mirror of https://github.com/google/pebble
241 lines
9.3 KiB
Python
241 lines
9.3 KiB
Python
Help('''
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Type 'scons' to build and run all the available test cases.
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It will automatically detect your platform and C compiler and
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build appropriately.
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You can modify the behaviour using following options:
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BUILDDIR Directory to build into (default "build")
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CC Name of C compiler
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CXX Name of C++ compiler
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CCFLAGS Flags to pass to the C compiler
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CXXFLAGS Flags to pass to the C++ compiler
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LINK Name of linker (usually same as CC)
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LINKFLAGS Flags to pass to linker
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LINKLIBS Flags to pass to linker after object files
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PROTOC Path to protoc binary
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PROTOCFLAGS Arguments to pass protoc
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NODEFARGS Do not add the default CCFLAGS
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NOVALGRIND Do not use valgrind for memory checks
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For example, for a clang build, use:
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scons CC=clang CXX=clang++
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''')
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import os
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import platform
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env = Environment(ENV = os.environ)
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# Allow giving environment flags on command line.
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list_vars = ['CCFLAGS', 'CXXFLAGS', 'LINKFLAGS', 'LINKLIBS', 'PROTOCFLAGS']
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for var,val in ARGUMENTS.items():
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if var in list_vars:
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env.Append(**{var: val})
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else:
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env.Replace(**{var: val})
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env.SetDefault(BUILDDIR = "build")
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env.SConsignFile(env['BUILDDIR'] + "/sconsign")
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env.Replace(CONFIGUREDIR = env['BUILDDIR'] + "/config")
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# If a cross compilation platform is given, apply the environment settings
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# from site_scons/platforms/X/X.py
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if ARGUMENTS.get('PLATFORM'):
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platform_func = platforms.get(ARGUMENTS.get('PLATFORM'))
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if not platform_func:
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print("Supported platforms: " + str(platforms.keys()))
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raise Exception("Unsupported platform: " + ARGUMENTS.get('PLATFORM'))
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else:
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platform_func(env)
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# Load nanopb generator build rules from site_scons/site_tools/nanopb.py
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env.Tool("nanopb")
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# Limit memory usage. This is to catch problems like issue #338
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try:
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import resource
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soft, hard = resource.getrlimit(resourse.RLIMIT_AS)
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resource.setrlimit(resource.RLIMIT_AS, (100*1024*1024, hard))
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except:
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pass
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# On Mac OS X, gcc is usually alias for clang.
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# To avoid problem with default options, use clang directly.
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if platform.system() == "Darwin" and 'CC' not in ARGUMENTS:
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env.Replace(CC = "clang", CXX = "clang++")
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# Add the builders defined in site_init.py
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add_nanopb_builders(env)
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# Path to the files shared by tests, and to the nanopb core.
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env.Append(CPPPATH = ["#../", "$COMMON"])
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# Path for finding nanopb.proto
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env.Append(PROTOCPATH = '#../generator')
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# Check the compilation environment, unless we are just cleaning up.
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if not env.GetOption('clean'):
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def check_ccflags(context, flags, linkflags = ''):
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'''Check if given CCFLAGS are supported'''
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context.Message('Checking support for CCFLAGS="%s"... ' % flags)
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oldflags = context.env['CCFLAGS']
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oldlinkflags = context.env['LINKFLAGS']
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context.env.Append(CCFLAGS = flags)
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context.env.Append(LINKFLAGS = linkflags)
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result = context.TryCompile("int main() {return 0;}", '.c')
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context.env.Replace(CCFLAGS = oldflags)
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context.env.Replace(LINKFLAGS = oldlinkflags)
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context.Result(result)
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return result
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def check_protocversion(context):
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context.Display("Checking protoc version... ")
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status, output = context.TryAction('$PROTOC --version > $TARGET')
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if status:
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context.Result(str(output.strip()))
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return str(output.strip())
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else:
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context.Display("error: %s\n" % output.strip())
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context.did_show_result = 1
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context.Result("unknown, assuming 3.6.1")
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return "3.6.1"
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conf = Configure(env, custom_tests =
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{'CheckCCFLAGS': check_ccflags,
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'CheckProtocVersion': check_protocversion})
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# If the platform doesn't support C99, use our own header file instead.
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stdbool = conf.CheckCHeader('stdbool.h')
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stdint = conf.CheckCHeader('stdint.h')
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stddef = conf.CheckCHeader('stddef.h')
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string = conf.CheckCHeader('string.h')
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stdlib = conf.CheckCHeader('stdlib.h')
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limits = conf.CheckCHeader('limits.h')
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if not stdbool or not stdint or not stddef or not string or not limits:
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conf.env.Append(CPPDEFINES = {'PB_SYSTEM_HEADER': '\\"pb_syshdr.h\\"'})
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conf.env.Append(CPPPATH = "#../extra")
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conf.env.Append(SYSHDR = '\\"pb_syshdr.h\\"')
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if stdbool: conf.env.Append(CPPDEFINES = {'HAVE_STDBOOL_H': 1})
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if stdint: conf.env.Append(CPPDEFINES = {'HAVE_STDINT_H': 1})
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if stddef: conf.env.Append(CPPDEFINES = {'HAVE_STDDEF_H': 1})
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if string: conf.env.Append(CPPDEFINES = {'HAVE_STRING_H': 1})
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if stdlib: conf.env.Append(CPPDEFINES = {'HAVE_STDLIB_H': 1})
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if limits: conf.env.Append(CPPDEFINES = {'HAVE_LIMITS_H': 1})
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# Check protoc version
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conf.env['PROTOC_VERSION'] = conf.CheckProtocVersion()
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# Initialize compiler arguments with defaults, unless overridden on
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# command line.
