[352] | 1 | /* mbed Microcontroller Library
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| 2 | * Copyright (c) 2006-2013 ARM Limited
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 | #include <stdlib.h>
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| 17 | #include <stdarg.h>
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[374] | 18 | #include <string.h>
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[352] | 19 | #include "device.h"
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[374] | 20 | #include "platform/mbed_critical.h"
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[352] | 21 | #include "platform/mbed_error.h"
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[374] | 22 | #include "platform/mbed_error_hist.h"
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[352] | 23 | #include "platform/mbed_interface.h"
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[374] | 24 | #ifdef MBED_CONF_RTOS_PRESENT
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| 25 | #include "rtx_os.h"
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| 26 | #endif
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| 27 |
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[352] | 28 | #if DEVICE_STDIO_MESSAGES
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| 29 | #include <stdio.h>
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| 30 | #endif
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| 31 |
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[374] | 32 | #define MBED_CONF_PLATFORM_ERROR_DECODE_HTTP_URL_STR "\nFor more info, visit: https://armmbed.github.io/mbedos-error/?error=0x%08X" // set by library:platform
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| 33 |
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| 34 | //Helper macro to get the current SP
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| 35 | #define GET_CURRENT_SP(sp) \
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| 36 | { \
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| 37 | /*If in Handler mode we are always using MSP*/ \
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| 38 | if ( __get_IPSR() != 0U ) { \
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| 39 | sp = __get_MSP(); \
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| 40 | } else { \
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| 41 | /*Look into CONTROL.SPSEL value*/ \
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| 42 | if ((__get_CONTROL() & 2U) == 0U) { \
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| 43 | sp = __get_MSP();/*Read MSP*/ \
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| 44 | } else { \
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| 45 | sp = __get_PSP();/*Read PSP*/ \
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| 46 | } \
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| 47 | } \
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| 48 | }
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| 49 |
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[352] | 50 | #ifndef NDEBUG
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[374] | 51 | #define ERROR_REPORT(ctx, error_msg) print_error_report(ctx, error_msg)
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| 52 | #else
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| 53 | #define ERROR_REPORT(ctx, error_msg) ((void) 0)
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| 54 | #endif
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| 55 |
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| 56 | static uint8_t error_in_progress = 0;
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| 57 | static int error_count = 0;
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| 58 | static mbed_error_ctx first_error_ctx = {0};
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| 59 | static mbed_error_ctx last_error_ctx = {0};
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| 60 | static mbed_error_hook_t error_hook = NULL;
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| 61 | static void print_error_report(mbed_error_ctx *ctx, const char *);
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| 62 | static mbed_error_status_t handle_error(mbed_error_status_t error_status, unsigned int error_value, const char *filename, int line_number, void *caller);
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| 63 |
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| 64 | //Helper function to halt the system
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| 65 | static void mbed_halt_system(void)
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| 66 | {
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| 67 | //If not in ISR context exit, otherwise spin on WFI
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| 68 | if (core_util_is_isr_active() || !core_util_are_interrupts_enabled()) {
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| 69 | for (;;) {
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| 70 | __WFI();
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| 71 | }
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| 72 | } else {
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| 73 | //exit eventually calls mbed_die
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| 74 | exit(1);
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| 75 | }
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| 76 | }
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| 77 |
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| 78 | WEAK void error(const char *format, ...)
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| 79 | {
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| 80 |
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| 81 | // Prevent recursion if error is called again
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| 82 | if (error_in_progress) {
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| 83 | return;
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| 84 | }
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| 85 |
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| 86 | //Call handle_error/print_error_report permanently setting error_in_progress flag
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| 87 | handle_error(MBED_ERROR_UNKNOWN, 0, NULL, 0, MBED_CALLER_ADDR());
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| 88 | ERROR_REPORT(&last_error_ctx, "Fatal Run-time error");
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| 89 | error_in_progress = 1;
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| 90 |
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| 91 | #ifndef NDEBUG
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[352] | 92 | va_list arg;
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| 93 | va_start(arg, format);
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| 94 | mbed_error_vfprintf(format, arg);
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| 95 | va_end(arg);
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| 96 | #endif
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| 97 | exit(1);
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| 98 | }
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[374] | 99 |
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| 100 | //Set an error status with the error handling system
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| 101 | static mbed_error_status_t handle_error(mbed_error_status_t error_status, unsigned int error_value, const char *filename, int line_number, void *caller)
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| 102 | {
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| 103 | mbed_error_ctx current_error_ctx;
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| 104 |
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| 105 | //Error status should always be < 0
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| 106 | if (error_status >= 0) {
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| 107 | //This is a weird situation, someone called mbed_error with invalid error code.
