build_env = [(opt, env[opt]) for opt in export_vars]
-from m5.util import code_formatter
+from m5.util import code_formatter, compareVersions
########################################################################
# Code for adding source files of various types
# false). Current filters are:
# main -- specifies the gem5 main() function
# skip_lib -- do not put this file into the gem5 library
+# skip_no_python -- do not put this file into a no_python library
+# as it embeds compiled Python
# <unittest> -- unit tests use filters based on the unit test name
#
# A parent can now be specified for a source file and default filter
def __init__(cls, name, bases, dict):
super(SourceMeta, cls).__init__(name, bases, dict)
cls.all = []
-
+
def get(cls, **guards):
'''Find all files that match the specified guards. If a source
file does not specify a flag, the default is False'''
def __ge__(self, other): return self.filename >= other.filename
def __eq__(self, other): return self.filename == other.filename
def __ne__(self, other): return self.filename != other.filename
-
+
+ @staticmethod
+ def done():
+ def disabled(cls, name, *ignored):
+ raise RuntimeError("Additional SourceFile '%s'" % name,\
+ "declared, but targets deps are already fixed.")
+ SourceFile.__init__ = disabled
+
+
class Source(SourceFile):
'''Add a c/c++ source file to the build'''
def __init__(self, source, Werror=True, swig=False, **guards):
modules = {}
tnodes = {}
symnames = {}
-
+
def __init__(self, package, source, **guards):
'''specify the python package, the source file, and any guards'''
super(PySource, self).__init__(source, **guards)
def __init__(self, package, source, **guards):
'''Specify the python package, the source file, and any guards'''
- super(SwigSource, self).__init__(source, **guards)
+ super(SwigSource, self).__init__(source, skip_no_python=True, **guards)
modname,ext = self.extname
assert ext == 'i'
cc_file = joinpath(self.dirname, modname + '_wrap.cc')
py_file = joinpath(self.dirname, modname + '.py')
- self.cc_source = Source(cc_file, swig=True, parent=self)
- self.py_source = PySource(package, py_file, parent=self)
+ self.cc_source = Source(cc_file, swig=True, parent=self, **guards)
+ self.py_source = PySource(package, py_file, parent=self, **guards)
+
+class ProtoBuf(SourceFile):
+ '''Add a Protocol Buffer to build'''
+
+ def __init__(self, source, **guards):
+ '''Specify the source file, and any guards'''
+ super(ProtoBuf, self).__init__(source, **guards)
+
+ # Get the file name and the extension
+ modname,ext = self.extname
+ assert ext == 'proto'
+
+ # Currently, we stick to generating the C++ headers, so we
+ # only need to track the source and header.
+ self.cc_file = File(modname + '.pb.cc')
+ self.hh_file = File(modname + '.pb.h')
class UnitTest(object):
'''Create a UnitTest'''
all = []
- def __init__(self, target, *sources):
+ def __init__(self, target, *sources, **kwargs):
'''Specify the target name and any sources. Sources that are
not SourceFiles are evalued with Source(). All files are
guarded with a guard of the same name as the UnitTest
self.sources = srcs
self.target = target
+ self.main = kwargs.get('main', False)
UnitTest.all.append(self)
# Children should have access
Export('PySource')
Export('SimObject')
Export('SwigSource')
+Export('ProtoBuf')
Export('UnitTest')
########################################################################
for extra_dir in extras_dir_list:
prefix_len = len(dirname(extra_dir)) + 1
+
+ # Also add the corresponding build directory to pick up generated
+ # include files.
