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088fd9a6ad
Summary: When adding one thin archive to another, we currently chop off the relative path to the flattened members. For instance, when adding `foo/child.a` (which contains `x.txt`) to `parent.a`, when flattening it we should add it as `foo/x.txt` (which exists) instead of `x.txt` (which does not exist). As a note, this also undoes the `IsNew` parameter of handling relative paths in r288280. The unit test there still passes. This was reported as part of testing the kernel build with llvm-ar: https://patchwork.kernel.org/patch/10767545/ (see the second point). Reviewers: mstorsjo, pcc, ruiu, davide, david2050, inglorion Reviewed By: ruiu Subscribers: void, jdoerfert, tpimh, mgorny, hans, nickdesaulniers, hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D57842 llvm-svn: 353995
48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
//===- ArchiveWriter.h - ar archive file format writer ----------*- 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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// Declares the writeArchive function for writing an archive file.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_OBJECT_ARCHIVEWRITER_H
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#define LLVM_OBJECT_ARCHIVEWRITER_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Object/Archive.h"
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#include "llvm/Support/Error.h"
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#include "llvm/Support/FileSystem.h"
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namespace llvm {
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struct NewArchiveMember {
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std::unique_ptr<MemoryBuffer> Buf;
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StringRef MemberName;
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sys::TimePoint<std::chrono::seconds> ModTime;
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unsigned UID = 0, GID = 0, Perms = 0644;
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NewArchiveMember() = default;
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NewArchiveMember(MemoryBufferRef BufRef);
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static Expected<NewArchiveMember>
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getOldMember(const object::Archive::Child &OldMember, bool Deterministic);
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static Expected<NewArchiveMember> getFile(StringRef FileName,
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bool Deterministic);
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};
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std::string computeArchiveRelativePath(StringRef From, StringRef To);
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Error writeArchive(StringRef ArcName, ArrayRef<NewArchiveMember> NewMembers,
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bool WriteSymtab, object::Archive::Kind Kind,
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bool Deterministic, bool Thin,
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std::unique_ptr<MemoryBuffer> OldArchiveBuf = nullptr);
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}
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#endif
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