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2008-07-17 Ken Werner <ken.werner@de.ibm.com> 

* spu/syscalls.c: Check and set the errno value.
This commit is contained in:
Jeff Johnston 2008-07-17 19:04:26 +00:00
parent eb19b8f95a
commit 7f48e8a8b3
2 changed files with 13 additions and 1 deletions
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4
libgloss/ChangeLog
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@ -1,3 +1,7 @@
2008-07-17 Ken Werner <ken.werner@de.ibm.com>
* spu/syscalls.c: Check and set the errno value.
2008-06-17 Ken Werner <ken.werner@de.ibm.com>
* spu/Makefile.in: Add new file.

10
libgloss/spu/syscalls.c
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@ -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.