# -*- mode:python -*-
-# Copyright (c) 2013, 2015-2017 ARM Limited
+# Copyright (c) 2013, 2015-2020 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
from os.path import abspath, basename, dirname, expanduser, normpath
from os.path import exists, isdir, isfile
from os.path import join as joinpath, split as splitpath
+from re import match
# SCons includes
import SCons
import SCons.Node
+import SCons.Node.FS
from m5.util import compareVersions, readCommand
help='Override which build_opts file to use for defaults')
AddLocalOption('--ignore-style', dest='ignore_style', action='store_true',
help='Disable style checking hooks')
+AddLocalOption('--gold-linker', dest='gold_linker', action='store_true',
+ help='Use the gold linker')
AddLocalOption('--no-lto', dest='no_lto', action='store_true',
help='Disable Link-Time Optimization for fast')
AddLocalOption('--force-lto', dest='force_lto', action='store_true',
AddLocalOption('--with-asan', dest='with_asan', action='store_true',
help='Build with Address Sanitizer if available')
+from gem5_scons import Transform, error, warning
+
if GetOption('no_lto') and GetOption('force_lto'):
- print('--no-lto and --force-lto are mutually exclusive')
- Exit(1)
+ error('--no-lto and --force-lto are mutually exclusive')
########################################################################
#
main = Environment()
-from gem5_scons import Transform
from gem5_scons.util import get_termcap
termcap = get_termcap()
# Check that we have a C/C++ compiler
if not ('CC' in main_dict_keys and 'CXX' in main_dict_keys):
- print("No C++ compiler installed (package g++ on Ubuntu and RedHat)")
- Exit(1)
+ error("No C++ compiler installed (package g++ on Ubuntu and RedHat)")
###################################################
#
for i in range(len(l)+offs, 0, -1):
if l[i] == elt:
return i
- raise ValueError, "element not found"
+ raise ValueError("element not found")
# Take a list of paths (or SCons Nodes) and return a list with all
# paths made absolute and ~-expanded. Paths will be interpreted
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/ALPHA_SE/arch/alpha/blah.do' we
try:
build_top = rfind(path_dirs, 'build', -2)
except:
- print("Error: no non-leaf 'build' dir found on target path", t)
- Exit(1)
+ error("No non-leaf 'build' dir found on target path.", t)
this_build_root = joinpath('/',*path_dirs[:build_top+1])
if not build_root:
build_root = this_build_root
else:
if this_build_root != build_root:
- print("Error: build targets not under same build root\n"
+ error("build targets not under same build root\n"
" %s\n %s" % (build_root, this_build_root))
- Exit(1)
variant_path = joinpath('/',*path_dirs[:build_top+2])
if variant_path not in variant_paths:
variant_paths.append(variant_path)
global_vars.AddVariables(
('CC', 'C compiler', environ.get('CC', main['CC'])),
('CXX', 'C++ compiler', environ.get('CXX', main['CXX'])),
+ ('CCFLAGS_EXTRA', 'Extra C and C++ compiler flags', ''),
+ ('LDFLAGS_EXTRA', 'Extra linker flags', ''),
+ ('PYTHON_CONFIG', 'Python config binary to use',
+ [ 'python2.7-config', 'python-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['GCC'] = CXX_version and CXX_version.find('g++') >= 0
main['CLANG'] = CXX_version and CXX_version.find('clang') >= 0
if main['GCC'] + main['CLANG'] > 1:
- print('Error: How can we have two at the same time?')
- Exit(1)
+ error('Two compilers enabled at once?')
# Set up default C++ compiler flags
if main['GCC'] or main['CLANG']:
main.Append(CCFLAGS=['-I/usr/local/include'])
main.Append(CXXFLAGS=['-I/usr/local/include'])
+ main.Append(LINKFLAGS='-Wl,--as-needed')
main['FILTER_PSHLINKFLAGS'] = lambda x: str(x).replace(' -shared', '')
main['PSHLINKFLAGS'] = main.subst('${FILTER_PSHLINKFLAGS(SHLINKFLAGS)}')
- main['PLINKFLAGS'] = main.subst('${LINKFLAGS}')
+ if GetOption('gold_linker'):
+ main.Append(LINKFLAGS='-fuse-ld=gold')
+ main['PLINKFLAGS'] = main.get('LINKFLAGS')
shared_partial_flags = ['-r', '-nostdlib']
main.Append(PSHLINKFLAGS=shared_partial_flags)
main.Append(PLINKFLAGS=shared_partial_flags)
'-Wno-error=deprecated',
])
else:
- print(termcap.Yellow + termcap.Bold + 'Error' + termcap.Normal, end=' ')
- print("Don't know what compiler options to use for your compiler.")
