2a4f01b87f
These nodes are really for working with text, and they do strange and broken things otherwise. This change adds a pair of convenience functions which uses pickle to serialize an object for the Value to hold, and to unpack the Value later. Change-Id: Id48822ce3de283b003d4cc7ef6b563a70e321ca6 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/48371 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Hoa Nguyen <hoanguyen@ucdavis.edu> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
273 lines
10 KiB
Python
273 lines
10 KiB
Python
# Copyright (c) 2013, 2015-2017 ARM Limited
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# All rights reserved.
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Copyright (c) 2011 Advanced Micro Devices, Inc.
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# Copyright (c) 2009 The Hewlett-Packard Development Company
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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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import os
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import pickle
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import sys
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import tempfile
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import textwrap
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from gem5_scons.util import get_termcap
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from gem5_scons.configure import Configure
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from gem5_scons.defaults import EnvDefaults
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import SCons.Node.Python
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import SCons.Script
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termcap = get_termcap()
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def strip_build_path(path, env):
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path = str(path)
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build_base = 'build/'
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variant_base = env['BUILDROOT'] + os.path.sep
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if path.startswith(variant_base):
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path = path[len(variant_base):]
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elif path.startswith(build_base):
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path = path[len(build_base):]
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return path
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def TempFileSpawn(scons_env):
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old_pspawn = scons_env['PSPAWN']
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old_spawn = scons_env['SPAWN']
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def wrapper(old, sh, esc, cmd, sh_args, *py_args):
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with tempfile.NamedTemporaryFile() as temp:
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temp.write(' '.join(sh_args).encode())
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temp.flush()
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sh_args = [sh, esc(temp.name)]
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return old(sh, esc, sh, sh_args, *py_args)
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def new_pspawn(sh, esc, cmd, args, sh_env, stdout, stderr):
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return wrapper(old_pspawn, sh, esc, cmd, args, sh_env, stdout, stderr)
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def new_spawn(sh, esc, cmd, args, sh_env):
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return wrapper(old_spawn, sh, esc, cmd, args, sh_env)
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scons_env['PSPAWN'] = new_pspawn
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scons_env['SPAWN'] = new_spawn
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# Generate a string of the form:
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# common/path/prefix/src1, src2 -> tgt1, tgt2
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# to print while building.
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class Transform(object):
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# all specific color settings should be here and nowhere else
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tool_color = termcap.Normal
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pfx_color = termcap.Yellow
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srcs_color = termcap.Yellow + termcap.Bold
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arrow_color = termcap.Blue + termcap.Bold
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tgts_color = termcap.Yellow + termcap.Bold
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def __init__(self, tool, max_sources=99):
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self.format = self.tool_color + (" [%8s] " % tool) \
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+ self.pfx_color + "%s" \
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+ self.srcs_color + "%s" \
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+ self.arrow_color + " -> " \
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+ self.tgts_color + "%s" \
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+ termcap.Normal
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self.max_sources = max_sources
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def __call__(self, target, source, env, for_signature=None):
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# truncate source list according to max_sources param
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source = source[0:self.max_sources]
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def strip(f):
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return strip_build_path(str(f), env)
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if len(source) > 0:
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srcs = list(map(strip, source))
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else:
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srcs = ['']
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tgts = list(map(strip, target))
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# surprisingly, os.path.commonprefix is a dumb char-by-char string
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# operation that has nothing to do with paths.
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com_pfx = os.path.commonprefix(srcs + tgts)
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com_pfx_len = len(com_pfx)
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if com_pfx:
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# do some cleanup and sanity checking on common prefix
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if com_pfx[-1] == ".":
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# prefix matches all but file extension: ok
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# back up one to change 'foo.cc -> o' to 'foo.cc -> .o'
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com_pfx = com_pfx[0:-1]
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elif com_pfx[-1] == "/":
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# common prefix is directory path: OK
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pass
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else:
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src0_len = len(srcs[0])
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tgt0_len = len(tgts[0])
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if src0_len == com_pfx_len:
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# source is a substring of target, OK
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pass
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elif tgt0_len == com_pfx_len:
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# target is a substring of source, need to back up to
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# avoid empty string on RHS of arrow
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sep_idx = com_pfx.rfind(".")
