diff options
Diffstat (limited to 'sysdeps/unix/sysv')
| -rw-r--r-- | sysdeps/unix/sysv/linux/lowlevellock-futex.h | 9 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/lowlevellock.h | 6 |
2 files changed, 11 insertions, 4 deletions
diff --git a/sysdeps/unix/sysv/linux/lowlevellock-futex.h b/sysdeps/unix/sysv/linux/lowlevellock-futex.h index 59f6627bdb..40825f0306 100644 --- a/sysdeps/unix/sysv/linux/lowlevellock-futex.h +++ b/sysdeps/unix/sysv/linux/lowlevellock-futex.h @@ -54,8 +54,13 @@ #if IS_IN (libc) || IS_IN (rtld) /* In libc.so or ld.so all futexes are private. */ # ifdef __ASSUME_PRIVATE_FUTEX -# define __lll_private_flag(fl, private) \ - ((fl) | FUTEX_PRIVATE_FLAG) +# define __lll_private_flag(fl, private) \ + ({ \ + /* Prevent warnings in callers of this macro. */ \ + int __lll_private_flag_priv __attribute__ ((unused)); \ + __lll_private_flag_priv = (private); \ + ((fl) | FUTEX_PRIVATE_FLAG); \ + }) # else # define __lll_private_flag(fl, private) \ ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) diff --git a/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/sysdeps/unix/sysv/linux/sparc/lowlevellock.h index 7608c01d17..9fa73371fc 100644 --- a/sysdeps/unix/sysv/linux/sparc/lowlevellock.h +++ b/sysdeps/unix/sysv/linux/sparc/lowlevellock.h @@ -126,17 +126,19 @@ __lll_robust_timedlock (int *futex, const struct timespec *abstime, #define lll_unlock(lock, private) \ ((void) ({ \ int *__futex = &(lock); \ + int __private = (private); \ int __val = atomic_exchange_24_rel (__futex, 0); \ if (__glibc_unlikely (__val > 1)) \ - lll_futex_wake (__futex, 1, private); \ + lll_futex_wake (__futex, 1, __private); \ })) #define lll_robust_unlock(lock, private) \ ((void) ({ \ int *__futex = &(lock); \ + int __private = (private); \ int __val = atomic_exchange_rel (__futex, 0); \ if (__glibc_unlikely (__val & FUTEX_WAITERS)) \ - lll_futex_wake (__futex, 1, private); \ + lll_futex_wake (__futex, 1, __private); \ })) #define lll_islocked(futex) \ |