Hi, On 2019-05-24 11:34:58 -0400, Tom Lane wrote: > I wrote: > > Peter Eisentraut <peter.eisentr...@2ndquadrant.com> writes: > >> What do people think about adding something like this errbacktrace() > >> from Álvaro's patch to core PostgreSQL? > > > I think we did discuss it right after that, or somewhere nearby, and > > concluded that the output is so imprecise that it's not really going > > to be worth whatever portability issues we'd have to deal with. > > Hmm, after some digging in the archives, the closest thing I can find > is this thread: > > https://www.postgresql.org/message-id/flat/CAMsr%2BYGL%2ByfWE%3DJvbUbnpWtrRZNey7hJ07%2BzT4bYJdVp4Szdrg%40mail.gmail.com > > where we discussed using libunwind instead, but people didn't like > the extra dependency.
Hm, I didn't actually see that much concern about that. I still think we should just go for libunwind. At least on debian it's likely to already be installed: andres@alap4:~$ apt rdepends libunwind8 libunwind8 Reverse Depends: Depends: libunwind-dev (= 1.2.1-9) Depends: linux-perf-4.16 Depends: linux-perf-4.15 Depends: linux-perf-4.14 Depends: rspamd Depends: linux-perf-5.0 Depends: libjulia1 Depends: julia Depends: geary Depends: libunwind8-dbgsym (= 1.2.1-9) Depends: xwayland Depends: xvfb Depends: xserver-xorg-core Depends: xserver-xephyr Depends: xnest Depends: xdmx Depends: trafficserver Depends: tigervnc-standalone-server Depends: tarantool Depends: strace Depends: spring Depends: rspamd Depends: linux-perf-4.19 Depends: libunwind-setjmp0 Depends: libeina1a Depends: libjulia1 Depends: julia Depends: intel-gpu-tools Depends: libheaptrack Depends: libgoogle-perftools4 Depends: libgoogle-glog0v5 Depends: gdnsd Depends: libevas1-engines-x Depends: libevas1 In particular strace, xserver-xorg-core, perf are reasonably likely to already installed. It's also not a large library. I'd bet if we made it an optional build-time dependency it'd get included by just about every distro. Greetings, Andres Freund
