diff options
Diffstat (limited to 'libgloss/riscv/semihost-sys_fdtable.c')
| -rw-r--r-- | libgloss/riscv/semihost-sys_fdtable.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/libgloss/riscv/semihost-sys_fdtable.c b/libgloss/riscv/semihost-sys_fdtable.c index 152c92d15..d62e3f970 100644 --- a/libgloss/riscv/semihost-sys_fdtable.c +++ b/libgloss/riscv/semihost-sys_fdtable.c @@ -24,25 +24,26 @@ static struct fdentry fdtable[RISCV_MAX_OPEN_FILES]; void __attribute__ ((constructor)) init_semihosting () { - int handle; + int i; - for (int i=0; i<RISCV_MAX_OPEN_FILES; i++) + for (i=0; i<RISCV_MAX_OPEN_FILES; i++) fdtable[i].handle = -1; - /* Set up std streams. */ + /* Set up std streams. Note that the semihost _open() call returns an index + into the fdtable. */ /* stdin. */ - handle = _open (":tt", O_RDONLY); - fdtable[STDIN_FILENO].handle = handle; + i = _open (":tt", O_RDONLY); + fdtable[STDIN_FILENO].handle = fdtable[i].handle; fdtable[STDIN_FILENO].pos = 0; /* stdout. */ - handle = _open (":tt", O_WRONLY|O_CREAT|O_TRUNC); - fdtable[STDOUT_FILENO].handle = handle; + i = _open (":tt", O_WRONLY|O_CREAT|O_TRUNC); + fdtable[STDOUT_FILENO].handle = fdtable[i].handle; fdtable[STDOUT_FILENO].pos = 0; /* stderr. */ - handle = _open (":tt", O_WRONLY|O_CREAT|O_APPEND); - fdtable[STDERR_FILENO].handle = handle; + i = _open (":tt", O_WRONLY|O_CREAT|O_APPEND); + fdtable[STDERR_FILENO].handle = fdtable[i].handle; fdtable[STDERR_FILENO].pos = 0; } |