Binary compatibility report for the libnuma library between 1.0.2 and 2.0.0 versions on x86

Test Info

Library Name	libnuma
Version #1	1.0.2
Version #2	2.0.0
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	2
Total Shared Libraries	1
Total Symbols / Types	41 / 20
Verdict	Incompatible (11%)

Problem Summary

	Severity	Count
Added Symbols	-	25
Removed Symbols	High	0
Problems with Data Types	High	0
	Medium	0
	Low	0
Problems with Symbols	High	5
	Medium	3
	Low	14
Problems with Constants	Low	0

Added Symbols (25)

numa.h, libnuma.so.1
copy_bitmask_to_nodemask ( bitmask* p1, nodemask_t* p2 ) @@ libnuma_1.2
copy_nodemask_to_bitmask ( nodemask_t* p1, bitmask* p2 ) @@ libnuma_1.2
numa_all_cpus_ptr [data] @@ libnuma_1.2
numa_all_nodes_ptr [data] @@ libnuma_1.2
numa_allocate_cpumask ( ) @@ libnuma_1.2
numa_allocate_nodemask ( ) @@ libnuma_1.2
numa_bitmask_alloc ( unsigned int p1 ) @@ libnuma_1.2
numa_bitmask_clearall ( bitmask* p1 ) @@ libnuma_1.2
numa_bitmask_clearbit ( bitmask* p1, unsigned int p2 ) @@ libnuma_1.2
numa_bitmask_equal ( bitmask const* p1, bitmask const* p2 ) @@ libnuma_1.2
numa_bitmask_free ( bitmask* p1 ) @@ libnuma_1.2
numa_bitmask_isbitset ( bitmask const* p1, unsigned int p2 ) @@ libnuma_1.2
numa_bitmask_nbytes ( bitmask* p1 ) @@ libnuma_1.2
numa_bitmask_setall ( bitmask* p1 ) @@ libnuma_1.2
numa_bitmask_setbit ( bitmask* p1, unsigned int p2 ) @@ libnuma_1.2
numa_get_mems_allowed ( ) @@ libnuma_1.2
numa_max_possible_node ( ) @@ libnuma_1.2
numa_move_pages ( int pid, unsigned long count, void** pages, int const* nodes, int* status, int flags ) @@ libnuma_1.2
numa_no_nodes_ptr [data] @@ libnuma_1.2
numa_num_configured_cpus ( ) @@ libnuma_1.2
numa_num_configured_nodes ( ) @@ libnuma_1.2
numa_num_possible_nodes ( ) @@ libnuma_1.2
numa_parse_cpustring ( char* p1 ) @@ libnuma_1.2
numa_parse_nodestring ( char* p1 ) @@ libnuma_1.2

numaif.h, libnuma.so.1
move_pages ( int pid, unsigned long count, void** pages, int const* nodes, int* status, int flags ) @@ libnuma_1.2

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Problems with Symbols, High Severity (5)

	Change	Effect
1	Type of return value has been changed from nodemask_t (16 bytes) to bitmask* (4 bytes).	1) The return value became passed in register instead of the hidden first argument (address of the space on the stack provided by the caller) and therefore the layout of parameter's stack has been shifted by 4 bytes. All the parameters will be incorrectly initialized by applications. 2) Applications will read the wrong memory block instead of the return value.

	Change	Effect
1	Type of return value has been changed from nodemask_t (16 bytes) to bitmask* (4 bytes).	1) The return value became passed in register instead of the hidden first argument (address of the space on the stack provided by the caller) and therefore the layout of parameter's stack has been shifted by 4 bytes. All the parameters will be incorrectly initialized by applications. 2) Applications will read the wrong memory block instead of the return value.

	Change	Effect
1	Type of return value has been changed from nodemask_t (16 bytes) to bitmask* (4 bytes).	1) The return value became passed in register instead of the hidden first argument (address of the space on the stack provided by the caller) and therefore the layout of parameter's stack has been shifted by 4 bytes. All the parameters will be incorrectly initialized by applications. 2) Applications will read the wrong memory block instead of the return value.

