reference, declarationdefinition
definition → references, declarations, derived classes, virtual overrides
reference to multiple definitions → definitions
unreferenced
    1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134
  135
  136
  137
  138
  139
  140
  141
  142
  143
  144
  145
  146
  147
  148
  149
  150
  151
  152
  153
  154
  155
  156
  157
  158
  159
  160
  161
  162
  163
  164
  165
  166
  167
  168
  169
  170
  171
  172
  173
  174
  175
  176
  177
  178
  179
  180
  181
  182
/*===----------- llvm-c/OrcBindings.h - Orc Lib C Iface ---------*- C++ -*-===*\
|*                                                                            *|
|*                     The LLVM Compiler Infrastructure                       *|
|*                                                                            *|
|* This file is distributed under the University of Illinois Open Source      *|
|* License. See LICENSE.TXT for details.                                      *|
|*                                                                            *|
|*===----------------------------------------------------------------------===*|
|*                                                                            *|
|* This header declares the C interface to libLLVMOrcJIT.a, which implements  *|
|* JIT compilation of 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.                                           *|
|*                                                                            *|
|* Note: This interface is experimental. It is *NOT* stable, and may be       *|
|*       changed without warning.                                             *|
|*                                                                            *|
\*===----------------------------------------------------------------------===*/

#ifndef LLVM_C_ORCBINDINGS_H
#define LLVM_C_ORCBINDINGS_H

#include "llvm-c/Object.h"
#include "llvm-c/TargetMachine.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct LLVMOpaqueSharedModule *LLVMSharedModuleRef;
typedef struct LLVMOrcOpaqueJITStack *LLVMOrcJITStackRef;
typedef uint32_t LLVMOrcModuleHandle;
typedef uint64_t LLVMOrcTargetAddress;
typedef uint64_t (*LLVMOrcSymbolResolverFn)(const char *Name, void *LookupCtx);
typedef uint64_t (*LLVMOrcLazyCompileCallbackFn)(LLVMOrcJITStackRef JITStack,
                                                 void *CallbackCtx);

typedef enum { LLVMOrcErrSuccess = 0, LLVMOrcErrGeneric } LLVMOrcErrorCode;

/**
 * Turn an LLVMModuleRef into an LLVMSharedModuleRef.
 *
 * The JIT uses shared ownership for LLVM modules, since it is generally
 * difficult to know when the JIT will be finished with a module (and the JIT
 * has no way of knowing when a user may be finished with one).
 *
 * Calling this method with an LLVMModuleRef creates a shared-pointer to the
 * module, and returns a reference to this shared pointer.
 *
 * The shared module should be disposed when finished with by calling
 * LLVMOrcDisposeSharedModule (not LLVMDisposeModule). The Module will be
 * deleted when the last shared pointer owner relinquishes it.
 */

LLVMSharedModuleRef LLVMOrcMakeSharedModule(LLVMModuleRef Mod);

/**
 * Dispose of a shared module.
 *
 * The module should not be accessed after this call. The module will be
 * deleted once all clients (including the JIT itself) have released their
 * shared pointers.
 */

void LLVMOrcDisposeSharedModuleRef(LLVMSharedModuleRef SharedMod);

/**
 * Create an ORC JIT stack.
 *
 * The client owns the resulting stack, and must call OrcDisposeInstance(...)
 * to destroy it and free its memory. The JIT stack will take ownership of the
 * TargetMachine, which will be destroyed when the stack is destroyed. The
 * client should not attempt to dispose of the Target Machine, or it will result
 * in a double-free.
 */
LLVMOrcJITStackRef LLVMOrcCreateInstance(LLVMTargetMachineRef TM);

/**
 * Get the error message for the most recent error (if any).
 *
 * This message is owned by the ORC JIT Stack and will be freed when the stack
 * is disposed of by LLVMOrcDisposeInstance.
 */
const char *LLVMOrcGetErrorMsg(LLVMOrcJITStackRef JITStack);

/**
 * Mangle the given symbol.
 * Memory will be allocated for MangledSymbol to hold the result. The client
 */
void LLVMOrcGetMangledSymbol(LLVMOrcJITStackRef JITStack, char **MangledSymbol,
                             const char *Symbol);

/**
 * Dispose of a mangled symbol.
 */
void LLVMOrcDisposeMangledSymbol(char *MangledSymbol);

/**
 * Create a lazy compile callback.
 */
LLVMOrcErrorCode
LLVMOrcCreateLazyCompileCallback(LLVMOrcJITStackRef JITStack,
                                 LLVMOrcTargetAddress *RetAddr,
                                 LLVMOrcLazyCompileCallbackFn Callback,
                                 void *CallbackCtx);

/**
 * Create a named indirect call stub.
 */
LLVMOrcErrorCode LLVMOrcCreateIndirectStub(LLVMOrcJITStackRef JITStack,
                                           const char *StubName,
                                           LLVMOrcTargetAddress InitAddr);

/**
 * Set the pointer for the given indirect stub.
 */
LLVMOrcErrorCode LLVMOrcSetIndirectStubPointer(LLVMOrcJITStackRef JITStack,
                                               const char *StubName,
                                               LLVMOrcTargetAddress NewAddr);

/**
 * Add module to be eagerly compiled.
 */
LLVMOrcErrorCode
LLVMOrcAddEagerlyCompiledIR(LLVMOrcJITStackRef JITStack,
                            LLVMOrcModuleHandle *RetHandle,
                            LLVMSharedModuleRef Mod,
                            LLVMOrcSymbolResolverFn SymbolResolver,
                            void *SymbolResolverCtx);

/**
 * Add module to be lazily compiled one function at a time.
 */
LLVMOrcErrorCode
LLVMOrcAddLazilyCompiledIR(LLVMOrcJITStackRef JITStack,
                           LLVMOrcModuleHandle *RetHandle,
                           LLVMSharedModuleRef Mod,
                           LLVMOrcSymbolResolverFn SymbolResolver,
                           void *SymbolResolverCtx);

/**
 * Add an object file.
 *
 * This method takes ownership of the given memory buffer and attempts to add
 * it to the JIT as an object file.
 * Clients should *not* dispose of the 'Obj' argument: the JIT will manage it
 * from this call onwards.
 */
LLVMOrcErrorCode LLVMOrcAddObjectFile(LLVMOrcJITStackRef JITStack,
                                      LLVMOrcModuleHandle *RetHandle,
                                      LLVMMemoryBufferRef Obj,
                                      LLVMOrcSymbolResolverFn SymbolResolver,
                                      void *SymbolResolverCtx);

/**
 * Remove a module set from the JIT.
 *
 * This works for all modules that can be added via OrcAdd*, including object
 * files.
 */
LLVMOrcErrorCode LLVMOrcRemoveModule(LLVMOrcJITStackRef JITStack,
                                     LLVMOrcModuleHandle H);

/**
 * Get symbol address from JIT instance.
 */
LLVMOrcErrorCode LLVMOrcGetSymbolAddress(LLVMOrcJITStackRef JITStack,
                                         LLVMOrcTargetAddress *RetAddr,
                                         const char *SymbolName);

/**
 * Dispose of an ORC JIT stack.
 */
LLVMOrcErrorCode LLVMOrcDisposeInstance(LLVMOrcJITStackRef JITStack);

#ifdef __cplusplus
}
#endif /* extern "C" */

#endif /* LLVM_C_ORCBINDINGS_H */