50fb57bb10
In upgrading LLVM, only rust functions had the "split-stack" attribute added. This commit changes the addition of LLVM's "split-stack" attribute to *always* occur and then we remove it sometimes if the "no_split_stack" rust attribute is present. Closes #13625
746 lines
21 KiB
C++
746 lines
21 KiB
C++
// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#include "rustllvm.h"
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#include "llvm/Object/Archive.h"
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#include "llvm/Object/ObjectFile.h"
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//===----------------------------------------------------------------------===
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//
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// This file defines alternate interfaces to core functions that are more
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// readily callable by Rust's FFI.
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//
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//===----------------------------------------------------------------------===
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using namespace llvm;
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using namespace llvm::sys;
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using namespace llvm::object;
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const char *LLVMRustError;
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extern "C" LLVMMemoryBufferRef
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LLVMRustCreateMemoryBufferWithContentsOfFile(const char *Path) {
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LLVMMemoryBufferRef MemBuf = NULL;
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LLVMCreateMemoryBufferWithContentsOfFile(Path, &MemBuf,
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const_cast<char **>(&LLVMRustError));
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return MemBuf;
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}
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extern "C" const char *LLVMRustGetLastError(void) {
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return LLVMRustError;
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}
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extern "C" void
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LLVMRustSetNormalizedTarget(LLVMModuleRef M, const char *triple) {
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unwrap(M)->setTargetTriple(Triple::normalize(triple));
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}
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extern "C" LLVMValueRef LLVMRustConstSmallInt(LLVMTypeRef IntTy, unsigned N,
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LLVMBool SignExtend) {
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return LLVMConstInt(IntTy, (unsigned long long)N, SignExtend);
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}
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extern "C" LLVMValueRef LLVMRustConstInt(LLVMTypeRef IntTy,
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unsigned N_hi,
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unsigned N_lo,
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LLVMBool SignExtend) {
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unsigned long long N = N_hi;
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N <<= 32;
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N |= N_lo;
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return LLVMConstInt(IntTy, N, SignExtend);
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}
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extern "C" void LLVMRustPrintPassTimings() {
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raw_fd_ostream OS (2, false); // stderr.
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TimerGroup::printAll(OS);
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}
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extern "C" LLVMValueRef LLVMGetOrInsertFunction(LLVMModuleRef M,
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const char* Name,
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LLVMTypeRef FunctionTy) {
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return wrap(unwrap(M)->getOrInsertFunction(Name,
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unwrap<FunctionType>(FunctionTy)));
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}
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extern "C" LLVMTypeRef LLVMMetadataTypeInContext(LLVMContextRef C) {
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return wrap(Type::getMetadataTy(*unwrap(C)));
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}
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extern "C" void LLVMAddFunctionAttrString(LLVMValueRef fn, const char *Name) {
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unwrap<Function>(fn)->addFnAttr(Name);
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}
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extern "C" void LLVMRemoveFunctionAttrString(LLVMValueRef fn, const char *Name) {
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Function *f = unwrap<Function>(fn);
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LLVMContext &C = f->getContext();
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AttrBuilder B;
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B.addAttribute(Name);
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AttributeSet to_remove = AttributeSet::get(C, AttributeSet::FunctionIndex, B);
