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include, libctf: header and soname changes for CTFv4

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These changes bump the current file format version to CTF_VERSION_4, and
introduce a new VERSION_5 identical with it to get the version integer and
the name identical again.  A great many changes are made to account for
the changes to handle CTFv4 (which is a BTF superset).

libctf will not compile after these changes, which is why it's been diked
out of the build system and forced-off until the series is complete.

Because all the CTF_K constants have changed values, this is necessarily an
ABI break: add a #define to make picking up this break at compile time
obvious.

Note that the ABI has broken by bumping the soname (deriving it now from
libctf/libtool-version) and folding all newer symbols in the symbol version
file into a new LIBCTF_2.0 version, which is now the only exported version.
This commit is contained in:
Nick Alcock
2025-04-24 13:20:53 +01:00
parent 13ce9e17b7
commit de5a31a8ca
6 changed files with 411 additions and 156 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
libctf/libctf.ver
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@@ -16,15 +16,18 @@
along with this program; see the file COPYING. If not see
<http://www.gnu.org/licenses/>. */
LIBCTF_1.0 {
LIBCTF_2.0 {
global:
/* In libctf and libctf-nobfd. */
ctf_dict_open;
ctf_dict_open_sections;
ctf_bufopen;
ctf_simple_open;
ctf_create;
ctf_close;
ctf_ref;
ctf_dict_close;
ctf_file_close;
ctf_cuname;
@@ -32,6 +35,7 @@ LIBCTF_1.0 {
ctf_parent_file;
ctf_parent_name;
ctf_parent_name_set;
ctf_parent_dict;
ctf_type_isparent;
ctf_type_ischild;
@@ -53,6 +57,11 @@ LIBCTF_1.0 {
ctf_lookup_by_name;
ctf_lookup_by_symbol;
ctf_symbol_next;
ctf_lookup_by_symbol_name;
ctf_arc_lookup_symbol;
ctf_arc_lookup_symbol_name;
ctf_lookup_variable;
ctf_type_resolve;
@@ -82,6 +91,9 @@ LIBCTF_1.0 {
ctf_label_topmost;
ctf_label_info;
ctf_lookup_enumerator;
ctf_lookup_enumerator_next;
ctf_arc_lookup_enumerator_next;
ctf_member_iter;
ctf_enum_iter;
@@ -114,6 +126,7 @@ LIBCTF_1.0 {
ctf_add_union;
ctf_add_struct_sized;
ctf_add_union_sized;
ctf_add_unknown;
ctf_add_volatile;
ctf_add_enumerator;
@@ -133,6 +146,10 @@ LIBCTF_1.0 {
ctf_gzwrite;
ctf_compress_write;
ctf_getdatasect;
ctf_getsymsect;
ctf_getstrsect;
ctf_symsect_endianness;
ctf_arc_symsect_endianness;
ctf_arc_write;
ctf_arc_write_fd;
@@ -145,6 +162,7 @@ LIBCTF_1.0 {
ctf_archive_next;
ctf_archive_raw_iter;
ctf_get_arc;
ctf_arc_flush_caches;
ctf_dump;
@@ -161,6 +179,13 @@ LIBCTF_1.0 {
ctf_link_shuffle_syms;
ctf_link_write;
ctf_link_add_linker_symbol;
ctf_add_objt_sym;
ctf_add_func_sym;
ctf_dict_set_flag;
ctf_dict_get_flag;
ctf_fdopen; /* libctf only. */
ctf_open; /* libctf only. */
ctf_arc_open; /* libctf only. */
@@ -169,41 +194,3 @@ LIBCTF_1.0 {
local:
*;
};
LIBCTF_1.1 {
global:
ctf_dict_open;
ctf_dict_open_sections;
ctf_dict_close;
ctf_parent_dict;
ctf_symbol_next;
ctf_add_objt_sym;
ctf_add_func_sym;
ctf_link_add_linker_symbol;
ctf_arc_lookup_symbol;
ctf_arc_flush_caches;
ctf_getsymsect;
ctf_getstrsect;
ctf_symsect_endianness;
ctf_arc_symsect_endianness;
} LIBCTF_1.0;
LIBCTF_1.2 {
global:
ctf_lookup_by_symbol_name;
ctf_arc_lookup_symbol_name;
ctf_add_unknown;
} LIBCTF_1.1;
LIBCTF_1.3 {
global:
ctf_lookup_enumerator;
ctf_lookup_enumerator_next;
ctf_arc_lookup_enumerator_next;
ctf_dict_set_flag;
ctf_dict_get_flag;
} LIBCTF_1.2;