ExecutionEngine.h
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/*===-- llvm-c/ExecutionEngine.h - ExecutionEngine Lib C Iface --*- C++ -*-===*\
|* *|
|* Part of the LLVM Project, under the Apache License v2.0 with LLVM *|
|* Exceptions. *|
|* See https://llvm.org/LICENSE.txt for license information. *|
|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This header declares the C interface to libLLVMExecutionEngine.o, which *|
|* implements various analyses of the LLVM IR. *|
|* *|
|* Many exotic languages can interoperate with C code but have a harder time *|
|* with C++ due to name mangling. So in addition to C, this interface enables *|
|* tools written in such languages. *|
|* *|
\*===----------------------------------------------------------------------===*/
#ifndef LLVM_C_EXECUTIONENGINE_H
#define LLVM_C_EXECUTIONENGINE_H
#include "llvm-c/ExternC.h"
#include "llvm-c/Target.h"
#include "llvm-c/TargetMachine.h"
#include "llvm-c/Types.h"
LLVM_C_EXTERN_C_BEGIN
/**
* @defgroup LLVMCExecutionEngine Execution Engine
* @ingroup LLVMC
*
* @{
*/
void LLVMLinkInMCJIT(void);
void LLVMLinkInInterpreter(void);
typedef struct LLVMOpaqueGenericValue *LLVMGenericValueRef;
typedef struct LLVMOpaqueExecutionEngine *LLVMExecutionEngineRef;
typedef struct LLVMOpaqueMCJITMemoryManager *LLVMMCJITMemoryManagerRef;
struct LLVMMCJITCompilerOptions {
unsigned OptLevel;
LLVMCodeModel CodeModel;
LLVMBool NoFramePointerElim;
LLVMBool EnableFastISel;
LLVMMCJITMemoryManagerRef MCJMM;
};
/*===-- Operations on generic values --------------------------------------===*/
LLVMGenericValueRef LLVMCreateGenericValueOfInt(LLVMTypeRef Ty,
unsigned long long N,
LLVMBool IsSigned);
LLVMGenericValueRef LLVMCreateGenericValueOfPointer(void *P);
LLVMGenericValueRef LLVMCreateGenericValueOfFloat(LLVMTypeRef Ty, double N);
unsigned LLVMGenericValueIntWidth(LLVMGenericValueRef GenValRef);
unsigned long long LLVMGenericValueToInt(LLVMGenericValueRef GenVal,
LLVMBool IsSigned);
void *LLVMGenericValueToPointer(LLVMGenericValueRef GenVal);
double LLVMGenericValueToFloat(LLVMTypeRef TyRef, LLVMGenericValueRef GenVal);
void LLVMDisposeGenericValue(LLVMGenericValueRef GenVal);
/*===-- Operations on execution engines -----------------------------------===*/
LLVMBool LLVMCreateExecutionEngineForModule(LLVMExecutionEngineRef *OutEE,
LLVMModuleRef M,
char **OutError);
LLVMBool LLVMCreateInterpreterForModule(LLVMExecutionEngineRef *OutInterp,
LLVMModuleRef M,
char **OutError);
LLVMBool LLVMCreateJITCompilerForModule(LLVMExecutionEngineRef *OutJIT,
LLVMModuleRef M,
unsigned OptLevel,
char **OutError);
void LLVMInitializeMCJITCompilerOptions(
struct LLVMMCJITCompilerOptions *Options, size_t SizeOfOptions);
/**
* Create an MCJIT execution engine for a module, with the given options. It is
* the responsibility of the caller to ensure that all fields in Options up to
* the given SizeOfOptions are initialized. It is correct to pass a smaller
* value of SizeOfOptions that omits some fields. The canonical way of using
* this is:
*
* LLVMMCJITCompilerOptions options;
* LLVMInitializeMCJITCompilerOptions(&options, sizeof(options));
* ... fill in those options you care about
* LLVMCreateMCJITCompilerForModule(&jit, mod, &options, sizeof(options),
* &error);
*
* Note that this is also correct, though possibly suboptimal:
*
* LLVMCreateMCJITCompilerForModule(&jit, mod, 0, 0, &error);