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| 108 | //We will still handle the situation but change the error code to ERROR_INVALID_ARGUMENT, atleast the context will have info on who called it
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| 109 | error_status = MBED_ERROR_INVALID_ARGUMENT;
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| 110 | }
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| 111 |
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| 112 | //Prevent corruption by holding out other callers
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| 113 | //and we also need this until we remove the "error" call completely
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| 114 | while (error_in_progress == 1);
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| 115 |
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| 116 | //Use critsect here, as we don't want inadvertant modification of this global variable
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| 117 | core_util_critical_section_enter();
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| 118 | error_in_progress = 1;
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| 119 | core_util_critical_section_exit();
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| 120 |
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| 121 | //Increment error count
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| 122 | error_count++;
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| 123 |
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| 124 | //Clear the context capturing buffer
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| 125 | memset(¤t_error_ctx, sizeof(mbed_error_ctx), 0);
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| 126 | //Capture error information
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| 127 | current_error_ctx.error_status = error_status;
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| 128 | current_error_ctx.error_address = (uint32_t)caller;
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| 129 | current_error_ctx.error_value = error_value;
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| 130 | #if 0 //def MBED_CONF_RTOS_PRESENT
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| 131 | //Capture thread info
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| 132 | osRtxThread_t *current_thread = osRtxInfo.thread.run.curr;
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| 133 | current_error_ctx.thread_id = (uint32_t)current_thread;
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| 134 | current_error_ctx.thread_entry_address = (uint32_t)current_thread->thread_addr;
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| 135 | current_error_ctx.thread_stack_size = current_thread->stack_size;
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| 136 | current_error_ctx.thread_stack_mem = (uint32_t)current_thread->stack_mem;
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| 137 | #ifdef TARGET_CORTEX_M
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| 138 | GET_CURRENT_SP(current_error_ctx.thread_current_sp);
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| 139 | #endif //TARGET_CORTEX_M
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| 140 |
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| 141 | #endif //MBED_CONF_RTOS_PRESENT
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| 142 |
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| 143 | #if MBED_CONF_PLATFORM_ERROR_FILENAME_CAPTURE_ENABLED
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| 144 | //Capture filename/linenumber if provided
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| 145 | //Index for tracking error_filename
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| 146 | memset(¤t_error_ctx.error_filename, 0, MBED_CONF_PLATFORM_MAX_ERROR_FILENAME_LEN);
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| 147 | strncpy(current_error_ctx.error_filename, filename, MBED_CONF_PLATFORM_MAX_ERROR_FILENAME_LEN);
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| 148 | current_error_ctx.error_line_number = line_number;
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| 149 | #endif
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| 150 |
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| 151 | //Capture the fist system error and store it
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| 152 | if (error_count == 1) { //first error
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| 153 | memcpy(&first_error_ctx, ¤t_error_ctx, sizeof(mbed_error_ctx));
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| 154 | }
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| 155 |
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| 156 | //copy this error to last error
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| 157 | memcpy(&last_error_ctx, ¤t_error_ctx, sizeof(mbed_error_ctx));
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| 158 |
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| 159 | #if MBED_CONF_PLATFORM_ERROR_HIST_ENABLED
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| 160 | //Log the error with error log
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| 161 | mbed_error_hist_put(¤t_error_ctx);
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| 162 | #endif
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| 163 |
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| 164 | //Call the error hook if available
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| 165 | if (error_hook != NULL) {
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| 166 | error_hook(&last_error_ctx);
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| 167 | }
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| 168 |
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| 169 | error_in_progress = 0;
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| 170 |
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| 171 | return MBED_SUCCESS;
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| 172 | }
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| 173 |
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| 174 | //Return the first error
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| 175 | mbed_error_status_t mbed_get_first_error(void)
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| 176 | {
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| 177 | //return the first error recorded
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| 178 | return first_error_ctx.error_status;
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| 179 | }
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| 180 |
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| 181 | //Return the last error
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| 182 | mbed_error_status_t mbed_get_last_error(void)
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| 183 | {
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| 184 | //return the last error recorded
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| 185 | return last_error_ctx.error_status;
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| 186 | }
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| 187 |
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| 188 | //Gets the current error count
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| 189 | int mbed_get_error_count(void)
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| 190 | {
