Function init

icicle-cortexm/fuzzware-native/native_hooks.c:83–121

}

uc_err init(uc_engine *uc, int p_do_print_exit_info, uint64_t p_fuzz_consumption_timeout, uint64_t p_instr_limit, uint32_t global_timer_scale) {
    // TODO: assumes shared endianness
    // uc->mem_write(uc->ctx, CPUID_ADDR, &CPUID_CORTEX_M4, sizeof(CPUID_CORTEX_M4));

    // Allocate memory for data managed by Fuzzware.
    struct FwContext *ctx = malloc(sizeof(struct FwContext));
    memset(ctx, 0, sizeof(struct FwContext));
    uc->fw = ctx;

    // Configure default timer state.
    ctx->config.timer_scale = global_timer_scale;
    ctx->timers.end_ind = 0;
    ctx->timers.num_inuse = 0;
    ctx->timers.cur_interval = MAX_RELOAD_VAL;
    ctx->timers.cur_countdown = MAX_RELOAD_VAL;
    ctx->timers.global_ticker = 0;

    ctx->config.do_print_exit_info = p_do_print_exit_info;

    // Add fuzz consumption timeout as timer
    ctx->config.fuzz_consumption_timeout = p_fuzz_consumption_timeout;
    ctx->fuzz_consumption_timer_id = add_timer(&uc->fw->timers, p_fuzz_consumption_timeout, fuzz_consumption_timeout_cb, NULL, TIMER_IRQ_NOT_USED);
    if(p_fuzz_consumption_timeout) {
        start_timer(uc, ctx->fuzz_consumption_timer_id);
    }

    #ifdef DEBUG_INJECT_TIMER
    // debug timer to debug precise timing consistencies
    start_timer(uc, add_timer(&uc->fw->timers, DEBUG_TIMER_TIMEOUT, test_timeout_cb, NULL, TIMER_IRQ_NOT_USED));
    #endif

    ctx->config.instr_limit = p_instr_limit;
    ctx->instr_limit_timer_id = add_timer(&uc->fw->timers, p_instr_limit, instr_limit_timeout_cb, NULL, TIMER_IRQ_NOT_USED);
    if(p_instr_limit) {
        start_timer(uc, ctx->instr_limit_timer_id);
    }

    return UC_ERR_OK;
}