*/
LLVMBool LLVMCreateMCJITCompilerForModule(
LLVMExecutionEngineRef *OutJIT, LLVMModuleRef M,
struct LLVMMCJITCompilerOptions *Options, size_t SizeOfOptions,
char **OutError);
void LLVMDisposeExecutionEngine(LLVMExecutionEngineRef EE);
void LLVMRunStaticConstructors(LLVMExecutionEngineRef EE);
void LLVMRunStaticDestructors(LLVMExecutionEngineRef EE);
int LLVMRunFunctionAsMain(LLVMExecutionEngineRef EE, LLVMValueRef F,
unsigned ArgC, const char * const *ArgV,
const char * const *EnvP);
LLVMGenericValueRef LLVMRunFunction(LLVMExecutionEngineRef EE, LLVMValueRef F,
unsigned NumArgs,
LLVMGenericValueRef *Args);
void LLVMFreeMachineCodeForFunction(LLVMExecutionEngineRef EE, LLVMValueRef F);
void LLVMAddModule(LLVMExecutionEngineRef EE, LLVMModuleRef M);
LLVMBool LLVMRemoveModule(LLVMExecutionEngineRef EE, LLVMModuleRef M,
LLVMModuleRef *OutMod, char **OutError);
LLVMBool LLVMFindFunction(LLVMExecutionEngineRef EE, const char *Name,
LLVMValueRef *OutFn);
void *LLVMRecompileAndRelinkFunction(LLVMExecutionEngineRef EE,
LLVMValueRef Fn);
LLVMTargetDataRef LLVMGetExecutionEngineTargetData(LLVMExecutionEngineRef EE);
LLVMTargetMachineRef
LLVMGetExecutionEngineTargetMachine(LLVMExecutionEngineRef EE);
void LLVMAddGlobalMapping(LLVMExecutionEngineRef EE, LLVMValueRef Global,
void* Addr);
void *LLVMGetPointerToGlobal(LLVMExecutionEngineRef EE, LLVMValueRef Global);
uint64_t LLVMGetGlobalValueAddress(LLVMExecutionEngineRef EE, const char *Name);
uint64_t LLVMGetFunctionAddress(LLVMExecutionEngineRef EE, const char *Name);
/*===-- Operations on memory managers -------------------------------------===*/
typedef uint8_t *(*LLVMMemoryManagerAllocateCodeSectionCallback)(
void *Opaque, uintptr_t Size, unsigned Alignment, unsigned SectionID,
const char *SectionName);
typedef uint8_t *(*LLVMMemoryManagerAllocateDataSectionCallback)(
void *Opaque, uintptr_t Size, unsigned Alignment, unsigned SectionID,
const char *SectionName, LLVMBool IsReadOnly);
typedef LLVMBool (*LLVMMemoryManagerFinalizeMemoryCallback)(
void *Opaque, char **ErrMsg);
typedef void (*LLVMMemoryManagerDestroyCallback)(void *Opaque);
/**
* Create a simple custom MCJIT memory manager. This memory manager can
* intercept allocations in a module-oblivious way. This will return NULL
* if any of the passed functions are NULL.
*
* @param Opaque An opaque client object to pass back to the callbacks.
* @param AllocateCodeSection Allocate a block of memory for executable code.
* @param AllocateDataSection Allocate a block of memory for data.
* @param FinalizeMemory Set page permissions and flush cache. Return 0 on
* success, 1 on error.
*/
LLVMMCJITMemoryManagerRef LLVMCreateSimpleMCJITMemoryManager(
void *Opaque,
LLVMMemoryManagerAllocateCodeSectionCallback AllocateCodeSection,
LLVMMemoryManagerAllocateDataSectionCallback AllocateDataSection,
LLVMMemoryManagerFinalizeMemoryCallback FinalizeMemory,
LLVMMemoryManagerDestroyCallback Destroy);
void LLVMDisposeMCJITMemoryManager(LLVMMCJITMemoryManagerRef MM);
/*===-- JIT Event Listener functions -------------------------------------===*/
LLVMJITEventListenerRef LLVMCreateGDBRegistrationListener(void);
LLVMJITEventListenerRef LLVMCreateIntelJITEventListener(void);
LLVMJITEventListenerRef LLVMCreateOProfileJITEventListener(void);
LLVMJITEventListenerRef LLVMCreatePerfJITEventListener(void);
/**
* @}
*/
LLVM_C_EXTERN_C_END
#endif