1b39eb38bd
build/SConstruct:
Only the major and minor mysql version numbers are guaranteed
to be integers (e.g. 4.1.10a), and since that's all we care about
only try to deal with those.
for older versions of mysql, the strings returned by mysql_config may
have quotes in them, remove those so things work
--HG--
extra : convert_revision : de32f3e76618f0caf4d5578edd61beaeef666eb6
320 lines
12 KiB
Python
320 lines
12 KiB
Python
# -*- mode:python -*-
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# Copyright (c) 2004-2005 The Regents of The University of Michigan
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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###################################################
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#
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# SCons top-level build description (SConstruct) file.
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#
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# To build M5, you need a directory with three things:
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# 1. A copy of this file (named SConstruct).
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# 2. A link named 'm5' to the top of the M5 simulator source tree.
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# 3. A link named 'ext' to the top of the M5 external source tree.
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#
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# Then type 'scons' to build the default configuration (see below), or
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# 'scons <CONFIG>/<binary>' to build some other configuration (e.g.,
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# 'ALPHA_FS/m5.opt' for the optimized full-system version).
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#
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###################################################
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# Python library imports
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import sys
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import os
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# Check for recent-enough Python and SCons versions
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EnsurePythonVersion(2,3)
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EnsureSConsVersion(0,96)
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# The absolute path to the current directory (where this file lives).
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ROOT = Dir('.').abspath
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# Paths to the M5 and external source trees (local symlinks).
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SRCDIR = os.path.join(ROOT, 'm5')
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EXT_SRCDIR = os.path.join(ROOT, 'ext')
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# Check for 'm5' and 'ext' links, die if they don't exist.
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if not os.path.isdir(SRCDIR):
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print "Error: '%s' must be a link to the M5 source tree." % SRCDIR
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Exit(1)
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if not os.path.isdir('ext'):
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print "Error: '%s' must be a link to the M5 external source tree." \
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% EXT_SRCDIR
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Exit(1)
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# tell python where to find m5 python code
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sys.path.append(os.path.join(SRCDIR, 'python'))
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###################################################
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#
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# Figure out which configurations to set up.
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#
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#
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# It's prohibitive to do all the combinations of base configurations
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# and options, so we have to infer which ones the user wants.
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#
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# 1. If there are command-line targets, the configuration(s) are inferred
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# from the directories of those targets. If scons was invoked from a
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# subdirectory (using 'scons -u'), those targets have to be
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# interpreted relative to that subdirectory.
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#
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# 2. If there are no command-line targets, and scons was invoked from a
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# subdirectory (using 'scons -u'), the configuration is inferred from
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# the name of the subdirectory.
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#
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# 3. If there are no command-line targets and scons was invoked from
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# the root build directory, a default configuration is used. The
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# built-in default is ALPHA_SE, but this can be overridden by setting the
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# M5_DEFAULT_CONFIG shell environment veriable.
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#
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# In cases 2 & 3, the specific file target defaults to 'm5.debug', but
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# this can be overridden by setting the M5_DEFAULT_BINARY shell
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# environment veriable.
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#
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###################################################
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# Find default configuration & binary.
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default_config = os.environ.get('M5_DEFAULT_CONFIG', 'ALPHA_SE')
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default_binary = os.environ.get('M5_DEFAULT_BINARY', 'm5.debug')
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# Ask SCons which directory it was invoked from. If you invoke SCons
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# from a subdirectory you must use the '-u' flag.
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launch_dir = GetLaunchDir()
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# Build a list 'my_targets' of all the targets relative to ROOT.
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if launch_dir == ROOT:
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# invoked from root build dir
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if len(COMMAND_LINE_TARGETS) != 0:
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# easy: use specified targets as is
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my_targets = COMMAND_LINE_TARGETS
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else:
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# default target (ALPHA_SE/m5.debug, unless overridden)
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target = os.path.join(default_config, default_binary)
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my_targets = [target]
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Default(target)
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else:
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# invoked from subdirectory
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if not launch_dir.startswith(ROOT):
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print "Error: launch dir (%s) not a subdirectory of ROOT (%s)!" \
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(launch_dir, ROOT)
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Exit(1)
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# make launch_dir relative to ROOT (strip ROOT plus slash off front)
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launch_dir = launch_dir[len(ROOT)+1:]
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if len(COMMAND_LINE_TARGETS) != 0:
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# make specified targets relative to ROOT
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my_targets = map(lambda x: os.path.join(launch_dir, x),
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COMMAND_LINE_TARGETS)
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else:
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# build default binary (m5.debug, unless overridden) using the
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# config inferred by the invocation directory (the first
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# subdirectory after ROOT)
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target = os.path.join(launch_dir.split('/')[0], default_binary)
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my_targets = [target]
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Default(target)
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# Normalize target paths (gets rid of '..' in the middle, etc.)
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my_targets = map(os.path.normpath, my_targets)
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# Generate a list of the unique configs that the collected targets reference.
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build_dirs = []
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for t in my_targets:
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dir = t.split('/')[0]
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if dir not in build_dirs:
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build_dirs.append(dir)
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###################################################
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#
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# Set up the default build environment. This environment is copied
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# and modified according to each selected configuration.
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#
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###################################################
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env = Environment(ENV = os.environ, # inherit user's environment vars
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ROOT = ROOT,
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SRCDIR = SRCDIR,
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EXT_SRCDIR = EXT_SRCDIR)
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env.SConsignFile("sconsign")
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if os.environ.has_key('CC'):
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env.Replace(CC=os.environ['CC'])
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if os.environ.has_key('CXX'):
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env.Replace(CXX=os.environ['CXX'])
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# M5_EXT is used by isa_parser.py to find the PLY package.