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| 191 | //return the current error count
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| 192 | return error_count;
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| 193 | }
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| 194 |
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| 195 | //Sets a fatal error
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| 196 | mbed_error_status_t mbed_warning(mbed_error_status_t error_status, const char *error_msg, unsigned int error_value, const char *filename, int line_number)
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| 197 | {
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| 198 | return handle_error(error_status, error_value, filename, line_number, MBED_CALLER_ADDR());
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| 199 | }
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| 200 |
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| 201 | //Sets a fatal error, this function is marked WEAK to be able to override this for some tests
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| 202 | WEAK mbed_error_status_t mbed_error(mbed_error_status_t error_status, const char *error_msg, unsigned int error_value, const char *filename, int line_number)
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| 203 | {
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| 204 | //set the error reported and then halt the system
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| 205 | if (MBED_SUCCESS != handle_error(error_status, error_value, filename, line_number, MBED_CALLER_ADDR())) {
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| 206 | return MBED_ERROR_FAILED_OPERATION;
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| 207 | }
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| 208 |
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| 209 | //On fatal errors print the error context/report
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| 210 | ERROR_REPORT(&last_error_ctx, error_msg);
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| 211 | mbed_halt_system();
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| 212 |
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| 213 | return MBED_ERROR_FAILED_OPERATION;
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| 214 | }
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| 215 |
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| 216 | //Register an application defined callback with error handling
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| 217 | mbed_error_status_t mbed_set_error_hook(mbed_error_hook_t error_hook_in)
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| 218 | {
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| 219 | //register the new hook/callback
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| 220 | if (error_hook_in != NULL) {
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| 221 | error_hook = error_hook_in;
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| 222 | return MBED_SUCCESS;
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| 223 | }
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| 224 |
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| 225 | return MBED_ERROR_INVALID_ARGUMENT;
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| 226 | }
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| 227 |
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| 228 | //Retrieve the first error context from error log
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| 229 | mbed_error_status_t mbed_get_first_error_info(mbed_error_ctx *error_info)
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| 230 | {
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| 231 | memcpy(error_info, &first_error_ctx, sizeof(first_error_ctx));
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| 232 | return MBED_SUCCESS;
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| 233 | }
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| 234 |
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| 235 | //Retrieve the last error context from error log
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| 236 | mbed_error_status_t mbed_get_last_error_info(mbed_error_ctx *error_info)
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| 237 | {
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| 238 | memcpy(error_info, &last_error_ctx, sizeof(mbed_error_ctx));
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| 239 | return MBED_SUCCESS;
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| 240 | }
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| 241 |
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| 242 | //Makes an mbed_error_status_t value
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| 243 | mbed_error_status_t mbed_make_error(mbed_error_type_t error_type, mbed_module_type_t entity, mbed_error_code_t error_code)
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| 244 | {
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| 245 | switch (error_type) {
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| 246 | case MBED_ERROR_TYPE_POSIX:
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| 247 | if (error_code >= MBED_POSIX_ERROR_BASE && error_code <= MBED_SYSTEM_ERROR_BASE) {
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| 248 | return -error_code;
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| 249 | }
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| 250 | break;
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| 251 |
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| 252 | case MBED_ERROR_TYPE_SYSTEM:
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| 253 | if (error_code >= MBED_SYSTEM_ERROR_BASE && error_code <= MBED_CUSTOM_ERROR_BASE) {
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| 254 | return MAKE_MBED_ERROR(MBED_ERROR_TYPE_SYSTEM, entity, error_code);
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| 255 | }
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| 256 | break;
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| 257 |
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| 258 | case MBED_ERROR_TYPE_CUSTOM:
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| 259 | if (error_code >= MBED_CUSTOM_ERROR_BASE) {
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| 260 | return MAKE_MBED_ERROR(MBED_ERROR_TYPE_CUSTOM, entity, error_code);
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| 261 | }
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| 262 | break;
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| 263 |
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| 264 | default:
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| 265 | break;
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| 266 | }
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| 267 |
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| 268 | //If we are passed incorrect values return a generic system error
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| 269 | return MAKE_MBED_ERROR(MBED_ERROR_TYPE_SYSTEM, MBED_MODULE_UNKNOWN, MBED_ERROR_CODE_UNKNOWN);
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| 270 | }
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| 271 |
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| 272 | /**
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| 273 | * Clears all the last error, error count and all entries in the error log.
