When I install GNU Arm Embedded Toolchain Version 7-2018-q2-update and then try to run arm-none-eabi-gdb.exe I get an error message that says:
---------------------------arm-none-eabi-gdb.exe - System Error---------------------------The code execution cannot proceed because libwinpthread-1.dll was not found. Reinstalling the program may fix this problem. ---------------------------OK ---------------------------
Here is the page where I downloaded it from:
https://developer.arm.com/open-source/gnu-toolchain/gnu-rm/downloads
Please see another thread: https://community.arm.com/developer/tools-software/oss-platforms/f/gnu-toolchain-forum/11487/gnu-arm-embedded-toolchain-version-7-2018-q2-update-missing-libwinpthread-1-dll