[libc][syscalls]将在libc初始化之前调用printf的行为下调为警告级别

1 files changed, 4 insertions, 4 deletions

diff --git a/components/libc/compilers/armlibc/syscalls.c b/components/libc/compilers/armlibc/syscalls.c
index a3ba57a280..7d8ec2e8b4 100644
--- a/components/libc/compilers/armlibc/syscalls.c
+++ b/components/libc/compilers/armlibc/syscalls.c
@@ -152,8 +152,8 @@ int _sys_read(FILEHANDLE fh, unsigned char *buf, unsigned len, int mode)
 #ifdef RT_USING_POSIX
         if (libc_stdio_get_console() < 0)
         {
-            LOG_E("invoke standard output before initializing libc");
-            return -1;
+            LOG_W("Do not invoke standard output before initializing libc");
+            return 0;
         }
         size = read(STDIN_FILENO, buf, len);
         return len - size;
@@ -197,8 +197,8 @@ int _sys_write(FILEHANDLE fh, const unsigned char *buf, unsigned len, int mode)
 #ifdef RT_USING_POSIX
         if (libc_stdio_get_console() < 0)
         {
-            LOG_E("invoke standard input before initializing libc");
-            return -1;
+            LOG_W("Do not invoke standard input before initializing libc");
+            return 0;
         }
         size = write(STDOUT_FILENO, buf, len);
         return len - size;