Kconfig

#
mainmenu "BitThunder Configuration"

config CONFIGURED
    bool
	default y

config PROJECT_CONFIG
	bool
	option env="PROJECT_CONFIG"
	default n

config PROJECT_DIR
	string
	default "scripts" if !PROJECT_CONFIG
	option env="PROJECT_DIR"

choice
	prompt "Build OS or Library"
	default OS

config OS
	bool "OS"

config LIB
    bool "Library"

endchoice


menu "Build System (dbuild)"

config DBUILD_PYTHON
    string "Python path"
	default "/usr/bin/python"
	---help---
	DBUILD uses Python to form pretty output. Ensure it has a valid python
	interpreter path here.

choice
	prompt "Build Host Platform"
	default HOST_LINUX

config HOST_LINUX
	bool "Linux"

config HOST_WINDOWS
	bool "Windows"

config HOST_OTHER
	bool "Other"

endchoice

config TOOLCHAIN
	string "Toolchain prefix"
	default "arm-none-eabi-"


choice
	prompt "Optimisation Level"
	default OPTIMISE_NONE

config OPTIMISE_NONE
	bool "No Optimisations"

config OPTIMISE_SIZE
    bool "-Os (Optimise for size)"

config OPTIMISE_SPEED
	bool "-O2 (Optimise for speed)"

config OPTIMISE_ULTRA_SPEED
	bool "-O3 (Optimise for ultra-speed (can increase code-size))"

endchoice

config READABLE_ASM
	bool "Generate readable assembler code"
	help
          Disable some compiler optimizations that tend to generate human unreadable
          assembler output. This may make the kernel slightly slower, but it helps
          to keep kernel developers who have to stare a lot at assembler listings
          sane.

choice
	prompt "Warning Level"
	default WARN_NORMAL

config WARN_NORMAL
	bool "Normal warnings from compiler"

config WARN_ALL
	bool "-Wall on compiler"

config WARN_PEDANTIC
	bool "-Wall --pedantic"

config WARN_ERROR
	bool "-Wall -Werror"

config WARN_ERROR_PEDANTIC
	bool "-Wall -Werror --pedantic (For the insane)"

endchoice

config TOOLCHAIN_WARNING
	string
	default ""							if WARN_NORMAL
	default	"-Wall"						if WARN_ALL
	default "-Wall --pedantic"			if WARN_PEDANTIC
	default "-Wall -Werror"				if WARN_ERROR
	default "-Wall -Werror --pedantic" 	if WARN_ERROR_PEDANTIC

config TOOLCHAIN_OPTIMISATION
    string
	default "-Os" if OPTIMISE_SIZE
	default "-O0" if OPTIMISE_NONE
	default "-O2" if OPTIMISE_SPEED
	default "-O3" if OPTIMISE_ULTRA_SPEED

config TOOLCHAIN_DEBUG
    bool "Debug Symbols"
	default y

config TOOLCHAIN_DEBUG_FLAGS
	string
	default "-g" if TOOLCHAIN_DEBUG


choice
	prompt "Windows Build Environment"
	default WINDOWS_CYGWIN
	depends on HOST_WINDOWS

config WINDOWS_NATIVE
	bool "Windows Native"
	---help---
		Build natively in a CMD.exe environment with Windows style paths (like C:\cgywin\home)

config WINDOWS_CYGWIN
	bool "Cygwin"
	---help---
		Build natively in a Cygwin environment with POSIX style paths (like /cygdrive/c/cgywin/home)

config WINDOWS_MSYS
	bool "MSYS"
	---help---
		Build natively in a Cygwin environment with POSIX style paths (like /cygdrive/c/cgywin/home)

config WINDOWS_OTHER
	bool "Windows POSIX-like environment"
	---help---
		Build natively in another POSIX-like environment.  Additional support may be necessary

endchoice

menu "Build Configuration"

config BUILD_NOSTDLIB
	   bool "Disable stdlib linking"
	   default y
	   ---help---
	   Should be enabled for a pure standalone kernel.

config BUILD_GC_UNUSED
	   bool "Removed unused code/data"
	   default y
	   ---help---
	   Asks the linker to always remove unused data/code from the kernel.

config BUILD_DISASSEMBLE
	   bool "Create Assembly listing"
	   default y

config BUILD_DISASSEMBLE_SOURCE
	   bool "Source code in listing"
	   depends on BUILD_DISASSEMBLE
	   default n

endmenu

endmenu

menu "System Architecture"
source "arch/Kconfig"
endmenu

menu "OS Features"
depends on OS
source "os/Kconfig"
endmenu

menu "Drivers"
source "drivers/Kconfig"
endmenu

menu "Kernel Options"
source kernel/Kconfig
endmenu

if PROJECT_CONFIG
menu "Project Configuration"
source "$PROJECT_DIR/Kconfig"
endmenu
endif