[PATCH v2] libstdc++: Improve ostream output for std::stacktrace

[Jonathan Wakely]

On Fri, 17 Oct 2025 at 08:06, Florian Weimer wrote:
>
> * Jonathan Wakely:
>
> > With this change locations that don't have a source file look like this:
> >
> >   18# __libc_start_call_main at [0x7fd6568f6574]
> >   19# __libc_start_main@GLIBC_2.2.5 at [0x7fd6568f6627]
> >   20# _start at [0x4006a4]
>
> Note that DSO name plus offset would be significantly more useful than
> just the address, due to ASLR.

I think that's the topic of
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110196 (although the
report seems to switch topic halfway through).

I don't know how to get that info from libbacktrace, but the bug above
suggests using dladdr1 for it (I think dladdr would work too, and is
more portable).