cleanup scons building script

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1065 bbd45198-f89e-11dd-88c7-29a3b14d5316
author: [email protected] <[email protected]> 2010-11-20 12:31:00 +0000
committer: [email protected] <[email protected]> 2010-11-20 12:31:00 +0000
commit: 10732a76e9a3bf1ead47cf9848c6838236e4e343 (patch)
tree: 7475b1f6ff77e80bd357fc551de80565c9486080
parent: 2fce1a91e2577f06b68151dffa15558750346d02 (diff)
36 files changed, 716 insertions, 1010 deletions
diff --git a/bsp/dev3210/SConscript b/bsp/dev3210/SConscript
index 350f0e71a7..fb50794533 100644
--- a/bsp/dev3210/SConscript
+++ b/bsp/dev3210/SConscript
@@ -1,29 +1,10 @@
-Import('env')
-Import('projects')
 Import('RTT_ROOT')
-Import('rtconfig')
+from building import *
 
-# group definitions
-group = {}
-group['name'] = 'Startup'
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/bsp/dev3210']
-group['CPPDEFINES'] = []
-group['LINKFLAGS'] = ''
+src_bsp = ['application.c', 'startup.c', 'board.c']
+src_drv = ['uart.c', 'lnn800x480.c']
+src	= File(src_bsp + src_drv)
+CPPPATH = [RTT_ROOT + '/bsp/dev3210']
+group = DefineGroup('Startup', src, depend = [''], CPPPATH = CPPPATH)
 
-src_bsp   = ['application.c', 'startup.c', 'board.c']
-src_drv   = ['uart.c', 'lnn800x480.c']
-
-group['src'] = File(src_bsp + src_drv)
-
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-obj = env.Object(group['src'])
-
-Return('obj')
+Return('group')
diff --git a/bsp/dev3210/SConstruct b/bsp/dev3210/SConstruct
index daef695079..061f726069 100644
--- a/bsp/dev3210/SConstruct
+++ b/bsp/dev3210/SConstruct
@@ -4,9 +4,9 @@ import rtconfig
 
 RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from building import *
 
-target = 'rtthread'
-projects = []
+TARGET = 'rtthread.' + rtconfig.TARGET_EXT
 
 env = Environment(tools = ['mingw'],
 	AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
@@ -15,26 +15,14 @@ env = Environment(tools = ['mingw'],
 	LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
 env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
 
-Export('env')
 Export('RTT_ROOT')
 Export('rtconfig')
-Export('projects')
 
-# kernel building script
-objs = SConscript(RTT_ROOT + '/src/SConscript', variant_dir='build/src', duplicate=0)
-# arch building script
-objs = objs + SConscript(RTT_ROOT + '/libcpu/SConscript', variant_dir='build/libcpu', duplicate=0)
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT)
 
-# component script
-Repository(RTT_ROOT)
-objs = objs + SConscript('components/SConscript')
-
-# board build script
-objs = objs + SConscript('SConscript', variant_dir='build/bsp', duplicate=0)
-
-if rtconfig.RT_USING_RTGUI:
-	objs = objs + SConscript(RTT_ROOT + '/examples/gui/SConscript', variant_dir='build/examples/gui', duplicate=0)
-
-TARGET = target + '.' + rtconfig.TARGET_EXT
+# build program 
 env.Program(TARGET, objs)
-env.AddPostAction(TARGET, rtconfig.POST_ACTION)
+
+# end building 
+EndBuilding(TARGET)
diff --git a/bsp/dev3210/rtconfig.py b/bsp/dev3210/rtconfig.py
index 2f7b09c52f..0a582912d1 100644
--- a/bsp/dev3210/rtconfig.py
+++ b/bsp/dev3210/rtconfig.py
@@ -1,61 +1,12 @@
-import SCons.cpp
-
-# component options
-
-# make all component false
-RT_USING_FINSH 		= False
-RT_USING_DFS 		= False
-RT_USING_DFS_ELMFAT = False
-RT_USING_DFS_YAFFS2	= False
-RT_USING_LWIP 		= False
-RT_USING_WEBSERVER	= False
-RT_USING_RTGUI 		= False
-RT_USING_MODULE		= False
-
-# parse rtconfig.h to get used component
-PreProcessor = SCons.cpp.PreProcessor()
-f = file('rtconfig.h', 'r')
-contents = f.read()
-f.close()
-PreProcessor.process_contents(contents)
-rtconfig_ns = PreProcessor.cpp_namespace
-
-# finsh shell options
-if rtconfig_ns.has_key('RT_USING_FINSH'):
-	RT_USING_FINSH = True
-
-# device virtual filesystem options
-if rtconfig_ns.has_key('RT_USING_DFS'):
-    RT_USING_DFS = True
-
-    if rtconfig_ns.has_key('RT_USING_DFS_ELMFAT'):
-        RT_USING_DFS_ELMFAT = True
-    if rtconfig_ns.has_key('RT_USING_DFS_YAFFS2'):
-        RT_USING_DFS_YAFFS2 = True
-
-# lwip options
-if rtconfig_ns.has_key('RT_USING_LWIP'):
-    RT_USING_LWIP = True
-    if rtconfig_ns.has_key('RT_USING_WEBSERVER'):
-        RT_USING_WEBSERVER = True
-
-# rtgui options
-if rtconfig_ns.has_key('RT_USING_RTGUI'):
-    RT_USING_RTGUI = True
-
-# module options
-if rtconfig_ns.has_key('RT_USING_MODULE'):
-    RT_USING_MODULE = True
-
 # CPU options
 ARCH='mips'
 CPU ='loongson'
 
 # toolchains options
 CROSS_TOOL  = 'gcc'
-PLATFORM 	= 'gcc'
-EXEC_PATH 	= 'E:/Program Files/CodeSourcery/Sourcery G++ Lite/bin'
-BUILD		= 'debug'
+PLATFORM    = 'gcc'
+EXEC_PATH   = 'E:/Program Files/CodeSourcery/Sourcery G++ Lite/bin'
+BUILD       = 'debug'
 
 PREFIX = 'mips-sde-elf-'
 CC = PREFIX + 'gcc'
@@ -77,12 +28,11 @@ CPATH = ''
 LPATH = ''
 
 if BUILD == 'debug':
-	CFLAGS += ' -O0 -gdwarf-2'
-	AFLAGS += ' -gdwarf-2'
+    CFLAGS += ' -O0 -gdwarf-2'
+    AFLAGS += ' -gdwarf-2'
 else:
-	CFLAGS += ' -O2'
+    CFLAGS += ' -O2'
 
-RT_USING_MINILIBC = True
 DUMP_ACTION = OBJDUMP + ' -D -S $TARGET > rtt.asm\n'
 READELF_ACTION = READELF + ' -a $TARGET > rtt.map\n'
-POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n' + READELF_ACTION
+POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
diff --git a/bsp/lpc176x/SConscript b/bsp/lpc176x/SConscript
index 12284e970b..c4866729f3 100644
--- a/bsp/lpc176x/SConscript
+++ b/bsp/lpc176x/SConscript
@@ -1,36 +1,19 @@
-Import('env')
-Import('projects')
+import rtconfig
 Import('RTT_ROOT')
-Import('rtconfig')
-
-# group definitions
-group = {}
-group['name'] = 'Startup'
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [ RTT_ROOT + '/bsp/lpc176x/CMSIS/CM3/CoreSupport', RTT_ROOT + '/bsp/lpc176x/CMSIS/CM3/DeviceSupport/NXP/LPC17xx',RTT_ROOT + '/bsp/lpc176x']
-group['CPPDEFINES'] = []
-group['LINKFLAGS'] = ''
+from building import *
 
 src_bsp   = ['application.c', 'startup.c', 'board.c']
 src_drv   = ['uart.c', 'led.c']
 src_cmsis = ['CMSIS/CM3/CoreSupport/core_cm3.c', 'CMSIS/CM3/DeviceSupport/NXP/LPC17xx/system_LPC17xx.c']
 
-if rtconfig.RT_USING_DFS:
+if GetDepend('RT_USING_DFS'):
     src_drv += ['sd.c', 'spi.c']
 
-if rtconfig.RT_USING_LWIP:
+if GetDepend('RT_USING_LWIP'):
     src_drv += ['emac.c']
 
-group['src'] = File(src_bsp + src_drv + src_cmsis)
-
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-obj = env.Object(group['src'])
+src = File(src_bsp + src_drv + src_cmsis)
+CPPPATH = [ RTT_ROOT + '/bsp/lpc176x/CMSIS/CM3/CoreSupport', RTT_ROOT + '/bsp/lpc176x/CMSIS/CM3/DeviceSupport/NXP/LPC17xx',RTT_ROOT + '/bsp/lpc176x']
+group = DefineGroup('Startup', src, depend = [''], CPPPATH = CPPPATH)
 
-Return('obj')
+Return('group')
diff --git a/bsp/lpc176x/SConstruct b/bsp/lpc176x/SConstruct
index e3e8593216..4eb3bef0da 100644
--- a/bsp/lpc176x/SConstruct
+++ b/bsp/lpc176x/SConstruct
@@ -4,18 +4,9 @@ import rtconfig
 
 RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
-import mdk
+from building import *
 
-target = 'rtthread-lpc176x'
-projects = []
-
-AddOption('--target',
-                  dest='target',
-                  type='string',
-                  help='set target project: mdk')
-
-if GetOption('target'):
-	SetOption('no_exec', 1)
+TARGET = 'rtthread-lpc176x.' + rtconfig.TARGET_EXT
 
 env = Environment(tools = ['mingw'],
 	AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
@@ -24,26 +15,23 @@ env = Environment(tools = ['mingw'],
 	LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
 env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
 
-Export('env')
 Export('RTT_ROOT')
 Export('rtconfig')
-Export('projects')
 
-# kernel building script
-objs = SConscript(RTT_ROOT + '/src/SConscript', variant_dir='build/src', duplicate=0)
-# arch building script
-objs = objs + SConscript(RTT_ROOT + '/libcpu/SConscript', variant_dir='build/libcpu', duplicate=0)
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT)
+
+if GetDepend('RT_USING_WEBSERVER'):
+    objs = objs + SConscript(RTT_ROOT + '/components/net/webserver/SConscript', variant_dir='build/net/webserver', duplicate=0)
 
-# component script 
-Repository(RTT_ROOT)
-objs = objs + SConscript('components/SConscript')
+if GetDepend('RT_USING_RTGUI'):
+    objs = objs + SConscript(RTT_ROOT + '/examples/gui/SConscript', variant_dir='build/examples/gui', duplicate=0)
 
-# board build script
-objs = objs + SConscript('SConscript', variant_dir='build/bsp', duplicate=0)
+# libc testsuite 
+# objs = objs + SConscript(RTT_ROOT + '/examples/libc/SConscript', variant_dir='build/examples/libc', duplicate=0)
 
-TARGET = target + '.' + rtconfig.TARGET_EXT
+# build program 
 env.Program(TARGET, objs)
-env.AddPostAction(TARGET, rtconfig.POST_ACTION)
 
-if GetOption('target') == 'mdk':
-	mdk.MDKProject('project.uV2', projects)
+# end building 
+EndBuilding(TARGET)
diff --git a/bsp/lpc176x/project.Uv2 b/bsp/lpc176x/project.Uv2
index a5a120d62e..357b1f99e0 100644
--- a/bsp/lpc176x/project.Uv2
+++ b/bsp/lpc176x/project.Uv2
@@ -3,124 +3,121 @@
 
 Target (RT-Thread LPC17xx), 0x0004 // Tools: 'ARM-ADS'
 
+Group (Startup)
 Group (Kernel)
 Group (LPC17XX)
-Group (finsh)
 Group (Filesystem)
+Group (finsh)
 Group (LwIP)
-Group (Startup)
 
