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 + 'gcc')
91 env.Replace(CXX = prefix + 'g++')
92 env.Replace(AR = prefix + 'ar')
93 env.Replace(AS = prefix + 'as')
94 env.Replace(LINK = prefix + 'ld')
95 env.Replace(RANLIB = prefix + 'ranlib')
98 env.PrependENVPath('PATH', tc_path)
99 sys_root = os.path.abspath(tc_path + '/../')
100 env.AppendUnique(CCFLAGS = ['--sysroot=' + sys_root])
101 env.AppendUnique(LINKFLAGS = ['--sysroot=' + sys_root])
103 if prefix or tc_path:
106 # Ensure scons be able to change its working directory
107 env.SConscriptChdir(1)
109 # Set the source directory and build directory
110 # Source directory: 'dir'
111 # Build directory: 'dir'/out/<target_os>/<target_arch>/<release or debug>/
113 # You can get the directory as following:
115 # env.get('BUILD_DIR')
117 def __set_dir(env, dir):
118 if not os.path.exists(dir + '/SConstruct'):
120 *************************************** Error *********************************
121 * The directory(%s) seems isn't a source code directory, no SConstruct file is
123 *******************************************************************************
127 if env.get('RELEASE'):
128 build_dir = dir + '/out/' + target_os + '/' + target_arch + '/release/'
130 build_dir = dir + '/out/' + target_os + '/' + target_arch + '/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, target):
148 env.AppendUnique(TS = [target])
150 def __print_targets(env):
152 ===============================================================================
154 for t in env.get('TS'):
157 \nDefault all targets will be built. You can specify the target to build:
159 $ scons [options] [target]
160 ===============================================================================
163 env.AddMethod(__set_dir, 'SetDir')
164 env.AddMethod(__print_targets, 'PrintTargets')
165 env.AddMethod(__src_to_obj, 'SrcToObj')
166 env.AddMethod(__append_target, 'AppendTarget')
167 env.AddMethod(__install, 'InstallTarget')
168 env.SetDir(env.GetLaunchDir())
172 ######################################################################
173 # Link scons to Yocto cross-toolchain ONLY when target_os is yocto
174 ######################################################################
175 if target_os == "yocto":
177 This code injects Yocto cross-compilation tools+flags into scons'
178 build environment in order to invoke the relevant tools while
183 CC = os.environ['CC']
184 target_prefix = CC.split()[0]
185 target_prefix = target_prefix[:len(target_prefix)-3]
186 tools = {"CC" : target_prefix+"gcc",
187 "CXX" : target_prefix+"g++",
188 "AS" : target_prefix+"as",
189 "LD" : target_prefix+"ld",
190 "GDB" : target_prefix+"gdb",
191 "STRIP" : target_prefix+"strip",
192 "RANLIB" : target_prefix+"ranlib",
193 "OBJCOPY" : target_prefix+"objcopy",
194 "OBJDUMP" : target_prefix+"objdump",
195 "AR" : target_prefix+"ar",
196 "NM" : target_prefix+"nm",
198 "STRINGS": target_prefix+"strings"}
199 PATH = os.environ['PATH'].split(os.pathsep)
201 if tool in os.environ:
203 if os.path.isfile(os.path.join(path, tools[tool])):
204 env[tool] = os.path.join(path, os.environ[tool])
207 print "ERROR in Yocto cross-toolchain environment"
210 Now reset TARGET_OS to linux so that all linux specific build configurations
211 hereupon apply for the entirety of the build process.
213 env['TARGET_OS'] = 'linux'
215 We want to preserve debug symbols to allow BitBake to generate both DEBUG and
216 RELEASE packages for OIC.
218 env['CCFLAGS'].append('-g')
222 If target_os is not Yocto, continue with the regular build process
224 # Load config of target os
225 if target_os in ['linux', 'tizen']:
226 env.SConscript('linux/SConscript')
228 env.SConscript(target_os + '/SConscript')
230 # Delete the temp files of configuration
231 if env.GetOption('clean'):
232 dir = env.get('SRC_DIR')
234 if os.path.exists(dir + '/config.log'):
235 Execute(Delete(dir + '/config.log'))
236 Execute(Delete(dir + '/.sconsign.dblite'))
237 Execute(Delete(dir + '/.sconf_temp'))