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xtensa: dc233c: enable backtrace support

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Adds the necessary bits to enable backtrace support
for Xtensa DC233C core.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2023-08-24 13:58:26 -07:00 • committed by Carles Cufí
commit ba6c9c2136
4 changed files with 41 additions and 1 deletions
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2
arch/xtensa/Kconfig
View file

@ -46,7 +46,7 @@ config XTENSA_USE_CORE_CRT1
config XTENSA_ENABLE_BACKTRACE
bool "Backtrace on panic exception"
default y
depends on SOC_SERIES_ESP32 || SOC_FAMILY_INTEL_ADSP
depends on SOC_SERIES_ESP32 || SOC_FAMILY_INTEL_ADSP || SOC_XTENSA_DC233C
help
Enable this config option to print backtrace on panic exception

6
arch/xtensa/core/xtensa_backtrace.c
View file

@ -11,6 +11,8 @@
#include "soc/soc_memory_layout.h"
#elif defined(CONFIG_SOC_FAMILY_INTEL_ADSP)
#include "debug_helpers.h"
#elif defined(CONFIG_SOC_XTENSA_DC233C)
#include "backtrace_helpers.h"
#endif
static int mask, cause;
@ -38,6 +40,8 @@ static inline bool z_xtensa_stack_ptr_is_sane(uint32_t sp)
return esp_stack_ptr_is_sane(sp);
#elif defined(CONFIG_SOC_FAMILY_INTEL_ADSP)
return intel_adsp_ptr_is_sane(sp);
#elif defined(CONFIG_SOC_XTENSA_DC233C)
return xtensa_dc233c_stack_ptr_is_sane(sp);
#else
#warning "z_xtensa_stack_ptr_is_sane is not defined for this platform"
#endif
@ -49,6 +53,8 @@ static inline bool z_xtensa_ptr_executable(const void *p)
return esp_ptr_executable(p);
#elif defined(CONFIG_SOC_FAMILY_INTEL_ADSP)
return intel_adsp_ptr_executable(p);
#elif defined(CONFIG_SOC_XTENSA_DC233C)
return xtensa_dc233c_ptr_executable(p);
#else
#warning "z_xtensa_ptr_executable is not defined for this platform"
#endif

28
soc/xtensa/dc233c/include/backtrace_helpers.h Normal file
View file

@ -0,0 +1,28 @@
/* Copyright (c) 2022, 2023 Intel Corporation
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_SOC_XTENSA_DC233C_BACKTRACE_HELPERS_H_
#define ZEPHYR_SOC_XTENSA_DC233C_BACKTRACE_HELPERS_H_
#include <zephyr/linker/linker-defs.h>
#include <xtensa/config/core-isa.h>
static inline bool xtensa_dc233c_ptr_executable(const void *p)
{
bool in_text = ((p >= (void *)__text_region_start) &&
(p <= (void *)__text_region_end));
bool in_vecbase = ((p >= (void *)XCHAL_VECBASE_RESET_VADDR) &&
(p < (void *)CONFIG_SRAM_OFFSET));
return (in_text || in_vecbase);
}
static inline bool xtensa_dc233c_stack_ptr_is_sane(uint32_t sp)
{
return ((char *)sp >= __text_region_start);
}
#endif /* ZEPHYR_SOC_XTENSA_DC233C_BACKTRACE_HELPERS_H_ */

6
soc/xtensa/dc233c/include/xtensa-dc233c.ld
View file

@ -322,6 +322,12 @@ SECTIONS
*(.text.arch_is_in_isr)
/* To support backtracing */
*libarch__xtensa__core.a:xtensa_backtrace.c.obj(.literal.*)
*libarch__xtensa__core.a:xtensa_backtrace.c.obj(.text.*)
*libarch__xtensa__core.a:debug_helpers_asm.S.obj(.iram1.literal)
*libarch__xtensa__core.a:debug_helpers_asm.S.obj(.iram1)
*libkernel.a:fatal.c.obj(.literal.*)
*libkernel.a:fatal.c.obj(.text.*)