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/* 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_X86) || defined(OPENSSL_X86_64))
/* x86 and x86_64 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) */
#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) {
#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
}
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