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AttributeSet attrs = f->getAttributes();
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f->setAttributes(attrs.removeAttributes(f->getContext(),
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AttributeSet::FunctionIndex,
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to_remove));
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}
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extern "C" void LLVMAddReturnAttribute(LLVMValueRef Fn, LLVMAttribute PA) {
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Function *A = unwrap<Function>(Fn);
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AttrBuilder B(PA);
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A->addAttributes(AttributeSet::ReturnIndex,
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AttributeSet::get(A->getContext(), AttributeSet::ReturnIndex, B));
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}
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extern "C" void LLVMRemoveReturnAttribute(LLVMValueRef Fn, LLVMAttribute PA) {
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Function *A = unwrap<Function>(Fn);
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AttrBuilder B(PA);
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A->removeAttributes(AttributeSet::ReturnIndex,
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AttributeSet::get(A->getContext(), AttributeSet::ReturnIndex, B));
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}
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#if LLVM_VERSION_MINOR >= 5
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extern "C" void LLVMAddColdAttribute(LLVMValueRef Fn) {
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Function *A = unwrap<Function>(Fn);
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A->addAttribute(AttributeSet::FunctionIndex, Attribute::Cold);
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}
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#else
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extern "C" void LLVMAddColdAttribute(LLVMValueRef Fn) {}
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#endif
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extern "C" LLVMValueRef LLVMBuildAtomicLoad(LLVMBuilderRef B,
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LLVMValueRef source,
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const char* Name,
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AtomicOrdering order,
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unsigned alignment) {
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LoadInst* li = new LoadInst(unwrap(source),0);
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li->setVolatile(true);
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li->setAtomic(order);
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li->setAlignment(alignment);
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return wrap(unwrap(B)->Insert(li, Name));
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}
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extern "C" LLVMValueRef LLVMBuildAtomicStore(LLVMBuilderRef B,
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LLVMValueRef val,
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LLVMValueRef target,
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AtomicOrdering order,
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unsigned alignment) {
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StoreInst* si = new StoreInst(unwrap(val),unwrap(target));
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si->setVolatile(true);
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si->setAtomic(order);
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si->setAlignment(alignment);
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return wrap(unwrap(B)->Insert(si));
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}
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extern "C" LLVMValueRef LLVMBuildAtomicCmpXchg(LLVMBuilderRef B,
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LLVMValueRef target,
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LLVMValueRef old,
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LLVMValueRef source,
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AtomicOrdering order,
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AtomicOrdering failure_order) {
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return wrap(unwrap(B)->CreateAtomicCmpXchg(unwrap(target), unwrap(old),
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unwrap(source), order
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#if LLVM_VERSION_MINOR >= 5
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, failure_order
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#endif
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));
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}
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extern "C" LLVMValueRef LLVMBuildAtomicFence(LLVMBuilderRef B, AtomicOrdering order) {
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return wrap(unwrap(B)->CreateFence(order));
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}
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extern "C" void LLVMSetDebug(int Enabled) {
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#ifndef NDEBUG
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DebugFlag = Enabled;
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#endif
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}
