61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
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/* Copyright (c) 2014, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include <openssl/crypto.h>
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#include "internal.h"
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/* Currently, the only configurations which require a static initializer are x86
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* and x86_64. Don't bother emitting one in other cases. */
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#if !defined(OPENSSL_X86) && !defined(OPENSSL_X86_64) && \
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!defined(BORINGSSL_NO_STATIC_INITIALIZER)
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#define BORINGSSL_NO_STATIC_INITIALIZER
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#endif
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#if defined(OPENSSL_WINDOWS)
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#define OPENSSL_CDECL __cdecl
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#else
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#define OPENSSL_CDECL
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#endif
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#if !defined(BORINGSSL_NO_STATIC_INITIALIZER)
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#if !defined(OPENSSL_WINDOWS)
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static void do_library_init(void) __attribute__ ((constructor));
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#else
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#pragma section(".CRT$XCU", read)
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static void __cdecl do_library_init(void);
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__declspec(allocate(".CRT$XCU")) void(*library_init_constructor)(void) =
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do_library_init;
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#endif
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#endif /* !BORINGSSL_NO_STATIC_INITIALIZER */
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/* do_library_init is the actual initialization function. If
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* BORINGSSL_NO_STATIC_INITIALIZER isn't defined, this is set as a static
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* initializer. Otherwise, it is called by CRYPTO_library_init. */
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static void OPENSSL_CDECL do_library_init(void) {
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#if defined(OPENSSL_X86) || defined(OPENSSL_X86_64)
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OPENSSL_cpuid_setup();
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#endif
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}
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void CRYPTO_library_init(void) {
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/* TODO(davidben): It would be tidier if this build knob could be replaced
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* with an internal lazy-init mechanism that would handle things correctly
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* in-library. */
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#if defined(BORINGSSL_NO_STATIC_INITIALIZER)
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do_library_init();
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#endif
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}
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