c2512106f8
Adds a new parameter -max-results to -symbol-info-functions, -symbol-info-variables, -symbol-info-types, and -symbol-info-modules. This parameter limits the number of results returned. This change still leaves -symbol-info-module-functions and -symbol-info-module-variables always returning all results, fixing these commands is slightly harder. There's currently no mechanism for the user of these commands to know if the result list has been truncated if you get back the maximum number of results, so if there are exactly 10 functions and you call '-symbol-info-functions --max-results 10' the reply would appear no different than if you had 20 functions and called with a max of 10. Right now, if you get back the maximum then you should assume that there might be more results available. One other thing to note is that the global_symbol_searcher::search by default returns SIZE_MAX results, there's no longer a mechanism to return an unlimited number of results, though hopefully this will not be a huge issue. gdb/ChangeLog: * mi/mi-symbol-cmds.c (mi_symbol_info): Take extra parameter, and add it into the search spec. (parse_max_results_option): New function. (mi_info_functions_or_variables): Parse -max-results flag and pass it to mi_symbol_info. (mi_cmd_symbol_info_modules): Likewise. (mi_cmd_symbol_info_types): Likewise. * symtab.c (global_symbol_searcher::add_matching_symbols): Change return type to bool, change result container into a set, and don't add new results if we have enough already. (global_symbol_searcher::add_matching_msymbols): Change return type to bool, and don't add new results if we have enough already. (sort_search_symbols_remove_dups): Delete. (global_symbol_searcher::search): Early exit from search loop when we have enough results. Use a std::set to collect the results from calling add_matching_symbols. * symtab.h (global_symbol_searcher) <set_max_seach_results>: New member function. (global_symbol_searcher) <m_max_search_results>: New member variable. (global_symbol_searcher) <add_matching_symbols>: Update header comment and change return type to bool. (global_symbol_searcher) <add_matching_msymbols>: Update header comment and change return type to bool. gdb/doc/ChangeLog: * doc/gdb.texinfo (GDB/MI Symbol Query): Add documentation of -max-results to some -symbol-info-* commands. gdb/testsuite/ChangeLog: * gdb.mi/mi-sym-info.exp: Add tests for -max-results parameter. Change-Id: I90a28feb55b388fb46461a096c5db08b6b0bd427 |
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