from __future__ import print_function
# Global Python includes
+import atexit
import itertools
import os
import re
import SCons.Node
import SCons.Node.FS
-from m5.util import compareVersions, readCommand
+from m5.util import compareVersions, readCommand, readCommandWithReturn
help_texts = {
"options" : "",
# Help() function, but these two features are incompatible: once
# you've overridden the help text using Help(), there's no way to get
# at the help texts from AddOptions. See:
-# http://scons.tigris.org/issues/show_bug.cgi?id=2356
-# http://scons.tigris.org/issues/show_bug.cgi?id=2611
+# https://github.com/SCons/scons/issues/2356
+# https://github.com/SCons/scons/issues/2611
# This hack lets us extract the help text from AddOptions and
# re-inject it via Help(). Ideally someday this bug will be fixed and
# we can just use AddOption directly.
help="Add color to abbreviated scons output")
AddLocalOption('--no-colors', dest='use_colors', action='store_false',
help="Don't add color to abbreviated scons output")
-AddLocalOption('--with-cxx-config', dest='with_cxx_config',
- action='store_true',
+AddLocalOption('--with-cxx-config', action='store_true',
help="Build with support for C++-based configuration")
-AddLocalOption('--default', dest='default', type='string', action='store',
+AddLocalOption('--default',
help='Override which build_opts file to use for defaults')
-AddLocalOption('--ignore-style', dest='ignore_style', action='store_true',
+AddLocalOption('--ignore-style', action='store_true',
help='Disable style checking hooks')
-AddLocalOption('--gold-linker', dest='gold_linker', action='store_true',
+AddLocalOption('--gold-linker', action='store_true',
help='Use the gold linker')
-AddLocalOption('--no-lto', dest='no_lto', action='store_true',
+AddLocalOption('--no-lto', action='store_true',
help='Disable Link-Time Optimization for fast')
-AddLocalOption('--force-lto', dest='force_lto', action='store_true',
+AddLocalOption('--force-lto', action='store_true',
help='Use Link-Time Optimization instead of partial linking' +
' when the compiler doesn\'t support using them together.')
-AddLocalOption('--update-ref', dest='update_ref', action='store_true',
- help='Update test reference outputs')
-AddLocalOption('--verbose', dest='verbose', action='store_true',
+AddLocalOption('--verbose', action='store_true',
help='Print full tool command lines')
-AddLocalOption('--without-python', dest='without_python',
- action='store_true',
+AddLocalOption('--without-python', action='store_true',
help='Build without Python configuration support')
-AddLocalOption('--without-tcmalloc', dest='without_tcmalloc',
- action='store_true',
+AddLocalOption('--without-tcmalloc', action='store_true',
help='Disable linking against tcmalloc')
-AddLocalOption('--with-ubsan', dest='with_ubsan', action='store_true',
+AddLocalOption('--with-ubsan', action='store_true',
help='Build with Undefined Behavior Sanitizer if available')
-AddLocalOption('--with-asan', dest='with_asan', action='store_true',
+AddLocalOption('--with-asan', action='store_true',
help='Build with Address Sanitizer if available')
-AddLocalOption('--with-systemc-tests', dest='with_systemc_tests',
- action='store_true', help='Build systemc tests')
+AddLocalOption('--with-systemc-tests', action='store_true',
+ help='Build systemc tests')
-from gem5_scons import Transform, error, warning
+from gem5_scons import Transform, error, warning, summarize_warnings
if GetOption('no_lto') and GetOption('force_lto'):
error('--no-lto and --force-lto are mutually exclusive')
return [abspath(joinpath(root, expanduser(str(p))))
for p in path_list]
-def find_first_prog(prog_names):
- """Find the absolute path to the first existing binary in prog_names"""
-
- if not isinstance(prog_names, (list, tuple)):
- prog_names = [ prog_names ]
-
- for p in prog_names:
- p = main.WhereIs(p)
- if p is not None:
- return p
-
- return None
-
# Each target must have 'build' in the interior of the path; the
# directory below this will determine the build parameters. For
# example, for target 'foo/bar/build/X86/arch/x86/blah.do' we
('CXX', 'C++ compiler', environ.get('CXX', main['CXX'])),
('CCFLAGS_EXTRA', 'Extra C and C++ compiler flags', ''),
('LDFLAGS_EXTRA', 'Extra linker flags', ''),
+ ('MARSHAL_CCFLAGS_EXTRA', 'Extra C and C++ marshal compiler flags', ''),
+ ('MARSHAL_LDFLAGS_EXTRA', 'Extra marshal linker flags', ''),
('PYTHON_CONFIG', 'Python config binary to use',
- [ 'python2.7-config', 'python-config' ]),
+ [ 'python2.7-config', 'python-config', 'python3-config' ]),
('PROTOC', 'protoc tool', environ.get('PROTOC', 'protoc')),
('BATCH', 'Use batch pool for build and tests', False),
('BATCH_CMD', 'Batch pool submission command name', 'qdo'),
main.Append(CCFLAGS=['-I/usr/local/include'])
main.Append(CXXFLAGS=['-I/usr/local/include'])
- main.Append(LINKFLAGS='-Wl,--as-needed')
+ # On Mac OS X/Darwin the default linker doesn't support the
+ # option --as-needed
+ if sys.platform != "darwin":
+ main.Append(LINKFLAGS='-Wl,--as-needed')
main['FILTER_PSHLINKFLAGS'] = lambda x: str(x).replace(' -shared', '')
main['PSHLINKFLAGS'] = main.subst('${FILTER_PSHLINKFLAGS(SHLINKFLAGS)}')
if GetOption('gold_linker'):
disable_lto = GetOption('no_lto')
if not disable_lto and main.get('BROKEN_INCREMENTAL_LTO', False) and \
not GetOption('force_lto'):
- warning('Warning: Your compiler doesn\'t support incremental linking '
- 'and lto at the same time, so lto is being disabled. To force '
- 'lto on anyway, use the --force-lto option. That will disable '
+ warning('Your compiler doesn\'t support incremental linking and lto '
+ 'at the same time, so lto is being disabled. To force lto on '
+ 'anyway, use the --force-lto option. That will disable '
'partial linking.')
disable_lto = True
# interchangeably.
'-Wno-mismatched-tags',
])
+ if compareVersions(clang_version, "10.0") >= 0:
+ main.Append(CCFLAGS=['-Wno-c99-designator'])
+
+ if compareVersions(clang_version, "8.0") >= 0:
+ main.Append(CCFLAGS=['-Wno-defaulted-function-deleted'])
main.Append(TCMALLOC_CCFLAGS=['-fno-builtin'])
# Available for gcc >= 4.8 or llvm >= 3.1 both a requirement
# by the build system
sanitizers.append('address')
+ suppressions_file = Dir('util').File('lsan-suppressions').get_abspath()
+ suppressions_opt = 'suppressions=%s' % suppressions_file
+ main['ENV']['LSAN_OPTIONS'] = ':'.join([suppressions_opt,
+ 'print_suppressions=0'])
+ print()
+ warning('To suppress false positive leaks, set the LSAN_OPTIONS '
+ 'environment variable to "%s" when running gem5' %
+ suppressions_opt)
+ warning('LSAN_OPTIONS=suppressions=%s' % suppressions_opt)
+ print()
if sanitizers:
sanitizers = ','.join(sanitizers)
if main['GCC'] or main['CLANG']:
# version of python, see above for instructions on how to invoke
# scons with the appropriate PATH set.
- python_config = find_first_prog(main['PYTHON_CONFIG'])
+ python_config = main.Detect(main['PYTHON_CONFIG'])
if python_config is None:
error("Can't find a suitable python-config, tried %s" % \
main['PYTHON_CONFIG'])
