[问答]

RT_Thread Studio到底是用什么工具构建的？Scons还是Cmake？

问答对人有帮助，内容完整，我也想知道答案 0 因为我在RTThread Studio上新建5.1.0版本工程时遇到了warning，最后找到是没有定义_RT_KERNEL_SOURCE这个宏定义导致的。 make -j16 all arm-none-eabi-gcc "../rt-thread/src/klibc/kstdio.c" arm-none-eabi-gcc "../rt-thread/src/klibc/kstring.c" arm-none-eabi-gcc "../rt-thread/src/clock.c" arm-none-eabi-gcc "../rt-thread/src/components.c" arm-none-eabi-gcc "../rt-thread/src/idle.c" arm-none-eabi-gcc "../rt-thread/src/ipc.c" arm-none-eabi-gcc "../rt-thread/src/irq.c" arm-none-eabi-gcc "../rt-thread/src/kservice.c" ../rt-thread/src/klibc/kstdio.c:294:9: warning: unknown option after '#pragma GCC diagnostic' kind [-Wpragmas] #pragma GCC diagnostic ignored "-Wimplicit-fallthrough" ^ arm-none-eabi-gcc "../rt-thread/src/mem.c" ../rt-thread/src/clock.c: In function 'rt_tick_increase': ../rt-thread/src/clock.c:100:5: warning: implicit declaration of function 'rt_sched_tick_increase' [-Wimplicit-function-declaration] rt_sched_tick_increase(); ^ arm-none-eabi-gcc "../rt-thread/src/mempool.c" arm-none-eabi-gcc "../rt-thread/src/object.c" ../rt-thread/src/ipc.c: In function 'rt_susp_list_dequeue': ../rt-thread/src/ipc.c:118:17: warning: implicit declaration of function 'rt_sched_thread_ready' [-Wimplicit-function-declaration] error = rt_sched_thread_ready(thread); ^ ../rt-thread/src/ipc.c: In function 'rt_susp_list_enqueue': ../rt-thread/src/ipc.c:262:21: warning: implicit declaration of function 'rt_sched_thread_get_curr_prio' [-Wimplicit-function-declaration] if (rt_sched_thread_get_curr_prio(thread) < rt_sched_thread_get_curr_prio(sthread)) ^ ../rt-thread/src/ipc.c: In function '_thread_get_mutex_priority': ../rt-thread/src/ipc.c:849:27: warning: implicit declaration of function 'rt_sched_thread_get_init_prio' [-Wimplicit-function-declaration] rt_uint8_t priority = rt_sched_thread_get_init_prio(thread); ^ ../rt-thread/src/ipc.c: In function '_thread_update_priority': ../rt-thread/src/ipc.c:876:11: warning: implicit declaration of function 'rt_sched_thread_change_priority' [-Wimplicit-function-declaration] ret = rt_sched_thread_change_priority(thread, priority); ^ ../rt-thread/src/ipc.c:878:31: warning: implicit declaration of function 'rt_sched_thread_is_suspended' [-Wimplicit-function-declaration] while ((ret == RT_EOK) && rt_sched_thread_is_suspended(thread)) ^ arm-none-eabi-gcc "../rt-thread/src/scheduler_comm.c" arm-none-eabi-gcc "../rt-thread/src/scheduler_up.c" arm-none-eabi-gcc "../rt-thread/src/thread.c" arm-none-eabi-gcc "../rt-thread/src/timer.c" arm-none-eabi-gcc "../rt-thread/libcpu/arm/cortex-m4/context_gcc.S" ../rt-thread/src/scheduler_comm.c: In function 'rt_sched_thread_init_ctx': ../rt-thread/src/scheduler_comm.c:30:5: warning: implicit declaration of function 'rt_sched_thread_init_priv' [-Wimplicit-function-declaration] rt_sched_thread_init_priv(thread, tick, priority); ^ ../rt-thread/src/scheduler_comm.c: In function 'rt_sched_thread_ready': ../rt-thread/src/scheduler_comm.c:140:13: warning: implicit declaration of function 'rt_sched_insert_thread' [-Wimplicit-function-declaration] rt_sched_insert_thread(thread); ^ ../rt-thread/src/scheduler_comm.c: In function 'rt_sched_thread_change_priority': ../rt-thread/src/scheduler_comm.c:184:9: warning: implicit declaration of function 'rt_sched_remove_thread' [-Wimplicit-function-declaration] rt_sched_remove_thread(thread); ^ arm-none-eabi-gcc "../rt-thread/libcpu/arm/cortex-m4/cpuport.c" arm-none-eabi-gcc "../rt-thread/libcpu/arm/common/atomic_arm.c" ../rt-thread/src/scheduler_up.c: In function 'rt_system_scheduler_start': ../rt-thread/src/scheduler_up.c:180:5: warning: implicit declaration of function 'rt_sched_remove_thread' [-Wimplicit-function-declaration] rt_sched_remove_thread(to_thread); ^ ../rt-thread/src/scheduler_up.c: In function 'rt_schedule': ../rt-thread/src/scheduler_up.c:249:21: warning: implicit declaration of function 'rt_sched_insert_thread' [-Wimplicit-function-declaration] rt_sched_insert_thread(from_thread); ^ ../rt-thread/src/scheduler_up.c: At top level: ../rt-thread/src/scheduler_up.c:370:6: warning: conflicting types for 'rt_sched_insert_thread' void rt_sched_insert_thread(struct rt_thread thread) ^ ../rt-thread/src/scheduler_up.c:249:21: note: previous implicit declaration of 'rt_sched_insert_thread' was here rt_sched_insert_thread(from_thread); ^ ../rt-thread/src/scheduler_up.c:422:6: warning: conflicting types for 'rt_sched_remove_thread' void rt_sched_remove_thread(struct rt_thread thread) ^ ../rt-thread/src/scheduler_up.c:180:5: note: previous implicit declaration of 'rt_sched_remove_thread' was here rt_sched_remove_thread(to_thread); ^ arm-none-eabi-gcc "../rt-thread/libcpu/arm/common/div0.c" ../rt-thread/src/thread.c: In function '_thread_exit': ../rt-thread/src/thread.c:92:5: warning: implicit declaration of function 'rt_sched_remove_thread' [-Wimplicit-function-declaration] rt_sched_remove_thread(thread); ^ ../rt-thread/src/thread.c:98:5: warning: implicit declaration of function 'rt_sched_thread_close' [-Wimplicit-function-declaration] rt_sched_thread_close(thread); ^ In file included from ../rt-thread/src/thread.c:41:0: ../rt-thread/src/thread.c: In function '_thread_timeout': ../rt-thread/src/thread.c:134:15: warning: implicit declaration of function 'rt_sched_thread_is_suspended' [-Wimplicit-function-declaration] RT_ASSERT(rt_sched_thread_is_suspended(thread)); ^ D:softwareRT-ThreadStudioworkspace510rt-threadinclude/rtthread.h:782:7: note: in definition of macro 'RT_ASSERT' if (!(EX)) ^ ../rt-thread/src/thread.c:142:5: warning: implicit declaration of function 'rt_sched_insert_thread' [-Wimplicit-function-declaration] rt_sched_insert_thread(thread); ^ ../rt-thread/src/thread.c: In function '_thread_init': ../rt-thread/src/thread.c:193:5: warning: implicit declaration of function 'rt_sched_thread_init_ctx' [-Wimplicit-function-declaration] rt_sched_thread_init_ctx(thread, tick, priority); ^ ../rt-thread/src/thread.c: In function 'rt_thread_startup': ../rt-thread/src/thread.c:404:5: warning: implicit declaration of function 'rt_sched_thread_startup' [-Wimplicit-function-declaration] rt_sched_thread_startup(thread); ^ ../rt-thread/src/thread.c: In function '_thread_detach': ../rt-thread/src/thread.c:452:21: warning: implicit declaration of function 'rt_sched_thread_get_stat' [-Wimplicit-function-declaration] thread_status = rt_sched_thread_get_stat(thread); ^ ../rt-thread/src/thread.c: In function 'rt_thread_yield': ../rt-thread/src/thread.c:583:5: warning: implicit declaration of function 'rt_sched_thread_yield' [-Wimplicit-function-declaration] rt_sched_thread_yield(rt_thread_self()); ^ ../rt-thread/src/thread.c: In function 'rt_thread_control': ../rt-thread/src/thread.c:786:21: warning: implicit declaration of function 'rt_sched_thread_change_priority' [-Wimplicit-function-declaration] error = rt_sched_thread_change_priority(thread, (rt_uint8_t )arg); ^ ../rt-thread/src/thread.c:819:20: warning: implicit declaration of function 'rt_sched_thread_bind_cpu' [-Wimplicit-function-declaration] return rt_sched_thread_bind_cpu(thread, cpu); ^ ../rt-thread/src/thread.c: In function 'rt_thread_suspend_to_list': ../rt-thread/src/thread.c:949:5: warning: implicit declaration of function 'rt_sched_thread_timer_stop' [-Wimplicit-function-declaration] rt_sched_thread_timer_stop(thread);d ^ ../rt-thread/src/thread.c: In function 'rt_thread_resume': ../rt-thread/src/thread.c:1007:13: warning: implicit declaration of function 'rt_sched_thread_ready' [-Wimplicit-function-declaration] error = rt_sched_thread_ready(thread); ^ arm-none-eabi-gcc "../rt-thread/libcpu/arm/common/showmem.c" ../rt-thread/src/timer.c: In function 'rt_timer_start': ../rt-thread/src/timer.c:516:9: warning: implicit declaration of function 'rt_sched_thread_timer_start' [-Wimplicit-function-declaration] rt_sched_thread_timer_start(thread); ^ 然后找到了这个issues：https://github.com/RT-Thread/rt-thread/issues/9536 可是我把cmake.py内容复制过来之后，还是同样的问题，没有任何改变，于是我在src文件夹的sconscript文件加入了print打印语句，但看不到任何打印，继而又试了env.Print()什么的，一样看不到打印内容。于是我直接把sconscript文件删掉，又把SConstruct删掉，最后重新构建，还是一样没有任何区别（修改过多处源文件结果都一样）最后我不禁怀疑，其实studio使用的就是cmake。是这样吗？ 0 本主题由 Harmony技术专家于 2025-10-10 17:24 审核通过
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答案对人有帮助，有参考价值 0 RT-Thread Studio 的构建工具取决于工程类型和配置：默认构建系统： RT-Thread Studio 主要使用 Scons 作为构建工具。Scons 是 RT-Thread 官方推荐的构建系统，用于管理内核、组件和库的编译过程。创建基于开发板/芯片的标准工程时，Studio 会自动生成 Scons 脚本（`SConstruct` 和 `SConscript` 文件）。 CMake 的使用：部分特殊工程（如某些第三方库或适配其他框架的项目）可能使用 CMake，但非 RT-Thread 内核工程的主流选择。标准 RT-Thread 工程优先用 Scons。您的警告问题分析：您遇到的 `_RT_KERNEL_SOURCE` 未定义警告，是因为该宏用于标识内核源码编译（区分用户态/内核态）。解决方法如下：步骤 1：全局定义宏在 RT-Thread Studio 中配置预定义宏：右键工程 → Properties → C/C++ Build → Settings。选择 Tool Settings → MCU GCC Compiler → Preprocessor。在 Defined Symbols (-D) 中添加 `_RT_KERNEL_SOURCE`。步骤 2：检查 rtconfig.h 确保 `rtconfig.h`（工程配置头文件）中有以下定义： `#define RT_USING_USERMAIN // 若使用组件初始化特性需启用` 构建流程说明：您日志中的 `arm-none-eabi-gcc ...` 命令是 Scons 调用的底层编译步骤。Scons 负责解析依赖、生成编译命令（GCC）并链接，最终输出固件。总结建议：构建工具：RT-Thread Studio 标准工程使用 Scons。修复警告：按上述步骤在工程属性中添加 `_RT_KERNEL_SOURCE` 宏定义，确保内核函数正确编译。完成配置后重新构建工程，警告应被消除。如问题依旧，可检查是否遗漏了 RT-Thread 的配置选项（如 `RT_USING_USERMAIN`）。

2025-10-20 17:04:21 评论举报 h1654155275.5741