+ env.Append(CPPPATH=Dir(joinpath(env['BUILDDIR'], extra_dir[prefix_len:])))
+
for root, dirs, files in os.walk(extra_dir, topdown=True):
# if build lives in the extras directory, don't walk down it
if 'build' in dirs:
target_isa = env['TARGET_ISA']
def define(isa):
return isa.upper() + '_ISA'
-
+
def namespace(isa):
- return isa[0].upper() + isa[1:].lower() + 'ISA'
+ return isa[0].upper() + isa[1:].lower() + 'ISA'
code = code_formatter()
''')
+ # create defines for the preprocessing and compile-time determination
for i,isa in enumerate(isas):
code('#define $0 $1', define(isa), i + 1)
+ code()
+
+ # create an enum for any run-time determination of the ISA, we
+ # reuse the same name as the namespaces
+ code('enum class Arch {')
+ for i,isa in enumerate(isas):
+ if i + 1 == len(isas):
+ code(' $0 = $1', namespace(isa), define(isa))
+ else:
+ code(' $0 = $1,', namespace(isa), define(isa))
+ code('};')
code('''
#define THE_ISA ${{define(target_isa)}}
#define TheISA ${{namespace(target_isa)}}
+#define THE_ISA_STR "${{target_isa}}"
#endif // __CONFIG_THE_ISA_HH__''')
env.Command('config/the_isa.hh', map(Value, all_isa_list),
MakeAction(makeTheISA, Transform("CFG ISA", 0)))
+def makeTheGPUISA(source, target, env):
+ isas = [ src.get_contents() for src in source ]
+ target_gpu_isa = env['TARGET_GPU_ISA']
+ def define(isa):
+ return isa.upper() + '_ISA'
+
+ def namespace(isa):
+ return isa[0].upper() + isa[1:].lower() + 'ISA'
+
+
+ code = code_formatter()
+ code('''\
+#ifndef __CONFIG_THE_GPU_ISA_HH__
+#define __CONFIG_THE_GPU_ISA_HH__
+
+''')
+
+ # create defines for the preprocessing and compile-time determination
+ for i,isa in enumerate(isas):
+ code('#define $0 $1', define(isa), i + 1)
+ code()
+
+ # create an enum for any run-time determination of the ISA, we
+ # reuse the same name as the namespaces
+ code('enum class GPUArch {')
+ for i,isa in enumerate(isas):
+ if i + 1 == len(isas):
+ code(' $0 = $1', namespace(isa), define(isa))
+ else:
+ code(' $0 = $1,', namespace(isa), define(isa))
+ code('};')
+
+ code('''
+
+#define THE_GPU_ISA ${{define(target_gpu_isa)}}
+#define TheGpuISA ${{namespace(target_gpu_isa)}}
+#define THE_GPU_ISA_STR "${{target_gpu_isa}}"
+
+#endif // __CONFIG_THE_GPU_ISA_HH__''')
+
+ code.write(str(target[0]))
+
+env.Command('config/the_gpu_isa.hh', map(Value, all_gpu_isa_list),
+ MakeAction(makeTheGPUISA, Transform("CFG ISA", 0)))
+
########################################################################
#
# Prevent any SimObjects from being added after this point, they
sim_objects = m5.SimObject.allClasses
all_enums = m5.params.allEnums
+if m5.SimObject.noCxxHeader:
+ print >> sys.stderr, \
+ "warning: At least one SimObject lacks a header specification. " \
+ "This can cause unexpected results in the generated SWIG " \
+ "wrappers."
+
# Find param types that need to be explicitly wrapped with swig.
# These will be recognized because the ParamDesc will have a
# swig_decl() method. Most param types are based on types that don't
#
module_depends = ["m5", "m5.SimObject", "m5.params"]
depends = [ PySource.modules[dep].snode for dep in module_depends ]
+depends.sort(key = lambda x: x.name)
########################################################################
#
obj.cxx_param_decl(code)
code.write(target[0].abspath)
+def createSimObjectCxxConfig(is_header):
+ def body(target, source, env):
+ assert len(target) == 1 and len(source) == 1
+
+ name = str(source[0].get_contents())
+ obj = sim_objects[name]
+
+ code = code_formatter()
+ obj.cxx_config_param_file(code, is_header)
+ code.write(target[0].abspath)
+ return body
+
def createParamSwigWrapper(target, source, env):
assert len(target) == 1 and len(source) == 1
obj.swig_decl(code)
code.write(target[0].abspath)
+# dummy target for generated code
+# we start out with all the Source files so they get copied to build/*/ also.
