189 lines
7 KiB
Python
189 lines
7 KiB
Python
"""SCons.Tool.applelink
|
|
|
|
Tool-specific initialization for Apple's gnu-like linker.
|
|
|
|
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.
|
|
|
|
"""
|
|
|
|
#
|
|
# MIT License
|
|
#
|
|
# Copyright 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.
|
|
#
|
|
|
|
# Even though the Mac is based on the GNU toolchain, it doesn't understand
|
|
# the -rpath option, so we use the "link" tool instead of "gnulink".
|
|
from SCons.Util import CLVar
|
|
|
|
from . import link
|
|
|
|
# User programmatically describes how SHLIBVERSION maps to values for compat/current.
|
|
_APPLELIB_MAX_VERSION_VALUES = (65535, 255, 255)
|
|
|
|
|
|
class AppleLinkInvalidCurrentVersionException(Exception):
|
|
pass
|
|
|
|
|
|
class AppleLinkInvalidCompatibilityVersionException(Exception):
|
|
pass
|
|
|
|
|
|
def _applelib_check_valid_version(version_string):
|
|
"""
|
|
Check that the version # is valid.
|
|
X[.Y[.Z]]
|
|
where X 0-65535
|
|
where Y either not specified or 0-255
|
|
where Z either not specified or 0-255
|
|
:param version_string:
|
|
:return:
|
|
"""
|
|
parts = version_string.split('.')
|
|
if len(parts) > 3:
|
|
return False, "Version string has too many periods [%s]" % version_string
|
|
if len(parts) <= 0:
|
|
return False, "Version string unspecified [%s]" % version_string
|
|
|
|
for (i, p) in enumerate(parts):
|
|
try:
|
|
p_i = int(p)
|
|
except ValueError:
|
|
return False, "Version component %s (from %s) is not a number" % (p, version_string)
|
|
if p_i < 0 or p_i > _APPLELIB_MAX_VERSION_VALUES[i]:
|
|
return False, "Version component %s (from %s) is not valid value should be between 0 and %d" % (
|
|
p, version_string, _APPLELIB_MAX_VERSION_VALUES[i])
|
|
|
|
return True, ""
|
|
|
|
|
|
def _applelib_currentVersionFromSoVersion(source, target, env, for_signature):
|
|
"""
|
|
A generator function to create the -Wl,-current_version flag if needed.
|
|
If env['APPLELINK_NO_CURRENT_VERSION'] contains a true value no flag will be generated
|
|
Otherwise if APPLELINK_CURRENT_VERSION is not specified, env['SHLIBVERSION']
|
|
will be used.
|
|
|
|
:param source:
|
|
:param target:
|
|
:param env:
|
|
:param for_signature:
|
|
:return: A string providing the flag to specify the current_version of the shared library
|
|
"""
|
|
if env.get('APPLELINK_NO_CURRENT_VERSION', False):
|
|
return ""
|
|
elif env.get('APPLELINK_CURRENT_VERSION', False):
|
|
version_string = env['APPLELINK_CURRENT_VERSION']
|
|
elif env.get('SHLIBVERSION', False):
|
|
version_string = env['SHLIBVERSION']
|
|
else:
|
|
return ""
|
|
|
|
version_string = ".".join(version_string.split('.')[:3])
|
|
|
|
valid, reason = _applelib_check_valid_version(version_string)
|
|
if not valid:
|
|
raise AppleLinkInvalidCurrentVersionException(reason)
|
|
|
|
return "-Wl,-current_version,%s" % version_string
|
|
|
|
|
|
def _applelib_compatVersionFromSoVersion(source, target, env, for_signature):
|
|
"""
|
|
A generator function to create the -Wl,-compatibility_version flag if needed.
|
|
If env['APPLELINK_NO_COMPATIBILITY_VERSION'] contains a true value no flag will be generated
|
|
Otherwise if APPLELINK_COMPATIBILITY_VERSION is not specified
|
|
the first two parts of env['SHLIBVERSION'] will be used with a .0 appended.
