1/* 2 * This file is part of the coreboot project. 3 * 4 * Copyright (C) 2009 coresystems GmbH 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; version 2 of the License. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA 18 */ 19 20/* GCC's libgcc handling is quite broken. While the libgcc functions 21 * are always regparm(0) the code that calls them uses whatever the 22 * compiler call specifies. Therefore we need a wrapper around those 23 * functions. See gcc bug PR41055 for more information. 24 */ 25#define WRAP_LIBGCC_CALL(type, name) \ 26 type __real_##name(type a, type b) __attribute__((regparm(0))); \ 27 type __wrap_##name(type a, type b); \ 28 type __wrap_##name(type a, type b) { return __real_##name(a, b); } 29 30WRAP_LIBGCC_CALL(long long, __divdi3) 31WRAP_LIBGCC_CALL(unsigned long long, __udivdi3) 32WRAP_LIBGCC_CALL(long long, __moddi3) 33WRAP_LIBGCC_CALL(unsigned long long, __umoddi3) 34 35