search for: __use_isoc95

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2017 Nov 27
2
[LLD] Slow callstacks in gdb
Is the program being built by gcc or clang? Cheers, Rafael Rafael Avila de Espindola <rafael.espindola at gmail.com> writes: > Martin Richtarsky via llvm-dev <llvm-dev at lists.llvm.org> writes: > >> Hi, >> >> for programs linked with lld it's substantially slower to get callstacks >> in gdb, in comparison to gold-linked programs. Two measurements:
2017 Nov 28
2
[LLD] Slow callstacks in gdb
...subprogram DIE at 52844042... > cannot get low and high bounds for subprogram DIE at 52844092... > const value length mismatch for 'std::ios_constants::boolalpha', got 4, > expected 0 > debug info gives command-line macro definition with non-zero line 13: __MACRO > macro '__USE_ISOC95' is #undefined twice > macro `__STDC_LIMIT_MACROS' redefined at... > Member function "~basic_istream" (offset 28792309) is virtual but the > vtable offset is not specified... > > > > Maybe gdb needs to fall back to slower line number resolution because e.g. &g...