[Bug c++/107513] [Feature Request] Implement __attribute__((__nodebug__))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107513 --- Comment #7 from Jonathan Wakely --- (In reply to Jonathan Wakely from comment #6) > The patch for PR 96780 added -ffold-simple-inlines which works for some > specific functions. This attribute would extend that to arbitrary functions. I discussed this with Jason and Patrick, and the -ffold-simple-inlines effects are not appropriate for implementing this attribute, because the attribute might get used on functions which cannot be trivially folded by the front end. It would need to be implemented differently, but probably wouldn't be difficult.
[Bug c++/107513] [Feature Request] Implement __attribute__((__nodebug__))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107513 Jonathan Wakely changed: What|Removed |Added Last reconfirmed||2023-10-31 Status|UNCONFIRMED |NEW See Also||https://gcc.gnu.org/bugzill ||a/show_bug.cgi?id=96780 Ever confirmed|0 |1 Severity|normal |enhancement --- Comment #6 from Jonathan Wakely --- The patch for PR 96780 added -ffold-simple-inlines which works for some specific functions. This attribute would extend that to arbitrary functions. Confirmed as a very useful extension.
[Bug c++/107513] [Feature Request] Implement __attribute__((__nodebug__))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107513 --- Comment #5 from Roy Jacobson --- I still think it might be good idea to introduce this for the sake of reducing debug symbols size. I'm less interested in improving debug experience in this case, but obviously any improvement to that is welcome as well.
[Bug c++/107513] [Feature Request] Implement __attribute__((__nodebug__))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107513 --- Comment #4 from Jonathan Wakely --- But what does DW_AT_artificial do? Does gdb just ignore it? I've never noticed it helping at all.
[Bug c++/107513] [Feature Request] Implement __attribute__((__nodebug__))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107513 --- Comment #3 from Andrew Pinski --- (In reply to Roy Jacobson from comment #2) > I might be using it wrong? But it doesn't seem to do anything: > https://godbolt.org/z/9bdKhz4E7 > > It would be nice to at least avoid having the function's name in the binary, > clang does it with nodebug. because it does something different really. It is not used to reduce debug info but rather to make the debugging experience better. It marks the inlined function with DW_AT_artificial. .byte 0x1 # DW_AT_decl_file (/app/example.cpp) .byte 0x2 # DW_AT_decl_line .long 0x35 # DW_AT_type .byte 0x3 # DW_AT_inline .byte 0x1 # DW_AT_artificial That is it is actually better than Clang's nodebug for debuggability reasons. In my view nodebug is a hack rather than actually use DW_AT_artificial correctly.
[Bug c++/107513] [Feature Request] Implement __attribute__((__nodebug__))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107513 --- Comment #2 from Roy Jacobson --- I might be using it wrong? But it doesn't seem to do anything: https://godbolt.org/z/9bdKhz4E7 It would be nice to at least avoid having the function's name in the binary, clang does it with nodebug.
[Bug c++/107513] [Feature Request] Implement __attribute__((__nodebug__))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107513 --- Comment #1 from Andrew Pinski --- GCC's artificial attribute should be similar for functions: https://gcc.gnu.org/onlinedocs/gcc-12.2.0/gcc/Common-Function-Attributes.html#index-artificial-function-attribute Which was added in GCC 4.3.0 by r0-83503-gd752cfdb114944. types GCC does not have one. I suspect for your usage artificial is enough.
