Interrupt stack frames?

Someone suggested that I use 2-byte interrupt stack frames instead of 4-byte. 1. What is the difference? 2. How do I know if it applies to my application?
Interrupt stack frames?

Someone suggested that I use 2-byte interrupt stack frames instead of 4-byte. 1. What is the difference? 2. How do I know if it applies to my application?
Problem obtaining frame pointer in the call stack for STM32L4R9AI board

When I build my code with the following compiler option on STM32L4R9AI (Cortex M4) board with TizenRT ( https://github.com/Samsung/TizenRT ) ARCHOPTIMIZATION += -fno-omit-frame-pointer -mapcs -mno-sched...
Problem obtaining frame pointer in the call stack for STM32L4R9AI board

When I build my code with the following compiler option on STM32L4R9AI (Cortex M4) board with TizenRT ( https://github.com/Samsung/TizenRT ) ARCHOPTIMIZATION += -fno-omit-frame-pointer -mapcs -mno-sched...
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

I am using arm cortex M3 (LPC1833 controller), I created manually stack overflow in code and trying to debug through GDB I am facing below issue of the corrupted stack in GDB tool on windows platform...