78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/*
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* Copyright (c) 2013-2014 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 Intel commonly used macro and defines for linker script
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*
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* Commonly used macros and defines for linker script.
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*/
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#ifndef _LINKERDEFSARCH_H
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#define _LINKERDEFSARCH_H
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#include <toolchain.h>
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#define INT_STUB_NOINIT KEEP(*(.intStubSect))
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#ifdef FINAL_LINK
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/* Use the real IDT */
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#define STATIC_IDT KEEP(*(staticIdt))
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/* Use the real _interrupt_vectors_allocated[] array */
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#define INTERRUPT_VECTORS_ALLOCATED KEEP(*(int_vector_alloc))
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/* Use the real _irq_to_interrupt_vector[] array */
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#define IRQ_TO_INTERRUPT_VECTOR KEEP(*(irq_int_vector_map))
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#else
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/*
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* Save space for the real IDT to prevent symbols from shifting. Note
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* that an IDT entry is 8 bytes in size.
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*/
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#define STATIC_IDT . += (8 * CONFIG_IDT_NUM_VECTORS);
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/*
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* Save space for the real _interrupt_vectors_allocated[] array to
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* prevent symbols from shifting.
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*/
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#define INTERRUPT_VECTORS_ALLOCATED . += ((CONFIG_IDT_NUM_VECTORS + 31) / 32);
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/*
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* Both IRQs and interrupt vectors may be in the range of 0..255 inclusive.
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*/
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#define IRQ_TO_INTERRUPT_VECTOR . += CONFIG_MAX_IRQ_LINES;
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#endif
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/*
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* The x86 manual recommends aligning the IDT on 8 byte boundary. This also
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* ensures that individual entries do not span a page boundary which the
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* interrupt management code relies on.
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*/
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#define IDT_MEMORY \
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. = ALIGN(8);\
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_idt_base_address = .;\
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STATIC_IDT
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#define INTERRUPT_VECTORS_ALLOCATED_MEMORY \
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. = ALIGN(4); \
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_interrupt_vectors_allocated = .; \
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INTERRUPT_VECTORS_ALLOCATED
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#define IRQ_TO_INTERRUPT_VECTOR_MEMORY \
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. = ALIGN(4); \
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_irq_to_interrupt_vector = .; \
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IRQ_TO_INTERRUPT_VECTOR
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#endif /* _LINKERDEFSARCH_H */
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