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Date: Mon, 10 May 2021 09:53:35 -0700 (PDT)
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Subject: Re: stacktrace gan on raspberry pi
From: Joakim Strandberg <joakimds@kth.se>
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Xref: reader02.eternal-september.org comp.lang.ada:61973
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m=C3=A5ndag 10 maj 2021 kl. 18:01:53 UTC+2 skrev bj=C3=B6rn lundin:
> Hi!=20
> I got a raspberry pi 4 - 8 Gb, with=20
> Ubuntu 20.04 LTS on.=20
>=20
> I use the gnat provided by apt -=20
>=20
>=20
> ubuntu@ubuntu:~/svn/wcs-std/target/message$ gnatls -v=20
>=20
> GNATLS 9.3.0=20
> Copyright (C) 1997-2019, Free Software Foundation, Inc.=20
>=20
> Source Search Path:=20
> <Current_Directory>=20
> /usr/lib/gcc/aarch64-linux-gnu/9/adainclude=20
>=20
>=20
> Object Search Path:=20
> <Current_Directory>=20
> /usr/lib/gcc/aarch64-linux-gnu/9/adalib=20
>=20
>=20
> Project Search Path:=20
> <Current_Directory>=20
> /home/ubuntu/svn/wcs-std/config/gpr=20
> /home/ubuntu/svn/wcs-std/config/gpr/unix=20
> /usr/aarch64-linux-gnu/lib/gnat=20
> /usr/aarch64-linux-gnu/share/gpr=20
> /usr/share/gpr=20
> /usr/lib/gnat=20
>=20
>=20
> I seem to get some info out on a crash=20
>=20
> Exception raised : GNU.DB.SQLCLI.INVALID_FUNCTION_SEQUENCE=20
>=20
> Message : [Proc=3DSQLFetch][Server=3D][State=3DHY010][unixODBC][Driver=20
> Manager]Function sequence error=20
> raised GNU.DB.SQLCLI.INVALID_FUNCTION_SEQUENCE :=20
> [Proc=3DSQLFetch][Server=3D][State=3DHY010][unixODBC][Driver Manager]Func=
tion=20
> sequence error=20
> Call stack traceback locations:=20
> 0xaaaab8fc2b84 0xaaaab8fc5924 0xaaaab900c364 0xaaaab90024dc=20
> 0xaaaab8fbab48 0xaaaab8fbe364 0xaaaab8fb9848 0xffffa687c08c 0xaaaab8fb989=
8=20
>=20
>=20
> but addr2line gives=20
>=20
> ubuntu@ubuntu:~/svn/wcs-std/target/message$ addr2line -e=20
> ./message_utility 0xaaaab8fc2b84 0xaaaab8fc5924 0xaaaab900c364=20
> 0xaaaab90024dc 0xaaaab8fbab48 0xaaaab8fbe364 0xaaaab8fb9848=20
> 0xffffa687c08c 0xaaaab8fb9898=20
> ??:0=20
> ??:0=20
> ??:0=20
> ??:0=20
> ??:0=20
> ??:0=20
> ??:0=20
> ??:0=20
> ??:0=20
>=20
>=20
> Is stacktracing not implemented (which i suspect it is not) or is there=
=20
> another tool to use? (like atos on macos)=20
>=20
>=20
> --=20
> Bj=C3=B6rn

Hi Bj=C3=B6rn,

According to what I've heard but not checked it myself, the Ada-runtime for=
 the GNAT FSF compiler is not compiled with symbol information and it is th=
erefore not possible to get stacktrace from exceptions that originate from =
inside the standard library. However, you should be able to see the stack-t=
race from your own code.

Best regards,
Joakim