fix: make QEMU-VExpress-A9 example compatible with newlib 12.x by handling removed __sdidinit

loremmoqi · loremmoqi · commit ae299c33462c · 2025-10-10T22:58:18.000+08:00
diff --git a/components/libc/posix/io/stdio/stdio.c b/components/libc/posix/io/stdio/stdio.c
@@ -104,9 +104,12 @@ int rt_posix_stdio_set_console(const char* device_name, int mode)
             _GLOBAL_REENT->_stderr = std_console;
         }
 
-#if (NEWLIB_VERSION_NUM < 30400U) || (NEWLIB_VERSION_NUM >= 40000U && NEWLIB_VERSION_NUM < 40300U)
-        _GLOBAL_REENT->__sdidinit = 1; /* __sdidinit is obselete */
+#if defined(_REENT_SMALL) || !defined(__sdidinit)
+    // newlib 新版本没有 __sdidinit
+#else
+    _GLOBAL_REENT->__sdidinit = 1;
 #endif
+
     }
 
     if (std_console)

Original file line number	Diff line number	Diff line change
`@@ -104,9 +104,12 @@ int rt_posix_stdio_set_console(const char* device_name, int mode)`
`104`	`104`	`_GLOBAL_REENT->_stderr = std_console;`
`105`	`105`	`}`
`106`	`106`
`107`		`-#if (NEWLIB_VERSION_NUM < 30400U) \|\| (NEWLIB_VERSION_NUM >= 40000U && NEWLIB_VERSION_NUM < 40300U)`
`108`		`- _GLOBAL_REENT->__sdidinit = 1; /* __sdidinit is obselete */`
	`107`	`+#if defined(_REENT_SMALL) \|\| !defined(__sdidinit)`
	`108`	`+ // newlib 新版本没有 __sdidinit`
	`109`	`+#else`
	`110`	`+ _GLOBAL_REENT->__sdidinit = 1;`
`109`	`111`	`#endif`
	`112`	`+`
`110`	`113`	`}`
`111`	`114`
`112`	`115`	`if (std_console)`