1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
// This file makes some assumptions about the versions of macOS.
// We are assuming that the major, minor and bugfix versions are each less than
// 256.
// There are MOZ_ASSERTs for that.
// The formula for the version integer is (major << 16) + (minor << 8) + bugfix.
#define MACOS_VERSION_MASK 0x00FFFFFF
#define MACOS_MAJOR_VERSION_MASK 0x00FFFFFF
#define MACOS_MINOR_VERSION_MASK 0x00FFFFFF
#define MACOS_BUGFIX_VERSION_MASK 0x00FFFFFF
#define MACOS_VERSION_10_0_HEX 0x000A0000
#define MACOS_VERSION_10_9_HEX 0x000A0900
#define MACOS_VERSION_10_10_HEX 0x000A0A00
#define MACOS_VERSION_10_11_HEX 0x000A0B00
#define MACOS_VERSION_10_12_HEX 0x000A0C00
#define MACOS_VERSION_10_13_HEX 0x000A0D00
#define MACOS_VERSION_10_14_HEX 0x000A0E00
#define MACOS_VERSION_10_15_HEX 0x000A0F00
#define MACOS_VERSION_10_16_HEX 0x000A1000
#define MACOS_VERSION_11_0_HEX 0x000B0000
#define MACOS_VERSION_12_0_HEX 0x000C0000
#define MACOS_VERSION_13_0_HEX 0x000D0000
#include "nsCocoaFeatures.h"
#include "nsCocoaUtils.h"
#include "nsDebug.h"
#include "nsObjCExceptions.h"
#import <Cocoa/Cocoa.h>
#include <sys/sysctl.h>
/*static*/ int32_t nsCocoaFeatures::mOSVersion = 0;
// This should not be called with unchecked aMajor, which should be >= 10.
inline int32_t AssembleVersion(int32_t aMajor, int32_t aMinor,
int32_t aBugFix) {
MOZ_ASSERT(aMajor >= 10);
return (aMajor << 16) + (aMinor << 8) + aBugFix;
}
int32_t nsCocoaFeatures::ExtractMajorVersion(int32_t aVersion) {
MOZ_ASSERT((aVersion & MACOS_VERSION_MASK) == aVersion);
return (aVersion & 0xFF0000) >> 16;
}
int32_t nsCocoaFeatures::ExtractMinorVersion(int32_t aVersion) {
MOZ_ASSERT((aVersion & MACOS_VERSION_MASK) == aVersion);
return (aVersion & 0xFF00) >> 8;
}
int32_t nsCocoaFeatures::ExtractBugFixVersion(int32_t aVersion) {
MOZ_ASSERT((aVersion & MACOS_VERSION_MASK) == aVersion);
return aVersion & 0xFF;
}
static int intAtStringIndex(NSArray* array, int index) {
return [(NSString*)[array objectAtIndex:index] integerValue];
}
void nsCocoaFeatures::GetSystemVersion(int& major, int& minor, int& bugfix) {
major = minor = bugfix = 0;
NSString* versionString =
[[NSDictionary dictionaryWithContentsOfFile:
@"/System/Library/CoreServices/SystemVersion.plist"]
objectForKey:@"ProductVersion"];
if (!versionString) {
NS_ERROR("Couldn't read /System/Library/CoreServices/SystemVersion.plist "
"to determine macOS "
"version.");
return;
}
NSArray* versions = [versionString componentsSeparatedByString:@"."];
NSUInteger count = [versions count];
if (count > 0) {
major = intAtStringIndex(versions, 0);
if (count > 1) {
minor = intAtStringIndex(versions, 1);
if (count > 2) {
bugfix = intAtStringIndex(versions, 2);
}
}
}
}
int32_t nsCocoaFeatures::GetVersion(int32_t aMajor, int32_t aMinor,
int32_t aBugFix) {
int32_t macOSVersion;
if (aMajor < 10) {
aMajor = 10;
NS_ERROR("Couldn't determine macOS version, assuming 10.9");
macOSVersion = MACOS_VERSION_10_9_HEX;
} else if (aMajor == 10 && aMinor < 9) {
aMinor = 9;
NS_ERROR("macOS version too old, assuming 10.9");
macOSVersion = MACOS_VERSION_10_9_HEX;
} else {
MOZ_ASSERT(aMajor >= 10);
MOZ_ASSERT(aMajor < 256);
MOZ_ASSERT(aMinor >= 0);
MOZ_ASSERT(aMinor < 256);
MOZ_ASSERT(aBugFix >= 0);
MOZ_ASSERT(aBugFix < 256);
macOSVersion = AssembleVersion(aMajor, aMinor, aBugFix);
}
MOZ_ASSERT(aMajor == ExtractMajorVersion(macOSVersion));
MOZ_ASSERT(aMinor == ExtractMinorVersion(macOSVersion));
MOZ_ASSERT(aBugFix == ExtractBugFixVersion(macOSVersion));
return macOSVersion;
}
/*static*/ void nsCocoaFeatures::InitializeVersionNumbers() {
NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
// Provide an autorelease pool to avoid leaking Cocoa objects,
// as this gets called before the main autorelease pool is in place.
