Re: getting source line numbers from printed exit backtrace

[Basile Starynkevitch]

On 5/26/23 11:11, Eli Zaretskii wrote:
> > Date: Fri, 26 May 2023 14:23:40 +0530 (IST)
> > From: Madhu <enometh@meer.net>
> >
> > When emacs (compiled with -g3 -O2) crashes, it prints out stuff
> > ```
> > Backtrace:
> > /14/build/emacs/build-gtk/src/emacs[0x574a3b]
> > /14/build/emacs/build-gtk/src/emacs[0x426475]
> > /14/build/emacs/build-gtk/src/emacs[0x426967]
> > /14/build/emacs/build-gtk/src/emacs[0x572fa8]
> > /14/build/emacs/build-gtk/src/emacs[0x573019]
> > /lib64/libc.so.6(+0x3d240)[0x7f78855c2240]
> > /usr/lib64/libgtk-3.so.0(gtk_widget_get_window+0x19)[0x7f7887b125b9]
> > ```
> >
> > Can I get the source information corresponding to these printed
> > frames?
> Yes, see the node "Crashing" in the Emacs manual.



BTW, on Linux systems, GNU emacs could use Ian Lance Taylor's 
libbacktrace library for that purpose. (readability of backtrace)

That library is included in recent GNU GCC compiler, and is downloadable 
from https://github.com/ianlancetaylor/libbacktrace

(and that library is also used in the RefPerSys open source inference 
engine on https://github.com/RefPerSys/RefPerSys described on 
http://refpersys.org/ for which contributors are welcome).


Regards.


--
Basile Starynkevitch                  <basile@starynkevitch.net>
(only mine opinions / les opinions sont miennes uniquement)
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web page: starynkevitch.net/Basile/