mirror of
https://github.com/drasko/codezero.git
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76 lines
3.2 KiB
Python
76 lines
3.2 KiB
Python
# -*- mode: python; coding: utf-8; -*-
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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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#
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# This program is free software: you can redistribute it and/or modify it under the terms of the GNU
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# General Public License as published by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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# the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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# License for more details.
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#
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# You should have received a copy of the GNU General Public License along with this program. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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# Author: Russel Winder
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import os
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includeDirectory = 'include'
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toolsDirectory = 'tools'
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cml2ToolsDirectory = toolsDirectory + '/cml2-tools'
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buildDirectory = 'build'
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environment = Environment ( )
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configuration = Configure ( environment , config_h = 'config.h' )
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environment = configuration.Finish ( )
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arch = 'arm'
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platform = 'pb926'
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linkerScript = includeDirectory + '/l4/arch/' + arch + '/mylinks.lds'
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libraryEnvironment = environment.Clone (
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CC = 'arm-none-linux-gnueabi-gcc',
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CCFLAGS = [ '-g' , '-nostdinc' , '-nostdlib' , '-ffreestanding' ] ,
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LINKFLAGS = [ '-nostdlib' ] ,
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ENV = { 'PATH' : os.environ['PATH'] } ,
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LIBS = 'gcc' ,
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ARCH = arch ,
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PLATFORM = platform )
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libs = { }
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crts = { }
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for variant in [ 'baremetal' , 'userspace' ] :
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( libs[variant] , crts[variant] ) = SConscript ( 'libs/c/SConscript' , variant_dir = buildDirectory + '/lib/c/' + variant , duplicate = 0 , exports = { 'environment' : libraryEnvironment , 'variant' : variant } )
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libelf = SConscript ( 'libs/elf/SConscript' , variant_dir = buildDirectory + '/lib/elf' , duplicate = 0 , exports = { 'environment' : libraryEnvironment , 'lib' : libs['baremetal'] } )
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cmlCompiledRules = Command ( '#' + buildDirectory + '/rules.out' , '#configs/' + arch + '.cml' , cml2ToolsDirectory + '/cmlcompile.py -o $TARGET $SOURCE' )
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cmlConfiguredRules = Command ( '#' + buildDirectory + '/config.out' , cmlCompiledRules , cml2ToolsDirectory + '/cmlconfigure.py -c -o $TARGET $SOURCE' )
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cmlConfigHeader = Command ( '#' + buildDirectory + '/config.h' , cmlConfiguredRules , toolsDirectory + '/cml2header.py -o $TARGET -i $SOURCE' )
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Alias ( 'configure' , cmlConfigHeader )
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if 'configure' in COMMAND_LINE_TARGETS:
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AlwaysBuild ( cmlConfiguredRules )
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kernelEnvironment = environment.Clone (
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CC = 'arm-none-eabi-gcc' ,
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# We don't use -nostdinc because sometimes we need standard headers, such as stdarg.h e.g. for variable
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# args, as in printk().
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CCFLAGS = [ '-g' , '-mcpu=arm926ej-s' , '-nostdlib' , '-ffreestanding' , '-std=gnu99' , '-Wall' , '-Werror' ] ,
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LINKFLAGS = [ '-nostdlib' , '-T' + linkerScript ] ,
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ASFLAGS = [ '-D__ASSEMBLY__' ] ,
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PROGSUFFIX = '.axf' ,
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ENV = { 'PATH' : os.environ['PATH'] } ,
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LIBS = 'gcc' , # libgcc.a is required for the division routines.
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CPPPATH = includeDirectory ,
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CPPFLAGS = [ '-include l4/config.h' , '-include l4/macros.h' , '-include l4/types.h' , '-D__KERNEL__' ] )
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Clean ( '.' , [ buildDirectory ] )
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