| 1 | /* EPIPHANY implementation of _lseek () |
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| 2 | |
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| 3 | Copyright (c) 2011, Adapteva, Inc. |
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| 4 | All rights reserved. |
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| 5 | |
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| 6 | Contributor Jeremy Bennett <jeremy.bennett@embecosm.com> for Adapteva Inc |
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| 7 | |
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| 8 | Redistribution and use in source and binary forms, with or without |
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| 9 | modification, are permitted provided that the following conditions are met: |
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| 10 | * Redistributions of source code must retain the above copyright notice, |
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| 11 | this list of conditions and the following disclaimer. |
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| 12 | * Redistributions in binary form must reproduce the above copyright |
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| 13 | notice, this list of conditions and the following disclaimer in the |
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| 14 | documentation and/or other materials provided with the distribution. |
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| 15 | * Neither the name of Adapteva nor the names of its contributors may be |
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| 16 | used to endorse or promote products derived from this software without |
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| 17 | specific prior written permission. |
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| 18 | |
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| 19 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 20 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 21 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 22 | ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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| 23 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 24 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 25 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 26 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 27 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 28 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 29 | POSSIBILITY OF SUCH DAMAGE. */ |
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| 30 | |
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| 31 | #include <syscall.h> |
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| 32 | #include <sys/types.h> |
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| 33 | |
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| 34 | /* ------------------------------------------------------------------------- */ |
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| 35 | /*!Set a position in a file |
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| 36 | |
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| 37 | @param[in] fildes The file descriptor on which to seek |
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| 38 | @param[in] offset The desired offset |
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| 39 | @param[in] whence Where the offset is measured from |
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| 40 | |
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| 41 | @return 0 on success, -1 on failure with an error code in errno. */ |
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| 42 | /* ------------------------------------------------------------------------- */ |
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| 43 | off_t __attribute__ ((section ("libgloss_epiphany"))) |
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| 44 | _lseek (int fildes, off_t offset, int whence) |
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| 45 | { |
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| 46 | return asm_syscall (fildes, offset, whence, SYS_lseek); |
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| 47 | } /* _lseek () */ |
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