aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>2006-03-01 20:05:53 +0000
committerRoland McGrath <roland@gnu.org>2006-03-01 20:05:53 +0000
commitc4a4875d0fe42612280c62130b25d01a8d76fea8 (patch)
treefe1f0782d1b960f139048340ce354422052f8eb8
parent996f5e601e84cfabe27d829e523e07c2ceffdd2e (diff)
downloadglibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar
glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar.gz
glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.tar.bz2
glibc-c4a4875d0fe42612280c62130b25d01a8d76fea8.zip
* sysdeps/sparc/sparc32/fpu/libm-test-ulps: Update.
* sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept): Use inline asm to make sure the compiler doesn't optimize insns out.
-rw-r--r--ChangeLog4
-rw-r--r--nptl/ChangeLog8
-rw-r--r--nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h58
-rw-r--r--sysdeps/sparc/fpu/fraiseexcpt.c34
-rw-r--r--sysdeps/sparc/sparc32/fpu/libm-test-ulps9
5 files changed, 104 insertions, 9 deletions
diff --git a/ChangeLog b/ChangeLog
index 66dfc4ecce..067f551cee 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
2006-03-01 Jakub Jelinek <jakub@redhat.com>
+ * sysdeps/sparc/sparc32/fpu/libm-test-ulps: Update.
+ * sysdeps/sparc/fpu/fraiseexcpt.c (__feraiseexcept):
+ Use inline asm to make sure the compiler doesn't optimize insns out.
+
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h
(DECLARGS_6): Fix a typo.
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 8c761fdd90..84d9b71a7c 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,11 @@
+2006-03-01 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/sparc/lowlevellock.h (lll_robust_mutex_dead,
+ lll_robust_mutex_trylock, lll_robust_mutex_lock,
+ lll_robust_mutex_cond_lock, lll_robust_mutex_timedlock,
+ lll_robust_mutex_unlock): Define.
+ (__lll_robust_lock_wait, __lll_robust_timedlock_wait): New prototypes.
+
2006-02-28 H.J. Lu <hongjiu.lu@intel.com>
* sysdeps/unix/sysv/linux/ia64/clone2.S: Include <clone2.S>
diff --git a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
index ad82aa3ea4..77eefc546c 100644
--- a/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
+++ b/nptl/sysdeps/unix/sysv/linux/sparc/lowlevellock.h
@@ -78,6 +78,15 @@
INTERNAL_SYSCALL_ERROR_P (__ret, __err); \
})
+#define lll_robust_mutex_dead(futexv) \
+ do \
+ { \
+ int *__futexp = &(futexv); \
+ atomic_or (__futexp, FUTEX_OWNER_DIED); \
+ lll_futex_wake (__futexp, 1); \
+ } \
+ while (0)
+
/* Returns non-zero if error happened, zero if success. */
#ifdef __sparc32_atomic_do_lock
/* Avoid FUTEX_WAKE_OP if supporting pre-v9 CPUs. */
@@ -112,9 +121,18 @@ __lll_mutex_cond_trylock (int *futex)
}
#define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex))
+static inline int
+__attribute__ ((always_inline))
+__lll_robust_mutex_trylock (int *futex, int id)
+{
+ return atomic_compare_and_exchange_val_acq (futex, id, 0) != 0;
+}
+#define lll_robust_mutex_trylock(futex, id) \
+ __lll_robust_mutex_trylock (&(futex), id)
+
extern void __lll_lock_wait (int *futex) attribute_hidden;
-
+extern int __lll_robust_lock_wait (int *futex) attribute_hidden;
static inline void
__attribute__ ((always_inline))
@@ -127,6 +145,17 @@ __lll_mutex_lock (int *futex)
}
#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex))
+static inline int
+__attribute__ ((always_inline))
+__lll_robust_mutex_lock (int *futex, int id)
+{
+ int result = 0;
+ if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0)
+ result = __lll_robust_lock_wait (futex);
+ return result;
+}
+#define lll_robust_mutex_lock(futex, id) \
+ __lll_robust_mutex_lock (&(futex), id)
static inline void
__attribute__ ((always_inline))
@@ -139,10 +168,14 @@ __lll_mutex_cond_lock (int *futex)
