mirror of
git://sourceware.org/git/lvm2.git
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82a27a85b5
Fix the version export macros to make it possible to export two
different DM_* versions of a symbol: currently it is only possible for a
DM_* symbol to override a symbol in Base. Attempting to export two
symbols at different DM_* version levels (e.g. DM_1_02_104 and
DM_1_02_106) leads to a linker error due to a duplicate symbol
definition.
This is because the DM_EXPORTED_SYMBOL macro makes each exported symbol
the default (@@VERSION):
__asm__(".symver " #func "_v" #ver ", " #func "@@DM_" #ver )
Fix the macro to use a single '@' for a symbols exported in multiple
versions and rename the macros to DM_EXPORT_*:
DM_EXPORT_SYMBOL(func,ver)
DM_EXPORT_SYMBOL_BASE(func,ver)
For functions that have multiple implementations these macros control
symbol export and versioning.
Function definitions that exist in only one version never need to use
these macros.
Backwards compatible implementations must include a version tag of
the form "_v1_02_104" as a suffix to the function name and use the
macro DM_EXPORT_SYMBOL to export the function and bind it to the
specified version string.
Since versioning is only available when compiling with GCC the entire
compatibility version should be enclosed in '#if defined(__GNUC__)',
for example:
int dm_foo(int bar)
{
return bar;
}
#if defined(__GNUC__)
// Backward compatible dm_foo() version 1.02.104
int dm_foo_v1_02_104(void);
int dm_foo_v1_02_104(void)
{
return 0;
}
DM_EXPORT_SYMBOL(dm_foo,1_02_104)
#endif
A prototype for the compatibility version is required as these
functions must not be declared static.
The DM_EXPORT_SYMBOL_BASE macro is only used to export the base
versions of library symbols prior to the introduction of symbol
versioning: it must never be used for new symbols.
287 lines
5.9 KiB
Plaintext
287 lines
5.9 KiB
Plaintext
dm_asprintf
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dm_basename
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dm_bit_and
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dm_bit_get_first
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dm_bit_get_next
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dm_bitset_create
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dm_bitset_destroy
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dm_bitset_equal
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dm_bit_union
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dm_bounds_check_debug
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dm_build_dm_name
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dm_build_dm_uuid
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dm_config_clone_node
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dm_config_clone_node_with_mem
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dm_config_create
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dm_config_create_node
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dm_config_create_value
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dm_config_destroy
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dm_config_find_bool
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dm_config_find_float
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dm_config_find_int
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dm_config_find_int64
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dm_config_find_node
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dm_config_find_str
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dm_config_find_str_allow_empty
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dm_config_flatten
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dm_config_from_string
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dm_config_get_custom
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dm_config_get_list
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dm_config_get_section
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dm_config_get_str
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dm_config_get_uint32
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dm_config_get_uint64
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dm_config_has_node
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dm_config_insert_cascaded_tree
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dm_config_maybe_section
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dm_config_memory
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dm_config_parent_name
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dm_config_parse
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dm_config_remove_cascaded_tree
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dm_config_remove_node
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dm_config_set_custom
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dm_config_tree_find_bool
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dm_config_tree_find_float
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dm_config_tree_find_int
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dm_config_tree_find_int64
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dm_config_tree_find_node
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dm_config_tree_find_str
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dm_config_tree_find_str_allow_empty
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dm_config_value_is_bool
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dm_config_write_node
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dm_config_write_node_out
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dm_config_write_one_node
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dm_config_write_one_node_out
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dm_cookie_supported
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dm_count_chars
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dm_create_dir
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dm_create_lockfile
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dm_daemon_is_running
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dm_device_get_name
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dm_device_has_holders
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dm_device_has_mounted_fs
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dm_dir
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dm_driver_version
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dm_dump_memory_debug
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dm_escaped_len
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dm_escape_double_quotes
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dm_fclose
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dm_format_dev
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dm_free_aux
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dm_get_library_version
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dm_get_name_mangling_mode
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dm_get_next_target
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dm_get_status_cache
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dm_get_status_raid
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dm_get_status_snapshot
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dm_get_status_thin
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dm_get_status_thin_pool
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dm_get_suspended_counter
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dm_hash_create
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dm_hash_destroy
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dm_hash_get_data
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dm_hash_get_first
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dm_hash_get_key
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dm_hash_get_next
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dm_hash_get_num_entries
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dm_hash_insert
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dm_hash_insert_binary
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dm_hash_iter
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dm_hash_lookup
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dm_hash_lookup_binary
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dm_hash_remove
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dm_hash_remove_binary
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dm_hash_wipe
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dm_is_dm_major
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dm_is_empty_dir
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dm_lib_exit
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dm_lib_init
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dm_lib_release
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dm_list_add
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dm_list_add_h
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dm_list_del
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dm_list_empty
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dm_list_end
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dm_list_first
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dm_list_init
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dm_list_last
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dm_list_move
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dm_list_next
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dm_list_prev
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dm_list_size
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dm_list_splice
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dm_list_start
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dm_log
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dm_log_init
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dm_log_init_verbose
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dm_log_is_non_default
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dm_log_with_errno
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dm_log_with_errno_init
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dm_make_percent
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dm_malloc_aux
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dm_malloc_aux_debug
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dm_mknodes
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dm_mountinfo_read
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dm_percent_to_float
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dm_pool_abandon_object
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dm_pool_alloc
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dm_pool_alloc_aligned
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dm_pool_begin_object
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dm_pool_create
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dm_pool_destroy
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dm_pool_empty
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dm_pool_end_object
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dm_pool_free
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dm_pool_grow_object
