diff options
Diffstat (limited to 'libgloss/spu')
| -rw-r--r-- | libgloss/spu/syscalls.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/libgloss/spu/syscalls.c b/libgloss/spu/syscalls.c index f2f292853..7e85fa502 100644 --- a/libgloss/spu/syscalls.c +++ b/libgloss/spu/syscalls.c @@ -29,6 +29,7 @@ POSSIBILITY OF SUCH DAMAGE. Author: Andreas Neukoetter (ti95neuk@de.ibm.com) */ +#include <spu_intrinsics.h> #include <errno.h> #include "jsre.h" @@ -36,6 +37,7 @@ int __send_to_ppe (unsigned int signalcode, unsigned int opcode, void *data) { + int newerrno; unsigned int combined = ( ( opcode<<24 )&0xff000000 ) | ( ( unsigned int )data & 0x00ffffff ); __vector unsigned int stopfunc = { @@ -48,7 +50,13 @@ __send_to_ppe (unsigned int signalcode, unsigned int opcode, void *data) void (*f) (void) = (void *) &stopfunc; asm ("sync"); f (); - errno = ((unsigned int *) data)[3]; + newerrno = ((unsigned int *) data)[3]; + /* + * Note: branchless code to conditionally set errno using + * spu_cmpeq and spu_sel used more space than the following. + */ + if (newerrno) + errno = newerrno; /* * Return the rc code stored in slot 0. |