# -*- mode: python; coding: utf-8; -*-
#
#  Codezero -- a microkernel for embedded systems.
#
#  Copyright © 2009  B Labs Ltd

import os, sys, shelve
from configure import *

variant = "baremetal"
config = configuration_retrieve()
arch = config.arch
subarch = config.subarch
gcc_cpu_flag = config.gcc_cpu_flag

env = Environment(CC = config.kernel_toolchain + 'gcc',
		  # We don't use -nostdinc because sometimes we need standard headers,
		  # such as stdarg.h e.g. for variable args, as in printk().
		  CCFLAGS = ['-g', '-nostdlib', '-ffreestanding', '-std=gnu99', '-Wall', \
                     '-Werror', ('-mcpu=' + gcc_cpu_flag)],
		  LINKFLAGS = ['-nostdlib', '-T' + "include/l4/arch/arm/linker.lds"],
		  ASFLAGS = ['-D__ASSEMBLY__'],
		  PROGSUFFIX = '.elf',			# The suffix to use for final executable
		  ENV = {'PATH' : os.environ['PATH']},	# Inherit shell path
		  LIBS = 'gcc',				# libgcc.a - This is required for division routines.
		  CPPFLAGS = [])

e = env.Clone()
e.Append(CPPPATH = ['include/sys-' + variant + '/arch-' + arch])
e.Append(CCFLAGS = '-nostdinc')

source = \
        Glob('src/*.c') + \
        Glob('src/sys-' + variant + '/*.c') + \
        Glob('src/sys-' + variant + '/arch-' + arch + '/*.c') + \
        Glob('src/arch-' + arch + '/*.c') + \
        Glob('src/arch-' + arch + '/*.S') + \
        Glob('crt/sys-' + variant + '/arch-' + arch + '/*.[cS]')

objects = e.StaticObject(source)
library = e.StaticLibrary('c-' + variant, objects)
#runtime = e.StaticObject('crt/sys-' + variant + '/arch-' + arch + '/crt0.S')