gcc-arm-none-eabi-8: GDB segmentation fault

I'm seeing a segmentation fault in gcc-arm-none-eabi-8-2018-q4-major when I try to debug a binary written in Rust (it's actually the TockOS kernel).

Rust is actually using LLVM nightly to generate the binary. I wonder if that's causing issues.

I'd gladly upload the .elf file here but the server is giving me a 500 error message

This is the repository: https://github.com/dc740/tock

It will auto-download all the required tools to compile as long as rustup command is installed and available

Here is how I'm running gdb

cd boards/ciaa/edu-ciaa
~/CIAA/gcc-arm-none-eabi-8-2018-q4-major/bin/arm-none-eabi-gdb target/thumbv7em-none-eabi/release/edu-ciaa.elf -x gdb_from_commandline_startup_commands
GNU gdb (GNU Tools for Arm Embedded Processors 8-2018-q4-major)
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "--host=x86_64-linux-gnu --target=arm-none-eabi".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
Find the GDB manual and other documentation resources online at:

For help, type "help".
Type "apropos word" to search for commands related to "word"...
/home/dc740/.gdbinit:1582: Error in sourced command file:
Scripting in the "Python" language is not supported in this copy of GDB.
Reading symbols from target/thumbv7em-none-eabi/release/edu-ciaa.elf...
Segmentation fault (core dumped)

Loading the .elf works fine. Apparently the segmentation fault appears when I try to connect to the openocd instance

OpenOCD is running like this

openocd -c "gdb_port 3333" -c "telnet_port 4444" -c "tcl_port 6666" -f ftdi_lpc4337.cfg

and the gdb commands I'm running to connect to it are:

target remote localhost:3333
set mem inaccessible-by-default off
monitor arm semihosting enable
monitor halt

I also tried to use gcc-arm-none-eabi-7-2018-q2-update and to my surprise this version works almost OK.

I'm getting a lot of these errors

warning: (Internal error: pc 0x1a00350c in read in psymtab, but not in symtab.)

I'm fully aware that these are all bugs in the toolchain, but I was wondering if anyone could give me a hint on how to workaround them, or help getting them fixed, since they are immensely blocking my progress.

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