44 lines
1.0 KiB
C++
44 lines
1.0 KiB
C++
#include "LLVMWrapper.h"
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#include "llvm/Bitcode/BitcodeReader.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Linker/Linker.h"
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#include "llvm/Support/MemoryBuffer.h"
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using namespace llvm;
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struct RustLinker {
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Linker L;
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LLVMContext &Ctx;
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RustLinker(Module &M) : L(M), Ctx(M.getContext()) {}
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};
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extern "C" RustLinker *LLVMRustLinkerNew(LLVMModuleRef DstRef) {
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Module *Dst = unwrap(DstRef);
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return new RustLinker(*Dst);
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}
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extern "C" void LLVMRustLinkerFree(RustLinker *L) { delete L; }
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extern "C" bool LLVMRustLinkerAdd(RustLinker *L, char *BC, size_t Len) {
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std::unique_ptr<MemoryBuffer> Buf =
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MemoryBuffer::getMemBufferCopy(StringRef(BC, Len));
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Expected<std::unique_ptr<Module>> SrcOrError =
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llvm::getLazyBitcodeModule(Buf->getMemBufferRef(), L->Ctx);
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if (!SrcOrError) {
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LLVMRustSetLastError(toString(SrcOrError.takeError()).c_str());
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return false;
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}
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auto Src = std::move(*SrcOrError);
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if (L->L.linkInModule(std::move(Src))) {
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LLVMRustSetLastError("");
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return false;
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}
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return true;
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}
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