1 files changed, 0 insertions, 72 deletions
diff --git a/libc/private/bionic_atomic_arm64.h b/libc/private/bionic_atomic_arm64.h
deleted file mode 100644
index c3a34e1..0000000
--- a/libc/private/bionic_atomic_arm64.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef BIONIC_ATOMIC_AARCH64_H
-#define BIONIC_ATOMIC_AARCH64_H
-
-/* For ARMv8, we can use the 'dmb' instruction directly */
-__ATOMIC_INLINE__ void __bionic_memory_barrier() {
-  __asm__ __volatile__ ( "dmb ish" : : : "memory" );
-}
-
-/* Compare-and-swap, without any explicit barriers. Note that this function
- * returns 0 on success, and 1 on failure. The opposite convention is typically
- * used on other platforms.
- */
-__ATOMIC_INLINE__ int __bionic_cmpxchg(int32_t old_value, int32_t new_value, volatile int32_t* ptr) {
-  int32_t tmp, oldval;
-  __asm__ __volatile__ (
-      "// atomic_cmpxchg\n"
-      "1:  ldxr %w1, [%3]\n"
-      "    cmp %w1, %w4\n"
-      "    b.ne 2f\n"
-      "    stxr %w0, %w5, [%3]\n"
-      "    cbnz  %w0, 1b\n"
-      "2:"
-      : "=&r" (tmp), "=&r" (oldval), "+o"(*ptr)
-      : "r" (ptr), "Ir" (old_value), "r" (new_value)
-      : "cc", "memory");
-  return oldval != old_value;
-}
-
-/* Swap, without any explicit barriers.  */
-__ATOMIC_INLINE__ int32_t __bionic_swap(int32_t new_value, volatile int32_t* ptr) {
-  int32_t prev, status;
-  __asm__ __volatile__ (
-      "// atomic_swap\n"
-      "1:  ldxr %w0, [%3]\n"
-      "    stxr %w1, %w4, [%3]\n"
-      "    cbnz %w1, 1b\n"
-      : "=&r" (prev), "=&r" (status), "+o" (*ptr)
-      : "r" (ptr), "r" (new_value)
-      : "cc", "memory");
-  return prev;
-}
-
-/* Atomic decrement, without explicit barriers.  */
-__ATOMIC_INLINE__ int32_t __bionic_atomic_dec(volatile int32_t* ptr) {
-  int32_t prev, tmp, status;
-  __asm__ __volatile__ (
-      "1:  ldxr %w0, [%4]\n"
-      "    sub %w1, %w0, #1\n"
-      "    stxr %w2, %w1, [%4]\n"
-      "    cbnz %w2, 1b"
-      : "=&r" (prev), "=&r" (tmp), "=&r" (status), "+m"(*ptr)
-      : "r" (ptr)
-      : "cc", "memory");
-  return prev;
-}
-
-#endif /* BIONIC_ATOMICS_AARCH64_H */