[Bug c/87400] GCC doesn't produce valid frames for stack traces with Thumb-2 (Cortex-M3+)

[alexkalmuk at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87400

--- Comment #4 from Alex Kalmuk <alexkalmuk at gmail dot com> ---
Thank you for pointing it out.

So now the alternative is to use .ARM.exidx linker section even for Cortex-M
(or, probably, to use dwarf debugging information on gdb side)?