| 1 | /* EPIPHANY implementation of _read () |
|---|
| 2 | |
|---|
| 3 | Copyright (c) 2011, 2012 Adapteva, Inc. |
|---|
| 4 | All rights reserved. |
|---|
| 5 | |
|---|
| 6 | Contributor Jeremy Bennett <jeremy.bennett@embecosm.com> for Adapteva Inc |
|---|
| 7 | |
|---|
| 8 | Redistribution and use in source and binary forms, with or without |
|---|
| 9 | modification, are permitted provided that the following conditions are met: |
|---|
| 10 | * Redistributions of source code must retain the above copyright notice, |
|---|
| 11 | this list of conditions and the following disclaimer. |
|---|
| 12 | * Redistributions in binary form must reproduce the above copyright |
|---|
| 13 | notice, this list of conditions and the following disclaimer in the |
|---|
| 14 | documentation and/or other materials provided with the distribution. |
|---|
| 15 | * Neither the name of Adapteva nor the names of its contributors may be |
|---|
| 16 | used to endorse or promote products derived from this software without |
|---|
| 17 | specific prior written permission. |
|---|
| 18 | |
|---|
| 19 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
|---|
| 20 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|---|
| 21 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|---|
| 22 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
|---|
| 23 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
|---|
| 24 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
|---|
| 25 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
|---|
| 26 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
|---|
| 27 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
|---|
| 28 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
|---|
| 29 | POSSIBILITY OF SUCH DAMAGE. */ |
|---|
| 30 | |
|---|
| 31 | #include <sys/types.h> |
|---|
| 32 | #include "epiphany-syscalls.h" |
|---|
| 33 | #include "syscall.h" |
|---|
| 34 | |
|---|
| 35 | /* ------------------------------------------------------------------------- */ |
|---|
| 36 | /*!Read a file |
|---|
| 37 | |
|---|
| 38 | @param[in] fildes The descriptor of the file from which to read |
|---|
| 39 | @param[in] ptr Buffer for the read data |
|---|
| 40 | @param[in] len Maximum number of bytes to read |
|---|
| 41 | |
|---|
| 42 | @return Number of bytes read on success, -1 on failure with an error code |
|---|
| 43 | in errno. */ |
|---|
| 44 | /* ------------------------------------------------------------------------- */ |
|---|
| 45 | ssize_t __attribute__ ((section ("libgloss_epiphany"))) |
|---|
| 46 | _read (int fildes, void *ptr, size_t len) |
|---|
| 47 | { |
|---|
| 48 | return asm_read (fildes, ptr, len); |
|---|
| 49 | } /* _read () */ |
|---|