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| 274 | * @return 0 or MBED_SUCCESS on success.
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| 275 | *
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| 276 | */
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| 277 | mbed_error_status_t mbed_clear_all_errors(void)
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| 278 | {
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| 279 | mbed_error_status_t status = MBED_SUCCESS;
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| 280 |
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| 281 | //Make sure we dont multiple clients resetting
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| 282 | core_util_critical_section_enter();
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| 283 | //Clear the error and context capturing buffer
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| 284 | memset(&last_error_ctx, sizeof(mbed_error_ctx), 0);
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| 285 | //reset error count to 0
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| 286 | error_count = 0;
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| 287 | #if MBED_CONF_PLATFORM_ERROR_HIST_ENABLED
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| 288 | status = mbed_error_hist_reset();
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| 289 | #endif
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| 290 | core_util_critical_section_exit();
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| 291 |
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| 292 | return status;
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| 293 | }
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| 294 |
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| 295 | #if MBED_CONF_PLATFORM_ERROR_ALL_THREADS_INFO && defined(MBED_CONF_RTOS_PRESENT)
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| 296 | /* Prints info of a thread(using osRtxThread_t struct)*/
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| 297 | static void print_thread(osRtxThread_t *thread)
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| 298 | {
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| 299 | mbed_error_printf("\nState: 0x%08X Entry: 0x%08X Stack Size: 0x%08X Mem: 0x%08X SP: 0x%08X", thread->state, thread->thread_addr, thread->stack_size, (uint32_t)thread->stack_mem, thread->sp);
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| 300 | }
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| 301 |
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| 302 | /* Prints thread info from a list */
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| 303 | static void print_threads_info(osRtxThread_t *threads)
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| 304 | {
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| 305 | while (threads != NULL) {
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| 306 | print_thread(threads);
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| 307 | threads = threads->thread_next;
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| 308 | }
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| 309 | }
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| 310 | #endif
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| 311 |
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| 312 | #ifndef NDEBUG
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| 313 | static void print_error_report(mbed_error_ctx *ctx, const char *error_msg)
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| 314 | {
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| 315 | uint32_t error_code = MBED_GET_ERROR_CODE(ctx->error_status);
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| 316 | uint32_t error_module = MBED_GET_ERROR_MODULE(ctx->error_status);
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| 317 |
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| 318 | mbed_error_printf("\n\n++ MbedOS Error Info ++\nError Status: 0x%X Code: %d Module: %d\nError Message: ", ctx->error_status, error_code, error_module);
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| 319 |
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| 320 | switch (error_code) {
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| 321 | //These are errors reported by kernel handled from mbed_rtx_handlers
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| 322 | case MBED_ERROR_CODE_RTOS_EVENT:
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| 323 | mbed_error_printf("Kernel Error: 0x%X, ", ctx->error_value);
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| 324 | break;
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| 325 |
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| 326 | case MBED_ERROR_CODE_RTOS_THREAD_EVENT:
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| 327 | mbed_error_printf("Thread: 0x%X, ", ctx->error_value);
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| 328 | break;
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| 329 |
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| 330 | case MBED_ERROR_CODE_RTOS_MUTEX_EVENT:
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| 331 | mbed_error_printf("Mutex: 0x%X, ", ctx->error_value);
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| 332 | break;
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| 333 |
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| 334 | case MBED_ERROR_CODE_RTOS_SEMAPHORE_EVENT:
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| 335 | mbed_error_printf("Semaphore: 0x%X, ", ctx->error_value);
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| 336 | break;
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| 337 |
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| 338 | case MBED_ERROR_CODE_RTOS_MEMORY_POOL_EVENT:
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| 339 | mbed_error_printf("MemoryPool: 0x%X, ", ctx->error_value);
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| 340 | break;
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| 341 |
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| 342 | case MBED_ERROR_CODE_RTOS_EVENT_FLAGS_EVENT:
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| 343 | mbed_error_printf("EventFlags: 0x%X, ", ctx->error_value);
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| 344 | break;
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| 345 |
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| 346 | case MBED_ERROR_CODE_RTOS_TIMER_EVENT:
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| 347 | mbed_error_printf("Timer: 0x%X, ", ctx->error_value);
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| 348 | break;
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| 349 |
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| 350 | case MBED_ERROR_CODE_RTOS_MESSAGE_QUEUE_EVENT:
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| 351 | mbed_error_printf("MessageQueue: 0x%X, ", ctx->error_value);
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| 352 | break;
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| 353 |
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| 354 | default:
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| 355 | //Nothing to do here, just print the error info down
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| 356 | break;
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| 357 | }
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| 358 | mbed_error_printf(error_msg);
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| 359 | mbed_error_printf("\nLocation: 0x%X", ctx->error_address);
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| 360 |
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| 361 | #if MBED_CONF_PLATFORM_ERROR_FILENAME_CAPTURE_ENABLED && !defined(NDEBUG)
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| 362 | if ((NULL != ctx->error_filename[0]) && (ctx->error_line_number != 0)) {
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| 363 | //for string, we must pass address of a ptr which has the address of the string
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| 364 | mbed_error_printf("\nFile:%s+%d", ctx->error_filename, ctx->error_line_number);
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| 365 | }
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| 366 | #endif
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| 367 |
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| 368 | mbed_error_printf("\nError Value: 0x%X", ctx->error_value);
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| 369 | #ifdef TARGET_CORTEX_M
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| 370 | mbed_error_printf("\nCurrent Thread: Id: 0x%X Entry: 0x%X StackSize: 0x%X StackMem: 0x%X SP: 0x%X ",
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| 371 | ctx->thread_id, ctx->thread_entry_address, ctx->thread_stack_size, ctx->thread_stack_mem, ctx->thread_current_sp);
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| 372 | #else
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| 373 | //For Cortex-A targets we dont have support to capture the current SP
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| 374 | mbed_error_printf("\nCurrent Thread: Id: 0x%X Entry: 0x%X StackSize: 0x%X StackMem: 0x%X ",
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| 375 | ctx->thread_id, ctx->thread_entry_address, ctx->thread_stack_size, ctx->thread_stack_mem);
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| 376 | #endif //TARGET_CORTEX_M
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| 377 |
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| 378 | #if MBED_CONF_PLATFORM_ERROR_ALL_THREADS_INFO && defined(MBED_CONF_RTOS_PRESENT)