|
|
|
|
:param source:
|
|
:param target:
|
|
:param env:
|
|
:param for_signature:
|
|
:return: A string providing the flag to specify the compatibility_version of the shared library
|
|
"""
|
|
if env.get('APPLELINK_NO_COMPATIBILITY_VERSION', False):
|
|
return ""
|
|
elif env.get('APPLELINK_COMPATIBILITY_VERSION', False):
|
|
version_string = env['APPLELINK_COMPATIBILITY_VERSION']
|
|
elif env.get('SHLIBVERSION', False):
|
|
version_string = ".".join(env['SHLIBVERSION'].split('.')[:2] + ['0'])
|
|
else:
|
|
return ""
|
|
|
|
if version_string is None:
|
|
return ""
|
|
|
|
valid, reason = _applelib_check_valid_version(version_string)
|
|
if not valid:
|
|
raise AppleLinkInvalidCompatibilityVersionException(reason)
|
|
|
|
return "-Wl,-compatibility_version,%s" % version_string
|
|
|
|
|
|
def generate(env):
|
|
"""Add Builders and construction variables for applelink to an
|
|
Environment."""
|
|
link.generate(env)
|
|
|
|
env['FRAMEWORKPATHPREFIX'] = '-F'
|
|
env['_FRAMEWORKPATH'] = '${_concat(FRAMEWORKPATHPREFIX, FRAMEWORKPATH, "", __env__, RDirs)}'
|
|
|
|
env['_FRAMEWORKS'] = '${_concat("-framework ", FRAMEWORKS, "", __env__)}'
|
|
env['LINKCOM'] = env['LINKCOM'] + ' $_FRAMEWORKPATH $_FRAMEWORKS $FRAMEWORKSFLAGS'
|
|
env['SHLINKFLAGS'] = CLVar('$LINKFLAGS -dynamiclib')
|
|
env['SHLINKCOM'] = env['SHLINKCOM'] + ' $_FRAMEWORKPATH $_FRAMEWORKS $FRAMEWORKSFLAGS'
|
|
|
|
env['_APPLELINK_CURRENT_VERSION'] = _applelib_currentVersionFromSoVersion
|
|
env['_APPLELINK_COMPATIBILITY_VERSION'] = _applelib_compatVersionFromSoVersion
|
|
env['_SHLIBVERSIONFLAGS'] = '$_APPLELINK_CURRENT_VERSION $_APPLELINK_COMPATIBILITY_VERSION '
|
|
env['_LDMODULEVERSIONFLAGS'] = '$_APPLELINK_CURRENT_VERSION $_APPLELINK_COMPATIBILITY_VERSION '
|
|
|
|
# override the default for loadable modules, which are different
|
|
# on OS X than dynamic shared libs. echoing what XCode does for
|
|
# pre/suffixes:
|
|
env['LDMODULEPREFIX'] = ''
|
|
env['LDMODULESUFFIX'] = ''
|
|
env['LDMODULEFLAGS'] = CLVar('$LINKFLAGS -bundle')
|
|
env['LDMODULECOM'] = '$LDMODULE -o ${TARGET} $LDMODULEFLAGS' \
|
|
' $SOURCES $_LIBDIRFLAGS $_LIBFLAGS $_FRAMEWORKPATH $_FRAMEWORKS $FRAMEWORKSFLAGS'
|
|
|
|
# New stuff
|
|
#
|
|
env['_SHLIBSUFFIX'] = '${_SHLIBVERSION}${SHLIBSUFFIX}'
|
|
|
|
env['__SHLIBVERSIONFLAGS'] = '${__lib_either_version_flag(__env__,' \
|
|
'"SHLIBVERSION","_APPLELINK_CURRENT_VERSION", "_SHLIBVERSIONFLAGS")}'
|
|
env['__LDMODULEVERSIONFLAGS'] = '${__lib_either_version_flag(__env__,' \
|
|
'"LDMODULEVERSION","_APPLELINK_CURRENT_VERSION", "_LDMODULEVERSIONFLAGS")}'
|
|
|
|
|
|
def exists(env):
|
|
return env['PLATFORM'] == 'darwin'
|
|
|
|
# Local Variables:
|
|
# tab-width:4
|
|
# indent-tabs-mode:nil
|
|
# End:
|
|
# vim: set expandtab tabstop=4 shiftwidth=4:
|