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dc88e51321
Provides a new fallback for Process arguments for those instances where we do not own main (e.g. Frameworks, Objective-C owns main.m or main.c, etc.). This includes a number of platform-specific specializations of argument grabbing logic and a new thread-safe interface to Process.unsafeArgv. main() | _NSGetArgc/_NSGetArgv | /proc/self/cmdline | __argc/__argv --------|--------------------------|------------------------|--------------- Scripts | OS X, iOS, tvOS, watchOS | Linux, FreeBSD, Cygwin | Windows For interpreted Swift where we must filter out the arguments we now do so by loading the standard library and calling into new SPI to override the arguments that would have been grabbed by the runtime. This implementation completely subsumes the use of the entry point '_stdlib_didEnterMain' and it will be removed in a future commit.
50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
//===--- GlobalObjects.cpp - Statically-initialized objects ---------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Objects that are allocated at global scope instead of on the heap,
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// and statically initialized to avoid synchronization costs, are
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// defined here.
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//
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//===----------------------------------------------------------------------===//
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#include "../SwiftShims/GlobalObjects.h"
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#include "swift/Runtime/Metadata.h"
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namespace swift {
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// FIXME(ABI): does this declaration need SWIFT_RUNTIME_STDLIB_INTERFACE?
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// _direct type metadata for Swift._EmptyArrayStorage
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SWIFT_RUNTIME_STDLIB_INTERFACE
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extern "C" ClassMetadata _TMCs18_EmptyArrayStorage;
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}
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swift::_SwiftEmptyArrayStorage swift::_swiftEmptyArrayStorage = {
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// HeapObject header;
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{
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&_TMCs18_EmptyArrayStorage, // isa pointer
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},
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// _SwiftArrayBodyStorage body;
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{
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0, // int count;
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1 // unsigned int _capacityAndFlags; 1 means elementTypeIsBridgedVerbatim
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}
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};
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__swift_uint64_t swift::_swift_stdlib_HashingDetail_fixedSeedOverride = 0;
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namespace llvm { namespace hashing { namespace detail {
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// An extern variable expected by LLVM's hashing templates. We don't link any
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// LLVM libs into the runtime, so define this here.
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size_t fixed_seed_override = 0;
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} } }
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