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env.Append(ENV = { 'M5_EXT' : EXT_SRCDIR })
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# Set up default C++ compiler flags
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env.Append(CCFLAGS='-pipe')
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env.Append(CCFLAGS='-fno-strict-aliasing')
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env.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef'))
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if sys.platform == 'cygwin':
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# cygwin has some header file issues...
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env.Append(CCFLAGS=Split("-Wno-uninitialized"))
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env.Append(CPPPATH=[os.path.join(EXT_SRCDIR + '/dnet')])
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# Default libraries
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env.Append(LIBS=['z'])
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# Platform-specific configuration
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conf = Configure(env)
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# Check for <fenv.h> (C99 FP environment control)
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have_fenv = conf.CheckHeader('fenv.h', '<>')
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if not have_fenv:
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print "Warning: Header file <fenv.h> not found."
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print " This host has no IEEE FP rounding mode control."
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# Check for mysql.
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mysql_config = WhereIs('mysql_config')
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have_mysql = mysql_config != None
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# Check MySQL version.
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if have_mysql:
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mysql_version = os.popen(mysql_config + ' --version').read()
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mysql_version = mysql_version.split('.')
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mysql_major = int(mysql_version[0])
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mysql_minor = int(mysql_version[1])
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# This version check is probably overly conservative, but it deals
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# with the versions we have installed.
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if mysql_major < 3 or \
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mysql_major == 3 and mysql_minor < 23 or \
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mysql_major == 4 and mysql_minor < 1:
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print "Warning: MySQL v3.23 or v4.1 or newer required."
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have_mysql = False
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# Set up mysql_config commands.
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if have_mysql:
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mysql_config_include = mysql_config + ' --include'
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if os.system(mysql_config_include + ' > /dev/null') != 0:
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# older mysql_config versions don't support --include, use
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# --cflags instead
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mysql_config_include = mysql_config + ' --cflags | sed s/\\\'//g'
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# This seems to work in all versions
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mysql_config_libs = mysql_config + ' --libs'
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env = conf.Finish()
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# The source operand is a Value node containing the value of the option.
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def build_config_file(target, source, env, option):
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f = file(str(target[0]), 'w')
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print >> f, '#define', option, source[0]
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f.close()
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return None
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def config_builder(env, option):
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target = os.path.join('config', option.lower() + '.hh')
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source = Value(env[option])
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def my_build_config_file(target, source, env):
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build_config_file(target, source, env, option)
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env.Command(target, source, my_build_config_file)
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env.Append(BUILDERS = { 'ConfigFile' : config_builder })
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# libelf build is described in its own SConscript file.
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# SConscript-global is the build in build/libelf shared among all
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# configs.
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env.SConscript('m5/libelf/SConscript-global', exports = 'env')
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###################################################
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#
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# Define build environments for selected configurations.
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#
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###################################################
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# rename base env
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base_env = env
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for build_dir in build_dirs:
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# Make a copy of the default environment to use for this config.
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env = base_env.Copy()
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# Set env according to the build directory config.
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options_file = os.path.join('build_options', build_dir)
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if not os.path.isfile(options_file):
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print "Options file %s not found, using defaults." % options_file
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opts = Options(options_file, ARGUMENTS)
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opts.AddOptions(
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EnumOption('TARGET_ISA', 'Target ISA', 'alpha', ('alpha')),
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BoolOption('FULL_SYSTEM', 'Full-system support', False),
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BoolOption('ALPHA_TLASER',
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'Model Alpha TurboLaser platform (vs. Tsunami)', False),
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BoolOption('NO_FAST_ALLOC', 'Disable fast object allocator', False),
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BoolOption('EFENCE', 'Link with Electric Fence malloc debugger',
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False),
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BoolOption('SS_COMPATIBLE_FP',
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'Make floating-point results compatible with SimpleScalar',
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False),
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BoolOption('STATS_BINNING', 'Bin statistics by CPU mode', have_mysql),
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BoolOption('USE_MYSQL', 'Use MySQL for stats output', have_mysql),
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BoolOption('USE_FENV', 'Use <fenv.h> IEEE mode control', have_fenv)
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)
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opts.Update(env)
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opts.Save(options_file, env)
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env.ExportOptions = ['FULL_SYSTEM', 'ALPHA_TLASER', 'USE_FENV', \
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'USE_MYSQL', 'NO_FAST_ALLOC', 'SS_COMPATIBLE_FP', \
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'STATS_BINNING']
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# Process option settings.
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if not have_fenv and env['USE_FENV']:
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print "Warning: <fenv.h> not available; " \
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"forcing USE_FENV to False in", build_dir + "."
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env['USE_FENV'] = False
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if not env['USE_FENV']:
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print "Warning: No IEEE FP rounding mode control in", build_dir + "."
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print " FP results may deviate slightly", \
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"and some regression tests may fail."
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if env['EFENCE']:
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env.Append(LIBS=['efence'])
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if env['USE_MYSQL']:
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if not have_mysql:
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print "Warning: MySQL not available; " \
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"forcing USE_MYSQL to False in", build_dir + "."
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env['USE_MYSQL'] = False
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else:
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print "Compiling in", build_dir, "with MySQL support."
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env.ParseConfig(mysql_config_libs)
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env.ParseConfig(mysql_config_include)
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# The m5/SConscript file sets up the build rules in 'env' according
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# to the configured options.
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SConscript('m5/SConscript', build_dir = build_dir, exports = 'env',
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duplicate=0)
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###################################################
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#
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# Let SCons do its thing. At this point SCons will use the defined
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# build environments to build the requested targets.
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#
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###################################################
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