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extern "C" LLVMValueRef LLVMInlineAsm(LLVMTypeRef Ty,
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char *AsmString,
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char *Constraints,
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LLVMBool HasSideEffects,
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LLVMBool IsAlignStack,
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unsigned Dialect) {
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return wrap(InlineAsm::get(unwrap<FunctionType>(Ty), AsmString,
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Constraints, HasSideEffects,
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IsAlignStack, (InlineAsm::AsmDialect) Dialect));
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}
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typedef DIBuilder* DIBuilderRef;
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template<typename DIT>
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DIT unwrapDI(LLVMValueRef ref) {
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return DIT(ref ? unwrap<MDNode>(ref) : NULL);
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}
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#if LLVM_VERSION_MINOR >= 5
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extern "C" const uint32_t LLVMRustDebugMetadataVersion = DEBUG_METADATA_VERSION;
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#else
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extern "C" const uint32_t LLVMRustDebugMetadataVersion = 1;
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#endif
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extern "C" void LLVMRustAddModuleFlag(LLVMModuleRef M,
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const char *name,
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uint32_t value) {
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unwrap(M)->addModuleFlag(Module::Warning, name, value);
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}
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extern "C" DIBuilderRef LLVMDIBuilderCreate(LLVMModuleRef M) {
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return new DIBuilder(*unwrap(M));
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}
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extern "C" void LLVMDIBuilderDispose(DIBuilderRef Builder) {
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delete Builder;
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}
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extern "C" void LLVMDIBuilderFinalize(DIBuilderRef Builder) {
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Builder->finalize();
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}
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extern "C" void LLVMDIBuilderCreateCompileUnit(
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DIBuilderRef Builder,
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unsigned Lang,
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const char* File,
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const char* Dir,
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const char* Producer,
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bool isOptimized,
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const char* Flags,
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unsigned RuntimeVer,
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const char* SplitName) {
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Builder->createCompileUnit(Lang, File, Dir, Producer, isOptimized,
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Flags, RuntimeVer, SplitName);
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateFile(
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DIBuilderRef Builder,
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const char* Filename,
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const char* Directory) {
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return wrap(Builder->createFile(Filename, Directory));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateSubroutineType(
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DIBuilderRef Builder,
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LLVMValueRef File,
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LLVMValueRef ParameterTypes) {
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return wrap(Builder->createSubroutineType(
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unwrapDI<DIFile>(File),
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unwrapDI<DIArray>(ParameterTypes)));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateFunction(
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DIBuilderRef Builder,
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LLVMValueRef Scope,
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const char* Name,
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const char* LinkageName,
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LLVMValueRef File,
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unsigned LineNo,
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LLVMValueRef Ty,
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bool isLocalToUnit,
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bool isDefinition,
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unsigned ScopeLine,
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unsigned Flags,
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bool isOptimized,
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LLVMValueRef Fn,
