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Diffstat (limited to 'libgloss/epiphany/lseek.c')
| -rw-r--r-- | libgloss/epiphany/lseek.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/libgloss/epiphany/lseek.c b/libgloss/epiphany/lseek.c new file mode 100644 index 000000000..64ffcdd28 --- /dev/null +++ b/libgloss/epiphany/lseek.c @@ -0,0 +1,47 @@ +/* EPIPHANY implementation of _lseek () + + Copyright (c) 2011, 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 <syscall.h> +#include <sys/types.h> + +/* ------------------------------------------------------------------------- */ +/*!Set a position in a file + + @param[in] fildes The file descriptor on which to seek + @param[in] offset The desired offset + @param[in] whence Where the offset is measured from + + @return 0 on success, -1 on failure with an error code in errno. */ +/* ------------------------------------------------------------------------- */ +off_t __attribute__ ((section ("libgloss_epiphany"))) +_lseek (int fildes, off_t offset, int whence) +{ + return asm_syscall (fildes, offset, whence, SYS_lseek); +} /* _lseek () */ |