- print(termcap.Yellow + ' compiler:' + termcap.Normal, main['CXX'])
- print(termcap.Yellow + ' version:' + termcap.Normal, end = ' ')
- if not CXX_version:
- print(termcap.Yellow + termcap.Bold + "COMMAND NOT FOUND!" +
- termcap.Normal)
- else:
- print(CXX_version.replace('\n', '<nl>'))
- print(" If you're trying to use a compiler other than GCC")
- print(" or clang, there appears to be something wrong with your")
- print(" environment.")
- print(" ")
- print(" If you are trying to use a compiler other than those listed")
- print(" above you will need to ease fix SConstruct and ")
- print(" src/SConscript to support that compiler.")
- Exit(1)
+ error('\n'.join((
+ "Don't know what compiler options to use for your compiler.",
+ "compiler: " + main['CXX'],
+ "version: " + CXX_version.replace('\n', '<nl>') if
+ CXX_version else 'COMMAND NOT FOUND!',
+ "If you're trying to use a compiler other than GCC",
+ "or clang, there appears to be something wrong with your",
+ "environment.",
+ "",
+ "If you are trying to use a compiler other than those listed",
+ "above you will need to ease fix SConstruct and ",
+ "src/SConscript to support that compiler.")))
if main['GCC']:
# Check for a supported version of gcc. >= 4.8 is chosen for its
# http://gcc.gnu.org/projects/cxx0x.html for details.
gcc_version = readCommand([main['CXX'], '-dumpversion'], exception=False)
if compareVersions(gcc_version, "4.8") < 0:
- print('Error: gcc version 4.8 or newer required.')
- print(' Installed version: ', gcc_version)
+ error('gcc version 4.8 or newer required.\n'
+ 'Installed version:', gcc_version)
Exit(1)
main['GCC_VERSION'] = gcc_version
main.Append(PSHLINKFLAGS='-flinker-output=rel')
main.Append(PLINKFLAGS='-flinker-output=rel')
- # Make sure we warn if the user has requested to compile with the
- # Undefined Benahvior Sanitizer and this version of gcc does not
- # support it.
- if GetOption('with_ubsan') and \
- compareVersions(gcc_version, '4.9') < 0:
- print(termcap.Yellow + termcap.Bold +
- 'Warning: UBSan is only supported using gcc 4.9 and later.' +
- termcap.Normal)
-
disable_lto = GetOption('no_lto')
if not disable_lto and main.get('BROKEN_INCREMENTAL_LTO', False) and \
not GetOption('force_lto'):
- print(termcap.Yellow + termcap.Bold +
- '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.' +
- termcap.Normal)
+ 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 '
+ 'partial linking.')
disable_lto = True
# Add the appropriate Link-Time Optimization (LTO) flags
main.Append(TCMALLOC_CCFLAGS=['-fno-builtin-malloc', '-fno-builtin-calloc',
'-fno-builtin-realloc', '-fno-builtin-free'])
- # The address sanitizer is available for gcc >= 4.8
- if GetOption('with_asan'):
- if GetOption('with_ubsan') and \
- compareVersions(main['GCC_VERSION'], '4.9') >= 0:
- main.Append(CCFLAGS=['-fsanitize=address,undefined',
- '-fno-omit-frame-pointer'],
- LINKFLAGS='-fsanitize=address,undefined')
- else:
- main.Append(CCFLAGS=['-fsanitize=address',
- '-fno-omit-frame-pointer'],
- LINKFLAGS='-fsanitize=address')
- # Only gcc >= 4.9 supports UBSan, so check both the version
- # and the command-line option before adding the compiler and
- # linker flags.
