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authorDoug Evans <xdje42@gmail.com>2015-01-11 15:16:26 -0800
committerDoug Evans <xdje42@gmail.com>2015-01-11 15:16:26 -0800
commit6a3ca067521821b6c2ad9a836104d11e6dd760cb (patch)
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parent439250fbacfc212a5959b4b5a53ecfee91dfb866 (diff)
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Temporarily revert symbol lookup cache.
clear_symtab_users calls breakpoint_re_set before observer_notify_new_objfile(NULL), and thus symbol lookup done during breakpoint_re_set will see a stale cache. Presumably we just need to move the call to observer_notify_new_objfile(NULL) to before breakpoint_re_set, but need to check for other such issues, and 7.9 is scheduled to branch tomorrow. Reverts commits: b2fb95e006c29e2cbe4b30523879fe3640f906ad 400678a494713abf8f7ea2367f213109a2c4b886 d98b9ccbccf36563dad92f6093a93655b38bc51b 77087adf50cedf78cc216ac6eb3b2863839d713c gdb/ChangeLog: * symtab.c (eq_symbol_entry): Use SYMBOL_SEARCH_NAME and symbol_matches_domain for symbol comparisons. * symtab.c (symbol_cache_mark_found): Improve function comment. Rename parameter objfile to objfile_context. (symbol_cache_mark_not_found): Improve function comment. Add symbol lookup cache. * NEWS: Document new options and commands. * symtab.c (symbol_cache_key): New static global. (DEFAULT_SYMBOL_CACHE_SIZE, MAX_SYMBOL_CACHE_SIZE): New macros. (SYMBOL_LOOKUP_FAILED): New macro. (symbol_cache_slot_state): New enum. (block_symbol_cache): New struct. (symbol_cache): New struct. (new_symbol_cache_size, symbol_cache_size): New static globals. (hash_symbol_entry, eq_symbol_entry): New functions. (symbol_cache_byte_size, resize_symbol_cache): New functions. (make_symbol_cache, free_symbol_cache): New functions. (get_symbol_cache, symbol_cache_cleanup): New function. (set_symbol_cache_size, set_symbol_cache_size_handler): New functions. (symbol_cache_lookup, symbol_cache_clear_slot): New function. (symbol_cache_mark_found, symbol_cache_mark_not_found): New functions. (symbol_cache_flush, symbol_cache_dump): New functions. (maintenance_print_symbol_cache): New function. (maintenance_flush_symbol_cache): New function. (symbol_cache_stats): New function. (maintenance_print_symbol_cache_statistics): New function. (symtab_new_objfile_observer): New function. (symtab_free_objfile_observer): New function. (lookup_static_symbol, lookup_global_symbol): Use symbol cache. (_initialize_symtab): Init symbol_cache_key. New parameter maint symbol-cache-size. New maint commands print symbol-cache, print symbol-cache-statistics, flush-symbol-cache. Install new_objfile, free_objfile observers. gdb/doc/ChangeLog: * gdb.texinfo (Symbols): Document new commands "maint print symbol-cache", "maint print symbol-cache-statistics", "maint flush-symbol-cache". Document new option "maint set symbol-cache-size".
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