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* Copyright (c) 2017 Intel Corporation.
* SPDX-License-Identifier: Apache-2.0
#include <zephyr/toolchain.h>
#include <zephyr/linker/sections.h>
#include <zephyr/sw_isr_table.h>
#include <zephyr/arch/cpu.h>
/* There is an additional member at the end populated by the linker script
* which indicates the number of interrupts specified
struct int_list_header {
uint32_t table_size;
uint32_t offset;
/* These values are not included in the resulting binary, but instead form the
* header of the initList section, which is used by to create
* the vector and sw isr tables,
Z_GENERIC_SECTION(.irq_info) struct int_list_header _iheader = {
.table_size = IRQ_TABLE_SIZE,
/* These are placeholder tables. They will be replaced by the real tables
* generated by
* z_irq_spurious is used as a placeholder value to ensure that it is not
* optimized out in the first linker pass. The first linker pass must contain
* the same symbols as the second linker pass for the code generation to work.
/* Some arches don't use a vector table, they have a common exception entry
* point for all interrupts. Don't generate a table in this case.
/* When both the IRQ vector table and the software ISR table are used, populate
* the IRQ vector table with the common software ISR by default, such that all
* indirect interrupt vectors are handled using the software ISR table;
* otherwise, populate the IRQ vector table with z_irq_spurious so that all
* un-connected IRQ vectors end up in the spurious IRQ handler.
#define IRQ_VECTOR_TABLE_DEFAULT_ISR _isr_wrapper
#define IRQ_VECTOR_TABLE_DEFAULT_ISR z_irq_spurious
/* Assembly code for a jump instruction. Must be set by the architecture. */
#error "ARCH_IRQ_VECTOR_JUMP_CODE not defined"
/* The IRQ vector table contains the jump opcodes towards the vector routine */
void __irq_vector_table __attribute__((naked)) _irq_vector_table(void) {
/* The IRQ vector table is an array of vector addresses */
uintptr_t __irq_vector_table _irq_vector_table[IRQ_TABLE_SIZE] = {
/* If there are no interrupts at all, or all interrupts are of the 'direct'
* type and bypass the _sw_isr_table, then do not generate one.
struct _isr_table_entry __sw_isr_table _sw_isr_table[IRQ_TABLE_SIZE] = {
[0 ...(IRQ_TABLE_SIZE - 1)] = {(const void *)0x42,
(void *)&z_irq_spurious},