2e2d9b5c35
into zamp.eecs.umich.edu:/z/ktlim2/m5 --HG-- extra : convert_revision : 95e94251150a3eea380b6b3bc3a9596e188df315
292 lines
11 KiB
Python
292 lines
11 KiB
Python
# -*- mode:python -*-
|
|
|
|
# Copyright (c) 2004 The Regents of The University of Michigan
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are
|
|
# met: redistributions of source code must retain the above copyright
|
|
# notice, this list of conditions and the following disclaimer;
|
|
# redistributions in binary form must reproduce the above copyright
|
|
# notice, this list of conditions and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution;
|
|
# neither the name of the copyright holders nor the names of its
|
|
# contributors may be used to endorse or promote products derived from
|
|
# this software without specific prior written permission.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
###################################################
|
|
#
|
|
# SCons top-level build description (SConstruct) file.
|
|
#
|
|
# To build M5, you need a directory with three things:
|
|
# 1. A copy of this file (named SConstruct).
|
|
# 2. A link named 'm5' to the top of the M5 simulator source tree.
|
|
# 3. A link named 'ext' to the top of the M5 external source tree.
|
|
#
|
|
# Then type 'scons' to build the default configuration (see below), or
|
|
# 'scons <CONFIG>/<binary>' to build some other configuration (e.g.,
|
|
# 'KERNEL/m5.opt' for the optimized full-system version).
|
|
#
|
|
###################################################
|
|
|
|
# Python library imports
|
|
import sys
|
|
import os
|
|
|
|
# The absolute path to the current directory (where this file lives).
|
|
ROOT = Dir('.').abspath
|
|
|
|
# Paths to the M5 and external source trees (local symlinks).
|
|
SRCDIR = os.path.join(ROOT, 'm5')
|
|
EXT_SRCDIR = os.path.join(ROOT, 'ext')
|
|
|
|
# Check for 'm5' and 'ext' links, die if they don't exist.
|
|
if not os.path.isdir(SRCDIR):
|
|
print "Error: '%s' must be a link to the M5 source tree." % SRCDIR
|
|
sys.exit(1)
|
|
|
|
if not os.path.isdir('ext'):
|
|
print "Error: '%s' must be a link to the M5 external source tree." \
|
|
% EXT_SRCDIR
|
|
sys.exit(1)
|
|
|
|
# tell python where to find m5 python code
|
|
sys.path.append(os.path.join(SRCDIR, 'python'))
|
|
|
|
|
|
###################################################
|
|
#
|
|
# Define Configurations
|
|
#
|
|
# The build system infers the build options from the subdirectory name
|
|
# that the simulator is built under. The subdirectory name must be of
|
|
# the form <CONFIG>[.<OPT>]*, where <CONFIG> is a base configuration
|
|
# (e.g., ALPHA or KERNEL) and OPT is an option (e.g., MYSQL). The
|
|
# following code defines the standard configurations and options.
|
|
# Additional local configurations and options are read from the file
|
|
# 'local_configs' if it exists.
|
|
#
|
|
# Each base configuration or option is defined in two steps: a
|
|
# function that takes an SCons build environment and modifies it
|
|
# appropriately for that config or option, and an entry in the
|
|
# 'configs_map' or 'options_map' dictionary that maps the directory
|
|
# name string to the function. (The directory names are all upper
|
|
# case, by convention.)
|
|
#
|
|
###################################################
|
|
|
|
# Base non-full-system Alpha ISA configuration.
|
|
def AlphaConfig(env):
|
|
env.Replace(TARGET_ISA = 'alpha')
|
|
env.Append(CPPDEFINES = 'SS_COMPATIBLE_FP')
|
|
|
|
# Base full-system configuration.
|
|
def KernelConfig(env):
|
|
env.Replace(TARGET_ISA = 'alpha')
|
|
env.Replace(FULL_SYSTEM = True)
|
|
env.Append(CPPDEFINES = ['FULL_SYSTEM'])