+SWIG = env.Dummy('swig', [s.tnode for s in Source.get()])
+
# Generate all of the SimObject param C++ struct header files
params_hh_files = []
for name,simobj in sorted(sim_objects.iteritems()):
env.Command(hh_file, Value(name),
MakeAction(createSimObjectParamStruct, Transform("SO PARAM")))
env.Depends(hh_file, depends + extra_deps)
+ env.Depends(SWIG, hh_file)
+
+# C++ parameter description files
+if GetOption('with_cxx_config'):
+ for name,simobj in sorted(sim_objects.iteritems()):
+ py_source = PySource.modules[simobj.__module__]
+ extra_deps = [ py_source.tnode ]
+
+ cxx_config_hh_file = File('cxx_config/%s.hh' % name)
+ cxx_config_cc_file = File('cxx_config/%s.cc' % name)
+ env.Command(cxx_config_hh_file, Value(name),
+ MakeAction(createSimObjectCxxConfig(True),
+ Transform("CXXCPRHH")))
+ env.Command(cxx_config_cc_file, Value(name),
+ MakeAction(createSimObjectCxxConfig(False),
+ Transform("CXXCPRCC")))
+ env.Depends(cxx_config_hh_file, depends + extra_deps +
+ [File('params/%s.hh' % name), File('sim/cxx_config.hh')])
+ env.Depends(cxx_config_cc_file, depends + extra_deps +
+ [cxx_config_hh_file])
+ Source(cxx_config_cc_file)
+
+ cxx_config_init_cc_file = File('cxx_config/init.cc')
+
+ def createCxxConfigInitCC(target, source, env):
+ assert len(target) == 1 and len(source) == 1
+
+ code = code_formatter()
+
+ for name,simobj in sorted(sim_objects.iteritems()):
+ if not hasattr(simobj, 'abstract') or not simobj.abstract:
+ code('#include "cxx_config/${name}.hh"')
+ code()
+ code('void cxxConfigInit()')
+ code('{')
+ code.indent()
+ for name,simobj in sorted(sim_objects.iteritems()):
+ not_abstract = not hasattr(simobj, 'abstract') or \
+ not simobj.abstract
+ if not_abstract and 'type' in simobj.__dict__:
+ code('cxx_config_directory["${name}"] = '
+ '${name}CxxConfigParams::makeDirectoryEntry();')
+ code.dedent()
+ code('}')
+ code.write(target[0].abspath)
+
+ py_source = PySource.modules[simobj.__module__]
+ extra_deps = [ py_source.tnode ]
+ env.Command(cxx_config_init_cc_file, Value(name),
+ MakeAction(createCxxConfigInitCC, Transform("CXXCINIT")))
+ cxx_param_hh_files = ["cxx_config/%s.hh" % simobj
+ for name,simobj in sorted(sim_objects.iteritems())
+ if not hasattr(simobj, 'abstract') or not simobj.abstract]
+ Depends(cxx_config_init_cc_file, cxx_param_hh_files +
+ [File('sim/cxx_config.hh')])
+ Source(cxx_config_init_cc_file)
# Generate any needed param SWIG wrapper files
params_i_files = []
-for name,param in params_to_swig.iteritems():
+for name,param in sorted(params_to_swig.iteritems()):
i_file = File('python/m5/internal/%s.i' % (param.swig_module_name()))
params_i_files.append(i_file)
env.Command(i_file, Value(name),
MakeAction(createParamSwigWrapper, Transform("SW PARAM")))
env.Depends(i_file, depends)
+ env.Depends(SWIG, i_file)
SwigSource('m5.internal', i_file)