-File 1,1,<..\..\src\clock.c><clock.c>
-File 1,1,<..\..\src\device.c><device.c>
-File 1,1,<..\..\src\idle.c><idle.c>
-File 1,1,<..\..\src\ipc.c><ipc.c>
-File 1,1,<..\..\src\irq.c><irq.c>
-File 1,1,<..\..\src\kservice.c><kservice.c>
-File 1,1,<..\..\src\mem.c><mem.c>
-File 1,1,<..\..\src\mempool.c><mempool.c>
-File 1,1,<..\..\src\module.c><module.c>
-File 1,1,<..\..\src\object.c><object.c>
-File 1,1,<..\..\src\rtm.c><rtm.c>
-File 1,1,<..\..\src\scheduler.c><scheduler.c>
-File 1,1,<..\..\src\slab.c><slab.c>
-File 1,1,<..\..\src\thread.c><thread.c>
-File 1,1,<..\..\src\timer.c><timer.c>
-File 2,1,<..\..\libcpu\arm\lpc17xx\cpu.c><cpu.c>
-File 2,1,<..\..\libcpu\arm\lpc17xx\fault.c><fault.c>
-File 2,1,<..\..\libcpu\arm\lpc17xx\interrupt.c><interrupt.c>
-File 2,1,<..\..\libcpu\arm\lpc17xx\stack.c><stack.c>
-File 2,2,<..\..\libcpu\arm\lpc17xx\context_rvds.S><context_rvds.S>
-File 2,2,<..\..\libcpu\arm\lpc17xx\fault_rvds.S><fault_rvds.S>
-File 2,2,<..\..\libcpu\arm\lpc17xx\start_rvds.S><start_rvds.S>
-File 2,1,<..\..\libcpu\arm\common\backtrace.c><backtrace.c>
-File 2,1,<..\..\libcpu\arm\common\div0.c><div0.c>
-File 2,1,<..\..\libcpu\arm\common\showmem.c><showmem.c>
-File 3,1,<..\..\components\finsh\cmd.c><cmd.c>
-File 3,1,<..\..\components\finsh\finsh_compiler.c><finsh_compiler.c>
-File 3,1,<..\..\components\finsh\finsh_error.c><finsh_error.c>
-File 3,1,<..\..\components\finsh\finsh_heap.c><finsh_heap.c>
-File 3,1,<..\..\components\finsh\finsh_init.c><finsh_init.c>
-File 3,1,<..\..\components\finsh\finsh_node.c><finsh_node.c>
-File 3,1,<..\..\components\finsh\finsh_ops.c><finsh_ops.c>
-File 3,1,<..\..\components\finsh\finsh_parser.c><finsh_parser.c>
-File 3,1,<..\..\components\finsh\finsh_token.c><finsh_token.c>
-File 3,1,<..\..\components\finsh\finsh_var.c><finsh_var.c>
-File 3,1,<..\..\components\finsh\finsh_vm.c><finsh_vm.c>
-File 3,1,<..\..\components\finsh\shell.c><shell.c>
-File 3,1,<..\..\components\finsh\symbol.c><symbol.c>
+File 1,1,<.\application.c><application.c>
+File 1,1,<.\startup.c><startup.c>
+File 1,1,<.\board.c><board.c>
+File 1,1,<.\uart.c><uart.c>
+File 1,1,<.\led.c><led.c>
+File 1,1,<.\sd.c><sd.c>
+File 1,1,<.\spi.c><spi.c>
+File 1,1,<.\emac.c><emac.c>
+File 1,1,<CMSIS\CM3\CoreSupport\core_cm3.c><core_cm3.c>
+File 1,1,<CMSIS\CM3\DeviceSupport\NXP\LPC17xx\system_LPC17xx.c><system_LPC17xx.c>
+File 2,1,<..\..\src\clock.c><clock.c>
+File 2,1,<..\..\src\device.c><device.c>
+File 2,1,<..\..\src\idle.c><idle.c>
+File 2,1,<..\..\src\ipc.c><ipc.c>
+File 2,1,<..\..\src\irq.c><irq.c>
+File 2,1,<..\..\src\kservice.c><kservice.c>
+File 2,1,<..\..\src\mem.c><mem.c>
+File 2,1,<..\..\src\mempool.c><mempool.c>
+File 2,1,<..\..\src\module.c><module.c>
+File 2,1,<..\..\src\object.c><object.c>
+File 2,1,<..\..\src\rtm.c><rtm.c>
+File 2,1,<..\..\src\scheduler.c><scheduler.c>
+File 2,1,<..\..\src\slab.c><slab.c>
+File 2,1,<..\..\src\thread.c><thread.c>
+File 2,1,<..\..\src\timer.c><timer.c>
+File 3,1,<..\..\libcpu\arm\lpc17xx\cpu.c><cpu.c>
+File 3,1,<..\..\libcpu\arm\lpc17xx\fault.c><fault.c>
+File 3,1,<..\..\libcpu\arm\lpc17xx\interrupt.c><interrupt.c>
+File 3,1,<..\..\libcpu\arm\lpc17xx\stack.c><stack.c>
+File 3,2,<..\..\libcpu\arm\lpc17xx\context_rvds.S><context_rvds.S>
+File 3,2,<..\..\libcpu\arm\lpc17xx\fault_rvds.S><fault_rvds.S>
+File 3,2,<..\..\libcpu\arm\lpc17xx\start_rvds.S><start_rvds.S>
+File 3,1,<..\..\libcpu\arm\common\backtrace.c><backtrace.c>
+File 3,1,<..\..\libcpu\arm\common\div0.c><div0.c>
+File 3,1,<..\..\libcpu\arm\common\showmem.c><showmem.c>
+File 4,1,<..\..\components\dfs\src\dfs.c><dfs.c>
 File 4,1,<..\..\components\dfs\src\dfs_fs.c><dfs_fs.c>
-File 4,1,<..\..\components\dfs\src\dfs_init.c><dfs_init.c>
+File 4,1,<..\..\components\dfs\src\dfs_file.c><dfs_file.c>
 File 4,1,<..\..\components\dfs\src\dfs_posix.c><dfs_posix.c>
-File 4,1,<..\..\components\dfs\src\dfs_raw.c><dfs_raw.c>
-File 4,1,<..\..\components\dfs\src\dfs_util.c><dfs_util.c>
 File 4,1,<..\..\components\dfs\filesystems\elmfat\dfs_elm.c><dfs_elm.c>
 File 4,1,<..\..\components\dfs\filesystems\elmfat\ff.c><ff.c>
-File 5,1,<..\..\components\net\lwip\src\api\api_lib.c><api_lib.c>
-File 5,1,<..\..\components\net\lwip\src\api\api_msg.c><api_msg.c>
-File 5,1,<..\..\components\net\lwip\src\api\err.c><err.c>
-File 5,1,<..\..\components\net\lwip\src\api\netbuf.c><netbuf.c>
-File 5,1,<..\..\components\net\lwip\src\api\netdb.c><netdb.c>
-File 5,1,<..\..\components\net\lwip\src\api\netifapi.c><netifapi.c>
-File 5,1,<..\..\components\net\lwip\src\api\sockets.c><sockets.c>
-File 5,1,<..\..\components\net\lwip\src\api\tcpip.c><tcpip.c>
-File 5,1,<..\..\components\net\lwip\src\arch\sys_arch.c><sys_arch.c>
-File 5,1,<..\..\components\net\lwip\src\arch\sys_arch_init.c><sys_arch_init.c>
-File 5,1,<..\..\components\net\lwip\src\core\dhcp.c><dhcp.c>
-File 5,1,<..\..\components\net\lwip\src\core\dns.c><dns.c>
-File 5,1,<..\..\components\net\lwip\src\core\init.c><init.c>
-File 5,1,<..\..\components\net\lwip\src\core\memp.c><memp.c>
-File 5,1,<..\..\components\net\lwip\src\core\netif.c><netif.c>
-File 5,1,<..\..\components\net\lwip\src\core\pbuf.c><pbuf.c>
-File 5,1,<..\..\components\net\lwip\src\core\raw.c><raw.c>
-File 5,1,<..\..\components\net\lwip\src\core\stats.c><stats.c>
-File 5,1,<..\..\components\net\lwip\src\core\sys.c><sys.c>
-File 5,1,<..\..\components\net\lwip\src\core\tcp.c><tcp.c>
-File 5,1,<..\..\components\net\lwip\src\core\tcp_in.c><tcp_in.c>
-File 5,1,<..\..\components\net\lwip\src\core\tcp_out.c><tcp_out.c>
-File 5,1,<..\..\components\net\lwip\src\core\udp.c><udp.c>
-File 5,1,<..\..\components\net\lwip\src\core\ipv4\autoip.c><autoip.c>
-File 5,1,<..\..\components\net\lwip\src\core\ipv4\icmp.c><icmp.c>
-File 5,1,<..\..\components\net\lwip\src\core\ipv4\igmp.c><igmp.c>
-File 5,1,<..\..\components\net\lwip\src\core\ipv4\inet.c><inet.c>
-File 5,1,<..\..\components\net\lwip\src\core\ipv4\inet_chksum.c><inet_chksum.c>
-File 5,1,<..\..\components\net\lwip\src\core\ipv4\ip.c><ip.c>
-File 5,1,<..\..\components\net\lwip\src\core\ipv4\ip_addr.c><ip_addr.c>
-File 5,1,<..\..\components\net\lwip\src\core\ipv4\ip_frag.c><ip_frag.c>
-File 5,1,<..\..\components\net\lwip\src\core\snmp\asn1_dec.c><asn1_dec.c>
-File 5,1,<..\..\components\net\lwip\src\core\snmp\asn1_enc.c><asn1_enc.c>
-File 5,1,<..\..\components\net\lwip\src\core\snmp\mib2.c><mib2.c>
-File 5,1,<..\..\components\net\lwip\src\core\snmp\mib_structs.c><mib_structs.c>
-File 5,1,<..\..\components\net\lwip\src\core\snmp\msg_in.c><msg_in.c>
-File 5,1,<..\..\components\net\lwip\src\core\snmp\msg_out.c><msg_out.c>
-File 5,1,<..\..\components\net\lwip\src\netif\etharp.c><etharp.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ethernetif.c><ethernetif.c>
-File 5,1,<..\..\components\net\lwip\src\netif\loopif.c><loopif.c>
-File 5,1,<..\..\components\net\lwip\src\netif\slipif.c><slipif.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\auth.c><auth.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\chap.c><chap.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\chpms.c><chpms.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\fsm.c><fsm.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\ipcp.c><ipcp.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\lcp.c><lcp.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\magic.c><magic.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\md5.c><md5.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\pap.c><pap.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\ppp.c><ppp.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\ppp_oe.c><ppp_oe.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\randm.c><randm.c>
-File 5,1,<..\..\components\net\lwip\src\netif\ppp\vj.c><vj.c>
-File 6,1,<.\application.c><application.c>
-File 6,1,<.\startup.c><startup.c>
-File 6,1,<.\board.c><board.c>
-File 6,1,<.\uart.c><uart.c>
-File 6,1,<.\led.c><led.c>
-File 6,1,<.\sd.c><sd.c>
-File 6,1,<.\spi.c><spi.c>
-File 6,1,<.\emac.c><emac.c>
-File 6,1,<CMSIS\CM3\CoreSupport\core_cm3.c><core_cm3.c>
-File 6,1,<CMSIS\CM3\DeviceSupport\NXP\LPC17xx\system_LPC17xx.c><system_LPC17xx.c>
-
-
+File 5,1,<..\..\components\finsh\cmd.c><cmd.c>
+File 5,1,<..\..\components\finsh\finsh_compiler.c><finsh_compiler.c>
+File 5,1,<..\..\components\finsh\finsh_error.c><finsh_error.c>
+File 5,1,<..\..\components\finsh\finsh_heap.c><finsh_heap.c>
+File 5,1,<..\..\components\finsh\finsh_init.c><finsh_init.c>
+File 5,1,<..\..\components\finsh\finsh_node.c><finsh_node.c>
+File 5,1,<..\..\components\finsh\finsh_ops.c><finsh_ops.c>
+File 5,1,<..\..\components\finsh\finsh_parser.c><finsh_parser.c>
+File 5,1,<..\..\components\finsh\finsh_token.c><finsh_token.c>
+File 5,1,<..\..\components\finsh\finsh_var.c><finsh_var.c>
+File 5,1,<..\..\components\finsh\finsh_vm.c><finsh_vm.c>
+File 5,1,<..\..\components\finsh\shell.c><shell.c>
+File 5,1,<..\..\components\finsh\symbol.c><symbol.c>
+File 6,1,<..\..\components\net\lwip\src\api\api_lib.c><api_lib.c>
+File 6,1,<..\..\components\net\lwip\src\api\api_msg.c><api_msg.c>
+File 6,1,<..\..\components\net\lwip\src\api\err.c><err.c>
+File 6,1,<..\..\components\net\lwip\src\api\netbuf.c><netbuf.c>
+File 6,1,<..\..\components\net\lwip\src\api\netdb.c><netdb.c>
+File 6,1,<..\..\components\net\lwip\src\api\netifapi.c><netifapi.c>
+File 6,1,<..\..\components\net\lwip\src\api\sockets.c><sockets.c>
+File 6,1,<..\..\components\net\lwip\src\api\tcpip.c><tcpip.c>
+File 6,1,<..\..\components\net\lwip\src\arch\sys_arch.c><sys_arch.c>
+File 6,1,<..\..\components\net\lwip\src\arch\sys_arch_init.c><sys_arch_init.c>
+File 6,1,<..\..\components\net\lwip\src\core\dhcp.c><dhcp.c>
+File 6,1,<..\..\components\net\lwip\src\core\dns.c><dns.c>
+File 6,1,<..\..\components\net\lwip\src\core\init.c><init.c>
+File 6,1,<..\..\components\net\lwip\src\core\memp.c><memp.c>
+File 6,1,<..\..\components\net\lwip\src\core\netif.c><netif.c>
+File 6,1,<..\..\components\net\lwip\src\core\pbuf.c><pbuf.c>
+File 6,1,<..\..\components\net\lwip\src\core\raw.c><raw.c>
+File 6,1,<..\..\components\net\lwip\src\core\stats.c><stats.c>
+File 6,1,<..\..\components\net\lwip\src\core\sys.c><sys.c>
+File 6,1,<..\..\components\net\lwip\src\core\tcp.c><tcp.c>
+File 6,1,<..\..\components\net\lwip\src\core\tcp_in.c><tcp_in.c>
+File 6,1,<..\..\components\net\lwip\src\core\tcp_out.c><tcp_out.c>
+File 6,1,<..\..\components\net\lwip\src\core\udp.c><udp.c>
+File 6,1,<..\..\components\net\lwip\src\core\ipv4\autoip.c><autoip.c>
+File 6,1,<..\..\components\net\lwip\src\core\ipv4\icmp.c><icmp.c>
+File 6,1,<..\..\components\net\lwip\src\core\ipv4\igmp.c><igmp.c>
+File 6,1,<..\..\components\net\lwip\src\core\ipv4\inet.c><inet.c>
+File 6,1,<..\..\components\net\lwip\src\core\ipv4\inet_chksum.c><inet_chksum.c>
+File 6,1,<..\..\components\net\lwip\src\core\ipv4\ip.c><ip.c>
+File 6,1,<..\..\components\net\lwip\src\core\ipv4\ip_addr.c><ip_addr.c>
+File 6,1,<..\..\components\net\lwip\src\core\ipv4\ip_frag.c><ip_frag.c>
+File 6,1,<..\..\components\net\lwip\src\core\snmp\asn1_dec.c><asn1_dec.c>
+File 6,1,<..\..\components\net\lwip\src\core\snmp\asn1_enc.c><asn1_enc.c>
+File 6,1,<..\..\components\net\lwip\src\core\snmp\mib2.c><mib2.c>
+File 6,1,<..\..\components\net\lwip\src\core\snmp\mib_structs.c><mib_structs.c>
+File 6,1,<..\..\components\net\lwip\src\core\snmp\msg_in.c><msg_in.c>
+File 6,1,<..\..\components\net\lwip\src\core\snmp\msg_out.c><msg_out.c>
+File 6,1,<..\..\components\net\lwip\src\netif\etharp.c><etharp.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ethernetif.c><ethernetif.c>
+File 6,1,<..\..\components\net\lwip\src\netif\loopif.c><loopif.c>
+File 6,1,<..\..\components\net\lwip\src\netif\slipif.c><slipif.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\auth.c><auth.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\chap.c><chap.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\chpms.c><chpms.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\fsm.c><fsm.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\ipcp.c><ipcp.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\lcp.c><lcp.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\magic.c><magic.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\md5.c><md5.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\pap.c><pap.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\ppp.c><ppp.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\ppp_oe.c><ppp_oe.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\randm.c><randm.c>
+File 6,1,<..\..\components\net\lwip\src\netif\ppp\vj.c><vj.c>
 
