OpenSSL 3.1.3 built for android.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4508 ed5197a5-7fde-0310-b194-c3ffbd925b24

deps/openssl/android/arm64-v8a/usr/local/include/internal/refcount.h

@@ -1,35 +1,34 @@
 /*
- * Copyright 2016-2019 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2016-2023 The OpenSSL Project Authors. All Rights Reserved.
  *
- * Licensed under the OpenSSL license (the "License").  You may not use
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
  * in the file LICENSE in the source distribution or at
  * https://www.openssl.org/source/license.html
  */
 #ifndef OSSL_INTERNAL_REFCOUNT_H
 # define OSSL_INTERNAL_REFCOUNT_H
+# pragma once
 
-/* Used to checking reference counts, most while doing perl5 stuff :-) */
-# if defined(OPENSSL_NO_STDIO)
-#  if defined(REF_PRINT)
-#   error "REF_PRINT requires stdio"
+# include <openssl/e_os2.h>
+# include <openssl/trace.h>
+
+# if defined(OPENSSL_THREADS) && !defined(OPENSSL_DEV_NO_ATOMICS)
+#  if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \
+      && !defined(__STDC_NO_ATOMICS__)
+#   include <stdatomic.h>
+#   define HAVE_C11_ATOMICS
 #  endif
-# endif
 
-# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \
-     && !defined(__STDC_NO_ATOMICS__)
-#  include <stdatomic.h>
-#  define HAVE_C11_ATOMICS
-# endif
+#  if defined(HAVE_C11_ATOMICS) && defined(ATOMIC_INT_LOCK_FREE) \
+      && ATOMIC_INT_LOCK_FREE > 0
 
-# if defined(HAVE_C11_ATOMICS) && defined(ATOMIC_INT_LOCK_FREE) \
-     && ATOMIC_INT_LOCK_FREE > 0
-
-#  define HAVE_ATOMICS 1
+#   define HAVE_ATOMICS 1
 
 typedef _Atomic int CRYPTO_REF_COUNT;
 
-static inline int CRYPTO_UP_REF(_Atomic int *val, int *ret, void *lock)
+static inline int CRYPTO_UP_REF(_Atomic int *val, int *ret,
+                                ossl_unused void *lock)
 {
     *ret = atomic_fetch_add_explicit(val, 1, memory_order_relaxed) + 1;
     return 1;
@@ -45,7 +44,8 @@ static inline int CRYPTO_UP_REF(_Atomic int *val, int *ret, void *lock)
  * to mutable members doesn't have to be serialized anymore, which would
  * otherwise imply an acquire fence. Hence conditional acquire fence...
  */
-static inline int CRYPTO_DOWN_REF(_Atomic int *val, int *ret, void *lock)
+static inline int CRYPTO_DOWN_REF(_Atomic int *val, int *ret,
+                                  ossl_unused void *lock)
 {
     *ret = atomic_fetch_sub_explicit(val, 1, memory_order_relaxed) - 1;
     if (*ret == 0)
@@ -53,78 +53,108 @@ static inline int CRYPTO_DOWN_REF(_Atomic int *val, int *ret, void *lock)
     return 1;
 }
 
-# elif defined(__GNUC__) && defined(__ATOMIC_RELAXED) && __GCC_ATOMIC_INT_LOCK_FREE > 0
+#  elif defined(__GNUC__) && defined(__ATOMIC_RELAXED) && __GCC_ATOMIC_INT_LOCK_FREE > 0
 
-#  define HAVE_ATOMICS 1
+#   define HAVE_ATOMICS 1
 
 typedef int CRYPTO_REF_COUNT;
 
-static __inline__ int CRYPTO_UP_REF(int *val, int *ret, void *lock)
+static __inline__ int CRYPTO_UP_REF(int *val, int *ret, ossl_unused void *lock)
 {
     *ret = __atomic_fetch_add(val, 1, __ATOMIC_RELAXED) + 1;
     return 1;
 }
 
-static __inline__ int CRYPTO_DOWN_REF(int *val, int *ret, void *lock)
+static __inline__ int CRYPTO_DOWN_REF(int *val, int *ret,
+                                      ossl_unused void *lock)
 {
     *ret = __atomic_fetch_sub(val, 1, __ATOMIC_RELAXED) - 1;
     if (*ret == 0)
         __atomic_thread_fence(__ATOMIC_ACQUIRE);
     return 1;
 }
+#  elif defined(__ICL) && defined(_WIN32)
+#   define HAVE_ATOMICS 1
+typedef volatile int CRYPTO_REF_COUNT;
 
