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

import os, sys, shelve

# Get global paths
PROJRELROOT = '../'

cwd = os.getcwd()
os.chdir(PROJRELROOT)
execfile("configdata.py")
os.chdir(cwd)

# Get configuration information
config_shelve = shelve.open(CONFIG_SHELVE)

#symbols = config_shelve["config_symbols"]
arch = config_shelve["arch"]
subarch = config_shelve["subarch"]
platform = config_shelve["platform"]
all_syms = config_shelve["all_symbols"]

# Locally important paths are here
LIBC_PATH = '../libs/c'
LIBC_LIBPATH = LIBC_PATH
LIBC_INCPATH = [join(LIBC_PATH, 'include'), \
                join(LIBC_PATH, 'include/arch/' + arch)]
LIBC_CRT_PATH = join(LIBC_PATH, "crt/sys-baremetal/arch-" + arch + "/crt0.o")
LIBELF_PATH = '../libs/elf'
LIBELF_LIBPATH = LIBELF_PATH
LIBELF_INCPATH = join(LIBELF_PATH, 'include')

env = Environment(CC = 'arm-none-eabi-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', '-mcpu=arm926ej-s', '-nostdlib', '-ffreestanding', \
			     '-std=gnu99', '-Wall', '-Werror'],
		  LINKFLAGS = ['-nostdlib', '-T' + "linker.lds"],
		  ASFLAGS = ['-D__ASSEMBLY__'],
		  PROGSUFFIX = '.elf',
		  ENV = {'PATH' : os.environ['PATH']},
		  LIBS = ['gcc', 'c-baremetal', 'gcc'],
		  LIBPATH = [LIBC_LIBPATH, LIBELF_LIBPATH],
		  CPPPATH = ['#include', LIBC_INCPATH, LIBELF_INCPATH])

config_shelve = shelve.open(CONFIG_SHELVE)
#symbols = config_shelve["config_symbols"]
arch = config_shelve["arch"]
subarch = config_shelve["subarch"]
platform = config_shelve["platform"]
all_syms = config_shelve["all_symbols"]

src = Glob('*.[cS]')
crt0 = Glob(LIBC_CRT_PATH)

objs = env.Object(src)
env.Program('final.elf', objs + crt0)