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Loader building from top-level SConstruct.loader

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Need to add libc and libelf to it as well.
This commit is contained in:
Bahadir Balban
2009-09-14 17:57:14 +03:00
parent 48351450a6
commit 15f12ce38f
3 changed files with 69 additions and 42 deletions
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SConstruct.loader Normal file
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# -*- mode: python; coding: utf-8; -*-
#
# Codezero -- a microkernel for embedded systems.
#
# Copyright © 2009 B Labs Ltd
import os, sys, shelve
from os.path import join
from config.configuration import *
from config.projpaths import *
config = configuration_retrieve()
arch = config.arch
platform = config.platform
# Locally important paths are here
LIBC_PATH = 'loader/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 = 'loader/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' + "loader/linker.lds", "-u_start"],
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])
#e.Append(LIBPATH = [LIBC_LIBPATH, LIBELF_LIBPATH])
#e.Append(CPPPATH = ['#include', LIBC_INCPATH, LIBELF_INCPATH])
loader_objs = SConscript('loader/SConscript', exports = { 'env' : env }, duplicate = 0, variant_dir = 'build/loader')
env.Program('build/final.elf', loader_objs)

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loader/SConscript Normal file
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# -*- mode: python; coding: utf-8; -*-
#
# Codezero -- a microkernel for embedded systems.
#
# Copyright © 2009 B Labs Ltd
import os, sys, shelve
from os.path import join
Import('env')
# Get global paths
PROJRELROOT = '../'
sys.path.append(PROJRELROOT)
e = env.Clone()
src = Glob('*.[cS]')
objs = e.Object(src)
Return('objs')

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loader/SConstruct
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# -*- mode: python; coding: utf-8; -*-
#
# Codezero -- a microkernel for embedded systems.
#
# Copyright © 2009 B Labs Ltd
import os, sys, shelve
from os.path import join
# Get global paths
PROJRELROOT = '../'
arch = 'arm'
platform = 'pb926'
# 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", "-u_start"],
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])
src = Glob('*.[cS]')
objs = env.Object(src)
env.Program('final.elf', objs)