- elif GetOption('with_ubsan') and \
- compareVersions(main['GCC_VERSION'], '4.9') >= 0:
- main.Append(CCFLAGS='-fsanitize=undefined')
- main.Append(LINKFLAGS='-fsanitize=undefined')
-
elif main['CLANG']:
# Check for a supported version of clang, >= 3.1 is needed to
# support similar features as gcc 4.8. See
if (clang_version_match):
clang_version = clang_version_match.groups()[0]
if compareVersions(clang_version, "3.1") < 0:
- print('Error: clang version 3.1 or newer required.')
- print(' Installed version:', clang_version)
- Exit(1)
+ error('clang version 3.1 or newer required.\n'
+ 'Installed version:', clang_version)
else:
- print('Error: Unable to determine clang version.')
- Exit(1)
+ error('Unable to determine clang version.')
# clang has a few additional warnings that we disable, extraneous
# parantheses are allowed due to Ruby's printing of the AST,
if sys.platform.startswith('freebsd'):
main.Append(LIBS=['thr'])
- # We require clang >= 3.1, so there is no need to check any
- # versions here.
- if GetOption('with_ubsan'):
- if GetOption('with_asan'):
- main.Append(CCFLAGS=['-fsanitize=address,undefined',
- '-fno-omit-frame-pointer'],
- LINKFLAGS='-fsanitize=address,undefined')
- else:
- main.Append(CCFLAGS='-fsanitize=undefined',
- LINKFLAGS='-fsanitize=undefined')
-
- elif GetOption('with_asan'):
- main.Append(CCFLAGS=['-fsanitize=address',
+# Add sanitizers flags
+sanitizers=[]
+if GetOption('with_ubsan'):
+ # Only gcc >= 4.9 supports UBSan, so check both the version
+ # and the command-line option before adding the compiler and
+ # linker flags.
+ if not main['GCC'] or compareVersions(main['GCC_VERSION'], '4.9') >= 0:
+ sanitizers.append('undefined')
+if GetOption('with_asan'):
+ # Available for gcc >= 4.8 or llvm >= 3.1 both a requirement
+ # by the build system
+ sanitizers.append('address')
+if sanitizers:
+ sanitizers = ','.join(sanitizers)
+ if main['GCC'] or main['CLANG']:
+ main.Append(CCFLAGS=['-fsanitize=%s' % sanitizers,
'-fno-omit-frame-pointer'],
- LINKFLAGS='-fsanitize=address')
-
-else:
- print(termcap.Yellow + termcap.Bold + 'Error' + termcap.Normal, end=' ')
- print("Don't know what compiler options to use for your compiler.")
- print(termcap.Yellow + ' compiler:' + termcap.Normal, main['CXX'])
- print(termcap.Yellow + ' version:' + termcap.Normal, end=' ')
- if not CXX_version:
- print(termcap.Yellow + termcap.Bold + "COMMAND NOT FOUND!" +
- termcap.Normal)
+ LINKFLAGS='-fsanitize=%s' % sanitizers)
else:
- print(CXX_version.replace('\n', '<nl>'))
- print(" If you're trying to use a compiler other than GCC")
- print(" or clang, there appears to be something wrong with your")
- print(" environment.")
- print(" ")
- print(" If you are trying to use a compiler other than those listed")
- print(" above you will need to ease fix SConstruct and ")
- print(" src/SConscript to support that compiler.")
- Exit(1)
+ warning("Don't know how to enable %s sanitizer(s) for your "
+ "compiler." % sanitizers)
# Set up common yacc/bison flags (needed for Ruby)
main['YACCFLAGS'] = '-d'
# cygwin has some header file issues...
main.Append(CCFLAGS=["-Wno-uninitialized"])
+
+have_pkg_config = readCommand(['pkg-config', '--version'], exception='')
+
# Check for the protobuf compiler
-protoc_version = readCommand([main['PROTOC'], '--version'],
- exception='').split()
-
-# First two words should be "libprotoc x.y.z"
-if len(protoc_version) < 2 or protoc_version[0] != 'libprotoc':
- print(termcap.Yellow + termcap.Bold +
- 'Warning: Protocol buffer compiler (protoc) not found.\n' +
- ' Please install protobuf-compiler for tracing support.' +
- termcap.Normal)
- main['PROTOC'] = False
-else:
- # Based on the availability of the compress stream wrappers,
- # require 2.1.0
- min_protoc_version = '2.1.0'
- if compareVersions(protoc_version[1], min_protoc_version) < 0:
- print(termcap.Yellow + termcap.Bold +
- 'Warning: protoc version', min_protoc_version,
- 'or newer required.\n' +
- ' Installed version:', protoc_version[1],
- termcap.Normal)
- main['PROTOC'] = False
+try:
+ main['HAVE_PROTOC'] = True
+ protoc_version = readCommand([main['PROTOC'], '--version']).split()
+
+ # First two words should be "libprotoc x.y.z"
+ if len(protoc_version) < 2 or protoc_version[0] != 'libprotoc':
+ warning('Protocol buffer compiler (protoc) not found.\n'
+ 'Please install protobuf-compiler for tracing support.')
