104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/* asmPrv.h - Private x86 assembler header */
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/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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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 met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* 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 BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __INCsysX86AsmPrvh
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#define __INCsysX86AsmPrvh
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#include <arch/x86/asm.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Macro to generate name of stub from name of handler */
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#define MK_STUB_NAME(h) h##Stub
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/*
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* Assmembler version of the NANO_CPU_INT_REGISTER macro.
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* See arch.h for details
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*/
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#define NANO_CPU_INT_REGISTER_ASM(handler, vector, dpl) \
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.section ".intList"; \
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MK_ISR_NAME(handler) : .long MK_STUB_NAME(handler); \
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.long vector; \
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.long dpl;
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#define NANO_CPU_EXC_CONNECT_CODE(h) \
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call _ExcEnt; \
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call h; \
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jmp _ExcExit;
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#define NANO_CPU_EXC_CONNECT_NO_ERR_CODE(h) \
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pushl $0; \
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call _ExcEnt; \
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call h; \
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jmp _ExcExit;
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/**
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*
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* @brief To generate and register an exception stub
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*
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* Generates an exception stub for the handler, <h>. It is registered
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* on the vector given by <v> with the privilege level <d>; <d> should always
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* be 0.
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*
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* Use this version of the macro if the processor pushes an error code for the
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* given exception.
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*/
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#define NANO_CPU_EXC_CONNECT(h, v, d) \
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NANO_CPU_INT_REGISTER_ASM(h, v, d) GTEXT(MK_STUB_NAME(h)); \
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SECTION_FUNC(TEXT, MK_STUB_NAME(h)) NANO_CPU_EXC_CONNECT_CODE(h)
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/**
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*
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* @brief To generate and register an exception stub
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*
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* Generates an exception stub for the handler, <h>. It is registered
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* on the vector given by <v> with the privilege level <d>; <d> should always
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* be 0.
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*
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* Use this version of the macro if the processor doesn't push an error code for
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* the given exception. The created stub pushes a dummy value of 0 to keep the
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* exception stack frame the same.
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*/
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#define NANO_CPU_EXC_CONNECT_NO_ERR(h, v, d) \
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NANO_CPU_INT_REGISTER_ASM(h, v, d) GTEXT(MK_STUB_NAME(h)); \
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SECTION_FUNC(TEXT, MK_STUB_NAME(h)) \
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NANO_CPU_EXC_CONNECT_NO_ERR_CODE(h)
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCsysX86AsmPrvh */
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