	Change	Effect
1	2nd parameter p2 has been added to the calling stack at the middle position.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.
2	2nd middle parameter buffer has been removed from the calling stack.	Layout of parameter's stack has been changed and therefore parameters at higher positions in the stack may be incorrectly initialized by applications.

numa.h, libnuma.so.1
[+] numa_get_interleave_mask ( ) (1)
[+] numa_get_membind ( ) (1)
[+] numa_get_run_node_mask ( ) (1)
[+] numa_node_to_cpus ( int node, unsigned long* buffer, int buffer_len ) (2)

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Problems with Symbols, Medium Severity (3)

	Change	Effect
1	This global data became non-const.	This data will be copied to applications at compile time. Any attempts to change this global data by library functions may result in crash of applications.

	Change	Effect
1	This global data became non-const.	This data will be copied to applications at compile time. Any attempts to change this global data by library functions may result in crash of applications.

	Change	Effect
1	3rd parameter buffer_len has been removed from the calling stack.	This parameter will be ignored by the function.

numa.h, libnuma.so.1
[+] numa_all_nodes [data] (1)
[+] numa_no_nodes [data] (1)
[+] numa_node_to_cpus ( int node, unsigned long* buffer, int buffer_len ) (1)

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Problems with Symbols, Low Severity (14)

	Change	Effect
1	Type of this global data has been changed from nodemask_t const to nodemask_t.	Replacement of data type may indicate a change in semantic meaning.

	Change	Effect
1	Base type of 2nd parameter nodemask has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter nodes has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.

	Change	Effect
1	The pointer level of return value has been increased from 0 to 1.	Applications will treat the return value as the lower-dimension array and will not read all elements. This may change the behavior of applications.

	Change	Effect
1	The pointer level of return value has been increased from 0 to 1.	Applications will treat the return value as the lower-dimension array and will not read all elements. This may change the behavior of applications.

	Change	Effect
1	The pointer level of return value has been increased from 0 to 1.	Applications will treat the return value as the lower-dimension array and will not read all elements. This may change the behavior of applications.

	Change	Effect
1	Base type of 3rd parameter mask has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 2nd parameter from has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.
2	Base type of 3rd parameter to has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.

	Change	Effect
1	Type of this global data has been changed from nodemask_t const to nodemask_t.	Replacement of data type may indicate a change in semantic meaning.

	Change	Effect
1	Base type of 1st parameter mask has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter nodemask has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter nodemask has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 3rd parameter mask has been changed from nodemask_t (16 bytes) to bitmask (8 bytes).	Memory stored by pointer may be incorrectly initialized by applications.

numa.h, libnuma.so.1
[+] numa_all_nodes [data] (1)
[+] numa_alloc_interleaved_subset ( size_t size, nodemask_t const* nodemask ) (1)
[+] numa_bind ( nodemask_t const* nodes ) (1)
[+] numa_get_interleave_mask ( ) (1)
[+] numa_get_membind ( ) (1)
[+] numa_get_run_node_mask ( ) (1)
[+] numa_interleave_memory ( void* mem, size_t size, nodemask_t const* mask ) (1)
[+] numa_migrate_pages ( int pid, nodemask_t const* from, nodemask_t const* to ) (2)
[+] numa_no_nodes [data] (1)
[+] numa_run_on_node_mask ( nodemask_t const* mask ) (1)
[+] numa_set_interleave_mask ( nodemask_t const* nodemask ) (1)
[+] numa_set_membind ( nodemask_t const* nodemask ) (1)
[+] numa_tonodemask_memory ( void* mem, size_t size, nodemask_t const* mask ) (1)

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Header Files (2)

numa.h
numaif.h

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Shared Libraries (1)

libnuma.so.1

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