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Add support for z/OS compilers; Fixes pypa#215
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,228 @@ | ||
| """distutils.zosccompiler | ||
| Contains the selection of the c & c++ compilers on z/OS. There are several | ||
| different c compilers on z/OS, all of them are optional, so the correct | ||
| one needs to be chosen based on the users input. This is compatible with | ||
| the following compilers: | ||
| IBM C/C++ For Open Enterprise Languages on z/OS 2.0 | ||
| IBM Open XL C/C++ 1.1 for z/OS | ||
| IBM XL C/C++ V2.4.1 for z/OS 2.4 and 2.5 | ||
| IBM z/OS XL C/C++ | ||
| """ | ||
|
|
||
| import os | ||
| from .unixccompiler import UnixCCompiler | ||
| from . import sysconfig | ||
| from .errors import DistutilsExecError, CompileError | ||
|
|
||
| _cc_args = { | ||
| 'ibm-openxl': [ | ||
| '-m64', | ||
| '-fvisibility=default', | ||
| '-fzos-le-char-mode=ascii', | ||
| '-fno-short-enums', | ||
| ], | ||
| 'ibm-xlclang': [ | ||
| '-q64', | ||
| '-qexportall', | ||
| '-qascii', | ||
| '-qstrict', | ||
| '-qnocsect', | ||
| '-Wa,asa,goff', | ||
| '-Wa,xplink', | ||
| '-qgonumber', | ||
| '-qenum=int', | ||
| '-Wc,DLL', | ||
| ], | ||
| 'ibm-xlc': [ | ||
| '-q64', | ||
| '-qexportall', | ||
| '-qascii', | ||
| '-qstrict', | ||
| '-qnocsect', | ||
| '-Wa,asa,goff', | ||
| '-Wa,xplink', | ||
| '-qgonumber', | ||
| '-qenum=int', | ||
| '-Wc,DLL', | ||
| '-qlanglvl=extc99', | ||
| ], | ||
| } | ||
|
|
||
| _cxx_args = { | ||
| 'ibm-openxl': [ | ||
| '-m64', | ||
| '-fvisibility=default', | ||
| '-fzos-le-char-mode=ascii', | ||
| '-fno-short-enums', | ||
| ], | ||
| 'ibm-xlclang': [ | ||
| '-q64', | ||
| '-qexportall', | ||
| '-qascii', | ||
| '-qstrict', | ||
| '-qnocsect', | ||
| '-Wa,asa,goff', | ||
| '-Wa,xplink', | ||
| '-qgonumber', | ||
| '-qenum=int', | ||
| '-Wc,DLL', | ||
| ], | ||
| 'ibm-xlc': [ | ||
| '-q64', | ||
| '-qexportall', | ||
| '-qascii', | ||
| '-qstrict', | ||
| '-qnocsect', | ||
| '-Wa,asa,goff', | ||
| '-Wa,xplink', | ||
| '-qgonumber', | ||
| '-qenum=int', | ||
| '-Wc,DLL', | ||
| '-qlanglvl=extended0x', | ||
| ], | ||
| } | ||
|
|
||
| _asm_args = { | ||
| 'ibm-openxl': ['-fasm', '-fno-integrated-as', '-Wa,--ASA', '-Wa,--GOFF'], | ||
| 'ibm-xlclang': [], | ||
| 'ibm-xlc': [], | ||
| } | ||
|
|
||
| _ld_args = { | ||
| 'ibm-openxl': [], | ||
| 'ibm-xlclang': ['-Wl,dll', '-q64'], | ||
| 'ibm-xlc': ['-Wl,dll', '-q64'], | ||
| } | ||
|
|
||
|
|
||
| # Python on z/OS is built with no compiler specific options in it's CFLAGS. | ||
| # But each compiler requires it's own specific options to build successfully, | ||
| # though some of the options are common between them | ||
| class zOSCCompiler(UnixCCompiler): | ||
| src_extensions = ['.c', '.C', '.cc', '.cxx', '.cpp', '.m', '.s'] | ||
| _cpp_extensions = ['.cc', '.cpp', '.cxx', '.C'] | ||
| _asm_extensions = ['.s'] | ||
|
|
||
| def _get_zos_compiler_name(self): | ||
| zos_compiler_names = [ | ||
| os.path.basename(binary) | ||
| for envvar in ('CC', 'CXX', 'LDSHARED') | ||
| if (binary := os.environ.get(envvar, None)) | ||
| ] | ||
| if len(zos_compiler_names) == 0: | ||
| return 'ibm-openxl' | ||
|
|
||
| zos_compilers = {} | ||
| for compiler in ( | ||
| 'ibm-clang', | ||
| 'ibm-clang64', | ||
| 'ibm-clang++', | ||
| 'ibm-clang++64', | ||
