Revert "[ORC] Add automatic shared library resolver for unresolved symbols." (#163943)
Reverts llvm/llvm-project#148410 Reverting this change due to a few buildbot/test failures. Will investigate and reapply once the issues are resolved.
This commit is contained in:
SahilPatidar
GitHub
parent
e40f215573
commit
8db1aabf8b
@ -1,173 +0,0 @@
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//===- SymbolFilter.h - Utilities for Symbol Filtering ---------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_EXECUTIONENGINE_ORC_SHARED_SYMBOLFILTER_H
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#define LLVM_EXECUTIONENGINE_ORC_SHARED_SYMBOLFILTER_H
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#include "llvm/ExecutionEngine/Orc/Shared/SimplePackedSerialization.h"
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#include <cmath>
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#include <type_traits>
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#include <vector>
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namespace llvm {
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namespace orc {
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namespace shared {
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using SPSBloomFilter =
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SPSTuple<bool, uint32_t, uint32_t, uint32_t, SPSSequence<uint64_t>>;
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}
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class BloomFilter {
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public:
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using HashFunc = std::function<uint32_t(StringRef)>;
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BloomFilter() = default;
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BloomFilter(BloomFilter &&) noexcept = default;
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BloomFilter &operator=(BloomFilter &&) noexcept = default;
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BloomFilter(const BloomFilter &) = delete;
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BloomFilter &operator=(const BloomFilter &) = delete;
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BloomFilter(uint32_t SymbolCount, float FalsePositiveRate, HashFunc hashFn)
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: HashFn(std::move(hashFn)) {
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initialize(SymbolCount, FalsePositiveRate);
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}
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bool isInitialized() const { return Initialized; }
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void add(StringRef Sym) {
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assert(Initialized);
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addHash(HashFn(Sym));
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}
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bool mayContain(StringRef Sym) const {
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return !isEmpty() && testHash(HashFn(Sym));
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}
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bool isEmpty() const { return SymbolCount == 0; }
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private:
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friend class shared::SPSSerializationTraits<shared::SPSBloomFilter,
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BloomFilter>;
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static constexpr uint32_t BitsPerEntry = 64;
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bool Initialized = false;
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uint32_t SymbolCount = 0;
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uint32_t BloomSize = 0;
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uint32_t BloomShift = 0;
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std::vector<uint64_t> BloomTable;
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HashFunc HashFn;
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void initialize(uint32_t SymCount, float FalsePositiveRate) {
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assert(SymCount > 0);
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SymbolCount = SymCount;
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Initialized = true;
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float ln2 = std::log(2.0f);
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float M = -1.0f * SymbolCount * std::log(FalsePositiveRate) / (ln2 * ln2);
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BloomSize = static_cast<uint32_t>(std::ceil(M / BitsPerEntry));
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BloomShift = std::min(6u, log2ceil(SymbolCount));
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BloomTable.resize(BloomSize, 0);
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}
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void addHash(uint32_t Hash) {
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uint32_t Hash2 = Hash >> BloomShift;
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uint32_t N = (Hash / BitsPerEntry) % BloomSize;
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uint64_t Mask =
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(1ULL << (Hash % BitsPerEntry)) | (1ULL << (Hash2 % BitsPerEntry));
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BloomTable[N] |= Mask;
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}
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bool testHash(uint32_t Hash) const {
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uint32_t Hash2 = Hash >> BloomShift;
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uint32_t N = (Hash / BitsPerEntry) % BloomSize;
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uint64_t Mask =
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(1ULL << (Hash % BitsPerEntry)) | (1ULL << (Hash2 % BitsPerEntry));
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return (BloomTable[N] & Mask) == Mask;
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}
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static constexpr uint32_t log2ceil(uint32_t V) {
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return V <= 1 ? 0 : 32 - countl_zero(V - 1);
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}
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};
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class BloomFilterBuilder {
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public:
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using HashFunc = BloomFilter::HashFunc;
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BloomFilterBuilder() = default;
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BloomFilterBuilder &setFalsePositiveRate(float Rate) {
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assert(Rate > 0.0f && Rate < 1.0f);
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FalsePositiveRate = Rate;
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return *this;
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}
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BloomFilterBuilder &setHashFunction(HashFunc Fn) {
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HashFn = std::move(Fn);
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return *this;
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}
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BloomFilter build(ArrayRef<StringRef> Symbols) const {
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assert(!Symbols.empty() && "Cannot build filter from empty symbol list.");
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BloomFilter F(static_cast<uint32_t>(Symbols.size()), FalsePositiveRate,
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HashFn);
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for (const auto &Sym : Symbols)
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F.add(Sym);
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return F;
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}
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private:
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float FalsePositiveRate = 0.02f;
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HashFunc HashFn = [](StringRef S) -> uint32_t {
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uint32_t H = 5381;
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for (char C : S)
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H = ((H << 5) + H) + static_cast<uint8_t>(C); // H * 33 + C
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return H;
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};
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};
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namespace shared {
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template <> class SPSSerializationTraits<SPSBloomFilter, BloomFilter> {
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public:
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static size_t size(const BloomFilter &Filter) {
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return SPSBloomFilter::AsArgList::size(
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Filter.Initialized, Filter.SymbolCount, Filter.BloomSize,
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Filter.BloomShift, Filter.BloomTable);
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}
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static bool serialize(SPSOutputBuffer &OB, const BloomFilter &Filter) {
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return SPSBloomFilter::AsArgList::serialize(
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OB, Filter.Initialized, Filter.SymbolCount, Filter.BloomSize,
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Filter.BloomShift, Filter.BloomTable);
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}
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static bool deserialize(SPSInputBuffer &IB, BloomFilter &Filter) {
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bool IsInitialized;
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uint32_t SymbolCount = 0, BloomSize = 0, BloomShift = 0;
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std::vector<uint64_t> BloomTable;
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if (!SPSBloomFilter::AsArgList::deserialize(
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IB, IsInitialized, SymbolCount, BloomSize, BloomShift, BloomTable))
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return false;
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Filter.Initialized = IsInitialized;
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Filter.SymbolCount = SymbolCount;
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Filter.BloomSize = BloomSize;
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Filter.BloomShift = BloomShift;
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Filter.BloomTable = std::move(BloomTable);
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return true;
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}
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};
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} // end namespace shared
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} // end namespace orc
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} // end namespace llvm
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#endif // LLVM_EXECUTIONENGINE_ORC_SHARED_SYMBOLFILTER_H
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@ -1,514 +0,0 @@
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//===- LibraryResolver.h - Automatic Library Symbol Resolution -*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file provides support for automatically searching symbols across
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// dynamic libraries that have not yet been loaded.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_LIBRARYRESOLVER_H
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#define LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_LIBRARYRESOLVER_H
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#include "llvm/ADT/FunctionExtras.h"
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#include "llvm/ExecutionEngine/Orc/Shared/SymbolFilter.h"
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#include "llvm/ExecutionEngine/Orc/TargetProcess/LibraryScanner.h"
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#include "llvm/Support/Path.h"
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#include <atomic>
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#include <shared_mutex>
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#include <unordered_map>
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namespace llvm {
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namespace orc {
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/// Manages library metadata and state for symbol resolution.
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///
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/// Tracks libraries by load state and kind (user/system), and stores
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/// associated Bloom filters and hash maps to speed up symbol lookups.
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/// Thread-safe for concurrent access.
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class LibraryManager {
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public:
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enum class LibState : uint8_t { Unloaded = 0, Loaded = 1, Queried = 2 };
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class LibraryInfo {
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public:
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LibraryInfo(const LibraryInfo &) = delete;
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LibraryInfo &operator=(const LibraryInfo &) = delete;
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LibraryInfo(std::string FilePath, LibState S, PathType K,
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std::optional<BloomFilter> Filter = std::nullopt)
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: FilePath(std::move(FilePath)), S(S), K(K), Filter(std::move(Filter)) {
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}
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StringRef getBasePath() const { return sys::path::parent_path(FilePath); }
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StringRef getFileName() const { return sys::path::filename(FilePath); }
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std::string getFullPath() const { return FilePath; }
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bool setFilter(BloomFilter F) {
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std::lock_guard<std::shared_mutex> Lock(Mtx);
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if (Filter)
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return false;
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Filter.emplace(std::move(F));
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return true;
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}
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bool ensureFilterBuilt(const BloomFilterBuilder &FB,
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ArrayRef<StringRef> Symbols) {
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std::lock_guard<std::shared_mutex> Lock(Mtx);
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if (Filter)
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return false;
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Filter.emplace(FB.build(Symbols));
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return true;
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}
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bool mayContain(StringRef Symbol) const {
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assert(hasFilter());
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std::shared_lock<std::shared_mutex> Lock(Mtx);
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return Filter->mayContain(Symbol);
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}
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bool hasFilter() const {
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std::shared_lock<std::shared_mutex> Lock(Mtx);
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return Filter.has_value();
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}
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LibState getState() const { return S.load(); }
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PathType getKind() const { return K; }
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void setState(LibState s) { S.store(s); }
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bool operator==(const LibraryInfo &other) const {
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return FilePath == other.FilePath;
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}
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private:
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std::string FilePath;
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std::atomic<LibState> S;
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PathType K;
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std::optional<BloomFilter> Filter;
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mutable std::shared_mutex Mtx;
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};
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/// A read-only view of libraries filtered by state and kind.
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///
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/// Lets you loop over only the libraries in a map that match a given State
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/// and PathType.
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class FilteredView {
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public:
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using Map = StringMap<std::shared_ptr<LibraryInfo>>;
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using Iterator = typename Map::const_iterator;
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class FilterIterator {
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public:
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FilterIterator(Iterator it_, Iterator end_, LibState S, PathType K)
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: it(it_), end(end_), S(S), K(K) {
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advance();
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}
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bool operator!=(const FilterIterator &other) const {
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return it != other.it;
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}
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const std::shared_ptr<LibraryInfo> &operator*() const {
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return it->second;
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}
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FilterIterator &operator++() {
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++it;
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advance();
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return *this;
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}
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private:
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void advance() {
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for (; it != end; ++it)
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if (it->second->getState() == S && it->second->getKind() == K)
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break;
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}
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Iterator it;
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Iterator end;
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LibState S;
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PathType K;
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};
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FilteredView(Iterator begin, Iterator end, LibState s, PathType k)
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: mapBegin(begin), mapEnd(end), state(s), kind(k) {}
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FilterIterator begin() const {
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return FilterIterator(mapBegin, mapEnd, state, kind);
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}
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FilterIterator end() const {
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return FilterIterator(mapEnd, mapEnd, state, kind);
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}
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private:
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Iterator mapBegin;
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Iterator mapEnd;
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LibState state;
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PathType kind;
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};
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private:
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StringMap<std::shared_ptr<LibraryInfo>> Libraries;
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mutable std::shared_mutex Mtx;
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public:
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using LibraryVisitor = std::function<bool(const LibraryInfo &)>;
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LibraryManager() = default;
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~LibraryManager() = default;
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bool addLibrary(std::string Path, PathType Kind,
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std::optional<BloomFilter> Filter = std::nullopt) {
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std::unique_lock<std::shared_mutex> Lock(Mtx);
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if (Libraries.count(Path) > 0)
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return false;
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Libraries.insert({std::move(Path),
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std::make_shared<LibraryInfo>(Path, LibState::Unloaded,
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Kind, std::move(Filter))});
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return true;
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}
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bool hasLibrary(StringRef Path) const {
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std::shared_lock<std::shared_mutex> Lock(Mtx);
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if (Libraries.count(Path) > 0)
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return true;
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return false;
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}
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bool removeLibrary(StringRef Path) {
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std::unique_lock<std::shared_mutex> Lock(Mtx);
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auto I = Libraries.find(Path);
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if (I == Libraries.end())
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return false;
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Libraries.erase(I);
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return true;
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}
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void markLoaded(StringRef Path) {
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std::unique_lock<std::shared_mutex> Lock(Mtx);
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if (auto It = Libraries.find(Path); It != Libraries.end())
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It->second->setState(LibState::Loaded);
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}
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void markQueried(StringRef Path) {
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std::unique_lock<std::shared_mutex> Lock(Mtx);
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if (auto It = Libraries.find(Path); It != Libraries.end())
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It->second->setState(LibState::Queried);
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}
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std::shared_ptr<LibraryInfo> getLibrary(StringRef Path) {
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std::shared_lock<std::shared_mutex> Lock(Mtx);
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if (auto It = Libraries.find(Path); It != Libraries.end())
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return It->second;
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return nullptr;
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}
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FilteredView getView(LibState S, PathType K) const {
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std::shared_lock<std::shared_mutex> Lock(Mtx);
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return FilteredView(Libraries.begin(), Libraries.end(), S, K);
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}
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void forEachLibrary(const LibraryVisitor &visitor) const {
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std::unique_lock<std::shared_mutex> Lock(Mtx);
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for (const auto &[_, entry] : Libraries) {
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if (!visitor(*entry))
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break;
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}
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}
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bool isLoaded(StringRef Path) const {
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std::unique_lock<std::shared_mutex> Lock(Mtx);
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if (auto It = Libraries.find(Path.str()); It != Libraries.end())
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return It->second->getState() == LibState::Loaded;
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return false;
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}
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bool isQueried(StringRef Path) const {
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std::unique_lock<std::shared_mutex> Lock(Mtx);
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if (auto It = Libraries.find(Path.str()); It != Libraries.end())
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return It->second->getState() == LibState::Queried;
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return false;
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}
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void clear() {
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std::unique_lock<std::shared_mutex> Lock(Mtx);
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Libraries.clear();
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}
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};
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using LibraryInfo = LibraryManager::LibraryInfo;
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struct SearchPlanEntry {
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LibraryManager::LibState State; // Loaded, Queried, Unloaded
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PathType Type; // User, System
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};
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struct SearchPolicy {
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std::vector<SearchPlanEntry> Plan;
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static SearchPolicy defaultPlan() {
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return {{{LibraryManager::LibState::Loaded, PathType::User},
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{LibraryManager::LibState::Queried, PathType::User},
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{LibraryManager::LibState::Unloaded, PathType::User},
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{LibraryManager::LibState::Loaded, PathType::System},
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{LibraryManager::LibState::Queried, PathType::System},
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{LibraryManager::LibState::Unloaded, PathType::System}}};
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}
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};
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struct SymbolEnumeratorOptions {
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enum Filter : uint32_t {
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None = 0,
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IgnoreUndefined = 1 << 0,
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IgnoreWeak = 1 << 1,
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IgnoreIndirect = 1 << 2,
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IgnoreHidden = 1 << 3,
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IgnoreNonGlobal = 1 << 4
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};
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static SymbolEnumeratorOptions defaultOptions() {
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return {Filter::IgnoreUndefined | Filter::IgnoreWeak |
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Filter::IgnoreIndirect};
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}
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uint32_t FilterFlags = Filter::None;
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};
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struct SearchConfig {
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SearchPolicy Policy;
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SymbolEnumeratorOptions Options;
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SearchConfig()
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: Policy(SearchPolicy::defaultPlan()), // default plan
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Options(SymbolEnumeratorOptions::defaultOptions()) {}
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};
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/// Scans libraries and resolves Symbols across user and system paths.
