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-rw-r--r--sysdeps/i386/i486/bits/atomic.h49
-rw-r--r--sysdeps/ia64/bits/atomic.h18
-rw-r--r--sysdeps/powerpc/bits/atomic.h62
-rw-r--r--sysdeps/s390/bits/atomic.h10
-rw-r--r--sysdeps/unix/sysv/linux/getsysstats.c2
-rw-r--r--sysdeps/x86_64/bits/atomic.h16
6 files changed, 80 insertions, 77 deletions
diff --git a/sysdeps/i386/i486/bits/atomic.h b/sysdeps/i386/i486/bits/atomic.h
index e22e560a38..2255e19f8e 100644
--- a/sysdeps/i386/i486/bits/atomic.h
+++ b/sysdeps/i386/i486/bits/atomic.h
@@ -55,23 +55,23 @@ typedef uintmax_t uatomic_max_t;
 #endif
 
 
-#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
-     __asm __volatile (LOCK "cmpxchgb %b2, %1; setne %0"		      \
+#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
+  ({ __typeof (*mem) ret;						      \
+     __asm __volatile (LOCK "cmpxchgb %b2, %1"				      \
 		       : "=a" (ret), "=m" (*mem)			      \
 		       : "q" (newval), "1" (*mem), "0" (oldval));	      \
      ret; })
 
-#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
-     __asm __volatile (LOCK "cmpxchgw %w2, %1; setne %0"		      \
+#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
+  ({ __typeof (*mem) ret;						      \
+     __asm __volatile (LOCK "cmpxchgw %w2, %1"				      \
 		       : "=a" (ret), "=m" (*mem)			      \
 		       : "r" (newval), "1" (*mem), "0" (oldval));	      \
      ret; })
 
-#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
-     __asm __volatile (LOCK "cmpxchgl %2, %1; setne %0"			      \
+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
+  ({ __typeof (*mem) ret;						      \
+     __asm __volatile (LOCK "cmpxchgl %2, %1"				      \
 		       : "=a" (ret), "=m" (*mem)			      \
 		       : "r" (newval), "1" (*mem), "0" (oldval));	      \
      ret; })
@@ -83,37 +83,34 @@ typedef uintmax_t uatomic_max_t;
    really going to be used the code below can be used on Intel Pentium
    and later, but NOT on i486.  */
 #if 1
-# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
   (abort (), 0)
 #else
 # ifdef __PIC__
-#  define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
-     int ignore;							      \
-     __asm __volatile ("xchgl %3, %%ebx\n\t"				      \
-		       LOCK "cmpxchg8b %2, %1\n\t"			      \
-		       "setne %0\n\t"					      \
-		       "xchgl %3, %%ebx"				      \
-		       : "=a" (ret), "=m" (*mem), "=d" (ignore)		      \
+#  define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+  ({ __typeof (*mem) ret;						      \
+     __asm __volatile ("xchgl %2, %%ebx\n\t"				      \
+		       LOCK "cmpxchg8b %1\n\t"			      \
+		       "xchgl %2, %%ebx"				      \
+		       : "=A" (ret), "=m" (*mem)			      \
 		       : "DS" (((unsigned long long int) (newval))	      \
 			       & 0xffffffff),				      \
 			 "c" (((unsigned long long int) (newval)) >> 32),     \
-			 "1" (*mem), "0" (((unsigned long long int) (oldval)) \
+			 "1" (*mem), "a" (((unsigned long long int) (oldval)) \
 					  & 0xffffffff),		      \
-			 "2" (((unsigned long long int) (oldval)) >> 32));    \
+			 "d" (((unsigned long long int) (oldval)) >> 32));    \
      ret; })
 # else
 #  define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
-     int ignore;							      \
-     __asm __volatile (LOCK "cmpxchg8b %2, %1; setne %0"		      \
-		       : "=a" (ret), "=m" (*mem), "=d" (ignore)		      \
+  ({ __typeof (*mem) ret;						      \
+     __asm __volatile (LOCK "cmpxchg8b %1"				      \
+		       : "=A" (ret), "=m" (*mem)			      \
 		       : "b" (((unsigned long long int) (newval))	      \
 			      & 0xffffffff),				      \
 			  "c" (((unsigned long long int) (newval)) >> 32),    \
-			 "1" (*mem), "0" (((unsigned long long int) (oldval)) \
+			 "1" (*mem), "a" (((unsigned long long int) (oldval)) \
 					  & 0xffffffff),		      \
-			 "2" (((unsigned long long int) (oldval)) >> 32));    \
+			 "d" (((unsigned long long int) (oldval)) >> 32));    \
      ret; })
 # endif
 #endif
diff --git a/sysdeps/ia64/bits/atomic.h b/sysdeps/ia64/bits/atomic.h
index 7c6ebf13ff..27789c0a2e 100644
--- a/sysdeps/ia64/bits/atomic.h
+++ b/sysdeps/ia64/bits/atomic.h
@@ -45,25 +45,31 @@ typedef intmax_t atomic_max_t;
 typedef uintmax_t uatomic_max_t;
 
