| Gabe Black | 36b2409 | 2011-11-16 23:01:37 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2009 coresystems GmbH |
| 5 | * |
| Tom Rini | 5b8031c | 2016-01-14 22:05:13 -0500 | [diff] [blame] | 6 | * SPDX-License-Identifier: GPL-2.0 |
| Gabe Black | 36b2409 | 2011-11-16 23:01:37 +0000 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #ifdef __GNUC__ |
| 10 | |
| 11 | /* |
| 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. |
| 16 | */ |
| 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); \ |
| Simon Glass | d8819f9 | 2013-06-11 11:14:52 -0700 | [diff] [blame] | 20 | type __attribute__((no_instrument_function)) \ |
| 21 | __wrap_##name(type a, type b) \ |
| 22 | { return __normal_##name(a, b); } |
| Gabe Black | 36b2409 | 2011-11-16 23:01:37 +0000 | [diff] [blame] | 23 | |
| 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) |
| 28 | |
| 29 | #endif |