From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Thu, 11 Sep 2025 13:49:30 +0000 (-0300)
Subject: mips: Remove ununsed atomic macros
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c787f0ec3e61c497fe72a8a8e9d43f86165f441e;p=thirdparty%2Fglibc.git

mips: Remove ununsed atomic macros

These are already provided by the generic include/atomic.h.

Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>
---

diff --git a/sysdeps/mips/atomic-machine.h b/sysdeps/mips/atomic-machine.h
index b88a6871ae..850536af46 100644
--- a/sysdeps/mips/atomic-machine.h
+++ b/sysdeps/mips/atomic-machine.h
@@ -42,8 +42,6 @@
 #define MIPS_SYNC_STR_1(X) MIPS_SYNC_STR_2(X)
 #define MIPS_SYNC_STR MIPS_SYNC_STR_1(MIPS_SYNC)
 
-#define USE_ATOMIC_COMPILER_BUILTINS 1
-
 /* MIPS is an LL/SC machine.  However, XLP has a direct atomic exchange
    instruction which will be used by __atomic_exchange_n.  */
 #ifdef _MIPS_ARCH_XLP
@@ -52,124 +50,6 @@
 # define ATOMIC_EXCHANGE_USES_CAS 1
 #endif
 
-/* Compare and exchange.
-   For all "bool" routines, we return FALSE if exchange successful.  */
-
-#define __arch_compare_and_exchange_bool_8_int(mem, newval, oldval, model) \
-  (abort (), 0)
-
-#define __arch_compare_and_exchange_bool_16_int(mem, newval, oldval, model) \
-  (abort (), 0)
-
-#define __arch_compare_and_exchange_bool_32_int(mem, newval, oldval, model) \
-  ({									\
-    typeof (*mem) __oldval = (oldval);					\
-    !__atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0,	\
-				  model, __ATOMIC_RELAXED);		\
-  })
-
-#define __arch_compare_and_exchange_val_8_int(mem, newval, oldval, model) \
-  (abort (), (typeof(*mem)) 0)
-
-#define __arch_compare_and_exchange_val_16_int(mem, newval, oldval, model) \
-  (abort (), (typeof(*mem)) 0)
-
-#define __arch_compare_and_exchange_val_32_int(mem, newval, oldval, model) \
-  ({									\
-    typeof (*mem) __oldval = (oldval);					\
-    __atomic_compare_exchange_n (mem, (void *) &__oldval, newval, 0,	\
-				 model, __ATOMIC_RELAXED);		\
-    __oldval;								\
-  })
-
-#if _MIPS_SIM == _ABIO32
-  /* We can't do an atomic 64-bit operation in O32.  */
-# define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \
-  (abort (), 0)
-# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
-  (abort (), (typeof(*mem)) 0)
-#else
-# define __arch_compare_and_exchange_bool_64_int(mem, newval, oldval, model) \
-  __arch_compare_and_exchange_bool_32_int (mem, newval, oldval, model)
-# define __arch_compare_and_exchange_val_64_int(mem, newval, oldval, model) \
-  __arch_compare_and_exchange_val_32_int (mem, newval, oldval, model)
-#endif
-
-/* Compare and exchange with "acquire" semantics, ie barrier after.  */
-
-#define atomic_compare_and_exchange_bool_acq(mem, new, old)	\
-  __atomic_bool_bysize (__arch_compare_and_exchange_bool, int,	\
-			mem, new, old, __ATOMIC_ACQUIRE)
-
-#define atomic_compare_and_exchange_val_acq(mem, new, old)	\
-  __atomic_val_bysize (__arch_compare_and_exchange_val, int,	\
-		       mem, new, old, __ATOMIC_ACQUIRE)
-
-/* Compare and exchange with "release" semantics, ie barrier before.  */
-
-#define atomic_compare_and_exchange_val_rel(mem, new, old)	 \
-  __atomic_val_bysize (__arch_compare_and_exchange_val, int,    \
-                       mem, new, old, __ATOMIC_RELEASE)
-
-
-/* Atomic exchange (without compare).  */
-
-#define __arch_exchange_8_int(mem, newval, model)	\
-  (abort (), (typeof(*mem)) 0)
-
-#define __arch_exchange_16_int(mem, newval, model)	\
-  (abort (), (typeof(*mem)) 0)
-
-#define __arch_exchange_32_int(mem, newval, model)	\
-  __atomic_exchange_n (mem, newval, model)
-
-#if _MIPS_SIM == _ABIO32
-/* We can't do an atomic 64-bit operation in O32.  */
-# define __arch_exchange_64_int(mem, newval, model)	\
-  (abort (), (typeof(*mem)) 0)
-#else
-# define __arch_exchange_64_int(mem, newval, model)	\
-  __atomic_exchange_n (mem, newval, model)
-#endif
-
-#define atomic_exchange_acq(mem, value)				\
-  __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_ACQUIRE)
-
-#define atomic_exchange_rel(mem, value)				\
-  __atomic_val_bysize (__arch_exchange, int, mem, value, __ATOMIC_RELEASE)
-
-
-/* Atomically add value and return the previous (unincremented) value.  */
-
-#define __arch_exchange_and_add_8_int(mem, value, model)	\
-  (abort (), (typeof(*mem)) 0)
-
-#define __arch_exchange_and_add_16_int(mem, value, model)	\
-  (abort (), (typeof(*mem)) 0)
-
-#define __arch_exchange_and_add_32_int(mem, value, model)	\
-  __atomic_fetch_add (mem, value, model)
-
-#if _MIPS_SIM == _ABIO32
-/* We can't do an atomic 64-bit operation in O32.  */
-# define __arch_exchange_and_add_64_int(mem, value, model)	\
-  (abort (), (typeof(*mem)) 0)
-#else
-# define __arch_exchange_and_add_64_int(mem, value, model)	\
-  __atomic_fetch_add (mem, value, model)
-#endif
-
-#define atomic_exchange_and_add_acq(mem, value)			\
-  __atomic_val_bysize (__arch_exchange_and_add, int, mem, value,	\
-		       __ATOMIC_ACQUIRE)
-
-#define atomic_exchange_and_add_rel(mem, value)			\
-  __atomic_val_bysize (__arch_exchange_and_add, int, mem, value,	\
-		       __ATOMIC_RELEASE)
-
-/* TODO: More atomic operations could be implemented efficiently; only the
-   basic requirements are done.  */
-
 #ifdef __mips16
 # define atomic_full_barrier() __sync_synchronize ()