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49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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This file is part of Mtproto-proxy Library.
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Mtproto-proxy Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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Mtproto-proxy Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with Mtproto-proxy Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2014 Telegram Messenger Inc
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2014 Anton Maydell
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*/
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#include <assert.h>
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#include <cpuid.h>
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#include "cpuid.h"
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#define CPUID_MAGIC 0x280147b8
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kdb_cpuid_t *kdb_cpuid (void) {
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static kdb_cpuid_t cached = { .magic = 0 };
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if (cached.magic) {
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assert (cached.magic == CPUID_MAGIC);
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return &cached;
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}
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unsigned int a;
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assert(
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__get_cpuid(1,
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&a,
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(unsigned int*) &cached.ebx,
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(unsigned int*) &cached.ecx,
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(unsigned int*) &cached.edx
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) != 0
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);
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cached.magic = CPUID_MAGIC;
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return &cached;
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}
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