search for: dw_tag_call_sit

...;< *ptr; return *ptr + 5; } int main(int argc, char** argv){ int a = 4; int* ptr_a = &a; int b = func(ptr_a); return 0; } commandline used -- bash$ clang++ -Xclang -femit-debug-entry-values -O2 -ggdb test.cpp For this case-- these Tags are not emitted DW_TAG_call_site, DW_TAG_call_site_paramter .. only DW_AT_GNU_all_call_sites attribute is present. + @Djorde DW_TAG_call_site are supported using late MIR approach, are the new Call Site related development will be supported via MIR. or their will be a frontend level debug metadata support will be added. Thanks!...

..., > > Support for call-site related DWARF 5 tag/attributes is implemented very late, in the LLVM middle-end. > Please note that there is also the IR-level flag (DIFlagAllCallsDescribed) that lowers to > the DW_AT_call_all_calls. > > There is also support for call-site-parameter (DW_TAG_call_site_parameter) and the debug entry values > (DW_OP_entry_value) related DWARF 5 symbols, but it is restricted by the CC1 option ‘-femit-debug-entry-values’, > since the LLDB is still missing support for that. Not for too long ;) See https://reviews.llvm.org/D67410 <https://reviews.llvm.org/...

Hello All, I was working on some dwarf-5 features and debugging optimized code support in clang and llvm. Noticed that, DW_TAG_call_site is supported in llvm middle-end. but clang is not emitting these. I was hoping, if someone could provide current status of these features and current status of dwarf-5 features in clang and llvm. That will be immensely helpful. Thanks! Sourabh. -------------- next part -------------- An HTML att...

Hey folks, I'm trying to wrap my head around the implementation, purpose, and costs involved in both the GCC-extension v4 and standard v5 DW_TAG_call_site, call site parameters, addresses, etc. So picking up from some of the design discussion in https://reviews.llvm.org/D72489: Me (Blaikie): I'm not sure why AT_call_return_pc would be needed at a tail call site as the debugger must ignore it. As for emitting DW_AT_low_pc under gdb tuning, I th...

...n caller (call site) as well as on callee side; and the intention is to improve debugging user experience by using the functionality (especially in “optimized” code by turning “<optimized_out>” values into real values). The call site information includes info about call itself (described with DW_TAG_call_site) with corresponding children representing function arguments at the call site (described with DW_TAG_call_site_params). The most interesting DWARF attribute for us (here) is DW_AT_call_value which contains a DWARF expression which represents a value of the parameter at the time of the call. For th...

...as well as on callee side; and the intention > is to improve debugging user experience by using the functionality (especially > in “optimized” code by turning “<optimized_out>” values into real values). The > call site information includes info about call itself (described with > DW_TAG_call_site) with corresponding children representing function arguments > at the call site (described with DW_TAG_call_site_params). The most interesting > DWARF attribute for us (here) is DW_AT_call_value which contains a DWARF > expression which represents a value of the parameter at the time of t...

...unity 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=AttachFile&do=view&target=jelinek.pdf [4] FOSDEM talk http://bofh.nikhef.nl/events/FOSDEM/2019/K.4.201/llvm_d...

...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/summit2010?action=AttachFile&do=view&target=jelinek.pdf > [4] FOSDEM talk http://bofh.nikhef.nl/events/FOSDEM/2...

> Subject: Re: [llvm-dev] Range lists, zero-length functions, linker gc > > On 2020-05-28, David Blaikie wrote: > >On Thu, May 28, 2020 at 2:52 PM Robinson, Paul <paul.robinson at sony.com> > >wrote: > > > >> As has been mentioned elsewhere, Sony generally fixes up references > from > >> debug info to stripped functions (of any length) using

...> > > 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=AttachFile&do=view&target=jelin > ek.pdf > > [4] FOS...