|
|
|
|
# Base configurations map.
|
|
configs_map = {
|
|
'ALPHA' : AlphaConfig,
|
|
'KERNEL' : KernelConfig
|
|
}
|
|
|
|
# Disable FastAlloc object allocation.
|
|
def NoFastAllocOpt(env):
|
|
env.Append(CPPDEFINES = 'NO_FAST_ALLOC')
|
|
|
|
# Enable efence
|
|
def EfenceOpt(env):
|
|
env.Append(LIBS=['efence'])
|
|
|
|
# Configuration options map.
|
|
options_map = {
|
|
'NO_FAST_ALLOC' : NoFastAllocOpt,
|
|
'EFENCE' : EfenceOpt
|
|
}
|
|
|
|
# The 'local_configs' file can be used to define additional base
|
|
# configurations and/or options without changing this file.
|
|
if os.path.isfile('local_configs'):
|
|
SConscript('local_configs', exports = ['configs_map', 'options_map'])
|
|
|
|
# This function parses a directory name of the form <CONFIG>[.<OPT>]*
|
|
# and sets up the build environment appropriately. Returns True if
|
|
# successful, False if the base config or any of the options were not
|
|
# defined.
|
|
def set_dir_options(dir, env):
|
|
parts = dir.split('.')
|
|
config = parts[0]
|
|
opts = parts[1:]
|
|
try:
|
|
configs_map[config](env)
|
|
map(lambda opt: options_map[opt](env), opts)
|
|
return True
|
|
except KeyError, key:
|
|
print "Config/option '%s' not found." % key
|
|
return False
|
|
|
|
# Set the default configuration and binary. The default target (if
|
|
# scons is invoked at the top level with no command-line targets) is
|
|
# 'ALPHA/m5.debug'. If scons is invoked in a subdirectory with no
|
|
# command-line targets, the configuration
|
|
|
|
###################################################
|
|
#
|
|
# Figure out which configurations to set up.
|
|
#
|
|
#
|
|
# It's prohibitive to do all the combinations of base configurations
|
|
# and options, so we have to infer which ones the user wants.
|
|
#
|
|
# 1. If there are command-line targets, the configuration(s) are inferred
|
|
# from the directories of those targets. If scons was invoked from a
|
|
# subdirectory (using 'scons -u'), those targets have to be
|
|
# interpreted relative to that subdirectory.
|
|
#
|
|
# 2. If there are no command-line targets, and scons was invoked from a
|
|
# subdirectory (using 'scons -u'), the configuration is inferred from
|
|
# the name of the subdirectory.
|
|
#
|
|
# 3. If there are no command-line targets and scons was invoked from
|
|
# the root build directory, a default configuration is used. The
|
|
# built-in default is ALPHA, but this can be overridden by setting the
|
|
# M5_DEFAULT_CONFIG shell environment veriable.
|
|
#
|
|
# In cases 2 & 3, the specific file target defaults to 'm5.debug', but
|
|
# this can be overridden by setting the M5_DEFAULT_BINARY shell
|
|
# environment veriable.
|
|
#
|
|
###################################################
|
|
|
|
# Find default configuration & binary.
|
|
default_config = os.environ.get('M5_DEFAULT_CONFIG', 'ALPHA')
|
|
default_binary = os.environ.get('M5_DEFAULT_BINARY', 'm5.debug')
|
|
|
|
# Ask SCons which directory it was invoked from. If you invoke SCons
|
|
# from a subdirectory you must use the '-u' flag.
|
|
launch_dir = GetLaunchDir()
