Binary compatibility report for the libudev library between 079 and 092 versions on x86

Test Info

Library Name	libudev
Version #1	079
Version #2	092
CPU Type	x86
GCC Version	4.6.1

Test Results

Total Header Files	12
Total Shared Libraries	1
Total Symbols / Types	48 / 36
Verdict	Incompatible (29.2%)

Problem Summary

	Severity	Count
Added Symbols	-	18
Removed Symbols	High	9
Problems with Data Types	High	6
	Medium	3
	Low	1
Problems with Symbols	High	0
	Medium	3
	Low	4
Problems with Constants	Low	15
Other Changes in Constants	-	1

Added Symbols (18)

udev.h, libudev.so
sysfs_attr_get_value ( char const* devpath, char const* attr_name )
sysfs_cleanup ( )
sysfs_device_get ( char const* devpath )
sysfs_device_get_parent ( struct sysfs_device* dev )
sysfs_device_get_parent_with_subsystem ( struct sysfs_device* dev, char const* subsystem )
sysfs_device_set_values ( struct sysfs_device* dev, char const* devpath, char const* subsystem )
sysfs_init ( )
udev_config_init ( )
udev_device_cleanup ( struct udevice* udev )
udev_device_event ( struct udev_rules* rules, struct udevice* udev )
udev_device_get_devt ( struct udevice* udev )
udev_device_init ( )
udev_node_add ( struct udevice* udev, struct udevice* udev_old )
udev_node_mknod ( struct udevice* udev, char const* file, dev_t devt, mode_t mode, uid_t uid, gid_t gid )
udev_node_remove ( struct udevice* udev )
udev_node_remove_symlinks ( struct udevice* udev )

udev_rules.h, libudev.so
udev_rules_apply_format ( struct udevice* udev, char* string, size_t maxsize )
udev_rules_cleanup ( struct udev_rules* rules )

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Removed Symbols (9)

udev.h, libudev.so
get_devt ( struct sysfs_class_device* class_dev )
udev_add_device ( struct udevice* udev, struct sysfs_class_device* class_dev )
udev_cleanup_device ( struct udevice* udev )
udev_init_config ( )
udev_init_device ( struct udevice* udev, char const* devpath, char const* subsystem, char const* action )
udev_make_node ( struct udevice* udev, char const* file, dev_t devt, mode_t mode, uid_t uid, gid_t gid )
udev_process_event ( struct udev_rules* rules, struct udevice* udev )
udev_remove_device ( struct udevice* udev )

udev_rules.h, libudev.so
udev_rules_close ( struct udev_rules* rules )

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Problems with Data Types, High Severity (6)

	Change	Effect
1	Field bus_id has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.
2	Field devpath has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.
3	Field kernel_name has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.
4	Field kernel_number has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.
5	Field subsystem has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.
6	Field type has been removed from the middle position of this structural type.	1) Previous accesses of applications to the removed field will be incorrect. 2) Layout of structure fields has been changed and therefore fields at higher positions of the structure definition may be incorrectly accessed by applications.

udev.h
[+] struct udevice (6)

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Problems with Data Types, Medium Severity (3)

	Change	Effect
1	Field dev 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.
2	Field dev_local 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.
3	Field dev_parent 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.

udev.h
[+] struct udevice (3)

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Problems with Symbols, Medium Severity (3)

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

	Change	Effect
1	3rd parameter class_dev has been removed from the calling stack.	This parameter will be ignored by the function.
2	4th parameter sysfs_dev has been removed from the calling stack.	This parameter will be ignored by the function.

udev_rules.h, libudev.so
[+] udev_rules_get_name ( struct udev_rules* rules, struct udevice* udev, struct sysfs_class_device* class_dev ) (1)
[+] udev_rules_get_run ( struct udev_rules* rules, struct udevice* udev, struct sysfs_class_device* class_dev, struct sysfs_device* sysfs_dev ) (2)

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Problems with Data Types, Low Severity (1)

	Change	Effect
1	Size of this type has been changed from 1804 bytes to 1820 bytes.	The fields or parameters of such data type may be incorrectly initialized or accessed by old client applications.

udev.h
[+] struct udevice (1)

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Problems with Symbols, Low Severity (4)

	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 char*.	Replacement of return 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 char*.	Replacement of return type may indicate a change in its semantic meaning.

udev_utils.h, libudev.so
[+] name_list_add ( struct list_head* name_list, char const* name, int sort ) (2)
[+] name_list_key_add ( struct list_head* name_list, char const* key, char const* value ) (2)

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Problems with Constants, Low Severity (15)

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

	Change	Effect
1	The constant SYSFS_BUS_ID_SIZE with value 32 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

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

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

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

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

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

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

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

	Change	Effect
1	The constant SYSFS_NAME_LEN with value 64 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

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

	Change	Effect
1	The constant SYSFS_PATH_MAX with value 256 has been removed.	The value of this constant may no longer be properly handled by new-version library functions.

	Change	Effect
1	The constant SYSFS_UNKNOWN with value "unknown" 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 UEVENT_BUFFER_SIZE has been changed from 1024 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 UEVENT_NUM_ENVP has been changed from 32 to 64.	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.

libsysfs.h
[+] SYSFS_BLOCK_NAME
[+] SYSFS_BUS_ID_SIZE
[+] SYSFS_BUS_NAME
[+] SYSFS_CLASS_NAME
[+] SYSFS_DEVICES_NAME
[+] SYSFS_DRIVERS_NAME
[+] SYSFS_FSTYPE_NAME
[+] SYSFS_MODULE_NAME
[+] SYSFS_NAME_ATTRIBUTE
[+] SYSFS_NAME_LEN
[+] SYSFS_PATH_ENV
[+] SYSFS_PATH_MAX
[+] SYSFS_UNKNOWN

udevd.h
[+] UEVENT_BUFFER_SIZE
[+] UEVENT_NUM_ENVP

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Other Changes in Constants (1)

	Change	Effect
1	The constant EVENT_SEQNUM with value ".udev/uevent_seqnum" has been added.	No effect.

udevd.h
[+] EVENT_SEQNUM

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Header Files (12)

dlist.h
libsysfs.h
list.h
logging.h
sysfs.h
udev.h
udev_libc_wrapper.h
udev_rules.h
udev_selinux.h
udev_utils.h
udev_version.h
udevd.h

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Shared Libraries (1)

libudev.so

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