--- /dev/null
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/crypto.h>
+
+#include <openssl/cpu.h>
+
+#include "internal.h"
+
+
+#if !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_STATIC_ARMCAP) && \
+ (defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \
+ defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64) || \
+ defined(OPENSSL_PPC64LE))
+// x86, x86_64, the ARMs and ppc64le need to record the result of a
+// cpuid/getauxval call for the asm to work correctly, unless compiled without
+// asm code.
+#define NEED_CPUID
+
+#else
+
+// Otherwise, don't emit a static initialiser.
+
+#if !defined(BORINGSSL_NO_STATIC_INITIALIZER)
+#define BORINGSSL_NO_STATIC_INITIALIZER
+#endif
+
+#endif /* !OPENSSL_NO_ASM && (OPENSSL_X86 || OPENSSL_X86_64 ||
+ OPENSSL_ARM || OPENSSL_AARCH64) */
+
+
+// Our assembly does not use the GOT to reference symbols, which means
+// references to visible symbols will often require a TEXTREL. This is
+// undesirable, so all assembly-referenced symbols should be hidden. CPU
+// capabilities are the only such symbols defined in C. Explicitly hide them,
+// rather than rely on being built with -fvisibility=hidden.
+#if defined(OPENSSL_WINDOWS)
+#define HIDDEN
+#else
+#define HIDDEN __attribute__((visibility("hidden")))
+#endif
+
+
+// The capability variables are defined in this file in order to work around a
+// linker bug. When linking with a .a, if no symbols in a .o are referenced
+// then the .o is discarded, even if it has constructor functions.
+//
+// This still means that any binaries that don't include some functionality
+// that tests the capability values will still skip the constructor but, so
+// far, the init constructor function only sets the capability variables.
+
+#if defined(OPENSSL_X86) || defined(OPENSSL_X86_64)
+
+// This value must be explicitly initialised to zero in order to work around a
+// bug in libtool or the linker on OS X.
+//
+// If not initialised then it becomes a "common symbol". When put into an
+// archive, linking on OS X will fail to resolve common symbols. By
+// initialising it to zero, it becomes a "data symbol", which isn't so
+// affected.
+HIDDEN uint32_t OPENSSL_ia32cap_P[4] = {0};
+
+#elif defined(OPENSSL_PPC64LE)
+
+HIDDEN unsigned long OPENSSL_ppc64le_hwcap2 = 0;
+
+#elif defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)
+
+#include <openssl/arm_arch.h>
+
+#if defined(OPENSSL_STATIC_ARMCAP)
+
+HIDDEN uint32_t OPENSSL_armcap_P =
+#if defined(OPENSSL_STATIC_ARMCAP_NEON) || defined(__ARM_NEON__)
+ ARMV7_NEON |
+#endif
+#if defined(OPENSSL_STATIC_ARMCAP_AES) || defined(__ARM_FEATURE_CRYPTO)
+ ARMV8_AES |
+#endif
+#if defined(OPENSSL_STATIC_ARMCAP_SHA1) || defined(__ARM_FEATURE_CRYPTO)
+ ARMV8_SHA1 |
+#endif
+#if defined(OPENSSL_STATIC_ARMCAP_SHA256) || defined(__ARM_FEATURE_CRYPTO)
+ ARMV8_SHA256 |
+#endif
+#if defined(OPENSSL_STATIC_ARMCAP_PMULL) || defined(__ARM_FEATURE_CRYPTO)
+ ARMV8_PMULL |
+#endif
+ 0;
+
+#else
+HIDDEN uint32_t OPENSSL_armcap_P = 0;
+#endif
+
+#endif
+
+#if defined(BORINGSSL_FIPS)
+// In FIPS mode, the power-on self-test function calls |CRYPTO_library_init|
+// because we have to ensure that CPUID detection occurs first.
+#define BORINGSSL_NO_STATIC_INITIALIZER
+#endif
+
+#if defined(OPENSSL_WINDOWS) && !defined(BORINGSSL_NO_STATIC_INITIALIZER)
+#define OPENSSL_CDECL __cdecl
+#else
+#define OPENSSL_CDECL
+#endif
+
+#if defined(BORINGSSL_NO_STATIC_INITIALIZER)
+static CRYPTO_once_t once = CRYPTO_ONCE_INIT;
+#elif defined(_MSC_VER)
+#pragma section(".CRT$XCU", read)
+static void __cdecl do_library_init(void);
+__declspec(allocate(".CRT$XCU")) void(*library_init_constructor)(void) =
+ do_library_init;
+#else
+static void do_library_init(void) __attribute__ ((constructor));
+#endif
+
+// do_library_init is the actual initialization function. If
+// BORINGSSL_NO_STATIC_INITIALIZER isn't defined, this is set as a static
+// initializer. Otherwise, it is called by CRYPTO_library_init.
+static void OPENSSL_CDECL do_library_init(void) {
+ // WARNING: this function may only configure the capability variables. See the
+ // note above about the linker bug.
+#if defined(NEED_CPUID)
+ OPENSSL_cpuid_setup();
+#endif
+}
+
+void CRYPTO_library_init(void) {
+ // TODO(davidben): It would be tidier if this build knob could be replaced
+ // with an internal lazy-init mechanism that would handle things correctly
+ // in-library. https://crbug.com/542879
+#if defined(BORINGSSL_NO_STATIC_INITIALIZER)
+ CRYPTO_once(&once, do_library_init);
+#endif
+}
+
+int CRYPTO_is_confidential_build(void) {
+#if defined(BORINGSSL_CONFIDENTIAL)
+ return 1;
+#else
+ return 0;
+#endif
+}
+
+int CRYPTO_has_asm(void) {
+#if defined(OPENSSL_NO_ASM)
+ return 0;
+#else
+ return 1;
+#endif
+}
+
+const char *SSLeay_version(int unused) {
+ return "BoringSSL";
+}
+
+const char *OpenSSL_version(int unused) {
+ return "BoringSSL";
+}
+
+unsigned long SSLeay(void) {
+ return OPENSSL_VERSION_NUMBER;
+}
+
+unsigned long OpenSSL_version_num(void) {
+ return OPENSSL_VERSION_NUMBER;
+}
+
+int CRYPTO_malloc_init(void) {
+ return 1;
+}
+
+void ENGINE_load_builtin_engines(void) {}
+
+int ENGINE_register_all_complete(void) {
+ return 1;
+}
+
+void OPENSSL_load_builtin_modules(void) {}
+
+int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings) {
+ CRYPTO_library_init();
+ return 1;
+}
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