58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/*
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* Copyright (c) 2010-2014 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file
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* @brief Interrupt support for IA-32 arch
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*
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* INTERNAL
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* The _idt_base_address symbol is used to determine the base address of the IDT.
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* (It is generated by the linker script, and doesn't correspond to an actual
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* global variable.)
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*/
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#include <kernel.h>
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#include <arch/cpu.h>
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#include <kernel_structs.h>
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#include <misc/__assert.h>
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#include <misc/printk.h>
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#include <irq.h>
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extern void _SpuriousIntHandler(void *);
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extern void _SpuriousIntNoErrCodeHandler(void *);
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/*
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* These 'dummy' variables are used in nanoArchInit() to force the inclusion of
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* the spurious interrupt handlers. They *must* be declared in a module other
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* than the one they are used in to get around garbage collection issues and
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* warnings issued some compilers that they aren't used. Therefore care must
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* be taken if they are to be moved. See kernel_structs.h for more information.
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*/
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void *_dummy_spurious_interrupt;
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void *_dummy_exception_vector_stub;
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/*
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* Place the addresses of the spurious interrupt handlers into the intList
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* section. The genIdt tool can then populate any unused vectors with
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* these routines.
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*/
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void *__attribute__((section(".spurIsr"))) MK_ISR_NAME(_SpuriousIntHandler) =
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&_SpuriousIntHandler;
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void *__attribute__((section(".spurNoErrIsr")))
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MK_ISR_NAME(_SpuriousIntNoErrCodeHandler) =
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&_SpuriousIntNoErrCodeHandler;
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