}
#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex))
+#define lll_robust_mutex_cond_lock(futex, id) \
+ __lll_robust_mutex_lock (&(futex), (id) | FUTEX_WAITERS)
+
extern int __lll_timedlock_wait (int *futex, const struct timespec *)
attribute_hidden;
-
+extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *)
+ attribute_hidden;
static inline int
__attribute__ ((always_inline))
@@ -158,6 +191,19 @@ __lll_mutex_timedlock (int *futex, const struct timespec *abstime)
#define lll_mutex_timedlock(futex, abstime) \
__lll_mutex_timedlock (&(futex), abstime)
+static inline int
+__attribute__ ((always_inline))
+__lll_robust_mutex_timedlock (int *futex, const struct timespec *abstime,
+ int id)
+{
+ int result = 0;
+ if (atomic_compare_and_exchange_bool_acq (futex, id, 0) != 0)
+ result = __lll_robust_timedlock_wait (futex, abstime);
+ return result;
+}
+#define lll_robust_mutex_timedlock(futex, abstime, id) \
+ __lll_robust_mutex_timedlock (&(futex), abstime, id)
+
#define lll_mutex_unlock(lock) \
((void) ({ \
int *__futex = &(lock); \
@@ -166,6 +212,14 @@ __lll_mutex_timedlock (int *futex, const struct timespec *abstime)
lll_futex_wake (__futex, 1); \
}))
+#define lll_robust_mutex_unlock(lock) \
+ ((void) ({ \
+ int *__futex = &(lock); \
+ int __val = atomic_exchange_rel (__futex, 0); \
+ if (__builtin_expect (__val & FUTEX_WAITERS, 0)) \
+ lll_futex_wake (__futex, 1); \
+ }))
+
#define lll_mutex_unlock_force(lock) \
((void) ({ \
int *__futex = &(lock); \
diff --git a/sysdeps/sparc/fpu/fraiseexcpt.c b/sysdeps/sparc/fpu/fraiseexcpt.c
index 0d45ec82d2..cbb8be80ec 100644
--- a/sysdeps/sparc/fpu/fraiseexcpt.c
+++ b/sysdeps/sparc/fpu/fraiseexcpt.c
@@ -25,12 +25,12 @@
int
__feraiseexcept (int excepts)
{
- static volatile double sink;
static const struct {
double zero, one, max, min, sixteen, pi;
} c = {
0.0, 1.0, DBL_MAX, DBL_MIN, 16.0, M_PI
};
+ double d;
/* Raise exceptions represented by EXPECTS. But we must raise only
one signal at a time. It is important the if the overflow/underflow
@@ -39,24 +39,44 @@ __feraiseexcept (int excepts)
/* First: invalid exception. */
if ((FE_INVALID & excepts) != 0)
- /* One example of a invalid operation is 0/0. */
- sink = c.zero / c.zero;
+ {
+ /* One example of a invalid operation is 0/0. */
+ __asm ("" : "=e" (d) : "0" (c.zero));
+ d /= c.zero;
+ __asm __volatile ("" : : "e" (d));
+ }
/* Next: division by zero. */
if ((FE_DIVBYZERO & excepts) != 0)
- sink = c.one / c.zero;
+ {
+ __asm ("" : "=e" (d) : "0" (c.one));
+ d /= c.zero;
+ __asm __volatile ("" : : "e" (d));
+ }
/* Next: overflow. */
if ((FE_OVERFLOW & excepts) != 0)
- sink = c.max * c.max;
+ {
+ __asm ("" : "=e" (d) : "0" (c.max));
+ d *= d;
+ __asm __volatile ("" : : "e" (d));
+ }
/* Next: underflow. */
if ((FE_UNDERFLOW & excepts) != 0)
- sink = c.min / c.sixteen;
+ {
+ __asm ("" : "=e" (d) : "0" (c.min));
+ d /= c.sixteen;
+ __asm __volatile ("" : : "e" (d));
+ }
/* Last: inexact. */
if ((FE_INEXACT & excepts) != 0)
- sink = c.one / c.pi;
+ {
+ __asm ("" : "=e" (d) : "0" (c.one));
+ d /= c.pi;
+ __asm __volatile ("" : : "e" (d));
+ }
/* Success. */
return 0;
diff --git a/sysdeps/sparc/sparc32/fpu/libm-test-ulps b/sysdeps/sparc/sparc32/fpu/libm-test-ulps
index 40d563971a..ccf53788a6 100644
--- a/sysdeps/sparc/sparc32/fpu/libm-test-ulps
+++ b/sysdeps/sparc/sparc32/fpu/libm-test-ulps
@@ -465,6 +465,11 @@ ifloat: 2
ildouble: 1
ldouble: 1
+# exp2
+Test "exp2 (10) == 1024":
+ildouble: 2
+ldouble: 2
+
# expm1
Test "expm1 (0.75) == 1.11700001661267466854536981983709561":
double: 1
@@ -1192,6 +1197,10 @@ ifloat: 2
ildouble: 1
ldouble: 1
+Function: "exp2":
+ildouble: 2
+ldouble: 2
+
Function: "expm1":
double: 1
float: 1