Function java_hook_on_enter

src/agent/hook/java.c:1499–1591

}

void java_hook_on_enter(int hook_index, uint64_t* saved_regs) {
    if (hook_index < 0 || hook_index >= g_java_hook_count) {
        LOGE("Invalid Java hook index: %d", hook_index);
        return;
    }

    JavaHookInfo* hook = &g_java_hooks[hook_index];

    if (g_hook_call_stack.depth < MAX_HOOK_CALL_DEPTH) {
        g_hook_call_stack.hook_indices[g_hook_call_stack.depth] = hook_index;
        g_hook_call_stack.depth++;
    } else {
        LOGW("Hook call stack overflow! depth=%d, skipping hook #%d",
             g_hook_call_stack.depth, hook_index);
        return;
    }

    g_current_java_hook_index = hook_index;

    LOGI("=== Java Hook #%d onEnter: %s.%s%s (depth=%d) ===",
         hook_index, hook->class_name, hook->method_name, hook->method_sig,
         g_hook_call_stack.depth);

    uint64_t x0 = saved_regs[0];
    uint64_t x1 = saved_regs[1];
    uint64_t x2 = saved_regs[2];
    uint64_t x3 = saved_regs[3];

    LOGI("  Args: X0=0x%llx X1=0x%llx X2=0x%llx X3=0x%llx",
         (unsigned long long)x0, (unsigned long long)x1,
         (unsigned long long)x2, (unsigned long long)x3);

    hook->skip_original = false;

    if (hook->lua_onEnter_ref != LUA_NOREF && g_lua_engine) {
        pthread_mutex_lock(&g_java_lua_mutex);
        lua_State* L = lua_engine_get_state(g_lua_engine);
        if (L) {
            lua_rawgeti(L, LUA_REGISTRYINDEX, hook->lua_onEnter_ref);

            lua_newtable(L);

            lua_pushstring(L, hook->class_name);
            lua_setfield(L, -2, "class");
            lua_pushstring(L, hook->method_name);
            lua_setfield(L, -2, "method");
            lua_pushstring(L, hook->method_sig);
            lua_setfield(L, -2, "signature");
            lua_pushboolean(L, hook->is_static);
            lua_setfield(L, -2, "isStatic");

            for (int i = 0; i < 8; i++) {
                lua_pushinteger(L, saved_regs[i]);
                lua_rawseti(L, -2, i);
            }

            lua_pushvalue(L, -1);
            int args_ref = luaL_ref(L, LUA_REGISTRYINDEX);