 
 Options 1,0,0  // Target 'RT-Thread LPC17xx'
@@ -181,7 +178,7 @@ Options 1,0,0  // Target 'RT-Thread LPC17xx'
  ADSCMISC ()
  ADSCDEFN ()
  ADSCUDEF ()
- ADSCINCD (..\..\components\net\lwip\src\include\ipv4;..\..\components\dfs;CMSIS\CM3\DeviceSupport\NXP\LPC17xx;..\..\components\net\lwip\src\include;.;..\..\libcpu\arm\lpc17xx;..\..\include;..\..\components\net\lwip\src\arch\include;..\..\components\dfs\include;..\..\components\net\lwip\src;..\..\components\net\lwip\src\netif\ppp;CMSIS\CM3\CoreSupport;..\..\components\finsh;..\..\components\net\lwip\src\include\netif)
+ ADSCINCD (..\..\components\net\lwip\src\include\ipv4;..\..\components\dfs;CMSIS\CM3\DeviceSupport\NXP\LPC17xx;..\..\components\net\lwip\src\include;.;..\..\libcpu\arm\lpc17xx;..\..\include;..\..\components\net\lwip\src\arch\include;..\..\components\dfs\include;..\..\components\net\lwip\src;..\..\libcpu\arm\common;..\..\components\net\lwip\src\netif\ppp;CMSIS\CM3\CoreSupport;..\..\components\finsh;..\..\components\net\lwip\src\include\netif)
  ADSASFLG { 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
  ADSAMISC ()
  ADSADEFN ()
diff --git a/bsp/lpc176x/rtconfig.py b/bsp/lpc176x/rtconfig.py
index 1f0f0cea16..c99291f7a4 100644
--- a/bsp/lpc176x/rtconfig.py
+++ b/bsp/lpc176x/rtconfig.py
@@ -1,47 +1,3 @@
-import SCons.cpp
-
-# component options
-
-# make all component false
-RT_USING_FINSH 		= False
-RT_USING_DFS 		= False
-RT_USING_DFS_ELMFAT 	= False
-RT_USING_DFS_YAFFS2	= False
-RT_USING_LWIP 		= False
-RT_USING_WEBSERVER	= False
-RT_USING_RTGUI 		= False
-
-# parse rtconfig.h to get used component
-PreProcessor = SCons.cpp.PreProcessor()
-f = file('rtconfig.h', 'r')
-contents = f.read()
-f.close()
-PreProcessor.process_contents(contents)
-rtconfig_ns = PreProcessor.cpp_namespace
-
-# finsh shell options
-if rtconfig_ns.has_key('RT_USING_FINSH'):
-	RT_USING_FINSH = True
-
-# device virtual filesystem options
-if rtconfig_ns.has_key('RT_USING_DFS'):
-    RT_USING_DFS = True
-
-    if rtconfig_ns.has_key('RT_USING_DFS_ELMFAT'):
-        RT_USING_DFS_ELMFAT = True
-    if rtconfig_ns.has_key('RT_USING_DFS_YAFFS2'):
-        RT_USING_DFS_YAFFS2 = True
-
-# lwip options
-if rtconfig_ns.has_key('RT_USING_LWIP'):
-    RT_USING_LWIP = True
-    if rtconfig_ns.has_key('RT_USING_WEBSERVER'):
-        RT_USING_WEBSERVER = True
-
-# rtgui options
-if rtconfig_ns.has_key('RT_USING_RTGUI'):
-    RT_USING_RTGUI = True
-
 # toolchains options
 ARCH='arm'
 CPU='lpc17xx'
@@ -82,7 +38,6 @@ if PLATFORM == 'gcc':
     else:
         CFLAGS += ' -O2'
 
-    RT_USING_MINILIBC = True
     POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
 
 elif PLATFORM == 'armcc':
@@ -109,7 +64,6 @@ elif PLATFORM == 'armcc':
     else:
         CFLAGS += ' -O2'
 
-    RT_USING_MINILIBC = False
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
 elif PLATFORM == 'iar':
diff --git a/bsp/mini2440/SConscript b/bsp/mini2440/SConscript
index bf611ca4cc..85e56d1fc0 100644
--- a/bsp/mini2440/SConscript
+++ b/bsp/mini2440/SConscript
@@ -1,32 +1,23 @@
-Import('env')
-Import('projects')
+import rtconfig
 Import('RTT_ROOT')
-Import('rtconfig')
-
-# group definitions
-group = {}
-group['name'] = 'Startup'
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/bsp/mini2440']
-group['CPPDEFINES'] = []
-group['LINKFLAGS'] = ''
+from building import *
 
 src_bsp = ['application.c', 'startup.c', 'board.c', 'calendar.c']
 src_drv = ['console.c', 'led.c']
 
-if rtconfig.RT_USING_DFS:
+if GetDepend('RT_USING_DFS'):
 	src_drv += ['sdcard.c']
 
-if rtconfig.RT_USING_LWIP:
+if GetDepend('RT_USING_LWIP'):
 	src_drv += ['dm9000.c']
 
-if rtconfig.RT_USING_RTGUI:
+if GetDepend('RT_USING_RTGUI'):
     src_drv += ['touch.c', 'key.c', 'calibration.c']
 
-if rtconfig.RT_USING_FTK:
+if GetDepend('RT_USING_FTK'):
     src_drv += ['touch.c', 'key.c']
 
-if rtconfig.RT_USING_RTGUI:
+if GetDepend('RT_USING_RTGUI') or GetDepend('RT_USING_FTK'):
 	if rtconfig.RT_USING_LCD_TYPE == 'PNL_A70':
 		src_drv += ['lcd_a70.c']
 	elif rtconfig.RT_USING_LCD_TYPE == 'PNL_N35':
@@ -34,24 +25,8 @@ if rtconfig.RT_USING_RTGUI:
 	elif rtconfig.RT_USING_LCD_TYPE == 'PNL_T35':
 		src_drv += ['lcd_t35.c']
 
-if rtconfig.RT_USING_FTK:
-	if rtconfig.RT_USING_LCD_TYPE == 'PNL_A70':
-		src_drv += ['lcd_a70.c']
-	elif rtconfig.RT_USING_LCD_TYPE == 'PNL_N35':
-		src_drv += ['lcd_n35.c']
-	elif rtconfig.RT_USING_LCD_TYPE == 'PNL_T35':
-		src_drv += ['lcd_t35.c']
-
-group['src'] = File(src_bsp + src_drv)
-
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-obj = env.Object(group['src'])
+src	= File(src_bsp + src_drv)
+CPPPATH = [RTT_ROOT + '/bsp/mini2440']
+group = DefineGroup('Startup', src, depend = [''], CPPPATH = CPPPATH)
 
-Return('obj')
+Return('group')
diff --git a/bsp/mini2440/SConstruct b/bsp/mini2440/SConstruct
index 462e20a79e..75a0429dde 100644
--- a/bsp/mini2440/SConstruct
+++ b/bsp/mini2440/SConstruct
@@ -4,20 +4,9 @@ import rtconfig
 
 RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
-import mdk
+from building import *
 
-target = 'rtthread-mini2440'
-projects = []
-
-AddOption('--target',
-                  dest='target',
-                  type='string',
-                  help='set target project: mdk')
-
-if GetOption('target'):
-	SetOption('no_exec', 1)
-
-TARGET = target + '.' + rtconfig.TARGET_EXT
+TARGET = 'rtthread-mini2440.' + rtconfig.TARGET_EXT
 
 env = Environment(tools = ['mingw'],
 	AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
@@ -26,61 +15,23 @@ env = Environment(tools = ['mingw'],
 	LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
 env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
 
-Export('env')
 Export('RTT_ROOT')
 Export('rtconfig')
-Export('projects')
-Export('TARGET')
-
-if env['PLATFORM'] == 'win32' and rtconfig.PLATFORM == 'gcc':
-    import win32file
-    import win32event
-    import win32process
-    import win32security
-
-    def my_spawn(sh, escape, cmd, args, spawnenv):
-        for var in spawnenv:
-            spawnenv[var] = spawnenv[var].encode('ascii', 'replace')
-
-        sAttrs = win32security.SECURITY_ATTRIBUTES()
-        StartupInfo = win32process.STARTUPINFO()
-        newargs = ' '.join(map(escape, args[1:]))
-        cmdline = cmd + " " + newargs
-
-        # check for any special operating system commands
-        if cmd == 'del':
-            for arg in args[1:]:
-                win32file.DeleteFile(arg)
-            exit_code = 0
-        else:
-            # otherwise execute the command.
-            hProcess, hThread, dwPid, dwTid = win32process.CreateProcess(None, cmdline, None, None, 1, 0, spawnenv, None, StartupInfo)
-            win32event.WaitForSingleObject(hProcess, win32event.INFINITE)
-            exit_code = win32process.GetExitCodeProcess(hProcess)
-            win32file.CloseHandle(hProcess);
-            win32file.CloseHandle(hThread);
-        return exit_code
-
-    env['SPAWN'] = my_spawn
-
-objs = SConscript(RTT_ROOT + '/src/SConscript', variant_dir='build/src', duplicate=0)
-objs = objs + SConscript(RTT_ROOT + '/libcpu/SConscript', variant_dir='build/libcpu', duplicate=0)
 
