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Hello all, There is one enhancement request open for dwarfv5, http://dwarfstd.org/ShowIssue.php?issue=191107.1 The request is for addition of dwarf expression operator to swap the top of the dwarf stack, the response seems positive but it may take some time till v6. I like to add that operator as vendor extension but I am not sure how to go about it for llvm/lldb. Currently I am using it...

...LLDB, though I guess the main question would be: what's the motivation? On Mon, Dec 2, 2019 at 3:14 AM Chirag Patel via llvm-dev <llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote: Hello all, There is one enhancement request open for dwarfv5, http://dwarfstd.org/ShowIssue.php?issue=191107.1 The request is for addition of dwarf expression operator to swap the top of the dwarf stack, the response seems positive but it may take some time till v6. I like to add that operator as vendor extension but I am not sure how to go about it for llvm/lldb. Currently I am using it...

...cess of porting this implementation on LLVM trunk. We are planning to share this set of patches with LLVM community and seek feedback in improving certain parts of our implementation. References [1]Jakub Jelínek and Roland McGrath. DWARF DW_OP_entry_value extension proposal. http://dwarfstd.org/ShowIssue.php? issue=100909.1. [2 Jakub Jelínek, Roland McGrath, Jan Kratochvíl, and Alexandre Oliva. DWARF DW_TAG_call_site extension proposal. http://dwarfstd.org/ ShowIssue.php?issue=100909.2 [3] J. Jelinek “Improving debug info for optimized away parameters” https://gcc.gnu.org/wiki/summit2010?action=A...

...back in improving certain parts of our implementation. Sounds great! thanks for sharing this, adrian Thanks, Ananth > > > References > [1]Jakub Jelínek and Roland McGrath. DWARF DW_OP_entry_value extension proposal. http://dwarfstd.org/ShowIssue.php? issue=100909.1. > [2 Jakub Jelínek, Roland McGrath, Jan Kratochvíl, and Alexandre Oliva. DWARF DW_TAG_call_site extension proposal. http://dwarfstd.org/ ShowIssue.php?issue=100909.2 > [3] J. Jelinek “Improving debug info for optimized away parameters” https://gcc.gnu.org/wiki/s...

...formats. It also would require     supporting DWARF6-suggested tombstone values(-1/-2). ====================================================================== Appendix D. Documentation.   - proposal for DWARF6 which suggested -1/-2 values for marking bad addresses     http://www.dwarfstd.org/ShowIssue.php?issue=200609.1   - dsymutil tool https://llvm.org/docs/CommandGuide/dsymutil.html.   - proposal "Remove obsolete debug info in lld." http://lists.llvm.org/pipermail/llvm-dev/2020-May/141468.html ====================================================================== Appendix E. Pos...

...F6-suggested tombstone values(-1/-2). > > ====================================================================== > > Appendix D. Documentation. > >    - proposal for DWARF6 which suggested -1/-2 values for marking bad > addresses > http://www.dwarfstd.org/ShowIssue.php?issue=200609.1 >    - dsymutil tool https://llvm.org/docs/CommandGuide/dsymutil.html. >    - proposal "Remove obsolete debug info in lld." > http://lists.llvm.org/pipermail/llvm-dev/2020-May/141468.html > > ===============================================...

...F6-suggested tombstone values(-1/-2). > > ====================================================================== > > Appendix D. Documentation. > >    - proposal for DWARF6 which suggested -1/-2 values for marking bad > addresses > http://www.dwarfstd.org/ShowIssue.php?issue=200609.1 >    - dsymutil tool https://llvm.org/docs/CommandGuide/dsymutil.html. >    - proposal "Remove obsolete debug info in lld." > http://lists.llvm.org/pipermail/llvm-dev/2020-May/141468.html > > ===============================================...

...================================================================= >> >> Appendix D. Documentation. >> >>    - proposal for DWARF6 which suggested -1/-2 values for >> marking bad >> addresses >> http://www.dwarfstd.org/ShowIssue.php?issue=200609.1 >>    - dsymutil tool >> https://llvm.org/docs/CommandGuide/dsymutil.html. >>    - proposal "Remove obsolete debug info in lld." >> http://lists.llvm.org/pipermail/llvm-dev/2020-May/141468.html >> >>...

...anks for sharing this, > adrian > > > Thanks, > Ananth > > > > > > > References > > [1]Jakub Jelínek and Roland McGrath. DWARF DW_OP_entry_value > extension proposal. http://dwarfstd.org/ShowIssue.php? issue=100909.1. > > [2 Jakub Jelínek, Roland McGrath, Jan Kratochvíl, and Alexandre > Oliva. DWARF DW_TAG_call_site extension proposal. http://dwarfstd.org/ > ShowIssue.php?issue=100909.2 > > [3] J. Jelinek “Improving debug info for optimized away pa...

...================= >>> >>> Appendix D. Documentation. >>> >>>    - proposal for DWARF6 which suggested -1/-2 values >>> for marking bad >>> addresses >>> http://www.dwarfstd.org/ShowIssue.php?issue=200609.1 >>>    - dsymutil tool >>> https://llvm.org/docs/CommandGuide/dsymutil.html. >>>    - proposal "Remove obsolete debug info in lld." >>> http://lists.llvm.org/pipermail/llvm-dev/2020-May/...

