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', 'armeabi-v7a'],
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 ######################################################################
50 # Common build options (release, target os, target arch)
51 ######################################################################
52 help_vars = Variables()
53 help_vars.Add(BoolVariable('RELEASE', 'Build for release?', True)) # set to 'no', 'false' or 0 for debug
54 help_vars.Add(EnumVariable('TARGET_OS', 'Target platform', host, host_target_map[host]))
55 help_vars.Add(EnumVariable('TARGET_ARCH', 'Target architecture', default_arch, os_arch_map[target_os]))
57 ######################################################################
58 # Platform(build target) specific options: SDK/NDK & toolchain
59 ######################################################################
60 targets_support_cc = ['linux', 'arduino']
62 if target_os in targets_support_cc:
63 # Set cross compile toolchain
64 help_vars.Add('TC_PREFIX', "Toolchain prefix (Generally only be required for cross-compiling)", os.environ.get('TC_PREFIX'))
65 help_vars.Add(PathVariable('TC_PATH',
66 'Toolchain path (Generally only be required for cross-compiling)',
67 os.environ.get('TC_PATH')))
69 if target_os in ['android', 'arduino']: # Android/Arduino always uses GNU compiler regardless of the host
70 env = Environment(variables = help_vars,
71 tools = ['gnulink', 'gcc', 'g++', 'ar', 'as']
74 env = Environment(variables = help_vars, TARGET_ARCH = target_arch, TARGET_OS = target_os)
76 Help(help_vars.GenerateHelpText(env))
79 ************************************ Warning **********************************
80 * Enviornment variable TC_PREFIX/TC_PATH is set. It will change the default *
81 * toolchain, if it isn't what you expect you should unset it, otherwise it may*
82 * cause inexplicable errors. *
83 *******************************************************************************
86 if target_os in targets_support_cc:
87 prefix = env.get('TC_PREFIX')
88 tc_path = env.get('TC_PATH')
90 env.Replace(CC = prefix + env.get('CC', 'gcc'))
91 env.Replace(CXX = prefix + env.get('CXX', 'g++'))
92 env.Replace(AR = prefix + env.get('AR', 'ar'))
93 env.Replace(AS = prefix + env.get('AS', 'as'))
94 env.Replace(RANLIB = prefix + env.get('RANLIB', 'ranlib'))
97 env.PrependENVPath('PATH', tc_path)
98 sys_root = os.path.abspath(os.path.join(tc_path, '..'))
99 env.AppendUnique(CCFLAGS = ['--sysroot=' + sys_root])
100 env.AppendUnique(LINKFLAGS = ['--sysroot=' + sys_root])
102 if prefix or tc_path:
105 # Ensure scons be able to change its working directory
106 env.SConscriptChdir(1)
108 # Set the source directory and build directory
109 # Source directory: 'dir'
110 # Build directory: 'dir'/out/<target_os>/<target_arch>/<release or debug>/
112 # You can get the directory as following:
114 # env.get('BUILD_DIR')
116 def __set_dir(env, dir):
117 if not os.path.exists(os.path.join(dir, 'SConstruct')):
119 *************************************** Error *********************************
120 * The directory(%s) seems isn't a source code directory, no SConstruct file is
122 *******************************************************************************
126 build_dir = os.path.join(dir, 'out', target_os, target_arch)
127 if env.get('RELEASE'):
128 build_dir = os.path.join(build_dir, 'release')
130 build_dir = os.path.join(build_dir, 'debug')
131 env.VariantDir(build_dir, dir, duplicate=0)
133 env.Replace(BUILD_DIR = build_dir)
134 env.Replace(SRC_DIR = dir)
136 def __src_to_obj(env, src, home = ''):
137 obj = env.get('BUILD_DIR') + src.replace(home, '')
138 if env.get('OBJSUFFIX'):
139 obj += env.get('OBJSUFFIX')
140 return env.Object(obj, src)
142 def __install(ienv, targets, name):
143 i_n = ienv.Install(env.get('BUILD_DIR'), targets)
145 env.AppendUnique(TS = [name])
147 def __append_target(ienv, name, targets = None):
149 env.Alias(name, targets)
150 env.AppendUnique(TS = [name])
152 def __print_targets(env):
154 ===============================================================================
156 for t in env.get('TS'):
159 \nDefault all targets will be built. You can specify the target to build:
161 $ scons [options] [target]
162 ===============================================================================
165 env.AddMethod(__set_dir, 'SetDir')
166 env.AddMethod(__print_targets, 'PrintTargets')
167 env.AddMethod(__src_to_obj, 'SrcToObj')
168 env.AddMethod(__append_target, 'AppendTarget')
169 env.AddMethod(__install, 'InstallTarget')
170 env.SetDir(env.GetLaunchDir())
174 # Delete the temporary build and configuration files
175 if env.GetOption('clean'):
176 # Retrieve the configure log file and test directory nodes from the
177 # appropriate construction variables.
