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drasko |
# -*- mode: python; coding: utf-8; -*-
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#
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# Codezero -- a microkernel for embedded systems.
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#
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# Copyright © 2009 B Labs Ltd
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import os, sys, shelve
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from os.path import join
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from config.configuration import *
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from config.projpaths import *
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config = configuration_retrieve()
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arch = config.arch
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platform = config.platform
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gcc_arch_flag = config.gcc_arch_flag
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variant = 'baremetal'
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# Locally important paths are here
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LIBC_PATH = 'loader/libs/c'
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LIBC_LIBPATH = LIBC_PATH
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LIBC_INCPATH = ['#' + join(LIBC_PATH, 'include'), \
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'#' + join(LIBC_PATH, 'include/arch/' + arch)]
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LIBDEV_PATH = 'conts/libdev'
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LIBDEV_INCPATH = ['#' + join(LIBDEV_PATH, 'include'),]
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LIBELF_PATH = 'loader/libs/elf'
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LIBELF_LIBPATH = LIBELF_PATH
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LIBELF_INCPATH = '#' + join(LIBELF_PATH, 'include')
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env = Environment(CC = config.toolchain_kernel + 'gcc',
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AR = config.toolchain_kernel + 'ar',
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RANLIB = config.toolchain_kernel + 'ranlib',
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# We don't use -nostdinc because sometimes we need standard headers,
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# such as stdarg.h e.g. for variable args, as in printk().
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CCFLAGS = ['-g', '-nostdlib', '-ffreestanding', '-std=gnu99', '-Wall', \
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'-Werror', '-march=' + gcc_arch_flag],
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LINKFLAGS = ['-nostdlib', '-T' + join(BUILDDIR, 'loader/linker.lds'), "-u_start"],
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ASFLAGS = ['-D__ASSEMBLY__'],
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PROGSUFFIX = '.elf',
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ENV = {'PATH' : os.environ['PATH']},
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LIBS = ['gcc', 'elf', 'libdev-baremetal', 'c-baremetal', 'gcc'],
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LIBPATH = [join(join('build', LIBDEV_PATH), 'sys-' + variant), \
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join('build', LIBELF_PATH), join('build', LIBC_PATH)],
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CPPPATH = ['#include', LIBDEV_INCPATH, LIBC_INCPATH, LIBELF_INCPATH],
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CPPFLAGS = '-include l4/config.h -include l4/macros.h -include l4/types.h -D__KERNEL__')
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libdev = SConscript('conts/libdev/SConscript', \
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exports = { 'env' : env, 'arch' : arch, 'platform' : platform, 'type' : variant}, \
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duplicate = 0, variant_dir = 'build/conts/libdev/sys-' + variant)
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libc = SConscript('loader/libs/c/SConscript', \
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exports = { 'env' : env, 'arch' : arch, 'platform' : platform, 'type' : variant}, \
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duplicate = 0, variant_dir = 'build/loader/libs/c')
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libelf = SConscript('loader/libs/elf/SConscript', exports = { 'env' : env }, \
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duplicate = 0, variant_dir = 'build/loader/libs/elf')
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loader_objs = SConscript('loader/SConscript', exports = { 'env' : env }, \
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duplicate = 0, variant_dir = 'build/loader')
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final_elf = env.Program('build/final.elf', [libelf + libc + loader_objs])
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Depends(loader_objs, libelf)
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Depends(loader_objs, libc)
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