+ main['HAVE_PROTOC'] = False
else:
- # Attempt to determine the appropriate include path and
- # library path using pkg-config, that means we also need to
- # check for pkg-config. Note that it is possible to use
- # protobuf without the involvement of pkg-config. Later on we
- # check go a library config check and at that point the test
- # will fail if libprotobuf cannot be found.
- if readCommand(['pkg-config', '--version'], exception=''):
- try:
- # Attempt to establish what linking flags to add for protobuf
- # using pkg-config
- main.ParseConfig('pkg-config --cflags --libs-only-L protobuf')
- except:
- print(termcap.Yellow + termcap.Bold +
- 'Warning: pkg-config could not get protobuf flags.' +
- termcap.Normal)
-
+ # Based on the availability of the compress stream wrappers,
+ # require 2.1.0
+ min_protoc_version = '2.1.0'
+ if compareVersions(protoc_version[1], min_protoc_version) < 0:
+ warning('protoc version', min_protoc_version,
+ 'or newer required.\n'
+ 'Installed version:', protoc_version[1])
+ main['HAVE_PROTOC'] = False
+ else:
+ # Attempt to determine the appropriate include path and
+ # library path using pkg-config, that means we also need to
+ # check for pkg-config. Note that it is possible to use
+ # protobuf without the involvement of pkg-config. Later on we
+ # check go a library config check and at that point the test
+ # will fail if libprotobuf cannot be found.
+ if have_pkg_config:
+ try:
+ # Attempt to establish what linking flags to add for
+ # protobuf
+ # using pkg-config
+ main.ParseConfig(
+ 'pkg-config --cflags --libs-only-L protobuf')
+ except:
+ warning('pkg-config could not get protobuf flags.')
+except Exception as e:
+ warning('While checking protoc version:', str(e))
+ main['HAVE_PROTOC'] = False
# Check for 'timeout' from GNU coreutils. If present, regressions will
# be run with a time limit. We require version 8.13 since we rely on
# we add them explicitly below. If you want to link in an alternate
# version of python, see above for instructions on how to invoke
# scons with the appropriate PATH set.
- #
- # First we check if python2-config exists, else we use python-config
- python_config = readCommand(['which', 'python2-config'],
- exception='').strip()
- if not os.path.exists(python_config):
- python_config = readCommand(['which', 'python-config'],
- exception='').strip()
+
+ python_config = find_first_prog(main['PYTHON_CONFIG'])
+ if python_config is None:
+ error("Can't find a suitable python-config, tried %s" % \
+ main['PYTHON_CONFIG'])
+
+ print("Info: Using Python config: %s" % (python_config, ))
py_includes = readCommand([python_config, '--includes'],
exception='').split()
+ py_includes = filter(lambda s: match(r'.*\/include\/.*',s), py_includes)
# Strip the -I from the include folders before adding them to the
# CPPPATH
- main.Append(CPPPATH=map(lambda inc: inc[2:], py_includes))
+ py_includes = map(lambda s: s[2:] if s.startswith('-I') else s, py_includes)
+ main.Append(CPPPATH=py_includes)
# Read the linker flags and split them into libraries and other link
# flags. The libraries are added later through the call the CheckLib.
# verify that this stuff works
if not conf.CheckHeader('Python.h', '<>'):
- print("Error: Check failed for Python.h header in", py_includes)
- print("Two possible reasons:")
- print("1. Python headers are not installed (You can install the "
- "package python-dev on Ubuntu and RedHat)")
- print("2. SCons is using a wrong C compiler. This can happen if "
- "CC has the wrong value.")
