Binary compatibility report for the mongoDB library between 1.6.5 and 1.7.0 versions on x86

Test Info

Library Name	mongoDB
Version #1	1.6.5
Version #2	1.7.0
CPU Architecture	x86
GCC Version	4.5

Test Results

Total Header Files	1
Total Shared Libraries	2
Total Symbols / Types	447 / 352
Verdict	Incompatible (19.69%)

Problem Summary

	Severity	Count
Added Symbols	-	3
Removed Symbols	High	15
Problems with Data Types	High	2
	Medium	2
	Low	4
Problems with Symbols	High	3
	Medium	0
	Low	0
Problems with Constants	Low	0
Other Changes	-	0

Added Symbols (3)

message.h, libmongoshellfiles.so
namespace mongo
MessagingPort::MessagingPort [in-charge] ( int timeout, int logLevel )
MessagingPort::MessagingPort [not-in-charge] ( int timeout, int logLevel )

pch.h, libmongoshellfiles.so
namespace mongo
dbexit ( ExitCode returnCode, char const* whyMsg, bool tryToGetLock )

to the top

Removed Symbols (15)

error_code.hpp, libmongoshellfiles.so
namespace boost::system
vtable for error_category [data]

exceptions.hpp, libmongoshellfiles.so
namespace boost
vtable for lock_error [data]
vtable for thread_exception [data]
vtable for thread_resource_error [data]

message.h, libmongoshellfiles.so
namespace mongo
MessagingPort::MessagingPort [in-charge] ( double timeout, int logLevel )
MessagingPort::MessagingPort [not-in-charge] ( double timeout, int logLevel )

pch.h, libmongoshellfiles.so
namespace mongo
dbexit ( ExitCode returnCode, char const* whyMsg )

sp_counted_impl.hpp, libmongoshellfiles.so
namespace boost::detail
sp_counted_impl_p<boost::filesystem2::detail::dir_itr_imp<boost::filesystem2::path> >::dispose ( )
sp_counted_impl_p<boost::filesystem2::detail::dir_itr_imp<boost::filesystem2::path> >::get_deleter ( sp_typeinfo const& p1 )
sp_counted_impl_p<boost::filesystem2::detail::dir_itr_imp<boost::filesystem2::path> >::~sp_counted_impl_p [in-charge-deleting] ( )
sp_counted_impl_p<boost::filesystem2::detail::dir_itr_imp<boost::filesystem2::path> >::~sp_counted_impl_p [in-charge] ( )
sp_counted_impl_p<boost::filesystem2::filesystem_error::m_imp>::dispose ( )
sp_counted_impl_p<boost::filesystem2::filesystem_error::m_imp>::get_deleter ( sp_typeinfo const& p1 )
sp_counted_impl_p<boost::filesystem2::filesystem_error::m_imp>::~sp_counted_impl_p [in-charge-deleting] ( )
sp_counted_impl_p<boost::filesystem2::filesystem_error::m_imp>::~sp_counted_impl_p [in-charge] ( )

to the top

Problems with Data Types, High Severity (2)

	Change	Effect
1	Size of this class has been changed from 116 bytes to 112 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<< ( StringData 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) - 24 entries	Virtual Table (New) - 25 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::operator<<	Nullstream::operator<<
92	Nullstream::flush	Nullstream::operator<<
96		Nullstream::flush

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

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

to the top

Problems with Symbols, High Severity (3)

	Change	Effect
1	Parameters list has been changed.	The name of the appropriate symbol for this function on binary level has been changed from _ZN5mongo13MessagingPortC1Edi to _ZN5mongo13MessagingPortC1Eii. 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 _ZN5mongo13MessagingPortC2Edi to _ZN5mongo13MessagingPortC2Eii. 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 _ZN5mongo6dbexitENS_8ExitCodeEPKc to _ZN5mongo6dbexitENS_8ExitCodeEPKcb. This may cause "undefined reference" linker error in old client applications.

message.h, libmongoshellfiles.so
namespace mongo
[+] MessagingPort::MessagingPort [in-charge] ( double timeout, int logLevel ) (1)
[+] MessagingPort::MessagingPort [not-in-charge] ( double timeout, int logLevel ) (1)

pch.h, libmongoshellfiles.so
namespace mongo
[+] dbexit ( ExitCode returnCode, char const* whyMsg ) (1)

to the top

Problems with Data Types, Medium Severity (2)

	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) - 24 entries	Virtual Table (New) - 25 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::operator<<	Logstream::operator<<
92	Logstream::flush	Logstream::operator<<
96		Logstream::flush

	Change	Effect
1	Type of field _timeout has been changed from double (8 bytes) to int (4 bytes).	1) Size of the inclusive type has changed. 2) Previous accesses of applications and library functions to this field and fields at higher positions of the structure definition may be broken.

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

message.h
namespace mongo
[+] class MessagingPort (1)

to the top

Problems with Data Types, Low Severity (4)

	Change	Effect
1	Field jsonp has been added to this type.	NOTE: this field should be accessed only from the new library functions, otherwise it may result in crash or incorrect behavior of applications.

	Change	Effect
1	Type of field _timeout has been changed from double (8 bytes) to int (4 bytes).	Size of the inclusive type has changed.

	Change	Effect
1	Size of this type has been changed from 160 bytes to 156 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

	Change	Effect
1	Name of member with value 14 has been changed from EXIT_ABRUBT to EXIT_ABRUPT.	Applications may execute a wrong branch of code in the library and therefore change the behavior.

cmdline.h
namespace mongo
[+] class CmdLine (1)

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

message.h
namespace mongo
[+] class MessagingPort (1)

pch.h
namespace mongo
[+] enum ExitCode (1)

to the top

Header Files (1)

dbclient.h

to the top

Shared Libraries (2)

libmongoclient.so
libmongoshellfiles.so

to the top