|
|
|
|
# Build a list 'my_targets' of all the targets relative to ROOT.
|
|
if launch_dir == ROOT:
|
|
# invoked from root build dir
|
|
if len(COMMAND_LINE_TARGETS) != 0:
|
|
# easy: use specified targets as is
|
|
my_targets = COMMAND_LINE_TARGETS
|
|
else:
|
|
# default target (ALPHA/m5.debug, unless overridden)
|
|
target = os.path.join(default_config, default_binary)
|
|
my_targets = [target]
|
|
Default(target)
|
|
else:
|
|
# invoked from subdirectory
|
|
if not launch_dir.startswith(ROOT):
|
|
print "Error: launch dir (%s) not a subdirectory of ROOT (%s)!" \
|
|
(launch_dir, ROOT)
|
|
sys.exit(1)
|
|
# make launch_dir relative to ROOT (strip ROOT plus slash off front)
|
|
launch_dir = launch_dir[len(ROOT)+1:]
|
|
if len(COMMAND_LINE_TARGETS) != 0:
|
|
# make specified targets relative to ROOT
|
|
my_targets = map(lambda x: os.path.join(launch_dir, x),
|
|
COMMAND_LINE_TARGETS)
|
|
else:
|
|
# build default binary (m5.debug, unless overridden) using the
|
|
# config inferred by the invocation directory (the first
|
|
# subdirectory after ROOT)
|
|
target = os.path.join(launch_dir.split('/')[0], default_binary)
|
|
my_targets = [target]
|
|
Default(target)
|
|
|
|
# Normalize target paths (gets rid of '..' in the middle, etc.)
|
|
my_targets = map(os.path.normpath, my_targets)
|
|
|
|
# Generate a list of the unique configs that the collected targets reference.
|
|
build_dirs = []
|
|
for t in my_targets:
|
|
dir = t.split('/')[0]
|
|
if dir not in build_dirs:
|
|
build_dirs.append(dir)
|
|
|
|
###################################################
|
|
#
|
|
# Set up the default build environment. This environment is copied
|
|
# and modified according to each selected configuration.
|
|
#
|
|
###################################################
|
|
|
|
default_env = Environment(ENV = os.environ, # inherit user's enviroment vars
|
|
ROOT = ROOT,
|
|
SRCDIR = SRCDIR,
|
|
EXT_SRCDIR = EXT_SRCDIR,
|
|
CPPDEFINES = [],
|
|
FULL_SYSTEM = False,
|
|
USE_MYSQL = False)
|
|
|
|
default_env.SConsignFile("sconsign")
|
|
|
|
# For some reason, the CC and CXX variables don't get passed into the
|
|
# environment correctly. This is probably some sort of scons bug that
|
|
# will eventually be fixed.
|
|
if os.environ.has_key('CC'):
|
|
default_env.Replace(CC=os.environ['CC'])
|
|
|
|
if os.environ.has_key('CXX'):
|
|
default_env.Replace(CXX=os.environ['CXX'])
|
|
|
|
# M5_EXT is used by isa_parser.py to find the PLY package.
|
|
default_env.Append(ENV = { 'M5_EXT' : EXT_SRCDIR })
|
|
|
|
default_env.Append(CCFLAGS='-pipe')
|
|
default_env.Append(CCFLAGS='-fno-strict-aliasing')
|
|
default_env.Append(CCFLAGS=Split('-Wall -Wno-sign-compare -Werror -Wundef'))
|
|
default_env.Append(CPPPATH=[os.path.join(EXT_SRCDIR + '/dnet')])
|
|
|
|
# libelf build is described in its own SConscript file. Using a
|
|
# dictionary for exports lets us export "default_env" so the
|
|
# SConscript will see it as "env". SConscript-global is the build in
|
|
# build/libelf shared among all configs.
|
|
default_env.SConscript('m5/libelf/SConscript-global',
|
|
exports={'env' : default_env})
|
|
|
|
###################################################
|
|
#
|
|
# Define build environments for selected configurations.
|
|
#
|
|
###################################################
|
|
|
|
for build_dir in build_dirs:
|
|
# Make a copy of the default environment to use for this config.
|
|
env = default_env.Copy()
|
|
# Modify 'env' according to the build directory config.
|
|
print "Configuring options for directory '%s'." % build_dir
|
|
if not set_dir_options(build_dir, env):
|
|
print "Skipping directory '%s'." % build_dir
|
|
continue
|
|
|
|
# The m5/SConscript file sets up the build rules in 'env' according
|
|
# to the configured options.
|
|
SConscript('m5/SConscript', build_dir = build_dir, exports = 'env',
|
|
duplicate=0)
|
|
|
|
|
|
###################################################
|
|
#
|
|
# Let SCons do its thing. At this point SCons will use the defined
|
|
# build environments to build the requested targets.
|
|
#
|
|
###################################################
|
|
|