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-rwxr-xr-xSConstruct251
1 files changed, 128 insertions, 123 deletions
diff --git a/SConstruct b/SConstruct
index df647e725..0bb0f69a2 100755
--- a/SConstruct
+++ b/SConstruct
@@ -78,6 +78,8 @@
#
###################################################
+from __future__ import print_function
+
# Global Python includes
import itertools
import os
@@ -164,7 +166,7 @@ AddLocalOption('--with-asan', dest='with_asan', action='store_true',
help='Build with Address Sanitizer if available')
if GetOption('no_lto') and GetOption('force_lto'):
- print '--no-lto and --force-lto are mutually exclusive'
+ print('--no-lto and --force-lto are mutually exclusive')
Exit(1)
########################################################################
@@ -183,7 +185,7 @@ main_dict_keys = main.Dictionary().keys()
# 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)"
+ print("No C++ compiler installed (package g++ on Ubuntu and RedHat)")
Exit(1)
###################################################
@@ -230,15 +232,15 @@ for t in BUILD_TARGETS:
try:
build_top = rfind(path_dirs, 'build', -2)
except:
- print "Error: no non-leaf 'build' dir found on target path", t
+ print("Error: no non-leaf 'build' dir found on target path", t)
Exit(1)
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"\
- " %s\n %s" % (build_root, this_build_root)
+ print("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:
@@ -335,7 +337,7 @@ CXX_V = readCommand([main['CXX'],'-V'], exception=False)
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?'
+ print('Error: How can we have two at the same time?')
Exit(1)
# Set up default C++ compiler flags
@@ -367,22 +369,22 @@ if main['GCC'] or main['CLANG']:
'-Wno-error=deprecated',
])
else:
- print termcap.Yellow + termcap.Bold + 'Error' + termcap.Normal,
- 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,
+ 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
+ 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."
+ 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)
if main['GCC']:
@@ -391,8 +393,8 @@ if main['GCC']:
# 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
+ print('Error: gcc version 4.8 or newer required.')
+ print(' Installed version: ', gcc_version)
Exit(1)
main['GCC_VERSION'] = gcc_version
@@ -433,31 +435,31 @@ if main['GCC']:
as_version = as_version_raw[-1].split('-')[0] if as_version_raw else None
if not as_version or compareVersions(as_version, "2.23") < 0:
- print termcap.Yellow + termcap.Bold + \
- 'Warning: This combination of gcc and binutils have' + \
- ' known incompatibilities.\n' + \
- ' If you encounter build problems, please update ' + \
- 'binutils to 2.23.' + \
- termcap.Normal
+ print(termcap.Yellow + termcap.Bold +
+ 'Warning: This combination of gcc and binutils have' +
+ ' known incompatibilities.\n' +
+ ' If you encounter build problems, please update ' +
+ 'binutils to 2.23.' +
+ termcap.Normal)
# 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
+ 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
+ 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)
disable_lto = True
# Add the appropriate Link-Time Optimization (LTO) flags
@@ -508,11 +510,11 @@ elif main['CLANG']:
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
+ print('Error: clang version 3.1 or newer required.')
+ print(' Installed version:', clang_version)
Exit(1)
else:
- print 'Error: Unable to determine clang version.'
+ print('Error: Unable to determine clang version.')
Exit(1)
# clang has a few additional warnings that we disable, extraneous
@@ -556,22 +558,22 @@ elif main['CLANG']:
LINKFLAGS='-fsanitize=address')
else:
- print termcap.Yellow + termcap.Bold + 'Error' + termcap.Normal,
- 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,
+ 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
+ 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."