# Generate all enum header files
env.Command(cc_file, Value(name),
MakeAction(createEnumStrings, Transform("ENUM STR")))
env.Depends(cc_file, depends + extra_deps)
+ env.Depends(SWIG, cc_file)
Source(cc_file)
hh_file = File('enums/%s.hh' % name)
env.Command(hh_file, Value(name),
MakeAction(createEnumDecls, Transform("ENUMDECL")))
env.Depends(hh_file, depends + extra_deps)
+ env.Depends(SWIG, hh_file)
i_file = File('python/m5/internal/enum_%s.i' % name)
env.Command(i_file, Value(name),
MakeAction(createEnumSwigWrapper, Transform("ENUMSWIG")))
env.Depends(i_file, depends + extra_deps)
+ env.Depends(SWIG, i_file)
SwigSource('m5.internal', i_file)
# Generate SimObject SWIG wrapper files
-for name in sim_objects.iterkeys():
+for name,simobj in sorted(sim_objects.iteritems()):
+ py_source = PySource.modules[simobj.__module__]
+ extra_deps = [ py_source.tnode ]
i_file = File('python/m5/internal/param_%s.i' % name)
env.Command(i_file, Value(name),
MakeAction(createSimObjectSwigWrapper, Transform("SO SWIG")))
- env.Depends(i_file, depends)
+ env.Depends(i_file, depends + extra_deps)
SwigSource('m5.internal', i_file)
# Generate the main swig init file
EmbeddedSwig embed_swig_${module}(init_${module});
''')
code.write(str(target[0]))
-
+
# Build all swig modules
for swig in SwigSource.all:
env.Command([swig.cc_source.tnode, swig.py_source.tnode], swig.tnode,
init_file = '%s/%s_init.cc' % (dirname(cc_file), basename(cc_file))
env.Command(init_file, Value(swig.module),
MakeAction(makeEmbeddedSwigInit, Transform("EMBED SW")))
+ env.Depends(SWIG, init_file)
Source(init_file, **swig.guards)
+# Build all protocol buffers if we have got protoc and protobuf available
+if env['HAVE_PROTOBUF']:
+ for proto in ProtoBuf.all:
+ # Use both the source and header as the target, and the .proto
+ # file as the source. When executing the protoc compiler, also
+ # specify the proto_path to avoid having the generated files
+ # include the path.
+ env.Command([proto.cc_file, proto.hh_file], proto.tnode,
+ MakeAction('$PROTOC --cpp_out ${TARGET.dir} '
+ '--proto_path ${SOURCE.dir} $SOURCE',
+ Transform("PROTOC")))
+
+ env.Depends(SWIG, [proto.cc_file, proto.hh_file])
+ # Add the C++ source file
+ Source(proto.cc_file, **proto.guards)
+elif ProtoBuf.all:
+ print 'Got protobuf to build, but lacks support!'
+ Exit(1)
+
#
# Handle debug flags
#
def makeDebugFlagCC(target, source, env):
assert(len(target) == 1 and len(source) == 1)
- val = eval(source[0].get_contents())
- name, compound, desc = val
- compound = list(sorted(compound))
-
code = code_formatter()
+ # delay definition of CompoundFlags until after all the definition
+ # of all constituent SimpleFlags
+ comp_code = code_formatter()
+
# file header
code('''
/*
- * DO NOT EDIT THIS FILE! Automatically generated
+ * DO NOT EDIT THIS FILE! Automatically generated by SCons.
