You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
1.9 KiB
57 lines
1.9 KiB
6 years ago
|
# encoding: utf-8
|
||
|
|
# force_32bit.py -- force compiler to create 32-bit code
|
||
|
|
# Copyright (C) 2018 a1batross
|
||
|
|
# This program 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 of the License, or
|
||
|
|
# (at your option) any later version.
|
||
|
|
#
|
||
|
|
# This program 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.
|
||
|
|
|
||
|
|
from fwgslib import get_flags_by_compiler
|
||
|
|
|
||
|
|
# Input:
|
||
|
|
# BIT32_MANDATORY(optional) -- fail if 32bit mode not available
|
||
|
|
# BIT32_ALLOW64(optional) -- ignore all checks, just set DEST_SIZEOF_VOID_P to 8
|
||
|
|
# Output:
|
||
|
|
# DEST_SIZEOF_VOID_P -- an integer, equals sizeof(void*) on target
|
||
|
|
|
||
|
|
def check_32bit(ctx, msg):
|
||
|
|
try:
|
||
|
|
ctx.check_cc(
|
||
|
|
fragment='''int main( void )
|
||
|
|
{
|
||
|
|
int check[sizeof(void*) == 4 ? 1: -1];
|
||
|
|
return 0;
|
||
|
|
}''',
|
||
|
|
msg = msg)
|
||
|
|
except ctx.errors.ConfigurationError:
|
||
|
|
return False
|
||
|
|
return True
|
||
|
|
|
||
|
|
def configure(conf):
|
||
|
|
if getattr(conf.env, 'BIT32_ALLOW64'):
|
||
|
|
conf.env.DEST_SIZEOF_VOID_P = 8
|
||
|
|
else:
|
||
|
|
if check_32bit(conf, 'Checking if \'{0}\' can target 32-bit'.format(conf.env.COMPILER_CC)):
|
||
|
|
conf.env.DEST_SIZEOF_VOID_P = 4
|
||
|
|
else:
|
||
|
|
flags = ['-m32']
|
||
|
|
# Think different.
|
||
|
|
if(conf.env.DEST_OS == 'darwin'):
|
||
|
|
flags = ['-arch', 'i386']
|
||
|
|
env_stash = conf.env
|
||
|
|
conf.env.append_value('LINKFLAGS', flags)
|
||
|
|
conf.env.append_value('CFLAGS', flags)
|
||
|
|
conf.env.append_value('CXXFLAGS', flags)
|
||
|
|
if check_32bit(conf, '...trying with additional flags'):
|
||
|
|
conf.env.DEST_SIZEOF_VOID_P = 4
|
||
|
|
else:
|
||
|
|
conf.env.DEST_SIZEOF_VOID_P = 8
|
||
|
|
conf.env = env_stash
|
||
|
|
if getattr(conf.env, 'BIT32_MANDATORY') and conf.env.DEST_SIZEOF_VOID_P == 8:
|
||
|
|
conf.fatal('Compiler can\'t create 32-bit code!')
|