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Diffstat (limited to 'zephyr/shim/src/panic.c')
| -rw-r--r-- | zephyr/shim/src/panic.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/zephyr/shim/src/panic.c b/zephyr/shim/src/panic.c deleted file mode 100644 index 22322cc4ee..0000000000 --- a/zephyr/shim/src/panic.c +++ /dev/null @@ -1,160 +0,0 @@ -/* Copyright 2021 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include <arch/cpu.h> -#include <fatal.h> -#include <logging/log.h> -#include <logging/log_ctrl.h> -#include <zephyr.h> - -#include "common.h" -#include "panic.h" - -/* - * Arch-specific configuration - * - * For each architecture, define: - * - PANIC_ARCH, which should be the corresponding arch field of the - * panic_data struct. - * - PANIC_REG_LIST, which is a macro that takes a parameter M, and - * applies M to 3-tuples of: - * - zephyr esf field name - * - panic_data struct field name - * - human readable name - */ - -#if defined(CONFIG_ARM) -#define PANIC_ARCH PANIC_ARCH_CORTEX_M -#define PANIC_REG_LIST(M) \ - M(basic.r0, cm.frame[0], a1) \ - M(basic.r1, cm.frame[1], a2) \ - M(basic.r2, cm.frame[2], a3) \ - M(basic.r3, cm.frame[3], a4) \ - M(basic.r12, cm.frame[4], ip) \ - M(basic.lr, cm.frame[5], lr) \ - M(basic.pc, cm.frame[6], pc) \ - M(basic.xpsr, cm.frame[7], xpsr) -#define PANIC_REG_EXCEPTION(pdata) pdata->cm.regs[1] -#define PANIC_REG_REASON(pdata) pdata->cm.regs[3] -#define PANIC_REG_INFO(pdata) pdata->cm.regs[4] -#elif defined(CONFIG_RISCV) && !defined(CONFIG_64BIT) -#define PANIC_ARCH PANIC_ARCH_RISCV_RV32I -#define PANIC_REG_LIST(M) \ - M(ra, riscv.regs[1], ra) \ - M(tp, riscv.regs[3], tp) \ - M(a0, riscv.regs[4], a0) \ - M(a1, riscv.regs[5], a1) \ - M(a2, riscv.regs[6], a2) \ - M(a3, riscv.regs[7], a3) \ - M(a4, riscv.regs[8], a4) \ - M(a5, riscv.regs[9], a5) \ - M(a6, riscv.regs[10], a6) \ - M(a7, riscv.regs[11], a7) \ - M(t0, riscv.regs[12], t0) \ - M(t1, riscv.regs[13], t1) \ - M(t2, riscv.regs[14], t2) \ - M(t3, riscv.regs[15], t3) \ - M(t4, riscv.regs[16], t4) \ - M(t5, riscv.regs[17], t5) \ - M(t6, riscv.regs[18], t6) \ - M(mepc, riscv.mepc, mepc) \ - M(mstatus, riscv.mcause, mstatus) -#define PANIC_REG_EXCEPTION(pdata) (pdata->riscv.mcause) -#define PANIC_REG_REASON(pdata) (pdata->riscv.regs[11]) -#define PANIC_REG_INFO(pdata) (pdata->riscv.regs[10]) -#else -/* Not implemented for this arch */ -#define PANIC_ARCH 0 -#define PANIC_REG_LIST(M) -#ifdef CONFIG_PLATFORM_EC_SOFTWARE_PANIC -static uint8_t placeholder_exception_reg; -static uint32_t placeholder_reason_reg; -static uint32_t placeholder_info_reg; -#define PANIC_REG_EXCEPTION(unused) placeholder_exception_reg -#define PANIC_REG_REASON(unused) placeholder_reason_reg -#define PANIC_REG_INFO(unused) placeholder_info_reg -#endif /* CONFIG_PLATFORM_EC_SOFTWARE_PANIC */ -#endif - -/* Macros to be applied to PANIC_REG_LIST as M */ -#define PANIC_COPY_REGS(esf_field, pdata_field, human_name) \ - pdata->pdata_field = esf->esf_field; -#define PANIC_PRINT_REGS(esf_field, pdata_field, human_name) \ - panic_printf(" %-8s = 0x%08X\n", #human_name, pdata->pdata_field); - -void panic_data_print(const struct panic_data *pdata) -{ - PANIC_REG_LIST(PANIC_PRINT_REGS); -} - -#ifndef CONFIG_LOG -static void copy_esf_to_panic_data(const z_arch_esf_t *esf, - struct panic_data *pdata) -{ - pdata->arch = PANIC_ARCH; - pdata->struct_version = 2; - pdata->flags = 0; - pdata->reserved = 0; - pdata->struct_size = sizeof(*pdata); - pdata->magic = PANIC_DATA_MAGIC; - - PANIC_REG_LIST(PANIC_COPY_REGS); -} - -void k_sys_fatal_error_handler(unsigned int reason, const z_arch_esf_t *esf) -{ - panic_printf("Fatal error: %u\n", reason); - - if (PANIC_ARCH && esf) { - copy_esf_to_panic_data(esf, get_panic_data_write()); - panic_data_print(panic_get_data()); - } - - LOG_PANIC(); - k_fatal_halt(reason); - CODE_UNREACHABLE; -} -#endif /* CONFIG_LOG */ - -#ifdef CONFIG_PLATFORM_EC_SOFTWARE_PANIC -void panic_set_reason(uint32_t reason, uint32_t info, uint8_t exception) -{ - struct panic_data * const pdata = get_panic_data_write(); - - /* Setup panic data structure */ - memset(pdata, 0, CONFIG_PANIC_DATA_SIZE); - pdata->magic = PANIC_DATA_MAGIC; - pdata->struct_size = CONFIG_PANIC_DATA_SIZE; - pdata->struct_version = 2; - pdata->arch = PANIC_ARCH; - - /* Log panic cause */ - PANIC_REG_EXCEPTION(pdata) = exception; - PANIC_REG_REASON(pdata) = reason; - PANIC_REG_INFO(pdata) = info; - - /* Allow architecture specific logic */ - arch_panic_set_reason(reason, info, exception); -} - -void panic_get_reason(uint32_t *reason, uint32_t *info, uint8_t *exception) -{ - struct panic_data * const pdata = panic_get_data(); - - if (pdata && pdata->struct_version == 2) { - *exception = PANIC_REG_EXCEPTION(pdata); - *reason = PANIC_REG_REASON(pdata); - *info = PANIC_REG_INFO(pdata); - } else { - *exception = *reason = *info = 0; - } -} - -__overridable void arch_panic_set_reason(uint32_t reason, uint32_t info, - uint8_t exception) -{ - /* Default implementation, do nothing. */ -} -#endif /* CONFIG_PLATFORM_EC_SOFTWARE_PANIC */ |