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LLVMValueRef TParam,
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LLVMValueRef Decl) {
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return wrap(Builder->createFunction(
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unwrapDI<DIScope>(Scope), Name, LinkageName,
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unwrapDI<DIFile>(File), LineNo,
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unwrapDI<DICompositeType>(Ty), isLocalToUnit, isDefinition, ScopeLine,
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Flags, isOptimized,
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unwrap<Function>(Fn),
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unwrapDI<MDNode*>(TParam),
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unwrapDI<MDNode*>(Decl)));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateBasicType(
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DIBuilderRef Builder,
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const char* Name,
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uint64_t SizeInBits,
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uint64_t AlignInBits,
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unsigned Encoding) {
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return wrap(Builder->createBasicType(
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Name, SizeInBits,
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AlignInBits, Encoding));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreatePointerType(
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DIBuilderRef Builder,
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LLVMValueRef PointeeTy,
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uint64_t SizeInBits,
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uint64_t AlignInBits,
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const char* Name) {
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return wrap(Builder->createPointerType(
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unwrapDI<DIType>(PointeeTy), SizeInBits, AlignInBits, Name));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateStructType(
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DIBuilderRef Builder,
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LLVMValueRef Scope,
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const char* Name,
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LLVMValueRef File,
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unsigned LineNumber,
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uint64_t SizeInBits,
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uint64_t AlignInBits,
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unsigned Flags,
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LLVMValueRef DerivedFrom,
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LLVMValueRef Elements,
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unsigned RunTimeLang,
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LLVMValueRef VTableHolder,
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const char *UniqueId) {
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return wrap(Builder->createStructType(
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unwrapDI<DIDescriptor>(Scope),
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Name,
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unwrapDI<DIFile>(File),
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LineNumber,
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SizeInBits,
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AlignInBits,
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Flags,
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unwrapDI<DIType>(DerivedFrom),
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unwrapDI<DIArray>(Elements),
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RunTimeLang,
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unwrapDI<DIType>(VTableHolder)
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#if LLVM_VERSION_MINOR >= 5
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,UniqueId
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#endif
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));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateMemberType(
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DIBuilderRef Builder,
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LLVMValueRef Scope,
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const char* Name,
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LLVMValueRef File,
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unsigned LineNo,
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uint64_t SizeInBits,
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uint64_t AlignInBits,
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uint64_t OffsetInBits,
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unsigned Flags,
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LLVMValueRef Ty) {
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return wrap(Builder->createMemberType(
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unwrapDI<DIDescriptor>(Scope), Name,
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unwrapDI<DIFile>(File), LineNo,
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SizeInBits, AlignInBits, OffsetInBits, Flags,
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unwrapDI<DIType>(Ty)));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateLexicalBlock(
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DIBuilderRef Builder,
