/*
* bdm-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 "bdm-semihost.h"
#include "bdm-gdb.h"
#include <unistd.h>
#include <errno.h>
* read -- read from a file descriptor
* input parameters:
* 0 : file descriptor
* 1 : buf ptr
* 2 : count
* output parameters:
* 0 : result
* 1 : errno
ssize_t read (int fd, void *buf, size_t count)
{
gdb_parambuf_t parameters;
parameters[0] = (uint32_t) fd;
parameters[1] = (uint32_t) buf;
parameters[2] = (uint32_t) count;
BDM_TRAP (BDM_READ, (uint32_t)parameters);
errno = convert_from_gdb_errno (parameters[1]);
return parameters[0];
}