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///
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/// Supports symbol enumeration and filtering via SymbolEnumerator, and tracks
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/// symbol resolution results through SymbolQuery. Thread-safe and uses
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/// LibraryScanHelper for efficient path resolution and caching.
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class LibraryResolver {
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friend class LibraryResolutionDriver;
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public:
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class SymbolEnumerator {
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public:
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enum class EnumerateResult { Continue, Stop, Error };
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using OnEachSymbolFn = std::function<EnumerateResult(StringRef Sym)>;
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static bool enumerateSymbols(StringRef Path, OnEachSymbolFn OnEach,
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const SymbolEnumeratorOptions &Opts);
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};
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/// Tracks a set of symbols and the libraries where they are resolved.
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///
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/// SymbolQuery is used to keep track of which symbols have been resolved
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/// to which libraries. It supports concurrent read/write access using a
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/// shared mutex, allowing multiple readers or a single writer at a time.
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class SymbolQuery {
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public:
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/// Holds the result for a single symbol.
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struct Result {
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std::string Name;
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std::string ResolvedLibPath;
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};
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|
||||
private:
|
||||
mutable std::shared_mutex Mtx;
|
||||
StringMap<Result> Results;
|
||||
std::atomic<size_t> ResolvedCount = 0;
|
||||
|
||||
public:
|
||||
explicit SymbolQuery(const std::vector<std::string> &Symbols) {
|
||||
for (const auto &s : Symbols) {
|
||||
if (!Results.contains(s))
|
||||
Results.insert({s, Result{s, ""}});
|
||||
}
|
||||
}
|
||||
|
||||
SmallVector<StringRef> getUnresolvedSymbols() const {
|
||||
SmallVector<StringRef> Unresolved;
|
||||
std::shared_lock<std::shared_mutex> Lock(Mtx);
|
||||
for (const auto &[name, res] : Results) {
|
||||
if (res.ResolvedLibPath.empty())
|
||||
Unresolved.push_back(name);
|
||||
}
|
||||
return Unresolved;
|
||||
}
|
||||
|
||||
void resolve(StringRef Sym, const std::string &LibPath) {
|
||||
std::unique_lock<std::shared_mutex> Lock(Mtx);
|
||||
auto It = Results.find(Sym);
|
||||
if (It != Results.end() && It->second.ResolvedLibPath.empty()) {
|
||||
It->second.ResolvedLibPath = LibPath;
|
||||
ResolvedCount.fetch_add(1, std::memory_order_relaxed);
|
||||
}
|
||||
}
|
||||
|
||||
bool allResolved() const {
|
||||
return ResolvedCount.load(std::memory_order_relaxed) == Results.size();
|
||||
}
|
||||
|
||||
bool hasUnresolved() const {
|
||||
return ResolvedCount.load(std::memory_order_relaxed) < Results.size();
|
||||
}
|
||||
|
||||
std::optional<StringRef> getResolvedLib(StringRef Sym) const {
|
||||
std::shared_lock<std::shared_mutex> Lock(Mtx);
|
||||
auto It = Results.find(Sym);
|
||||
if (It != Results.end() && !It->second.ResolvedLibPath.empty())
|
||||
return StringRef(It->second.ResolvedLibPath);
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
bool isResolved(StringRef Sym) const {
|
||||
std::shared_lock<std::shared_mutex> Lock(Mtx);
|
||||
auto It = Results.find(Sym.str());
|
||||
return It != Results.end() && !It->second.ResolvedLibPath.empty();
|
||||
}
|
||||
|
||||
std::vector<const Result *> getAllResults() const {
|
||||
std::shared_lock<std::shared_mutex> Lock(Mtx);
|
||||
std::vector<const Result *> Out;
|
||||
Out.reserve(Results.size());
|
||||
for (const auto &[_, res] : Results)
|
||||
Out.push_back(&res);
|
||||
return Out;
|
||||
}
|
||||
};
|
||||
|
||||
struct Setup {
|
||||
std::vector<std::string> BasePaths;
|
||||
std::shared_ptr<LibraryPathCache> Cache;
|
||||
std::shared_ptr<PathResolver> PResolver;
|
||||
|
||||
size_t ScanBatchSize = 0;
|
||||
|
||||
LibraryScanner::ShouldScanFn ShouldScanCall = [](StringRef) {
|
||||
return true;
|
||||
};
|
||||
|
||||
BloomFilterBuilder FilterBuilder = BloomFilterBuilder();
|
||||
|
||||
static Setup
|
||||
create(std::vector<std::string> BasePaths,
|
||||
std::shared_ptr<LibraryPathCache> existingCache = nullptr,
|
||||
std::shared_ptr<PathResolver> existingResolver = nullptr,
|
||||
LibraryScanner::ShouldScanFn customShouldScan = nullptr) {
|
||||
Setup S;
|
||||
S.BasePaths = std::move(BasePaths);
|
||||
|
||||
S.Cache =
|
||||
existingCache ? existingCache : std::make_shared<LibraryPathCache>();
|
||||
|
||||
S.PResolver = existingResolver ? existingResolver
|
||||
: std::make_shared<PathResolver>(S.Cache);
|
||||
|
||||
if (customShouldScan)
|
||||
S.ShouldScanCall = std::move(customShouldScan);
|
||||
|
||||
return S;
|
||||
}
|
||||
};
|
||||
|
||||
LibraryResolver() = delete;
|
||||
explicit LibraryResolver(const Setup &S);
|
||||
~LibraryResolver() = default;
|
||||
|
||||
using OnSearchComplete = unique_function<void(SymbolQuery &)>;
|
||||
|
||||
void dump() {
|
||||
int i = 0;
|
||||
LibMgr.forEachLibrary([&](const LibraryInfo &Lib) -> bool {
|
||||
dbgs() << ++i << ". Library Path : " << Lib.getFullPath() << " -> \n\t\t:"
|
||||
<< " ({Type : ("
|
||||
<< (Lib.getKind() == PathType::User ? "User" : "System")
|
||||
<< ") }, { State : "
|
||||
<< (Lib.getState() == LibraryManager::LibState::Loaded
|
||||
? "Loaded"
|
||||
: "Unloaded")
|
||||
<< "})\n";
|
||||
return true;
|
||||
});
|
||||
}
|
||||
|
||||
void searchSymbolsInLibraries(std::vector<std::string> &SymList,
|
||||
OnSearchComplete OnComplete,
|
||||
const SearchConfig &Config = SearchConfig());
|
||||
|
||||
private:
|
||||
bool scanLibrariesIfNeeded(PathType K, size_t BatchSize = 0);
|
||||
void resolveSymbolsInLibrary(LibraryInfo &Lib, SymbolQuery &Q,
|
||||
const SymbolEnumeratorOptions &Opts);
|
||||
bool
|
||||
symbolExistsInLibrary(const LibraryInfo &Lib, StringRef Sym,
|
||||
std::vector<std::string> *MatchedSymbols = nullptr);
|
||||
|
||||
bool symbolExistsInLibrary(const LibraryInfo &Lib, StringRef SymName,
|
||||
std::vector<std::string> *AllSymbols,
|
||||
const SymbolEnumeratorOptions &Opts);
|
||||
|
||||
std::shared_ptr<LibraryPathCache> LibPathCache;
|
||||
std::shared_ptr<PathResolver> LibPathResolver;
|
||||
LibraryScanHelper ScanHelper;
|
||||
BloomFilterBuilder FB;
|
||||
LibraryManager LibMgr;
|
||||
LibraryScanner::ShouldScanFn ShouldScanCall;
|
||||
size_t scanBatchSize;
|
||||
};
|
||||
|
||||
using SymbolEnumerator = LibraryResolver::SymbolEnumerator;
|
||||
using SymbolQuery = LibraryResolver::SymbolQuery;
|
||||
using EnumerateResult = SymbolEnumerator::EnumerateResult;
|
||||
|
||||
class LibraryResolutionDriver {
|
||||
public:
|
||||
static std::unique_ptr<LibraryResolutionDriver>
|
||||
create(const LibraryResolver::Setup &S);
|
||||
|
||||
void addScanPath(const std::string &Path, PathType Kind);
|
||||
bool markLibraryLoaded(StringRef Path);
|
||||
bool markLibraryUnLoaded(StringRef Path);
|
||||
bool isLibraryLoaded(StringRef Path) const {
|
||||
return LR->LibMgr.isLoaded(Path);
|
||||
}
|
||||
|
||||
void resetAll() {
|
||||
LR->LibMgr.clear();
|
||||
LR->ScanHelper.resetToScan();
|
||||
LR->LibPathCache->clear();
|
||||
}
|
||||
|
||||
void scanAll(size_t BatchSize = 0) {
|
||||
LR->scanLibrariesIfNeeded(PathType::User, BatchSize);
|
||||
LR->scanLibrariesIfNeeded(PathType::System, BatchSize);
|
||||
}
|
||||
|
||||
void scan(PathType PK, size_t BatchSize = 0) {
|
||||
LR->scanLibrariesIfNeeded(PK, BatchSize);
|
||||
}
|
||||
|
||||
void resolveSymbols(std::vector<std::string> Symbols,
|
||||
LibraryResolver::OnSearchComplete OnCompletion,
|
||||
const SearchConfig &Config = SearchConfig());
|
||||
|
||||
~LibraryResolutionDriver() = default;
|
||||
|
||||
private:
|
||||
LibraryResolutionDriver(std::unique_ptr<LibraryResolver> L)
|
||||
: LR(std::move(L)) {}
|
||||
|
||||
std::unique_ptr<LibraryResolver> LR;
|
||||
};
|
||||
|
||||
} // end namespace orc
|
||||
} // end namespace llvm
|
||||
|
||||
#endif // LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_LIBRARYRESOLVER_H
|
||||
@ -1,474 +0,0 @@
|
||||
//===- LibraryScanner.h - Scanner for Shared Libraries ---------*- 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 file provides functionality for scanning dynamic (shared) libraries.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_LIBRARYSCANNER_H
|
||||
#define LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_LIBRARYSCANNER_H
|
||||
|
||||
#include "llvm/ADT/FunctionExtras.h"
|
||||
#include "llvm/ADT/SmallVector.h"
|
||||
#include "llvm/ADT/StringRef.h"