178 config_log = File(env['CONFIGURELOG'])
179 config_dir = Dir(env['CONFIGUREDIR'])
181 # The '.sconsign.dblite' file.
182 sconsign_dblite = os.path.join(env.get('SRC_DIR'),
185 if os.path.exists(str(config_log)):
186 Execute(Delete(config_log))
187 Execute(Delete(config_dir))
188 Execute(Delete(sconsign_dblite))
190 ######################################################################
191 # Link scons to Yocto cross-toolchain ONLY when target_os is yocto
192 ######################################################################
193 if target_os == "yocto":
195 This code injects Yocto cross-compilation tools+flags into scons'
196 build environment in order to invoke the relevant tools while
201 CC = os.environ['CC']
202 target_prefix = CC.split()[0]
203 target_prefix = target_prefix[:len(target_prefix)-3]
204 tools = {"CC" : target_prefix+"gcc",
205 "CXX" : target_prefix+"g++",
206 "AS" : target_prefix+"as",
207 "LD" : target_prefix+"ld",
208 "GDB" : target_prefix+"gdb",
209 "STRIP" : target_prefix+"strip",
210 "RANLIB" : target_prefix+"ranlib",
211 "OBJCOPY" : target_prefix+"objcopy",
212 "OBJDUMP" : target_prefix+"objdump",
213 "AR" : target_prefix+"ar",
214 "NM" : target_prefix+"nm",
216 "STRINGS": target_prefix+"strings"}
217 PATH = os.environ['PATH'].split(os.pathsep)
219 if tool in os.environ:
221 if os.path.isfile(os.path.join(path, tools[tool])):
222 env[tool] = os.path.join(path, os.environ[tool])
225 print "ERROR in Yocto cross-toolchain environment"
228 Now reset TARGET_OS to linux so that all linux specific build configurations
229 hereupon apply for the entirety of the build process.
231 env['TARGET_OS'] = 'linux'
233 We want to preserve debug symbols to allow BitBake to generate both DEBUG and
234 RELEASE packages for OIC.
236 env['CCFLAGS'].append('-g')
240 If target_os is not Yocto, continue with the regular build process
242 # Load config of target os
243 if target_os in ['linux', 'tizen']:
244 env.SConscript('linux/SConscript')
246 env.SConscript(target_os + '/SConscript')
248 # -------------------------------------------------------------------
249 # Configure the build as needed, e.g. detecting and setting
250 # appropriate build flags, etc.
252 # This is done after the platform-specific configuration is loaded to
253 # make sure we give the automated build configuration below an
254 # opportunity to detect platform-specific anomalies.
255 # -------------------------------------------------------------------
256 if not env.GetOption('clean') and not env.GetOption('help'):
257 Import('targets_csdk_only')
258 import iotivityconfig
259 from iotivityconfig import *
261 conf = env.Configure(
263 'CheckC99Flags' : iotivityconfig.check_c99_flags,
264 'CheckCXX11Flags' : iotivityconfig.check_cxx11_flags
267 # IoTivity requires support for C99 for the C SDK.
268 if not conf.CheckC99Flags():
269 print('C99 support is required!')
272 # IoTivity requires support for C++11 for the C++ SDK.
274 # However, some platforms, such as Arduino, only support the C
275 # SDK. Don't bother running the C++11 check in those cases.
276 if target_os not in targets_csdk_only and not conf.CheckCXX11Flags():
277 print('C++11 support is required!')
281 # -------------------------------------------------------------------
283 env.SConscript('external_libs.scons')
285 # Check if C/C++ compiler is installed
286 cc = env.get('CC', '')
287 cxx = env.get('CXX', '')
291 *************************************** Error *********************************
293 * Didn't find C compiler, please install C compiler (e.g. gcc >= 4.6). *
295 *******************************************************************************
301 *************************************** Error *********************************
303 * Didn't find C++ compiler, please install C++ compiler (e.g. g++ >= 4.6) *
305 *******************************************************************************