[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/newlib/syscalls.c b/components/libc/compilers/newlib/syscalls.c
index 1cb7475fe1..4c1dc82ad3 100644
--- a/components/libc/compilers/newlib/syscalls.c
+++ b/components/libc/compilers/newlib/syscalls.c
@@ -227,8 +227,8 @@ _ssize_t _read_r(struct _reent *ptr, int fd, void *buf, size_t nbytes)
     _ssize_t rc;
     if (libc_stdio_get_console() < 0 && fd == STDIN_FILENO)
     {
-        LOG_E("invoke standard input before initializing libc");
-        return -1;
+        LOG_W("Do not invoke standard input before initializing libc");
+        return 0;
     }
     rc = read(fd, buf, nbytes);
     return rc;
@@ -303,8 +303,8 @@ _ssize_t _write_r(struct _reent *ptr, int fd, const void *buf, size_t nbytes)
     _ssize_t rc;
     if (libc_stdio_get_console() < 0 && fd == STDOUT_FILENO)
     {
-        LOG_E("invoke standard output before initializing libc");
-        return -1;
+        LOG_W("Do not invoke standard output before initializing libc");
+        return 0;
     }
     rc = write(fd, buf, nbytes);
     return rc;