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LLVMValueRef Scope,
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LLVMValueRef File,
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unsigned Line,
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unsigned Col,
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unsigned Discriminator) {
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return wrap(Builder->createLexicalBlock(
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unwrapDI<DIDescriptor>(Scope),
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unwrapDI<DIFile>(File), Line, Col
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#if LLVM_VERSION_MINOR >= 5
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, Discriminator
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#endif
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));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateStaticVariable(
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DIBuilderRef Builder,
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LLVMValueRef Context,
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const char* Name,
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const char* LinkageName,
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LLVMValueRef File,
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unsigned LineNo,
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LLVMValueRef Ty,
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bool isLocalToUnit,
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LLVMValueRef Val,
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LLVMValueRef Decl = NULL) {
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return wrap(Builder->createStaticVariable(unwrapDI<DIDescriptor>(Context),
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Name,
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LinkageName,
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unwrapDI<DIFile>(File),
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LineNo,
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unwrapDI<DIType>(Ty),
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isLocalToUnit,
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unwrap(Val),
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unwrapDI<MDNode*>(Decl)));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateLocalVariable(
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DIBuilderRef Builder,
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unsigned Tag,
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LLVMValueRef Scope,
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const char* Name,
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LLVMValueRef File,
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unsigned LineNo,
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LLVMValueRef Ty,
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bool AlwaysPreserve,
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unsigned Flags,
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unsigned ArgNo) {
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return wrap(Builder->createLocalVariable(Tag,
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unwrapDI<DIDescriptor>(Scope), Name,
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unwrapDI<DIFile>(File),
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LineNo,
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unwrapDI<DIType>(Ty), AlwaysPreserve, Flags, ArgNo));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateArrayType(
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DIBuilderRef Builder,
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uint64_t Size,
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uint64_t AlignInBits,
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LLVMValueRef Ty,
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LLVMValueRef Subscripts) {
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return wrap(Builder->createArrayType(Size, AlignInBits,
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unwrapDI<DIType>(Ty),
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unwrapDI<DIArray>(Subscripts)));
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}
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extern "C" LLVMValueRef LLVMDIBuilderCreateVectorType(
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DIBuilderRef Builder,
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uint64_t Size,
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uint64_t AlignInBits,
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LLVMValueRef Ty,
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LLVMValueRef Subscripts) {
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return wrap(Builder->createVectorType(Size, AlignInBits,
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unwrapDI<DIType>(Ty),
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unwrapDI<DIArray>(Subscripts)));
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}
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extern "C" LLVMValueRef LLVMDIBuilderGetOrCreateSubrange(
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DIBuilderRef Builder,
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int64_t Lo,
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int64_t Count) {
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return wrap(Builder->getOrCreateSubrange(Lo, Count));
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}
