I am trying to launch an interactive gdb session from a makefile, but it does not work, and gdb ends right away.

I call this EDK2 command from the terminal and get an interactive gdb session

EmulatorPkg/build.sh run

I think I have to use this command to get a debuggable emulator since the shell file calls another and has a bunch of commands to add the emulator symbols.

If called from a makefile, I do not get an interactive gdb and it just ends right away. Why?

These are the makefile commands

all_debug: build compiledb run_debug 
     Application/BootLib 
     FourthFingerPkg.dec 
     FourthFingerPkg.dsc

build:
    pwd && make VERBOSE=y _build &> $(MAKE_OUTPUT)

compiledb:
    pwd && compiledb --parse $(MAKE_OUTPUT) && rm $(MAKE_OUTPUT)

run_debug: $(BUILD_DIR)/$(EFI_FILE)
    cd .. && pwd && 
    cp ./Build/FourthFingerPkg/DEBUG_GCC/X64/FourthFingerPkg.efi ./Build/EmulatorX64/DEBUG_GCC5/X64/FourthFingerPkg.efi && 
    echo "add-symbol-file ../../../FourthFingerPkg/DEBUG_GCC/X64/FourthFingerPkg.debug" > $(GDB_COMMANDS) && 
    EmulatorPkg/build.sh run < $(GDB_COMMANDS) && 
    rm $(GDB_COMMANDS)

I imagine it is related to this message

(y or n) [answered Y; input not from terminal]

I want to be able to set up the gdb environment with the symbols from my module because the symbol files for my EFI are not loaded by EmulatorPkg/build.sh run, and loading them manually is just dumb.