Where is the location of the local variable address in the stm32 interrupt service function?

[Lming.10]

why is it equivalent to the use of global variables, the address will not change.

[Tesla DeLorean]

Local/automatic variables typically use the stack or are held in registers.​

[S.Ma]

local variable in general are either pure registers then vanish, or temporary put in the stack.

If it's a global, static or volatile variable, compiler will handle it differently.