|
||||
#include "llvm/ADT/StringSet.h"
|
||||
#include "llvm/Object/ObjectFile.h"
|
||||
#include "llvm/Support/Allocator.h"
|
||||
#include "llvm/Support/Error.h"
|
||||
#include "llvm/Support/StringSaver.h"
|
||||
|
||||
#include <atomic>
|
||||
#include <mutex>
|
||||
#include <queue>
|
||||
#include <shared_mutex>
|
||||
#include <string>
|
||||
#include <unordered_map>
|
||||
#include <unordered_set>
|
||||
|
||||
namespace llvm {
|
||||
namespace orc {
|
||||
|
||||
class LibraryManager;
|
||||
|
||||
class LibraryPathCache {
|
||||
friend class PathResolver;
|
||||
|
||||
public:
|
||||
LibraryPathCache() = default;
|
||||
|
||||
void clear(bool isRealPathCache = false) {
|
||||
std::unique_lock<std::shared_mutex> lock(Mtx);
|
||||
Seen.clear();
|
||||
if (isRealPathCache) {
|
||||
RealPathCache.clear();
|
||||
#ifndef _WIN32
|
||||
ReadlinkCache.clear();
|
||||
LstatCache.clear();
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
void markSeen(const std::string &CanonPath) {
|
||||
std::unique_lock<std::shared_mutex> lock(Mtx);
|
||||
Seen.insert(CanonPath);
|
||||
}
|
||||
|
||||
bool hasSeen(StringRef CanonPath) const {
|
||||
std::shared_lock<std::shared_mutex> lock(Mtx);
|
||||
return Seen.contains(CanonPath);
|
||||
}
|
||||
|
||||
bool hasSeenOrMark(StringRef CanonPath) {
|
||||
std::string s = CanonPath.str();
|
||||
{
|
||||
std::shared_lock<std::shared_mutex> lock(Mtx);
|
||||
if (Seen.contains(s))
|
||||
return true;
|
||||
}
|
||||
{
|
||||
std::unique_lock<std::shared_mutex> lock(Mtx);
|
||||
Seen.insert(s);
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
private:
|
||||
mutable std::shared_mutex Mtx;
|
||||
|
||||
struct PathInfo {
|
||||
std::string canonicalPath;
|
||||
std::error_code ErrnoCode;
|
||||
};
|
||||
|
||||
void insert_realpath(StringRef Path, const PathInfo &Info) {
|
||||
std::unique_lock<std::shared_mutex> lock(Mtx);
|
||||
RealPathCache.insert({Path, Info});
|
||||
}
|
||||
|
||||
std::optional<PathInfo> read_realpath(StringRef Path) const {
|
||||
std::shared_lock<std::shared_mutex> lock(Mtx);
|
||||
auto It = RealPathCache.find(Path);
|
||||
if (It != RealPathCache.end())
|
||||
return It->second;
|
||||
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
StringSet<> Seen;
|
||||
StringMap<PathInfo> RealPathCache;
|
||||
|
||||
#ifndef _WIN32
|
||||
StringMap<std::string> ReadlinkCache;
|
||||
StringMap<mode_t> LstatCache;
|
||||
|
||||
void insert_link(StringRef Path, const std::string &s) {
|
||||
std::unique_lock<std::shared_mutex> lock(Mtx);
|
||||
ReadlinkCache.insert({Path, s});
|
||||
}
|
||||
|
||||
std::optional<std::string> read_link(StringRef Path) const {
|
||||
std::shared_lock<std::shared_mutex> lock(Mtx);
|
||||
auto It = ReadlinkCache.find(Path);
|
||||
if (It != ReadlinkCache.end())
|
||||
return It->second;
|
||||
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
void insert_lstat(StringRef Path, mode_t m) {
|
||||
std::unique_lock<std::shared_mutex> lock(Mtx);
|
||||
LstatCache.insert({Path, m});
|
||||
}
|
||||
|
||||
std::optional<mode_t> read_lstat(StringRef Path) const {
|
||||
std::shared_lock<std::shared_mutex> lock(Mtx);
|
||||
auto It = LstatCache.find(Path);
|
||||
if (It != LstatCache.end())
|
||||
return It->second;
|
||||
|
||||
return std::nullopt;
|
||||
}
|
||||
|
||||
#endif
|
||||
};
|
||||
|
||||
/// Resolves file system paths with optional caching of results.
|
||||
///
|
||||
/// Supports lstat, readlink, and realpath operations. Can resolve paths
|
||||
/// relative to a base and handle symbolic links. Caches results to reduce
|
||||
/// repeated system calls when enabled.
|
||||
class PathResolver {
|
||||
private:
|
||||
std::shared_ptr<LibraryPathCache> LibPathCache;
|
||||
|
||||
public:
|
||||
PathResolver(std::shared_ptr<LibraryPathCache> cache)
|
||||
: LibPathCache(std::move(cache)) {}
|
||||
|
||||
std::optional<std::string> resolve(StringRef Path, std::error_code &ec) {
|
||||
return realpathCached(Path, ec);
|
||||
}
|
||||
#ifndef _WIN32
|
||||
mode_t lstatCached(StringRef Path);
|
||||
std::optional<std::string> readlinkCached(StringRef Path);
|
||||
#endif
|
||||
std::optional<std::string> realpathCached(StringRef Path, std::error_code &ec,
|
||||
StringRef base = "",
|
||||
bool baseIsResolved = false,
|
||||
long symloopLevel = 40);
|
||||
};
|
||||
|
||||
/// Performs placeholder substitution in dynamic library paths.
|
||||
///
|
||||
/// Configures known placeholders (like @loader_path) and replaces them
|
||||
/// in input paths with their resolved values.
|
||||
class DylibSubstitutor {
|
||||
public:
|
||||
void configure(StringRef loaderPath);
|
||||
|
||||
std::string substitute(StringRef input) const {
|
||||
for (const auto &[ph, value] : Placeholders) {
|
||||
if (input.starts_with_insensitive(ph))
|
||||
return (Twine(value) + input.drop_front(ph.size())).str();
|
||||
}
|
||||
return input.str();
|
||||
}
|
||||
|
||||
private:
|
||||
StringMap<std::string> Placeholders;
|
||||
};
|
||||
|
||||
/// Validates and normalizes dynamic library paths.
|
||||
///
|
||||
/// Uses a `PathResolver` to resolve paths to their canonical form and
|
||||
/// checks whether they point to valid shared libraries.
|
||||
class DylibPathValidator {
|
||||
public:
|
||||
DylibPathValidator(PathResolver &PR) : LibPathResolver(PR) {}
|
||||
|
||||
static bool isSharedLibrary(StringRef Path);
|
||||
|
||||
std::optional<std::string> normalize(StringRef Path) const {
|
||||
std::error_code ec;
|
||||
auto real = LibPathResolver.resolve(Path, ec);
|
||||
if (!real || ec)
|
||||
return std::nullopt;
|
||||
|
||||
return real;
|
||||
}
|
||||
|
||||
/// Validate the given path as a shared library.
|
||||
std::optional<std::string> validate(StringRef Path) const {
|
||||
auto realOpt = normalize(Path);
|
||||
if (!realOpt)
|
||||
return std::nullopt;
|
||||
|
||||
if (!isSharedLibrary(*realOpt))
|
||||
return std::nullopt;
|
||||
|
||||
return realOpt;
|
||||
}
|
||||
|
||||
private:
|
||||
PathResolver &LibPathResolver;
|
||||
};
|
||||
|
||||
enum class SearchPathType {
|
||||
RPath,
|
||||
UsrOrSys,
|
||||
RunPath,
|
||||
};
|
||||
|
||||
struct SearchPathConfig {
|
||||
ArrayRef<StringRef> Paths;
|
||||
SearchPathType type;
|
||||
};
|
||||
|
||||
class SearchPathResolver {
|
||||
public:
|
||||
SearchPathResolver(const SearchPathConfig &Cfg,
|
||||
StringRef PlaceholderPrefix = "")
|
||||
: Kind(Cfg.type), PlaceholderPrefix(PlaceholderPrefix) {
|
||||
for (auto &path : Cfg.Paths)
|
||||
Paths.emplace_back(path.str());
|
||||
}
|
||||
|
||||
std::optional<std::string> resolve(StringRef libStem,
|
||||
const DylibSubstitutor &Subst,
|
||||
DylibPathValidator &Validator) const;
|
||||
SearchPathType searchPathType() const { return Kind; }
|
||||
|
||||
private:
|
||||
std::vector<std::string> Paths;
|
||||
SearchPathType Kind;
|
||||
std::string PlaceholderPrefix;
|
||||
};
|
||||
|
||||
class DylibResolverImpl {
|
||||
public:
|
||||
DylibResolverImpl(DylibSubstitutor Substitutor, DylibPathValidator &Validator,
|
||||
std::vector<SearchPathResolver> Resolvers)
|
||||
: Substitutor(std::move(Substitutor)), Validator(Validator),
|
||||
Resolvers(std::move(Resolvers)) {}
|
||||
|
||||
std::optional<std::string> resolve(StringRef Stem,
|
||||
bool VariateLibStem = false) const;
|
||||
|
||||
private:
|
||||
std::optional<std::string> tryWithExtensions(StringRef libstem) const;
|
||||
|
||||
DylibSubstitutor Substitutor;
|
||||
DylibPathValidator &Validator;
|
||||
std::vector<SearchPathResolver> Resolvers;
|
||||
};
|
||||
|
||||
class DylibResolver {
|
||||
public:
|
||||
DylibResolver(DylibPathValidator &Validator) : Validator(Validator) {}
|
||||
|
||||
void configure(StringRef loaderPath,
|
||||
ArrayRef<SearchPathConfig> SearchPathCfg) {
|
||||
DylibSubstitutor Substitutor;
|
||||
Substitutor.configure(loaderPath);
|
||||
|
||||
std::vector<SearchPathResolver> Resolvers;
|
||||
for (const auto &cfg : SearchPathCfg) {
|
||||
Resolvers.emplace_back(cfg,
|
||||
cfg.type == SearchPathType::RPath ? "@rpath" : "");
|
||||
}
|
||||
|
||||
impl_ = std::make_unique<DylibResolverImpl>(
|
||||
std::move(Substitutor), Validator, std::move(Resolvers));
|
||||
}
|
||||
|
||||
std::optional<std::string> resolve(StringRef libStem,
|
||||
bool VariateLibStem = false) const {
|
||||
if (!impl_)
|
||||
return std::nullopt;
|
||||
return impl_->resolve(libStem, VariateLibStem);
|
||||
}
|
||||
|
||||
static std::string resolvelinkerFlag(StringRef libStem,
|
||||
StringRef loaderPath) {
|
||||
DylibSubstitutor Substitutor;
|
||||
Substitutor.configure(loaderPath);
|
||||
return Substitutor.substitute(libStem);
|
||||
}
|
||||
|
||||
private:
|
||||
DylibPathValidator &Validator;
|
||||
std::unique_ptr<DylibResolverImpl> impl_;
|
||||
};
|
||||
|
||||
enum class PathType : uint8_t { User, System, Unknown };
|
||||
|
||||
enum class ScanState : uint8_t { NotScanned, Scanning, Scanned };
|
||||
|
||||
struct LibrarySearchPath {
|
||||
std::string BasePath; // Canonical base directory path
|
||||
PathType Kind; // User or System
|
||||
std::atomic<ScanState> State;
|
||||
|
||||
LibrarySearchPath(std::string Base, PathType K)
|
||||
: BasePath(std::move(Base)), Kind(K), State(ScanState::NotScanned) {}
|
||||
};
|
||||
|
||||
/// Scans and tracks libraries for symbol resolution.
|
||||
///
|
||||
/// Maintains a list of library paths to scan, caches scanned units,
|
||||
/// and resolves paths canonically for consistent tracking.
