diff options
| -rw-r--r-- | newlib/libc/sys/arm/syscalls.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/newlib/libc/sys/arm/syscalls.c b/newlib/libc/sys/arm/syscalls.c index e0cf0ac65..6e70467ea 100644 --- a/newlib/libc/sys/arm/syscalls.c +++ b/newlib/libc/sys/arm/syscalls.c @@ -76,7 +76,7 @@ static int monitor_stderr; typedef struct { int handle; - int pos; + off_t pos; } poslog; @@ -234,9 +234,16 @@ _swilseek (int file, off_t ptr, int dir) if (dir == SEEK_CUR) { + off_t pos; if (slot == MAX_OPEN_FILES) return -1; - ptr = openfiles[slot].pos + ptr; + pos = openfiles[slot].pos; + + /* Avoid SWI SEEK command when just querying file position. */ + if (ptr == 0) + return pos; + + ptr += pos; dir = SEEK_SET; } |