230 lines
6.4 KiB
Python
230 lines
6.4 KiB
Python
"""distutils.zosccompiler
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Contains the selection of the c & c++ compilers on z/OS. There are several
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different c compilers on z/OS, all of them are optional, so the correct
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one needs to be chosen based on the users input. This is compatible with
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the following compilers:
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IBM C/C++ For Open Enterprise Languages on z/OS 2.0
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IBM Open XL C/C++ 1.1 for z/OS
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IBM XL C/C++ V2.4.1 for z/OS 2.4 and 2.5
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IBM z/OS XL C/C++
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"""
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import os
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from . import sysconfig
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from .errors import CompileError, DistutilsExecError
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from .unixccompiler import UnixCCompiler
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_cc_args = {
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'ibm-openxl': [
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'-m64',
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'-fvisibility=default',
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'-fzos-le-char-mode=ascii',
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'-fno-short-enums',
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],
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'ibm-xlclang': [
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'-q64',
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'-qexportall',
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'-qascii',
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'-qstrict',
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'-qnocsect',
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'-Wa,asa,goff',
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'-Wa,xplink',
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'-qgonumber',
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'-qenum=int',
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'-Wc,DLL',
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],
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'ibm-xlc': [
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'-q64',
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'-qexportall',
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'-qascii',
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'-qstrict',
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'-qnocsect',
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'-Wa,asa,goff',
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'-Wa,xplink',
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'-qgonumber',
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'-qenum=int',
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'-Wc,DLL',
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'-qlanglvl=extc99',
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],
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}
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_cxx_args = {
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'ibm-openxl': [
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'-m64',
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'-fvisibility=default',
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'-fzos-le-char-mode=ascii',
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'-fno-short-enums',
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],
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'ibm-xlclang': [
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'-q64',
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'-qexportall',
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'-qascii',
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'-qstrict',
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'-qnocsect',
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'-Wa,asa,goff',
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'-Wa,xplink',
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'-qgonumber',
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'-qenum=int',
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'-Wc,DLL',
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],
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'ibm-xlc': [
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'-q64',
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'-qexportall',
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'-qascii',
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'-qstrict',
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'-qnocsect',
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'-Wa,asa,goff',
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'-Wa,xplink',
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'-qgonumber',
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'-qenum=int',
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'-Wc,DLL',
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'-qlanglvl=extended0x',
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],
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}
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_asm_args = {
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'ibm-openxl': ['-fasm', '-fno-integrated-as', '-Wa,--ASA', '-Wa,--GOFF'],
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'ibm-xlclang': [],
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'ibm-xlc': [],
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}
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_ld_args = {
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'ibm-openxl': [],
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'ibm-xlclang': ['-Wl,dll', '-q64'],
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'ibm-xlc': ['-Wl,dll', '-q64'],
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}
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# Python on z/OS is built with no compiler specific options in it's CFLAGS.
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# But each compiler requires it's own specific options to build successfully,
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# though some of the options are common between them
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class zOSCCompiler(UnixCCompiler):
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src_extensions = ['.c', '.C', '.cc', '.cxx', '.cpp', '.m', '.s']
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_cpp_extensions = ['.cc', '.cpp', '.cxx', '.C']
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_asm_extensions = ['.s']
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def _get_zos_compiler_name(self):
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zos_compiler_names = [
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os.path.basename(binary)
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for envvar in ('CC', 'CXX', 'LDSHARED')
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if (binary := os.environ.get(envvar, None))
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]
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if len(zos_compiler_names) == 0:
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return 'ibm-openxl'
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zos_compilers = {}
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for compiler in (
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'ibm-clang',
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'ibm-clang64',
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'ibm-clang++',
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'ibm-clang++64',
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'clang',
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'clang++',
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'clang-14',
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):
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zos_compilers[compiler] = 'ibm-openxl'
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for compiler in ('xlclang', 'xlclang++', 'njsc', 'njsc++'):
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zos_compilers[compiler] = 'ibm-xlclang'
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for compiler in ('xlc', 'xlC', 'xlc++'):
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zos_compilers[compiler] = 'ibm-xlc'
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return zos_compilers.get(zos_compiler_names[0], 'ibm-openxl')
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def __init__(self, verbose=0, dry_run=0, force=0):
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super().__init__(verbose, dry_run, force)
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self.zos_compiler = self._get_zos_compiler_name()
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sysconfig.customize_compiler(self)
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def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
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local_args = []
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if ext in self._cpp_extensions:
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compiler = self.compiler_cxx
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local_args.extend(_cxx_args[self.zos_compiler])
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elif ext in self._asm_extensions:
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compiler = self.compiler_so
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local_args.extend(_cc_args[self.zos_compiler])
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local_args.extend(_asm_args[self.zos_compiler])
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else:
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compiler = self.compiler_so
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local_args.extend(_cc_args[self.zos_compiler])
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local_args.extend(cc_args)
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try:
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self.spawn(compiler + local_args + [src, '-o', obj] + extra_postargs)
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except DistutilsExecError as msg:
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raise CompileError(msg)
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def runtime_library_dir_option(self, dir):
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return '-L' + dir
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def link(
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self,
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target_desc,
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objects,
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output_filename,
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output_dir=None,
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libraries=None,
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library_dirs=None,
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runtime_library_dirs=None,
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export_symbols=None,
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debug=0,
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extra_preargs=None,
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extra_postargs=None,
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build_temp=None,
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target_lang=None,
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):
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# For a built module to use functions from cpython, it needs to use Pythons
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# side deck file. The side deck is located beside the libpython3.xx.so
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ldversion = sysconfig.get_config_var('LDVERSION')
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if sysconfig.python_build:
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side_deck_path = os.path.join(
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sysconfig.get_config_var('abs_builddir'),
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f'libpython{ldversion}.x',
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)
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else:
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side_deck_path = os.path.join(
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sysconfig.get_config_var('installed_base'),
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sysconfig.get_config_var('platlibdir'),
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f'libpython{ldversion}.x',
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)
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if os.path.exists(side_deck_path):
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if extra_postargs:
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extra_postargs.append(side_deck_path)
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else:
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extra_postargs = [side_deck_path]
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# Check and replace libraries included side deck files
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if runtime_library_dirs:
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for dir in runtime_library_dirs:
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for library in libraries[:]:
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library_side_deck = os.path.join(dir, f'{library}.x')
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if os.path.exists(library_side_deck):
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libraries.remove(library)
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extra_postargs.append(library_side_deck)
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break
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# Any required ld args for the given compiler
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extra_postargs.extend(_ld_args[self.zos_compiler])
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super().link(
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target_desc,
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objects,
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output_filename,
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output_dir,
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libraries,
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library_dirs,
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runtime_library_dirs,
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export_symbols,
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debug,
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extra_preargs,
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extra_postargs,
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build_temp,
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target_lang,
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)
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