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/* cpu_info.c
* Routines to report CPU information
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <string.h>
#include <glib.h>
#include <wsutil/ws_cpuid.h>
#include <wsutil/cpu_info.h>
/*
* Get the CPU info, and append it to the GString
*/
void
get_cpu_info(GString *str)
{
guint32 CPUInfo[4];
char CPUBrandString[0x40];
unsigned nExIds;
/* http://msdn.microsoft.com/en-us/library/hskdteyh(v=vs.100).aspx */
/* Calling __cpuid with 0x80000000 as the InfoType argument */
/* gets the number of valid extended IDs. */
if (!ws_cpuid(CPUInfo, 0x80000000))
return;
nExIds = CPUInfo[0];
if (nExIds<0x80000005)
return;
memset(CPUBrandString, 0, sizeof(CPUBrandString));
/* Interpret CPU brand string */
ws_cpuid(CPUInfo, 0x80000002);
memcpy(CPUBrandString, CPUInfo, sizeof(CPUInfo));
ws_cpuid(CPUInfo, 0x80000003);
memcpy(CPUBrandString + 16, CPUInfo, sizeof(CPUInfo));
ws_cpuid(CPUInfo, 0x80000004);
memcpy(CPUBrandString + 32, CPUInfo, sizeof(CPUInfo));
if (str->len > 0)
g_string_append(str, ", with ");
g_string_append_printf(str, "%s", CPUBrandString);
if (ws_cpuid_sse42())
g_string_append(str, " (with SSE4.2)");
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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