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This discards the unresolved symbols set and returns the flags map directly
(rather than mutating it via the first argument).
The unresolved symbols result made it easy to chain lookupFlags calls, but such
chaining should be rare to non-existant (especially now that symbol resolvers
are being deprecated) so the simpler method signature is preferable.
llvm-svn: 337594
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VSOs now track dependencies for materializing symbols. Each symbol must have its
dependencies registered with the VSO prior to finalization. Usually this will
involve registering the dependencies returned in
AsynchronousSymbolQuery::ResolutionResults for queries made while linking the
symbols being materialized.
Queries against symbols are notified that a symbol is ready once it and all of
its transitive dependencies are finalized, allowing compilation work to be
broken up and moved between threads without queries returning until their
symbols fully safe to access / execute.
Related utilities (VSO, MaterializationUnit, MaterializationResponsibility) are
updated to support dependence tracking and more explicitly track responsibility
for symbols from the point of definition until they are finalized.
llvm-svn: 332541
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This makes the common case of constructing an ExecutionSession tidier.
llvm-svn: 329013
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Previously this crashed because a nullptr (returned by
createLocalIndirectStubsManagerBuilder() on platforms without
indirection support) functor was unconditionally invoked.
Patch by Andres Freund. Thanks Andres!
llvm-svn: 328687
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than a shared ObjectFile/MemoryBuffer pair.
There's no need to pre-parse the buffer into an ObjectFile before passing it
down to the linking layer, and moving the parsing into the linking layer allows
us remove the parsing code at each call site.
llvm-svn: 325725
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unified GetResources callback.
Having a single 'GetResources' callback will simplify adding new resources in
the future.
llvm-svn: 325180
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Queries need to stay alive until each owner has set the values they are
responsible for.
llvm-svn: 325179
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Handles were returned by addModule and used as keys for removeModule,
findSymbolIn, and emitAndFinalize. Their job is now subsumed by VModuleKeys,
which simplify resource management by providing a consistent handle across all
layers.
llvm-svn: 324700
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In particular this patch switches RTDyldObjectLinkingLayer to use
orc::SymbolResolver and threads the requried changse (ExecutionSession
references and VModuleKeys) through the existing layer APIs.
The purpose of the new resolver interface is to improve query performance and
better support parallelism, both in JIT'd code and within the compiler itself.
The most visibile change is switch of the <Layer>::addModule signatures from:
Expected<Handle> addModule(std::shared_ptr<ModuleType> Mod,
std::shared_ptr<JITSymbolResolver> Resolver)
to:
Expected<Handle> addModule(VModuleKey K, std::shared_ptr<ModuleType> Mod);
Typical usage of addModule will now look like:
auto K = ES.allocateVModuleKey();
Resolvers[K] = createSymbolResolver(...);
Layer.addModule(K, std::move(Mod));
See the BuildingAJIT tutorial code for example usage.
llvm-svn: 324405
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This resolver conforms to the LegacyJITSymbolResolver interface, and will be
replaced with a null-returning resolver conforming to the newer
orc::SymbolResolver interface in the near future. This patch renames the class
to avoid a clash.
llvm-svn: 324175
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This should fix some build failures on windows bots due to r314486.
llvm-svn: 314490
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/code/llvm-project/llvm/unittests/ExecutionEngine/Orc/RTDyldObjectLinkingLayerTest.cpp:260:38: error: lambda capture 'this' is not used [-Werror,-Wunused-lambda-capture]
[this](decltype(ObjLayer)::ObjHandleT,
llvm-svn: 314454
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Bug found by Stefan Granitz. Thanks Stefan!
llvm-svn: 314436
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This patch updates the ORC layers and utilities to return and propagate
llvm::Errors where appropriate. This is necessary to allow ORC to safely handle
error cases in cross-process and remote JITing.
llvm-svn: 307350
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symbol resolver argument.
De-templatizing the symbol resolver is part of the ongoing simplification of
ORC layer API.
Removing the memory management argument (and delegating construction of memory
managers for RTDyldObjectLinkingLayer to a functor passed in to the constructor)
allows us to build JITs whose base object layers need not be compatible with
RTDyldObjectLinkingLayer's memory mangement scheme. For example, a 'remote
object layer' that sends fully relocatable objects directly to the remote does
not need a memory management scheme at all (that will be handled by the remote).
llvm-svn: 307058
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move the ObjectCache from the IRCompileLayer to SimpleCompiler.
This is the first in a series of patches aimed at cleaning up and improving the
robustness and performance of the ORC APIs.
llvm-svn: 306058
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clang-format (https://reviews.llvm.org/D33932) to keep primary headers
at the top and handle new utility headers like 'gmock' consistently with
other utility headers.
No other change was made. I did no manual edits, all of this is
clang-format.
This should allow other changes to have more clear and focused diffs,
and is especially motivated by moving some headers into more focused
libraries.
llvm-svn: 304786
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frames.
RuntimeDyld was previously responsible for tracking allocated EH frames, but it
makes more sense to have the RuntimeDyld::MemoryManager track them (since the
frames are allocated through the memory manager, and written to memory owned by
the memory manager). This patch moves the frame tracking into
RTDyldMemoryManager, and changes the deregisterFrames method on
RuntimeDyld::MemoryManager from:
void deregisterEHFrames(uint8_t *Addr, uint64_t LoadAddr, size_t Size);
to:
void deregisterEHFrames();
Separating this responsibility will allow ORC to continue to throw the
RuntimeDyld instances away post-link (saving a few dozen bytes per lazy
function) while properly deregistering frames when modules are unloaded.
This patch also updates ORC to call deregisterEHFrames when modules are
unloaded. This fixes a bug where an exception that tears down the JIT can then
unwind through dangling EH frames that have been deallocated but not
deregistered, resulting in UB.
For people using SectionMemoryManager this should be pretty much a no-op. For
people with custom allocators that override registerEHFrames/deregisterEHFrames,
you will now be responsible for tracking allocated EH frames.
Reviewed in https://reviews.llvm.org/D32829
llvm-svn: 302589
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When the ProcessAllSections flag (introduced in r204398) is set RuntimeDyld is
supposed to make a call to the client's memory manager for every section in each
object that is loaded. Due to some missing checks, this was not happening in all
cases. This patch adds the missing cases, and fixes the Orc unit test that
verifies correct behavior for ProcessAllSections (The unit test had been
silently bailing out due to an ordering issue: a change in the test order meant
that this unit-test was running before the native target was registered. This
issue has also been fixed in this patch).
This fixes <rdar://problem/22789965>
llvm-svn: 299449
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The current ObjectLinkingLayer (now RTDyldObjectLinkingLayer) links objects
in-process using MCJIT's RuntimeDyld class. In the near future I hope to add new
object linking layers (e.g. a remote linking layer that links objects in the JIT
target process, rather than the client), so I'm renaming this class to be more
descriptive.
llvm-svn: 295636
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