darling-bmalloc/bmalloc/ProcessCheck.mm
2023-04-27 08:59:12 -07:00

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/*
* Copyright (C) 2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "ProcessCheck.h"
#import <Foundation/Foundation.h>
#import <mutex>
namespace bmalloc {
#if !BPLATFORM(WATCHOS)
bool gigacageEnabledForProcess()
{
// Note that this function is only called once.
// If we wanted to make it efficient to call more than once, we could memoize the result in a global boolean.
NSString *appName = [[NSBundle mainBundle] bundleIdentifier];
if (appName) {
bool isWebProcess = [appName hasPrefix:@"com.apple.WebKit.WebContent"];
return isWebProcess;
}
NSString *processName = [[NSProcessInfo processInfo] processName];
bool isOptInBinary = [processName isEqualToString:@"jsc"]
|| [processName isEqualToString:@"DumpRenderTree"]
|| [processName isEqualToString:@"wasm"]
|| [processName hasPrefix:@"test"]
|| [processName hasPrefix:@"Test"];
return isOptInBinary;
}
#endif // !BPLATFORM(WATCHOS)
#if BPLATFORM(IOS_FAMILY)
bool shouldProcessUnconditionallyUseBmalloc()
{
static bool result;
static std::once_flag onceFlag;
std::call_once(onceFlag, [&] () {
if (NSString *appName = [[NSBundle mainBundle] bundleIdentifier]) {
auto contains = [&] (NSString *string) {
return [appName rangeOfString:string options:NSCaseInsensitiveSearch].location != NSNotFound;
};
result = contains(@"com.apple.WebKit") || contains(@"safari");
} else {
NSString *processName = [[NSProcessInfo processInfo] processName];
result = [processName isEqualToString:@"jsc"]
|| [processName isEqualToString:@"wasm"]
|| [processName hasPrefix:@"test"];
}
});
return result;
}
#endif // BPLATFORM(IOS_FAMILY)
}