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if not env.get('NODEFARGS'):
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# Check if libmudflap is available (only with GCC)
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if 'gcc' in env['CC']:
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if conf.CheckLib('mudflap'):
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conf.env.Append(CCFLAGS = '-fmudflap')
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conf.env.Append(LINKFLAGS = '-fmudflap')
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# Check if we can use extra strict warning flags (only with GCC)
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extra = '-Wcast-qual -Wlogical-op -Wconversion'
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extra += ' -fstrict-aliasing -Wstrict-aliasing=1'
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extra += ' -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls'
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extra += ' -Wstack-protector '
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if 'gcc' in env['CC']:
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if conf.CheckCCFLAGS(extra):
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conf.env.Append(CORECFLAGS = extra)
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# Check if we can use undefined behaviour sanitizer (only with clang)
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# TODO: Fuzz test triggers the bool sanitizer, figure out whether to
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# modify the fuzz test or to keep ignoring the check.
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extra = '-fsanitize=undefined,integer -fno-sanitize-recover=undefined,integer '
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if 'clang' in env['CC']:
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if conf.CheckCCFLAGS(extra, linkflags = extra):
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conf.env.Append(CORECFLAGS = extra)
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conf.env.Append(LINKFLAGS = extra)
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# End the config stuff
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env = conf.Finish()
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if not env.get('NODEFARGS'):
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# Initialize the CCFLAGS according to the compiler
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if 'gcc' in env['CC']:
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# GNU Compiler Collection
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# Debug info, warnings as errors
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env.Append(CFLAGS = '-g -Wall -Werror ')
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env.Append(CORECFLAGS = '-Wextra ')
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# Pedantic ANSI C. On AVR this doesn't work because we use large
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# enums in some of the tests.
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if env.get("EMBEDDED") != "AVR":
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env.Append(CFLAGS = '-ansi ')
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env.Append(CORECFLAGS = '-pedantic ')
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# Profiling and coverage
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if not env.get("EMBEDDED"):
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env.Append(CFLAGS = '-fprofile-arcs -ftest-coverage ')
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env.Append(LINKFLAGS = '-g --coverage')
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# We currently need uint64_t anyway, even though ANSI C90 otherwise..
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env.Append(CFLAGS = '-Wno-long-long')
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elif 'clang' in env['CC']:
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# CLang
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env.Append(CFLAGS = '-ansi -g -Wall -Werror')
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env.Append(CORECFLAGS = ' -Wextra -Wcast-qual -Wconversion')
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elif 'cl' in env['CC']:
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# Microsoft Visual C++
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# Debug info on, warning level 2 for tests, warnings as errors
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env.Append(CFLAGS = '/Zi /W2 /WX')
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env.Append(LINKFLAGS = '/DEBUG')
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# More strict checks on the nanopb core
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env.Append(CORECFLAGS = '/W4')
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# Enable C11 standard
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env.Append(CFLAGS = ' /std:c11 ')
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# Disable warning about sizeof(union{}) construct that is used in
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# message size macros, in e.g. multiple_files testcase. The C construct
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# itself is valid, but quite rare, which causes Visual C++ to give a warning
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# about it.
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env.Append(CFLAGS = '/wd4116')
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elif 'tcc' in env['CC']:
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# Tiny C Compiler
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env.Append(CFLAGS = '-Wall -Werror -g')
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if 'clang' in env['CXX']:
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env.Append(CXXFLAGS = '-g -Wall -Werror -Wextra -Wno-missing-field-initializers')
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elif 'g++' in env['CXX'] or 'gcc' in env['CXX']:
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env.Append(CXXFLAGS = '-g -Wall -Werror -Wextra -Wno-missing-field-initializers -std=gnu++11')
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elif 'cl' in env['CXX']:
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env.Append(CXXFLAGS = '/Zi /W2 /WX /wd4116 /wd4127')
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env.SetDefault(CORECFLAGS = '')
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if not env.get("EMBEDDED") and not env.get("NOVALGRIND"):
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valgrind = env.WhereIs('valgrind')
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if valgrind:
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env.SetDefault(VALGRIND = valgrind)
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# Make it possible to add commands to the end of linker line
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env.SetDefault(LINKLIBS = '')
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env.Replace(LINKCOM = env['LINKCOM'] + " $LINKLIBS")
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# Place build files under separate folder
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import os.path
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env['VARIANT_DIR'] = env['BUILDDIR']
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env['BUILD'] = '#' + env['VARIANT_DIR']
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env['COMMON'] = '#' + env['VARIANT_DIR'] + '/common'
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# Include common/SConscript first to make sure its exports are available
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# to other SConscripts.
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SConscript("common/SConscript", exports = 'env', variant_dir = env['VARIANT_DIR'] + '/common')
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# Now include the SConscript files from all subdirectories
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for subdir in Glob('*/SConscript') + Glob('regression/*/SConscript'):
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if str(subdir).startswith("common/"): continue
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if str(subdir).startswith("common\\"): continue
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SConscript(subdir, exports = 'env', variant_dir = env['VARIANT_DIR'] + '/' + os.path.dirname(str(subdir)))
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