configure: Add --enable-compiler-atomic-builtins option

[userspace-rcu.git] / include / urcu / config.h.in

diff --git a/include/urcu/config.h.in b/include/urcu/config.h.in
index 73506319f7d522c2f1eb65ca9ba52f3187c273b9..aa1d6c92b24cb2bff2d97751aaac5cad0c4f7da1 100644 (file)
--- a/include/urcu/config.h.in
+++ b/include/urcu/config.h.in
@@ -1,22 +1,14 @@
-/* urcu/config.h.in. Manually generated for control over the contained defs. */
-
-/* Defined when on a system that has memory fence instructions. */
-#undef CONFIG_RCU_HAVE_FENCE
+// SPDX-FileCopyrightText: 2023 EfficiOS Inc.
+//
+// SPDX-License-Identifier: LGPL-2.1-or-later
 
-/* Defined when on a system with futex support. */
-#undef CONFIG_RCU_HAVE_FUTEX
+/* urcu/config.h.in. Manually generated for control over the contained defs. */
 
 /* Enable SMP support. With SMP support enabled, uniprocessors are also
    supported. With SMP support disabled, UP systems work fine, but the
    behavior of SMP systems is undefined. */
 #undef CONFIG_RCU_SMP
 
-/* Compatibility mode for i386 which lacks cmpxchg instruction. */
-#undef CONFIG_RCU_COMPAT_ARCH
-
-/* Use the dmb instruction is available for use on ARM. */
-#undef CONFIG_RCU_ARM_HAVE_DMB
-
 /* TLS provided by the compiler. */
 #undef CONFIG_RCU_TLS
 
@@ -31,6 +23,9 @@
    Introduces a performance penalty. */
 #undef CONFIG_RCU_DEBUG
 
+/* Uatomic API uses atomic builtins. */
+#undef CONFIG_RCU_USE_ATOMIC_BUILTINS
+
 /* Expose multi-flavor support */
 #define CONFIG_RCU_HAVE_MULTIFLAVOR 1