Re: [Dwarf-discuss] Question on Clang 18.1.8 and DW_IDX_parent

> Maybe this is something we could submit for standardization? Definitely. --paulr On Wed, Sep 4, 2024 at 8:49 AM Felipe de Azevedo Piovezan via Dwarf-discuss wrote: > David has pretty much summed it up, but to restate: > > When we implemented this, we had to be able to distinguish the two cas

Re: [Dwarf-discuss] Question on Clang 18.1.8 and DW_IDX_parent

David has pretty much summed it up, but to restate: When we implemented this, we had to be able to distinguish the two cases below: 1. there are no IDX_parent in an accelerator table because the producer did not generate them. 2. there are no IDX_parent in an accelerator table because the parent

Re: [Dwarf-discuss] Question on Clang 18.1.8 and DW_IDX_parent

CC'ing Felipe Piovezan, who implement this feature, in case he wants to fill in more details. -- adrian > On Sep 3, 2024, at 10:06 AM, David Blaikie via Dwarf-discuss > wrote: > > Some context: > https://discourse.llvm.org/t/rfc-improve-dwarf-5-debug-names-type-lookup-parsing-speed/74151/44 >

Re: [Dwarf-discuss] Question on Clang 18.1.8 and DW_IDX_parent

On 9/3/24 10:06, David Blaikie via Dwarf-discuss wrote: Some context: https://discourse.llvm.org/t/rfc-improve-dwarf-5-debug-names-type-lookup-parsing-speed/74151/44 https://github.com/llvm/llvm-pr

Re: [Dwarf-discuss] Question on Clang 18.1.8 and DW_IDX_parent

Some context: https://discourse.llvm.org/t/rfc-improve-dwarf-5-debug-names-type-lookup-parsing-speed/74151/44 https://github.com/llvm/llvm-project/pull/77457 Essentially clang/llvm produces DW_IDX_parent with DW_FORM_flag_present when the entry has a parent, but that parent isn't indexed (I think

[Dwarf-discuss] Question on Clang 18.1.8 and DW_IDX_parent

Dwarf5. The Name Table .debug_names Background: 6.1.1.2, page 141 Parent debugging information entry, a reference to the index entry for the parent. This is represented as the offset of the entry relative to the start of the entry pool. Table 7.232 Name index attribute encodings DW_IDX_par