2 # This script includes generic build options:
3 # release/debug, target os, target arch, cross toolchain, build environment etc
8 # Map of host os and allowed target os (host: allowed target os)
10 'linux': ['linux', 'android', 'arduino', 'yocto', 'tizen'],
11 'windows': ['windows', 'winrt', 'android', 'arduino'],
12 'darwin': ['darwin', 'ios', 'android', 'arduino'],
15 # Map of os and allowed archs (os: allowed archs)
17 'linux': ['x86', 'x86_64', 'arm', 'arm64'],
18 'tizen': ['x86', 'x86_64', 'arm', 'arm64'],
19 'android': ['x86', 'x86_64', 'armeabi', 'armeabi-v7a', 'armeabi-v7a-hard', 'arm64-v8a'],
20 'windows': ['x86', 'amd64', 'arm'],
22 'darwin': ['i386', 'x86_64'],
23 'ios': ['i386', 'x86_64', 'armv7', 'armv7s', 'arm64'],
24 'arduino': ['avr', 'arm'],
25 'yocto': ['x86', 'x86_64'],
28 host = platform.system().lower()
30 if not host_target_map.has_key(host):
31 print "\nError: Current system (%s) isn't supported\n" % host
34 ######################################################################
35 # Get build options (the optins from command line)
36 ######################################################################
37 target_os = ARGUMENTS.get('TARGET_OS', host).lower() # target os
39 if target_os not in host_target_map[host]:
40 print "\nError: Unknown target os: %s (Allow values: %s)\n" % (target_os, host_target_map[host])
43 default_arch = platform.machine()
44 if default_arch not in os_arch_map[target_os]:
45 default_arch = os_arch_map[target_os][0].lower()
47 target_arch = ARGUMENTS.get('TARGET_ARCH', default_arch) # target arch
49 # True if binary needs to be installed on board. (Might need root permissions)
50 # set to 'no', 'false' or 0 for only compilation
51 require_upload = ARGUMENTS.get('UPLOAD', False)
53 ######################################################################
54 # Common build options (release, target os, target arch)
55 ######################################################################
56 targets_disallow_multitransport = ['arduino']
58 help_vars = Variables()
59 help_vars.Add(BoolVariable('RELEASE', 'Build for release?', True)) # set to 'no', 'false' or 0 for debug
60 help_vars.Add(EnumVariable('TARGET_OS', 'Target platform', host, host_target_map[host]))
62 if target_os in targets_disallow_multitransport:
63 help_vars.Add(ListVariable('TARGET_TRANSPORT', 'Target transport', 'ETHERNET', ['WIFI', 'BT', 'BLE', 'ETHERNET']))
65 help_vars.Add(ListVariable('TARGET_TRANSPORT', 'Target transport', 'ALL', ['ALL', 'WIFI', 'BT', 'BLE', 'ETHERNET']))
67 help_vars.Add(EnumVariable('TARGET_ARCH', 'Target architecture', default_arch, os_arch_map[target_os]))
68 help_vars.Add(EnumVariable('SECURED', 'Build with DTLS', '0', allowed_values=('0', '1')))
69 help_vars.Add(EnumVariable('TEST', 'Run unit tests', '0', allowed_values=('0', '1')))
70 help_vars.Add(BoolVariable('UPLOAD', 'Upload binary ? (For Arduino)', require_upload))
71 help_vars.Add(EnumVariable('BUILD_SAMPLE', 'Build with sample', 'ON', allowed_values=('ON', 'OFF')))
72 ######################################################################
73 # Platform(build target) specific options: SDK/NDK & toolchain
74 ######################################################################
75 targets_support_cc = ['linux', 'arduino', 'tizen']
77 if target_os in targets_support_cc:
78 # Set cross compile toolchain
79 help_vars.Add('TC_PREFIX', "Toolchain prefix (Generally only be required for cross-compiling)", os.environ.get('TC_PREFIX'))
80 help_vars.Add(PathVariable('TC_PATH',
81 'Toolchain path (Generally only be required for cross-compiling)',
82 os.environ.get('TC_PATH')))
84 if target_os in ['android', 'arduino']: # Android/Arduino always uses GNU compiler regardless of the host
85 env = Environment(variables = help_vars,
86 tools = ['gnulink', 'gcc', 'g++', 'ar', 'as']
89 env = Environment(variables = help_vars, TARGET_ARCH = target_arch, TARGET_OS = target_os)
91 Help(help_vars.GenerateHelpText(env))
94 ************************************ Warning **********************************
95 * Enviornment variable TC_PREFIX/TC_PATH is set. It will change the default *
96 * toolchain, if it isn't what you expect you should unset it, otherwise it may*
97 * cause inexplicable errors. *
98 *******************************************************************************
101 if target_os in targets_support_cc:
102 prefix = env.get('TC_PREFIX')
103 tc_path = env.get('TC_PATH')
105 env.Replace(CC = prefix + 'gcc')
