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214 lines
8.7 KiB
214 lines
8.7 KiB
4 months ago
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/*===----------- llvm-c/LLJIT.h - OrcV2 LLJIT C bindings --------*- C++ -*-===*\
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|* *|
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|* Part of the LLVM Project, under the Apache License v2.0 with LLVM *|
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|* Exceptions. *|
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|* See https://llvm.org/LICENSE.txt for license information. *|
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|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *|
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|* *|
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|*===----------------------------------------------------------------------===*|
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|* *|
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|* This header declares the C interface to the LLJIT class in *|
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|* libLLVMOrcJIT.a, which provides a simple MCJIT-like ORC JIT. *|
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|* *|
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|* Many exotic languages can interoperate with C code but have a harder time *|
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|* with C++ due to name mangling. So in addition to C, this interface enables *|
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|* tools written in such languages. *|
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|* *|
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|* Note: This interface is experimental. It is *NOT* stable, and may be *|
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|* changed without warning. Only C API usage documentation is *|
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|* provided. See the C++ documentation for all higher level ORC API *|
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|* details. *|
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|* *|
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\*===----------------------------------------------------------------------===*/
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#ifndef LLVM_C_LLJIT_H
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#define LLVM_C_LLJIT_H
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#include "llvm-c/Error.h"
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#include "llvm-c/Orc.h"
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#include "llvm-c/TargetMachine.h"
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#include "llvm-c/Types.h"
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LLVM_C_EXTERN_C_BEGIN
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/**
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* A function for constructing an ObjectLinkingLayer instance to be used
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* by an LLJIT instance.
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*
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* Clients can call LLVMOrcLLJITBuilderSetObjectLinkingLayerCreator to
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* set the creator function to use when constructing an LLJIT instance.
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* This can be used to override the default linking layer implementation
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* that would otherwise be chosen by LLJITBuilder.
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*
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* Object linking layers returned by this function will become owned by the
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* LLJIT instance. The client is not responsible for managing their lifetimes
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* after the function returns.
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*/
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typedef LLVMOrcObjectLayerRef (
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*LLVMOrcLLJITBuilderObjectLinkingLayerCreatorFunction)(
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void *Ctx, LLVMOrcExecutionSessionRef ES, const char *Triple);
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/**
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* A reference to an orc::LLJITBuilder instance.
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*/
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typedef struct LLVMOrcOpaqueLLJITBuilder *LLVMOrcLLJITBuilderRef;
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/**
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* A reference to an orc::LLJIT instance.
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*/
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typedef struct LLVMOrcOpaqueLLJIT *LLVMOrcLLJITRef;
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/**
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* Create an LLVMOrcLLJITBuilder.
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*
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* The client owns the resulting LLJITBuilder and should dispose of it using
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* LLVMOrcDisposeLLJITBuilder once they are done with it.
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*/
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LLVMOrcLLJITBuilderRef LLVMOrcCreateLLJITBuilder(void);
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/**
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* Dispose of an LLVMOrcLLJITBuilderRef. This should only be called if ownership
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* has not been passed to LLVMOrcCreateLLJIT (e.g. because some error prevented
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* that function from being called).
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*/
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void LLVMOrcDisposeLLJITBuilder(LLVMOrcLLJITBuilderRef Builder);
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/**
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* Set the JITTargetMachineBuilder to be used when constructing the LLJIT
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* instance. Calling this function is optional: if it is not called then the
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* LLJITBuilder will use JITTargeTMachineBuilder::detectHost to construct a
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* JITTargetMachineBuilder.
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*/
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void LLVMOrcLLJITBuilderSetJITTargetMachineBuilder(
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LLVMOrcLLJITBuilderRef Builder, LLVMOrcJITTargetMachineBuilderRef JTMB);
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/**
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* Set an ObjectLinkingLayer creator function for this LLJIT instance.
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*/
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void LLVMOrcLLJITBuilderSetObjectLinkingLayerCreator(
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LLVMOrcLLJITBuilderRef Builder,
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LLVMOrcLLJITBuilderObjectLinkingLayerCreatorFunction F, void *Ctx);
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/**
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* Create an LLJIT instance from an LLJITBuilder.
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*
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* This operation takes ownership of the Builder argument: clients should not
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* dispose of the builder after calling this function (even if the function
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* returns an error). If a null Builder argument is provided then a
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* default-constructed LLJITBuilder will be used.
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*
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* On success the resulting LLJIT instance is uniquely owned by the client and
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* automatically manages the memory of all JIT'd code and all modules that are
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* transferred to it (e.g. via LLVMOrcLLJITAddLLVMIRModule). Disposing of the
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* LLJIT instance will free all memory managed by the JIT, including JIT'd code
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* and not-yet compiled modules.
