Binary compatibility report for the libjio library between 0.25 and 0.50 versions on x86

Test Info

Library Name	libjio
Version #1	0.25
Version #2	0.50
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	1
Total Shared Libraries	1
Total Symbols / Types	32 / 41
Verdict	Incompatible (54.7%)

Problem Summary

	Severity	Count
Added Symbols	-	3
Removed Symbols	High	2
Problems with Data Types	High	0
	Medium	2
	Low	0
Problems with Symbols	High	1
	Medium	1
	Low	32
Problems with Constants	Low	10
Other Changes in Constants	-	1

Added Symbols (3)

libjio.h, libjio.so
jfs_autosync_start ( jfs_t* fs, time_t max_sec, size_t max_bytes )
jfs_autosync_stop ( jfs_t* fs )
jtrans_new ( jfs_t* fs )

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Removed Symbols (2)

libjio.h, libjio.so
jfsck_cleanup ( char const* name, char const* jdir )
jtrans_init ( struct jfs* fs, struct jtrans* ts )

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Problems with Symbols, High Severity (1)

	Change	Effect
1	1st middle parameter fs 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.

libjio.h, libjio.so
[+] jopen ( struct jfs* fs, char const* name, int flags, int mode, int jflags ) (1)

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Problems with Data Types, Medium Severity (2)

	Change	Effect
1	This type became opaque.	The internal structure of this type is hidden in the new library version and may be different. This may result in crash or incorrect behavior of applications.

	Change	Effect
1	This type became opaque.	The internal structure of this type is hidden in the new library version and may be different. This may result in crash or incorrect behavior of applications.

libjio.h
[+] struct jfs (1)
[+] struct jtrans (1)

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Problems with Symbols, Medium Severity (1)

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

libjio.h, libjio.so
[+] jfsck ( char const* name, char const* jdir, struct jfsck_result* res ) (1)

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Problems with Symbols, Low Severity (32)

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of return value has been changed from struct jfs* to jfs_t*.	Replacement of return type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 3rd parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.
2	Type of return value has been changed from struct jfs* to jfs_t*.	Replacement of return type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of return value has been changed from int to enum jfsck_return.	Replacement of return type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 4th parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	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.
2	Type of return value has been changed from int to jfs_t*.	Replacement of return type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter stream has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter ts has been changed from struct jtrans* to jtrans_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter ts has been changed from struct jtrans* to jtrans_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter ts has been changed from struct jtrans* to jtrans_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter ts has been changed from struct jtrans* to jtrans_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

	Change	Effect
1	Type of 1st parameter fs has been changed from struct jfs* to jfs_t*.	Replacement of parameter data type may indicate a change in its semantic meaning.

libjio.h, libjio.so
[+] jclearerr ( struct jfs* stream ) (1)
[+] jclose ( struct jfs* fs ) (1)
[+] jfclose ( struct jfs* stream ) (1)
[+] jfeof ( struct jfs* stream ) (1)
[+] jferror ( struct jfs* stream ) (1)
[+] jfileno ( struct jfs* stream ) (1)
[+] jfopen ( char const* path, char const* mode ) (1)
[+] jfread ( void* ptr, size_t size, size_t nmemb, struct jfs* stream ) (1)
[+] jfreopen ( char const* path, char const* mode, struct jfs* stream ) (2)
[+] jfsck ( char const* name, char const* jdir, struct jfsck_result* res ) (1)
[+] jfseek ( struct jfs* stream, long offset, int whence ) (1)
[+] jfsopen ( struct jfs* stream, char const* mode ) (1)
[+] jftell ( struct jfs* stream ) (1)
[+] jfwrite ( void const* ptr, size_t size, size_t nmemb, struct jfs* stream ) (1)
[+] jlseek ( struct jfs* fs, off_t offset, int whence ) (1)
[+] jmove_journal ( struct jfs* fs, char const* newpath ) (1)
[+] jopen ( struct jfs* fs, char const* name, int flags, int mode, int jflags ) (2)
[+] jpread ( struct jfs* fs, void* buf, size_t count, off_t offset ) (1)
[+] jpwrite ( struct jfs* fs, void const* buf, size_t count, off_t offset ) (1)
[+] jread ( struct jfs* fs, void* buf, size_t count ) (1)
[+] jreadv ( struct jfs* fs, struct iovec const* vector, int count ) (1)
[+] jrewind ( struct jfs* stream ) (1)
[+] jsync ( struct jfs* fs ) (1)
[+] jtrans_add ( struct jtrans* ts, void const* buf, size_t count, off_t offset ) (1)
[+] jtrans_commit ( struct jtrans* ts ) (1)
[+] jtrans_free ( struct jtrans* ts ) (1)
[+] jtrans_rollback ( struct jtrans* ts ) (1)
[+] jtruncate ( struct jfs* fs, off_t length ) (1)
[+] jwrite ( struct jfs* fs, void const* buf, size_t count ) (1)
[+] jwritev ( struct jfs* fs, struct iovec const* vector, int count ) (1)

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Problems with Constants, Low Severity (10)

	Change	Effect
1	The value of constant J_COMMITTED has been changed from 8 to 1024.	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 constant J_DISKHEADSIZE with value 12 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The constant J_DISKOPHEADSIZE with value 16 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The constant J_ENOENT with value -1 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The constant J_ENOJOURNAL with value -2 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The constant J_ENOMEM with value -3 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The constant J_ESUCCESS with value 0 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The value of constant J_RDONLY has been changed from 64 to 512.	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 J_ROLLBACKED has been changed from 16 to 2048.	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 J_ROLLBACKING has been changed from 32 to 4096.	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.

libjio.h
[+] J_COMMITTED
[+] J_DISKHEADSIZE
[+] J_DISKOPHEADSIZE
[+] J_ENOENT
[+] J_ENOJOURNAL
[+] J_ENOMEM
[+] J_ESUCCESS
[+] J_RDONLY
[+] J_ROLLBACKED
[+] J_ROLLBACKING

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Other Changes in Constants (1)

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

libjio.h
[+] J_NOCLEANUP

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Header Files (1)

libjio.h

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Shared Libraries (1)

libjio.so

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