Hi Mark. I will do that, and try to submit a code to that. valgrind looks to be used pretty outdated libiberify code. It does have some support for the D, but it doesn't support latest ABIs, and doesn't detect it automatically.
As you already know, the valgrind has autodetection for rust, and same can be done for dlang, to make user experience easier. I will talk to valgrind about it. Thanks for maintaining valgrind packages in Debian! Cheers. On Fri, 15 May 2020 at 12:32, Mark Wielaard <m...@klomp.org> wrote: > > Hi, > > On Fri, 2020-05-15 at 02:28 +0000, Witold Baryluk wrote: > > Package: valgrind > > Version: 1:3.15.0-1 > > Severity: normal > > > > It looks like valgrind doesn't support D programming language symbol > > mangling (as emitted by DMD, GDC or LDC2 compilers); > > > > ==29535== valgrind: Unrecognised instruction at address 0x1b38db. > > ==29535== at 0x1B38DB: _D3rcu__T3RCUTSQn1AZQl6updateMFNbPQuZv > > (rcu.d:390) > > ==29535== by 0x1B2F6F: _D3rcu6writerFZv (rcu.d:96) > > ==29535== by 0x1B3230: _D3rcu4mainFAAyaZ9__lambda3FZv (rcu.d:600) > > ==29535== by 0x1E52B7: _D4core6thread8osthread6Thread3runMFZv (in > > /home/user/vps1/home/baryluk/Projekty/rcu.d/rcu) > > ==29535== by 0x1FE929: thread_entryPoint (in > > /home/user/vps1/home/baryluk/Projekty/rcu.d/rcu) > > ==29535== by 0x487DF26: start_thread (pthread_create.c:479) > > ==29535== by 0x49AD31E: clone (clone.S:95) > > > > That is a bit unfortunate. Most of this compilers allow to emulate > > "C" > > mangling in debug symbols (ldc2 -gc), but it interferes with other > > things, and is not supported everywhere. > > > > gdb and objdump do demangle D symbols very well. I hope valgrind > > could pick it up too? > > Best to file this upstream. > Yes, it shouldn't be too hard to support. > valgrind uses the same demangler as gdb and binutils. > So since this works: > > $ echo _D4core6thread8osthread6Thread3runMFZv | c++filt -s dlang > core.thread.osthread.Thread.run() > > valgrind just needs to know when to switch to "dlang". See > coregrind/m_demangle/demangle.c where it already checks for "rust" > demangling. > > Cheers, > > Mark