|
||||
class LibraryScanHelper {
|
||||
public:
|
||||
explicit LibraryScanHelper(const std::vector<std::string> &SPaths,
|
||||
std::shared_ptr<LibraryPathCache> LibPathCache,
|
||||
std::shared_ptr<PathResolver> LibPathResolver)
|
||||
: LibPathCache(std::move(LibPathCache)),
|
||||
LibPathResolver(std::move(LibPathResolver)) {
|
||||
DEBUG_WITH_TYPE(
|
||||
"orc", dbgs() << "LibraryScanHelper::LibraryScanHelper: base paths : "
|
||||
<< SPaths.size() << "\n";);
|
||||
for (const auto &p : SPaths)
|
||||
addBasePath(p);
|
||||
}
|
||||
|
||||
void
|
||||
addBasePath(const std::string &P,
|
||||
PathType Kind =
|
||||
PathType::Unknown); // Add a canonical directory for scanning
|
||||
std::vector<std::shared_ptr<LibrarySearchPath>>
|
||||
getNextBatch(PathType Kind, size_t batchSize);
|
||||
|
||||
bool leftToScan(PathType K) const;
|
||||
void resetToScan();
|
||||
|
||||
bool isTrackedBasePath(StringRef P) const;
|
||||
std::vector<std::shared_ptr<LibrarySearchPath>> getAllUnits() const;
|
||||
|
||||
SmallVector<StringRef> getSearchPaths() const {
|
||||
SmallVector<StringRef> SearchPaths;
|
||||
for (const auto &[_, SP] : LibSearchPaths)
|
||||
SearchPaths.push_back(SP->BasePath);
|
||||
return SearchPaths;
|
||||
}
|
||||
|
||||
PathResolver &getPathResolver() const { return *LibPathResolver; }
|
||||
|
||||
LibraryPathCache &getCache() const { return *LibPathCache; }
|
||||
|
||||
bool hasSeenOrMark(StringRef P) const {
|
||||
return LibPathCache->hasSeenOrMark(P);
|
||||
}
|
||||
|
||||
std::optional<std::string> resolve(StringRef P, std::error_code &ec) const {
|
||||
return LibPathResolver->resolve(P.str(), ec);
|
||||
}
|
||||
|
||||
private:
|
||||
std::string resolveCanonical(StringRef P, std::error_code &ec) const;
|
||||
PathType classifyKind(StringRef P) const;
|
||||
|
||||
mutable std::shared_mutex Mtx;
|
||||
std::shared_ptr<LibraryPathCache> LibPathCache;
|
||||
std::shared_ptr<PathResolver> LibPathResolver;
|
||||
|
||||
StringMap<std::shared_ptr<LibrarySearchPath>>
|
||||
LibSearchPaths; // key: canonical path
|
||||
std::deque<StringRef> UnscannedUsr;
|
||||
std::deque<StringRef> UnscannedSys;
|
||||
};
|
||||
|
||||
/// Loads an object file and provides access to it.
|
||||
///
|
||||
/// Owns the underlying `ObjectFile` and ensures it is valid.
|
||||
/// Any errors encountered during construction are stored and
|
||||
/// returned when attempting to access the file.
|
||||
class ObjectFileLoader {
|
||||
public:
|
||||
/// Construct an object file loader from the given path.
|
||||
explicit ObjectFileLoader(StringRef Path) {
|
||||
auto ObjOrErr = loadObjectFileWithOwnership(Path);
|
||||
if (ObjOrErr)
|
||||
Obj = std::move(*ObjOrErr);
|
||||
else {
|
||||
consumeError(std::move(Err));
|
||||
Err = ObjOrErr.takeError();
|
||||
}
|
||||
}
|
||||
|
||||
ObjectFileLoader(const ObjectFileLoader &) = delete;
|
||||
ObjectFileLoader &operator=(const ObjectFileLoader &) = delete;
|
||||
|
||||
ObjectFileLoader(ObjectFileLoader &&) = default;
|
||||
ObjectFileLoader &operator=(ObjectFileLoader &&) = default;
|
||||
|
||||
/// Get the loaded object file, or return an error if loading failed.
|
||||
Expected<object::ObjectFile &> getObjectFile() {
|
||||
if (Err)
|
||||
return std::move(Err);
|
||||
return *Obj.getBinary();
|
||||
}
|
||||
|
||||
static bool isArchitectureCompatible(const object::ObjectFile &Obj);
|
||||
|
||||
private:
|
||||
object::OwningBinary<object::ObjectFile> Obj;
|
||||
Error Err = Error::success();
|
||||
|
||||
static Expected<object::OwningBinary<object::ObjectFile>>
|
||||
loadObjectFileWithOwnership(StringRef FilePath);
|
||||
};
|
||||
|
||||
/// Scans libraries, resolves dependencies, and registers them.
|
||||
class LibraryScanner {
|
||||
public:
|
||||
using ShouldScanFn = std::function<bool(StringRef)>;
|
||||
|
||||
LibraryScanner(
|
||||
LibraryScanHelper &H, LibraryManager &LibMgr,
|
||||
ShouldScanFn ShouldScanCall = [](StringRef path) { return true; })
|
||||
: ScanHelper(H), LibMgr(LibMgr),
|
||||
ShouldScanCall(std::move(ShouldScanCall)) {}
|
||||
|
||||
void scanNext(PathType Kind, size_t batchSize = 1);
|
||||
|
||||
/// Dependency info for a library.
|
||||
struct LibraryDepsInfo {
|
||||
llvm::BumpPtrAllocator Alloc;
|
||||
llvm::StringSaver Saver{Alloc};
|
||||
|
||||
SmallVector<StringRef, 2> rpath;
|
||||
SmallVector<StringRef, 2> runPath;
|
||||
SmallVector<StringRef, 4> deps;
|
||||
bool isPIE = false;
|
||||
|
||||
void addRPath(StringRef s) { rpath.push_back(Saver.save(s)); }
|
||||
|
||||
void addRunPath(StringRef s) { runPath.push_back(Saver.save(s)); }
|
||||
|
||||
void addDep(StringRef s) { deps.push_back(Saver.save(s)); }
|
||||
};
|
||||
|
||||
private:
|
||||
LibraryScanHelper &ScanHelper;
|
||||
LibraryManager &LibMgr;
|
||||
ShouldScanFn ShouldScanCall;
|
||||
|
||||
std::optional<std::string> shouldScan(StringRef FilePath);
|
||||
Expected<LibraryDepsInfo> extractDeps(StringRef FilePath);
|
||||
|
||||
void handleLibrary(StringRef P, PathType K, int level = 1);
|
||||
|
||||
void scanBaseDir(std::shared_ptr<LibrarySearchPath> U);
|
||||
};
|
||||
|
||||
using LibraryDepsInfo = LibraryScanner::LibraryDepsInfo;
|
||||
|
||||
} // end namespace orc
|
||||
} // end namespace llvm
|
||||
|
||||
#endif // LLVM_EXECUTIONENGINE_ORC_TARGETPROCESS_LIBRARYSCANNER_H
|
||||
@ -16,11 +16,9 @@ add_llvm_component_library(LLVMOrcTargetProcess
|
||||
ExecutorSharedMemoryMapperService.cpp
|
||||
DefaultHostBootstrapValues.cpp
|
||||
ExecutorResolver.cpp
|
||||
LibraryResolver.cpp
|
||||
JITLoaderGDB.cpp
|
||||
JITLoaderPerf.cpp
|
||||
JITLoaderVTune.cpp
|
||||
LibraryScanner.cpp
|
||||
OrcRTBootstrap.cpp
|
||||
RegisterEHFrames.cpp
|
||||
SimpleExecutorDylibManager.cpp
|
||||
|
||||
@ -1,369 +0,0 @@
|
||||
//===- LibraryResolver.cpp - Library Resolution of Unresolved Symbols ---===//
|
||||
//
|
||||
// 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
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// Library resolution impl for unresolved symbols
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "llvm/ExecutionEngine/Orc/TargetProcess/LibraryResolver.h"
|
||||
#include "llvm/ExecutionEngine/Orc/TargetProcess/LibraryScanner.h"
|
||||
|
||||
#include "llvm/ADT/StringSet.h"
|
||||
|
||||
#include "llvm/BinaryFormat/MachO.h"
|
||||
#include "llvm/Object/COFF.h"
|
||||
#include "llvm/Object/ELF.h"
|
||||
#include "llvm/Object/ELFObjectFile.h"
|
||||
#include "llvm/Object/MachO.h"
|
||||
#include "llvm/Object/ObjectFile.h"
|
||||
#include "llvm/Support/Error.h"
|
||||
|
||||
#include <mutex>
|
||||
#include <thread>
|
||||
|
||||
#define DEBUG_TYPE "orc-resolver"
|
||||
|
||||
namespace llvm::orc {
|
||||
|
||||
LibraryResolver::LibraryResolver(const LibraryResolver::Setup &S)
|
||||
: LibPathCache(S.Cache ? S.Cache : std::make_shared<LibraryPathCache>()),
|
||||
LibPathResolver(S.PResolver
|
||||
? S.PResolver
|
||||
: std::make_shared<PathResolver>(LibPathCache)),
|
||||
ScanHelper(S.BasePaths, LibPathCache, LibPathResolver),
|
||||
FB(S.FilterBuilder), LibMgr(),
|
||||
ShouldScanCall(S.ShouldScanCall ? S.ShouldScanCall
|
||||
: [](StringRef) -> bool { return true; }),
|
||||
scanBatchSize(S.ScanBatchSize) {
|
||||
|
||||
if (ScanHelper.getAllUnits().empty()) {
|
||||
LLVM_DEBUG(dbgs() << "Warning: No base paths provided for scanning.\n");
|
||||
}
|
||||
}
|
||||
|
||||
std::unique_ptr<LibraryResolutionDriver>
|
||||
LibraryResolutionDriver::create(const LibraryResolver::Setup &S) {
|
||||
auto LR = std::make_unique<LibraryResolver>(S);
|
||||
return std::unique_ptr<LibraryResolutionDriver>(
|
||||
new LibraryResolutionDriver(std::move(LR)));
|
||||
}
|
||||
|
||||
void LibraryResolutionDriver::addScanPath(const std::string &Path, PathType K) {
|
||||
LR->ScanHelper.addBasePath(Path, K);
|
||||
}
|
||||
|
||||
bool LibraryResolutionDriver::markLibraryLoaded(StringRef Path) {
|
||||
auto Lib = LR->LibMgr.getLibrary(Path);
|
||||
if (!Lib)
|
||||
return false;
|
||||
|
||||
Lib->setState(LibraryManager::LibState::Loaded);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool LibraryResolutionDriver::markLibraryUnLoaded(StringRef Path) {
|
||||
auto Lib = LR->LibMgr.getLibrary(Path);
|
||||
if (!Lib)
|
||||
return false;
|
||||
|
||||
Lib->setState(LibraryManager::LibState::Unloaded);
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void LibraryResolutionDriver::resolveSymbols(
|
||||
std::vector<std::string> Syms,
|
||||
LibraryResolver::OnSearchComplete OnCompletion,
|
||||
const SearchConfig &Config) {
|
||||
LR->searchSymbolsInLibraries(Syms, std::move(OnCompletion), Config);
|
||||
}
|
||||
|
||||
static bool shouldIgnoreSymbol(const object::SymbolRef &Sym,
|
||||
uint32_t IgnoreFlags) {
|
||||
Expected<uint32_t> FlagsOrErr = Sym.getFlags();
|
||||
if (!FlagsOrErr) {
|
||||
consumeError(FlagsOrErr.takeError());
|
||||
return true;
|
||||
}
|
||||
|
||||
uint32_t Flags = *FlagsOrErr;
|
||||
|
||||
using Filter = SymbolEnumeratorOptions;
|
||||
if ((IgnoreFlags & Filter::IgnoreUndefined) &&
|
||||
(Flags & object::SymbolRef::SF_Undefined))
|
||||
return true;
|
||||
if ((IgnoreFlags & Filter::IgnoreIndirect) &&
|
||||
(Flags & object::SymbolRef::SF_Indirect))
|
||||
return true;
|
||||
if ((IgnoreFlags & Filter::IgnoreWeak) &&
|
||||
(Flags & object::SymbolRef::SF_Weak))
|
||||
return true;
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
bool SymbolEnumerator::enumerateSymbols(StringRef Path, OnEachSymbolFn OnEach,
|
||||
const SymbolEnumeratorOptions &Opts) {
|
||||
if (Path.empty())
|
||||
return false;
|
||||
|
||||
ObjectFileLoader ObjLoader(Path);
|
||||
|
||||
auto ObjOrErr = ObjLoader.getObjectFile();
|
||||
if (!ObjOrErr) {
|
||||
std::string ErrMsg;
|
||||
handleAllErrors(ObjOrErr.takeError(),
|
||||
[&](const ErrorInfoBase &EIB) { ErrMsg = EIB.message(); });
|
||||
LLVM_DEBUG(dbgs() << "Failed loading object file: " << Path
|
||||
<< "\nError: " << ErrMsg << "\n");
|
||||
return false;
|
||||
}
|
||||
|
||||
object::ObjectFile *Obj = &ObjOrErr.get();
|
||||
|
||||
auto processSymbolRange =
|
||||
[&](object::ObjectFile::symbol_iterator_range Range) -> EnumerateResult {
|
||||
for (const auto &Sym : Range) {
|
||||
if (shouldIgnoreSymbol(Sym, Opts.FilterFlags))
|
||||
continue;
|
||||
|
||||
auto NameOrErr = Sym.getName();
|
||||
if (!NameOrErr) {
|
||||
