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/*-------------------------------------------------------------------------
*
* llvmjit_wrap.cpp
* Parts of the LLVM interface not (yet) exposed to C.
*
* Copyright (c) 2016-2025, PostgreSQL Global Development Group
*
* IDENTIFICATION
* src/backend/lib/llvm/llvmjit_wrap.cpp
*
*-------------------------------------------------------------------------
*/
extern "C"
{
#include "postgres.h"
}
#include <llvm-c/Core.h>
#include <llvm/IR/Function.h>
#include "jit/llvmjit.h"
#include "jit/llvmjit_backport.h"
#ifdef USE_LLVM_BACKPORT_SECTION_MEMORY_MANAGER
#include <llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h>
#include <llvm/ExecutionEngine/SectionMemoryManager.h>
#include "jit/SectionMemoryManager.h"
#include <llvm/Support/CBindingWrapping.h>
#endif
/*
* C-API extensions.
*/
LLVMTypeRef
LLVMGetFunctionReturnType(LLVMValueRef r)
{
return llvm::wrap(llvm::unwrap<llvm::Function>(r)->getReturnType());
}
LLVMTypeRef
LLVMGetFunctionType(LLVMValueRef r)
{
return llvm::wrap(llvm::unwrap<llvm::Function>(r)->getFunctionType());
}
#ifdef USE_LLVM_BACKPORT_SECTION_MEMORY_MANAGER
DEFINE_SIMPLE_CONVERSION_FUNCTIONS(llvm::orc::ExecutionSession, LLVMOrcExecutionSessionRef)
DEFINE_SIMPLE_CONVERSION_FUNCTIONS(llvm::orc::ObjectLayer, LLVMOrcObjectLayerRef);
LLVMOrcObjectLayerRef
LLVMOrcCreateRTDyldObjectLinkingLayerWithSafeSectionMemoryManager(LLVMOrcExecutionSessionRef ES)
{
return wrap(new llvm::orc::RTDyldObjectLinkingLayer(
*unwrap(ES), [] { return std::make_unique<llvm::backport::SectionMemoryManager>(nullptr, true); }));
}
#endif
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