forked from osmocom/wireshark
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/* cpu_info.c
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* Routines to report CPU information
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <string.h>
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#include <glib.h>
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#include <wsutil/ws_cpuid.h>
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#include <wsutil/cpu_info.h>
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/*
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* Get the CPU info, and append it to the GString
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*/
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void
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get_cpu_info(GString *str)
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{
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guint32 CPUInfo[4];
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char CPUBrandString[0x40];
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unsigned nExIds;
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/* https://docs.microsoft.com/en-us/cpp/intrinsics/cpuid-cpuidex */
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/* Calling __cpuid with 0x80000000 as the InfoType argument */
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/* gets the number of valid extended IDs. */
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if (!ws_cpuid(CPUInfo, 0x80000000))
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return;
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nExIds = CPUInfo[0];
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if (nExIds<0x80000005)
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return;
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memset(CPUBrandString, 0, sizeof(CPUBrandString));
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/* Interpret CPU brand string */
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ws_cpuid(CPUInfo, 0x80000002);
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memcpy(CPUBrandString, CPUInfo, sizeof(CPUInfo));
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ws_cpuid(CPUInfo, 0x80000003);
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memcpy(CPUBrandString + 16, CPUInfo, sizeof(CPUInfo));
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ws_cpuid(CPUInfo, 0x80000004);
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memcpy(CPUBrandString + 32, CPUInfo, sizeof(CPUInfo));
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if (str->len > 0)
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g_string_append(str, ", with ");
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g_string_append_printf(str, "%s", g_strstrip(CPUBrandString));
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if (ws_cpuid_sse42())
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g_string_append(str, " (with SSE4.2)");
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}
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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