consumeError(NameOrErr.takeError());
|
||||
continue;
|
||||
}
|
||||
|
||||
StringRef Name = *NameOrErr;
|
||||
if (Name.empty())
|
||||
continue;
|
||||
|
||||
EnumerateResult Res = OnEach(Name);
|
||||
if (Res != EnumerateResult::Continue)
|
||||
return Res;
|
||||
}
|
||||
return EnumerateResult::Continue;
|
||||
};
|
||||
|
||||
EnumerateResult Res = processSymbolRange(Obj->symbols());
|
||||
if (Res != EnumerateResult::Continue)
|
||||
return Res == EnumerateResult::Stop;
|
||||
|
||||
if (Obj->isELF()) {
|
||||
const auto *ElfObj = cast<object::ELFObjectFileBase>(Obj);
|
||||
Res = processSymbolRange(ElfObj->getDynamicSymbolIterators());
|
||||
if (Res != EnumerateResult::Continue)
|
||||
return Res == EnumerateResult::Stop;
|
||||
} else if (Obj->isCOFF()) {
|
||||
const auto *CoffObj = cast<object::COFFObjectFile>(Obj);
|
||||
for (auto I = CoffObj->export_directory_begin(),
|
||||
E = CoffObj->export_directory_end();
|
||||
I != E; ++I) {
|
||||
StringRef Name;
|
||||
if (I->getSymbolName(Name))
|
||||
continue;
|
||||
if (Name.empty())
|
||||
continue;
|
||||
|
||||
if (OnEach(Name) != EnumerateResult::Continue)
|
||||
return false;
|
||||
}
|
||||
} else if (Obj->isMachO()) {
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
class SymbolSearchContext {
|
||||
public:
|
||||
SymbolSearchContext(SymbolQuery &Q) : Q(Q) {}
|
||||
|
||||
bool hasSearched(LibraryInfo *Lib) const { return Searched.count(Lib); }
|
||||
|
||||
void markSearched(LibraryInfo *Lib) { Searched.insert(Lib); }
|
||||
|
||||
inline bool allResolved() const { return Q.allResolved(); }
|
||||
|
||||
SymbolQuery &query() { return Q; }
|
||||
|
||||
private:
|
||||
SymbolQuery &Q;
|
||||
DenseSet<LibraryInfo *> Searched;
|
||||
};
|
||||
|
||||
void LibraryResolver::resolveSymbolsInLibrary(
|
||||
LibraryInfo &Lib, SymbolQuery &UnresolvedSymbols,
|
||||
const SymbolEnumeratorOptions &Opts) {
|
||||
LLVM_DEBUG(dbgs() << "Checking unresolved symbols "
|
||||
<< " in library : " << Lib.getFileName() << "\n";);
|
||||
StringSet<> DiscoveredSymbols;
|
||||
|
||||
if (!UnresolvedSymbols.hasUnresolved()) {
|
||||
LLVM_DEBUG(dbgs() << "Skipping library: " << Lib.getFullPath()
|
||||
<< " — unresolved symbols exist.\n";);
|
||||
return;
|
||||
}
|
||||
|
||||
bool HasEnumerated = false;
|
||||
auto enumerateSymbolsIfNeeded = [&]() {
|
||||
if (HasEnumerated)
|
||||
return;
|
||||
|
||||
HasEnumerated = true;
|
||||
|
||||
LLVM_DEBUG(dbgs() << "Enumerating symbols in library: " << Lib.getFullPath()
|
||||
<< "\n";);
|
||||
SymbolEnumerator::enumerateSymbols(
|
||||
Lib.getFullPath(),
|
||||
[&](StringRef sym) {
|
||||
DiscoveredSymbols.insert(sym);
|
||||
return EnumerateResult::Continue;
|
||||
},
|
||||
Opts);
|
||||
|
||||
if (DiscoveredSymbols.empty()) {
|
||||
LLVM_DEBUG(dbgs() << " No symbols and remove library : "
|
||||
<< Lib.getFullPath() << "\n";);
|
||||
LibMgr.removeLibrary(Lib.getFullPath());
|
||||
return;
|
||||
}
|
||||
};
|
||||
|
||||
if (!Lib.hasFilter()) {
|
||||
LLVM_DEBUG(dbgs() << "Building filter for library: " << Lib.getFullPath()
|
||||
<< "\n";);
|
||||
enumerateSymbolsIfNeeded();
|
||||
SmallVector<StringRef> SymbolVec;
|
||||
SymbolVec.reserve(DiscoveredSymbols.size());
|
||||
for (const auto &KV : DiscoveredSymbols)
|
||||
SymbolVec.push_back(KV.first());
|
||||
|
||||
Lib.ensureFilterBuilt(FB, SymbolVec);
|
||||
LLVM_DEBUG({
|
||||
dbgs() << "DiscoveredSymbols : " << DiscoveredSymbols.size() << "\n";
|
||||
for (const auto &KV : DiscoveredSymbols)
|
||||
dbgs() << "DiscoveredSymbols : " << KV.first() << "\n";
|
||||
});
|
||||
}
|
||||
|
||||
const auto &Unresolved = UnresolvedSymbols.getUnresolvedSymbols();
|
||||
bool HadAnySym = false;
|
||||
LLVM_DEBUG(dbgs() << "Total unresolved symbols : " << Unresolved.size()
|
||||
<< "\n";);
|
||||
for (const auto &Sym : Unresolved) {
|
||||
if (Lib.mayContain(Sym)) {
|
||||
LLVM_DEBUG(dbgs() << "Checking symbol '" << Sym
|
||||
<< "' in library: " << Lib.getFullPath() << "\n";);
|
||||
enumerateSymbolsIfNeeded();
|
||||
if (DiscoveredSymbols.count(Sym) > 0) {
|
||||
LLVM_DEBUG(dbgs() << " Resolved symbol: " << Sym
|
||||
<< " in library: " << Lib.getFullPath() << "\n";);
|
||||
UnresolvedSymbols.resolve(Sym, Lib.getFullPath());
|
||||
HadAnySym = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
using LibraryState = LibraryManager::LibState;
|
||||
if (HadAnySym && Lib.getState() != LibraryState::Loaded)
|
||||
Lib.setState(LibraryState::Queried);
|
||||
}
|
||||
|
||||
void LibraryResolver::searchSymbolsInLibraries(
|
||||
std::vector<std::string> &SymbolList, OnSearchComplete OnComplete,
|
||||
const SearchConfig &Config) {
|
||||
SymbolQuery Q(SymbolList);
|
||||
|
||||
using LibraryState = LibraryManager::LibState;
|
||||
using LibraryType = PathType;
|
||||
auto tryResolveFrom = [&](LibraryState S, LibraryType K) {
|
||||
LLVM_DEBUG(dbgs() << "Trying resolve from state=" << static_cast<int>(S)
|
||||
<< " type=" << static_cast<int>(K) << "\n";);
|
||||
|
||||
SymbolSearchContext Ctx(Q);
|
||||
while (!Ctx.allResolved()) {
|
||||
|
||||
for (auto &Lib : LibMgr.getView(S, K)) {
|
||||
if (Ctx.hasSearched(Lib.get()))
|
||||
continue;
|
||||
|
||||
// can use Async here?
|
||||
resolveSymbolsInLibrary(*Lib, Ctx.query(), Config.Options);
|
||||
Ctx.markSearched(Lib.get());
|
||||
|
||||
if (Ctx.allResolved())
|
||||
return;
|
||||
}
|
||||
|
||||
if (Ctx.allResolved())
|
||||
return;
|
||||
|
||||
if (!scanLibrariesIfNeeded(K, scanBatchSize))
|
||||
break; // no more new libs to scan
|
||||
}
|
||||
};
|
||||
|
||||
for (const auto &[St, Ty] : Config.Policy.Plan) {
|
||||
tryResolveFrom(St, Ty);
|
||||
if (Q.allResolved())
|
||||
break;
|
||||
}
|
||||
|
||||
// done:
|
||||
LLVM_DEBUG({
|
||||
dbgs() << "Search complete.\n";
|
||||
for (const auto &r : Q.getAllResults())
|
||||
dbgs() << "Resolved Symbol:" << r->Name << " -> " << r->ResolvedLibPath
|
||||
<< "\n";
|
||||
});
|
||||
|
||||
OnComplete(Q);
|
||||
}
|
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|
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bool LibraryResolver::scanLibrariesIfNeeded(PathType PK, size_t BatchSize) {
|
||||
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|
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<< (PK == PathType::User ? "User" : "System")
|
||||
<< " libraries\n";);
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if (!ScanHelper.leftToScan(PK))
|
||||
return false;
|
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|
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LibraryScanner Scanner(ScanHelper, LibMgr, ShouldScanCall);
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Scanner.scanNext(PK, BatchSize);
|
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return true;
|
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bool LibraryResolver::symbolExistsInLibrary(const LibraryInfo &Lib,
|
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StringRef SymName,
|
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std::vector<std::string> *AllSyms) {
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SymbolEnumeratorOptions Opts;
|
||||
return symbolExistsInLibrary(Lib, SymName, AllSyms, Opts);
|
||||
}
|
||||
|
||||
bool LibraryResolver::symbolExistsInLibrary(
|
||||
const LibraryInfo &Lib, StringRef SymName,
|
||||
std::vector<std::string> *AllSyms, const SymbolEnumeratorOptions &Opts) {
|
||||
bool Found = false;
|
||||
|
||||
SymbolEnumerator::enumerateSymbols(
|
||||
Lib.getFullPath(),
|
||||
[&](StringRef Sym) {
|
||||
if (AllSyms)
|
||||
AllSyms->emplace_back(Sym.str());
|
||||
|
||||
if (Sym == SymName) {
|
||||
Found = true;
|
||||
}
|
||||
|
||||
return EnumerateResult::Continue;
|
||||
},
|
||||
Opts);
|
||||
|
||||
return Found;
|
||||
}
|
||||
|
||||
} // end namespace llvm::orc
|
||||
File diff suppressed because it is too large
Load Diff
@ -25,7 +25,6 @@ add_llvm_unittest(OrcJITTests
|
||||
IndirectionUtilsTest.cpp
|
||||
JITTargetMachineBuilderTest.cpp
|
||||
LazyCallThroughAndReexportsTest.cpp
|
||||
LibraryResolverTest.cpp
|
||||
LookupAndRecordAddrsTest.cpp
|
||||
MachOPlatformTest.cpp
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MapperJITLinkMemoryManagerTest.cpp
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@ -1,886 +0,0 @@
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//===- LibraryResolverTest.cpp - Unit tests for LibraryResolver -===//
|
||||
//
|
||||
// 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
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "llvm/ExecutionEngine/Orc/TargetProcess/LibraryResolver.h"
|
||||
#include "llvm/ExecutionEngine/Orc/JITTargetMachineBuilder.h"
|
||||
#include "llvm/ExecutionEngine/Orc/TargetProcess/LibraryScanner.h"
|
||||
#include "llvm/ObjectYAML/MachOYAML.h"
|
||||
#include "llvm/ObjectYAML/yaml2obj.h"
|
||||
#include "llvm/Support/FileSystem.h"
|
||||
#include "llvm/Support/MemoryBuffer.h"
|
||||
#include "llvm/Support/Path.h"
|
||||
#include "llvm/Support/YAMLParser.h"
|
||||
#include "llvm/Support/YAMLTraits.h"
|
||||
#include "llvm/Support/raw_ostream.h"
|
||||
|
||||
#include "llvm/Testing/Support/SupportHelpers.h"
|
||||
|
||||
#include "gtest/gtest.h"
|
||||
|
||||
#include <algorithm>
|
||||
#include <optional>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
|
||||
using namespace llvm;
|
||||
using namespace llvm::orc;
|
||||
|
||||
#if defined(__APPLE__) || defined(__linux__)
|
||||
// TODO: Add COFF (Windows) support for these tests.
|
||||
// this facility also works correctly on Windows (COFF),
|
||||
// so we should eventually enable and run these tests for that platform as well.
|
||||
namespace {
|
||||
|
||||
#if defined(__APPLE__)
|
||||
constexpr const char *ext = ".dylib";
|
||||
#elif defined(_WIN32)
|
||||
constexpr const char *ext = ".dll";
|
||||
#else
|
||||
constexpr const char *ext = ".so";
|
||||
#endif
|
||||
|
||||
bool EnvReady = false;
|
||||
|
||||
Triple getTargetTriple() {
|
||||
auto JTMB = JITTargetMachineBuilder::detectHost();
|
||||
if (!JTMB) {
|
||||
consumeError(JTMB.takeError());
|
||||
return Triple();
|
||||
}
|
||||
return JTMB->getTargetTriple();
|
||||
}
|
||||
|
||||
static bool CheckHostSupport() {
|
||||
auto Triple = getTargetTriple();
|
||||
// TODO: Extend support to COFF (Windows) once test setup and YAML conversion
|
||||
// are verified.
