linkloc.py
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上传日期:2018-11-18
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文件大小:4k
- """SCons.Tool.linkloc
- Tool specification for the LinkLoc linker for the Phar Lap ETS embedded
- operating system.
- There normally shouldn't be any need to import this module directly.
- It will usually be imported through the generic SCons.Tool.Tool()
- selection method.
- """
- #
- # Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
- #
- # Permission is hereby granted, free of charge, to any person obtaining
- # a copy of this software and associated documentation files (the
- # "Software"), to deal in the Software without restriction, including
- # without limitation the rights to use, copy, modify, merge, publish,
- # distribute, sublicense, and/or sell copies of the Software, and to
- # permit persons to whom the Software is furnished to do so, subject to
- # the following conditions:
- #
- # The above copyright notice and this permission notice shall be included
- # in all copies or substantial portions of the Software.
- #
- # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
- # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- #
- __revision__ = "src/engine/SCons/Tool/linkloc.py 3057 2008/06/09 22:21:00 knight"
- import os.path
- import re
- import SCons.Action
- import SCons.Defaults
- import SCons.Errors
- import SCons.Tool
- import SCons.Util
- from SCons.Tool.msvc import get_msvc_paths
- from SCons.Tool.PharLapCommon import addPharLapPaths
- _re_linker_command = re.compile(r'(s)@s*([^s]+)')
- def repl_linker_command(m):
- # Replaces any linker command file directives (e.g. "@foo.lnk") with
- # the actual contents of the file.
- try:
- f=open(m.group(2), "r")
- return m.group(1) + f.read()
- except IOError:
- # the linker should return an error if it can't
- # find the linker command file so we will remain quiet.
- # However, we will replace the @ with a # so we will not continue
- # to find it with recursive substitution
- return m.group(1) + '#' + m.group(2)
- class LinklocGenerator:
- def __init__(self, cmdline):
- self.cmdline = cmdline
- def __call__(self, env, target, source, for_signature):
- if for_signature:
- # Expand the contents of any linker command files recursively
- subs = 1
- strsub = env.subst(self.cmdline, target=target, source=source)
- while subs:
- strsub, subs = _re_linker_command.subn(repl_linker_command, strsub)
- return strsub
- else:
- return "${TEMPFILE('" + self.cmdline + "')}"
- def generate(env):
- """Add Builders and construction variables for ar to an Environment."""
- SCons.Tool.createSharedLibBuilder(env)
- SCons.Tool.createProgBuilder(env)
- env['SUBST_CMD_FILE'] = LinklocGenerator
- env['SHLINK'] = '$LINK'
- env['SHLINKFLAGS'] = SCons.Util.CLVar('$LINKFLAGS')
- env['SHLINKCOM'] = '${SUBST_CMD_FILE("$SHLINK $SHLINKFLAGS $( $_LIBDIRFLAGS $) $_LIBFLAGS -dll $TARGET $SOURCES")}'
- env['SHLIBEMITTER']= None
- env['LINK'] = "linkloc"
- env['LINKFLAGS'] = SCons.Util.CLVar('')
- env['LINKCOM'] = '${SUBST_CMD_FILE("$LINK $LINKFLAGS $( $_LIBDIRFLAGS $) $_LIBFLAGS -exe $TARGET $SOURCES")}'
- env['LIBDIRPREFIX']='-libpath '
- env['LIBDIRSUFFIX']=''
- env['LIBLINKPREFIX']='-lib '
- env['LIBLINKSUFFIX']='$LIBSUFFIX'
- msvs_version = env.get('MSVS_VERSION')
- include_path, lib_path, exe_path = get_msvc_paths(env, version = msvs_version)
- env['ENV']['LIB'] = lib_path
- env.PrependENVPath('PATH', exe_path)
- addPharLapPaths(env)
- def exists(env):
- return env.Detect('linkloc')