# Read the linker flags and split them into libraries and other link
# flags. The libraries are added later through the call the CheckLib.
- py_ld_flags = readCommand([python_config, '--ldflags'],
- exception='').split()
+ # Note: starting in Python 3.8 the --embed flag is required to get the
+ # -lpython3.8 linker flag
+ retcode, cmd_stdout = readCommandWithReturn(
+ [python_config, '--ldflags', '--embed'], exception='')
+ if retcode != 0:
+ # If --embed isn't detected then we're running python <3.8
+ retcode, cmd_stdout = readCommandWithReturn(
+ [python_config, '--ldflags'], exception='')
+
+ # Checking retcode again
+ if retcode != 0:
+ error("Failing on python-config --ldflags command")
+
+ py_ld_flags = cmd_stdout.split()
+
py_libs = []
for lib in py_ld_flags:
if not lib.startswith('-l'):
if not conf.CheckLib(lib):
error("Can't find library %s required by python." % lib)
+main.Prepend(CPPPATH=Dir('ext/pybind11/include/'))
+# Bare minimum environment that only includes python
+marshal_env = main.Clone()
+marshal_env.Append(CCFLAGS='$MARSHAL_CCFLAGS_EXTRA')
+marshal_env.Append(LINKFLAGS='$MARSHAL_LDFLAGS_EXTRA')
+
# On Solaris you need to use libsocket for socket ops
if not conf.CheckLibWithHeader(None, 'sys/socket.h', 'C++', 'accept(0,0,0);'):
if not conf.CheckLibWithHeader('socket', 'sys/socket.h',
'and/or zlib.h header file.\n'
'Please install zlib and try again.')
+if not conf.CheckLibWithHeader('elf', 'gelf.h', 'C++',
+ 'elf_version(EV_CURRENT);'):
+ error('Did not find ELF access library libelf')
+
# If we have the protobuf compiler, also make sure we have the
# development libraries. If the check passes, libprotobuf will be
# automatically added to the LIBS environment variable. After
all_gpu_isa_list.sort()
sticky_vars.AddVariables(
- EnumVariable('TARGET_ISA', 'Target ISA', 'alpha', all_isa_list),
- EnumVariable('TARGET_GPU_ISA', 'Target GPU ISA', 'hsail', all_gpu_isa_list),
+ EnumVariable('TARGET_ISA', 'Target ISA', 'null', all_isa_list),
+ EnumVariable('TARGET_GPU_ISA', 'Target GPU ISA', 'gcn3', all_gpu_isa_list),
ListVariable('CPU_MODELS', 'CPU models',
sorted(n for n,m in CpuModel.dict.items() if m.default),
sorted(CpuModel.dict.keys())),
BoolVariable('USE_POSIX_CLOCK', 'Use POSIX Clocks', have_posix_clock),
BoolVariable('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv),
BoolVariable('USE_PNG', 'Enable support for PNG images', have_png),
- BoolVariable('CP_ANNOTATE', 'Enable critical path annotation capability',
- False),
BoolVariable('USE_KVM', 'Enable hardware virtualized (KVM) CPU models',
have_kvm),
BoolVariable('USE_TUNTAP',
)
# These variables get exported to #defines in config/*.hh (see src/SConscript).
-export_vars += ['USE_FENV', 'TARGET_ISA', 'TARGET_GPU_ISA', 'CP_ANNOTATE',
+export_vars += ['USE_FENV', 'TARGET_ISA', 'TARGET_GPU_ISA',
'USE_POSIX_CLOCK', 'USE_KVM', 'USE_TUNTAP', 'PROTOCOL',
'HAVE_PROTOBUF', 'HAVE_VALGRIND',
'HAVE_PERF_ATTR_EXCLUDE_HOST', 'USE_PNG',
# operands are the name of the variable and a Value node containing the
# value of the variable.
def build_config_file(target, source, env):
- (variable, value) = [s.get_contents() for s in source]
- f = file(str(target[0]), 'w')
- print('#define', variable, value, file=f)
- f.close()
+ (variable, value) = [s.get_contents().decode('utf-8') for s in source]
+ with open(str(target[0]), 'w') as f:
+ print('#define', variable, value, file=f)
return None
# Combine the two functions into a scons Action object.
gdb_xml_dir = joinpath(ext_dir, 'gdb-xml')
Export('gdb_xml_dir')
-main.Prepend(CPPPATH=Dir('ext/pybind11/include/'))
-
###################################################
#
# This builder and wrapper method are used to set up a directory with
# The src/SConscript file sets up the build rules in 'env' according
# to the configured variables. It returns a list of environments,
# one for each variant build (debug, opt, etc.)
- SConscript('src/SConscript', variant_dir = variant_path, exports = 'env')
+ SConscript('src/SConscript', variant_dir=variant_path,
+ exports=['env', 'marshal_env'])
# base help text
Help('''
%(local_vars)s
''' % help_texts)
+
+atexit.register(summarize_warnings)
projects / gem5.git / blobdiff