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https://github.com/espressif/esp-idf.git
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95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/*
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* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "hal/assist_debug_hal.h"
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#include "esp_private/hw_stack_guard.h"
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#include "esp_private/periph_ctrl.h"
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#include "esp_private/startup_internal.h"
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#include "soc/soc_caps.h"
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#include "esp_rom_sys.h"
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#include "esp_cpu.h"
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ESP_SYSTEM_INIT_FN(esp_hw_stack_guard_init, SECONDARY, ESP_SYSTEM_INIT_ALL_CORES, 101)
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{
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uint32_t core_id = esp_cpu_get_core_id();
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if (core_id == 0) {
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/* initialize the peripheral only when running on core 0 */
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periph_module_enable(PERIPH_ASSIST_DEBUG_MODULE);
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periph_module_reset(PERIPH_ASSIST_DEBUG_MODULE);
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}
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/* just in case, disable the interrupt and clear pending status */
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assist_debug_hal_sp_int_disable(core_id);
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assist_debug_hal_sp_int_clear(core_id);
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/*
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* enable interrupt
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* Note: to control hw_stack_guard use monitor enable/disable because in case:
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* - monitor == active
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* - interrupt != active
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* - trigger event happened
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* - you get an interrupt right after enabling interrupts
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* So, use monitor to disable hw_guard to avoid false-positives.
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* And keep interrupt always enabled for better performace (don't spend cpu time for enable/disable)
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*/
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assist_debug_hal_sp_int_enable(core_id);
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/* enable interrup routine */
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esp_rom_route_intr_matrix(core_id, ETS_ASSIST_DEBUG_INTR_SOURCE, ETS_ASSIST_DEBUG_INUM);
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esprv_int_set_type(ETS_ASSIST_DEBUG_INUM, INTR_TYPE_LEVEL);
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esprv_int_set_priority(ETS_ASSIST_DEBUG_INUM, SOC_INTERRUPT_LEVEL_MEDIUM);
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ESP_INTR_ENABLE(ETS_ASSIST_DEBUG_INUM);
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return ESP_OK;
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}
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/* The functions below are designed to be used in interrupt/panic handler
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* In case using them in user's code put them into critical section */
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void esp_hw_stack_guard_monitor_start(void)
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{
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uint32_t core_id = esp_cpu_get_core_id();
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/* enable monitor. Interrupt is always enabled (see comment in esp_hw_stack_guard_init()) */
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assist_debug_hal_sp_mon_enable(core_id);
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}
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void esp_hw_stack_guard_monitor_stop(void)
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{
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uint32_t core_id = esp_cpu_get_core_id();
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/* disable monitor. Interrupt is always enabled (see comment in esp_hw_stack_guard_init()) */
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assist_debug_hal_sp_mon_disable(core_id);
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}
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void esp_hw_stack_guard_set_bounds(uint32_t sp_min, uint32_t sp_max)
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{
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uint32_t core_id = esp_cpu_get_core_id();
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assist_debug_hal_set_sp_bounds(core_id, sp_min, sp_max);
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}
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void esp_hw_stack_guard_get_bounds(uint32_t *sp_min, uint32_t *sp_max)
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{
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uint32_t core_id = esp_cpu_get_core_id();
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assist_debug_hal_get_sp_bounds(core_id, sp_min, sp_max);
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}
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bool esp_hw_stack_guard_is_fired(void)
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{
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uint32_t core_id = esp_cpu_get_core_id();
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return assist_debug_hal_is_sp_ovf_fired(core_id);
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}
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uint32_t esp_hw_stack_guard_get_pc(void)
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{
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uint32_t core_id = esp_cpu_get_core_id();
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return assist_debug_hal_get_sp_ovf_pc(core_id);
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}
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