-if rtconfig.RT_USING_WEBSERVER:
-	objs = objs + SConscript(RTT_ROOT + '/components/net/webserver/SConscript', variant_dir='build/net/webserver', duplicate=0)
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT)
 
-if rtconfig.RT_USING_RTGUI:
-	objs = objs + SConscript(RTT_ROOT + '/examples/gui/SConscript', variant_dir='build/examples/gui', duplicate=0)
+if GetDepend('RT_USING_WEBSERVER'):
+    objs = objs + SConscript(RTT_ROOT + '/components/net/webserver/SConscript', variant_dir='build/net/webserver', duplicate=0)
 
-# board build script
-objs = objs + SConscript('SConscript', variant_dir='build/bsp', duplicate=0)
+if GetDepend('RT_USING_RTGUI'):
+    objs = objs + SConscript(RTT_ROOT + '/examples/gui/SConscript', variant_dir='build/examples/gui', duplicate=0)
 
-# component script 
-Repository(RTT_ROOT)
-objs = objs + SConscript('components/SConscript')
+# libc testsuite 
+# objs = objs + SConscript(RTT_ROOT + '/examples/libc/SConscript', variant_dir='build/examples/libc', duplicate=0)
 
+# build program 
 env.Program(TARGET, objs)
-env.AddPostAction(TARGET, rtconfig.POST_ACTION)
 
-if GetOption('target') == 'mdk':
-	mdk.MDKProject('project.uV2', projects)
+# end building 
+EndBuilding(TARGET)
diff --git a/bsp/mini2440/rtconfig.py b/bsp/mini2440/rtconfig.py
index 90b8c8f6db..dce03130e1 100644
--- a/bsp/mini2440/rtconfig.py
+++ b/bsp/mini2440/rtconfig.py
@@ -1,77 +1,3 @@
-import SCons.cpp
-
-# component options
-
-# make all component false
-RT_USING_FINSH      = False
-RT_USING_DFS        = False
-RT_USING_DFS_ELMFAT = False
-RT_USING_DFS_YAFFS2 = False
-RT_USING_DFS_NFS    = False
-RT_USING_DFS_ROMFS  = False
-RT_USING_DFS_DEVFS  = False
-RT_USING_LWIP       = False
-RT_USING_WEBSERVER  = False
-RT_USING_RTGUI      = False
-RT_USING_MODBUS     = False
-RT_USING_MODULE     = False
-RT_USING_FTK        = False
-RT_USING_NEWLIB     = False
-RT_USING_PTHREAD    = False
-
-# parse rtconfig.h to get used component
-PreProcessor = SCons.cpp.PreProcessor()
-f = file('rtconfig.h', 'r')
-contents = f.read()
-f.close()
-PreProcessor.process_contents(contents)
-rtconfig_ns = PreProcessor.cpp_namespace
-
-# libc options
-if rtconfig_ns.has_key('RT_USING_NEWLIB'):
-    RT_USING_NEWLIB = True
-
-if rtconfig_ns.has_key('RT_USING_PTHREAD'):
-    RT_USING_PTHREAD = True
-
-# finsh shell options
-if rtconfig_ns.has_key('RT_USING_FINSH'):
-    RT_USING_FINSH = True
-
-# device virtual filesystem options
-if rtconfig_ns.has_key('RT_USING_DFS'):
-    RT_USING_DFS = True
-
-    if rtconfig_ns.has_key('RT_USING_DFS_ELMFAT'):
-        RT_USING_DFS_ELMFAT = True
-    if rtconfig_ns.has_key('RT_DFS_ELM_USE_LFN'):
-        RT_DFS_ELM_USE_LFN = True           
-    if rtconfig_ns.has_key('RT_USING_DFS_YAFFS2'):
-        RT_USING_DFS_YAFFS2 = True
-    if rtconfig_ns.has_key('RT_USING_DFS_NFS'):
-        RT_USING_DFS_NFS    = True
-    if rtconfig_ns.has_key('RT_USING_DFS_ROMFS'):
-        RT_USING_DFS_ROMFS    = True
-    if rtconfig_ns.has_key('RT_USING_DFS_DEVFS'):
-        RT_USING_DFS_DEVFS    = True
-
-# lwip options
-if rtconfig_ns.has_key('RT_USING_LWIP'):
-    RT_USING_LWIP = True
-    if rtconfig_ns.has_key('RT_USING_WEBSERVER'):
-        RT_USING_WEBSERVER = True
-
-# rtgui options
-if rtconfig_ns.has_key('RT_USING_RTGUI'):
-    RT_USING_RTGUI = True
-
-if rtconfig_ns.has_key('RT_USING_FTK'):
-    RT_USING_FTK = True
-
-# module options
-if rtconfig_ns.has_key('RT_USING_MODULE'):
-    RT_USING_MODULE = True
-		
 # panel options
 # 'PNL_A70','PNL_N35', 'PNL_T35'
 RT_USING_LCD_TYPE = 'PNL_T35'
@@ -117,9 +43,6 @@ if PLATFORM == 'gcc':
     else:
         CFLAGS += ' -O2'
 
-    if RT_USING_WEBSERVER:
-        CFLAGS += ' -DWEBS -DUEMF -DRTT -D__NO_FCNTL=1 -DRT_USING_WEBSERVER'
-
     POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
 
 elif PLATFORM == 'armcc':
@@ -146,9 +69,6 @@ elif PLATFORM == 'armcc':
     else:
         CFLAGS += ' -O2'
 
-    RT_USING_MINILIBC = False
-    if RT_USING_WEBSERVER:
-        CFLAGS += ' -DWEBS -DUEMF -DRTT -D__NO_FCNTL=1 -DRT_USING_WEBSERVER'
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
 elif PLATFORM == 'iar':
diff --git a/bsp/stm3210/Libraries/SConscript b/bsp/stm3210/Libraries/SConscript
index 2fe127941d..73e242f71b 100644
--- a/bsp/stm3210/Libraries/SConscript
+++ b/bsp/stm3210/Libraries/SConscript
@@ -1,9 +1,9 @@
-Import('env')
+import rtconfig
 Import('RTT_ROOT')
-Import('projects')
+from building import *
 
 # The set of source files associated with this SConscript file.
-src_local = Split("""
+src = Split("""
 CMSIS/Core/CM3/core_cm3.c
 CMSIS/Core/CM3/system_stm32f10x.c
 STM32F10x_StdPeriph_Driver/src/stm32f10x_crc.c
@@ -33,20 +33,7 @@ STM32F10x_StdPeriph_Driver/src/misc.c
 path = [RTT_ROOT + '/bsp/stm3210/Libraries/STM32F10x_StdPeriph_Driver/inc', 
     RTT_ROOT + '/bsp/stm3210/Libraries/CMSIS/Core/CM3']
 
-# group definitions
-group = {}
-group['name'] = 'STM32_StdPeriph'
-group['CCFLAGS'] = ''
-group['CPPPATH'] = path
-group['CPPDEFINES'] = []
-group['LINKFLAGS'] = ''
-group['src'] = File(src_local)
+CPPDEFINES = ['USE_STDPERIPH_DRIVER', rtconfig.STM32_TYPE]
+group = DefineGroup('STM32_StdPeriph', src, depend = [''], CPPPATH = path)
 
-# add group to project list
-projects.append(group)
-
-env.Append(CPPPATH = path)
-
-obj = env.Object(src_local)
-
-Return('obj')
+Return('group')
diff --git a/bsp/stm3210/SConscript b/bsp/stm3210/SConscript
index 47f884cbe9..c96e2f9a80 100644
--- a/bsp/stm3210/SConscript
+++ b/bsp/stm3210/SConscript
@@ -1,41 +1,25 @@
-Import('env')
-Import('projects')
+import rtconfig
 Import('RTT_ROOT')
-Import('rtconfig')
-
-# group definitions
-group = {}
-group['name'] = 'Startup'
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/bsp/stm3210']
-group['CPPDEFINES'] = ['USE_STDPERIPH_DRIVER', rtconfig.STM32_TYPE]
-group['LINKFLAGS'] = ''
+from building import *
 
 src_bsp = ['application.c', 'startup.c', 'board.c', 'stm32f10x_it.c']
 src_drv = ['rtc.c', 'usart.c', 'led.c']
 
-if rtconfig.RT_USING_DFS:
+if GetDepend('RT_USING_DFS'):
 	if rtconfig.STM32_TYPE == 'STM32F10X_HD':
 		src_drv += ['sdcard.c']
 	else:
 		src_drv += ['msd.c']
 
-if rtconfig.RT_USING_LWIP:
+if GetDepend('RT_USING_LWIP'):
 	if rtconfig.STM32_TYPE == 'STM32F10X_CL':
 		src_drv += ['stm32_eth.c']
 	else:
 		src_drv += ['enc28j60.c']
 
-group['src'] = File(src_bsp + src_drv)
-
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-obj = env.Object(group['src'])
+src = src_bsp + src_drv
+CPPPATH = [RTT_ROOT + '/bsp/stm3210']
+CPPDEFINES = ['USE_STDPERIPH_DRIVER', rtconfig.STM32_TYPE]
+group = DefineGroup('Startup', src, depend = [''], CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)
 
-Return('obj')
+Return('group')
diff --git a/bsp/stm3210/SConstruct b/bsp/stm3210/SConstruct
index 38e0bed6d0..3ba4a0249d 100644
--- a/bsp/stm3210/SConstruct
+++ b/bsp/stm3210/SConstruct
@@ -4,18 +4,9 @@ import rtconfig
 
 RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
-import mdk
+from building import *
 
-target = 'rtthread-stm32'
-projects = []
-
-AddOption('--target',
-                  dest='target',
-                  type='string',
-                  help='set target project: mdk')
-
-if GetOption('target'):
-	SetOption('no_exec', 1)
+TARGET = 'rtthread-stm32.' + rtconfig.TARGET_EXT
 
 env = Environment(tools = ['mingw'],
 	AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
@@ -24,28 +15,17 @@ env = Environment(tools = ['mingw'],
 	LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
 env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
 
-Export('env')
 Export('RTT_ROOT')
 Export('rtconfig')
-Export('projects')
 
-# kernel building script
-objs = SConscript(RTT_ROOT + '/src/SConscript', variant_dir='build/src', duplicate=0)
-# arch building script
-objs = objs + SConscript(RTT_ROOT + '/libcpu/SConscript', variant_dir='build/libcpu', duplicate=0)
-# STM32 firemare library building script
-objs = objs + SConscript(RTT_ROOT + '/bsp/stm3210/Libraries/SConscript', variant_dir='build/Libraries', duplicate=0)
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT)
 
-# component script 
-Repository(RTT_ROOT)
-objs = objs + SConscript('components/SConscript')
-
-# board build script
-objs = objs + SConscript('SConscript', variant_dir='build/bsp', duplicate=0)
+# STM32 firemare library building script
+objs = objs + SConscript(RTT_ROOT + '/bsp/stm3210/Libraries/SConscript', variant_dir='bsp/Libraries', duplicate=0)
 
-TARGET = target + '.' + rtconfig.TARGET_EXT
+# build program 
 env.Program(TARGET, objs)
-env.AddPostAction(TARGET, rtconfig.POST_ACTION)
 
-if GetOption('target') == 'mdk':
-	mdk.MDKProject('project.Uv2', projects)
+# end building 
+EndBuilding(TARGET)
diff --git a/bsp/stm3210/project.Uv2 b/bsp/stm3210/project.Uv2
index 698018cefb..292e2e263e 100644
--- a/bsp/stm3210/project.Uv2
+++ b/bsp/stm3210/project.Uv2
@@ -3,83 +3,68 @@
 
 Target (RT-Thread STM32), 0x0004 // Tools: 'ARM-ADS'
 
