name of the appropriate symbol for this function on binary level has been changed from _ZN5mongo14DBClientPaired7findOneERKSsNS_5QueryEPKNS_7BSONObjEi to _ZN5mongo14DBClientPaired7findOneERKSsRKNS_5QueryEPKNS_7BSONObjEi. This may cause "undefined reference" linker error in old client applications.

bsonobj.h, libmongoclient.so
namespace mongo
[+] BSONObj::getFieldsDotted ( char const* name, BSONElementSet& ret ) const (1)

bsonobjbuilder.h, libmongoclient.so
namespace mongo
[+] BSONObjBuilder::appendAsNumber ( std::string const& fieldName, std::string const& data ) (1)
[+] BSONObjBuilder::appendMaxForType ( std::string const& field, int type ) (1)
[+] BSONObjBuilder::appendMinForType ( std::string const& field, int type ) (1)

dbclient.h, libmongoclient.so
namespace mongo
[+] DBClientInterface::findOne ( std::string const& ns, Query query, BSONObj const* fieldsToReturn, int queryOptions ) (1)
[+] DBClientPaired::findOne ( std::string const& ns, Query query, BSONObj const* fieldsToReturn, int queryOptions ) (1)

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Problems with Data Types, Medium Severity (4)

	Change	Effect
1	Virtual method DBClientInterface::findOne ( std::string const& ns, Query const& query, BSONObj const* fieldsToReturn, int queryOptions ) has been added to this class instead of DBClientInterface::findOne ( std::string const& ns, Query query, BSONObj const* fieldsToReturn, int queryOptions ).	Applications will pass parameters of older replaced method to newly added virtual method. This may result in crash or incorrect behavior of applications.

Offset	Virtual Table (Old) - 11 entries	Virtual Table (New) - 11 entries
0	(int (*)(...))0	(int (*)(...))0
4	(int (*)(...))(& typeinfo)	(int (*)(...))(& typeinfo)
8	__cxa_pure_virtual	__cxa_pure_virtual
12	__cxa_pure_virtual	__cxa_pure_virtual
16	__cxa_pure_virtual	__cxa_pure_virtual
20	__cxa_pure_virtual	__cxa_pure_virtual
24	__cxa_pure_virtual	__cxa_pure_virtual
28	__cxa_pure_virtual	__cxa_pure_virtual
32	~DBClientInterface	~DBClientInterface
36	~DBClientInterface	~DBClientInterface
40	DBClientInterface::findOne	DBClientInterface::findOne

	Change	Effect
1	The layout of v-table has been changed for unknown reason.	Call of any method in this class may result in crash or incorrect behavior of applications.

