[libc][syscall]移除libc_stdio_read/write函数，优化syscall

1 files changed, 1 insertions, 25 deletions

diff --git a/components/libc/compilers/armlibc/stdio.c b/components/libc/compilers/armlibc/stdio.c
index c786c78aa5..7dd9dbfe3f 100644
--- a/components/libc/compilers/armlibc/stdio.c
+++ b/components/libc/compilers/armlibc/stdio.c
@@ -21,6 +21,7 @@
 #define STDIO_DEVICE_NAME_MAX   32
 
 static int std_fd = -1;
+
 int libc_stdio_set_console(const char* device_name, int mode)
 {
     int fd;
@@ -47,29 +48,4 @@ int libc_stdio_get_console(void)
     return std_fd;
 }
 
-int libc_stdio_read(void *buffer, size_t size)
-{
-    if (std_fd >= 0)
-    {
-        return read(std_fd, buffer, size);
-    }
-    else
-    {
-        rt_kprintf("Illegal stdio input!\n");
-        return 0;
-    }
-}
-
-int libc_stdio_write(const void *buffer, size_t size)
-{
-    if (std_fd >= 0)
-    {
-        return write(std_fd, buffer, size);
-    }
-    else
-    {
-        rt_kprintf("Illegal stdio output!\n");
-        return size;
-    }
-}
 #endif