| /* 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 "internal.h" |
| |
| |
| #if !defined(OPENSSL_NO_ASM) && !defined(OPENSSL_STATIC_ARMCAP) && \ |
| (defined(OPENSSL_X86) || defined(OPENSSL_X86_64) || \ |
| defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) |
| /* x86, x86_64 and the ARMs need to record the result of a cpuid 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) */ |
| |
| |
| /* 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. */ |
| uint32_t OPENSSL_ia32cap_P[4] = {0}; |
| #elif defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64) |
| |
| #include <openssl/arm_arch.h> |
| |
| #if defined(OPENSSL_STATIC_ARMCAP) |
| |
| uint32_t OPENSSL_armcap_P = |
| #if defined(OPENSSL_STATIC_ARMCAP_NEON) || defined(__ARM_NEON__) |
| ARMV7_NEON | ARMV7_NEON_FUNCTIONAL | |
| #endif |
| #if defined(OPENSSL_STATIC_ARMCAP_AES) |
| ARMV8_AES | |
| #endif |
| #if defined(OPENSSL_STATIC_ARMCAP_SHA1) |
| ARMV8_SHA1 | |
| #endif |
| #if defined(OPENSSL_STATIC_ARMCAP_SHA256) |
| ARMV8_SHA256 | |
| #endif |
| #if defined(OPENSSL_STATIC_ARMCAP_PMULL) |
| ARMV8_PMULL | |
| #endif |
| 0; |
| |
| #elif defined(__ARM_NEON__) |
| uint32_t OPENSSL_armcap_P = ARMV7_NEON | ARMV7_NEON_FUNCTIONAL; |
| #else |
| uint32_t OPENSSL_armcap_P = ARMV7_NEON_FUNCTIONAL; |
| #endif |
| |
| #endif |
| |
| |
| #if defined(OPENSSL_WINDOWS) |
| #define OPENSSL_CDECL __cdecl |
| #else |
| #define OPENSSL_CDECL |
| #endif |
| |
| #if !defined(BORINGSSL_NO_STATIC_INITIALIZER) |
| #if !defined(OPENSSL_WINDOWS) |
| static void do_library_init(void) __attribute__ ((constructor)); |
| #else |
| #pragma section(".CRT$XCU", read) |
| static void __cdecl do_library_init(void); |
| __declspec(allocate(".CRT$XCU")) void(*library_init_constructor)(void) = |
| do_library_init; |
| #endif |
| #endif /* !BORINGSSL_NO_STATIC_INITIALIZER */ |
| |
| /* 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. */ |
| #if defined(BORINGSSL_NO_STATIC_INITIALIZER) |
| do_library_init(); |
| #endif |
| } |
| |
| const char *SSLeay_version(int unused) { |
| return "BoringSSL"; |
| } |
| |
| unsigned long SSLeay(void) { |
| return OPENSSL_VERSION_NUMBER; |
| } |
| |
| int CRYPTO_malloc_init(void) { |
| return 1; |
| } |
| |
| void ENGINE_load_builtin_engines(void) {} |