#!/usr/bin/env python # RISC-V multilib list generator. # Copyright (C) 2011-2020 Free Software Foundation, Inc. # Contributed by Andrew Waterman (andrew@sifive.com). # # This file is part of GCC. # # GCC is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3, or (at your option) # any later version. # # GCC is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with GCC; see the file COPYING3. If not see # . # Each argument to this script is of the form # --- # For example, # rv32imafd-ilp32d-rv32g-c,v # means that, in addition to rv32imafd, these configurations can also use the # rv32imafd-ilp32d libraries: rv32imafdc, rv32imafdv, rv32g, rv32gc, rv32gv from __future__ import print_function import sys import collections arches = collections.OrderedDict() abis = collections.OrderedDict() required = [] reuse = [] canonical_order = "mafdgqlcbjtpvn" def arch_canonicalize(arch): # TODO: Support Z, S, H, or X extensions. # TODO: Support implied extensions, e.g. D implied F in latest spec. # TODO: Support extension version. new_arch = "" if arch[:5] in ['rv32e', 'rv32i', 'rv32g', 'rv64i', 'rv64g']: new_arch = arch[:5] else: raise Exception("Unexpected arch: `%s`" % arch[:5]) # Find any Z, S, H or X long_ext_prefixes = ['z', 's', 'h', 'x'] long_ext_prefixes_idx = map(lambda x: arch.find(x), long_ext_prefixes) # Filter out any non-existent index. long_ext_prefixes_idx = list(filter(lambda x: x != -1, long_ext_prefixes_idx)) if long_ext_prefixes_idx: first_long_ext_idx = min(long_ext_prefixes_idx) long_exts = arch[first_long_ext_idx:] std_exts = arch[5:first_long_ext_idx] else: long_exts = "" std_exts = arch[5:] # Put extensions in canonical order. for ext in canonical_order: if ext in std_exts: new_arch += ext # Concat rest of the multi-char extensions. new_arch += long_exts return new_arch for cfg in sys.argv[1:]: (arch, abi, extra, ext) = cfg.split('-') arches[arch] = 1 abis[abi] = 1 extra = list(filter(None, extra.split(','))) ext = list(filter(None, ext.split(','))) alts = sum([[x] + [x + y for y in ext] for x in [arch] + extra], []) # TODO: We should expand g to imadzifencei once we support newer spec. alts = alts + [x.replace('imafd', 'g') for x in alts if 'imafd' in x] alts = list(map(arch_canonicalize, alts)) for alt in alts[1:]: arches[alt] = 1 reuse.append('march.%s/mabi.%s=march.%s/mabi.%s' % (arch, abi, alt, abi)) required.append('march=%s/mabi=%s' % (arch, abi)) arch_options = '/'.join(['march=%s' % x for x in arches.keys()]) arch_dirnames = ' \\\n'.join(arches.keys()) abi_options = '/'.join(['mabi=%s' % x for x in abis.keys()]) abi_dirnames = ' \\\n'.join(abis.keys()) prog = sys.argv[0].split('/')[-1] print('# This file was generated by %s with the command:' % prog) print('# %s' % ' '.join(sys.argv)) print('MULTILIB_OPTIONS = %s %s' % (arch_options, abi_options)) print('MULTILIB_DIRNAMES = %s %s' % (arch_dirnames, abi_dirnames)) print('MULTILIB_REQUIRED = %s' % ' \\\n'.join(required)) print('MULTILIB_REUSE = %s' % ' \\\n'.join(reuse))