diff options
| author | Chris Metcalf <cmetcalf@tilera.com> | 2013-02-28 16:51:56 -0500 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-02-28 18:07:33 -0500 |
| commit | fd6cdc6da490616f4d381f4d44f03d61f64da2ba (patch) | |
| tree | 9ae7c22104acc44fe49b0a6b9b6f434aae0a6398 /ports | |
| parent | c7a8ba94040820cd324e02babc2d340d395138fc (diff) | |
| download | glibc-fd6cdc6da490616f4d381f4d44f03d61f64da2ba.tar.gz | |
tile: Add priority inheritance futex support
Diffstat (limited to 'ports')
| -rw-r--r-- | ports/ChangeLog.tile | 9 | ||||
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h | 28 |
2 files changed, 37 insertions, 0 deletions
diff --git a/ports/ChangeLog.tile b/ports/ChangeLog.tile index a473b30847..6184bf6a0b 100644 --- a/ports/ChangeLog.tile +++ b/ports/ChangeLog.tile @@ -1,3 +1,12 @@ +2013-02-28 Chris Metcalf <cmetcalf@tilera.com> + + * sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h + (FUTEX_WAIT_REQUEUE_PI): Define. + (FUTEX_CMP_REQUEUE_PI): Likewise. + (lll_futex_wait_requeue_pi): Likewise. + (lll_futex_timed_wait_requeue_pi): Likewise. + (lll_futex_cmp_requeue_pi): Likewise. + 2013-02-18 Siddhesh Poyarekar <siddhesh@redhat.com> * sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/nptl/libc.abilist: diff --git a/ports/sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h b/ports/sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h index e6f5d1905e..a9822ec960 100644 --- a/ports/sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h +++ b/ports/sysdeps/unix/sysv/linux/tile/nptl/lowlevellock.h @@ -38,6 +38,8 @@ #define FUTEX_TRYLOCK_PI 8 #define FUTEX_WAIT_BITSET 9 #define FUTEX_WAKE_BITSET 10 +#define FUTEX_WAIT_REQUEUE_PI 11 +#define FUTEX_CMP_REQUEUE_PI 12 #define FUTEX_PRIVATE_FLAG 128 #define FUTEX_CLOCK_REALTIME 256 @@ -139,7 +141,33 @@ INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ }) +/* Priority Inheritance support. */ +#define lll_futex_wait_requeue_pi(futexp, val, mutex, private) \ + lll_futex_timed_wait_requeue_pi (futexp, val, NULL, 0, mutex, private) +#define lll_futex_timed_wait_requeue_pi(futexp, val, timespec, clockbit, \ + mutex, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + int __op = FUTEX_WAIT_REQUEUE_PI | clockbit; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 5, (futexp), \ + __lll_private_flag (__op, private), \ + (val), (timespec), mutex); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) + +#define lll_futex_cmp_requeue_pi(futexp, nr_wake, nr_move, mutex, val, priv) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \ + __lll_private_flag (FUTEX_CMP_REQUEUE_PI, priv),\ + (nr_wake), (nr_move), (mutex), (val)); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) static inline int __attribute__ ((always_inline)) |