 
-#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \
   (abort (), 0)
 
-#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
   (abort (), 0)
 
-#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \
   (!__sync_bool_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \
 				     (int) (long) (newval)))
 
-#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
   (!__sync_bool_compare_and_swap_di ((long *) (mem), (long) (oldval), \
 				     (long) (newval)))
 
-#define __arch_compare_and_exchange_32_val_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
+  (abort (), 0)
+
+#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
+  (abort (), 0)
+
+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
   __sync_val_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \
 				  (int) (long) (newval))
 
-#define __arch_compare_and_exchange_64_val_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
   __sync_val_compare_and_swap_di ((long *) (mem), (long) (oldval), \
 				  (long) (newval))
 
diff --git a/sysdeps/powerpc/bits/atomic.h b/sysdeps/powerpc/bits/atomic.h
index 956272c482..49f1c14b9d 100644
--- a/sysdeps/powerpc/bits/atomic.h
+++ b/sysdeps/powerpc/bits/atomic.h
@@ -46,10 +46,10 @@ typedef intmax_t atomic_max_t;
 typedef uintmax_t uatomic_max_t;
 
 
-#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \
   (abort (), 0)
 
-#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
   (abort (), 0)
 
 #ifdef UP
@@ -69,41 +69,41 @@ typedef uintmax_t uatomic_max_t;
  * XXX this may not work properly on 64-bit if the register
  * containing oldval has the high half non-zero for some reason.
  */
-#define __arch_compare_and_exchange_32_acq(mem, newval, oldval)	\
-({								\
-  unsigned int __tmp;						\
-  __asm __volatile (__ARCH_REL_INSTR "\n"			\
-		    "1:	lwarx	%0,0,%1\n"			\
-		    "	subf.	%0,%2,%0\n"			\
-		    "	bne	2f\n"				\
-		    "	stwcx.	%3,0,%1\n"			\
-		    "	bne-	1b\n"				\
-		    "2:	" __ARCH_ACQ_INSTR			\
-		    : "=&r" (__tmp)				\
-		    : "r" (mem), "r" (oldval), "r" (newval)	\
-		    : "cr0", "memory");				\
-  __tmp != 0;							\
+#define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \
+({									      \
+  unsigned int __tmp;							      \
+  __asm __volatile (__ARCH_REL_INSTR "\n"				      \
+		    "1:	lwarx	%0,0,%1\n"				      \
+		    "	subf.	%0,%2,%0\n"				      \
+		    "	bne	2f\n"					      \
+		    "	stwcx.	%3,0,%1\n"				      \
+		    "	bne-	1b\n"					      \
+		    "2:	" __ARCH_ACQ_INSTR				      \
+		    : "=&r" (__tmp)					      \
+		    : "r" (mem), "r" (oldval), "r" (newval)		      \
+		    : "cr0", "memory");					      \
+  __tmp != 0;								      \
 })
 
 #ifdef __powerpc64__
-# define __arch_compare_and_exchange_64_acq(mem, newval, oldval)\
-({								\
-  unsigned long	__tmp;						\
-  __asm __volatile (__ARCH_REL_INSTR "\n"			\
-		    "1:	ldarx	%0,0,%1\n"			\
-		    "	subf.	%0,%2,%0\n"			\
-		    "	bne	2f\n"				\
-		    "	stdcx.	%3,0,%1\n"			\
-		    "	bne-	1b\n"				\
-		    "2:	" __ARCH_ACQ_INSTR			\
-		    : "=&r" (__tmp)				\
-		    : "r" (mem), "r" (oldval), "r" (newval)	\
-		    : "cr0", "memory");				\
-  __tmp != 0;							\
+# define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
+({									      \
+  unsigned long	__tmp;							      \
+  __asm __volatile (__ARCH_REL_INSTR "\n"				      \
+		    "1:	ldarx	%0,0,%1\n"				      \
+		    "	subf.	%0,%2,%0\n"				      \
+		    "	bne	2f\n"					      \
+		    "	stdcx.	%3,0,%1\n"				      \
+		    "	bne-	1b\n"					      \
+		    "2:	" __ARCH_ACQ_INSTR				      \
+		    : "=&r" (__tmp)					      \
+		    : "r" (mem), "r" (oldval), "r" (newval)		      \
+		    : "cr0", "memory");					      \
+  __tmp != 0;								      \
 })
 