- print("CC = %s" % main['CC'])
- Exit(1)
+ error("Check failed for Python.h header in",
+ ' '.join(py_includes), "\n"
+ "Two possible reasons:\n"
+ "1. Python headers are not installed (You can install the "
+ "package python-dev on Ubuntu and RedHat)\n"
+ "2. SCons is using a wrong C compiler. This can happen if "
+ "CC has the wrong value.\n"
+ "CC = %s" % main['CC'])
for lib in py_libs:
if not conf.CheckLib(lib):
- print("Error: can't find library %s required by python" % lib)
- Exit(1)
+ error("Can't find library %s required by python." % lib)
# 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', 'C++', 'accept(0,0,0);'):
- print("Can't find library with socket calls (e.g. accept())")
- Exit(1)
+ if not conf.CheckLibWithHeader('socket', 'sys/socket.h',
+ 'C++', 'accept(0,0,0);'):
+ error("Can't find library with socket calls (e.g. accept()).")
# Check for zlib. If the check passes, libz will be automatically
# added to the LIBS environment variable.
if not conf.CheckLibWithHeader('z', 'zlib.h', 'C++','zlibVersion();'):
- print('Error: did not find needed zlib compression library '
- 'and/or zlib.h header file.')
- print(' Please install zlib and try again.')
- Exit(1)
+ error('Did not find needed zlib compression library '
+ 'and/or zlib.h header file.\n'
+ 'Please install zlib and try again.')
# 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
# this, we can use the HAVE_PROTOBUF flag to determine if we have
# got both protoc and libprotobuf available.
-main['HAVE_PROTOBUF'] = main['PROTOC'] and \
+main['HAVE_PROTOBUF'] = main['HAVE_PROTOC'] and \
conf.CheckLibWithHeader('protobuf', 'google/protobuf/message.h',
'C++', 'GOOGLE_PROTOBUF_VERIFY_VERSION;')
main['HAVE_VALGRIND'] = conf.CheckCHeader('valgrind/valgrind.h')
# If we have the compiler but not the library, print another warning.
-if main['PROTOC'] and not main['HAVE_PROTOBUF']:
- print(termcap.Yellow + termcap.Bold +
- 'Warning: did not find protocol buffer library and/or headers.\n' +
- ' Please install libprotobuf-dev for tracing support.' +
- termcap.Normal)
+if main['HAVE_PROTOC'] and not main['HAVE_PROTOBUF']:
+ warning('Did not find protocol buffer library and/or headers.\n'
+ 'Please install libprotobuf-dev for tracing support.')
# Check for librt.
have_posix_clock = \
elif conf.CheckLib('tcmalloc_minimal'):
main.Append(CCFLAGS=main['TCMALLOC_CCFLAGS'])
else:
- print(termcap.Yellow + termcap.Bold +
- "You can get a 12% performance improvement by "
- "installing tcmalloc (libgoogle-perftools-dev package "
- "on Ubuntu or RedHat)." + termcap.Normal)
+ warning("You can get a 12% performance improvement by "
+ "installing tcmalloc (libgoogle-perftools-dev package "
+ "on Ubuntu or RedHat).")
# Detect back trace implementations. The last implementation in the
if backtrace_impls[-1] == "none":
default_backtrace_impl = "none"
- print(termcap.Yellow + termcap.Bold +
- "No suitable back trace implementation found." +
- termcap.Normal)
+ warning("No suitable back trace implementation found.")
if not have_posix_clock:
- print("Can't find library for POSIX clocks.")
+ warning("Can't find library for POSIX clocks.")
# Check for <fenv.h> (C99 FP environment control)
have_fenv = conf.CheckHeader('fenv.h', '<>')
if not have_fenv:
- print("Warning: Header file <fenv.h> not found.")
- print(" This host has no IEEE FP rounding mode control.")
+ warning("Header file <fenv.h> not found.\n"
+ "This host has no IEEE FP rounding mode control.")
# Check for <png.h> (libpng library needed if wanting to dump
# frame buffer image in png format)
have_png = conf.CheckHeader('png.h', '<>')
if not have_png:
- print("Warning: Header file <png.h> not found.")
- print(" This host has no libpng library.")