| 'clang', | ||
| 'clang++', | ||
| 'clang-14', | ||
| ): | ||
| zos_compilers[compiler] = 'ibm-openxl' | ||
|
|
||
| for compiler in ('xlclang', 'xlclang++', 'njsc', 'njsc++'): | ||
| zos_compilers[compiler] = 'ibm-xlclang' | ||
|
|
||
| for compiler in ('xlc', 'xlC', 'xlc++'): | ||
| zos_compilers[compiler] = 'ibm-xlc' | ||
|
|
||
| return zos_compilers.get(zos_compiler_names[0], 'ibm-openxl') | ||
|
|
||
| def __init__(self, verbose=0, dry_run=0, force=0): | ||
| super().__init__(verbose, dry_run, force) | ||
| self.zos_compiler = self._get_zos_compiler_name() | ||
| sysconfig.customize_compiler(self) | ||
|
|
||
| def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts): | ||
| local_args = [] | ||
| if ext in self._cpp_extensions: | ||
| compiler = self.compiler_cxx | ||
| local_args.extend(_cxx_args[self.zos_compiler]) | ||
| elif ext in self._asm_extensions: | ||
| compiler = self.compiler_so | ||
| local_args.extend(_cc_args[self.zos_compiler]) | ||
| local_args.extend(_asm_args[self.zos_compiler]) | ||
| else: | ||
| compiler = self.compiler_so | ||
| local_args.extend(_cc_args[self.zos_compiler]) | ||
| local_args.extend(cc_args) | ||
|
|
||
| try: | ||
| self.spawn(compiler + local_args + [src, '-o', obj] + extra_postargs) | ||
| except DistutilsExecError as msg: | ||
| raise CompileError(msg) | ||
|
|
||
| def runtime_library_dir_option(self, dir): | ||
| return '-L' + dir | ||
|
|
||
| def link( | ||
| self, | ||
| target_desc, | ||
| objects, | ||
| output_filename, | ||
| output_dir=None, | ||
| libraries=None, | ||
| library_dirs=None, | ||
| runtime_library_dirs=None, | ||
| export_symbols=None, | ||
| debug=0, | ||
| extra_preargs=None, | ||
| extra_postargs=None, | ||
| build_temp=None, | ||
| target_lang=None, | ||
| ): | ||
| # For a built module to use functions from cpython, it needs to use Pythons | ||
| # side deck file. The side deck is located beside the libpython3.xx.so | ||
| ldversion = sysconfig.get_config_var('LDVERSION') | ||
| if sysconfig.python_build: | ||
| side_deck_path = os.path.join( | ||
| sysconfig.get_config_var('abs_builddir'), | ||
| f'libpython{ldversion}.x', | ||
| ) | ||
| else: | ||
| side_deck_path = os.path.join( | ||
| sysconfig.get_config_var('installed_base'), | ||
| sysconfig.get_config_var('platlibdir'), | ||
| f'libpython{ldversion}.x', | ||
| ) | ||
|
|
||
| if os.path.exists(side_deck_path): | ||
| if extra_postargs: | ||
| extra_postargs.append(side_deck_path) | ||
| else: | ||
| extra_postargs = [side_deck_path] | ||
|
|
||
| # Check and replace libraries included side deck files | ||
| if runtime_library_dirs: | ||
| for dir in runtime_library_dirs: | ||
| for library in libraries[:]: | ||
| library_side_deck = os.path.join(dir, f'{library}.x') | ||
| if os.path.exists(library_side_deck): | ||
| libraries.remove(library) | ||
| extra_postargs.append(library_side_deck) | ||
| break | ||
|
|
||
| # Any required ld args for the given compiler | ||
| extra_postargs.extend(_ld_args[self.zos_compiler]) | ||
|
|
||
| super().link( | ||
| target_desc, | ||
| objects, | ||
| output_filename, | ||
| output_dir, | ||
| libraries, | ||
| library_dirs, | ||
| runtime_library_dirs, | ||
| export_symbols, | ||
| debug, | ||
| extra_preargs, | ||
| extra_postargs, | ||
| build_temp, | ||
| target_lang, | ||
| ) |