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f1200209c6
managers. Prior to this patch, recursive finalization (where finalization of one RuntimeDyld instance triggers finalization of another instance on which the first depends) could trigger memory access failures: When the inner (dependent) RuntimeDyld instance and its memory manager are finalized, memory allocated (but not yet relocated) by the outer instance is locked, and relocation in the outer instance fails with a memory access error. This patch adds a latch to the RuntimeDyld::MemoryManager base class that is checked by a new method: RuntimeDyld::finalizeWithMemoryManagerLocking, ensuring that shared memory managers are only finalized by the outermost RuntimeDyld instance. This allows ORC clients to supply the same memory manager to multiple calls to addModuleSet. In particular it enables the use of user-supplied memory managers with the CompileOnDemandLayer which must reuse the supplied memory manager for each function that is lazily compiled. llvm-svn: 257263
26 lines
780 B
C++
26 lines
780 B
C++
//===--------- OrcTestCommon.cpp - Utilities for Orc Unit Tests -----------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// Common utilities for Orc unit tests.
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//
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//===----------------------------------------------------------------------===//
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#include "OrcTestCommon.h"
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using namespace llvm;
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bool OrcExecutionTest::NativeTargetInitialized = false;
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ModuleBuilder::ModuleBuilder(LLVMContext &Context, StringRef Triple,
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StringRef Name)
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: M(new Module(Name, Context)) {
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if (Triple != "")
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M->setTargetTriple(Triple);
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}
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