-# Default duplicate option is to use hard links, but this messes up
-# when you use emacs to edit a file in the target dir, as emacs moves
-# file to file~ then copies to file, breaking the link. Symbolic
-# (soft) links work better.
-env.SetOption('duplicate', 'soft-copy')
-
-# I waffle on this setting... it does avoid a few painful but
-# unnecessary builds, but it also seems to make trivial builds take
-# noticeably longer.
-if False:
- env.TargetSignatures('content')
-
-# M5_PLY is used by isa_parser.py to find the PLY package.
-env.Append(ENV = { 'M5_PLY' : Dir('ext/ply') })
-env['GCC'] = False
-env['SUNCC'] = False
-env['ICC'] = False
-env['GCC'] = subprocess.Popen(env['CXX'] + ' --version', shell=True,
- stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
- close_fds=True).communicate()[0].find('GCC') >= 0
-env['SUNCC'] = subprocess.Popen(env['CXX'] + ' -V', shell=True,
- stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
- close_fds=True).communicate()[0].find('Sun C++') >= 0
-env['ICC'] = subprocess.Popen(env['CXX'] + ' -V', shell=True,
- stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
- close_fds=True).communicate()[0].find('Intel') >= 0
-if env['GCC'] + env['SUNCC'] + env['ICC'] > 1:
+# Update main environment with values from ARGUMENTS & global_sticky_vars_file
+global_sticky_vars.Update(main)
+global_nonsticky_vars.Update(main)
+
+help_text += global_sticky_vars.GenerateHelpText(main)
+help_text += global_nonsticky_vars.GenerateHelpText(main)
+
+# Save sticky variable settings back to current variables file
+global_sticky_vars.Save(global_sticky_vars_file, main)
+
+# Parse EXTRAS variable to build list of all directories where we're
+# look for sources etc. This list is exported as base_dir_list.
+base_dir = main.srcdir.abspath
+if main['EXTRAS']:
+ extras_dir_list = main['EXTRAS'].split(':')
+else:
+ extras_dir_list = []
+
+Export('base_dir')
+Export('extras_dir_list')
+
+# the ext directory should be on the #includes path
+main.Append(CPPPATH=[Dir('ext')])
+
+def strip_build_path(path, env):
+ path = str(path)
+ variant_base = env['BUILDROOT'] + os.path.sep
+ if path.startswith(variant_base):
+ path = path[len(variant_base):]
+ elif path.startswith('build/'):
+ path = path[6:]
+ return path
+
+# Generate a string of the form:
+# common/path/prefix/src1, src2 -> tgt1, tgt2
+# to print while building.
+class Transform(object):
+ # all specific color settings should be here and nowhere else
+ tool_color = termcap.Normal
+ pfx_color = termcap.Yellow
+ srcs_color = termcap.Yellow + termcap.Bold
+ arrow_color = termcap.Blue + termcap.Bold
+ tgts_color = termcap.Yellow + termcap.Bold
+
+ def __init__(self, tool, max_sources=99):
+ self.format = self.tool_color + (" [%8s] " % tool) \
+ + self.pfx_color + "%s" \
+ + self.srcs_color + "%s" \
+ + self.arrow_color + " -> " \
+ + self.tgts_color + "%s" \
+ + termcap.Normal
+ self.max_sources = max_sources
+
+ def __call__(self, target, source, env, for_signature=None):
+ # truncate source list according to max_sources param
+ source = source[0:self.max_sources]
+ def strip(f):
+ return strip_build_path(str(f), env)
+ if len(source) > 0:
+ srcs = map(strip, source)
+ else:
+ srcs = ['']
+ tgts = map(strip, target)
+ # surprisingly, os.path.commonprefix is a dumb char-by-char string
+ # operation that has nothing to do with paths.
+ com_pfx = os.path.commonprefix(srcs + tgts)
+ com_pfx_len = len(com_pfx)
+ if com_pfx:
+ # do some cleanup and sanity checking on common prefix
+ if com_pfx[-1] == ".":
+ # prefix matches all but file extension: ok
+ # back up one to change 'foo.cc -> o' to 'foo.cc -> .o'
+ com_pfx = com_pfx[0:-1]
+ elif com_pfx[-1] == "/":
+ # common prefix is directory path: OK
+ pass
+ else:
+ src0_len = len(srcs[0])
+ tgt0_len = len(tgts[0])
+ if src0_len == com_pfx_len:
+ # source is a substring of target, OK
+ pass
+ elif tgt0_len == com_pfx_len:
+ # target is a substring of source, need to back up to
+ # avoid empty string on RHS of arrow
+ sep_idx = com_pfx.rfind(".")
+ if sep_idx != -1:
+ com_pfx = com_pfx[0:sep_idx]
+ else:
+ com_pfx = ''
+ elif src0_len > com_pfx_len and srcs[0][com_pfx_len] == ".":
+ # still splitting at file extension: ok
+ pass
+ else:
+ # probably a fluke; ignore it
+ com_pfx = ''
+ # recalculate length in case com_pfx was modified
+ com_pfx_len = len(com_pfx)
+ def fmt(files):
+ f = map(lambda s: s[com_pfx_len:], files)
+ return ', '.join(f)
+ return self.format % (com_pfx, fmt(srcs), fmt(tgts))
+
+Export('Transform')
+
+
+if main['VERBOSE']:
+ def MakeAction(action, string, *args, **kwargs):
+ return Action(action, *args, **kwargs)
+else:
+ MakeAction = Action
+ main['CCCOMSTR'] = Transform("CC")
+ main['CXXCOMSTR'] = Transform("CXX")
+ main['ASCOMSTR'] = Transform("AS")
+ main['SWIGCOMSTR'] = Transform("SWIG")
+ main['ARCOMSTR'] = Transform("AR", 0)
+ main['LINKCOMSTR'] = Transform("LINK", 0)
+ main['RANLIBCOMSTR'] = Transform("RANLIB", 0)
+ main['M4COMSTR'] = Transform("M4")
+ main['SHCCCOMSTR'] = Transform("SHCC")
+ main['SHCXXCOMSTR'] = Transform("SHCXX")
+Export('MakeAction')
+
+CXX_version = readCommand([main['CXX'],'--version'], exception=False)
+CXX_V = readCommand([main['CXX'],'-V'], exception=False)
+
+main['GCC'] = CXX_version and CXX_version.find('g++') >= 0
+main['SUNCC'] = CXX_V and CXX_V.find('Sun C++') >= 0
+main['ICC'] = CXX_V and CXX_V.find('Intel') >= 0
+if main['GCC'] + main['SUNCC'] + main['ICC'] > 1: