ardupilot/libraries/AP_InternalError/AP_InternalError.cpp

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#include "AP_InternalError.h"
#include <AP_BoardConfig/AP_BoardConfig.h>
extern const AP_HAL::HAL &hal;
// actually create the instance:
static AP_InternalError instance;
void AP_InternalError::error(const AP_InternalError::error_t e, uint16_t line) {
#if CONFIG_HAL_BOARD == HAL_BOARD_SITL
switch (e) {
case AP_InternalError::error_t::watchdog_reset:
case AP_InternalError::error_t::main_loop_stuck:
// don't panic on these to facilitate watchdog testing
break;
default:
AP_HAL::panic("internal error %u", unsigned(e));
}
#endif
internal_errors |= uint32_t(e);
total_error_count++;
last_line = line;
hal.util->persistent_data.internal_errors = internal_errors;
hal.util->persistent_data.internal_error_count = total_error_count;
hal.util->persistent_data.internal_error_last_line = line;
}
void AP_InternalError::errors_as_string(uint8_t *buffer, const uint16_t len) const
{
static const char * const error_bit_descriptions[] {
"mapfailure", // logger_mapfailure
"miss_struct", // logger_missing_logstructure
"write_mssfmt", // logger_logwrite_missingfmt
"many_deletes", // logger_too_many_deletions
"bad_getfile", // logger_bad_getfilename
"unused1",
"flush_no_sem", // logger_flushing_without_sem
"bad_curr_blk", // logger_bad_current_block
"blkcnt_bad", // logger_blockcount_mismatch
"dq_failure", // logger_dequeue_failure
"cnstring_nan", // constraining_nan
"watchdog_rst", // watchdog_reset
"iomcu_reset",
"iomcu_fail",
"spi_fail",
"main_loop_stk", // main_loop_stuck
"gcs_bad_link", // gcs_bad_missionprotocol_link
"bitmask_range",
"gcs_offset",
"i2c_isr",
"flow_of_ctrl", // flow_of_control
"sfs_recursion", // switch_full_sector_recursion
"bad_rotation",
"stack_ovrflw", // stack_overflow
};
static_assert((1U<<(ARRAY_SIZE(error_bit_descriptions))) == uint32_t(AP_InternalError::error_t::__LAST__), "too few descriptions for bits");
buffer[0] = 0;
uint32_t buffer_used = 0;
for (uint8_t i=0; i<ARRAY_SIZE(error_bit_descriptions); i++) {
if (buffer_used >= len) {
break;
}
if (internal_errors & (1U<<i)) {
const char *format;
if (i == 0) {
format = "%s";
} else {
format = ",%s";
}
const size_t written = hal.util->snprintf((char*)&buffer[buffer_used],
len-buffer_used,
format,
error_bit_descriptions[i]);
if (written <= 0) {
break;
}
buffer_used += written;
}
}
}
namespace AP {
AP_InternalError &internalerror()
{
return instance;
}
};
// stack overflow hook for low level RTOS code, C binding
void AP_stack_overflow(const char *thread_name)
{
static bool done_stack_overflow;
INTERNAL_ERROR(AP_InternalError::error_t::stack_overflow);
if (!done_stack_overflow) {
// we don't want to record the thread name more than once, as
// first overflow can trigger a 2nd
strncpy(hal.util->persistent_data.thread_name4, thread_name, 4);
done_stack_overflow = true;
}
hal.util->persistent_data.fault_type = 42; // magic value
if (!hal.util->get_soft_armed()) {
AP_HAL::panic("stack overflow %s\n", thread_name);
}
}