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authorUlrich Drepper <drepper@redhat.com>2004-06-07 17:58:24 +0000
committerUlrich Drepper <drepper@redhat.com>2004-06-07 17:58:24 +0000
commit34dd1fb34623213b65f36fd253736a0b8a754ed5 (patch)
treeb7cf0eb5626d6178ff6ccde1d03b251b44090f1b /nptl/sysdeps/unix/sysv/linux/s390
parentc889f2cd0e59f50e347f8cf421e4c9678a8f1f78 (diff)
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(lll_futex_requeue): Pass val argument as 6th system call argument in %r7.
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/s390')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h9
1 files changed, 2 insertions, 7 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
index 60679cca86..9549cff64e 100644
--- a/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/s390/lowlevellock.h
@@ -84,9 +84,6 @@
/* Returns non-zero if error happened, zero if success. */
-#if 0
-/* FIXME: s390 only supports up to 5 argument syscalls. Once FUTEX_CMP_REQUEUE
- kernel interface for s390 is finalized, adjust this. */
#define lll_futex_requeue(futex, nr_wake, nr_move, mutex, val) \
({ \
register unsigned long int __r2 asm ("2") = (unsigned long int) (futex); \
@@ -94,18 +91,16 @@
register unsigned long int __r4 asm ("4") = (long int) (nr_wake); \
register unsigned long int __r5 asm ("5") = (long int) (nr_move); \
register unsigned long int __r6 asm ("6") = (unsigned long int) (mutex); \
+ register unsigned long int __r7 asm ("7") = (int) (mutex); \
register unsigned long __result asm ("2"); \
\
__asm __volatile ("svc %b1" \
: "=d" (__result) \
: "i" (SYS_futex), "0" (__r2), "d" (__r3), \
- "d" (__r4), "d" (__r5), "d" (__r6) \
+ "d" (__r4), "d" (__r5), "d" (__r6), "d" (__r7) \
: "cc", "memory" ); \
__result > -4096UL; \
})
-#else
-#define lll_futex_requeue(futex, nr_wake, nr_move, mutex, val) 1
-#endif
#define lll_compare_and_swap(futex, oldval, newval, operation) \