 #else /* powerpc32 */
-# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+# define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
   (abort (), 0)
 #endif
 
diff --git a/sysdeps/s390/bits/atomic.h b/sysdeps/s390/bits/atomic.h
index 375ae0d5e7..74321b62ae 100644
--- a/sysdeps/s390/bits/atomic.h
+++ b/sysdeps/s390/bits/atomic.h
@@ -45,13 +45,13 @@ typedef intmax_t atomic_max_t;
 typedef uintmax_t uatomic_max_t;
 
 
-#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \
   (abort (), 0)
 
-#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
   (abort (), 0)
 
-#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \
+#define __arch_compare_and_exchange_bool_32_acq(mem, newval, oldval) \
   ({ unsigned int *__mem = (unsigned int *) (mem);			      \
      unsigned int __old = (unsigned int) (oldval);			      \
      unsigned int __cmp = __old;					      \
@@ -61,7 +61,7 @@ typedef uintmax_t uatomic_max_t;
      __cmp != __old; })
 
 #ifdef __s390x__
-# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+# define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
   ({ unsigned long int *__mem = (unsigned long int *) (mem);		      \
      unsigned long int __old = (unsigned long int) (oldval);		      \
      unsigned long int __cmp = __old;					      \
@@ -73,6 +73,6 @@ typedef uintmax_t uatomic_max_t;
 /* For 31 bit we do not really need 64-bit compare-and-exchange. We can
    implement them by use of the csd instruction. The straightforward
    implementation causes warnings so we skip the definition for now.  */
-# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
+# define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
   (abort (), 0)
 #endif
diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c
index c44e45ca6b..71e90fefb1 100644
--- a/sysdeps/unix/sysv/linux/getsysstats.c
+++ b/sysdeps/unix/sysv/linux/getsysstats.c
@@ -85,7 +85,7 @@ get_proc_path (char *buffer, size_t bufsize)
 
   /* Now store the copied value.  But do it atomically.  */
   assert (sizeof (long int) == sizeof (void *__unbounded));
-  if (atomic_compare_and_exchange_acq (&mount_proc, copy_result, NULL) == 0)
+  if (! atomic_compare_and_exchange_bool_acq (&mount_proc, copy_result, NULL))
     /* Replacing the value failed.  This means another thread was
        faster and we don't need the copy anymore.  */
     free (copy_result);
diff --git a/sysdeps/x86_64/bits/atomic.h b/sysdeps/x86_64/bits/atomic.h
index 22d3ab0267..742f8b1773 100644
--- a/sysdeps/x86_64/bits/atomic.h
+++ b/sysdeps/x86_64/bits/atomic.h
@@ -55,29 +55,29 @@ typedef uintmax_t uatomic_max_t;
 #endif
 
 
-#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
+#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
+  ({ __typeof (*mem) ret;						      \
      __asm __volatile (LOCK "cmpxchgb %b2, %1; setne %0"		      \
 		       : "=a" (ret), "=m" (*mem)			      \
 		       : "q" (newval), "1" (*mem), "0" (oldval));	      \
      ret; })
 
-#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
+#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
+  ({ __typeof (*mem) ret;						      \
      __asm __volatile (LOCK "cmpxchgw %w2, %1; setne %0"		      \
 		       : "=a" (ret), "=m" (*mem)			      \
 		       : "r" (newval), "1" (*mem), "0" (oldval));	      \
      ret; })
 
-#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
+  ({ __typeof (*mem) ret;						      \
      __asm __volatile (LOCK "cmpxchgl %2, %1; setne %0"			      \
 		       : "=a" (ret), "=m" (*mem)			      \
 		       : "r" (newval), "1" (*mem), "0" (oldval));	      \
      ret; })
 
-#define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
-  ({ unsigned char ret;							      \
+#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+  ({ __typeof (*mem) ret;						      \
      __asm __volatile (LOCK "cmpxchgq %q2, %1; setne %0"		      \
 		       : "=a" (ret), "=m" (*mem)			      \
 		       : "r" (newval), "1" (*mem), "0" (oldval));	      \
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-14 10:08:39 +0000