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Both Development Studio and DS5 fail to load debug symbols off gcc-generated ELF

Sri

Hi,

This is is what I've discovered, and I am hoping it helps others:

When we upped the C++ std support from 11 to 17 with the GCC option -std=gnu++17, both DS5 (all versions) and Development Studio (v2021.0) failed while loading symbols from our ELF.

We're using a Xilinx-supplied gcc cross compiler (for Cortex A9), version:

make-C:\dev\akd\trunk1\make>arm-none-eabi-g++ --version
arm-none-eabi-g++ (Linaro GCC 7.3-2018.04-rc3) 7.3.1 20180314 

The fix is to add the following options to the g++ compiler: -g -gstrict-dwarf -gdwarf-3

Don't forget to do a clean make.

Best,
Sri

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  • 0

    Hi Sri

    Thanks for sharing :)

    The Debuggers of DS-5 and Arm Development Studio supports standard DWARF debug information up to DWARF4.

    Maybe the compiler was originally generating something in its DWARF that was non-standard (which the Debugger didn't understand), but which was resolved after switching to "-gstrict-dwarf -gdwarf-3".

    It might be worth trying a more recent version of GCC, to see if the behaviour has changed.

    Thanks again for sharing.

    Stephen

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  • 0

    Hi Sri

    Thanks for sharing :)

    The Debuggers of DS-5 and Arm Development Studio supports standard DWARF debug information up to DWARF4.

    Maybe the compiler was originally generating something in its DWARF that was non-standard (which the Debugger didn't understand), but which was resolved after switching to "-gstrict-dwarf -gdwarf-3".

    It might be worth trying a more recent version of GCC, to see if the behaviour has changed.

    Thanks again for sharing.

    Stephen

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