[libc] fix the conflict warning of read and write functions

1 files changed, 8 insertions, 0 deletions

diff --git a/components/dfs/src/dfs_posix.c b/components/dfs/src/dfs_posix.c
index be3b039818..ed3fdb2eeb 100644
--- a/components/dfs/src/dfs_posix.c
+++ b/components/dfs/src/dfs_posix.c
@@ -110,7 +110,11 @@ RTM_EXPORT(close);
  * @return the actual read data buffer length. If the returned value is 0, it
  * may be reach the end of file, please check errno.
  */
+#ifdef _READ_WRITE_RETURN_TYPE
+_READ_WRITE_RETURN_TYPE read(int fd, void *buf, size_t len) /* some gcc tool chains will use different data structure */
+#else
 ssize_t read(int fd, void *buf, size_t len)
+#endif
 {
     int result;
     struct dfs_fd *d;
@@ -150,7 +154,11 @@ RTM_EXPORT(read);
  *
  * @return the actual written data buffer length.
  */
+#ifdef _READ_WRITE_RETURN_TYPE
+_READ_WRITE_RETURN_TYPE write(int fd, const void *buf, size_t len) /* some gcc tool chains will use different data structure */
+#else
 ssize_t write(int fd, const void *buf, size_t len)
+#endif
 {
     int result;
     struct dfs_fd *d;