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if sep_idx != -1:
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com_pfx = com_pfx[0:sep_idx]
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else:
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com_pfx = ''
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elif src0_len > com_pfx_len and srcs[0][com_pfx_len] == ".":
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# still splitting at file extension: ok
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pass
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else:
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# probably a fluke; ignore it
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com_pfx = ''
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# recalculate length in case com_pfx was modified
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com_pfx_len = len(com_pfx)
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def fmt(files):
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f = list(map(lambda s: s[com_pfx_len:], files))
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return ', '.join(f)
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return self.format % (com_pfx, fmt(srcs), fmt(tgts))
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# The width warning and error messages should be wrapped at.
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text_width = None
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# If stdout is not attached to a terminal, default to 80 columns.
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if not sys.stdout.isatty():
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text_width = 80
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# This should work in python 3.3 and above.
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if text_width is None:
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try:
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import shutil
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text_width = shutil.get_terminal_size().columns
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except:
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pass
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# This should work if the curses python module is installed.
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if text_width is None:
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try:
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import curses
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try:
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_, text_width = curses.initscr().getmaxyx()
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finally:
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curses.endwin()
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except:
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pass
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# If all else fails, default to 80 columns.
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if text_width is None:
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text_width = 80
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def print_message(prefix, color, message, **kwargs):
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prefix_len = len(prefix)
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if text_width > prefix_len:
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wrap_width = text_width - prefix_len
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padding = ' ' * prefix_len
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# First split on newlines.
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lines = message.split('\n')
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# Then wrap each line to the required width.
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wrapped_lines = []
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for line in lines:
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wrapped_lines.extend(textwrap.wrap(line, wrap_width))
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# Finally add the prefix and padding on extra lines, and glue it all
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# back together.
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message = prefix + ('\n' + padding).join(wrapped_lines)
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else:
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# We have very small terminal, indent formatting doesn't help.
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message = prefix + message
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# Add in terminal escape sequences.
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message = color + termcap.Bold + message + termcap.Normal
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# Actually print the message.
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print(message, **kwargs)
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return message
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all_warnings = []
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def summarize_warnings():
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if not all_warnings:
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return
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print(termcap.Yellow + termcap.Bold +
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'*** Summary of Warnings ***' +
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termcap.Normal)
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list(map(print, all_warnings))
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def warning(*args, **kwargs):
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message = ' '.join(args)
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printed = print_message('Warning: ', termcap.Yellow, message, **kwargs)
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all_warnings.append(printed)
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def error(*args, **kwargs):
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message = ' '.join(args)
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print_message('Error: ', termcap.Red, message, **kwargs)
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SCons.Script.Exit(1)
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def parse_build_path(target):
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path_dirs = target.split('/')
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# Pop off the target file.
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path_dirs.pop()
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# Search backwards for the "build" directory. Whatever was just before it
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# was the name of the variant.
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variant_dir = path_dirs.pop()
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while path_dirs and path_dirs[-1] != 'build':
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variant_dir = path_dirs.pop()
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if not path_dirs:
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error("No non-leaf 'build' dir found on target path.", t)
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return os.path.join('/', *path_dirs), variant_dir
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# The MakeAction wrapper, and a SCons tool to set up the *COMSTR variables.
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if SCons.Script.GetOption('verbose'):
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def MakeAction(action, string, *args, **kwargs):
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return SCons.Script.Action(action, *args, **kwargs)
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def MakeActionTool(env):
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pass
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else:
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MakeAction = SCons.Script.Action
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def MakeActionTool(env):
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env['CCCOMSTR'] = Transform("CC")
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env['CXXCOMSTR'] = Transform("CXX")
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env['ASCOMSTR'] = Transform("AS")
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env['ARCOMSTR'] = Transform("AR", 0)
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env['LINKCOMSTR'] = Transform("LINK", 0)
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env['SHLINKCOMSTR'] = Transform("SHLINK", 0)
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env['RANLIBCOMSTR'] = Transform("RANLIB", 0)
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env['M4COMSTR'] = Transform("M4")
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env['SHCCCOMSTR'] = Transform("SHCC")
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env['SHCXXCOMSTR'] = Transform("SHCXX")
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def ToValue(obj):
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return SCons.Node.Python.Value(pickle.dumps(obj))
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def FromValue(node):
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return pickle.loads(node.read())
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__all__ = ['Configure', 'EnvDefaults', 'Transform', 'warning', 'error',
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'MakeAction', 'MakeActionTool', 'ToValue', 'FromValue']
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