nsAutoreleasePool localPool;
int major, minor, bugfix;
GetSystemVersion(major, minor, bugfix);
mOSVersion = GetVersion(major, minor, bugfix);
NS_OBJC_END_TRY_IGNORE_BLOCK;
}
/* static */ int32_t nsCocoaFeatures::macOSVersion() {
// Don't let this be called while we're first setting the value...
MOZ_ASSERT((mOSVersion & MACOS_VERSION_MASK) >= 0);
if (!mOSVersion) {
mOSVersion = -1;
InitializeVersionNumbers();
}
return mOSVersion;
}
/* static */ int32_t nsCocoaFeatures::macOSVersionMajor() {
return ExtractMajorVersion(macOSVersion());
}
/* static */ int32_t nsCocoaFeatures::macOSVersionMinor() {
return ExtractMinorVersion(macOSVersion());
}
/* static */ int32_t nsCocoaFeatures::macOSVersionBugFix() {
return ExtractBugFixVersion(macOSVersion());
}
/* static */ bool nsCocoaFeatures::OnBigSurOrLater() {
// Account for the version being 10.16 or 11.0 on Big Sur.
// The version is reported as 10.16 if SYSTEM_VERSION_COMPAT is set to 1,
// or if SYSTEM_VERSION_COMPAT is not set and the application is linked
// with a pre-Big Sur SDK.
// Firefox sets SYSTEM_VERSION_COMPAT to 0 in its Info.plist, so it'll
// usually see the correct 11.* version, despite being linked against an
// old SDK. However, it still sees the 10.16 compatibility version when
// launched from the command line, see bug 1727624. (This only applies to
// the Intel build - the arm64 build is linked against a Big Sur SDK and
// always sees the correct version.)
return ((macOSVersion() >= MACOS_VERSION_10_16_HEX) ||
(macOSVersion() >= MACOS_VERSION_11_0_HEX));
}
/* static */ bool nsCocoaFeatures::OnMontereyOrLater() {
// This check only works if SYSTEM_VERSION_COMPAT is off, otherwise
// Monterey pretends to be 10.16 and is indistinguishable from Big Sur.
// In practice, this means that an Intel Firefox build can return false
// from this function if it's launched from the command line, see bug 1727624.
// This will not be an issue anymore once we link against the Big Sur SDK.
return (macOSVersion() >= MACOS_VERSION_12_0_HEX);
}
/* static */ bool nsCocoaFeatures::OnVenturaOrLater() {
// See comments above regarding SYSTEM_VERSION_COMPAT.
return (macOSVersion() >= MACOS_VERSION_13_0_HEX);
}
/* static */ bool nsCocoaFeatures::IsAtLeastVersion(int32_t aMajor,
int32_t aMinor,
int32_t aBugFix) {
return macOSVersion() >= GetVersion(aMajor, aMinor, aBugFix);
}
/*
* Returns true if the process is running under Rosetta translation. Returns
* false if running natively or if an error was encountered. We use the
* `sysctl.proc_translated` sysctl which is documented by Apple to be used
* for this purpose. Note: using this in a sandboxed process requires allowing
* the sysctl in the sandbox policy.
*/
/* static */ bool nsCocoaFeatures::ProcessIsRosettaTranslated() {
int ret = 0;
size_t size = sizeof(ret);
if (sysctlbyname("sysctl.proc_translated", &ret, &size, NULL, 0) == -1) {
if (errno != ENOENT) {
fprintf(stderr, "Failed to check for translation environment\n");
}
return false;
}
return (ret == 1);
}
|
