128 lines
4.2 KiB
C
128 lines
4.2 KiB
C
/*
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* Convert SysV calling convention to EFI x86_64 calling convention
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*
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* Copyright (C) 2007-2010 Intel Corp
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* Bibo Mao <bibo.mao@intel.com>
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* Chandramouli Narayanan<mouli@linux.intel.com>
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* Huang Ying <ying.huang@intel.com>
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*
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* 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
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* are met:
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*
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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
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* provided with the distribution.
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* - Neither the name of Hewlett-Packard Co. 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 BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "efi.h"
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#include "efistdarg.h"
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#if !defined(HAVE_USE_MS_ABI)
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UINT64 efi_call0(void *func);
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UINT64 efi_call1(void *func, UINT64 arg1);
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UINT64 efi_call2(void *func, UINT64 arg1, UINT64 arg2);
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UINT64 efi_call3(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3);
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UINT64 efi_call4(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
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UINT64 arg4);
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UINT64 efi_call5(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
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UINT64 arg4, UINT64 arg5);
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UINT64 efi_call6(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
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UINT64 arg4, UINT64 arg5, UINT64 arg6);
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UINT64 efi_call7(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
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UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7);
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UINT64 efi_call8(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
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UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
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UINT64 arg8);
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UINT64 efi_call9(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
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UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
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UINT64 arg8, UINT64 arg9);
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UINT64 efi_call10(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
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UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
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UINT64 arg8, UINT64 arg9, UINT64 arg10);
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#define EFI_ARG_NUM_MAX 10
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EFI_STATUS uefi_call_wrapper(void *fp, unsigned long va_num, ...)
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{
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va_list ap;
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int i;
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unsigned long args[EFI_ARG_NUM_MAX];
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if (va_num > EFI_ARG_NUM_MAX || va_num < 0) {
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return EFI_LOAD_ERROR;
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}
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va_start(ap, va_num);
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for (i = 0; i < va_num; i++) {
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args[i] = va_arg(ap, UINT64);
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}
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va_end(ap);
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/* As the number of args grows extend it appropriately */
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switch (va_num) {
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case 0:
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return efi_call0(fp);
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case 1:
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return efi_call1(fp, args[0]);
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case 2:
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return efi_call2(fp,
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args[0], args[1]);
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case 3:
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return efi_call3(fp,
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args[0], args[1], args[2]);
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case 4:
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return efi_call4(fp,
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args[0], args[1], args[2], args[3]);
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case 5:
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return efi_call5(fp,
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args[0], args[1], args[2], args[3],
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args[4]);
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case 6:
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return efi_call6(fp,
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args[0], args[1], args[2], args[3],
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args[4], args[5]);
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case 7:
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return efi_call7(fp,
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args[0], args[1], args[2], args[3],
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args[4], args[5], args[6]);
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case 8:
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return efi_call8(fp,
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args[0], args[1], args[2], args[3],
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args[4], args[5], args[6], args[7]);
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case 9:
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return efi_call9(fp,
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args[0], args[1], args[2], args[3],
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args[4], args[5], args[6], args[7],
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args[8]);
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case 10:
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return efi_call10(fp,
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args[0], args[1], args[2], args[3],
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args[4], args[5], args[6], args[7],
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args[8], args[9]);
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default:
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return EFI_LOAD_ERROR;
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}
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}
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#endif
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