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authorAndreas Schwab <schwab@linux-m68k.org>2015-01-25 22:09:05 +0100
committerAndreas Schwab <schwab@linux-m68k.org>2015-01-25 23:36:02 +0100
commit45819cbca186a7d04889e3d1fc469c2780b28a0e (patch)
tree5b5f6e018e7224c2f2e59df3d51f8acdc510e6b8
parent403cc231e64a4f0b3e7273404320883ca9267f0e (diff)
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m68k/coldfire: avoid warning about volatile register variables
-rw-r--r--ChangeLog4
-rw-r--r--sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h19
2 files changed, 13 insertions, 10 deletions
diff --git a/ChangeLog b/ChangeLog
index dcab5e0032..57f9f99b9e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2015-01-25  Andreas Schwab  <schwab@linux-m68k.org>
 
+	* sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h
+	(atomic_compare_and_exchange_val_acq): Use uint32_t for the
+	register variables.
+
 	* sysdeps/m68k/m680x0/fpu/fraiseexcpt.c (__feraiseexcept): Use
 	libm_hidden_def.
 
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h b/sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h
index 8454a8cf26..6e069edabe 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/bits/atomic.h
@@ -50,9 +50,9 @@ typedef uintmax_t uatomic_max_t;
     __typeof (mem) _mem = mem;						\
     __typeof (oldval) _oldval = oldval;					\
     __typeof (newval) _newval = newval;					\
-    register __typeof (mem) _a0 asm ("a0") = _mem;			\
-    register __typeof (oldval) _d0 asm ("d0") = _oldval;		\
-    register __typeof (newval) _d1 asm ("d1") = _newval;		\
+    register uint32_t *_a0 asm ("a0") = (uint32_t *) _mem;		\
+    register uint32_t _d0 asm ("d0") = (uint32_t) _oldval;		\
+    register uint32_t _d1 asm ("d1") = (uint32_t) _newval;		\
     void *tmp;								\
 									\
     asm ("movel #_GLOBAL_OFFSET_TABLE_@GOTPC, %2\n\t"			\
@@ -63,7 +63,7 @@ typedef uintmax_t uatomic_max_t;
 	 "jsr (%2)\n\t"							\
 	 : "+d" (_d0), "+m" (*_a0), "=&a" (tmp)				\
 	 : "a" (_a0), "d" (_d1));					\
-    _d0;								\
+    (__typeof (oldval)) _d0;						\
   })
 #else
 # define atomic_compare_and_exchange_val_acq(mem, newval, oldval)	\
@@ -73,16 +73,15 @@ typedef uintmax_t uatomic_max_t;
     __typeof (mem) _mem = mem;						\
     __typeof (oldval) _oldval = oldval;					\
     __typeof (newval) _newval = newval;					\
-    register __typeof (oldval) _d0 asm ("d0")				\
-      = (__typeof (oldval)) SYS_ify (atomic_cmpxchg_32);		\
-    register __typeof (mem) _a0 asm ("a0") = _mem;			\
-    register __typeof (oldval) _d2 asm ("d2") = _oldval;		\
-    register __typeof (newval) _d1 asm ("d1") = _newval;		\
+    register uint32_t _d0 asm ("d0") = SYS_ify (atomic_cmpxchg_32);	\
+    register uint32_t *_a0 asm ("a0") = (uint32_t *) _mem;		\
+    register uint32_t _d2 asm ("d2") = (uint32_t) _oldval;		\
+    register uint32_t _d1 asm ("d1") = (uint32_t) _newval;		\
 									\
     asm ("trap #0"							\
 	 : "+d" (_d0), "+m" (*_a0)					\
 	 : "a" (_a0), "d" (_d2), "d" (_d1));				\
-    _d0;								\
+    (__typeof (oldval)) _d0;						\
   })
 #endif