-# elif defined(_MSC_VER) && _MSC_VER>=1200
+static __inline int CRYPTO_UP_REF(volatile int *val, int *ret,
+                                  ossl_unused void *lock)
+{
+    *ret = _InterlockedExchangeAdd((void *)val, 1) + 1;
+    return 1;
+}
 
-#  define HAVE_ATOMICS 1
+static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret,
+                                    ossl_unused void *lock)
+{
+    *ret = _InterlockedExchangeAdd((void *)val, -1) - 1;
+    return 1;
+}
+
+#  elif defined(_MSC_VER) && _MSC_VER>=1200
+
+#   define HAVE_ATOMICS 1
 
 typedef volatile int CRYPTO_REF_COUNT;
 
-#  if (defined(_M_ARM) && _M_ARM>=7 && !defined(_WIN32_WCE)) || defined(_M_ARM64)
-#   include <intrin.h>
-#   if defined(_M_ARM64) && !defined(_ARM_BARRIER_ISH)
-#    define _ARM_BARRIER_ISH _ARM64_BARRIER_ISH
-#   endif
+#   if (defined(_M_ARM) && _M_ARM>=7 && !defined(_WIN32_WCE)) || defined(_M_ARM64)
+#    include <intrin.h>
+#    if defined(_M_ARM64) && !defined(_ARM_BARRIER_ISH)
+#     define _ARM_BARRIER_ISH _ARM64_BARRIER_ISH
+#    endif
 
-static __inline int CRYPTO_UP_REF(volatile int *val, int *ret, void *lock)
+static __inline int CRYPTO_UP_REF(volatile int *val, int *ret,
+                                  ossl_unused void *lock)
 {
     *ret = _InterlockedExchangeAdd_nf(val, 1) + 1;
     return 1;
 }
 
-static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret, void *lock)
+static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret,
+                                    ossl_unused void *lock)
 {
     *ret = _InterlockedExchangeAdd_nf(val, -1) - 1;
     if (*ret == 0)
         __dmb(_ARM_BARRIER_ISH);
     return 1;
 }
-#  else
-#   if !defined(_WIN32_WCE)
-#    pragma intrinsic(_InterlockedExchangeAdd)
 #   else
-#    if _WIN32_WCE >= 0x600
-      extern long __cdecl _InterlockedExchangeAdd(long volatile*, long);
+#    if !defined(_WIN32_WCE)
+#     pragma intrinsic(_InterlockedExchangeAdd)
 #    else
-      /* under Windows CE we still have old-style Interlocked* functions */
-      extern long __cdecl InterlockedExchangeAdd(long volatile*, long);
-#     define _InterlockedExchangeAdd InterlockedExchangeAdd
+#     if _WIN32_WCE >= 0x600
+       extern long __cdecl _InterlockedExchangeAdd(long volatile*, long);
+#     else
+       /* under Windows CE we still have old-style Interlocked* functions */
+       extern long __cdecl InterlockedExchangeAdd(long volatile*, long);
+#      define _InterlockedExchangeAdd InterlockedExchangeAdd
+#     endif
 #    endif
-#   endif
 
-static __inline int CRYPTO_UP_REF(volatile int *val, int *ret, void *lock)
+static __inline int CRYPTO_UP_REF(volatile int *val, int *ret,
+                                  ossl_unused void *lock)
 {
     *ret = _InterlockedExchangeAdd(val, 1) + 1;
     return 1;
 }
 
-static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret, void *lock)
+static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret,
+                                    ossl_unused void *lock)
 {
     *ret = _InterlockedExchangeAdd(val, -1) - 1;
     return 1;
 }
-#  endif
+#   endif
 
-# else
+#  endif
+# endif  /* !OPENSSL_DEV_NO_ATOMICS */
+
+/*
+ * All the refcounting implementations above define HAVE_ATOMICS, so if it's
+ * still undefined here (such as when OPENSSL_DEV_NO_ATOMICS is defined), it
+ * means we need to implement a fallback.  This fallback uses locks.
+ */
+# ifndef HAVE_ATOMICS
 
 typedef int CRYPTO_REF_COUNT;
 
@@ -140,11 +170,9 @@ typedef int CRYPTO_REF_COUNT;
 #  define REF_ASSERT_ISNT(i)
 # endif
 
-# ifdef REF_PRINT
-#  define REF_PRINT_COUNT(a, b) \
-        fprintf(stderr, "%p:%4d:%s\n", b, b->references, a)
-# else
-#  define REF_PRINT_COUNT(a, b)
-# endif
+# define REF_PRINT_EX(text, count, object) \
+    OSSL_TRACE3(REF_COUNT, "%p:%4d:%s\n", (object), (count), (text));
+# define REF_PRINT_COUNT(text, object) \
+    REF_PRINT_EX(text, object->references, (void *)object)
 
 #endif