- print(" Disabling support for PNG framebuffers.")
+ warning("Header file <png.h> not found.\n"
+ "This host has no libpng library.\n"
+ "Disabling support for PNG framebuffers.")
# Check if we should enable KVM-based hardware virtualization. The API
# we rely on exists since version 2.6.36 of the kernel, but somehow
import platform
host_isa = platform.machine()
except:
- print("Warning: Failed to determine host ISA.")
+ warning("Failed to determine host ISA.")
return False
if not have_posix_timers:
- print("Warning: Can not enable KVM, host seems to lack support "
- "for POSIX timers")
+ warning("Can not enable KVM, host seems to lack support "
+ "for POSIX timers")
return False
if isa == "arm":
return False
if not have_kvm_xsave:
- print("KVM on x86 requires xsave support in kernel headers.")
+ warning("KVM on x86 requires xsave support in kernel headers.")
return False
return True
main['HAVE_PERF_ATTR_EXCLUDE_HOST'] = conf.CheckMember(
'linux/perf_event.h', 'struct perf_event_attr', 'exclude_host')
+def check_hdf5():
+ return \
+ conf.CheckLibWithHeader('hdf5', 'hdf5.h', 'C',
+ 'H5Fcreate("", 0, 0, 0);') and \
+ conf.CheckLibWithHeader('hdf5_cpp', 'H5Cpp.h', 'C++',
+ 'H5::H5File("", 0);')
+
+def check_hdf5_pkg(name):
+ print("Checking for %s using pkg-config..." % name, end="")
+ if not have_pkg_config:
+ print(" pkg-config not found")
+ return False
+
+ try:
+ main.ParseConfig('pkg-config --cflags-only-I --libs-only-L %s' % name)
+ print(" yes")
+ return True
+ except:
+ print(" no")
+ return False
+
+# Check if there is a pkg-config configuration for hdf5. If we find
+# it, setup the environment to enable linking and header inclusion. We
+# don't actually try to include any headers or link with hdf5 at this
+# stage.
+if not check_hdf5_pkg('hdf5-serial'):
+ check_hdf5_pkg('hdf5')
+
+# Check if the HDF5 libraries can be found. This check respects the
+# include path and library path provided by pkg-config. We perform
+# this check even if there isn't a pkg-config configuration for hdf5
+# since some installations don't use pkg-config.
+have_hdf5 = check_hdf5()
+if not have_hdf5:
+ print("Warning: Couldn't find any HDF5 C++ libraries. Disabling")
+ print(" HDF5 support.")
######################################################################
#
# Add self to dict
if name in CpuModel.dict:
- raise AttributeError, "CpuModel '%s' already registered" % name
+ raise AttributeError("CpuModel '%s' already registered" % name)
CpuModel.dict[name] = self
Export('CpuModel')
print("Reading SConsopts")
for bdir in [ base_dir ] + extras_dir_list:
if not isdir(bdir):
- print("Error: directory '%s' does not exist" % bdir)
- Exit(1)
+ error("Directory '%s' does not exist." % bdir)
for root, dirs, files in os.walk(bdir):
if 'SConsopts' in files:
if GetOption('verbose'):
EnumVariable('PROTOCOL', 'Coherence protocol for Ruby', 'None',
all_protocols),
EnumVariable('BACKTRACE_IMPL', 'Post-mortem dump implementation',
- backtrace_impls[-1], backtrace_impls)
+ backtrace_impls[-1], backtrace_impls),
+ ('NUMBER_BITS_PER_SET', 'Max elements in set (default 64)',
+ 64),
+ BoolVariable('USE_HDF5', 'Enable the HDF5 support', have_hdf5),
)
# These variables get exported to #defines in config/*.hh (see src/SConscript).
export_vars += ['USE_FENV', 'SS_COMPATIBLE_FP', 'TARGET_ISA', 'TARGET_GPU_ISA',
'CP_ANNOTATE', 'USE_POSIX_CLOCK', 'USE_KVM', 'USE_TUNTAP',
'PROTOCOL', 'HAVE_PROTOBUF', 'HAVE_VALGRIND',
- 'HAVE_PERF_ATTR_EXCLUDE_HOST', 'USE_PNG']
+ 'HAVE_PERF_ATTR_EXCLUDE_HOST', 'USE_PNG',
+ 'NUMBER_BITS_PER_SET', 'USE_HDF5']
###################################################
#
main.Append(BUILDERS = { 'PartialShared' : partial_shared_builder,
'PartialStatic' : partial_static_builder })
+def add_local_rpath(env, *targets):
+ '''Set up an RPATH for a library which lives in the build directory.