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*/
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LLVMErrorRef LLVMOrcCreateLLJIT(LLVMOrcLLJITRef *Result,
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LLVMOrcLLJITBuilderRef Builder);
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/**
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* Dispose of an LLJIT instance.
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*/
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LLVMErrorRef LLVMOrcDisposeLLJIT(LLVMOrcLLJITRef J);
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/**
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* Get a reference to the ExecutionSession for this LLJIT instance.
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*
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* The ExecutionSession is owned by the LLJIT instance. The client is not
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* responsible for managing its memory.
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*/
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LLVMOrcExecutionSessionRef LLVMOrcLLJITGetExecutionSession(LLVMOrcLLJITRef J);
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/**
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* Return a reference to the Main JITDylib.
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*
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* The JITDylib is owned by the LLJIT instance. The client is not responsible
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* for managing its memory.
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*/
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LLVMOrcJITDylibRef LLVMOrcLLJITGetMainJITDylib(LLVMOrcLLJITRef J);
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/**
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* Return the target triple for this LLJIT instance. This string is owned by
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* the LLJIT instance and should not be freed by the client.
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*/
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const char *LLVMOrcLLJITGetTripleString(LLVMOrcLLJITRef J);
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/**
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* Returns the global prefix character according to the LLJIT's DataLayout.
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*/
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char LLVMOrcLLJITGetGlobalPrefix(LLVMOrcLLJITRef J);
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/**
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* Mangles the given string according to the LLJIT instance's DataLayout, then
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* interns the result in the SymbolStringPool and returns a reference to the
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* pool entry. Clients should call LLVMOrcReleaseSymbolStringPoolEntry to
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* decrement the ref-count on the pool entry once they are finished with this
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* value.
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*/
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LLVMOrcSymbolStringPoolEntryRef
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LLVMOrcLLJITMangleAndIntern(LLVMOrcLLJITRef J, const char *UnmangledName);
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/**
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* Add a buffer representing an object file to the given JITDylib in the given
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* LLJIT instance. This operation transfers ownership of the buffer to the
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* LLJIT instance. The buffer should not be disposed of or referenced once this
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* function returns.
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*
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* Resources associated with the given object will be tracked by the given
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* JITDylib's default resource tracker.
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*/
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LLVMErrorRef LLVMOrcLLJITAddObjectFile(LLVMOrcLLJITRef J, LLVMOrcJITDylibRef JD,
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LLVMMemoryBufferRef ObjBuffer);
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/**
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* Add a buffer representing an object file to the given ResourceTracker's
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* JITDylib in the given LLJIT instance. This operation transfers ownership of
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* the buffer to the LLJIT instance. The buffer should not be disposed of or
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* referenced once this function returns.
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*
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* Resources associated with the given object will be tracked by ResourceTracker
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* RT.
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*/
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LLVMErrorRef LLVMOrcLLJITAddObjectFileWithRT(LLVMOrcLLJITRef J,
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LLVMOrcResourceTrackerRef RT,
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LLVMMemoryBufferRef ObjBuffer);
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/**
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* Add an IR module to the given JITDylib in the given LLJIT instance. This
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* operation transfers ownership of the TSM argument to the LLJIT instance.
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* The TSM argument should not be disposed of or referenced once this
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* function returns.
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*
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* Resources associated with the given Module will be tracked by the given
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* JITDylib's default resource tracker.
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*/
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LLVMErrorRef LLVMOrcLLJITAddLLVMIRModule(LLVMOrcLLJITRef J,
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LLVMOrcJITDylibRef JD,
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LLVMOrcThreadSafeModuleRef TSM);
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/**
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* Add an IR module to the given ResourceTracker's JITDylib in the given LLJIT
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* instance. This operation transfers ownership of the TSM argument to the LLJIT
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* instance. The TSM argument should not be disposed of or referenced once this
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* function returns.
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*
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* Resources associated with the given Module will be tracked by ResourceTracker
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* RT.
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*/
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LLVMErrorRef LLVMOrcLLJITAddLLVMIRModuleWithRT(LLVMOrcLLJITRef J,
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LLVMOrcResourceTrackerRef JD,
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LLVMOrcThreadSafeModuleRef TSM);
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/**
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* Look up the given symbol in the main JITDylib of the given LLJIT instance.
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*
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* This operation does not take ownership of the Name argument.
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*/
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LLVMErrorRef LLVMOrcLLJITLookup(LLVMOrcLLJITRef J,
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LLVMOrcJITTargetAddress *Result,
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const char *Name);
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LLVM_C_EXTERN_C_END
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#endif /* LLVM_C_LLJIT_H */
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