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dm_pool_lock
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dm_pool_locked
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dm_pool_strdup
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dm_pool_strndup
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dm_pool_unlock
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dm_pool_zalloc
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dm_prepare_selinux_context
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dm_realloc_aux
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dm_regex_create
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dm_regex_fingerprint
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dm_regex_match
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dm_report_compact_fields
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dm_report_field_int
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dm_report_field_int32
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dm_report_field_percent
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dm_report_field_set_value
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dm_report_field_string
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dm_report_field_string_list
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dm_report_field_string_list_unsorted
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dm_report_field_uint32
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dm_report_field_uint64
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dm_report_free
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dm_report_init
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dm_report_init_with_selection
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dm_report_object
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dm_report_object_is_selected
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dm_report_output
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dm_report_set_output_field_name_prefix
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dm_set_dev_dir
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dm_set_name_mangling_mode
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dm_set_selinux_context
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dm_set_sysfs_dir
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dm_set_uuid_prefix
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dm_snprintf
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dm_split_lvm_name
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dm_split_words
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dm_strdup_aux
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dm_strncpy
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dm_sysfs_dir
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dm_task_add_target
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dm_task_create
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dm_task_deferred_remove
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dm_task_destroy
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dm_task_enable_checks
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dm_task_get_deps
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dm_task_get_driver_version
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dm_task_get_info_with_deferred_remove
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dm_task_get_message_response
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dm_task_get_name
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dm_task_get_name_mangled
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dm_task_get_names
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dm_task_get_name_unmangled
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dm_task_get_read_ahead
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dm_task_get_uuid
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dm_task_get_uuid_mangled
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dm_task_get_uuid_unmangled
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dm_task_get_versions
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dm_task_no_flush
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dm_task_no_open_count
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dm_task_query_inactive_table
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dm_task_retry_remove
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dm_task_run
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dm_task_secure_data
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dm_task_set_add_node
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dm_task_set_cookie
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dm_task_set_event_nr
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dm_task_set_geometry
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dm_task_set_gid
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dm_task_set_major
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dm_task_set_major_minor
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dm_task_set_message
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dm_task_set_minor
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dm_task_set_mode
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dm_task_set_name
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dm_task_set_newname
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dm_task_set_newuuid
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dm_task_set_read_ahead
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dm_task_set_ro
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dm_task_set_sector
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dm_task_set_uid
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dm_task_set_uuid
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dm_task_skip_lockfs
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dm_task_suppress_identical_reload
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dm_task_update_nodes
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dm_tree_activate_children
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dm_tree_add_dev
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dm_tree_add_dev_with_udev_flags
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dm_tree_add_new_dev
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dm_tree_add_new_dev_with_udev_flags
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dm_tree_create
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dm_tree_deactivate_children
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dm_tree_find_node
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dm_tree_find_node_by_uuid
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dm_tree_free
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dm_tree_get_cookie
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dm_tree_children_use_uuid
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dm_tree_next_child
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dm_tree_node_add_cache_target
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dm_tree_node_add_crypt_target
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dm_tree_node_add_error_target
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dm_tree_node_add_linear_target
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dm_tree_node_add_mirror_target
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dm_tree_node_add_mirror_target_log
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dm_tree_node_add_null_area
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dm_tree_node_add_raid_target
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dm_tree_node_add_raid_target_with_params
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dm_tree_node_add_replicator_dev_target
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dm_tree_node_add_replicator_target
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dm_tree_node_add_snapshot_merge_target
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dm_tree_node_add_snapshot_origin_target
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dm_tree_node_add_snapshot_target
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dm_tree_node_add_striped_target
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dm_tree_node_add_target_area
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dm_tree_node_add_thin_pool_message
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dm_tree_node_add_thin_pool_target
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dm_tree_node_add_thin_target
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dm_tree_node_add_zero_target
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dm_tree_node_get_context
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dm_tree_node_get_info
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dm_tree_node_get_name
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dm_tree_node_get_uuid
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dm_tree_node_num_children
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dm_tree_node_set_callback
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dm_tree_node_set_presuspend_node
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dm_tree_node_set_read_ahead
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dm_tree_node_set_thin_external_origin
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dm_tree_node_set_thin_pool_discard
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dm_tree_node_set_thin_pool_error_if_no_space
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dm_tree_node_set_udev_flags
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dm_tree_node_size_changed
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dm_tree_preload_children
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dm_tree_retry_remove
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dm_tree_set_cookie
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dm_tree_set_optional_uuid_suffixes
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dm_tree_skip_lockfs
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dm_tree_suspend_children
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dm_tree_use_no_flush_suspend
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dm_udev_complete
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dm_udev_create_cookie
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dm_udev_get_checking
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dm_udev_get_sync_support
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dm_udev_set_checking
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dm_udev_set_sync_support
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dm_udev_wait
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dm_unescape_colons_and_at_signs
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dm_unescape_double_quotes
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dm_units_to_factor
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dm_uuid_prefix
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dm_vasprintf
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dm_zalloc_aux
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dm_zalloc_aux_debug
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