from esp_algorithm.h:139
struct esp_algorithm_stub
{
target_addr_t entry;
struct working_area *code;
struct working_area *data;
struct working_area *tramp;
struct working_area *padding;
target_addr_t tramp_addr;
target_addr_t tramp_mapped_addr;
struct working_area *stack;
target_addr_t stack_addr;
target_addr_t log_buff_addr;
uint32_t log_buff_size;
void *ainfo;
};