GNU Arm Embedded Toolchain

GDB crash during ARM context switch

Bug #1789187 reported by Kochise on 2018-08-27

This bug affects 2 people

Affects		Status	Importance	Assigned to	Milestone
	GNU Arm Embedded Toolchain	New	Undecided	Unassigned

Bug Description

STM32L476, Cortex-M4 + FPU
Visual Studio 2017 15.8.1 + VisualGDB 5.4.2400 + JLink 6.34c (J-Trace Pro Cortex)

When in optimization level 0, context switch using BX LR works during debug, stepping in goes into the target thread after a little while. In anything but optimization level 0, GDB fails.

Cheers, David KOCH

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Kochise (david-koch) wrote on 2018-08-27:

180827_2.zip Edit (128.2 KiB, application/zip)

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Kochise (david-koch) wrote on 2018-08-27:

Looks like related to https://bugs.launchpad.net/gdb-linaro/+bug/711375

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Thomas Preud'homme (thomas-preudhomme) wrote on 2018-09-12:

Hi,

Could you create a bugzilla ticket with a minimal binary to reproduce the issue along with the steps to reproduce it? The steps should only involve gdb otherwise people might not be able to reproduce it.

Thanks!