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extern "C" LLVMValueRef LLVMDIBuilderGetOrCreateArray(
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DIBuilderRef Builder,
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LLVMValueRef* Ptr,
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unsigned Count) {
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return wrap(Builder->getOrCreateArray(
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ArrayRef<Value*>(reinterpret_cast<Value**>(Ptr), Count)));
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}
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extern "C" LLVMValueRef LLVMDIBuilderInsertDeclareAtEnd(
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DIBuilderRef Builder,
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LLVMValueRef Val,
|
|
LLVMValueRef VarInfo,
|
|
LLVMBasicBlockRef InsertAtEnd) {
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return wrap(Builder->insertDeclare(
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unwrap(Val),
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unwrapDI<DIVariable>(VarInfo),
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unwrap(InsertAtEnd)));
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}
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extern "C" LLVMValueRef LLVMDIBuilderInsertDeclareBefore(
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DIBuilderRef Builder,
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LLVMValueRef Val,
|
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LLVMValueRef VarInfo,
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LLVMValueRef InsertBefore) {
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return wrap(Builder->insertDeclare(
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unwrap(Val),
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unwrapDI<DIVariable>(VarInfo),
|
|
unwrap<Instruction>(InsertBefore)));
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}
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|
extern "C" LLVMValueRef LLVMDIBuilderCreateEnumerator(
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|
DIBuilderRef Builder,
|
|
const char* Name,
|
|
uint64_t Val)
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|
{
|
|
return wrap(Builder->createEnumerator(Name, Val));
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|
}
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|
|
|
extern "C" LLVMValueRef LLVMDIBuilderCreateEnumerationType(
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|
DIBuilderRef Builder,
|
|
LLVMValueRef Scope,
|
|
const char* Name,
|
|
LLVMValueRef File,
|
|
unsigned LineNumber,
|
|
uint64_t SizeInBits,
|
|
uint64_t AlignInBits,
|
|
LLVMValueRef Elements,
|
|
LLVMValueRef ClassType)
|
|
{
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|
return wrap(Builder->createEnumerationType(
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unwrapDI<DIDescriptor>(Scope),
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|
Name,
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|
unwrapDI<DIFile>(File),
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|
LineNumber,
|
|
SizeInBits,
|
|
AlignInBits,
|
|
unwrapDI<DIArray>(Elements),
|
|
unwrapDI<DIType>(ClassType)));
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}
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|
extern "C" LLVMValueRef LLVMDIBuilderCreateUnionType(
|
|
DIBuilderRef Builder,
|
|
LLVMValueRef Scope,
|
|
const char* Name,
|
|
LLVMValueRef File,
|
|
unsigned LineNumber,
|
|
uint64_t SizeInBits,
|
|
uint64_t AlignInBits,
|
|
unsigned Flags,
|
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LLVMValueRef Elements,
|
|
unsigned RunTimeLang,
|
|
const char* UniqueId)
|
|
{
|
|
return wrap(Builder->createUnionType(
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unwrapDI<DIDescriptor>(Scope),
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Name,
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|
unwrapDI<DIFile>(File),
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|
LineNumber,
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|
SizeInBits,
|
|
AlignInBits,
|
|
Flags,
|
|
unwrapDI<DIArray>(Elements),
|
|
RunTimeLang
|
|
#if LLVM_VERSION_MINOR >= 5
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|
,UniqueId
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|
#endif
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));
|
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}
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|
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#if LLVM_VERSION_MINOR < 5
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extern "C" void LLVMSetUnnamedAddr(LLVMValueRef Value, LLVMBool Unnamed) {
|
|
unwrap<GlobalValue>(Value)->setUnnamedAddr(Unnamed);
|
|
}
|
|
#endif
|
|
|
|
extern "C" LLVMValueRef LLVMDIBuilderCreateTemplateTypeParameter(
|
|
DIBuilderRef Builder,
|
|
LLVMValueRef Scope,
|
|
const char* Name,
|
|
LLVMValueRef Ty,
|
|
LLVMValueRef File,
|
|
unsigned LineNo,
|
|
unsigned ColumnNo)
|
|
{
|
|
return wrap(Builder->createTemplateTypeParameter(
|
|
unwrapDI<DIDescriptor>(Scope),
|
|
Name,
|
|
unwrapDI<DIType>(Ty),
|
|
unwrapDI<MDNode*>(File),
|
|
LineNo,
|
|
ColumnNo));
|
|
}
|
|
|
|
extern "C" LLVMValueRef LLVMDIBuilderCreateOpDeref(LLVMTypeRef IntTy)
|
|
{
|
|
return LLVMConstInt(IntTy, DIBuilder::OpDeref, true);
|
|
}
|
|
|
|
extern "C" LLVMValueRef LLVMDIBuilderCreateOpPlus(LLVMTypeRef IntTy)
|
|
{
|
|
return LLVMConstInt(IntTy, DIBuilder::OpPlus, true);
|
|
}
|
|
|
|
extern "C" LLVMValueRef LLVMDIBuilderCreateComplexVariable(
|
|
DIBuilderRef Builder,
|
|
unsigned Tag,
|
|
LLVMValueRef Scope,
|
|
const char *Name,
