The ABI*s* field of an item in the Debuggers options page shows the one ABI of the actual debugger tool binary.

The documentation for Adding Debuggers states that...

Creator shows the ABI version that will be used on embedded devices in the ABIs field

And that is what the reporter of this issue expected.

However, the actual content of the ABIs field for debuggers for embedded devices is this:

LLDB (Abi::abisOfBinary is called on the debugger frontend)

GDB (Debugger::Internal::extractGdbVersion is called with a warning message but no ABIs in the version output)

The version Android GDB output:

GNU gdb (GDB) 8.3\nCopyright (C) 2019 Free Software Foundation, Inc.\nLicense GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\nThis is free software: you are free to change and redistribute it.\nThere is NO WARRANTY, to the extent permitted by law.\nC:\Users\alportal\AppData\Local\Android\Sdk\ndk\21.3.6528147\prebuilt\windows-x86_64\bin\gdb-orig.exe: warning: Couldn't determine a path for the index cache directory.