2 * This file is part of the coreboot project.
4 * Copyright (C) 2009 coresystems GmbH
6 * SPDX-License-Identifier: GPL-2.0
12 * GCC's libgcc handling is quite broken. While the libgcc functions
13 * are always regparm(0) the code that calls them uses whatever the
14 * compiler call specifies. Therefore we need a wrapper around those
15 * functions. See gcc bug PR41055 for more information.
17 #define WRAP_LIBGCC_CALL(type, name) \
18 type __normal_##name(type a, type b) __attribute__((regparm(0))); \
19 type __wrap_##name(type a, type b); \
20 type __attribute__((no_instrument_function)) \
21 __wrap_##name(type a, type b) \
22 { return __normal_##name(a, b); }
24 WRAP_LIBGCC_CALL(long long, __divdi3)
25 WRAP_LIBGCC_CALL(unsigned long long, __udivdi3)
26 WRAP_LIBGCC_CALL(long long, __moddi3)
27 WRAP_LIBGCC_CALL(unsigned long long, __umoddi3)