Snippets for percona-xtrabackup 8.4.0-7 from Nix x86_64-linux

Sourced from https://hydra.nixos.org/log/l2bb2l1yms3v0hi96nqchip6lizzviwy-percona-xtrabackup-8.4.0-7.drv.

• /build/source/libs/mysql/binlog/event/rows_event.cpp:558:31: warning: '*(mysql::binlog::event::Rows_event*)<unknown>.mysql::binlog::event::Rows_event::m_type' may be used uninitialized [-Wmaybe-uninitialized]
    558 |   this->header()->type_code = m_type;
        |                               ^~~~~~
  

• /build/source/libs/mysql/binlog/event/rows_event.cpp:567:31: warning: '*(mysql::binlog::event::Rows_event*)<unknown>.mysql::binlog::event::Rows_event::m_type' may be used uninitialized [-Wmaybe-uninitialized]
    567 |   this->header()->type_code = m_type;
        |                               ^~~~~~
  

• /build/source/libs/mysql/binlog/event/rows_event.cpp:576:31: warning: '*(mysql::binlog::event::Rows_event*)<unknown>.mysql::binlog::event::Rows_event::m_type' may be used uninitialized [-Wmaybe-uninitialized]
    576 |   this->header()->type_code = m_type;
        |                               ^~~~~~
  

• /build/source/storage/innobase/xtrabackup/src/datasink.h:79:16: warning: anonymous non-C-compatible type given name for linkage purposes by 'typedef' declaration [-Wnon-c-typedef-for-linkage]
     79 | typedef struct {
        |                ^
        |                ds_file_t
  

• /build/source/storage/federated/ha_federated.cc:1272:8: warning: variable 'remainder' set but not used [-Wunused-but-set-variable=]
   1272 |   uint remainder, length;
        |        ^~~~~~~~~
  

• /build/source/storage/myisam/rt_index.cc:688:9: warning: variable 'i' set but not used [-Wunused-but-set-variable=]
    688 |   ulong i;
        |         ^
  

• /build/source/storage/myisam/sp_key.cc:57:8: warning: variable 'i' set but not used [-Wunused-but-set-variable=]
     57 |   uint i;
        |        ^
  

• /build/source/sql/server_component/log_builtins.cc:1394:41: warning: '%02u' directive output may be truncated writing between 2 and 10 bytes into a region of size 7 [-Wformat-truncation=]
   1394 |     snprintf(tzinfo, sizeof(tzinfo), "%c%02u:%02u", dir,
        |                                         ^~~~
  

• /build/source/sql/sql_plist.h:92:21: warning: array subscript 0 is outside array bounds of 'MDL_request* [0]' [-Warray-bounds=]
     92 |     *B::next_ptr(a) = m_first;
        |     ~~~~~~~~~~~~~~~~^~~~~~~~~
  

• /build/source/sql/sql_plist.h:98:21: warning: array subscript 0 is outside array bounds of 'MDL_request** [0]' [-Warray-bounds=]
     98 |     *B::prev_ptr(a) = &m_first;
        |     ~~~~~~~~~~~~~~~~^~~~~~~~~~
  

• /build/source/build/sql/sql_hints.yy.cc:73:25: warning: variable 'my_hint_parser_nerrs' set but not used [-Wunused-but-set-variable=]
     73 | #define yynerrs         my_hint_parser_nerrs
        |                         ^~~~~~~~~~~~~~~~~~~~
  

• /build/source/build/sql/sql_yacc.cc:74:25: warning: variable 'my_sql_parser_nerrs' set but not used [-Wunused-but-set-variable=]
     74 | #define yynerrs         my_sql_parser_nerrs
        |                         ^~~~~~~~~~~~~~~~~~~
  

• /build/source/sql/sql_executor.cc:3455:13: warning: variable 'i' set but not used [-Wunused-but-set-variable=]
   3455 |   for (uint i = 0; tab != tab_end; tab++, i++) {
        |             ^
  

• /build/source/sql/sql_partition.cc:3678:11: warning: variable 'part_id' set but not used [-Wunused-but-set-variable=]
   3678 |   uint i, part_id;
        |           ^~~~~~~
  

• /build/source/sql/sql_plugin.cc:3219:7: warning: variable 'index' set but not used [-Wunused-but-set-variable=]
   3219 |   int index = 0, offset = 0;
        |       ^~~~~
  

• /build/source/sql/sql_resolver.cc:5457:14: warning: variable 'i' set but not used [-Wunused-but-set-variable=]
   5457 |     for (int i = 0; it_outer != sj_outer_exprs.end();
        |              ^
  

• /build/source/sql/table.cc:4337:8: warning: variable 'i' set but not used [-Wunused-but-set-variable=]
   4337 |   uint i = 0;
        |        ^
  

• /build/source/storage/innobase/include/ut0dbg.h:95:17: warning: '*(unsigned int*)(&fil_page_prev[0])' may be used uninitialized [-Wmaybe-uninitialized]
     95 |     if (unlikely(false == (bool)(EXPR))) {                \
        |         ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
  

• /build/source/storage/innobase/handler/handler0alter.cc:6099:9: warning: variable 'i' set but not used [-Wunused-but-set-variable=]
   6099 |   ulint i = 0;
        |         ^
  

• /build/source/storage/innobase/lock/lock0lock.cc:752:9: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct ib_lock_t'; use assignment instead [-Wclass-memaccess]
    752 |   memset(&lock[1], 0, n_bytes);
        |   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~
  

• /build/source/storage/innobase/lock/lock0lock.cc:1211:11: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct ib_lock_t'; use assignment instead [-Wclass-memaccess]
   1211 |     memset(&lock[1], 0x0, 1);
        |     ~~~~~~^~~~~~~~~~~~~~~~~~
  

• /build/source/storage/innobase/lock/lock0lock.cc:1217:11: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct ib_lock_t'; use assignment instead [-Wclass-memaccess]
   1217 |     memset(&lock[1], 0x0, size);
        |     ~~~~~~^~~~~~~~~~~~~~~~~~~~~
  

• /build/source/storage/innobase/xtrabackup/src/redo_log.cc:46:37: warning: extra ';' outside of a function [-Wextra-semi]
     46 | IF_DEBUG(bool force_reopen = false;);
        |                                     ^
        |                                     -