+Group (Startup)
 Group (Kernel)
 Group (STM32)
-Group (STM32_StdPeriph)
-Group (finsh)
 Group (Filesystem)
+Group (finsh)
 Group (LwIP)
-Group (Startup)
+Group (STM32_StdPeriph)
 
-File 1,1,<..\..\src\clock.c><clock.c>
-File 1,1,<..\..\src\device.c><device.c>
-File 1,1,<..\..\src\idle.c><idle.c>
-File 1,1,<..\..\src\ipc.c><ipc.c>
-File 1,1,<..\..\src\irq.c><irq.c>
-File 1,1,<..\..\src\kservice.c><kservice.c>
-File 1,1,<..\..\src\mem.c><mem.c>
-File 1,1,<..\..\src\mempool.c><mempool.c>
-File 1,1,<..\..\src\module.c><module.c>
-File 1,1,<..\..\src\object.c><object.c>
-File 1,1,<..\..\src\rtm.c><rtm.c>
-File 1,1,<..\..\src\scheduler.c><scheduler.c>
-File 1,1,<..\..\src\slab.c><slab.c>
-File 1,1,<..\..\src\thread.c><thread.c>
-File 1,1,<..\..\src\timer.c><timer.c>
-File 2,1,<..\..\libcpu\arm\stm32\cpu.c><cpu.c>
-File 2,1,<..\..\libcpu\arm\stm32\fault.c><fault.c>
-File 2,1,<..\..\libcpu\arm\stm32\interrupt.c><interrupt.c>
-File 2,1,<..\..\libcpu\arm\stm32\serial.c><serial.c>
-File 2,1,<..\..\libcpu\arm\stm32\stack.c><stack.c>
-File 2,2,<..\..\libcpu\arm\stm32\context_rvds.S><context_rvds.S>
-File 2,2,<..\..\libcpu\arm\stm32\fault_rvds.S><fault_rvds.S>
-File 2,2,<..\..\libcpu\arm\stm32\start_rvds.S><start_rvds.S>
-File 2,1,<..\..\libcpu\arm\common\backtrace.c><backtrace.c>
-File 2,1,<..\..\libcpu\arm\common\div0.c><div0.c>
-File 2,1,<..\..\libcpu\arm\common\showmem.c><showmem.c>
-File 3,1,<Libraries\CMSIS\Core\CM3\core_cm3.c><core_cm3.c>
-File 3,1,<Libraries\CMSIS\Core\CM3\system_stm32f10x.c><system_stm32f10x.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_crc.c><stm32f10x_crc.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_rcc.c><stm32f10x_rcc.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_wwdg.c><stm32f10x_wwdg.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_pwr.c><stm32f10x_pwr.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_exti.c><stm32f10x_exti.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_bkp.c><stm32f10x_bkp.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_i2c.c><stm32f10x_i2c.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_adc.c><stm32f10x_adc.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dac.c><stm32f10x_dac.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_rtc.c><stm32f10x_rtc.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_fsmc.c><stm32f10x_fsmc.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_tim.c><stm32f10x_tim.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_iwdg.c><stm32f10x_iwdg.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_spi.c><stm32f10x_spi.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_flash.c><stm32f10x_flash.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_sdio.c><stm32f10x_sdio.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_gpio.c><stm32f10x_gpio.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_usart.c><stm32f10x_usart.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dbgmcu.c><stm32f10x_dbgmcu.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dma.c><stm32f10x_dma.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_can.c><stm32f10x_can.c>
-File 3,1,<Libraries\STM32F10x_StdPeriph_Driver\src\misc.c><misc.c>
-File 4,1,<..\..\components\finsh\cmd.c><cmd.c>
-File 4,1,<..\..\components\finsh\finsh_compiler.c><finsh_compiler.c>
-File 4,1,<..\..\components\finsh\finsh_error.c><finsh_error.c>
-File 4,1,<..\..\components\finsh\finsh_heap.c><finsh_heap.c>
-File 4,1,<..\..\components\finsh\finsh_init.c><finsh_init.c>
-File 4,1,<..\..\components\finsh\finsh_node.c><finsh_node.c>
-File 4,1,<..\..\components\finsh\finsh_ops.c><finsh_ops.c>
-File 4,1,<..\..\components\finsh\finsh_parser.c><finsh_parser.c>
-File 4,1,<..\..\components\finsh\finsh_token.c><finsh_token.c>
-File 4,1,<..\..\components\finsh\finsh_var.c><finsh_var.c>
-File 4,1,<..\..\components\finsh\finsh_vm.c><finsh_vm.c>
-File 4,1,<..\..\components\finsh\shell.c><shell.c>
-File 4,1,<..\..\components\finsh\symbol.c><symbol.c>
-File 5,1,<..\..\components\dfs\src\dfs.c><dfs.c>
-File 5,1,<..\..\components\dfs\src\dfs_fs.c><dfs_fs.c>
-File 5,1,<..\..\components\dfs\src\dfs_file.c><dfs_file.c>
-File 5,1,<..\..\components\dfs\src\dfs_posix.c><dfs_posix.c>
-File 5,1,<..\..\components\dfs\filesystems\elmfat\dfs_elm.c><dfs_elm.c>
-File 5,1,<..\..\components\dfs\filesystems\elmfat\ff.c><ff.c>
+File 1,1,<.\application.c><application.c>
+File 1,1,<.\startup.c><startup.c>
+File 1,1,<.\board.c><board.c>
+File 1,1,<.\stm32f10x_it.c><stm32f10x_it.c>
+File 1,1,<.\rtc.c><rtc.c>
+File 1,1,<.\usart.c><usart.c>
+File 1,1,<.\led.c><led.c>
+File 1,1,<.\sdcard.c><sdcard.c>
+File 1,1,<.\enc28j60.c><enc28j60.c>
+File 2,1,<..\..\src\clock.c><clock.c>
+File 2,1,<..\..\src\device.c><device.c>
+File 2,1,<..\..\src\idle.c><idle.c>
+File 2,1,<..\..\src\ipc.c><ipc.c>
+File 2,1,<..\..\src\irq.c><irq.c>
+File 2,1,<..\..\src\kservice.c><kservice.c>
+File 2,1,<..\..\src\mem.c><mem.c>
+File 2,1,<..\..\src\mempool.c><mempool.c>
+File 2,1,<..\..\src\module.c><module.c>
+File 2,1,<..\..\src\object.c><object.c>
+File 2,1,<..\..\src\rtm.c><rtm.c>
+File 2,1,<..\..\src\scheduler.c><scheduler.c>
+File 2,1,<..\..\src\slab.c><slab.c>
+File 2,1,<..\..\src\thread.c><thread.c>
+File 2,1,<..\..\src\timer.c><timer.c>
+File 3,1,<..\..\libcpu\arm\stm32\cpu.c><cpu.c>
+File 3,1,<..\..\libcpu\arm\stm32\fault.c><fault.c>
+File 3,1,<..\..\libcpu\arm\stm32\interrupt.c><interrupt.c>
+File 3,1,<..\..\libcpu\arm\stm32\serial.c><serial.c>
+File 3,1,<..\..\libcpu\arm\stm32\stack.c><stack.c>
+File 3,2,<..\..\libcpu\arm\stm32\context_rvds.S><context_rvds.S>
+File 3,2,<..\..\libcpu\arm\stm32\fault_rvds.S><fault_rvds.S>
+File 3,2,<..\..\libcpu\arm\stm32\start_rvds.S><start_rvds.S>
+File 3,1,<..\..\libcpu\arm\common\backtrace.c><backtrace.c>
+File 3,1,<..\..\libcpu\arm\common\div0.c><div0.c>
+File 3,1,<..\..\libcpu\arm\common\showmem.c><showmem.c>
+File 4,1,<..\..\components\dfs\src\dfs.c><dfs.c>
+File 4,1,<..\..\components\dfs\src\dfs_fs.c><dfs_fs.c>
+File 4,1,<..\..\components\dfs\src\dfs_file.c><dfs_file.c>
+File 4,1,<..\..\components\dfs\src\dfs_posix.c><dfs_posix.c>
+File 4,1,<..\..\components\dfs\filesystems\elmfat\dfs_elm.c><dfs_elm.c>
+File 4,1,<..\..\components\dfs\filesystems\elmfat\ff.c><ff.c>
+File 5,1,<..\..\components\finsh\cmd.c><cmd.c>
+File 5,1,<..\..\components\finsh\finsh_compiler.c><finsh_compiler.c>
+File 5,1,<..\..\components\finsh\finsh_error.c><finsh_error.c>
+File 5,1,<..\..\components\finsh\finsh_heap.c><finsh_heap.c>
+File 5,1,<..\..\components\finsh\finsh_init.c><finsh_init.c>
+File 5,1,<..\..\components\finsh\finsh_node.c><finsh_node.c>
+File 5,1,<..\..\components\finsh\finsh_ops.c><finsh_ops.c>
+File 5,1,<..\..\components\finsh\finsh_parser.c><finsh_parser.c>
+File 5,1,<..\..\components\finsh\finsh_token.c><finsh_token.c>
+File 5,1,<..\..\components\finsh\finsh_var.c><finsh_var.c>
+File 5,1,<..\..\components\finsh\finsh_vm.c><finsh_vm.c>
+File 5,1,<..\..\components\finsh\shell.c><shell.c>
+File 5,1,<..\..\components\finsh\symbol.c><symbol.c>
 File 6,1,<..\..\components\net\lwip\src\api\api_lib.c><api_lib.c>
 File 6,1,<..\..\components\net\lwip\src\api\api_msg.c><api_msg.c>
 File 6,1,<..\..\components\net\lwip\src\api\err.c><err.c>
@@ -134,17 +119,30 @@ File 6,1,<..\..\components\net\lwip\src\netif\ppp\ppp.c><ppp.c>
 File 6,1,<..\..\components\net\lwip\src\netif\ppp\ppp_oe.c><ppp_oe.c>
 File 6,1,<..\..\components\net\lwip\src\netif\ppp\randm.c><randm.c>
 File 6,1,<..\..\components\net\lwip\src\netif\ppp\vj.c><vj.c>
-File 7,1,<.\application.c><application.c>
-File 7,1,<.\startup.c><startup.c>
-File 7,1,<.\board.c><board.c>
-File 7,1,<.\stm32f10x_it.c><stm32f10x_it.c>
-File 7,1,<.\rtc.c><rtc.c>
-File 7,1,<.\usart.c><usart.c>
-File 7,1,<.\led.c><led.c>
-File 7,1,<.\sdcard.c><sdcard.c>
-File 7,1,<.\enc28j60.c><enc28j60.c>
-
-
+File 7,1,<Libraries\CMSIS\Core\CM3\core_cm3.c><core_cm3.c>
+File 7,1,<Libraries\CMSIS\Core\CM3\system_stm32f10x.c><system_stm32f10x.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_crc.c><stm32f10x_crc.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_rcc.c><stm32f10x_rcc.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_wwdg.c><stm32f10x_wwdg.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_pwr.c><stm32f10x_pwr.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_exti.c><stm32f10x_exti.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_bkp.c><stm32f10x_bkp.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_i2c.c><stm32f10x_i2c.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_adc.c><stm32f10x_adc.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dac.c><stm32f10x_dac.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_rtc.c><stm32f10x_rtc.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_fsmc.c><stm32f10x_fsmc.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_tim.c><stm32f10x_tim.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_iwdg.c><stm32f10x_iwdg.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_spi.c><stm32f10x_spi.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_flash.c><stm32f10x_flash.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_sdio.c><stm32f10x_sdio.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_gpio.c><stm32f10x_gpio.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_usart.c><stm32f10x_usart.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dbgmcu.c><stm32f10x_dbgmcu.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dma.c><stm32f10x_dma.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_can.c><stm32f10x_can.c>
+File 7,1,<Libraries\STM32F10x_StdPeriph_Driver\src\misc.c><misc.c>
 