*/
#include "base/debug.hh"
-''')
- for flag in compound:
- code('#include "debug/$flag.hh"')
- code()
- code('namespace Debug {')
- code()
+namespace Debug {
- if not compound:
- code('SimpleFlag $name("$name", "$desc");')
- else:
- code('CompoundFlag $name("$name", "$desc",')
- code.indent()
- last = len(compound) - 1
- for i,flag in enumerate(compound):
- if i != last:
- code('$flag,')
- else:
- code('$flag);')
- code.dedent()
+''')
+
+ for name, flag in sorted(source[0].read().iteritems()):
+ n, compound, desc = flag
+ assert n == name
+ if not compound:
+ code('SimpleFlag $name("$name", "$desc");')
+ else:
+ comp_code('CompoundFlag $name("$name", "$desc",')
+ comp_code.indent()
+ last = len(compound) - 1
+ for i,flag in enumerate(compound):
+ if i != last:
+ comp_code('&$flag,')
+ else:
+ comp_code('&$flag);')
+ comp_code.dedent()
+
+ code.append(comp_code)
code()
code('} // namespace Debug')
# file header boilerplate
code('''\
/*
- * DO NOT EDIT THIS FILE!
- *
- * Automatically generated by SCons
+ * DO NOT EDIT THIS FILE! Automatically generated by SCons.
*/
#ifndef __DEBUG_${name}_HH__
n, compound, desc = flag
assert n == name
- env.Command('debug/%s.hh' % name, Value(flag),
+ hh_file = 'debug/%s.hh' % name
+ env.Command(hh_file, Value(flag),
MakeAction(makeDebugFlagHH, Transform("TRACING", 0)))
- env.Command('debug/%s.cc' % name, Value(flag),
- MakeAction(makeDebugFlagCC, Transform("TRACING", 0)))
- Source('debug/%s.cc' % name)
+ env.Depends(SWIG, hh_file)
+
+env.Command('debug/flags.cc', Value(debug_flags),
+ MakeAction(makeDebugFlagCC, Transform("TRACING", 0)))
+env.Depends(SWIG, 'debug/flags.cc')
+Source('debug/flags.cc')
+
+# version tags
+tags = \
+env.Command('sim/tags.cc', None,
+ MakeAction('util/cpt_upgrader.py --get-cc-file > $TARGET',
+ Transform("VER TAGS")))
+env.AlwaysBuild(tags)
# Embed python files. All .py files that have been indicated by a
# PySource() call in a SConscript need to be embedded into the M5
namespace {
-const char data_${sym}[] = {
+const uint8_t data_${sym}[] = {
''')
code.indent()
step = 16
x = array.array('B', data[i:i+step])
code(''.join('%d,' % d for d in x))
code.dedent()
-
+
code('''};
EmbeddedPython embedded_${sym}(
code.write(str(target[0]))
for source in PySource.all:
- env.Command(source.cpp, source.tnode,
+ env.Command(source.cpp, source.tnode,
MakeAction(embedPyFile, Transform("EMBED PY")))
- Source(source.cpp)
+ env.Depends(SWIG, source.cpp)
+ Source(source.cpp, skip_no_python=True)
########################################################################
#
#
# List of constructed environments to pass back to SConstruct
-envList = []
-
date_source = Source('base/date.cc', skip_lib=True)
+# Capture this directory for the closure makeEnv, otherwise when it is
+# called, it won't know what directory it should use.
+variant_dir = Dir('.').path
+def variant(*path):
+ return os.path.join(variant_dir, *path)
+def variantd(*path):
+ return variant(*path)+'/'
+
# Function to create a new build environment as clone of current
# environment 'env' with modified object suffix and optional stripped
# binary. Additional keyword arguments are appended to corresponding
# build environment vars.
-def makeEnv(label, objsfx, strip = False, **kwargs):
+def makeEnv(env, label, objsfx, strip = False, **kwargs):
