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-rw-r--r--arch/arm/bits/alltypes.h.in2
-rw-r--r--arch/i386/bits/alltypes.h.in2
-rw-r--r--arch/microblaze/bits/alltypes.h.in2
-rw-r--r--arch/mips/bits/alltypes.h.in2
-rw-r--r--arch/or1k/bits/alltypes.h.in2
-rw-r--r--arch/powerpc/bits/alltypes.h.in2
-rw-r--r--arch/sh/bits/alltypes.h.in2
-rw-r--r--arch/x32/bits/alltypes.h.in2
-rw-r--r--arch/x86_64/bits/alltypes.h.in2
-rw-r--r--src/internal/pthread_impl.h4
-rw-r--r--src/thread/pthread_mutex_trylock.c8
-rw-r--r--src/thread/pthread_mutex_unlock.c7
-rw-r--r--src/thread/pthread_mutexattr_setrobust.c10
13 files changed, 27 insertions, 20 deletions
diff --git a/arch/arm/bits/alltypes.h.in b/arch/arm/bits/alltypes.h.in
index bd23a6ae..0d750cc8 100644
--- a/arch/arm/bits/alltypes.h.in
+++ b/arch/arm/bits/alltypes.h.in
@@ -17,7 +17,7 @@ TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[6]; void *__p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/i386/bits/alltypes.h.in b/arch/i386/bits/alltypes.h.in
index efd2c077..502c8822 100644
--- a/arch/i386/bits/alltypes.h.in
+++ b/arch/i386/bits/alltypes.h.in
@@ -31,7 +31,7 @@ TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[6]; void *__p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/microblaze/bits/alltypes.h.in b/arch/microblaze/bits/alltypes.h.in
index 6bd79429..4657d14d 100644
--- a/arch/microblaze/bits/alltypes.h.in
+++ b/arch/microblaze/bits/alltypes.h.in
@@ -17,7 +17,7 @@ TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[6]; void *__p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/mips/bits/alltypes.h.in b/arch/mips/bits/alltypes.h.in
index 6bd79429..4657d14d 100644
--- a/arch/mips/bits/alltypes.h.in
+++ b/arch/mips/bits/alltypes.h.in
@@ -17,7 +17,7 @@ TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[6]; void *__p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/or1k/bits/alltypes.h.in b/arch/or1k/bits/alltypes.h.in
index bd23a6ae..0d750cc8 100644
--- a/arch/or1k/bits/alltypes.h.in
+++ b/arch/or1k/bits/alltypes.h.in
@@ -17,7 +17,7 @@ TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[6]; void *__p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/powerpc/bits/alltypes.h.in b/arch/powerpc/bits/alltypes.h.in
index e9d8dd8a..378124ca 100644
--- a/arch/powerpc/bits/alltypes.h.in
+++ b/arch/powerpc/bits/alltypes.h.in
@@ -17,7 +17,7 @@ TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[6]; void *__p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/sh/bits/alltypes.h.in b/arch/sh/bits/alltypes.h.in
index e9d8dd8a..378124ca 100644
--- a/arch/sh/bits/alltypes.h.in
+++ b/arch/sh/bits/alltypes.h.in
@@ -17,7 +17,7 @@ TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[6]; void *__p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/x32/bits/alltypes.h.in b/arch/x32/bits/alltypes.h.in
index b077fc93..8930efa3 100644
--- a/arch/x32/bits/alltypes.h.in
+++ b/arch/x32/bits/alltypes.h.in
@@ -22,7 +22,7 @@ TYPEDEF long long time_t;
 TYPEDEF long long suseconds_t;
 
 TYPEDEF struct { union { int __i[14]; unsigned long __s[7]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[10]; void *__p[5]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[10]; volatile void *volatile __p[5]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[6]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[14]; void *__p[7]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[8]; void *__p[4]; } __u; } pthread_barrier_t;
diff --git a/arch/x86_64/bits/alltypes.h.in b/arch/x86_64/bits/alltypes.h.in
index 277e9448..34b7d6ac 100644
--- a/arch/x86_64/bits/alltypes.h.in
+++ b/arch/x86_64/bits/alltypes.h.in
@@ -22,7 +22,7 @@ TYPEDEF long time_t;
 TYPEDEF long suseconds_t;
 
