zephyr/arch/arm/core/cortex_m/sw_isr_table.S

60 lines
1.1 KiB
ArmAsm

/*
* Copyright (c) 2015 Wind River Systems, Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @file
* @brief ISR table for static ISR declarations for ARM
*
* Software ISR table for ARM
*/
#define _ASMLANGUAGE
#include <toolchain.h>
#include <sections.h>
#include <arch/cpu.h>
_ASM_FILE_PROLOGUE
/*
* enable preprocessor features, such
* as %expr - evaluate the expression and use it as a string
*/
.altmacro
/*
* Define an ISR table entry
* Define symbol as weak and give the section .gnu.linkonce
* prefix. This allows linker overload the symbol and the
* whole section by the one defined by a device driver
*/
.macro _isr_table_entry_declare index
WDATA(_isr_irq\index)
.section .gnu.linkonce.isr_irq\index
_isr_irq\index: .word 0xABAD1DEA, _irq_spurious
.endm
/*
* Declare the ISR table
*/
.macro _isr_table_declare from, to
counter = \from
.rept (\to - \from + 1)
_isr_table_entry_declare %counter
counter = counter + 1
.endr
.endm
GTEXT(_irq_spurious)
GDATA(_sw_isr_table)
.section .isr_irq0
.align
_sw_isr_table:
_isr_table_declare 0 CONFIG_NUM_IRQS