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d8819f94d5
Some changes are needed to x86 timer functions to support tracing. Add these so that the feature works correctly. Signed-off-by: Simon Glass <sjg@chromium.org>
41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 or later of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*/
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#ifdef __GNUC__
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/*
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* GCC's libgcc handling is quite broken. While the libgcc functions
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* are always regparm(0) the code that calls them uses whatever the
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* compiler call specifies. Therefore we need a wrapper around those
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* functions. See gcc bug PR41055 for more information.
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*/
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#define WRAP_LIBGCC_CALL(type, name) \
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type __normal_##name(type a, type b) __attribute__((regparm(0))); \
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type __wrap_##name(type a, type b); \
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type __attribute__((no_instrument_function)) \
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__wrap_##name(type a, type b) \
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{ return __normal_##name(a, b); }
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WRAP_LIBGCC_CALL(long long, __divdi3)
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WRAP_LIBGCC_CALL(unsigned long long, __udivdi3)
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WRAP_LIBGCC_CALL(long long, __moddi3)
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WRAP_LIBGCC_CALL(unsigned long long, __umoddi3)
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#endif
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