On Wed, Oct 9, 2019 at 11:59 AM Robinson, Paul <paul.robinson at sony.com> wrote: > Welcome Sourabh, > > > > There are many bits of DWARF-5 that haven’t been implemented. > Got a short list, by chance? > I know there is currently no big push within Sony to “fill in the > corners” for v5, as we have been more focused on quality of debug info for > optimized

...f3KBwAJ 9. Using COMDAT Sections to Reduce the Size of DWARF Debug Information     http://wiki.dwarfstd.org/index.php?title=COMDAT_Type_Sections 10. DWARF Extensions for Unwinding Across Merged Functions     http://wiki.dwarfstd.org/index.php?title=ICF 11. Type Unit Merge     http://dwarfstd.org/ShowIssue.php?issue=130526.1 12. DWARF Extensions for Separate Debug Information Files     https://gcc.gnu.org/wiki/DebugFission 13. dwz dwarf compressor     http://sourceware.org/git/dwz.git 14. DWARF5 standard     http://dwarfstd.org/Dwarf5Std.php =======================================================...

...gt; Appendix D. Documentation. >>>> >>>>    - proposal for DWARF6 which suggested -1/-2 >>>> values for marking bad >>>> addresses >>>> http://www.dwarfstd.org/ShowIssue.php?issue=200609.1 >>>>    - dsymutil tool >>>> https://llvm.org/docs/CommandGuide/dsymutil.html. >>>>    - proposal "Remove obsolete debug info in lld." >>>> http://lists.llvm....

...F6-suggested tombstone values(-1/-2). > > ====================================================================== > > Appendix D. Documentation. > >    - proposal for DWARF6 which suggested -1/-2 values for marking bad > addresses > http://www.dwarfstd.org/ShowIssue.php?issue=200609.1 >    - dsymutil tool https://llvm.org/docs/CommandGuide/dsymutil.html. >    - proposal "Remove obsolete debug info in lld." > http://lists.llvm.org/pipermail/llvm-dev/2020-May/141468.html > > ===============================================...

Hi, I would like to implement macro debug info support in LLVM. Below you will find 4 parts: 1. Background on what does it mean to debug macros. 2. A brief explanation on how to represent macro debug info in DWARF 4.0. 3. The suggested design. 4. A full example: Source -> AST -> LLVM IR -> DWARF. Feel free to skip first two parts if you think you know the background.

...Given what’s been found, I think Eric/Dave are correct, use bfd behavior by default with an option to do the new thing. The option can be coded to let Sony (SCE debugger tuning) have it on by default. Bringing it up on dwarf-discuss seems like a good idea too, you can refer to http://dwarfstd.org/ShowIssue.php?issue=200609.1 as part of that. --paulr From: Eric Christopher <echristo at gmail.com> Sent: Saturday, July 25, 2020 12:56 AM To: Fāng-ruì Sòng <maskray at google.com> Cc: Hans Wennborg <hans at chromium.org>; llvm-dev at lists.llvm.org; Alexey Lapshin <a.v.lapshin at mail...

...ic/Dave are correct, use bfd behavior by default with an option to do the new thing. The option can be coded to let Sony (SCE debugger tuning) have it on by default. >> >> >> >> Bringing it up on dwarf-discuss seems like a good idea too, you can refer to http://dwarfstd.org/ShowIssue.php?issue=200609.1 as part of that. > > > Thanks for the pointer! Posted here: http://lists.dwarfstd.org/pipermail/dwarf-discuss-dwarfstd.org/2020-July/004683.html > >> >> --paulr >> >> >> >> From: Eric Christopher <echristo at gmail.com> >&g...

...an option to do the new thing. The option can be >> coded to let Sony (SCE debugger tuning) have it on by default. >> >> >> >> >> >> >> >> Bringing it up on dwarf-discuss seems like a good idea too, you can >> refer to http://dwarfstd.org/ShowIssue.php?issue=200609.1 as part of that. >> > >> > >> > Thanks for the pointer! Posted here: >> http://lists.dwarfstd.org/pipermail/dwarf-discuss-dwarfstd.org/2020-July/004683.html >> > >> >> >> >> --paulr >> >> >> >&...

...> >> coded to let Sony (SCE debugger tuning) have it on by default. >> >> >> >> >> >> >> >> >> >> >> >> Bringing it up on dwarf-discuss seems like a good idea too, you can >> >> refer to http://dwarfstd.org/ShowIssue.php?issue=200609.1 as part of that. >> >> > >> >> > >> >> > Thanks for the pointer! Posted here: >> >> http://lists.dwarfstd.org/pipermail/dwarf-discuss-dwarfstd.org/2020-July/004683.html >> >> > >> >> >> >...

...ng) have it on by default. > > >> >> >> > > >> >> >> > > >> >> >> > > >> >> >> Bringing it up on dwarf-discuss seems like a good idea too, you can > > >> >> refer to http://dwarfstd.org/ShowIssue.php?issue=200609.1 as part of that. > > >> >> > > > >> >> > > > >> >> > Thanks for the pointer! Posted here: > > >> >> http://lists.dwarfstd.org/pipermail/dwarf-discuss-dwarfstd.org/2020-July/004683.html > > >...