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| author | Jeff Johnston <jjohnstn@redhat.com> | 2008-07-17 19:04:26 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2008-07-17 19:04:26 +0000 |
| commit | 7f48e8a8b3e241579f57d0b5b91db1449ba96fe8 (patch) | |
| tree | 597eaa648ce516208d757a71ca261130fff48bf9 /libgloss | |
| parent | eb19b8f95a6a22ade6911ac98d1a76313ec99f53 (diff) | |
| download | newlib-7f48e8a8b3e241579f57d0b5b91db1449ba96fe8.zip newlib-7f48e8a8b3e241579f57d0b5b91db1449ba96fe8.tar.gz newlib-7f48e8a8b3e241579f57d0b5b91db1449ba96fe8.tar.bz2 | |
2008-07-17 Ken Werner <ken.werner@de.ibm.com>
* spu/syscalls.c: Check and set the errno value.
Diffstat (limited to 'libgloss')
| -rw-r--r-- | libgloss/ChangeLog | 4 | ||||
| -rw-r--r-- | libgloss/spu/syscalls.c | 10 |
2 files changed, 13 insertions, 1 deletions
diff --git a/libgloss/ChangeLog b/libgloss/ChangeLog index 255f7a4..8811889 100644 --- a/libgloss/ChangeLog +++ b/libgloss/ChangeLog @@ -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. diff --git a/libgloss/spu/syscalls.c b/libgloss/spu/syscalls.c index f2f2928..7e85fa5 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. |