|
|
LLVMValueRef File,
|
|
unsigned LineNo,
|
|
LLVMValueRef Ty,
|
|
LLVMValueRef* AddrOps,
|
|
unsigned AddrOpsCount,
|
|
unsigned ArgNo)
|
|
{
|
|
llvm::ArrayRef<llvm::Value*> addr_ops((llvm::Value**)AddrOps, AddrOpsCount);
|
|
|
|
return wrap(Builder->createComplexVariable(
|
|
Tag,
|
|
unwrapDI<DIDescriptor>(Scope),
|
|
Name,
|
|
unwrapDI<DIFile>(File),
|
|
LineNo,
|
|
unwrapDI<DIType>(Ty),
|
|
addr_ops,
|
|
ArgNo
|
|
));
|
|
}
|
|
|
|
extern "C" LLVMValueRef LLVMDIBuilderCreateNameSpace(
|
|
DIBuilderRef Builder,
|
|
LLVMValueRef Scope,
|
|
const char* Name,
|
|
LLVMValueRef File,
|
|
unsigned LineNo)
|
|
{
|
|
return wrap(Builder->createNameSpace(
|
|
unwrapDI<DIDescriptor>(Scope),
|
|
Name,
|
|
unwrapDI<DIFile>(File),
|
|
LineNo));
|
|
}
|
|
|
|
extern "C" void LLVMDICompositeTypeSetTypeArray(
|
|
LLVMValueRef CompositeType,
|
|
LLVMValueRef TypeArray)
|
|
{
|
|
unwrapDI<DICompositeType>(CompositeType).setTypeArray(unwrapDI<DIArray>(TypeArray));
|
|
}
|
|
|
|
extern "C" char *LLVMTypeToString(LLVMTypeRef Type) {
|
|
std::string s;
|
|
llvm::raw_string_ostream os(s);
|
|
unwrap<llvm::Type>(Type)->print(os);
|
|
return strdup(os.str().data());
|
|
}
|
|
|
|
extern "C" char *LLVMValueToString(LLVMValueRef Value) {
|
|
std::string s;
|
|
llvm::raw_string_ostream os(s);
|
|
os << "(";
|
|
unwrap<llvm::Value>(Value)->getType()->print(os);
|
|
os << ":";
|
|
unwrap<llvm::Value>(Value)->print(os);
|
|
os << ")";
|
|
return strdup(os.str().data());
|
|
}
|
|
|
|
#if LLVM_VERSION_MINOR >= 5
|
|
extern "C" bool
|
|
LLVMRustLinkInExternalBitcode(LLVMModuleRef dst, char *bc, size_t len) {
|
|
Module *Dst = unwrap(dst);
|
|
MemoryBuffer* buf = MemoryBuffer::getMemBufferCopy(StringRef(bc, len));
|
|
ErrorOr<Module *> Src = llvm::getLazyBitcodeModule(buf, Dst->getContext());
|
|
if (!Src) {
|
|
LLVMRustError = Src.getError().message().c_str();
|
|
delete buf;
|
|
return false;
|
|
}
|
|
|
|
std::string Err;
|
|
if (Linker::LinkModules(Dst, *Src, Linker::DestroySource, &Err)) {
|
|
LLVMRustError = Err.c_str();
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
#else
|
|
extern "C" bool
|
|
LLVMRustLinkInExternalBitcode(LLVMModuleRef dst, char *bc, size_t len) {
|
|
Module *Dst = unwrap(dst);
|
|
MemoryBuffer* buf = MemoryBuffer::getMemBufferCopy(StringRef(bc, len));
|
|
std::string Err;
|
|
Module *Src = llvm::getLazyBitcodeModule(buf, Dst->getContext(), &Err);
|
|
if (!Src) {
|
|
LLVMRustError = Err.c_str();
|
|
delete buf;
|
|
return false;
|
|
}
|
|
|
|
if (Linker::LinkModules(Dst, Src, Linker::DestroySource, &Err)) {
|
|
LLVMRustError = Err.c_str();
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
#if LLVM_VERSION_MINOR >= 5
|
|
extern "C" void*
|
|
LLVMRustOpenArchive(char *path) {
|
|
std::unique_ptr<MemoryBuffer> buf;
|
|
error_code err = MemoryBuffer::getFile(path, buf);
|
|
if (err) {
|
|
LLVMRustError = err.message().c_str();
|
|
return NULL;
|
|
}
|
|
Archive *ret = new Archive(buf.release(), err);
|
|
if (err) {
|
|
LLVMRustError = err.message().c_str();
|
|
return NULL;
|
|
}
|
|
return ret;
|
|
}
|
|
#else
|
|
extern "C" void*
|
|
LLVMRustOpenArchive(char *path) {
|
|
OwningPtr<MemoryBuffer> buf;
|
|
error_code err = MemoryBuffer::getFile(path, buf);
|
|
if (err) {
|
|
LLVMRustError = err.message().c_str();
|
|
return NULL;
|
|
}
|
|
Archive *ret = new Archive(buf.take(), err);
|
|
if (err) {
|
|
LLVMRustError = err.message().c_str();
|
|
return NULL;
|
|
}
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
extern "C" const char*
|
|
LLVMRustArchiveReadSection(Archive *ar, char *name, size_t *size) {
|
|
#if LLVM_VERSION_MINOR >= 5
|
|
Archive::child_iterator child = ar->child_begin(),
|
|
end = ar->child_end();
|
|
#else
|
|
Archive::child_iterator child = ar->begin_children(),
|
|
end = ar->end_children();
|
|
#endif
|
|
for (; child != end; ++child) {
|
|
StringRef sect_name;
|
|
error_code err = child->getName(sect_name);
|
|
if (err) continue;
|
|
if (sect_name.trim(" ") == name) {
|
|
StringRef buf = child->getBuffer();
|
|
*size = buf.size();
|
|
return buf.data();
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
extern "C" void
|
|
LLVMRustDestroyArchive(Archive *ar) {
|
|
delete ar;
|
|
}
|
|
|
|
#if LLVM_VERSION_MINOR >= 5
|
|
extern "C" void
|
|
LLVMRustSetDLLExportStorageClass(LLVMValueRef Value) {
|
|
GlobalValue *V = unwrap<GlobalValue>(Value);
|
|
V->setDLLStorageClass(GlobalValue::DLLExportStorageClass);
|
|
}
|
|
#else
|
|
extern "C" void
|
|
LLVMRustSetDLLExportStorageClass(LLVMValueRef Value) {
|
|
LLVMSetLinkage(Value, LLVMDLLExportLinkage);
|
|
}
|
|
#endif
|
|
|
|
extern "C" int
|
|
LLVMVersionMinor() {
|
|
return LLVM_VERSION_MINOR;
|
|
}
|
|
|
|
// Note that the two following functions look quite similar to the
|
|
// LLVMGetSectionName function. Sadly, it appears that this function only
|
|
// returns a char* pointer, which isn't guaranteed to be null-terminated. The
|
|
// function provided by LLVM doesn't return the length, so we've created our own
|
|
// function which returns the length as well as the data pointer.
|
|
//
|
|
// For an example of this not returning a null terminated string, see
|
|
// lib/Object/COFFObjectFile.cpp in the getSectionName function. One of the
|
|
// branches explicitly creates a StringRef without a null terminator, and then
|
|
// that's returned.
|
|
|
|
inline section_iterator *unwrap(LLVMSectionIteratorRef SI) {
|
|
return reinterpret_cast<section_iterator*>(SI);
|
|
}
|
|
|
|
extern "C" int
|
|
LLVMRustGetSectionName(LLVMSectionIteratorRef SI, const char **ptr) {
|
|
StringRef ret;
|
|
if (error_code ec = (*unwrap(SI))->getName(ret))
|
|
report_fatal_error(ec.message());
|
|
*ptr = ret.data();
|
|
return ret.size();
|
|
}
|