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113 lines
3.9 KiB
113 lines
3.9 KiB
4 months ago
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/**
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* Copyright (c) 2019, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef AEEVALIST_H
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#define AEEVALIST_H
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#if !defined(__clang__) && (defined(__ARMCC_VERSION) || (defined(__GNUC__) && defined(__arm__)))
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#if (defined(__ARMCC_VERSION) && __ARMCC_VERSION >= 200000 && !defined(__APCS_ADSABI)) || \
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(defined(__GNUC__) && defined(__arm__) && defined(__ARM_EABI__))
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# define __AEEVA_ATPCS 0
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#else
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# define __AEEVA_ATPCS 1
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#endif
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typedef void* AEEVaList;
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#define __AEEVA_ARGALIGN(t) (((char*)(&((struct{char c;t x;}*)1)->x))-((char*)1))
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#define __AEEVA_ARGSIZE(t) ((sizeof(t)+sizeof(int)-1) & ~(sizeof(int)-1))
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static __inline void __cpy(char*d, const char*s, int len)
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{
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while (len-- > 0) *d++ = *s++;
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}
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static __inline AEEVaList __AEEVa_Arg(AEEVaList args, void* pv, int nVSize,
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int nArgSize, int nArgAlign)
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{
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int nArgs = (int)args & ~1;
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char* pcArgs = (char*)args;
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int bATPCS = (int)args & 1;
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int nArgsOffset = 0;
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int nVOffset = 0;
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if (!bATPCS) { /* caller was compiled with AAPCS */
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if (nArgAlign > (int)sizeof(int)) {
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nArgAlign--; /* make a mask */
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pcArgs += ((nArgs + nArgAlign) & (int)~(unsigned)nArgAlign) - nArgs;
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/* move pv to next alignment */
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}
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}
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#if defined(AEE_BIGENDIAN)
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if (nArgSize < (int)sizeof(int)) {
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nArgsOffset = (int)sizeof(int) - nArgSize;
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}
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nVOffset = nVSize - nArgSize;
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#else
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(void)nVSize;
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#endif /* AEE_BIGENDIAN */
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__cpy((char*)pv + nVOffset, (pcArgs - bATPCS) + nArgsOffset, nArgSize);
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/* round up */
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nArgSize = (nArgSize+(int)sizeof(int)-1) & ~((int)sizeof(int)-1);
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return pcArgs + nArgSize; /* increment va */
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}
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#define AEEVA_START(va,v) ((va) = (char*)&(v) + __AEEVA_ARGSIZE(v) + __AEEVA_ATPCS)
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#define AEEVA_ARG(va,v,t) ((void)((va) = __AEEVa_Arg(va,&v,sizeof(v),sizeof(t),__AEEVA_ARGALIGN(t))))
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#define AEEVA_END(va) ((va) = (AEEVaList)0)
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#define AEEVA_COPY(dest, src) ((void)((dest) = (src)))
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#else /* !defined(__clang__) && (defined(__ARMCC_VERSION) || (defined(__GNUC__) && defined(__arm__))) */
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#include <stdarg.h>
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typedef va_list AEEVaList;
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#define AEEVA_START(va,v) (va_start((va), (v)))
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#define AEEVA_ARG(va,v,t) ((v) = va_arg((va),t))
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#define AEEVA_END(va) (va_end((va)))
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#define AEEVA_COPY(dest, src) (va_copy((dest),(src)))
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#endif/* !defined(__clang__) && (defined(__ARMCC_VERSION) || (defined(__GNUC__) && defined(__arm__))) */
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#endif /* #ifndef AEEVALIST_H */
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