50 lines
2.4 KiB
C
50 lines
2.4 KiB
C
/* EPIPHANY implementation of _read ()
|
|
|
|
Copyright (c) 2011, 2012 Adapteva, Inc.
|
|
All rights reserved.
|
|
|
|
Contributor Jeremy Bennett <jeremy.bennett@embecosm.com> for Adapteva Inc
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
* Redistributions of source code must retain the above copyright notice,
|
|
this list of conditions and the following disclaimer.
|
|
* Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
* Neither the name of Adapteva nor the names of its contributors may be
|
|
used to endorse or promote products derived from this software without
|
|
specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
POSSIBILITY OF SUCH DAMAGE. */
|
|
|
|
#include <sys/types.h>
|
|
#include "epiphany-syscalls.h"
|
|
#include "syscall.h"
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
/*!Read a file
|
|
|
|
@param[in] fildes The descriptor of the file from which to read
|
|
@param[in] ptr Buffer for the read data
|
|
@param[in] len Maximum number of bytes to read
|
|
|
|
@return Number of bytes read on success, -1 on failure with an error code
|
|
in errno. */
|
|
/* ------------------------------------------------------------------------- */
|
|
ssize_t __attribute__ ((section ("libgloss_epiphany")))
|
|
_read (int fildes, void *ptr, size_t len)
|
|
{
|
|
return asm_read (fildes, ptr, len);
|
|
} /* _read () */
|