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MicroBlaze: negated errors in lowlevellock.h

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The macros in lowlevellock.h are returning positive errors, but the
users of the macros expect negative. This causes e.g. sem_wait to
sometimes return an error with errno set to -EWOULDBLOCK.

Signed-off-by: Kirk Meyer <kirk.meyer@sencore.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
This commit is contained in:
Kirk Meyer 2013-06-14 10:11:02 +10:00 committed by David Holsgrove
parent a58ad3f801
commit c396afdfa4
2 changed files with 9 additions and 4 deletions
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5
ports/ChangeLog.microblaze
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@ -1,3 +1,8 @@
2013-06-14 David Holsgrove <david.holsgrove@xilinx.com>
* sysdeps/unix/sysv/linux/microblaze/nptl/lowlevellock.h: Correct
return from macros.
2013-06-05 Ondřej Bílka <neleai@seznam.cz>
* sysdeps/microblaze/bits/atomic.h: Remove executable mode.

8
ports/sysdeps/unix/sysv/linux/microblaze/nptl/lowlevellock.h
View File

@ -87,7 +87,7 @@
__ret = INTERNAL_SYSCALL (futex, __err, 4, (long) (futexp), \
__lll_private_flag (FUTEX_WAIT, private), \
(val), (timespec)); \
INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
__ret; \
})
#define lll_futex_timed_wait_bitset(futexp, val, timespec, clockbit, private) \
@ -99,7 +99,7 @@
__lll_private_flag (__op, private), \
(val), (timespec), NULL /* Unused. */, \
FUTEX_BITSET_MATCH_ANY); \
INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
__ret; \
})
#define lll_futex_wake(futexp, nr, private) \
@ -109,7 +109,7 @@
__ret = INTERNAL_SYSCALL (futex, __err, 4, (long) (futexp), \
__lll_private_flag (FUTEX_WAKE, private), \
(nr), 0); \
INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
__ret; \
})
#define lll_robust_dead(futexv, private) \
@ -160,7 +160,7 @@
__ret = INTERNAL_SYSCALL (futex, __err, 5, (futexp), \
__lll_private_flag (__op, private), \
(val), (timespec), mutex); \
INTERNAL_SYSCALL_ERROR_P (__ret, __err) ? -__ret : __ret; \
__ret; \
})
#define lll_futex_cmp_requeue_pi(futexp, nr_wake, nr_move, mutex, val, priv) \