Binary compatibility report for the libopenjp2.so object between 2.0.1 and 2.1 versions on x86_64

Test Info

Module Name	libopenjp2
Version #1	2.0.1 (gcc 4.9.2)
Version #2	2.1 (gcc 4.8.1)
CPU Type	x86_64

Test Results

Total Header Files	1
Total Source Files	3
Total Objects	1
Total Symbols / Types	43 / 107
Compatibility	91.9%

Problem Summary

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

Problems with Symbols, High Severity 7

	Change	Effect
1	The parameter p_cstr_index became passed in rdi register instead of rax.	Applications will read the wrong memory block instead of the parameter value.

	Change	Effect
1	The parameter p_data_size became passed in rbx register instead of rcx.	Applications will read the wrong memory block instead of the parameter value.
2	The parameter p_tile_index became passed in rbp register instead of rdx.	Applications will read the wrong memory block instead of the parameter value.
3	The parameter p_tile_x0 became passed in rcx register instead of r8.	Applications will read the wrong memory block instead of the parameter value.
4	The parameter p_tile_y0 became passed in r8 register instead of r9.	Applications will read the wrong memory block instead of the parameter value.

	Change	Effect
1	The parameter p_is_read_stream became passed in rbx register instead of rdx.	Applications will read the wrong memory block instead of the parameter value.
2	The parameter p_size became passed in r12 register instead of rsi.	Applications will read the wrong memory block instead of the parameter value.

openjpeg.h, libopenjp2.so.2.0.1
[+] opj_destroy_cstr_index ( opj_codestream_index_t** p_cstr_index ) 1
[+] opj_read_tile_header ( opj_codec_t* p_codec, opj_stream_t* p_stream, OPJ_UINT32* p_tile_index, OPJ_UINT32* p_data_size, OPJ_INT32* p_tile_x0, OPJ_INT32* p_tile_y0, OPJ_INT32* p_tile_x1, OPJ_INT32* p_tile_y1, OPJ_UINT32* p_nb_comps, OPJ_BOOL* p_should_go_on ) 4
[+] opj_stream_create_file_stream ( FILE* p_file, OPJ_SIZE_T p_size, OPJ_BOOL p_is_read_stream ) 2

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Problems with Symbols, Medium Severity 6

	Change	Effect
1	The parameter p_nb_comps became passed in rdx register instead of stack.	Violation of the calling convention. This may result in crash or incorrect behavior of applications.
2	The parameter p_should_go_on became passed in rdx register instead of stack.	Violation of the calling convention. This may result in crash or incorrect behavior of applications.
3	The parameter p_tile_y1 became passed in rdx register instead of stack.	Violation of the calling convention. This may result in crash or incorrect behavior of applications.

	Change	Effect
1	Base type of 1st parameter p_file has been changed from struct _IO_FILE (216 bytes) to char (1 byte).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Base type of 1st parameter p_file has been changed from struct _IO_FILE (216 bytes) to char (1 byte).	This parameter may be incorrectly initialized by applications.

	Change	Effect
1	Parameter p_function of type opj_stream_free_user_data_fn has been added to the calling stack.	This parameter will not be initialized by old clients.

openjpeg.h, libopenjp2.so.2.0.1
[+] opj_read_tile_header ( opj_codec_t* p_codec, opj_stream_t* p_stream, OPJ_UINT32* p_tile_index, OPJ_UINT32* p_data_size, OPJ_INT32* p_tile_x0, OPJ_INT32* p_tile_y0, OPJ_INT32* p_tile_x1, OPJ_INT32* p_tile_y1, OPJ_UINT32* p_nb_comps, OPJ_BOOL* p_should_go_on ) 3
[+] opj_stream_create_default_file_stream ( FILE* p_file, OPJ_BOOL p_is_read_stream ) 1
[+] opj_stream_create_file_stream ( FILE* p_file, OPJ_SIZE_T p_size, OPJ_BOOL p_is_read_stream ) 1
[+] opj_stream_set_user_data ( opj_stream_t* p_stream, void* p_data ) 1

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Problems with Data Types, Low Severity 5

	Change	Effect
1	Field max_cs_size has been added to this type.	1) This field will not be initialized by old clients. 2) 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 18712 bytes to 18720 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.
3	Field rsiz has been added to this type.	This field will not be initialized by old clients. 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	Field alpha has been added to this type.	1) This field will not be initialized by old clients. 2) 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 64 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

openjpeg.h
[+] struct opj_cparameters 3
[+] struct opj_image_comp 2

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Problems with Symbols, Low Severity 2

	Change	Effect
1	1st parameter p_file has been renamed to fname.	Renaming of a parameter may indicate a change in its semantic meaning.

	Change	Effect
1	1st parameter p_file has been renamed to fname.	Renaming of a parameter may indicate a change in its semantic meaning.

openjpeg.h, libopenjp2.so.2.0.1
[+] opj_stream_create_default_file_stream ( FILE* p_file, OPJ_BOOL p_is_read_stream ) 1
[+] opj_stream_create_file_stream ( FILE* p_file, OPJ_SIZE_T p_size, OPJ_BOOL p_is_read_stream ) 1

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Other Changes in Data Types 4

	Change	Effect
1	The member OPJ_CODEC_JPP with value 3 has been added.	No effect.
2	The member OPJ_CODEC_JPX with value 4 has been added.	No effect.

	Change	Effect
1	The member OPJ_CLRSPC_CMYK with value 5 has been added.	No effect.
2	The member OPJ_CLRSPC_EYCC with value 4 has been added.	No effect.

openjpeg.h
[+] enum CODEC_FORMAT 2
[+] enum COLOR_SPACE 2

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Header Files 1

openjpeg.h

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Source Files 3

cio.c
image.c
openjpeg.c

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Objects 1

libopenjp2.so.2.0.1

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