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| 379 | mbed_error_printf("\nNext:");
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| 380 | print_thread(osRtxInfo.thread.run.next);
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| 381 |
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| 382 | mbed_error_printf("\nWait:");
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| 383 | osRtxThread_t *threads = (osRtxThread_t *)&osRtxInfo.thread.wait_list;
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| 384 | print_threads_info(threads);
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| 385 |
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| 386 | mbed_error_printf("\nDelay:");
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| 387 | threads = (osRtxThread_t *)&osRtxInfo.thread.delay_list;
|
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| 388 | print_threads_info(threads);
|
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| 389 |
|
---|
| 390 | mbed_error_printf("\nIdle:");
|
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| 391 | threads = (osRtxThread_t *)&osRtxInfo.thread.idle;
|
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| 392 | print_threads_info(threads);
|
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| 393 | #endif
|
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| 394 | mbed_error_printf(MBED_CONF_PLATFORM_ERROR_DECODE_HTTP_URL_STR, ctx->error_status);
|
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| 395 | mbed_error_printf("\n-- MbedOS Error Info --\n");
|
---|
| 396 | }
|
---|
| 397 | #endif //ifndef NDEBUG
|
---|
| 398 |
|
---|
| 399 | #if MBED_CONF_PLATFORM_ERROR_HIST_ENABLED
|
---|
| 400 | //Retrieve the error context from error log at the specified index
|
---|
| 401 | mbed_error_status_t mbed_get_error_hist_info(int index, mbed_error_ctx *error_info)
|
---|
| 402 | {
|
---|
| 403 | return mbed_error_hist_get(index, error_info);
|
---|
| 404 | }
|
---|
| 405 |
|
---|
| 406 | //Retrieve the error log count
|
---|
| 407 | int mbed_get_error_hist_count(void)
|
---|
| 408 | {
|
---|
| 409 | return mbed_error_hist_get_count();
|
---|
| 410 | }
|
---|
| 411 |
|
---|
| 412 | mbed_error_status_t mbed_save_error_hist(const char *path)
|
---|
| 413 | {
|
---|
| 414 | mbed_error_status_t ret = MBED_SUCCESS;
|
---|
| 415 | mbed_error_ctx ctx = {0};
|
---|
| 416 | int log_count = mbed_error_hist_get_count();
|
---|
| 417 | FILE *error_log_file = NULL;
|
---|
| 418 |
|
---|
| 419 | //Ensure path is valid
|
---|
| 420 | if (path == NULL) {
|
---|
| 421 | ret = MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_INVALID_ARGUMENT);
|
---|
| 422 | goto exit;
|
---|
| 423 | }
|
---|
| 424 |
|
---|
| 425 | //Open the file for saving the error log info
|
---|
| 426 | if ((error_log_file = fopen(path, "w")) == NULL) {
|
---|
| 427 | ret = MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_OPEN_FAILED);
|
---|
| 428 | goto exit;
|
---|
| 429 | }
|
---|
| 430 |
|
---|
| 431 | //First store the first and last errors
|
---|
| 432 | if (fprintf(error_log_file, "\nFirst Error: Status:0x%x ThreadId:0x%x Address:0x%x Value:0x%x\n",
|
---|
| 433 | (unsigned int)first_error_ctx.error_status,
|
---|
| 434 | (unsigned int)first_error_ctx.thread_id,
|
---|
| 435 | (unsigned int)first_error_ctx.error_address,
|
---|
| 436 | (unsigned int)first_error_ctx.error_value) <= 0) {
|
---|
| 437 | ret = MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_WRITE_FAILED);
|
---|
| 438 | goto exit;
|
---|
| 439 | }
|
---|
| 440 |
|
---|
| 441 | if (fprintf(error_log_file, "\nLast Error: Status:0x%x ThreadId:0x%x Address:0x%x Value:0x%x\n",
|
---|
| 442 | (unsigned int)last_error_ctx.error_status,
|
---|
| 443 | (unsigned int)last_error_ctx.thread_id,
|
---|
| 444 | (unsigned int)last_error_ctx.error_address,
|
---|
| 445 | (unsigned int)last_error_ctx.error_value) <= 0) {
|
---|
| 446 | ret = MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_WRITE_FAILED);
|
---|
| 447 | goto exit;
|
---|
| 448 | }
|
---|
| 449 |
|
---|
| 450 | //Update with error log info
|
---|
| 451 | while (--log_count >= 0) {
|
---|
| 452 | mbed_error_hist_get(log_count, &ctx);
|
---|
| 453 | //first line of file will be error log count
|
---|
| 454 | if (fprintf(error_log_file, "\n%d: Status:0x%x ThreadId:0x%x Address:0x%x Value:0x%x\n",
|
---|
| 455 | log_count,
|
---|
| 456 | (unsigned int)ctx.error_status,
|
---|
| 457 | (unsigned int)ctx.thread_id,
|
---|
| 458 | (unsigned int)ctx.error_address,
|
---|
| 459 | (unsigned int)ctx.error_value) <= 0) {
|
---|
| 460 | ret = MBED_MAKE_ERROR(MBED_MODULE_PLATFORM, MBED_ERROR_CODE_WRITE_FAILED);
|
---|
| 461 | goto exit;
|
---|
| 462 | }
|
---|
| 463 | }
|
---|
| 464 |
|
---|
| 465 | exit:
|
---|
| 466 | fclose(error_log_file);
|
---|
| 467 |
|
---|
| 468 | return ret;
|
---|
| 469 | }
|
---|
| 470 | #endif
|
---|
| 471 |
|
---|