+
+ The construction environment variable BIN_RPATH_PREFIX should be set to
+ the relative path of the build directory starting from the location of the
+ binary.'''
+ for target in targets:
+ target = env.Entry(target)
+ if not isinstance(target, SCons.Node.FS.Dir):
+ target = target.dir
+ relpath = os.path.relpath(target.abspath, env['BUILDDIR'])
+ components = [
+ '\\$$ORIGIN',
+ '${BIN_RPATH_PREFIX}',
+ relpath
+ ]
+ env.Append(RPATH=[env.Literal(os.path.join(*components))])
+
+if sys.platform != "darwin":
+ main.Append(LINKFLAGS=Split('-z origin'))
+
+main.AddMethod(add_local_rpath, 'AddLocalRPATH')
+
# builds in ext are shared across all configs in the build root.
ext_dir = abspath(joinpath(str(main.root), 'ext'))
ext_build_dirs = []
main.SConscript(joinpath(root, 'SConscript'),
variant_dir=joinpath(build_root, build_dir))
+gdb_xml_dir = joinpath(ext_dir, 'gdb-xml')
+Export('gdb_xml_dir')
+
main.Prepend(CPPPATH=Dir('ext/pybind11/include/'))
###################################################
print("Variables file %s not found,\n using defaults in %s"
% (current_vars_file, default_vars_file))
else:
- print("Error: cannot find variables file %s or "
- "default file(s) %s"
+ error("Cannot find variables file %s or default file(s) %s"
% (current_vars_file, ' or '.join(default_vars_files)))
Exit(1)
# Process variable settings.
if not have_fenv and env['USE_FENV']:
- print("Warning: <fenv.h> not available; "
- "forcing USE_FENV to False in", variant_dir + ".")
+ warning("<fenv.h> not available; forcing USE_FENV to False in",
+ variant_dir + ".")
env['USE_FENV'] = False
if not env['USE_FENV']:
- print("Warning: No IEEE FP rounding mode control in",
- variant_dir + ".")
- print(" FP results may deviate slightly from other platforms.")
+ warning("No IEEE FP rounding mode control in", variant_dir + ".\n"
+ "FP results may deviate slightly from other platforms.")
if not have_png and env['USE_PNG']:
- print("Warning: <png.h> not available; "
- "forcing USE_PNG to False in", variant_dir + ".")
+ warning("<png.h> not available; forcing USE_PNG to False in",
+ variant_dir + ".")
env['USE_PNG'] = False
if env['USE_PNG']:
if env['USE_KVM']:
if not have_kvm:
- print("Warning: Can not enable KVM, host seems to "
- "lack KVM support")
+ warning("Can not enable KVM, host seems to lack KVM support")
env['USE_KVM'] = False
elif not is_isa_kvm_compatible(env['TARGET_ISA']):
print("Info: KVM support disabled due to unsupported host and "
if env['USE_TUNTAP']:
if not have_tuntap:
- print("Warning: Can't connect EtherTap with a tap device.")
+ warning("Can't connect EtherTap with a tap device.")
env['USE_TUNTAP'] = False
if env['BUILD_GPU']:
# Warn about missing optional functionality
if env['USE_KVM']:
if not main['HAVE_PERF_ATTR_EXCLUDE_HOST']:
- print("Warning: perf_event headers lack support for the "
- "exclude_host attribute. KVM instruction counts will "
- "be inaccurate.")
+ warning("perf_event headers lack support for the exclude_host "
+ "attribute. KVM instruction counts will be inaccurate.")
# Save sticky variable settings back to current variables file
sticky_vars.Save(current_vars_file, env)
if env['USE_SSE2']:
env.Append(CCFLAGS=['-msse2'])
+ env.Append(CCFLAGS='$CCFLAGS_EXTRA')
+ env.Append(LINKFLAGS='$LDFLAGS_EXTRA')
+
# 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.)