 
 Options 1,0,0  // Target 'RT-Thread STM32'
@@ -205,7 +203,7 @@ Options 1,0,0  // Target 'RT-Thread STM32'
  ADSCMISC ()
  ADSCDEFN (STM32F10X_HD, USE_STDPERIPH_DRIVER)
  ADSCUDEF ()
- ADSCINCD (Libraries\CMSIS\Core\CM3;Libraries\STM32F10x_StdPeriph_Driver\inc;..\..\components\dfs;..\..\components\finsh;..\..\components\net\lwip\src\include;.;..\..\components\net\lwip\src\include\ipv4;..\..\include;..\..\components\net\lwip\src\arch\include;..\..\components\dfs\include;..\..\components\net\lwip\src;..\..\components\net\lwip\src\netif\ppp;..\..\libcpu\arm\stm32;..\..\components\net\lwip\src\include\netif)
+ ADSCINCD (Libraries\CMSIS\Core\CM3;Libraries\STM32F10x_StdPeriph_Driver\inc;..\..\components\dfs;..\..\components\finsh;..\..\components\net\lwip\src\include;.;..\..\components\net\lwip\src\include\ipv4;..\..\include;..\..\components\net\lwip\src\arch\include;..\..\components\dfs\include;..\..\components\net\lwip\src;..\..\libcpu\arm\common;..\..\components\net\lwip\src\netif\ppp;..\..\libcpu\arm\stm32;..\..\components\net\lwip\src\include\netif)
  ADSASFLG { 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
  ADSAMISC ()
  ADSADEFN ()
diff --git a/bsp/stm3210/rtconfig.py b/bsp/stm3210/rtconfig.py
index 5887d97ca9..4050e7074c 100644
--- a/bsp/stm3210/rtconfig.py
+++ b/bsp/stm3210/rtconfig.py
@@ -1,47 +1,3 @@
-import SCons.cpp
-
-# component options
-
-# make all component false
-RT_USING_FINSH 		= False
-RT_USING_DFS 		= False
-RT_USING_DFS_ELMFAT 	= False
-RT_USING_DFS_YAFFS2	= False
-RT_USING_LWIP 		= False
-RT_USING_WEBSERVER	= False
-RT_USING_RTGUI 		= False
-
-# parse rtconfig.h to get used component
-PreProcessor = SCons.cpp.PreProcessor()
-f = file('rtconfig.h', 'r')
-contents = f.read()
-f.close()
-PreProcessor.process_contents(contents)
-rtconfig_ns = PreProcessor.cpp_namespace
-
-# finsh shell options
-if rtconfig_ns.has_key('RT_USING_FINSH'):
-	RT_USING_FINSH = True
-
-# device virtual filesystem options
-if rtconfig_ns.has_key('RT_USING_DFS'):
-    RT_USING_DFS = True
-
-    if rtconfig_ns.has_key('RT_USING_DFS_ELMFAT'):
-        RT_USING_DFS_ELMFAT = True
-    if rtconfig_ns.has_key('RT_USING_DFS_YAFFS2'):
-        RT_USING_DFS_YAFFS2 = True
-
-# lwip options
-if rtconfig_ns.has_key('RT_USING_LWIP'):
-    RT_USING_LWIP = True
-    if rtconfig_ns.has_key('RT_USING_WEBSERVER'):
-        RT_USING_WEBSERVER = True
-
-# rtgui options
-if rtconfig_ns.has_key('RT_USING_RTGUI'):
-    RT_USING_RTGUI = True
-
 # toolchains options
 ARCH='arm'
 CPU='stm32'
@@ -83,7 +39,6 @@ if PLATFORM == 'gcc':
     else:
         CFLAGS += ' -O2'
 
-    RT_USING_MINILIBC = True
     POST_ACTION = OBJCPY + ' -O binary $TARGET rtthread.bin\n' + SIZE + ' $TARGET \n'
 
 elif PLATFORM == 'armcc':
@@ -110,7 +65,6 @@ elif PLATFORM == 'armcc':
     else:
         CFLAGS += ' -O2'
 
-    RT_USING_MINILIBC = False
     POST_ACTION = 'fromelf --bin $TARGET --output rtthread.bin \nfromelf -z $TARGET'
 
 elif PLATFORM == 'iar':
@@ -128,5 +82,4 @@ elif PLATFORM == 'iar':
     LFLAGS = ' --config stm32f10x_flash.icf'
 
     EXEC_PATH += '/arm/bin/'
-    RT_USING_MINILIBC = False
     POST_ACTION = ''
diff --git a/components/SConscript b/components/SConscript
index bd6f6323ad..517e80b11f 100644
--- a/components/SConscript
+++ b/components/SConscript
@@ -1,36 +1,13 @@
-# for module compile 
-Import('env')
-Import('rtconfig')
+# for module compiling
+import os
+Import('RTT_ROOT')
 
-# build each components
-objs = ''
+objs = []
+list = os.listdir(os.path.join(RTT_ROOT, 'components'))
 
-if rtconfig.CROSS_TOOL == 'gcc':
-	if 'RT_USING_NEWLIB' in dir(rtconfig) and rtconfig.RT_USING_NEWLIB:
-		objs = objs + SConscript('libc/newlib/SConscript')
-	else:
-		rtconfig.RT_USING_MINILIBC = True
-		objs = objs + SConscript('libc/minilibc/SConscript')
-
-if 'RT_USING_PTHREAD' in dir(rtconfig) and rtconfig.RT_USING_PTHREAD:
-	objs = objs + SConscript('pthreads/SConscript')
-
-if 'RT_USING_FINSH' in dir(rtconfig) and rtconfig.RT_USING_FINSH:
-	objs = objs + SConscript('finsh/SConscript')
-
-if 'RT_USING_DFS' in dir(rtconfig) and rtconfig.RT_USING_DFS:
-	objs = objs + SConscript('dfs/SConscript')
-
-if 'RT_USING_LWIP' in dir(rtconfig) and rtconfig.RT_USING_LWIP:
-	objs = objs + SConscript('net/lwip/SConscript')
-
-if 'RT_USING_MODBUS' in dir(rtconfig) and rtconfig.RT_USING_MODBUS:
-	objs = objs + SConscript('net/freemodbus/SConscript')
-
-if 'RT_USING_RTGUI' in dir(rtconfig) and rtconfig.RT_USING_RTGUI:
-	objs = objs + SConscript('rtgui/SConscript')
-
-if 'RT_USING_FTK' in dir(rtconfig) and rtconfig.RT_USING_FTK:
-	objs = objs + SConscript('external/ftk/ftk/src/os/rt-thread/SConscript')
+for d in list:
+    path = os.path.join(RTT_ROOT, 'components', d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
 
 Return('objs')
diff --git a/components/dfs/SConscript b/components/dfs/SConscript
index 0eb0902636..bf1f76b52b 100644
--- a/components/dfs/SConscript
+++ b/components/dfs/SConscript
@@ -1,8 +1,8 @@
-Import('env')
-Import('rtconfig')
 Import('RTT_ROOT')
-Import('projects')
+Import('rtconfig')
+from building import *
 
+# The set of source files associated with this SConscript file.
 dfs = Split("""
 src/dfs.c
 src/dfs_fs.c
@@ -67,45 +67,27 @@ src_local = dfs
 # The set of source files associated with this SConscript file.
 path = [RTT_ROOT + '/components/dfs', RTT_ROOT + '/components/dfs/include']
 
-if 'RT_USING_DFS_YAFFS2' in dir(rtconfig) and rtconfig.RT_USING_DFS_YAFFS2:
+if GetDepend('RT_USING_DFS_YAFFS2'):
     src_local = src_local + yaffs2_main + yaffs2_comm
     path = path + [RTT_ROOT + '/components/dfs/filesystems/yaffs2', RTT_ROOT + '/components/dfs/filesystems/yaffs2/direct']
 
-if 'RT_DFS_ELM_USE_LFN' in dir(rtconfig) and rtconfig.RT_DFS_ELM_USE_LFN:
-    elmfat += ['filesystems/elmfat/option/cc936.c']
-
-if 'RT_USING_DFS_ELMFAT' in dir(rtconfig) and rtconfig.RT_USING_DFS_ELMFAT:
+if GetDepend('RT_USING_DFS_ELMFAT'):
+    if GetDepend('RT_DFS_ELM_USE_LFN'):
+        elmfat += ['filesystems/elmfat/option/cc936.c']
     src_local = src_local + elmfat
 
-if 'RT_USING_DFS_NFS' in dir(rtconfig) and rtconfig.RT_USING_DFS_NFS and rtconfig.RT_USING_LWIP:
+if GetDepend(['RT_USING_DFS_NFS', 'RT_USING_LWIP']):
     src_local = src_local + nfs
     path = path + [RTT_ROOT + '/components/dfs/filesystems/nfs']
 
-if 'RT_USING_DFS_ROMFS' in dir(rtconfig) and rtconfig.RT_USING_DFS_ROMFS:
+if GetDepend('RT_USING_DFS_ROMFS'):
     src_local = src_local + romfs
     path = path + [RTT_ROOT + '/components/dfs/filesystems/romfs']
 
-if 'RT_USING_DFS_DEVFS' in dir(rtconfig) and rtconfig.RT_USING_DFS_DEVFS:
+if GetDepend('RT_USING_DFS_DEVFS'):
     src_local = src_local + devfs
     path = path + [RTT_ROOT + '/components/dfs/filesystems/devfs']
 
-# group definitions
-group = {}
-group['name'] = 'Filesystem'
-group['src'] = File(src_local)
-group['CCFLAGS'] = ''
-group['CPPPATH'] = path
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
-
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-obj = env.Object(group['src'])
+group = DefineGroup('Filesystem', src_local, depend = ['RT_USING_DFS'], CPPPATH = path)
 
-Return('obj')
+Return('group')
diff --git a/components/dfs/src/dfs_posix.c b/components/dfs/src/dfs_posix.c
index f1c01605f9..6a3517e89d 100644
--- a/components/dfs/src/dfs_posix.c
+++ b/components/dfs/src/dfs_posix.c
@@ -282,7 +282,6 @@ int stat(const char *file, struct stat *buf)
  */
 int fstat(int fildes, struct stat *buf)
 {
-	int result;
 	struct dfs_fd* d;
 
 	/* get the fd */
diff --git a/components/finsh/SConscript b/components/finsh/SConscript
index 5b6e9b1278..9c5bd0c37e 100644
--- a/components/finsh/SConscript
+++ b/components/finsh/SConscript
@@ -1,28 +1,14 @@
-Import('env')
-Import('projects')
 Import('RTT_ROOT')
 Import('rtconfig')
+from building import *
 
-# group definitions
-group = {}
-group['name'] = 'finsh'
-group['src'] = Glob('*.c')
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/components/finsh']
-group['CPPDEFINES'] = ''
+src	= Glob('*.c')
+CPPPATH = [RTT_ROOT + '/components/finsh']
 if rtconfig.CROSS_TOOL == 'keil':
-    group['LINKFLAGS'] = ' --keep __fsym_* --keep __vsym_*'
+    LINKFLAGS = ' --keep __fsym_* --keep __vsym_*'
 else:
-    group['LINKFLAGS'] = ''
+    LINKFLAGS = ''
 
-# add group to project list
-projects.append(group)
+group = DefineGroup('finsh', src, depend = ['RT_USING_FINSH'], CPPPATH = CPPPATH, LINKFLAGS = LINKFLAGS)
 
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-objs = env.Object(group['src'])
-
-Return('objs')
+Return('group')
diff --git a/components/libc/minilibc/SConscript b/components/libc/minilibc/SConscript
index 70122c43df..8eb7e0b58e 100644
--- a/components/libc/minilibc/SConscript
+++ b/components/libc/minilibc/SConscript
@@ -1,10 +1,8 @@
-Import('env')
 Import('RTT_ROOT')
+from building import *
 
-# The set of source files associated with this SConscript file.
-src_local = Glob('*.c')
+src	= Glob('*.c')
+CPPPATH = [RTT_ROOT + '/components/libc/minilibc']
+group = DefineGroup('minilibc', src, depend = ['RT_USING_MINILIBC'], CPPPATH = CPPPATH)
 
-env.Append(CPPPATH = RTT_ROOT + '/components/libc/minilibc', CPPDEFINES='RT_USING_MINILIBC')
-
-obj = env.Object(src_local)
-Return('obj')
+Return('group')
diff --git a/components/libc/newlib/SConscript b/components/libc/newlib/SConscript
index 2de094db01..d8ce850d0f 100644
--- a/components/libc/newlib/SConscript
+++ b/components/libc/newlib/SConscript
@@ -1,10 +1,8 @@
-Import('env')
 Import('RTT_ROOT')
+from building import *
 
-# The set of source files associated with this SConscript file.
-src_local = Glob('*.c')
+src	= Glob('*.c')
+CPPPATH = [RTT_ROOT + '/components/libc/newlib']
+group = DefineGroup('newlib', src, depend = ['RT_USING_NEWLIB'], CPPPATH = CPPPATH)
 