 TYPEDEF struct { union { int __i[14]; unsigned long __s[7]; } __u; } pthread_attr_t;
-TYPEDEF struct { union { int __i[10]; void *__p[5]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[10]; volatile void *volatile __p[5]; } __u; } pthread_mutex_t;
 TYPEDEF struct { union { int __i[12]; void *__p[6]; } __u; } pthread_cond_t;
 TYPEDEF struct { union { int __i[14]; void *__p[7]; } __u; } pthread_rwlock_t;
 TYPEDEF struct { union { int __i[8]; void *__p[4]; } __u; } pthread_barrier_t;
diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
index 826191c2..848ff668 100644
--- a/src/internal/pthread_impl.h
+++ b/src/internal/pthread_impl.h
@@ -33,9 +33,9 @@ struct pthread {
 	pthread_attr_t attr;
 	volatile int dead;
 	struct {
-		void **head;
+		volatile void *volatile head;
 		long off;
-		void *pending;
+		volatile void *volatile pending;
 	} robust_list;
 	int unblock_cancel;
 	int timer_id;
diff --git a/src/thread/pthread_mutex_trylock.c b/src/thread/pthread_mutex_trylock.c
index 8d256614..31587e1f 100644
--- a/src/thread/pthread_mutex_trylock.c
+++ b/src/thread/pthread_mutex_trylock.c
@@ -9,6 +9,7 @@ int __pthread_mutex_trylock_owner(pthread_mutex_t *m)
 
 	if (!self->robust_list.off) {
 		__syscall(SYS_set_robust_list, &self->robust_list, 3*sizeof(long));
+		self->robust_list.head = &self->robust_list.head;
 		self->robust_list.off = (char*)&m->_m_lock-(char *)&m->_m_next;
 	}
 
@@ -29,10 +30,11 @@ int __pthread_mutex_trylock_owner(pthread_mutex_t *m)
 		return EBUSY;
 	}
 
-	m->_m_next = self->robust_list.head;
+	volatile void *next = self->robust_list.head;
+	m->_m_next = next;
 	m->_m_prev = &self->robust_list.head;
-	if (self->robust_list.head)
-		self->robust_list.head[-1] = &m->_m_next;
+	if (next != &self->robust_list.head) *(volatile void *volatile *)
+		((char *)next - sizeof(void *)) = &m->_m_next;
 	self->robust_list.head = &m->_m_next;
 	self->robust_list.pending = 0;
 
diff --git a/src/thread/pthread_mutex_unlock.c b/src/thread/pthread_mutex_unlock.c
index 42837516..46761d9a 100644
--- a/src/thread/pthread_mutex_unlock.c
+++ b/src/thread/pthread_mutex_unlock.c
@@ -21,8 +21,11 @@ int pthread_mutex_unlock(pthread_mutex_t *m)
 			self->robust_list.pending = &m->_m_next;
 			__vm_lock_impl(+1);
 		}
-		*(void **)m->_m_prev = m->_m_next;
-		if (m->_m_next) ((void **)m->_m_next)[-1] = m->_m_prev;
+		volatile void *prev = m->_m_prev;
+		volatile void *next = m->_m_next;
+		*(volatile void *volatile *)prev = next;
+		if (next != &self->robust_list.head) *(volatile void *volatile *)
+			((char *)next - sizeof(void *)) = prev;
 	}
 	cont = a_swap(&m->_m_lock, (type & 8) ? 0x40000000 : 0);
 	if (type != PTHREAD_MUTEX_NORMAL && !priv) {
diff --git a/src/thread/pthread_mutexattr_setrobust.c b/src/thread/pthread_mutexattr_setrobust.c
index 8948cbaf..d0627889 100644
--- a/src/thread/pthread_mutexattr_setrobust.c
+++ b/src/thread/pthread_mutexattr_setrobust.c
@@ -4,16 +4,18 @@
 void __do_private_robust_list()
 {
 	pthread_t self = __pthread_self();
-	void **p, **prev, **next;
+	volatile void *volatile *p;
+	volatile void *volatile *prev;
+	volatile void *volatile *next;
 	pthread_mutex_t *m;
 
-	for (prev=0, p=self->robust_list.head; p; p=next) {
+	prev = &self->robust_list.head;
+	for (p=self->robust_list.head; p&&p!=&self->robust_list.head; p=next) {
 		next = *p;
 		m = (void *)((char *)p - offsetof(pthread_mutex_t, _m_next));
 		if (!(m->_m_type & 128)) {
 			int waiters = m->_m_waiters;
-			if (prev) *prev = next;
-			else self->robust_list.head = next;
+			*prev = next;
 			int cont = a_swap(&m->_m_lock, self->tid|0x40000000);
 			if (cont < 0 || waiters) __wake(&m->_m_lock, 1, 1);
 		} else {
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-02 07:42:20 +0000