# SCons doesn't know to append a library suffix when there is a '.' in the
# name. Use '_' instead.
- libname = 'gem5_' + label
- exename = 'gem5.' + label
- secondary_exename = 'm5.' + label
+ libname = variant('gem5_' + label)
+ exename = variant('gem5.' + label)
+ secondary_exename = variant('m5.' + label)
new_env = env.Clone(OBJSUFFIX=objsfx, SHOBJSUFFIX=objsfx + 's')
new_env.Label = label
new_env.Append(**kwargs)
swig_env = new_env.Clone()
- swig_env.Append(CCFLAGS='-Werror')
+
+ # Both gcc and clang have issues with unused labels and values in
+ # the SWIG generated code
+ swig_env.Append(CCFLAGS=['-Wno-unused-label', '-Wno-unused-value'])
+
if env['GCC']:
- swig_env.Append(CCFLAGS='-Wno-uninitialized')
- swig_env.Append(CCFLAGS='-Wno-sign-compare')
- swig_env.Append(CCFLAGS='-Wno-parentheses')
- swig_env.Append(CCFLAGS='-Wno-unused-label')
- swig_env.Append(CCFLAGS='-Wno-unused-but-set-variable')
+ # Depending on the SWIG version, we also need to supress
+ # warnings about uninitialized variables and missing field
+ # initializers.
+ swig_env.Append(CCFLAGS=['-Wno-uninitialized',
+ '-Wno-missing-field-initializers',
+ '-Wno-unused-but-set-variable',
+ '-Wno-maybe-uninitialized',
+ '-Wno-type-limits'])
+
+ # Only gcc >= 4.9 supports UBSan, so check both the version
+ # and the command-line option before adding the compiler and
+ # linker flags.
+ if GetOption('with_ubsan') and \
+ compareVersions(env['GCC_VERSION'], '4.9') >= 0:
+ new_env.Append(CCFLAGS='-fsanitize=undefined')
+ new_env.Append(LINKFLAGS='-fsanitize=undefined')
+
+ # The address sanitizer is available for gcc >= 4.8
+ if GetOption('with_asan'):
+ new_env.Append(CCFLAGS=['-fsanitize=address',
+ '-fno-omit-frame-pointer'])
+ new_env.Append(LINKFLAGS='-fsanitize=address')
+
+ if env['CLANG']:
+ swig_env.Append(CCFLAGS=['-Wno-sometimes-uninitialized',
+ '-Wno-deprecated-register',
+ '-Wno-tautological-compare'])
+
+ # We require clang >= 3.1, so there is no need to check any
+ # versions here.
+ if GetOption('with_ubsan'):
+ new_env.Append(CCFLAGS='-fsanitize=undefined')
+ new_env.Append(LINKFLAGS='-fsanitize=undefined')
+
+ if GetOption('with_asan'):
+ new_env.Append(CCFLAGS=['-fsanitize=address',
+ '-fno-omit-frame-pointer'])
+ new_env.Append(LINKFLAGS='-fsanitize=address')
werror_env = new_env.Clone()
- werror_env.Append(CCFLAGS='-Werror')
+ # Treat warnings as errors but white list some warnings that we
+ # want to allow (e.g., deprecation warnings).
+ werror_env.Append(CCFLAGS=['-Werror',
+ '-Wno-error=deprecated-declarations',
+ '-Wno-error=deprecated',
+ ])
def make_obj(source, static, extra_deps = None):
'''This function adds the specified source to the correct
return obj
- static_objs = \
- [ make_obj(s, True) for s in Source.get(main=False, skip_lib=False) ]
- shared_objs = \
- [ make_obj(s, False) for s in Source.get(main=False, skip_lib=False) ]
+ lib_guards = {'main': False, 'skip_lib': False}
+
+ # Without Python, leave out all SWIG and Python content from the
+ # library builds. The option doesn't affect gem5 built as a program
+ if GetOption('without_python'):
+ lib_guards['skip_no_python'] = False
+
+ static_objs = [ make_obj(s, True) for s in Source.get(**lib_guards) ]
+ shared_objs = [ make_obj(s, False) for s in Source.get(**lib_guards) ]
static_date = make_obj(date_source, static=True, extra_deps=static_objs)
static_objs.append(static_date)
-
+
shared_date = make_obj(date_source, static=False, extra_deps=shared_objs)
shared_objs.append(shared_date)
flags = { test.target : True }
test_sources = Source.get(**flags)
test_objs = [ make_obj(s, static=True) for s in test_sources ]
- testname = "unittest/%s.%s" % (test.target, label)
- new_env.Program(testname, main_objs + test_objs + static_objs)
+ if test.main:
+ test_objs += main_objs
+ path = variant('unittest/%s.%s' % (test.target, label))
+ new_env.Program(path, test_objs + static_objs)
progname = exename
if strip:
MakeAction('ln $SOURCE $TARGET', Transform("HARDLINK")))
new_env.M5Binary = targets[0]
- envList.append(new_env)
-
-# Debug binary
-ccflags = {}
+ return new_env
+
+# Start out with the compiler flags common to all compilers,
+# i.e. they all use -g for opt and -g -pg for prof
+ccflags = {'debug' : [], 'opt' : ['-g'], 'fast' : [], 'prof' : ['-g', '-pg'],
+ 'perf' : ['-g']}
+
+# Start out with the linker flags common to all linkers, i.e. -pg for
+# prof, and -lprofiler for perf. The -lprofile flag is surrounded by
+# no-as-needed and as-needed as the binutils linker is too clever and
+# simply doesn't link to the library otherwise.