|
||||
if (!Triple.isOSBinFormatMachO() &&
|
||||
!(Triple.isOSBinFormatELF() && Triple.getArch() == Triple::x86_64))
|
||||
return false;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
std::string getYamlFilePlatformExt() {
|
||||
auto Triple = getTargetTriple();
|
||||
if (Triple.isOSBinFormatMachO())
|
||||
return "_macho";
|
||||
else if (Triple.isOSBinFormatELF())
|
||||
return "_linux";
|
||||
|
||||
return "";
|
||||
}
|
||||
|
||||
unsigned getYamlDocNum() {
|
||||
// auto Triple = getTargetTriple();
|
||||
// if (Triple.isOSBinFormatELF())
|
||||
// return 1;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
class LibraryTestEnvironment : public ::testing::Environment {
|
||||
std::vector<std::string> CreatedDylibsDir;
|
||||
std::vector<std::string> CreatedDylibs;
|
||||
SmallVector<char, 128> DirPath;
|
||||
|
||||
public:
|
||||
void SetUp() override {
|
||||
if (!CheckHostSupport()) {
|
||||
EnvReady = false;
|
||||
return;
|
||||
}
|
||||
|
||||
StringRef ThisFile = __FILE__;
|
||||
SmallVector<char, 128> InputDirPath(ThisFile.begin(), ThisFile.end());
|
||||
sys::path::remove_filename(InputDirPath);
|
||||
sys::path::append(InputDirPath, "Inputs");
|
||||
if (!sys::fs::exists(InputDirPath))
|
||||
return;
|
||||
|
||||
SmallString<128> UniqueDir;
|
||||
sys::path::append(UniqueDir, InputDirPath);
|
||||
std::error_code EC = sys::fs::createUniqueDirectory(UniqueDir, DirPath);
|
||||
|
||||
if (EC)
|
||||
return;
|
||||
|
||||
// given yamlPath + DylibPath, validate + convert
|
||||
auto processYamlToDylib = [&](const SmallVector<char, 128> &YamlPath,
|
||||
const SmallVector<char, 128> &DylibPath,
|
||||
unsigned DocNum) -> bool {
|
||||
if (!sys::fs::exists(YamlPath)) {
|
||||
errs() << "YAML file missing: "
|
||||
<< StringRef(YamlPath.data(), YamlPath.size()) << "\n";
|
||||
EnvReady = false;
|
||||
return false;
|
||||
}
|
||||
|
||||
auto BufOrErr = MemoryBuffer::getFile(YamlPath);
|
||||
if (!BufOrErr) {
|
||||
errs() << "Failed to read "
|
||||
<< StringRef(YamlPath.data(), YamlPath.size()) << ": "
|
||||
<< BufOrErr.getError().message() << "\n";
|
||||
EnvReady = false;
|
||||
return false;
|
||||
}
|
||||
|
||||
yaml::Input yin(BufOrErr->get()->getBuffer());
|
||||
std::error_code EC;
|
||||
raw_fd_ostream outFile(StringRef(DylibPath.data(), DylibPath.size()), EC,
|
||||
sys::fs::OF_None);
|
||||
|
||||
if (EC) {
|
||||
errs() << "Failed to open "
|
||||
<< StringRef(DylibPath.data(), DylibPath.size())
|
||||
<< " for writing: " << EC.message() << "\n";
|
||||
EnvReady = false;
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!yaml::convertYAML(
|
||||
yin, outFile,
|
||||
[](const Twine &M) {
|
||||
// Handle or ignore errors here
|
||||
errs() << "Yaml Error :" << M << "\n";
|
||||
},
|
||||
DocNum)) {
|
||||
errs() << "Failed to convert "
|
||||
<< StringRef(YamlPath.data(), YamlPath.size()) << " to "
|
||||
<< StringRef(DylibPath.data(), DylibPath.size()) << "\n";
|
||||
EnvReady = false;
|
||||
return false;
|
||||
}
|
||||
|
||||
CreatedDylibsDir.push_back(std::string(sys::path::parent_path(
|
||||
StringRef(DylibPath.data(), DylibPath.size()))));
|
||||
CreatedDylibs.push_back(std::string(DylibPath.begin(), DylibPath.end()));
|
||||
return true;
|
||||
};
|
||||
|
||||
std::vector<const char *> LibDirs = {"Z", "A", "B", "C", "D"};
|
||||
|
||||
unsigned DocNum = getYamlDocNum();
|
||||
std::string YamlPltExt = getYamlFilePlatformExt();
|
||||
for (const auto &LibdirName : LibDirs) {
|
||||
// YAML path
|
||||
SmallVector<char, 128> YamlPath(InputDirPath.begin(), InputDirPath.end());
|
||||
SmallVector<char, 128> YamlFileName;
|
||||
YamlFileName.append(LibdirName, LibdirName + strlen(LibdirName));
|
||||
YamlFileName.append(YamlPltExt.begin(), YamlPltExt.end());
|
||||
sys::path::append(YamlPath, LibdirName, YamlFileName);
|
||||
sys::path::replace_extension(YamlPath, ".yaml");
|
||||
|
||||
// dylib path
|
||||
SmallVector<char, 128> DylibPath(DirPath.begin(), DirPath.end());
|
||||
SmallVector<char, 128> DylibFileName;
|
||||
StringRef prefix("lib");
|
||||
DylibFileName.append(prefix.begin(), prefix.end());
|
||||
DylibFileName.append(LibdirName, LibdirName + strlen(LibdirName));
|
||||
|
||||
sys::path::append(DylibPath, LibdirName);
|
||||
if (!sys::fs::exists(DylibPath)) {
|
||||
auto EC = sys::fs::create_directory(DylibPath);
|
||||
if (EC)
|
||||
return;
|
||||
}
|
||||
sys::path::append(DylibPath, DylibFileName);
|
||||
sys::path::replace_extension(DylibPath, ext);
|
||||
if (!processYamlToDylib(YamlPath, DylibPath, DocNum))
|
||||
return;
|
||||
}
|
||||
|
||||
EnvReady = true;
|
||||
}
|
||||
|
||||
void TearDown() override { sys::fs::remove_directories(DirPath); }
|
||||
|
||||
std::string getBaseDir() const {
|
||||
return std::string(DirPath.begin(), DirPath.end());
|
||||
}
|
||||
|
||||
std::vector<std::string> getDylibPaths() const { return CreatedDylibs; }
|
||||
};
|
||||
|
||||
static LibraryTestEnvironment *GlobalEnv =
|
||||
static_cast<LibraryTestEnvironment *>(
|
||||
::testing::AddGlobalTestEnvironment(new LibraryTestEnvironment()));
|
||||
|
||||
inline std::string libPath(const std::string &BaseDir,
|
||||
const std::string &name) {
|
||||
#if defined(__APPLE__)
|
||||
return BaseDir + "/" + name + ".dylib";
|
||||
#elif defined(_WIN32)
|
||||
return BaseDir + "/" + name + ".dll";
|
||||
#else
|
||||
return BaseDir + "/" + name + ".so";
|
||||
#endif
|
||||
}
|
||||
|
||||
inline std::string withext(const std::string &lib) {
|
||||
SmallString<128> P(lib);
|
||||
sys::path::replace_extension(P, ext);
|
||||
return P.str().str();
|
||||
}
|
||||
|
||||
inline std::string platformSymbolName(const std::string &name) {
|
||||
#if defined(__APPLE__)
|
||||
return "_" + name; // macOS prepends underscore
|
||||
#else
|
||||
return name;
|
||||
#endif
|
||||
}
|
||||
|
||||
struct TestLibrary {
|
||||
std::string path;
|
||||
std::vector<std::string> Syms;
|
||||
};
|
||||
|
||||
class LibraryResolverIT : public ::testing::Test {
|
||||
protected:
|
||||
std::string BaseDir;
|
||||
std::unordered_map<std::string, TestLibrary> libs;
|
||||
void SetUp() override {
|
||||
if (!EnvReady)
|
||||
GTEST_SKIP() << "Skipping test: environment setup failed.";
|
||||
|
||||
ASSERT_NE(GlobalEnv, nullptr);
|
||||
BaseDir = GlobalEnv->getBaseDir();
|
||||
libs["A"] = {libPath(BaseDir, "A/libA"), {platformSymbolName("sayA")}};
|
||||
libs["B"] = {libPath(BaseDir, "B/libB"), {platformSymbolName("sayB")}};
|
||||
libs["C"] = {libPath(BaseDir, "C/libC"), {platformSymbolName("sayC")}};
|
||||
libs["D"] = {libPath(BaseDir, "D/libD"), {platformSymbolName("sayD")}};
|
||||
libs["Z"] = {libPath(BaseDir, "Z/libZ"), {platformSymbolName("sayZ")}};
|
||||
for (const auto &P : GlobalEnv->getDylibPaths()) {
|
||||
if (!sys::fs::exists(P))
|
||||
GTEST_SKIP();
|
||||
}
|
||||
}
|
||||
|
||||
const std::vector<std::string> &sym(const std::string &key) {
|
||||
return libs[key].Syms;
|
||||
}
|
||||
const std::string &lib(const std::string &key) { return libs[key].path; }
|
||||
const std::string libdir(const std::string &key) {
|
||||
SmallString<512> P(libs[key].path);
|
||||
sys::path::remove_filename(P);
|
||||
return P.str().str();
|
||||
}
|
||||
const std::string libname(const std::string &key) {
|
||||
return sys::path::filename(libs[key].path).str();
|
||||
}
|
||||
};
|
||||
|
||||
// Helper: allow either "sayA" or "_sayA" depending on how your SymbolEnumerator
|
||||
// reports.
|
||||
static bool matchesEitherUnderscore(const std::string &got,
|
||||
const std::string &bare) {
|
||||
return got == bare || got == ("_" + bare);
|
||||
}
|
||||
|
||||
// Helper: normalize path ending check (we only care that it resolved to the
|
||||
// right dylib)
|
||||
static bool endsWith(const std::string &s, const std::string &suffix) {
|
||||
if (s.size() < suffix.size())
|
||||
return false;
|
||||
return std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
|
||||
}
|
||||
|
||||
// --- 1) SymbolEnumerator enumerates real exports from libC.dylib ---
|
||||
TEST_F(LibraryResolverIT, EnumerateSymbolsFromARespectsDefaults) {
|
||||
const std::string libC = lib("C");
|
||||
|
||||
SymbolEnumeratorOptions Opts = SymbolEnumeratorOptions::defaultOptions();
|
||||
|
||||
std::vector<std::string> seen;
|
||||
auto onEach = [&](llvm::StringRef sym) -> EnumerateResult {
|
||||
seen.emplace_back(sym.str());
|
||||
return EnumerateResult::Continue;
|
||||
};
|
||||
|
||||
const bool ok = SymbolEnumerator::enumerateSymbols(libC, onEach, Opts);
|
||||
ASSERT_TRUE(ok) << "enumerateSymbols failed on " << libC;
|
||||
|
||||
// We expect to see sayA (export) and not an undefined reference to printf.
