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Diffstat (limited to 'libgloss/spu/mremap_eaddr.c')
-rw-r--r-- | libgloss/spu/mremap_eaddr.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/libgloss/spu/mremap_eaddr.c b/libgloss/spu/mremap_eaddr.c new file mode 100644 index 000000000..df0ea2fcf --- /dev/null +++ b/libgloss/spu/mremap_eaddr.c @@ -0,0 +1,61 @@ +/* +(C) Copyright IBM Corp. 2007 + +All rights reserved. + +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 IBM 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 OWNER 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/mman.h> +#include "jsre.h" + +typedef struct +{ + unsigned long long old_addr; + unsigned int pad0[2]; + unsigned int old_size; + unsigned int pad1[3]; + unsigned int new_size; + unsigned int pad2[3]; + unsigned int flags; + unsigned int pad3[3]; +} syscall_mremap_t; + +unsigned long long mremap_eaddr(unsigned long long old_addr, size_t old_size, + size_t new_size, int flags) +{ + syscall_mremap_t sys; + + sys.old_addr = old_addr; + sys.old_size = (unsigned int) old_size; + sys.new_size = (unsigned int) new_size; + sys.flags = (unsigned int) flags; + __send_to_ppe (JSRE_POSIX1_SIGNALCODE, JSRE_MREMAP, &sys); + /* + * Extract 64 bit result from the result stored in sys. + */ + return *(unsigned long long *) (&sys); +} |