增加__attribute__((constructor))支持

mkrtos_user/lib/libc_backend/src/fs_backend.c

@@ -9,8 +9,10 @@
 #include <u_env.h>
 #include <sys/uio.h>
 #include <assert.h>
+#include <u_util.h>
 #include "fd_map.h"
 
+AUTO_CALL(101)
 void fs_backend_init(void)
 {
     assert(fd_map_alloc(0, 0, FD_TTY) >= 0);

mkrtos_user/lib/mlibc/src/env/__libc_start_main.c

@@ -79,9 +79,13 @@ __init_libc(char **envp, char *pn)
 static void libc_start_init(void)
 {
 	_init();
+	extern void *app_start_addr;
+    unsigned long start_addr = ((unsigned long)app_start_addr) & (~3UL);
+	
 	uintptr_t a = (uintptr_t)&__init_array_start;
-	for (; a < (uintptr_t)&__init_array_end; a += sizeof(void (*)()))
-		(*(void (**)(void))a)();
+	for (; a < (uintptr_t)&__init_array_end; a += sizeof(void (*)())) {
+		((void (*)(void))((uintptr_t)(*(void (**)(void))a) + start_addr | 0x1UL))();
+	}
 }
 
 weak_alias(libc_start_init, __libc_start_init);

mkrtos_user/lib/sys/inc/u_util.h

@@ -11,4 +11,5 @@
 #define ROUND_UP(a, b) ROUND(a, b)                                 //!< a除b向上取整数
 #define ROUND_DOWN(a, b) ((a) / (b))                               //!< a/b向下取整
 
-#define ATTR_ALIGN(a) __attribute__((aligned(a)))
+#define ATTR_ALIGN(a) __attribute__((aligned(a)))
+#define AUTO_CALL(prio) __attribute__((constructor(prio)))

mkrtos_user/lib/sys_util/src/u_drv.c

@@ -5,6 +5,7 @@
 #include "u_mm.h"
 #include "u_sleep.h"
 
+AUTO_CALL(101)
 int u_drv_init(void)
 {
     msg_tag_t tag;

mkrtos_user/server/app/drv/drv.c

@@ -35,7 +35,6 @@ void music2_send_bytes(u8 *bytes, int len)
 
 void drv_init(void)
 {
-    u_drv_init();
     led_init();
     relay_init();
     IIC_Init();

mkrtos_user/server/drv/misc/main.c

@@ -13,7 +13,6 @@ int main(int args, char *argv[])
     obj_handler_t ipc_hd;
     int ret;
 
-    u_drv_init();
     ret = rpc_creaite_bind_ipc(THREAD_MAIN, NULL, &ipc_hd);
     assert(ret >= 0);
     ns_register("/dev", ipc_hd);

mkrtos_user/server/drv/rtthread_drv/CMakeLists.txt

@@ -40,11 +40,11 @@ target_link_libraries(
     rtthread_drv.elf
     PUBLIC
     start
+    muslc
+    --whole-archive
     sys
     sys_util
     sys_svr
-    muslc
-    --whole-archive
     src
     drivers
     stm32f103_onenet_nbiot

mkrtos_user/server/drv/rtthread_drv/src/main.c

@@ -11,9 +11,7 @@ extern void rt_hw_board_init(void);
 extern int dfs_init(void);
 int main(void)
 {
-    fs_backend_init();
     printf("test\n");
-    u_drv_init();
     /* init board */
     rt_hw_board_init();
     dfs_init();

mkrtos_user/server/fs/fatfs/main.c

@@ -14,7 +14,6 @@ static MKFS_PARM defopt = {FM_ANY, 0, 0, 0};
 
 int main(int args, char *argv[])
 {
-    u_drv_init();
     obj_handler_t ipc_hd;
     int ret = rpc_creaite_bind_ipc(THREAD_MAIN, NULL, &ipc_hd);
     assert(ret >= 0);