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From: "jeff at jkent dot net" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug breakpoints/26019] New: FreeRTOS task breakpoint causes core dump
Date: Thu, 21 May 2020 03:08:59 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D26019

            Bug ID: 26019
           Summary: FreeRTOS task breakpoint causes core dump
           Product: gdb
           Version: 9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: breakpoints
          Assignee: unassigned at sourceware dot org
          Reporter: jeff at jkent dot net
  Target Milestone: ---

Created attachment 12559
  --> https://sourceware.org/bugzilla/attachment.cgi?id=3D12559&action=3Ded=
it
Core dump from GDB 9.1

While debugging FreeRTOS on an ARM926EJ-S platform. I ran across a repeatab=
le
GDB crash.  It happens with two different toolchains:

GNU gdb (GNU Tools for Arm Embedded Processors 9-2019-q4-major)
8.3.0.20190709-git
GNU gdb (crosstool-NG 1.24.0.105_5659366) 9.1

I am using Visual Studio Code as a frontend for GDB.  I am also using
JLinkGDBServer.  To rule out that it is a GDB server issue, I also tried us=
ing
OpenOCD.  The crash still occurred.

To reproducing the problem is an issue, because it requires specific hardwa=
re.=20
If needed I can provide GDB server and target reset access by appointment. =
The
source of the project can be found at
https://github.com/jkent/pollux-baremetal/tree/gdb-bug .

  I think the next task would be to build GDB with debug symbols so the core
dump can provide a useful backtrace.  I do not know how to do this -- is th=
ere
a ./Configure option that can be passed to enable debugging?  This would be=
 the
easiest route, to build a new toolchain with crosstool-ng.  Attached is the
core dump.

--=20
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