+ldflags = {'debug' : [], 'opt' : [], 'fast' : [], 'prof' : ['-pg'],
+ 'perf' : ['-Wl,--no-as-needed', '-lprofiler', '-Wl,--as-needed']}
+
+# For Link Time Optimization, the optimisation flags used to compile
+# individual files are decoupled from those used at link time
+# (i.e. you can compile with -O3 and perform LTO with -O0), so we need
+# to also update the linker flags based on the target.
if env['GCC']:
if sys.platform == 'sunos5':
- ccflags['debug'] = '-gstabs+'
+ ccflags['debug'] += ['-gstabs+']
else:
- ccflags['debug'] = '-ggdb3'
- ccflags['opt'] = '-g -O3'
- ccflags['fast'] = '-O3'
- ccflags['prof'] = '-O3 -g -pg'
-elif env['SUNCC']:
- ccflags['debug'] = '-g0'
- ccflags['opt'] = '-g -O'
- ccflags['fast'] = '-fast'
- ccflags['prof'] = '-fast -g -pg'
-elif env['ICC']:
- ccflags['debug'] = '-g -O0'
- ccflags['opt'] = '-g -O'
- ccflags['fast'] = '-fast'
- ccflags['prof'] = '-fast -g -pg'
+ ccflags['debug'] += ['-ggdb3']
+ ldflags['debug'] += ['-O0']
+ # opt, fast, prof and perf all share the same cc flags, also add
+ # the optimization to the ldflags as LTO defers the optimization
+ # to link time
+ for target in ['opt', 'fast', 'prof', 'perf']:
+ ccflags[target] += ['-O3']
+ ldflags[target] += ['-O3']
+
+ ccflags['fast'] += env['LTO_CCFLAGS']
+ ldflags['fast'] += env['LTO_LDFLAGS']
+elif env['CLANG']:
+ ccflags['debug'] += ['-g', '-O0']
+ # opt, fast, prof and perf all share the same cc flags
+ for target in ['opt', 'fast', 'prof', 'perf']:
+ ccflags[target] += ['-O3']
else:
print 'Unknown compiler, please fix compiler options'
Exit(1)
-makeEnv('debug', '.do',
- CCFLAGS = Split(ccflags['debug']),
- CPPDEFINES = ['DEBUG', 'TRACING_ON=1'])
-
-# Optimized binary
-makeEnv('opt', '.o',
- CCFLAGS = Split(ccflags['opt']),
- CPPDEFINES = ['TRACING_ON=1'])
-
-# "Fast" binary
-makeEnv('fast', '.fo', strip = True,
- CCFLAGS = Split(ccflags['fast']),
- CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'])
-
-# Profiled binary
-makeEnv('prof', '.po',
- CCFLAGS = Split(ccflags['prof']),
- CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
- LINKFLAGS = '-pg')
-Return('envList')
+# To speed things up, we only instantiate the build environments we
+# need. We try to identify the needed environment for each target; if
+# we can't, we fall back on instantiating all the environments just to
+# be safe.
