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Issue #1905 - Part 1 - Implement detection of Monterey (12.x), Intel emulation and fix required OS version check.

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Brian Smith 2022-05-25 18:51:46 -05:00 • committed by roytam1
commit 8cee7f2b18
3 changed files with 45 additions and 3 deletions
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43
widget/cocoa/nsCocoaFeatures.mm
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@ -26,6 +26,7 @@
#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
#include "nsCocoaFeatures.h"
#include "nsCocoaUtils.h"
@ -33,6 +34,7 @@
#include "nsObjCExceptions.h"
#import <Cocoa/Cocoa.h>
#include <sys/sysctl.h>
int32_t nsCocoaFeatures::mOSVersion = 0;
@ -196,14 +198,51 @@ nsCocoaFeatures::OnCatalinaOrLater()
/* static */ bool
nsCocoaFeatures::OnBigSurOrLater()
{
// Account for the version being 10.16 (which occurs when the
// application is linked with an older SDK) or 11.0 on Big Sur.
// 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.
// We should set 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()
{
// Monterey pretends to be 10.16 and is indistinguishable from Big Sur.
// In practice, this means that an Intel 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::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);
}