diff options
Diffstat (limited to 'libgloss/spu')
-rw-r--r-- | libgloss/spu/linux_syscalls.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/libgloss/spu/linux_syscalls.c b/libgloss/spu/linux_syscalls.c new file mode 100644 index 000000000..e8563ef26 --- /dev/null +++ b/libgloss/spu/linux_syscalls.c @@ -0,0 +1,62 @@ +/* +(C) Copyright IBM Corp. 2008 + +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. + +Author: Ken Werner <ken.werner@de.ibm.com> +*/ + +#include "sys/linux_syscalls.h" +#include <errno.h> + +int +__linux_syscall (struct spu_syscall_block *s) +{ + int ret; + __vector unsigned int stopfunc =3D { + 0x00002104, /* stop 0x2104 */ + (unsigned int) s, + 0x4020007f, /* nop */ + 0x35000000 /* bi $0 */ + }; + + void (*f) (void) =3D (void *) &stopfunc; + asm ("sync"); + + f (); + + if (s->nr_ret > -4096ull) + { + errno =3D -s->nr_ret; + ret =3D -1; + } + else + { + ret =3D s->nr_ret; + } + return ret; +} |