Carlo Kok via llvm-dev
2020-Jan-07 10:40 UTC
[llvm-dev] base address in llvm location tables in dwarf 4
Since fairly recently, llvm started emitting location tables with a base address
(0xffffffff + base address) in the location tables. Even for Dwarf 4:
( !{i32 2, !"Dwarf Version", i32 4})
Now I'm not entirely sure if this is supported by V4, but Apple DSymUtil
doesn't support this currently. Is there any non code way to make it not
emit these?
David Blaikie via llvm-dev
2020-Jan-07 18:43 UTC
[llvm-dev] base address in llvm location tables in dwarf 4
On Tue, Jan 7, 2020 at 2:41 AM Carlo Kok via llvm-dev < llvm-dev at lists.llvm.org> wrote:> Since fairly recently, llvm started emitting location tables with a base > address (0xffffffff + base address) in the location tables. Even for Dwarf > 4: > ( !{i32 2, !"Dwarf Version", i32 4})Now I'm not entirely sure if this is supported by V4, Yep, base address selection entries in location lists are a feature of DWARF4 (& DWARF3 for that matter) - so this is a conforming change. (you can check DWARF specs here: http://dwarfstd.org/Download.php )> but Apple DSymUtil doesn't support this currently. Is there any non code > way to make it not emit these? >Nope - there's no flags, etc, for this feature. dsymutil built from LLVM does support this feature, though - so you can build & use the latest dsymutil to go with your clang/llvm compilers.> _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20200107/f2a4e999/attachment.html>