+ 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)
# Set up common yacc/bison flags (needed for Ruby)
@@ -597,21 +599,21 @@ protoc_version = readCommand([main['PROTOC'], '--version'],
# 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
+ 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
+ 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
else:
# Attempt to determine the appropriate include path and
@@ -626,9 +628,9 @@ else:
# 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
+ print(termcap.Yellow + termcap.Bold +
+ 'Warning: pkg-config could not get protobuf flags.' +
+ termcap.Normal)
# Check for 'timeout' from GNU coreutils. If present, regressions will
@@ -708,7 +710,7 @@ if not conf:
# Cache build files in the supplied directory.
if main['M5_BUILD_CACHE']:
- print 'Using build cache located at', main['M5_BUILD_CACHE']
+ print('Using build cache located at', main['M5_BUILD_CACHE'])
CacheDir(main['M5_BUILD_CACHE'])
main['USE_PYTHON'] = not GetOption('without_python')
@@ -748,27 +750,28 @@ if main['USE_PYTHON']:
# verify that this stuff works
if not conf.CheckHeader('Python.h', '<>'):
- print "Error: can't find Python.h header in", py_includes
- print "Install Python headers (package python-dev on Ubuntu and RedHat)"
+ print("Error: can't find Python.h header in", py_includes)
+ print("Install Python headers (package python-dev on " +
+ "Ubuntu and RedHat)")
Exit(1)
for lib in py_libs:
if not conf.CheckLib(lib):
- print "Error: can't find library %s required by python" % lib
+ print("Error: can't find library %s required by python" % lib)
Exit(1)
# 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())"
+ print("Can't find library with socket calls (e.g. accept())")
Exit(1)
# 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.'
+ print('Error: did not find needed zlib compression library '
+ 'and/or zlib.h header file.')
+ print(' Please install zlib and try again.')
Exit(1)
# If we have the protobuf compiler, also make sure we have the
@@ -782,10 +785,10 @@ main['HAVE_PROTOBUF'] = main['PROTOC'] and \
# 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
+ 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)
# Check for librt.
have_posix_clock = \
@@ -804,10 +807,10 @@ if not GetOption('without_tcmalloc'):
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
+ 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)
# Detect back trace implementations. The last implementation in the
@@ -826,26 +829,26 @@ elif conf.CheckLibWithHeader('execinfo', 'execinfo.h', 'C',
if backtrace_impls[-1] == "none":
default_backtrace_impl = "none"
- print termcap.Yellow + termcap.Bold + \
- "No suitable back trace implementation found." + \
- termcap.Normal
+ print(termcap.Yellow + termcap.Bold +
+ "No suitable back trace implementation found." +
+ termcap.Normal)
if not have_posix_clock:
- print "Can't find library for POSIX clocks."
+ print("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."
+ print("Warning: Header file <fenv.h> not found.")
+ print(" 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."
+ print("Warning: Header file <png.h> not found.")
+ print(" This host has no libpng library.")
+ print(" 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
@@ -853,13 +856,13 @@ if not have_png:
# the types as a fall back.
have_kvm = conf.CheckHeader('linux/kvm.h', '<>')
if not have_kvm:
- print "Info: Compatible header file <linux/kvm.h> not found, " \
- "disabling KVM support."
+ print("Info: Compatible header file <linux/kvm.h> not found, "
+ "disabling KVM support.")
# Check if the TUN/TAP driver is available.
have_tuntap = conf.CheckHeader('linux/if_tun.h', '<>')
if not have_tuntap:
- print "Info: Compatible header file <linux/if_tun.h> not found."
+ print("Info: Compatible header file <linux/if_tun.h> not found.")
# x86 needs support for xsave. We test for the structure here since we
# won't be able to run new tests by the time we know which ISA we're
@@ -873,12 +876,12 @@ def is_isa_kvm_compatible(isa):
import platform
host_isa = platform.machine()
except:
- print "Warning: Failed to determine host ISA."
+ print("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"
+ print("Warning: Can not enable KVM, host seems to lack support "
+ "for POSIX timers")
return False
if isa == "arm":
@@ -888,7 +891,7 @@ def is_isa_kvm_compatible(isa):
return False
if not have_kvm_xsave:
- print "KVM on x86 requires xsave support in kernel headers."