+target_types = ['debug', 'opt', 'fast', 'prof', 'perf']
+obj2target = {'do': 'debug', 'o': 'opt', 'fo': 'fast', 'po': 'prof',
+ 'gpo' : 'perf'}
+
+def identifyTarget(t):
+ ext = t.split('.')[-1]
+ if ext in target_types:
+ return ext
+ if obj2target.has_key(ext):
+ return obj2target[ext]
+ match = re.search(r'/tests/([^/]+)/', t)
+ if match and match.group(1) in target_types:
+ return match.group(1)
+ return 'all'
+
+needed_envs = [identifyTarget(target) for target in BUILD_TARGETS]
+if 'all' in needed_envs:
+ needed_envs += target_types
+
+def makeEnvirons(target, source, env):
+ # cause any later Source() calls to be fatal, as a diagnostic.
+ Source.done()
+
+ envList = []
+
+ # Debug binary
+ if 'debug' in needed_envs:
+ envList.append(
+ makeEnv(env, 'debug', '.do',
+ CCFLAGS = Split(ccflags['debug']),
+ CPPDEFINES = ['DEBUG', 'TRACING_ON=1'],
+ LINKFLAGS = Split(ldflags['debug'])))
+
+ # Optimized binary
+ if 'opt' in needed_envs:
+ envList.append(
+ makeEnv(env, 'opt', '.o',
+ CCFLAGS = Split(ccflags['opt']),
+ CPPDEFINES = ['TRACING_ON=1'],
+ LINKFLAGS = Split(ldflags['opt'])))
+
+ # "Fast" binary
+ if 'fast' in needed_envs:
+ envList.append(
+ makeEnv(env, 'fast', '.fo', strip = True,
+ CCFLAGS = Split(ccflags['fast']),
+ CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
+ LINKFLAGS = Split(ldflags['fast'])))
+
+ # Profiled binary using gprof
+ if 'prof' in needed_envs:
+ envList.append(
+ makeEnv(env, 'prof', '.po',
+ CCFLAGS = Split(ccflags['prof']),
+ CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
+ LINKFLAGS = Split(ldflags['prof'])))
+
+ # Profiled binary using google-pprof
+ if 'perf' in needed_envs:
+ envList.append(
+ makeEnv(env, 'perf', '.gpo',
+ CCFLAGS = Split(ccflags['perf']),
+ CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
+ LINKFLAGS = Split(ldflags['perf'])))
+
+ # Set up the regression tests for each build.
+ for e in envList:
+ SConscript(os.path.join(env.root.abspath, 'tests', 'SConscript'),
+ variant_dir = variantd('tests', e.Label),
+ exports = { 'env' : e }, duplicate = False)
+
+# The MakeEnvirons Builder defers the full dependency collection until
+# after processing the ISA definition (due to dynamically generated
+# source files). Add this dependency to all targets so they will wait
+# until the environments are completely set up. Otherwise, a second
+# process (e.g. -j2 or higher) will try to compile the requested target,
+# not know how, and fail.
+env.Append(BUILDERS = {'MakeEnvirons' :
+ Builder(action=MakeAction(makeEnvirons,
+ Transform("ENVIRONS", 1)))})
+
+isa_target = env['PHONY_BASE'] + '-deps'
+environs = env['PHONY_BASE'] + '-environs'
+env.Depends('#all-deps', isa_target)
+env.Depends('#all-environs', environs)
+env.ScanISA(isa_target, File('arch/%s/generated/inc.d' % env['TARGET_ISA']))
+envSetup = env.MakeEnvirons(environs, isa_target)
+
+# make sure no -deps targets occur before all ISAs are complete
+env.Depends(isa_target, '#all-isas')
+# likewise for -environs targets and all the -deps targets
+env.Depends(environs, '#all-deps')
projects / gem5.git / blobdiff