|
||||
bool foundSayA = false;
|
||||
for (const auto &s : seen) {
|
||||
if (matchesEitherUnderscore(s, "sayA")) {
|
||||
foundSayA = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
EXPECT_FALSE(foundSayA) << "Expected exported symbol sayA in libC";
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, EnumerateSymbols_ExportsOnly_DefaultFlags) {
|
||||
const std::string libC = lib("C");
|
||||
SymbolEnumeratorOptions Opts = SymbolEnumeratorOptions::defaultOptions();
|
||||
|
||||
std::vector<std::string> seen;
|
||||
auto onEach = [&](llvm::StringRef sym) -> EnumerateResult {
|
||||
seen.emplace_back(sym.str());
|
||||
return EnumerateResult::Continue;
|
||||
};
|
||||
|
||||
ASSERT_TRUE(SymbolEnumerator::enumerateSymbols(libC, onEach, Opts));
|
||||
|
||||
// sayC is exported, others are undefined → only sayC expected
|
||||
EXPECT_TRUE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayC");
|
||||
}));
|
||||
EXPECT_FALSE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayA");
|
||||
}));
|
||||
EXPECT_FALSE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayB");
|
||||
}));
|
||||
EXPECT_FALSE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayZ");
|
||||
}));
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, EnumerateSymbols_IncludesUndefineds) {
|
||||
const std::string libC = lib("C");
|
||||
|
||||
SymbolEnumeratorOptions Opts;
|
||||
Opts.FilterFlags =
|
||||
SymbolEnumeratorOptions::IgnoreWeak |
|
||||
SymbolEnumeratorOptions::IgnoreIndirect; // no IgnoreUndefined
|
||||
|
||||
std::vector<std::string> seen;
|
||||
auto onEach = [&](llvm::StringRef sym) -> EnumerateResult {
|
||||
seen.emplace_back(sym.str());
|
||||
return EnumerateResult::Continue;
|
||||
};
|
||||
|
||||
ASSERT_TRUE(SymbolEnumerator::enumerateSymbols(libC, onEach, Opts));
|
||||
|
||||
// Now we should see both sayC (export) and the undefined refs sayA, sayB,
|
||||
// sayZ
|
||||
EXPECT_TRUE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayC");
|
||||
}));
|
||||
EXPECT_TRUE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayA");
|
||||
}));
|
||||
EXPECT_TRUE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayB");
|
||||
}));
|
||||
EXPECT_TRUE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayZ");
|
||||
}));
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, EnumerateSymbols_IndirectExportRespected) {
|
||||
const std::string libD = lib("D");
|
||||
|
||||
SymbolEnumeratorOptions Opts;
|
||||
Opts.FilterFlags = SymbolEnumeratorOptions::IgnoreWeak; // allow indirects
|
||||
|
||||
std::vector<std::string> seen;
|
||||
auto onEach = [&](llvm::StringRef sym) -> EnumerateResult {
|
||||
seen.emplace_back(sym.str());
|
||||
return EnumerateResult::Continue;
|
||||
};
|
||||
|
||||
ASSERT_TRUE(SymbolEnumerator::enumerateSymbols(libD, onEach, Opts));
|
||||
|
||||
// sayA is re-exported from A, so should appear unless IgnoreIndirect was set
|
||||
EXPECT_TRUE(any_of(seen, [&](const std::string &s) {
|
||||
return matchesEitherUnderscore(s, "sayA");
|
||||
}));
|
||||
}
|
||||
|
||||
// --- 2) Filters: if we remove IgnoreUndefined, we should also see undefineds
|
||||
// like printf ---
|
||||
TEST_F(LibraryResolverIT, EnumerateSymbolsIncludesUndefWhenNotIgnored) {
|
||||
const std::string libA = lib("A");
|
||||
|
||||
SymbolEnumeratorOptions Opts = SymbolEnumeratorOptions::defaultOptions();
|
||||
// Start from defaults but allow undefined
|
||||
Opts.FilterFlags &= ~SymbolEnumeratorOptions::IgnoreUndefined;
|
||||
|
||||
bool SawPrintf = false;
|
||||
auto onEach = [&](llvm::StringRef sym) -> EnumerateResult {
|
||||
if (matchesEitherUnderscore(sym.str(), "printf") ||
|
||||
matchesEitherUnderscore(sym.str(), "puts"))
|
||||
SawPrintf = true;
|
||||
return EnumerateResult::Continue;
|
||||
};
|
||||
|
||||
ASSERT_TRUE(SymbolEnumerator::enumerateSymbols(libA, onEach, Opts));
|
||||
EXPECT_TRUE(SawPrintf)
|
||||
<< "Expected to see undefined symbol printf when not filtered";
|
||||
}
|
||||
|
||||
// --- 3) Full resolution via LibraryResolutionDriver/LibraryResolver ---
|
||||
TEST_F(LibraryResolverIT, DriverResolvesSymbolsToCorrectLibraries) {
|
||||
// Create the resolver from real base paths (our fixtures dir)
|
||||
auto Stup = LibraryResolver::Setup::create({BaseDir});
|
||||
|
||||
// Full system behavior: no mocks
|
||||
auto Driver = LibraryResolutionDriver::create(Stup);
|
||||
ASSERT_NE(Driver, nullptr);
|
||||
|
||||
// Tell the Driver about the scan path kinds (User/System) as your production
|
||||
// code expects.
|
||||
Driver->addScanPath(libdir("A"), PathType::User);
|
||||
Driver->addScanPath(libdir("B"), PathType::User);
|
||||
Driver->addScanPath(libdir("Z"), PathType::User);
|
||||
|
||||
// Symbols to resolve (bare names; class handles underscore differences
|
||||
// internally)
|
||||
std::vector<std::string> Syms = {platformSymbolName("sayA"),
|
||||
platformSymbolName("sayB"),
|
||||
platformSymbolName("sayZ")};
|
||||
|
||||
bool CallbackRan = false;
|
||||
Driver->resolveSymbols(Syms, [&](SymbolQuery &Q) {
|
||||
CallbackRan = true;
|
||||
|
||||
// sayA should resolve to A.dylib
|
||||
{
|
||||
auto lib = Q.getResolvedLib(platformSymbolName("sayA"));
|
||||
ASSERT_TRUE(lib.has_value()) << "sayA should be resolved";
|
||||
EXPECT_TRUE(endsWith(lib->str(), libname("A")))
|
||||
<< "sayA resolved to: " << lib->str();
|
||||
}
|
||||
|
||||
// sayB should resolve to B.dylib
|
||||
{
|
||||
auto lib = Q.getResolvedLib(platformSymbolName("sayB"));
|
||||
ASSERT_TRUE(lib.has_value()) << "sayB should be resolved";
|
||||
EXPECT_TRUE(endsWith(lib->str(), libname("B")))
|
||||
<< "sayB resolved to: " << lib->str();
|
||||
}
|
||||
|
||||
// sayZ should resolve to B.dylib
|
||||
{
|
||||
auto lib = Q.getResolvedLib(platformSymbolName("sayZ"));
|
||||
ASSERT_TRUE(lib.has_value()) << "sayZ should be resolved";
|
||||
EXPECT_TRUE(endsWith(lib->str(), libname("Z")))
|
||||
<< "sayZ resolved to: " << lib->str();
|
||||
}
|
||||
|
||||
EXPECT_TRUE(Q.allResolved());
|
||||
});
|
||||
|
||||
EXPECT_TRUE(CallbackRan);
|
||||
}
|
||||
|
||||
// --- 4) Cross-library reference visibility (C references A) ---
|
||||
TEST_F(LibraryResolverIT, EnumeratorSeesInterLibraryRelationship) {
|
||||
const std::string libC = lib("C");
|
||||
|
||||
SymbolEnumeratorOptions OnlyUndef = SymbolEnumeratorOptions::defaultOptions();
|
||||
// Show only undefined (drop IgnoreUndefined) to see C's reference to sayA
|
||||
OnlyUndef.FilterFlags &= ~SymbolEnumeratorOptions::IgnoreUndefined;
|
||||
|
||||
bool SawSayAAsUndef = false;
|
||||
auto onEach = [&](llvm::StringRef sym) -> EnumerateResult {
|
||||
if (matchesEitherUnderscore(sym.str(), "sayA"))
|
||||
SawSayAAsUndef = true;
|
||||
return EnumerateResult::Continue;
|
||||
};
|
||||
|
||||
ASSERT_TRUE(SymbolEnumerator::enumerateSymbols(libC, onEach, OnlyUndef));
|
||||
EXPECT_TRUE(SawSayAAsUndef)
|
||||
<< "libC should have an undefined reference to sayA (defined in libA)";
|
||||
}
|
||||
|
||||
// // // --- 5) Optional: stress SymbolQuery with the real resolve flow
|
||||
// // // And resolve libC dependency libA, libB, libZ ---
|
||||
TEST_F(LibraryResolverIT, ResolveManySymbols) {
|
||||
auto Stup = LibraryResolver::Setup::create({BaseDir});
|
||||
auto Driver = LibraryResolutionDriver::create(Stup);
|
||||
ASSERT_NE(Driver, nullptr);
|
||||
Driver->addScanPath(libdir("C"), PathType::User);
|
||||
|
||||
// Many duplicates to provoke concurrent updates inside SymbolQuery
|
||||
std::vector<std::string> Syms = {
|
||||
platformSymbolName("sayA"), platformSymbolName("sayB"),
|
||||
platformSymbolName("sayA"), platformSymbolName("sayB"),
|
||||
platformSymbolName("sayZ"), platformSymbolName("sayZ"),
|
||||
platformSymbolName("sayZ"), platformSymbolName("sayZ"),
|
||||
platformSymbolName("sayA"), platformSymbolName("sayB"),
|
||||
platformSymbolName("sayA"), platformSymbolName("sayB")};
|
||||
|
||||
bool CallbackRan = false;
|
||||
Driver->resolveSymbols(Syms, [&](SymbolQuery &Q) {
|
||||
CallbackRan = true;
|
||||
EXPECT_TRUE(Q.isResolved(platformSymbolName("sayA")));
|
||||
EXPECT_TRUE(Q.isResolved(platformSymbolName("sayB")));
|
||||
EXPECT_TRUE(Q.isResolved(platformSymbolName("sayZ")));
|
||||
|
||||
auto A = Q.getResolvedLib(platformSymbolName("sayA"));
|
||||
auto B = Q.getResolvedLib(platformSymbolName("sayB"));
|
||||
auto Z = Q.getResolvedLib(platformSymbolName("sayZ"));
|
||||
ASSERT_TRUE(A.has_value());
|
||||
ASSERT_TRUE(B.has_value());
|
||||
ASSERT_TRUE(Z.has_value());
|
||||
EXPECT_TRUE(endsWith(A->str(), libname("A")));
|
||||
EXPECT_TRUE(endsWith(B->str(), libname("B")));
|
||||
EXPECT_TRUE(endsWith(Z->str(), libname("Z")));
|
||||
EXPECT_TRUE(Q.allResolved());
|
||||
});
|
||||
|
||||
EXPECT_TRUE(CallbackRan);
|
||||
}
|
||||
|
||||
// // // --- 5) Optional: stress SymbolQuery with the real resolve flow
|
||||
// // // And resolve libD dependency libA ---
|
||||
TEST_F(LibraryResolverIT, ResolveManySymbols2) {
|
||||
auto Stup = LibraryResolver::Setup::create({BaseDir});
|
||||
auto Driver = LibraryResolutionDriver::create(Stup);
|
||||
ASSERT_NE(Driver, nullptr);
|
||||
Driver->addScanPath(libdir("D"), PathType::User);
|
||||
|
||||
// Many duplicates to provoke concurrent updates inside SymbolQuery
|
||||
std::vector<std::string> Syms = {
|
||||
platformSymbolName("sayA"), platformSymbolName("sayB"),
|
||||
platformSymbolName("sayA"), platformSymbolName("sayB"),
|
||||
platformSymbolName("sayZ"), platformSymbolName("sayZ"),
|
||||
platformSymbolName("sayZ"), platformSymbolName("sayZ"),
|
||||
platformSymbolName("sayD"), platformSymbolName("sayD"),
|
||||
platformSymbolName("sayA"), platformSymbolName("sayB"),
|
||||
platformSymbolName("sayA"), platformSymbolName("sayB")};
|
||||
|
||||
Driver->resolveSymbols(Syms, [&](SymbolQuery &Q) {
|
||||
EXPECT_TRUE(Q.isResolved(platformSymbolName("sayA")));
|
||||
EXPECT_TRUE(Q.isResolved(platformSymbolName("sayD")));
|
||||
|
||||
auto A = Q.getResolvedLib(platformSymbolName("sayA"));
|
||||
auto D = Q.getResolvedLib(platformSymbolName("sayD"));
|
||||
ASSERT_TRUE(A.has_value());
|
||||
ASSERT_TRUE(D.has_value());
|
||||
EXPECT_TRUE(endsWith(A->str(), libname("A")));
|
||||
EXPECT_TRUE(endsWith(D->str(), libname("D")));
|
||||
EXPECT_FALSE(Q.allResolved());
|
||||
});
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, ScanSingleUserPath) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
LibraryScanHelper ScanH({}, LibPathCache, PResolver);
|
||||
|
||||
ScanH.addBasePath(libdir("C"), PathType::User);
|
||||
|
||||
std::error_code EC;
|