+ print("KVM on x86 requires xsave support in kernel headers.")
return False
return True
@@ -961,15 +964,15 @@ Export('slicc_includes')
# Walk the tree and execute all SConsopts scripts that wil add to the
# above variables
if GetOption('verbose'):
- print "Reading SConsopts"
+ print("Reading SConsopts")
for bdir in [ base_dir ] + extras_dir_list:
if not isdir(bdir):
- print "Error: directory '%s' does not exist" % bdir
+ print("Error: directory '%s' does not exist" % bdir)
Exit(1)
for root, dirs, files in os.walk(bdir):
if 'SConsopts' in files:
if GetOption('verbose'):
- print "Reading", joinpath(root, 'SConsopts')
+ print("Reading", joinpath(root, 'SConsopts'))
SConscript(joinpath(root, 'SConsopts'))
all_isa_list.sort()
@@ -1025,7 +1028,7 @@ export_vars += ['USE_FENV', 'SS_COMPATIBLE_FP', 'TARGET_ISA', 'TARGET_GPU_ISA',
def build_config_file(target, source, env):
(variable, value) = [s.get_contents() for s in source]
f = file(str(target[0]), 'w')
- print >> f, '#define', variable, value
+ print('#define', variable, value, file=f)
f.close()
return None
@@ -1107,7 +1110,7 @@ def build_switching_header(target, source, env):
dp = os.path.relpath(os.path.realpath(dp),
os.path.realpath(env['BUILDDIR']))
with open(path, 'w') as hdr:
- print >>hdr, '#include "%s/%s/%s"' % (dp, subdir, fp)
+ print('#include "%s/%s/%s"' % (dp, subdir, fp), file=hdr)
switching_header_action = MakeAction(build_switching_header,
Transform('GENERATE'))
@@ -1132,7 +1135,7 @@ main.AddMethod(switching_headers, 'SwitchingHeaders')
for variant_path in variant_paths:
if not GetOption('silent'):
- print "Building in", variant_path
+ print("Building in", variant_path)
# Make a copy of the build-root environment to use for this config.
env = main.Clone()
@@ -1151,7 +1154,7 @@ for variant_path in variant_paths:
if isfile(current_vars_file):
sticky_vars.files.append(current_vars_file)
if not GetOption('silent'):
- print "Using saved variables file %s" % current_vars_file
+ print("Using saved variables file %s" % current_vars_file)
elif variant_dir in ext_build_dirs:
# Things in ext are built without a variant directory.
continue
@@ -1177,12 +1180,12 @@ for variant_path in variant_paths:
if existing_files:
default_vars_file = existing_files[0]
sticky_vars.files.append(default_vars_file)
- print "Variables file %s not found,\n using defaults in %s" \
- % (current_vars_file, default_vars_file)
+ 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" \
- % (current_vars_file, ' or '.join(default_vars_files))
+ print("Error: cannot find variables file %s or "
+ "default file(s) %s"
+ % (current_vars_file, ' or '.join(default_vars_files)))
Exit(1)
# Apply current variable settings to env
@@ -1195,17 +1198,18 @@ for variant_path in variant_paths:
# 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 + "."
+ print("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."
+ print("Warning: No IEEE FP rounding mode control in",
+ variant_dir + ".")
+ print(" 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 + "."
+ print("Warning: <png.h> not available; "
+ "forcing USE_PNG to False in", variant_dir + ".")
env['USE_PNG'] = False
if env['USE_PNG']:
@@ -1216,16 +1220,17 @@ for variant_path in variant_paths:
if env['USE_KVM']:
if not have_kvm:
- print "Warning: Can not enable KVM, host seems to lack KVM support"
+ print("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 " \
- "target ISA combination"
+ print("Info: KVM support disabled due to unsupported host and "
+ "target ISA combination")
env['USE_KVM'] = False
if env['USE_TUNTAP']:
if not have_tuntap:
- print "Warning: Can't connect EtherTap with a tap device."
+ print("Warning: Can't connect EtherTap with a tap device.")
env['USE_TUNTAP'] = False
if env['BUILD_GPU']:
@@ -1234,9 +1239,9 @@ for variant_path in variant_paths:
# 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."
+ print("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)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 09:29:48 +0000