-env.Append(CPPPATH = RTT_ROOT + '/components/libc/newlib')
-
-obj = env.Object(src_local)
-Return('obj')
+Return('group')
diff --git a/components/libc/newlib/syscalls.c b/components/libc/newlib/syscalls.c
index 39bdeecfaa..6b040822ab 100644
--- a/components/libc/newlib/syscalls.c
+++ b/components/libc/newlib/syscalls.c
@@ -201,12 +201,14 @@ _free_r (struct _reent *ptr, void *addr)
 	rt_free (addr);
 }
 
+#if 0
 void __assert(const char *file, int line, const char *failedexpr)
 {
     rt_kprintf("assertion \"%s\" failed: file \"%s\", line %d\n",
                failedexpr, file, line);
     RT_ASSERT(0);
 }
+#endif
 
 void
 _exit (int status)
diff --git a/components/libdl/SConscript b/components/libdl/SConscript
index df7c8814ca..dbd5bcea32 100644
--- a/components/libdl/SConscript
+++ b/components/libdl/SConscript
@@ -1,26 +1,9 @@
-Import('env')
-Import('projects')
 Import('RTT_ROOT')
 Import('rtconfig')
+from building import *
 
-# group definitions
-group = {}
-group['name'] = 'libdl'
-group['src'] = Glob('*.c')
-group['depend'] = 'RT_USING_LIBDL'
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/components/libdl']
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
+src	= Glob('*.c')
+CPPPATH = [RTT_ROOT + '/components/libdl']
+group = DefineGroup('libdl', src, depend = ['RT_USING_MODULE', 'RT_USING_LIBDL'], CPPPATH = CPPPATH)
 
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-objs = env.Object(group['src'])
-
-Return('objs')
+Return('group')
diff --git a/components/net/apps/SConscript b/components/net/apps/SConscript
index b0e7fb2716..a0822b53fa 100644
--- a/components/net/apps/SConscript
+++ b/components/net/apps/SConscript
@@ -1,10 +1,7 @@
-Import('env')
-Import('rtconfig')
 Import('RTT_ROOT')
+from building import *
 
-# The set of source files associated with this SConscript file.
-src_local = Glob('*.c')
+src   = Glob('*.c')
+group = DefineGroup('netutils', src, depend = ['RT_USING_NETUTILS'])
 
-obj = env.Object(src_local)
-
-Return('obj')
-\ No newline at end of file
+Return('group')
diff --git a/components/net/freemodbus/SConscript b/components/net/freemodbus/SConscript
index 61e254bb2b..588f31b458 100644
--- a/components/net/freemodbus/SConscript
+++ b/components/net/freemodbus/SConscript
@@ -1,9 +1,7 @@
-Import('env')
-Import('rtconfig')
 Import('RTT_ROOT')
-Import('projects')
+from building import *
 
-src_local = Split("""
+src = Split("""
 modbus/mb.c
 modbus/mbmaster.c
 modbus/ascii/mbascii.c
@@ -30,23 +28,6 @@ path = [RTT_ROOT + '/components/net/freemodbus/modbus/include',
 	RTT_ROOT + '/components/net/freemodbus/modbus/rtu', 
 	RTT_ROOT + '/components/net/freemodbus/modbus/ascii']
 
-# group definitions
-group = {}
-group['name'] = 'FreeModBus'
-group['src'] = File(src_local)
-group['CCFLAGS'] = ''
-group['CPPPATH'] = path
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
+group = DefineGroup('FreeModbus', src, depend = ['RT_USING_FREEMODBUS'], CPPPATH = path)
 
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-objs = env.Object(group['src'])
-
-Return('objs')
+Return('group')
diff --git a/components/net/lwip/SConscript b/components/net/lwip/SConscript
index 3f0197fd9d..496b915f01 100644
--- a/components/net/lwip/SConscript
+++ b/components/net/lwip/SConscript
@@ -1,9 +1,7 @@
-Import('env')
-Import('rtconfig')
 Import('RTT_ROOT')
-Import('projects')
+from building import *
 
-src_local = Split("""
+src = Split("""
 src/api/api_lib.c
 src/api/api_msg.c
 src/api/err.c
@@ -68,23 +66,6 @@ path = [RTT_ROOT + '/components/net/lwip/src',
     RTT_ROOT + '/components/net/lwip/src/include/netif', 
     RTT_ROOT + '/components/net/lwip/src/netif/ppp']
 
-# group definitions
-group = {}
-group['name'] = 'LwIP'
-group['src'] = File(src_local)
-group['CCFLAGS'] = ''
-group['CPPPATH'] = path
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
+group = DefineGroup('LwIP', src, depend = ['RT_USING_LWIP'], CPPPATH = path)
 
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-obj = env.Object(group['src'])
-
-Return('obj')
+Return('group')
diff --git a/components/pthreads/SConscript b/components/pthreads/SConscript
index 8dc41edc0d..9fe796d225 100644
--- a/components/pthreads/SConscript
+++ b/components/pthreads/SConscript
@@ -1,26 +1,8 @@
-Import('env')
-Import('projects')
 Import('RTT_ROOT')
-Import('rtconfig')
+from building import *
 
-# group definitions
-group = {}
-group['name'] = 'pthreads'
-group['src'] = Glob('*.c')
-group['depend'] = 'RT_USING_PTHREAD'
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/components/pthreads']
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
+src	= Glob('*.c')
+CPPPATH = [RTT_ROOT + '/components/pthreads']
+group = DefineGroup('pthreads', src, depend = ['RT_USING_PTHREADS'], CPPPATH = CPPPATH)
 
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-objs = env.Object(group['src'])
-
-Return('objs')
+Return('group')
diff --git a/components/rtgui/SConscript b/components/rtgui/SConscript
index 88da95fdca..625771459b 100644
--- a/components/rtgui/SConscript
+++ b/components/rtgui/SConscript
@@ -1,7 +1,5 @@
-Import('env')
-Import('rtconfig')
 Import('RTT_ROOT')
-Import('projects')
+from building import *
 
 common_src = Split("""
 common/blit.c
@@ -63,30 +61,12 @@ widgets/workbench.c
 """)
 
 # The set of source files associated with this SConscript file.
-src_local = common_src + server_src + widgets_src
+src = common_src + server_src + widgets_src
 
 path = [RTT_ROOT + '/components/rtgui/include',
 	RTT_ROOT + '/components/rgtui/common', 
 	RTT_ROOT + '/components/rtgui/server', 
 	RTT_ROOT + '/components/rtgui/widgets']
+group = DefineGroup('RTGUI', src, depend = ['RT_USING_RTGUI'], CPPPATH = path)
 
-# group definitions
-group = {}
-group['name'] = 'GUI'
-group['src'] = File(src_local)
-group['CCFLAGS'] = ''
-group['CPPPATH'] = path
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
-
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-objs = env.Object(group['src'])
-
-Return('objs')
+Return('group')
diff --git a/components/usb/SConscript b/components/usb/SConscript
index 0acf9f2305..5199a9bdd4 100644
--- a/components/usb/SConscript
+++ b/components/usb/SConscript
@@ -1,26 +1,8 @@
-Import('env')
-Import('projects')
 Import('RTT_ROOT')
-Import('rtconfig')
+from building import *
 
-# group definitions
-group = {}
-group['name'] = 'USB'
-group['src'] = Glob('*.c')
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/components/usb']
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
-group['DEPEND'] = 'RT_USING_USB'
+src	= Glob('*.c')
+CPPPATH = [RTT_ROOT + '/components/usb']
+group = DefineGroup('USB', src, depend = ['RT_USING_USB_DEVICE'], CPPPATH = CPPPATH)
 
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-objs = env.Object(group['src'])
-
-Return('objs')
+Return('group')
diff --git a/examples/gui/SConscript b/examples/gui/SConscript
index babecec5b7..39c967123d 100644
--- a/examples/gui/SConscript
+++ b/examples/gui/SConscript
@@ -1,5 +1,4 @@
-Import('env')
-Import('projects')
+from building import *
 
 src = Split("""
 demo_view_dc_buffer.c
@@ -32,22 +31,6 @@ gui_init.c
 mywidget.c
 """)
 
-group = {}
-group['name'] = 'GUI demo'
-group['src'] = File(src)
-group['CCFLAGS'] = ''
-group['CPPPATH'] = ['']
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
+group = DefineGroup('gui_examples', src, depend = ['RTGUI_USING_EXAMPLES'])
 
-# add group to project list
-projects.append(group)
-
-env.Append(CCFLAGS = group['CCFLAGS'])
-env.Append(CPPPATH = group['CPPPATH'])
-env.Append(CPPDEFINES = group['CPPDEFINES'])
-env.Append(LINKFLAGS = group['LINKFLAGS'])
-
-objs = env.Object(group['src'])
-
-Return('objs')
+Return('group')
diff --git a/examples/kernel/SConscript b/examples/kernel/SConscript
index 7ecb22c991..3e620ae8c1 100644
--- a/examples/kernel/SConscript
+++ b/examples/kernel/SConscript
@@ -1,6 +1,6 @@
-Import('env')
+from building import *
 
-src_local = Split("""
+src = Split("""
 tc_comm.c
 thread_static.c
 thread_dynamic.c
@@ -32,8 +32,6 @@ heap_realloc.c
 memp_simple.c
 """)
 
-# The set of source files associated with this SConscript file.
-obj = env.Object(src_local)
-env.Append(CPPDEFINES='RT_USING_TC')
+group = DefineGroup('examples', src, depend = ['RT_USING_TC'])
 
-Return('obj')
+Return('group')
diff --git a/examples/libc/SConscript b/examples/libc/SConscript
index af43df3ddb..6112f8b3c0 100644
--- a/examples/libc/SConscript
+++ b/examples/libc/SConscript
@@ -1,8 +1,6 @@
-Import('env')
+from building import *
 
-src_local = Glob('*.c')
+src   = Glob('*.c')
+group = DefineGroup('libc_test', src, depend = ['RT_USING_NEWLIB', 'RT_USING_PTHREADS', 'RT_USING_LIBC_TEST'])
 
-# The set of source files associated with this SConscript file.
-obj = env.Object(src_local)
-
-Return('obj')
+Return('group')
diff --git a/libcpu/SConscript b/libcpu/SConscript
index bd854aa5f7..9b5d30e046 100644
--- a/libcpu/SConscript
+++ b/libcpu/SConscript
@@ -1,34 +1,21 @@
-Import('env')
-Import('rtconfig')
 Import('RTT_ROOT')
-Import('projects')
+Import('rtconfig')
+from building import *
 
 comm = rtconfig.ARCH + '/common'
 path = rtconfig.ARCH + '/' + rtconfig.CPU
 
 # The set of source files associated with this SConscript file.
 if rtconfig.PLATFORM == 'armcc':
-	src_local = Glob(path + '/*.c') + Glob(path + '/*_rvds.S') + Glob(comm + '/*.c')
+	src = Glob(path + '/*.c') + Glob(path + '/*_rvds.S') + Glob(comm + '/*.c')
 
 if rtconfig.PLATFORM == 'gcc':
-	src_local = Glob(path + '/*.c') + Glob(path + '/*_gcc.S') + Glob(comm + '/*.c') + Glob(path + '/*_init.S')
+	src = Glob(path + '/*.c') + Glob(path + '/*_gcc.S') + Glob(comm + '/*.c') + Glob(path + '/*_init.S')
 
 if rtconfig.PLATFORM == 'iar':
-	src_local = Glob(path + '/*.c') + Glob(path + '/*_iar.S') + Glob(comm + '/*.c')
-
-# group definitions
-group = {}
-group['name'] = rtconfig.CPU.upper()
-group['src'] = File(src_local)
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/libcpu/' + rtconfig.ARCH + '/' + rtconfig.CPU, RTT_ROOT + '/libcpu/' + rtconfig.ARCH + '/common']
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
-
-# add group to project list
-projects.append(group)
+	src = Glob(path + '/*.c') + Glob(path + '/*_iar.S') + Glob(comm + '/*.c')
 
-env.Append(CPPPATH = group['CPPPATH'])
-obj = env.Object(group['src'])
+CPPPATH = [RTT_ROOT + '/libcpu/' + rtconfig.ARCH + '/' + rtconfig.CPU, RTT_ROOT + '/libcpu/' + rtconfig.ARCH + '/common']
+group = DefineGroup(rtconfig.CPU.upper(), src, depend = [''], CPPPATH = CPPPATH)
 