||||
auto libCPathOpt = PResolver->resolve(lib("C"), EC);
|
||||
|
||||
if (!libCPathOpt || EC) {
|
||||
FAIL();
|
||||
}
|
||||
|
||||
std::string libCPath = *libCPathOpt;
|
||||
|
||||
LibraryManager LibMgr;
|
||||
LibraryScanner Scanner(ScanH, LibMgr);
|
||||
|
||||
Scanner.scanNext(PathType::User, 0);
|
||||
|
||||
bool found = false;
|
||||
LibMgr.forEachLibrary([&](const LibraryInfo &lib) {
|
||||
if (lib.getFullPath() == libCPath) {
|
||||
found = true;
|
||||
}
|
||||
return true;
|
||||
});
|
||||
EXPECT_TRUE(found) << "Expected to find " << libCPath;
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, ScanAndCheckDeps) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
LibraryScanHelper ScanH({}, LibPathCache, PResolver);
|
||||
|
||||
ScanH.addBasePath(libdir("C"), PathType::User);
|
||||
|
||||
LibraryManager LibMgr;
|
||||
LibraryScanner Scanner(ScanH, LibMgr);
|
||||
|
||||
Scanner.scanNext(PathType::User, 0);
|
||||
|
||||
size_t count = 0;
|
||||
LibMgr.forEachLibrary([&](const LibraryInfo &) {
|
||||
count++;
|
||||
return true;
|
||||
});
|
||||
|
||||
EXPECT_GE(count, 3u) << "Should find at least libA in multiple paths";
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, ScanEmptyPath) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
LibraryScanHelper ScanH({}, LibPathCache, PResolver);
|
||||
|
||||
ScanH.addBasePath("/tmp/empty", PathType::User);
|
||||
|
||||
LibraryManager LibMgr;
|
||||
LibraryScanner Scanner(ScanH, LibMgr);
|
||||
|
||||
Scanner.scanNext(PathType::User, 0);
|
||||
|
||||
size_t count = 0;
|
||||
LibMgr.forEachLibrary([&](const LibraryInfo &) {
|
||||
count++;
|
||||
return true;
|
||||
});
|
||||
EXPECT_EQ(count, 0u);
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, PathResolverResolvesKnownPaths) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
|
||||
std::error_code EC;
|
||||
auto Missing = PResolver->resolve("temp/foo/bar", EC);
|
||||
EXPECT_FALSE(Missing.has_value()) << "Unexpectedly resolved a bogus path";
|
||||
EXPECT_TRUE(EC) << "Expected error resolving path";
|
||||
|
||||
auto DirPath = PResolver->resolve(BaseDir, EC);
|
||||
ASSERT_TRUE(DirPath.has_value());
|
||||
EXPECT_FALSE(EC) << "Expected no error resolving path";
|
||||
EXPECT_EQ(*DirPath, BaseDir);
|
||||
|
||||
auto DylibPath = PResolver->resolve(lib("C"), EC);
|
||||
ASSERT_TRUE(DylibPath.has_value());
|
||||
EXPECT_FALSE(EC) << "Expected no error resolving path";
|
||||
EXPECT_EQ(*DylibPath, lib("C"));
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, PathResolverNormalizesDotAndDotDot) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
|
||||
std::error_code EC;
|
||||
|
||||
// e.g. BaseDir + "/./C/../C/C.dylib" → BaseDir + "/C.dylib"
|
||||
std::string Messy = BaseDir + "/C/./../C/./libC" + ext;
|
||||
auto Resolved = PResolver->resolve(Messy, EC);
|
||||
ASSERT_TRUE(Resolved.has_value());
|
||||
EXPECT_FALSE(EC);
|
||||
EXPECT_EQ(*Resolved, lib("C")) << "Expected realpath to collapse . and ..";
|
||||
}
|
||||
|
||||
#if !defined(_WIN32)
|
||||
TEST_F(LibraryResolverIT, PathResolverFollowsSymlinks) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
|
||||
std::error_code EC;
|
||||
|
||||
// Create a symlink temp -> BaseDir (only if filesystem allows it)
|
||||
std::string linkName = BaseDir + withext("/link_to_C");
|
||||
std::string target = lib("C");
|
||||
::symlink(target.c_str(), linkName.c_str());
|
||||
|
||||
auto resolved = PResolver->resolve(linkName, EC);
|
||||
ASSERT_TRUE(resolved.has_value());
|
||||
EXPECT_FALSE(EC);
|
||||
EXPECT_EQ(*resolved, target);
|
||||
|
||||
::unlink(linkName.c_str()); // cleanup
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, PathResolverCachesResults) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
|
||||
SmallString<128> TmpDylib;
|
||||
sys::fs::createUniqueFile(withext("A-copy"), TmpDylib);
|
||||
sys::fs::copy_file(lib("A"), TmpDylib);
|
||||
|
||||
std::error_code EC;
|
||||
|
||||
// First resolve -> should populate LibPathCache
|
||||
auto first = PResolver->resolve(TmpDylib, EC);
|
||||
ASSERT_TRUE(first.has_value());
|
||||
|
||||
// Forcefully remove the file from disk
|
||||
::unlink(TmpDylib.c_str());
|
||||
|
||||
// Second resolve -> should still succeed from LibPathCache
|
||||
auto second = PResolver->resolve(TmpDylib, EC);
|
||||
EXPECT_TRUE(second.has_value());
|
||||
EXPECT_EQ(*second, *first);
|
||||
}
|
||||
#endif
|
||||
|
||||
TEST_F(LibraryResolverIT, LoaderPathSubstitutionAndResolve) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
|
||||
DylibSubstitutor substitutor;
|
||||
substitutor.configure(libdir("C"));
|
||||
#if defined(__APPLE__)
|
||||
// Substitute @loader_path with BaseDir
|
||||
std::string substituted =
|
||||
substitutor.substitute(withext("@loader_path/libC"));
|
||||
#elif defined(__linux__)
|
||||
// Substitute $origin with BaseDir
|
||||
std::string substituted = substitutor.substitute(withext("$ORIGIN/libC"));
|
||||
#endif
|
||||
ASSERT_FALSE(substituted.empty());
|
||||
EXPECT_EQ(substituted, lib("C"));
|
||||
|
||||
// Now try resolving the substituted path
|
||||
std::error_code EC;
|
||||
auto resolved = PResolver->resolve(substituted, EC);
|
||||
ASSERT_TRUE(resolved.has_value()) << "Expected to resolve substituted dylib";
|
||||
EXPECT_EQ(*resolved, lib("C"));
|
||||
EXPECT_FALSE(EC) << "Expected no error resolving substituted dylib";
|
||||
}
|
||||
|
||||
TEST_F(LibraryResolverIT, ResolveFromUsrOrSystemPaths) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
|
||||
DylibPathValidator validator(*PResolver);
|
||||
|
||||
std::vector<std::string> Paths = {"/foo/bar/", "temp/foo", libdir("C"),
|
||||
libdir("A"), libdir("B"), libdir("Z")};
|
||||
|
||||
SmallVector<StringRef> P(Paths.begin(), Paths.end());
|
||||
|
||||
DylibResolver Resolver(validator);
|
||||
Resolver.configure("", {{P, SearchPathType::UsrOrSys}});
|
||||
|
||||
// Check "C"
|
||||
auto ValOptC = Resolver.resolve("libC", true);
|
||||
EXPECT_TRUE(ValOptC.has_value());
|
||||
EXPECT_EQ(*ValOptC, lib("C"));
|
||||
|
||||
auto ValOptCdylib = Resolver.resolve(withext("libC"));
|
||||
EXPECT_TRUE(ValOptCdylib.has_value());
|
||||
EXPECT_EQ(*ValOptCdylib, lib("C"));
|
||||
|
||||
// Check "A"
|
||||
auto ValOptA = Resolver.resolve("libA", true);
|
||||
EXPECT_TRUE(ValOptA.has_value());
|
||||
EXPECT_EQ(*ValOptA, lib("A"));
|
||||
|
||||
auto ValOptAdylib = Resolver.resolve(withext("libA"));
|
||||
EXPECT_TRUE(ValOptAdylib.has_value());
|
||||
EXPECT_EQ(*ValOptAdylib, lib("A"));
|
||||
|
||||
// Check "B"
|
||||
auto ValOptB = Resolver.resolve("libB", true);
|
||||
EXPECT_TRUE(ValOptB.has_value());
|
||||
EXPECT_EQ(*ValOptB, lib("B"));
|
||||
|
||||
auto ValOptBdylib = Resolver.resolve(withext("libB"));
|
||||
EXPECT_TRUE(ValOptBdylib.has_value());
|
||||
EXPECT_EQ(*ValOptBdylib, lib("B"));
|
||||
|
||||
// Check "Z"
|
||||
auto ValOptZ = Resolver.resolve("libZ", true);
|
||||
EXPECT_TRUE(ValOptZ.has_value());
|
||||
EXPECT_EQ(*ValOptZ, lib("Z"));
|
||||
|
||||
auto ValOptZdylib = Resolver.resolve(withext("libZ"));
|
||||
EXPECT_TRUE(ValOptZdylib.has_value());
|
||||
EXPECT_EQ(*ValOptZdylib, lib("Z"));
|
||||
}
|
||||
|
||||
#if defined(__APPLE__)
|
||||
TEST_F(LibraryResolverIT, ResolveViaLoaderPathAndRPathSubstitution) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
|
||||
DylibPathValidator validator(*PResolver);
|
||||
|
||||
std::vector<std::string> Paths = {"@loader_path/../A", "@loader_path/../B",
|
||||
"@loader_path/../D", "@loader_path/../Z"};
|
||||
|
||||
SmallVector<StringRef> P(Paths.begin(), Paths.end());
|
||||
|
||||
DylibResolver Resolver(validator);
|
||||
|
||||
// Use only RPath config
|
||||
Resolver.configure(lib("C"), {{P, SearchPathType::RPath}});
|
||||
|
||||
// --- Check A ---
|
||||
auto ValOptA = Resolver.resolve("@rpath/libA", true);
|
||||
EXPECT_TRUE(ValOptA.has_value());
|
||||
EXPECT_EQ(*ValOptA, lib("A"));
|
||||
|
||||
auto ValOptAdylib = Resolver.resolve(withext("@rpath/libA"));
|
||||
EXPECT_TRUE(ValOptAdylib.has_value());
|
||||
EXPECT_EQ(*ValOptAdylib, lib("A"));
|
||||
|
||||
// --- Check B ---
|
||||
auto ValOptB = Resolver.resolve("@rpath/libB", true);
|
||||
EXPECT_TRUE(ValOptB.has_value());
|
||||
EXPECT_EQ(*ValOptB, lib("B"));
|
||||
|
||||
auto ValOptBdylib = Resolver.resolve(withext("@rpath/libB"));
|
||||
EXPECT_TRUE(ValOptBdylib.has_value());
|
||||
EXPECT_EQ(*ValOptBdylib, lib("B"));
|
||||
|
||||
// --- Check Z ---
|
||||
auto ValOptZ = Resolver.resolve("@rpath/libZ", true);
|
||||
EXPECT_TRUE(ValOptZ.has_value());
|
||||
EXPECT_EQ(*ValOptZ, lib("Z"));
|
||||
|
||||
auto ValOptZdylib = Resolver.resolve(withext("@rpath/libZ"));
|
||||
EXPECT_TRUE(ValOptZdylib.has_value());
|
||||
EXPECT_EQ(*ValOptZdylib, lib("Z"));
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(__linux__)
|
||||
TEST_F(LibraryResolverIT, ResolveViaOriginAndRPathSubstitution) {
|
||||
auto LibPathCache = std::make_shared<LibraryPathCache>();
|
||||
auto PResolver = std::make_shared<PathResolver>(LibPathCache);
|
||||
|
||||
DylibPathValidator validator(*PResolver);
|
||||
|
||||
// On Linux, $ORIGIN works like @loader_path
|
||||
std::vector<std::string> Paths = {"$ORIGIN/../A", "$ORIGIN/../B",
|
||||
"$ORIGIN/../D", "$ORIGIN/../Z"};
|
||||
|
||||
SmallVector<StringRef> P(Paths.begin(), Paths.end());
|
||||
|
||||
DylibResolver Resolver(validator);
|
||||
|
||||
// Use only RPath config
|
||||
Resolver.configure(lib("C"), {{P, SearchPathType::RunPath}});
|
||||
|
||||
// --- Check A ---
|
||||
auto ValOptA = Resolver.resolve("libA", true);
|
||||
EXPECT_TRUE(ValOptA.has_value());
|
||||
EXPECT_EQ(*ValOptA, lib("A"));
|
||||
|
||||
auto valOptASO = Resolver.resolve(withext("libA"));
|
||||
EXPECT_TRUE(valOptASO.has_value());
|
||||
EXPECT_EQ(*valOptASO, lib("A"));
|
||||
|
||||
// --- Check B ---
|
||||
auto ValOptB = Resolver.resolve("libB", true);
|
||||
EXPECT_TRUE(ValOptB.has_value());
|
||||
EXPECT_EQ(*ValOptB, lib("B"));
|
||||
|
||||
auto valOptBSO = Resolver.resolve(withext("libB"));
|
||||
EXPECT_TRUE(valOptBSO.has_value());
|
||||
EXPECT_EQ(*valOptBSO, lib("B"));
|
||||
|
||||
// --- Check Z ---
|
||||
auto ValOptZ = Resolver.resolve("libZ", true);
|
||||
EXPECT_TRUE(ValOptZ.has_value());
|
||||
EXPECT_EQ(*ValOptZ, lib("Z"));
|
||||
|
||||
auto valOptZSO = Resolver.resolve(withext("libZ"));
|
||||
EXPECT_TRUE(valOptZSO.has_value());
|
||||
EXPECT_EQ(*valOptZSO, lib("Z"));
|
||||
}
|
||||
#endif
|
||||
} // namespace
|
||||
#endif // defined(__APPLE__)
|
||||
Loading…
x
Reference in New Issue
Block a user