media/libvpx/vpx_ports/x86_cpuid.c@ac0c01689b40
media/libvpx/vpx_ports/x86_cpuid.c
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 /*
2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
11 #include <string.h>
12 #include "x86.h"
14 struct cpuid_vendors {
15 char vendor_string[12];
16 vpx_cpu_t vendor_id;
17 };
19 static struct cpuid_vendors cpuid_vendor_list[VPX_CPU_LAST] = {
20 { "AuthenticAMD", VPX_CPU_AMD },
21 { "AMDisbetter!", VPX_CPU_AMD_OLD },
22 { "CentaurHauls", VPX_CPU_CENTAUR },
23 { "CyrixInstead", VPX_CPU_CYRIX },
24 { "GenuineIntel", VPX_CPU_INTEL },
25 { "NexGenDriven", VPX_CPU_NEXGEN },
26 { "Geode by NSC", VPX_CPU_NSC },
27 { "RiseRiseRise", VPX_CPU_RISE },
28 { "SiS SiS SiS ", VPX_CPU_SIS },
29 { "GenuineTMx86", VPX_CPU_TRANSMETA },
30 { "TransmetaCPU", VPX_CPU_TRANSMETA_OLD },
31 { "UMC UMC UMC ", VPX_CPU_UMC },
32 { "VIA VIA VIA ", VPX_CPU_VIA },
33 };
35 vpx_cpu_t vpx_x86_vendor(void) {
36 unsigned int reg_eax;
37 unsigned int vs[3];
38 int i;
40 /* Get the Vendor String from the CPU */
41 cpuid(0, reg_eax, vs[0], vs[2], vs[1]);
43 for (i = 0; i < VPX_CPU_LAST; i++) {
44 if (strncmp((const char *)vs, cpuid_vendor_list[i].vendor_string, 12) == 0)
45 return (cpuid_vendor_list[i].vendor_id);
46 }
48 return VPX_CPU_UNKNOWN;
49 }