-Return('obj')
+Return('group')
diff --git a/src/SConscript b/src/SConscript
index bff1aef271..c9ae828f9c 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -1,23 +1,8 @@
-Import('env')
 Import('RTT_ROOT')
-Import('projects')
+from building import *
 
-# The set of source files associated with this SConscript file.
-src_local = Glob('*.c')
+src     = Glob('*.c')
+CPPPATH = [RTT_ROOT + '/include']
+group   = DefineGroup('Kernel', src, depend = [''], CPPPATH = CPPPATH)
 
-# group definitions
-group = {}
-group['name'] = 'Kernel'
-group['src'] = File(src_local)
-group['CCFLAGS'] = ''
-group['CPPPATH'] = [RTT_ROOT + '/include']
-group['CPPDEFINES'] = ''
-group['LINKFLAGS'] = ''
-
-# add group to project list
-projects.append(group)
-
-env.Append(CPPPATH = group['CPPPATH'])
-obj = env.Object(group['src'])
-
-Return('obj')
+Return('group')
diff --git a/src/ipc.c b/src/ipc.c
index 15a2f99b2f..a8cdb42e85 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -453,7 +453,11 @@ rt_err_t rt_sem_control(rt_sem_t sem, rt_uint8_t cmd, void* arg)
 	RT_ASSERT(sem != RT_NULL);
 
 	if (cmd == RT_IPC_CMD_RESET)
-	{
+	{
+		rt_uint32_t value;
+
+		/* get value */
+		value = (rt_uint32_t)arg;		
 		/* disable interrupt */
 		level = rt_hw_interrupt_disable();
 
@@ -461,7 +465,7 @@ rt_err_t rt_sem_control(rt_sem_t sem, rt_uint8_t cmd, void* arg)
 		rt_ipc_object_resume_all(&sem->parent);
 
 		/* set new value */
-		sem->value = (rt_uint16_t)arg;
+		sem->value = (rt_uint16_t)value;
 
 		/* enable interrupt */
 		rt_hw_interrupt_enable(level);
diff --git a/tools/building.py b/tools/building.py
new file mode 100644
index 0000000000..cb05ba0b69
--- /dev/null
+++ b/tools/building.py
@@ -0,0 +1,334 @@
+import os
+import string
+from SCons.Script import *
+
+BuildOptions = {}
+Projects = []
+Rtt_Root = ''
+Env = None
+
+def _get_filetype(fn):
+    if fn.rfind('.c') != -1 or fn.rfind('.C') != -1 or fn.rfind('.cpp') != -1:
+        return 1
+
+    # assimble file type
+    if fn.rfind('.s') != -1 or fn.rfind('.S') != -1:
+        return 2
+
+    # header type
+    if fn.rfind('.h') != -1:
+        return 5
+
+    # other filetype
+    return 5
+
+def splitall(loc):
+    """
+    Return a list of the path components in loc. (Used by relpath_).
+
+    The first item in the list will be  either ``os.curdir``, ``os.pardir``, empty,
+    or the root directory of loc (for example, ``/`` or ``C:\\).
+
+    The other items in the list will be strings.
+
+    Adapted from *path.py* by Jason Orendorff.
+    """
+    parts = []
+    while loc != os.curdir and loc != os.pardir:
+        prev = loc
+        loc, child = os.path.split(prev)
+        if loc == prev:
+            break
+        parts.append(child)
+    parts.append(loc)
+    parts.reverse()
+    return parts
+
+def _make_path_relative(origin, dest):
+    """
+    Return the relative path between origin and dest.
+
+    If it's not possible return dest.
+
+
+    If they are identical return ``os.curdir``
+
+    Adapted from `path.py <http://www.jorendorff.com/articles/python/path/>`_ by Jason Orendorff.
+    """
+    origin = os.path.abspath(origin).replace('\\', '/')
+    dest = os.path.abspath(dest).replace('\\', '/')
+    #
+    orig_list = splitall(os.path.normcase(origin))
+    # Don't normcase dest!  We want to preserve the case.
+    dest_list = splitall(dest)
+    #
+    if orig_list[0] != os.path.normcase(dest_list[0]):
+        # Can't get here from there.
+        return dest
+    #
+    # Find the location where the two paths start to differ.
+    i = 0
+    for start_seg, dest_seg in zip(orig_list, dest_list):
+        if start_seg != os.path.normcase(dest_seg):
+            break
+        i += 1
+    #
+    # Now i is the point where the two paths diverge.
+    # Need a certain number of "os.pardir"s to work up
+    # from the origin to the point of divergence.
+    segments = [os.pardir] * (len(orig_list) - i)
+    # Need to add the diverging part of dest_list.
+    segments += dest_list[i:]
+    if len(segments) == 0:
+        # If they happen to be identical, use os.curdir.
+        return os.curdir
+    else:
+        # return os.path.join(*segments).replace('\\', '/')
+        return os.path.join(*segments)
+
+def MDKProject(target, script):
+    template = file('template.uV2', "rb")
+    lines = template.readlines()
+
+    project = file(target, "wb")
+    project_path = os.path.dirname(os.path.abspath(target))
+
+    line_index = 5
+    # write group
+    for group in script:
+        lines.insert(line_index, 'Group (%s)\r\n' % group['name'])
+        line_index += 1
+
+    lines.insert(line_index, '\r\n')
+    line_index += 1
+
+    # write file
+
+    CPPPATH = []
+    CPPDEFINES = []
+    LINKFLAGS = ''
+    CCFLAGS = ''
+
+    # number of groups
+    group_index = 1
+    for group in script:
+        # print group['name']
+
+        # get each include path
+        if group.has_key('CPPPATH') and group['CPPPATH']:
+            if CPPPATH:
+                CPPPATH += group['CPPPATH']
+            else:
+                CPPPATH += group['CPPPATH']
+
+        # get each group's definitions
+        if group.has_key('CPPDEFINES') and group['CPPDEFINES']:
+            if CPPDEFINES:
+                CPPDEFINES += ';' + group['CPPDEFINES']
+            else:
+                CPPDEFINES += group['CPPDEFINES']
+
+        # get each group's link flags
+        if group.has_key('LINKFLAGS') and group['LINKFLAGS']:
+            if LINKFLAGS:
+                LINKFLAGS += ' ' + group['LINKFLAGS']
+            else:
+                LINKFLAGS += group['LINKFLAGS']
+
+        # generate file items
+        for node in group['src']:
+            fn = node.rfile()
+            name = fn.name
+            path = os.path.dirname(fn.abspath)
+            path = _make_path_relative(project_path, path)
+            path = os.path.join(path, name)
+            lines.insert(line_index, 'File %d,%d,<%s><%s>\r\n'
+                % (group_index, _get_filetype(name), path, name))
+            line_index += 1
+
+        group_index = group_index + 1
+
+    lines.insert(line_index, '\r\n')
+    line_index += 1
+
+    # remove repeat path
+    paths = set()
+    for path in CPPPATH:
+        inc = _make_path_relative(project_path, os.path.normpath(path))
+        paths.add(inc) #.replace('\\', '/')
+
+    paths = [i for i in paths]
+    CPPPATH = string.join(paths, ';')
+
+    definitions = [i for i in set(CPPDEFINES)]
+    CPPDEFINES = string.join(definitions, ', ')
+
+    while line_index < len(lines):
+        if lines[line_index].startswith(' ADSCINCD '):
+            lines[line_index] = ' ADSCINCD (' + CPPPATH + ')\r\n'
+
+        if lines[line_index].startswith(' ADSLDMC ('):
+            lines[line_index] = ' ADSLDMC (' + LINKFLAGS + ')\r\n'
+
+        if lines[line_index].startswith(' ADSCDEFN ('):
+            lines[line_index] = ' ADSCDEFN (' + CPPDEFINES + ')\r\n'
+
+        line_index += 1
+
+    # write project
+    for line in lines:
+        project.write(line)
+
+    project.close()
+
+def BuilderProject(target, script):
+    project = file(target, "wb")
+    project_path = os.path.dirname(os.path.abspath(target))
+
+    # write file
+
+    CPPPATH = []
+    CPPDEFINES = []
+    LINKFLAGS = ''
+    CCFLAGS = ''
+
+    # number of groups
+    group_index = 1
+    for group in script:
+        # print group['name']
+
+        # generate file items
+        for node in group['src']:
+            fn = node.rfile()
+            name = fn.name
+            path = os.path.dirname(fn.abspath)
+            path = _make_path_relative(project_path, path)
+            path = os.path.join(path, name)
+            project.write('%s\r\n' % path)
+
+        group_index = group_index + 1
+
+    project.close()
+
+class Win32Spawn:
+    def spawn(self, sh, escape, cmd, args, env):
+        import subprocess
+
+        newargs = string.join(args[1:], ' ')
+        cmdline = cmd + " " + newargs
+        startupinfo = subprocess.STARTUPINFO()
+        startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+        proc = subprocess.Popen(cmdline, stdin=subprocess.PIPE, stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE, startupinfo=startupinfo, shell = False)
+        data, err = proc.communicate()
+        rv = proc.wait()
+        if rv:
+            print "====="
+            print err
+            print "====="
+        return rv
+
+def PrepareBuilding(env, root_directory):
+    import SCons.cpp
+    import rtconfig
+
+    global BuildOptions
+    global Projects
+    global Env
+    global Rtt_Root
+
+    Env = env
+    Rtt_Root = root_directory
+
+    # patch for win32 spawn
+    if env['PLATFORM'] == 'win32' and rtconfig.PLATFORM == 'gcc':
+        win32_spawn = Win32Spawn()
+        win32_spawn.env = env
+        env['SPAWN'] = win32_spawn.spawn
+
+    # add program path 
+    env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+
+    # parse rtconfig.h to get used component
+    PreProcessor = SCons.cpp.PreProcessor()
+    f = file('rtconfig.h', 'r')
+    contents = f.read()
+    f.close()
+    PreProcessor.process_contents(contents)
+    BuildOptions = PreProcessor.cpp_namespace
+
+    if (GetDepend('RT_USING_NEWLIB') == False) and rtconfig.PLATFORM == 'gcc':
+        AddDepend('RT_USING_MINILIBC')
+
+    # add target option
+    AddOption('--target',
+                      dest='target',
+                      type='string',
+                      help='set target project: mdk')
+
+    if GetOption('target'):
+        SetOption('no_exec', 1)
+
+    # board build script
+    objs = SConscript('SConscript', variant_dir='bsp', duplicate=0)
+    Repository(Rtt_Root)
+    # include kernel
+    objs.append(SConscript('src/SConscript'))
+    # include libcpu
+    objs.append(SConscript('libcpu/SConscript'))
+    # include components
+    objs.append(SConscript('components/SConscript'))
+
+    return objs
+
+def GetDepend(depend):
+    building = True
+    if type(depend) == type('str'):
+        if not BuildOptions.has_key(depend):
+            building = False
+
+        return building
+    
+    # for list type depend 
+    for item in depend:
+        if item != '':
+            if not BuildOptions.has_key(item):
+                building = False
+
+    return building 
+
+def AddDepend(option):
+    BuildOptions[option] = 1
+
+def DefineGroup(name, src, depend, **parameters):
+    global Env
+    if not GetDepend(depend):
+        return []
+
+    group = parameters
+    group['name'] = name
+    if type(src) == type(['src1', 'str2']):
+        group['src'] = File(src)
+    else:
+        group['src'] = src
+
+    Projects.append(group)
+
+    if group.has_key('CCFLAGS'):
+        Env.Append(CCFLAGS = group['CCFLAGS'])
+    if group.has_key('CPPPATH'):
+        Env.Append(CPPPATH = group['CPPPATH'])
+    if group.has_key('CPPDEFINES'):
+        Env.Append(CPPDEFINES = group['CPPDEFINES'])
+    if group.has_key('LINKFLAGS'):
+        Env.Append(LINKFLAGS = group['LINKFLAGS'])
+
+    objs = Env.Object(group['src'])
+    return objs
+
+def EndBuilding(target):
+    import rtconfig
+    Env.AddPostAction(target, rtconfig.POST_ACTION)
+
+    if GetOption('target') == 'mdk':
+        MDKProject('project.uV2', Projects)
author	[email protected] <[email protected]>	2010-11-20 12:31:00 +0000
committer	[email protected] <[email protected]>	2010-11-20 12:31:00 +0000
commit	10732a76e9a3bf1ead47cf9848c6838236e4e343 (patch)
tree	7475b1f6ff77e80bd357fc551de80565c9486080
parent	2fce1a91e2577f06b68151dffa15558750346d02 (diff)