Offset	Virtual Table (Old) - 41 entries	Virtual Table (New) - 42 entries
0	(int (*)(...))0	(int (*)(...))0
4	(int (*)(...))(& typeinfo)	(int (*)(...))(& typeinfo)
8	DBClientPaired::query	DBClientPaired::query
12	DBClientBase::getMore	DBClientBase::getMore
16	DBClientPaired::insert	DBClientPaired::insert
20	DBClientPaired::insert	DBClientPaired::insert
24	DBClientPaired::remove	DBClientPaired::remove
28	DBClientPaired::update	DBClientPaired::update
32	~DBClientPaired	~DBClientPaired
36	~DBClientPaired	~DBClientPaired
40	DBClientPaired::findOne	DBClientPaired::findOne
44	DBClientWithCommands::runCommand	DBClientWithCommands::runCommand
48	DBClientWithCommands::auth	DBClientWithCommands::auth
52	DBClientWithCommands::isMaster	DBClientWithCommands::isMaster
56	DBClientWithCommands::getLastErrorDetailed	DBClientWithCommands::getLastErrorDetailed
60	DBClientWithCommands::dropCollection	DBClientWithCommands::dropCollection
64	DBClientWithCommands::ensureIndex	DBClientWithCommands::ensureIndex
68	DBClientWithCommands::resetIndexCache	DBClientWithCommands::resetIndexCache
72	DBClientWithCommands::getIndexes	DBClientWithCommands::getIndexes
76	DBClientWithCommands::dropIndex	DBClientWithCommands::dropIndex
80	DBClientWithCommands::dropIndex	DBClientWithCommands::dropIndex
84	DBClientWithCommands::dropIndexes	DBClientWithCommands::dropIndexes
88	DBClientWithCommands::reIndex	DBClientWithCommands::reIndex
92	DBClientWithCommands::dropDatabase	DBClientWithCommands::dropDatabase
96	DBClientPaired::toString	DBClientPaired::toString
100	DBClientPaired::getServerAddress	DBClientPaired::getServerAddress
104	DBClientPaired::isFailed	DBClientPaired::isFailed
108	DBClientPaired::killCursor	DBClientPaired::killCursor
112	DBClientPaired::call	DBClientPaired::callRead
116	DBClientPaired::say	DBClientPaired::say
120	DBClientPaired::sayPiggyBack	DBClientPaired::call
124	DBClientPaired::checkResponse	DBClientPaired::sayPiggyBack
128	(int (*)(...))-0x000000028	DBClientPaired::checkResponse
132	(int (*)(...))(& typeinfo)	(int (*)(...))-0x000000028
136	non-virtual thunk	(int (*)(...))(& typeinfo)
140	non-virtual thunk	non-virtual thunk
144	non-virtual thunk	non-virtual thunk
148	non-virtual thunk	non-virtual thunk
152	non-virtual thunk	non-virtual thunk
156	non-virtual thunk	non-virtual thunk
160	DBConnector::recv	non-virtual thunk
164		DBConnector::recv

	Change	Effect
1	Field writebackId has been added at the middle position of this structural type.	1) Size of the inclusive type has been changed. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

	Change	Effect
1	The layout of v-table has been changed for unknown reason.	Call of any method in this class may result in crash or incorrect behavior of applications.

Offset	Virtual Table (Old) - 23 entries	Virtual Table (New) - 24 entries
0	(int (*)(...))0	(int (*)(...))0
4	(int (*)(...))(& typeinfo)	(int (*)(...))(& typeinfo)
8	Logstream::operator<<	Logstream::operator<<
12	~Logstream	~Logstream
16	~Logstream	~Logstream
20	Logstream::operator<<	Logstream::operator<<
24	Logstream::operator<<	Logstream::operator<<
28	Logstream::operator<<	Logstream::operator<<
32	Logstream::operator<<	Logstream::operator<<
36	Logstream::operator<<	Logstream::operator<<
40	Logstream::operator<<	Logstream::operator<<
44	Logstream::operator<<	Logstream::operator<<
48	Logstream::operator<<	Logstream::operator<<
52	Logstream::operator<<	Logstream::operator<<
56	Logstream::operator<<	Logstream::operator<<
60	Logstream::operator<<	Logstream::operator<<
64	Logstream::operator<<	Logstream::operator<<
68	Logstream::operator<<	Logstream::operator<<
72	Logstream::operator<<	Logstream::operator<<
76	Logstream::operator<<	Logstream::operator<<
80	Logstream::operator<<	Logstream::operator<<
84	Logstream::operator<<	Logstream::operator<<
88	Logstream::flush	Logstream::operator<<
92		Logstream::flush

dbclient.h
namespace mongo
[+] class DBClientInterface (1)
[+] class DBClientPaired (1)

lasterror.h
namespace mongo
[+] class LastError (1)

log.h
namespace mongo
[+] class Logstream (1)

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Problems with Symbols, Medium Severity (1)

	Change	Effect
1	Size of this global data has been changed from 56 bytes to 60 bytes.	Applications will obtain a different value and execution may change.

cmdline.h, libmongoclient.so
namespace mongo
[+] cmdLine [data] (1)

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Problems with Data Types, Low Severity (2)

	Change	Effect
1	Field moveParanoia has been added to this type.	Size of the inclusive type has been changed. NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.
2	Size of this type has been changed from 56 bytes to 60 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

cmdline.h
namespace mongo
[+] class CmdLine (2)

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Header Files (1)

dbclient.h

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Shared Libraries (1)

libmongoclient.so

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