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Diffstat (limited to 'libgloss/csky/io-read.c')
-rw-r--r-- | libgloss/csky/io-read.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/libgloss/csky/io-read.c b/libgloss/csky/io-read.c new file mode 100644 index 0000000..1995c4b --- /dev/null +++ b/libgloss/csky/io-read.c @@ -0,0 +1,48 @@ +/* + * semi-read.c -- + * + * Copyright (c) 2006 CodeSourcery Inc + * + * The authors hereby grant permission to use, copy, modify, distribute, + * and license this software and its documentation for any purpose, provided + * that existing copyright notices are retained in all copies and that this + * notice is included verbatim in any distributions. No written agreement, + * license, or royalty fee is required for any of the authorized uses. + * Modifications to this software may be copyrighted by their authors + * and need not follow the licensing terms described here, provided that + * the new terms are clearly indicated on the first page of each file where + * they apply. + */ + +#include <unistd.h> +#include <errno.h> +#define IO read +#include "io.h" + +/* + * read -- read from a file descriptor + * input parameters: + * 0 : file descriptor + * 1 : buf ptr + * 2 : count + * output parameters: + * 0 : errno + * result : r0 + */ + +ssize_t read (int fd, void *buf, size_t count) +{ +#if HOSTED + gdb_parambuf_t parameters; + int ret; + parameters[0] = (uint32_t) fd; + parameters[1] = (uint32_t) buf; + parameters[2] = (uint32_t) count; + ret = __hosted (HOSTED_READ, parameters); + errno = __hosted_from_gdb_errno (parameters[0]); + return ret; +#else + errno = ENOSYS; + return -1; +#endif +} |