106 env.Replace(CXX = prefix + 'g++')
107 env.Replace(AR = prefix + 'ar')
108 env.Replace(AS = prefix + 'as')
109 env.Replace(LINK = prefix + 'ld')
110 env.Replace(RANLIB = prefix + 'ranlib')
113 env.PrependENVPath('PATH', tc_path)
114 sys_root = os.path.abspath(tc_path + '/../')
115 env.AppendUnique(CCFLAGS = ['--sysroot=' + sys_root])
116 env.AppendUnique(LINKFLAGS = ['--sysroot=' + sys_root])
118 if prefix or tc_path:
121 # Ensure scons be able to change its working directory
122 env.SConscriptChdir(1)
124 # Set the source directory and build directory
125 # Source directory: 'dir'
126 # Build directory: 'dir'/out/<target_os>/<target_arch>/<release or debug>/
128 # You can get the directory as following:
130 # env.get('BUILD_DIR')
132 def __set_dir(env, dir):
133 if not os.path.exists(dir + '/SConstruct'):
135 *************************************** Error *********************************
136 * The directory(%s) seems isn't a source code directory, no SConstruct file is
138 *******************************************************************************
142 if env.get('RELEASE'):
143 build_dir = dir + '/out/' + target_os + '/' + target_arch + '/release/'
145 build_dir = dir + '/out/' + target_os + '/' + target_arch + '/debug/'
146 env.VariantDir(build_dir, dir, duplicate=0)
148 env.Replace(BUILD_DIR = build_dir)
149 env.Replace(SRC_DIR = dir)
151 def __src_to_obj(env, src, home = ''):
152 obj = env.get('BUILD_DIR') + src.replace(home, '')
153 if env.get('OBJSUFFIX'):
154 obj += env.get('OBJSUFFIX')
155 return env.Object(obj, src)
157 def __install(ienv, targets, name):
158 i_n = ienv.Install(env.get('BUILD_DIR'), targets)
160 env.AppendUnique(TS = [name])
162 def __append_target(ienv, target):
163 env.AppendUnique(TS = [target])
165 def __print_targets(env):
167 ===============================================================================
169 for t in env.get('TS'):
172 \nDefault all targets will be built. You can specify the target to build:
174 $ scons [options] [target]
175 ===============================================================================
178 env.AddMethod(__set_dir, 'SetDir')
179 env.AddMethod(__print_targets, 'PrintTargets')
180 env.AddMethod(__src_to_obj, 'SrcToObj')
181 env.AddMethod(__append_target, 'AppendTarget')
182 env.AddMethod(__install, 'InstallTarget')
183 env.SetDir(env.GetLaunchDir())
184 env['ROOT_DIR']=env.GetLaunchDir()+'/..'
188 ######################################################################
189 # Link scons to Yocto cross-toolchain ONLY when target_os is yocto
190 ######################################################################
191 if target_os == "yocto":
193 This code injects Yocto cross-compilation tools+flags into scons'
194 build environment in order to invoke the relevant tools while
199 CC = os.environ['CC']
200 target_prefix = CC.split()[0]
201 target_prefix = target_prefix[:len(target_prefix)-3]
202 tools = {"CC" : target_prefix+"gcc",
203 "CXX" : target_prefix+"g++",
204 "AS" : target_prefix+"as",
205 "LD" : target_prefix+"ld",
206 "GDB" : target_prefix+"gdb",
207 "STRIP" : target_prefix+"strip",
208 "RANLIB" : target_prefix+"ranlib",
209 "OBJCOPY" : target_prefix+"objcopy",
210 "OBJDUMP" : target_prefix+"objdump",
211 "AR" : target_prefix+"ar",
212 "NM" : target_prefix+"nm",
214 "STRINGS": target_prefix+"strings"}
215 PATH = os.environ['PATH'].split(os.pathsep)
217 if tool in os.environ:
219 if os.path.isfile(os.path.join(path, tools[tool])):
220 env[tool] = os.path.join(path, os.environ[tool])
223 print "ERROR in Yocto cross-toolchain environment"
226 Now reset TARGET_OS to linux so that all linux specific build configurations
227 hereupon apply for the entirety of the build process.
229 env['TARGET_OS'] = 'linux'
231 We want to preserve debug symbols to allow BitBake to generate both DEBUG and
232 RELEASE packages for OIC.
234 env['CCFLAGS'].append('-g')
238 If target_os is not Yocto, continue with the regular build process
240 # Load config of target os
241 if target_os in ['linux', 'tizen']:
242 env.SConscript('linux/SConscript')
244 env.SConscript(target_os + '/SConscript')
246 env.SConscript('external_libs.scons')
248 # Delete the temp files of configuration
249 if env.GetOption('clean'):
250 dir = env.get('SRC_DIR')
252 if os.path.exists(dir + '/config.log'):
253 Execute(Delete(dir + '/config.log'))
254 Execute(Delete(dir + '/.sconsign.dblite'))
255 Execute(Delete(dir + '/.sconf_temp'))